chalk-animation | : clapper : Colorful animations in terminal output | Command Line Interface library

 by   bokub JavaScript Version: 2.0.3 License: MIT

kandi X-RAY | chalk-animation Summary

chalk-animation is a JavaScript library typically used in Utilities, Command Line Interface, Nodejs, NPM applications. chalk-animation has no bugs, it has no vulnerabilities, it has a Permissive License and it has medium support. You can install using 'npm i chalk-animation' or download it from GitHub, npm.
:clapper: Colorful animations in terminal output
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                      kandi-support Support

                        summary
                        chalk-animation has a medium active ecosystem.
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                        It has 1949 star(s) with 87 fork(s). There are 9 watchers for this library.
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                        There were 4 major release(s) in the last 12 months.
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                        There are 2 open issues and 12 have been closed. On average issues are closed in 9 days. There are 1 open pull requests and 0 closed requests.
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                        It has a neutral sentiment in the developer community.
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                        The latest version of chalk-animation is 2.0.3
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                                  kandi-Quality Quality

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                                    chalk-animation has 0 bugs and 0 code smells.
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                                              kandi-Security Security

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                                                chalk-animation has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
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                                                chalk-animation code analysis shows 0 unresolved vulnerabilities.
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                                                There are 0 security hotspots that need review.
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                                                          kandi-License License

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                                                            chalk-animation is licensed under the MIT License. This license is Permissive.
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                                                            Permissive licenses have the least restrictions, and you can use them in most projects.
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                                                                        chalk-animation releases are available to install and integrate.
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                                                                        Deployable package is available in npm.
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                                                                        Installation instructions are not available. Examples and code snippets are available.
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                                                                                  Top functions reviewed by kandi - BETA
                                                                                  kandi has reviewed chalk-animation and discovered the below as its top functions. This is intended to give you an instant insight into chalk-animation implemented functionality, and help decide if they suit your requirements.
                                                                                  • Animate a string
                                                                                    • Stop last animation
                                                                                      Get all kandi verified functions for this library.
                                                                                      Get all kandi verified functions for this library.

                                                                                      chalk-animation Key Features

                                                                                      :clapper: Colorful animations in terminal output

                                                                                      chalk-animation Examples and Code Snippets

                                                                                      Установка модулей
                                                                                      JavaScriptdot imgLines of Code : 1dot imgLicense : Permissive (MIT)
                                                                                      copy iconCopy
                                                                                      
                                                                                                                          npm install vk-io chalk chalk-animation
                                                                                      Community Discussions

                                                                                      Trending Discussions on Command Line Interface

                                                                                      Argparse outputting help text twice
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                                                                                      QUESTION

                                                                                      Argparse outputting help text twice
                                                                                      Asked 2022-Feb-25 at 21:44

                                                                                      After an hour googling, I can't find anybody who has had anything resembling this issue besides myself. I created a command line interface with argparse. Originally I had tried to leverage argparse's built in help text behavior. But my boss isn't satisfied with the default help text, so he is having me write up the full usage/help text in a text file and just display the entire file.

                                                                                      For some reason, in a certain case, its outputting the text twice.

                                                                                      Here is the basics of how my program is broken down:

                                                                                      I have a top level parser. I read in my help text file, set it to a string help_text, and then set "usage=help_text" on the parser. Then I create subparsers (4 of them and then a base case) to create subcommands. Only one of those subparsers has any additional arguments (one positional, one optional). Before I reworked the help text, I had help text for each individual subcommand by using "help=" but now those are all blank. Lastly, I have set up a base case to display the help text whenever no subcommands are given.

                                                                                      Here is the behavior I'm getting:

                                                                                      When I call the main function with no subcommands and no arguments, my help_text from the text file outputs, and then like 2-3 additional lines of boiler plate I can't seem to get rid of. Also because the word usage appears in my text file, it says "usage: usage"

                                                                                      When I call the main command and then type --help, the exact same thing happens as above.

                                                                                      When I call the one subcommand that has a required positional argument and I don't include that argument... it spits out the entire help text twice. Right above the second time it prints, it prints the default usage line for that subcommand.

                                                                                      Lastly, when I use a different subcommand that has no arguments and give it an argument (one too many) it spits out everything completely correctly without even the extra couple lines at the end.

                                                                                      I don't know how to make heads or tales about this. Here is the main function of the script (I can verify that this problem occurs only in the main function where argparse is used, not the other functions that the main function calls):

                                                                                      def main():
                                                                                          # Import help text from file
                                                                                          p = Path(__file__).with_name("help_text.txt")
                                                                                          with p.open() as file:
                                                                                              help_text = file.read()
                                                                                      
                                                                                          # Configure the top level Parser
                                                                                          parser = argparse.ArgumentParser(prog='hubmap-clt', description='Name of cli', usage=help_text)
                                                                                          subparsers = parser.add_subparsers()
                                                                                      
                                                                                          # Create Subparsers to give subcommands
                                                                                          parser_transfer = subparsers.add_parser('subcommandone')
                                                                                          parser_transfer.add_argument('argument1', type=str)
                                                                                          parser_transfer.add_argument('--optionalargument', default='mydefault')
                                                                                          parser_login = subparsers.add_parser('subcommandtwo')
                                                                                          parser_whoami = subparsers.add_parser('subcommandthree')
                                                                                          parser_logout = subparsers.add_parser('subcommandfour')
                                                                                      
                                                                                          # Assign subparsers to their respective functions
                                                                                          parser_subcommandone.set_defaults(func=subcommandone)
                                                                                          parser_subcommandtwo.set_defaults(func=subcommandtwo)
                                                                                          parser_subcommandthree.set_defaults(func=subcommandthree)
                                                                                          parser_subcommandfour.set_defaults(func=subcommandfour)
                                                                                          parser.set_defaults(func=base_case)
                                                                                      
                                                                                          # Parse the arguments and call appropriate functions
                                                                                          args = parser.parse_args()
                                                                                          if len(sys.argv) == 1:
                                                                                              args.func(args, parser)
                                                                                          else:
                                                                                              args.func(args)
                                                                                      

                                                                                      So to clarify:

                                                                                      Why does the extra couple lines of boiler-plat help text appear sometimes which looks like this:

                                                                                       name of cli
                                                                                      
                                                                                       positional arguments:
                                                                                           {subcommandone,subcommandtwo,subcommandthree,subcommandfour}
                                                                                      
                                                                                       optional arguments:
                                                                                          -h, --help            show this help message and exit
                                                                                      

                                                                                      Why does using subcommandone with too few arguments print out the help text twice (but NOT the extra lines of boiler-plate help text.

                                                                                      why does using subcommandtwo with one too MANY arguments print everything perfectly without any extra lines?

                                                                                      ANSWER

                                                                                      Answered 2022-Feb-25 at 21:44

                                                                                      With a modification of your main:

                                                                                      def foo():
                                                                                          # Import help text from file
                                                                                          # p = Path(__file__).with_name("help_text.txt")
                                                                                          # with p.open() as file:
                                                                                          #    help_text = file.read()
                                                                                          help_text = "cli usage: foobar\n morebar"
                                                                                      
                                                                                          # Configure the top level Parser
                                                                                          parser = argparse.ArgumentParser(
                                                                                              prog="hubmap-clt", description="Name of cli", usage=help_text
                                                                                          )
                                                                                          subparsers = parser.add_subparsers()
                                                                                      
                                                                                          # Create Subparsers to give subcommands
                                                                                          parser_transfer = subparsers.add_parser("subcommandone")
                                                                                          parser_transfer.add_argument("argument1", type=str)
                                                                                          parser_transfer.add_argument("--optionalargument", default="mydefault")
                                                                                          parser_login = subparsers.add_parser("subcommandtwo")
                                                                                          # parser_whoami = subparsers.add_parser("subcommandthree")
                                                                                          # parser_logout = subparsers.add_parser("subcommandfour")
                                                                                      
                                                                                          # Assign subparsers to their respective functions
                                                                                          parser_transfer.set_defaults(func="subcommandone")
                                                                                          parser_login.set_defaults(func="subcommandtwo")
                                                                                          # parser_subcommandthree.set_defaults(func="subcommandthree")
                                                                                          # parser_subcommandfour.set_defaults(func="subcommandfour")
                                                                                          parser.set_defaults(func="base_case")
                                                                                      
                                                                                          return parser
                                                                                      

                                                                                      in an iteractive ipython session:

                                                                                      In [8]: p = foo()
                                                                                      
                                                                                      In [9]: p.print_usage()
                                                                                      usage: cli usage: foobar
                                                                                       morebar
                                                                                      

                                                                                      Usage is exactly as I specified. And the help for the main parser:

                                                                                      In [10]: p.print_help()
                                                                                      usage: cli usage: foobar
                                                                                       morebar
                                                                                      
                                                                                      Name of cli
                                                                                      
                                                                                      positional arguments:
                                                                                        {subcommandone,subcommandtwo}
                                                                                      
                                                                                      optional arguments:
                                                                                        -h, --help            show this help message and exit
                                                                                      

                                                                                      That's what I expect given the arguments.

                                                                                      Help for a subparser:

                                                                                      In [11]: p.parse_args(["subcommandone", "-h"])
                                                                                      usage: cli usage: foobar
                                                                                       morebar subcommandone [-h] [--optionalargument OPTIONALARGUMENT] argument1
                                                                                      
                                                                                      positional arguments:
                                                                                        argument1
                                                                                      
                                                                                      optional arguments:
                                                                                        -h, --help            show this help message and exit
                                                                                        --optionalargument OPTIONALARGUMENT
                                                                                      

                                                                                      Usage is like the main's but with some added info on how to call this subparser and its arguments.

                                                                                      Error when calling the subparsers without enough values:

                                                                                      In [15]: p.parse_args(["subcommandone"])
                                                                                      usage: cli usage: foobar
                                                                                       morebar subcommandone [-h] [--optionalargument OPTIONALARGUMENT] argument1
                                                                                      cli usage: foobar
                                                                                       morebar subcommandone: error: the following arguments are required: argument1
                                                                                      

                                                                                      Is this repeat of cli usage that bothering you? This error is raised by the subparser, and I suspect the extra comes from the prog of that subparser. I think I saw something like this on the Python bug/issues for argparse.

                                                                                      error with too much:

                                                                                      In [17]: p.parse_args(["subcommandone", "test", "extra"])
                                                                                      usage: cli usage: foobar
                                                                                       morebar
                                                                                      hubmap-clt: error: unrecognized arguments: extra
                                                                                      

                                                                                      In this case error is produced by the main parser, hence the "hubmat-clt" prog.

                                                                                      change prog:

                                                                                      ...: parser_transfer = subparsers.add_parser( ...: "subcommandone", prog="hubmap-clt sobcommandone" ...: )

                                                                                      In [21]: p.parse_args(["subcommandone", "test", "extra"])
                                                                                      usage: cli usage: foobar
                                                                                       morebar
                                                                                      hubmap-clt: error: unrecognized arguments: extra
                                                                                      
                                                                                      In [22]: p.parse_args(["subcommandone"])
                                                                                      usage: hubmap-clt sobcommandone [-h] [--optionalargument OPTIONALARGUMENT] argument1
                                                                                      hubmap-clt sobcommandone: error: the following arguments are required: argument1
                                                                                      

                                                                                      [21] is as before [17]. But [22] is now showing the prog that I set. I could also have specified a custom usage for the subparser.

                                                                                      If I modify the function to use default usage and prog, but also display the subparser's prog. And I gave the main an "main_foo" positional argument:

                                                                                      In [30]: p = foo()
                                                                                      hubmap-clt main_foo subcommandone
                                                                                      In [31]: p.parse_args(["subcommandone"])
                                                                                      Out[31]: Namespace(main_foo='subcommandone')
                                                                                      In [32]: p.parse_args(["foo", "subcommandone"])
                                                                                      usage: hubmap-clt main_foo subcommandone [-h] [--optionalargument OPTIONALARGUMENT] argument1
                                                                                      hubmap-clt main_foo subcommandone: error: the following arguments are required: argument1
                                                                                      

                                                                                      Notice how the main's usage has been incorporated into the 'prog' for the subparser.

                                                                                      In the bug/issue I found the main parser's usage gets incorporated into the prog of the subparser. That's why you see the duplicate.

                                                                                      https://bugs.python.org/issue42297 [argparse] Bad error message formatting when using custom usage text

                                                                                      The relatively recent date of this bug issue indicates that custom usage is not that common, and even less so when used with subparsers. As my post on this issue indicates, the relation between the main parser, the "subparsers" command, and individual subparsers gets complicated.

                                                                                      Source https://stackoverflow.com/questions/71270655

                                                                                      QUESTION

                                                                                      Solving conda environment stuck
                                                                                      Asked 2021-Dec-22 at 18:02

                                                                                      I'm trying to install conda environment using the command:

                                                                                      conda env create -f devenv.yaml
                                                                                      

                                                                                      My .yaml file is

                                                                                      name: myname
                                                                                      channels:
                                                                                        - conda-forge
                                                                                        - bioconda
                                                                                      dependencies:
                                                                                        # Package creation and environment management
                                                                                        - conda-build
                                                                                        # Automation control (command line interface, workflow and multi-process management)
                                                                                        - python-dotenv
                                                                                        - click
                                                                                        - snakemake-minimal
                                                                                        - joblib
                                                                                        - numba
                                                                                        # Workspace
                                                                                        - notebook
                                                                                        # Visualization
                                                                                        - plotly
                                                                                        - plotly-orca
                                                                                        - matplotlib
                                                                                        - seaborn
                                                                                        - shap
                                                                                        - openpyxl
                                                                                        - ipywidgets
                                                                                        - tensorboard
                                                                                        # Data manipulation
                                                                                        - numpy
                                                                                        - pandas
                                                                                        - pyarrow
                                                                                        # Functional style tools
                                                                                        - more-itertools
                                                                                        - toolz
                                                                                        # Machine learning
                                                                                        - scikit-learn
                                                                                        - imbalanced-learn
                                                                                        - scikit-image
                                                                                        - statsmodels
                                                                                        - catboost
                                                                                        - hyperopt
                                                                                        - tsfresh
                                                                                        # Deep learning
                                                                                        - pytorch
                                                                                        # code checking and formatting
                                                                                        - pylint
                                                                                        - black
                                                                                        - flake8
                                                                                        - mypy
                                                                                        # Python base
                                                                                        - python
                                                                                        - pip
                                                                                        - pip:
                                                                                      

                                                                                      I've tried to update conda but it doesn't help. It just stuck on solving the environment.

                                                                                      conda version: 4.11.0 c OS: Ubuntu 18.04.5 LTS

                                                                                      The exact same environment works fine on my mac, but not on that server. What could be the issue? I appreciate any suggestions. Thx.

                                                                                      ANSWER

                                                                                      Answered 2021-Dec-22 at 18:02

                                                                                      This solves fine (), but is indeed a complex solve mainly due to:

                                                                                      • underspecification
                                                                                      • lack of modularization
                                                                                      Underspecification

                                                                                      This particular environment specification ends up installing well over 300 packages. And there isn't a single one of those that are constrained by the specification. That is a huge SAT problem to solve and Conda will struggle with this. Mamba will help solve faster, but providing additional constraints can vastly reduce the solution space.

                                                                                      At minimum, specify a Python version (major.minor), such as python=3.9. This is the single most effective constraint.

                                                                                      Beyond that, putting minimum requirements on central packages (those that are dependencies of others) can help, such as minimum NumPy.

                                                                                      Lack of Modularization

                                                                                      I assume the name "devenv" means this is a development environment. So, I get that one wants all these tools immediately at hand. However, Conda environment activation is so simple, and most IDE tooling these days (Spyder, VSCode, Jupyter) encourages separation of infrastructure and the execution kernel. Being more thoughtful about how environments (emphasis on the plural) are organized and work together, can go a long way in having a sustainable and painless data science workflow.

                                                                                      The environment at hand has multiple red flags in my book:

                                                                                      • conda-build should be in base and only in base
                                                                                      • snakemake should be in a dedicated environment
                                                                                      • notebook (i.e., Jupyter) should be in a dedicated environment, co-installed with nb_conda_kernels; all kernel environments need are ipykernel

                                                                                      I'd probably also have the linting/formatting packages separated, but that's less an issue. The real killer though is snakemake - it's just a massive piece of infrastructure and I'd strongly encourage keeping that separated.

                                                                                      Source https://stackoverflow.com/questions/70451652

                                                                                      QUESTION

                                                                                      Mysql Error while piping database to different server
                                                                                      Asked 2021-Nov-28 at 19:48

                                                                                      I have a strange error here. The command I am executing is this:

                                                                                      mysqldump -u root -ppass kodi_video119 | mysql -h192.168.178.73 -u kodi -ppass kodi_video119
                                                                                      

                                                                                      When I execute it over SSH it all works fine, but when I save it to a file and execute this file I get the following error:

                                                                                      mysqldump: [Warning] Using a password on the command line interface can be insecure.
                                                                                      mysql: [Warning] Using a password on the command line interface can be insecure.
                                                                                      'RROR 1102 (42000): Incorrect database name 'kodi_video119
                                                                                      mysqldump: Got errno 11 on write
                                                                                      

                                                                                      I can't find any results using google on that error number. The user is allowed to write and it all works fine when I execute it direcly from SSH. But using the same SSH session (as root user) just executing the command embedded in the file it does not work.

                                                                                      Whats going wrong here? I created the file using nano and saved it using nano. Then chmod +x and execute ./test

                                                                                      ANSWER

                                                                                      Answered 2021-Nov-28 at 19:48

                                                                                      By default, when you use mysqldump DB, the output includes table-creation statements, but no CREATE DATABASE statement. It just assumes you have created an empty schema first.

                                                                                      So you could do this to create the schema first:

                                                                                      mysqladmin -h192.168.178.73 create kodi_video119
                                                                                      mysqldump kodi_video119 | mysql -h192.168.178.73 kodi_video119
                                                                                      

                                                                                      (I left out the -u and -p options for brevity)

                                                                                      Alternatively, you can use the -B option, aka --databases. This option allows you to specify one or more databases, and the output includes CREATE DATABASE statements for each one before it then creates and populates tables. You can use it with a single database argument:

                                                                                      mysqldump -B kodi_video119 | mysql -h192.168.178.73 kodi_video119
                                                                                      

                                                                                      Source https://stackoverflow.com/questions/70146691

                                                                                      QUESTION

                                                                                      Shell script to pull row counts from all Hive tables in multiple Hive databases
                                                                                      Asked 2021-Nov-22 at 07:57

                                                                                      I am trying to create a shell script that will pull row counts in all tables from multiple databases. All of the databases follow the same naming convention "the_same_databasename_<%>" except the final layer in the name, which varies. I am trying to run the following:

                                                                                      use ; show tables; select count(*) from ;

                                                                                      Since I have 40 different databases, I would need to run the first two queries for each database 40 different times, plus the select count query even more depending on how many table in the database (very time consuming). I have my PuTTy configuration settings set to save my PuTTy sessions into a .txt on my local directory, so I can have the row count results displayed right in my command line interface. So far this is what I have but not sure how to include the final commands to get the actual row counts from the tables in each database.

                                                                                      #!/bin/bash
                                                                                      for db in $(hive -e "show databases like 'the_same_databasename_*;") 
                                                                                      do
                                                                                         tbl_count=$(hive -S -e "use $db; show tables;" | wc -l)
                                                                                         echo "Database $db contains $tbl_count tables."
                                                                                        
                                                                                      done    
                                                                                      

                                                                                      I'm not very experienced in shell scripting so any guidance/help is greatly appreciated. Thanks in advance.

                                                                                      ANSWER

                                                                                      Answered 2021-Nov-22 at 07:57

                                                                                      You can use nested for-loop:

                                                                                      #!/bin/bash
                                                                                      for db in $(hive -e "show databases like 'the_same_databasename_*;") 
                                                                                      do
                                                                                         tbl_count=$(hive -S -e "use $db; show tables;" | wc -l)
                                                                                         echo "Database $db contains $tbl_count tables."
                                                                                      
                                                                                         for table in $(hive -S -e "use $db; show tables;")
                                                                                         do
                                                                                            count=$(hive -S -e "use $db; select count(*) from $table;")
                                                                                            echo "Table $db.$table contains $count rows."
                                                                                         done
                                                                                         
                                                                                      done
                                                                                      

                                                                                      Or you can use variable to increment count of tables

                                                                                      #!/bin/bash
                                                                                      for db in $(hive -e "show databases like 'the_same_databasename_*;") 
                                                                                      do
                                                                                      
                                                                                         tbl_count=0
                                                                                         for table in $(hive -S -e "use $db; show tables;")
                                                                                         do
                                                                                            (( tbl_count++ ))
                                                                                            count=$(hive -S -e "use $db; select count(*) from $table;")
                                                                                            echo "Table $db.$table contains $count rows."
                                                                                         done
                                                                                         echo "Database $db contains $tbl_count tables."
                                                                                         
                                                                                      done
                                                                                      

                                                                                      Source https://stackoverflow.com/questions/70057982

                                                                                      QUESTION

                                                                                      See workspace in MATLAB command line terminal
                                                                                      Asked 2021-Nov-20 at 09:18

                                                                                      Is there any command to see all variable names, types and values in command line interface? Similar to Matlab's Workspace? I already know about command whos but it doesn't show the values, It just shows names and types.

                                                                                      Thanks :)

                                                                                      ANSWER

                                                                                      Answered 2021-Nov-20 at 09:18

                                                                                      try this:

                                                                                      vals = who;
                                                                                      for val = vals
                                                                                          eval(val.name)
                                                                                      end
                                                                                      

                                                                                      Source https://stackoverflow.com/questions/69924096

                                                                                      QUESTION

                                                                                      How can I fix "Failed to compile src/index.js 'firebase' is not defined no-undef"?
                                                                                      Asked 2021-Nov-12 at 21:59

                                                                                      I am trying to use a React web app to read and write stuff in a Firebase realtime database. Every time I run "npm run start", I get this error message.

                                                                                      Failed to compile
                                                                                      src/index.js
                                                                                        Line 25:1:   'firebase' is not defined  no-undef
                                                                                        Line 28:16:  'firebase' is not defined  no-undef
                                                                                      
                                                                                      Search for the keywords to learn more about each error.
                                                                                      This error occurred during the build time and cannot be dismissed.
                                                                                      

                                                                                      This is what package.json, src/index.js, build/index.html, and public/index.html looked like when I first got this error. (is it bad to have 2 index.html files?)

                                                                                      {
                                                                                        "name": "my-app",
                                                                                        "version": "0.1.0",
                                                                                        "private": true,
                                                                                        "dependencies": {
                                                                                          "@material-ui/core": "^4.12.2",
                                                                                          "@testing-library/jest-dom": "^5.14.1",
                                                                                          "@testing-library/react": "^11.2.7",
                                                                                          "@testing-library/user-event": "^12.8.3",
                                                                                          "firebase": "^9.0.0",
                                                                                          "react": "^17.0.2",
                                                                                          "react-dom": "^17.0.2",
                                                                                          "react-router-config": "^5.1.1",
                                                                                          "react-router-dom": "^5.2.0",
                                                                                          "react-scripts": "4.0.3",
                                                                                          "web-vitals": "^1.1.2"
                                                                                        },
                                                                                        "scripts": {
                                                                                          "start": "react-scripts start",
                                                                                          "build": "react-scripts build",
                                                                                          "test": "react-scripts test",
                                                                                          "eject": "react-scripts eject"
                                                                                        },
                                                                                        "eslintConfig": {
                                                                                          "extends": [
                                                                                            "react-app",
                                                                                            "react-app/jest"
                                                                                          ]
                                                                                        },
                                                                                        "browserslist": {
                                                                                          "production": [
                                                                                            ">0.2%",
                                                                                            "not dead",
                                                                                            "not op_mini all"
                                                                                          ],
                                                                                          "development": [
                                                                                            "last 1 chrome version",
                                                                                            "last 1 firefox version",
                                                                                            "last 1 safari version"
                                                                                          ]
                                                                                        }
                                                                                      }

                                                                                      import React from 'react';
                                                                                      import ReactDOM from 'react-dom';
                                                                                      //import './index.css';
                                                                                      //import App from './App';
                                                                                      //import reportWebVitals from './reportWebVitals';
                                                                                      // Import the functions you need from the SDKs you need
                                                                                      import { initializeApp } from "firebase/app";
                                                                                      import { getAnalytics } from "firebase/analytics";
                                                                                      // TODO: Add SDKs for Firebase products that you want to use
                                                                                      // https://firebase.google.com/docs/web/setup#available-libraries
                                                                                      
                                                                                      // Your web app's Firebase configuration
                                                                                      // For Firebase JS SDK v7.20.0 and later, measurementId is optional
                                                                                      const config = {
                                                                                        apiKey: "AIzaSyBk5lf0WtiZPs1ZQkA48OfXpzW7P_RCrZk",
                                                                                        authDomain: "test-c2ec9.firebaseapp.com",
                                                                                        projectId: "test-c2ec9",
                                                                                        storageBucket: "test-c2ec9.appspot.com",
                                                                                        messagingSenderId: "11138018851",
                                                                                        appId: "1:11138018851:web:ecfb63337ca11f62028b96",
                                                                                        measurementId: "G-3S1M3601YR"
                                                                                      };
                                                                                      
                                                                                      // Initialize Firebase
                                                                                      firebase.initializeApp(config);
                                                                                      
                                                                                      // Get a reference to the database service
                                                                                      var database = firebase.database();
                                                                                      const app = initializeApp(config);
                                                                                      const analytics = getAnalytics(app);
                                                                                      
                                                                                      ReactDOM.render(
                                                                                        
                                                                                        ,
                                                                                        document.getElementById('root')
                                                                                      );
                                                                                      
                                                                                      // If you want to start measuring performance in your app, pass a function
                                                                                      // to log results (for example: reportWebVitals(console.log))
                                                                                      // or send to an analytics endpoint. 
                                                                                      //reportWebVitals();

                                                                                      
                                                                                      
                                                                                        
                                                                                          
                                                                                          
                                                                                          Welcome to Firebase Hosting
                                                                                      
                                                                                          
                                                                                          
                                                                                          
                                                                                          
                                                                                          
                                                                                          
                                                                                          
                                                                                          
                                                                                          
                                                                                          
                                                                                          
                                                                                          
                                                                                          
                                                                                          
                                                                                      
                                                                                          
                                                                                        
                                                                                        
                                                                                          
                                                                                            Welcome
                                                                                            Firebase Hosting Setup Complete
                                                                                            

                                                                                      You're seeing this because you've successfully setup Firebase Hosting. Now it's time to go build something extraordinary!

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                                                                                          React App
                                                                                        
                                                                                        
                                                                                          You need to enable JavaScript to run this app.
                                                                                          
                                                                                          
                                                                                          
                                                                                          
                                                                                      
                                                                                          
                                                                                          
                                                                                          
                                                                                          
                                                                                        
                                                                                      

                                                                                      Lines 25 and 28 in src/index.js are "firebase.initializeApp(config);" and "var database = firebase.database();", respectively. You should be able to reproduce this error by following these steps:

                                                                                      create test/package.json, test/src/index.js, test/build/index.html, and test/public/index.html
                                                                                      copy and paste the above 4 snippets into their respective files
                                                                                      save the 4 files
                                                                                      open a command line interface
                                                                                      use cd to navigate to the test folder
                                                                                      run "npm install"
                                                                                      run "npm run start"

                                                                                      Commenting out lines 25 and 28 causes a much longer error message that starts with "Firebase: No Firebase App '[DEFAULT]' has been created - call Firebase App.initializeApp() (app/no-app)." When I searched that error message, I got results telling me to add those lines back into index.js, which leads me back to this "'firebase' is not defined" error. Additionally, I tried each of these things, and I still got the same error message.

                                                                                      restarting my computer
                                                                                      following this tutorial
                                                                                      changing line 28 to "var rootref = firebase.database().ref();"
                                                                                      running "npm start" instead of "npm run start"
                                                                                      pasting this snippet in the head part of build/index.html and public/index.html

                                                                                      
                                                                                      
                                                                                      
                                                                                      

                                                                                      pasting this snippet in the head part of build/index.html and public/index.html

                                                                                      
                                                                                      
                                                                                      

                                                                                      pasting this snippet in the head part of build/index.html and public/index.html

                                                                                      
                                                                                      
                                                                                      

                                                                                      pasting this snippet in the head part of build/index.html and public/index.html

                                                                                      
                                                                                      
                                                                                      

                                                                                      copying this snippet from the head part of build/index.html and pasting it in public/index.html

                                                                                      
                                                                                      
                                                                                      
                                                                                      
                                                                                      
                                                                                      
                                                                                      
                                                                                      
                                                                                      
                                                                                      
                                                                                      
                                                                                      
                                                                                      
                                                                                      
                                                                                      

                                                                                      Is there anything else that I can try?

                                                                                      ANSWER

                                                                                      Answered 2021-Nov-12 at 21:59

                                                                                      Recently, Firebase announced that version 9 of Firebase SDK JS is generally available. This was done to do some optimisations. Try using:

                                                                                      import { initializeApp } from 'firebase/app';
                                                                                      import { getAuth, onAuthStateChanged } from 'firebase/auth';
                                                                                      

                                                                                      and

                                                                                      const firebaseApp = initializeApp({ /* config */ });
                                                                                      const auth = getAuth();
                                                                                      onAuthStateChanged(auth, user => { console.log(user); });
                                                                                      

                                                                                      instead of

                                                                                      import firebase from 'firebase/app';
                                                                                      import 'firebase/auth';
                                                                                      

                                                                                      and

                                                                                      const firebaseApp = firebase.initializeApp({ /* config */ });
                                                                                      const auth = firebaseApp.auth();
                                                                                      auth.onAuthStateChanged(user => { console.log(user); });
                                                                                      

                                                                                      Refer to this link for further reference: https://firebase.google.com/docs/web/modular-upgrade

                                                                                      Source https://stackoverflow.com/questions/68959965

                                                                                      QUESTION

                                                                                      Array of structs only takes last value in C
                                                                                      Asked 2021-Nov-05 at 19:41

                                                                                      I'm trying to make a simple command line interface, but i'm having a probleme for parsing commands :

                                                                                      process_t is a structure contient the path of the command with arguments to be stored in the variable argv.

                                                                                      int parse_cmd(char* tokens[], process_t* commands) {
                                                                                          assert(tokens!=NULL);
                                                                                          assert(commands!=NULL);
                                                                                          
                                                                                          int position = 0;
                                                                                          int commandNumber = 0;
                                                                                              
                                                                                          for(int i=0; tokens[i] != NULL; i++){
                                                                                              if(is_reserved(tokens[i]) == 0 && tokens[i+1] != NULL) continue;
                                                                                              int end = is_reserved(tokens[i]) == 0 ? i+1 : i;
                                                                                              int argc = position;
                                                                                              int count = 0;
                                                                                              
                                                                                              process_t newProcess;
                                                                                      
                                                                                              char* argv[MAX_CMD_SIZE] = {NULL};
                                                                                              for(argc; argc < end; argc++) {
                                                                                                  argv[count] = tokens[argc];
                                                                                                  count = count + 1;
                                                                                              }
                                                                                              newProcess.path = tokens[position];
                                                                                              newProcess.argv = argv;
                                                                                              position = i + 1;
                                                                                              commands[commandNumber] = newProcess;
                                                                                              commandNumber = commandNumber + 1;
                                                                                          }
                                                                                      }
                                                                                      
                                                                                      int main(int argc, char* argv[]) {
                                                                                      
                                                                                          char path[MAX_LINE_SIZE];
                                                                                          char line[MAX_LINE_SIZE];
                                                                                          char* cmdline[MAX_CMD_SIZE];
                                                                                          process_t cmds[MAX_CMD_SIZE];
                                                                                      
                                                                                          getcwd(path, MAX_LINE_SIZE);
                                                                                          while (1) {
                                                                                        
                                                                                              printf("mini@shell:%s$ ", path);
                                                                                              scanf("%[^\n]%*c", line);
                                                                                              
                                                                                              trim(line);
                                                                                              clean(line);
                                                                                              tokenize(line, cmdline);
                                                                                              
                                                                                              parse_cmd(cmdline, cmds);
                                                                                              toString(cmds);
                                                                                              
                                                                                              break;.
                                                                                          }
                                                                                          return -1;
                                                                                      }
                                                                                      

                                                                                      Input: ls -l ; grep ^a

                                                                                      Why the array contain only the value of argv of the last iteration ?

                                                                                      Output :

                                                                                      path : ls => argv = {grep, ^a, (null)} path : grep => argv = {grep, ^a, (null)}

                                                                                      ANSWER

                                                                                      Answered 2021-Nov-05 at 11:12

                                                                                      You're trying to use the block-local array argv, which is recreated for every command and, what's worse, doesn't even exist any longer after parse_cmd has returned. An array object with sufficient lifetime has to be used; you can do this by changing

                                                                                              char* argv[MAX_CMD_SIZE] = {NULL};
                                                                                      

                                                                                      to

                                                                                              char **argv = calloc(end-position+1, sizeof *argv);
                                                                                      

                                                                                      Note that you'd have to free this object when no longer needed.

                                                                                      Also note that you forgot to return commandNumber; from parse_cmd; without that, you have no way of knowing how many commands were found.

                                                                                      Source https://stackoverflow.com/questions/69844231

                                                                                      QUESTION

                                                                                      How to detect if Python is running in Git Bash terminal, or Windows cmd?
                                                                                      Asked 2021-Oct-17 at 16:37

                                                                                      I'd like to give my Python scripts the ability to detect whether it was executed in a Git Bash terminal, or the Windows cmd command line interface. For example, I'm trying to write a function to clear the terminal (regardless of which terminal it is), e.g. echoes the clear command if in Git Bash, or cls if in cmd.

                                                                                      I've tried using sys.platform to detect this, but it returns win32 regardless of which type of terminal it was ran in.

                                                                                      ANSWER

                                                                                      Answered 2021-Oct-17 at 05:23

                                                                                      I don't believe what you're asking for is possible, but there are several answers here that show all the detections you can do to use the correct type of clear. Usually, it's just best to either make your own window or not clear the screen, sadly.

                                                                                      Source https://stackoverflow.com/questions/69601508

                                                                                      QUESTION

                                                                                      Connecting to MySQL server in a script returns error, but it works fine in a terminal
                                                                                      Asked 2021-Oct-12 at 15:28

                                                                                      I'm trying to write a bash script which will install and set up a MySQL server automatically. The problem is that when my script executes the following command:

                                                                                      mysql --socket=/mysql/socket -u root -p"$pass"
                                                                                      

                                                                                      I get the following error:

                                                                                      mysql: [Warning] Using a password on the command line interface can be insecure.
                                                                                      ERROR 2002 (HY000): Can't connect to local MySQL server through socket '//mysql/socket' (2)
                                                                                      

                                                                                      Yet when I run the same command in my bash terminal, it works fine:

                                                                                      $ mysql --socket=socket -u root -p'random-init-pass'
                                                                                      mysql: [Warning] Using a password on the command line interface can be insecure.
                                                                                      Welcome to the MySQL monitor.  Commands end with ; or \g.
                                                                                      Your MySQL connection id is 3
                                                                                      Server version: 5.7.18
                                                                                      
                                                                                      Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.
                                                                                      
                                                                                      Oracle is a registered trademark of Oracle Corporation and/or its
                                                                                      affiliates. Other names may be trademarks of their respective
                                                                                      owners.
                                                                                      
                                                                                      Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
                                                                                      
                                                                                      mysql> 
                                                                                      

                                                                                      Here's the set-up:

                                                                                      I have a script called sourceme.bash. I source sourceme.bash in order to set up the server. Here's what it looks like (everything in <> is unimportant):

                                                                                      mysql/sourceme.bash:

                                                                                      source //bash
                                                                                      module load 
                                                                                      
                                                                                      SQLDIR="/"
                                                                                      cd $SQLDIR
                                                                                      
                                                                                      # Kill the existing MySQL server (for testing purposes as I'm re-running this script multiple times)
                                                                                      # Do so by locating its process ID and terminating that ID, waiting until it's killed before proceeding.
                                                                                      ps -aux | grep mysql | grep -v grep
                                                                                      mysqlps=`ps -aux | grep mysql | grep -v grep | sed -e 's/ \{2,\}/ /g' | cut -f2 -d' '`
                                                                                      
                                                                                      if [[ -n $mysqlps ]]; then
                                                                                          kill $mysqlps
                                                                                          while kill -0 $mysqlps; do
                                                                                              sleep 0.5
                                                                                          done
                                                                                          echo "MySQL process successfully killed. Status $?"
                                                                                      else
                                                                                          echo "No MySQL process to kill. Status $?"
                                                                                      fi
                                                                                      rm -rf $SQLDIR/mysql
                                                                                      
                                                                                      # Set up MySQL server directory
                                                                                      mkdir -p $SQLDIR/mysql
                                                                                      pushd $SQLDIR/mysql
                                                                                      
                                                                                      # Copy setup files stored in $SQLDIR in order to install MySQL
                                                                                      # The my.cnf config file contains the string "$USER" which should be replaced with a Unix username.
                                                                                      cat $SQLDIR/setup_files/my.cnf | awk -v user=`whoami` '{ sub(/\$USER/, user); print }' > my.cnf
                                                                                      cp -t . $SQLDIR/setup_files/loadmodules.bash $SQLDIR/setup_files/mysql_*
                                                                                      chmod +x mysql_*
                                                                                      
                                                                                      # Load modules necessary to run the server
                                                                                      source loadmodules.bash
                                                                                      
                                                                                      # Initialise MySQL server, kill the script if this step fails.
                                                                                      # NB thanks to Raman Sailopal for helping me with this bit: https://stackoverflow.com/questions/69406526/start-a-mysql-server-pipe-the-output-to-a-file
                                                                                      ./mysql_init.sh 2>&1 | tee mysql_init.log
                                                                                      init_status=${PIPESTATUS[0]} 
                                                                                      if [[ $init_status -ne 0 ]]; then
                                                                                          echo "Init script failed - kill script"
                                                                                          return 1
                                                                                      fi
                                                                                      
                                                                                      # Grab the setup password from the log produced by mysql_init.sh. Copy into variable.
                                                                                      line=`tail -n1 mysql_init.log`
                                                                                      pass="${line##* }"
                                                                                      
                                                                                      # Launch MySQL server now that it's been initialised
                                                                                      ./mysql_start.sh
                                                                                      
                                                                                      # Create a .my.cnf config file in the user's home area, set to user-access only
                                                                                      user=`whoami`
                                                                                      cat << EOT > ~/.my.cnf
                                                                                      [mysqld]
                                                                                      
                                                                                      user=$user
                                                                                      password=$pass
                                                                                      socket=$SQLDIR/mysql/socket
                                                                                      EOT
                                                                                      
                                                                                      chmod 700 ~/.my.cnf
                                                                                      
                                                                                      # Fire up the MySQL server command line
                                                                                      # THIS IS THE BIT THAT DOESN'T WORK
                                                                                      mysql --socket=$SQLDIR/mysql/socket -u root -p"$pass"
                                                                                      

                                                                                      If I comment out the last line and copy the exact same thing into my terminal, it will start the MySQL server without complaint. I've also tried using the -e option to feed a command into the CLI and then quit, but that doesn't work either.

                                                                                      For completeness, here are the setup files that will be in the location $SQLDIR/mysql - which the script runs in order to start the MySQL server.

                                                                                      mysql/my.cnf:

                                                                                      [mysqld]
                                                                                       
                                                                                      user=lou-unix-username
                                                                                      socket=socket
                                                                                      

                                                                                      mysql/mysql_init.sh:

                                                                                      #! /bin/sh
                                                                                        
                                                                                      export MYSQL_HOME=$PWD
                                                                                        
                                                                                      # Change lc-messages-dir if running on RHE6 host
                                                                                      
                                                                                      mysqld \
                                                                                      --defaults-file=$MYSQL_HOME/my.cnf \
                                                                                      --lc-messages-dir="//mysql/5.7.18/rhe7-x86_64/share/english/" \
                                                                                      --datadir=$MYSQL_HOME/data \
                                                                                      --basedir=$MYSQL_HOME \
                                                                                      --pid-file=$MYSQL_HOME/mysql.pid \
                                                                                      --socket=$MYSQL_HOME/socket \
                                                                                      --port=3307 \
                                                                                      --initialize
                                                                                      

                                                                                      mysql/mysql_start.sh:

                                                                                      #! /bin/sh
                                                                                      echo $DATADIR
                                                                                      export MYSQL_HOME=$PWD
                                                                                        
                                                                                      mysqld \
                                                                                      --defaults-file=$MYSQL_HOME/my.cnf \
                                                                                      --log-error \
                                                                                      --lc-messages-dir="//mysql/5.7.18/rhe7-x86_64/share/english/" \
                                                                                      --datadir=$MYSQL_HOME/data \
                                                                                      --basedir=$MYSQL_HOME \
                                                                                      --pid-file=$MYSQL_HOME/mysql.pid \
                                                                                      --socket=$MYSQL_HOME/socket \
                                                                                      --port=3307 &
                                                                                      

                                                                                      ~/.my.cnf:

                                                                                      [mysqld]
                                                                                      
                                                                                      user=lou-unix-username
                                                                                      password=random-init-password
                                                                                      socket=//mysql/socket
                                                                                      

                                                                                      Is anyone able to suggest why I can launch the CLI on the terminal but not in a script? I know that I need to reset the randomly initialised password after starting up the MySQL CLI, but it won't even let me do that using the script. What could I be doing wrong?

                                                                                      ANSWER

                                                                                      Answered 2021-Oct-12 at 15:28

                                                                                      Well, I'm not entirely sure what was wrong, but I think it came down to one process not finishing before another process started. I inserted a sleep 5 in the script - just before the last line where I'm trying to connect to the server, and that worked. I also wrapped the line in a while loop, giving it up to 5 attempts to connect to the server, and if it fails, it will wait a further 5 seconds. Currently this seems to work fairly reliably and I am able to connect to the MySQL server.

                                                                                      So either way the problem appears to be solved.

                                                                                      Source https://stackoverflow.com/questions/69538440

                                                                                      QUESTION

                                                                                      Python 3 + Click: CLI arguments get butchered when calling one command from another
                                                                                      Asked 2021-Sep-10 at 16:18

                                                                                      I am using Python 3.9 and Click to build a small command line interface utility, but I am getting strange errors, specifically when I attempt to call one function decorated as a @click.command() from another function that is also decorated the same way.

                                                                                      I have distilled my program down to the bare minimum to explain what I mean.

                                                                                      This is my program

                                                                                      import click
                                                                                      
                                                                                      @click.group()
                                                                                      def cli():
                                                                                          pass
                                                                                      
                                                                                      @click.command()
                                                                                      @click.argument('id')
                                                                                      def outer(id):
                                                                                          print('outer id',id,type(id))
                                                                                          inner(id)  # run inner() from within outer(), pass argument unchanged
                                                                                      
                                                                                      @click.command()       # *
                                                                                      @click.argument('id')  # *
                                                                                      def inner(id):
                                                                                          print('inner id',id,type(id))
                                                                                      
                                                                                      cli.add_command(outer)
                                                                                      cli.add_command(inner)  # *
                                                                                      
                                                                                      if __name__ == '__main__':
                                                                                          cli()
                                                                                      

                                                                                      This is the CLI result when I run my script using both the inner and outer commands:

                                                                                      % python3 test.py inner 123
                                                                                      inner id 123 
                                                                                      % python3 test.py outer 123
                                                                                      outer id 123 
                                                                                      Usage: test.py [OPTIONS] ID
                                                                                      Try 'test.py --help' for help.
                                                                                      
                                                                                      Error: Got unexpected extra arguments (2 3)
                                                                                      %
                                                                                      

                                                                                      Interestingly, it works when I use a single character argument:

                                                                                      % python3 test.py outer 1
                                                                                      outer id 1 
                                                                                      inner id 1 
                                                                                      %
                                                                                      

                                                                                      If I comment out the three lines marked with # *, running the outer command behaves as expected, passing on the id argument to inner() without changes or issues, no matter the length of the argument:

                                                                                      % python3 test.py outer 123
                                                                                      outer id 123 
                                                                                      inner id 123 
                                                                                      %
                                                                                      

                                                                                      Clearly, the decorators are somehow messing with the arguments. Can anybody explain why this is, and how I can achieve the desired behavior of passing on the arguments unchanged? Maybe I am missing something super obvious?

                                                                                      Thanks in advance!

                                                                                      ANSWER

                                                                                      Answered 2021-Sep-10 at 16:18

                                                                                      Use the context operations to invoke other commands

                                                                                      import click
                                                                                      
                                                                                      @click.group()
                                                                                      def cli():
                                                                                          pass
                                                                                      
                                                                                      @click.command()
                                                                                      @click.argument('id')
                                                                                      @click.pass_context
                                                                                      def outer(ctx, id):
                                                                                          print('outer id',id,type(id))
                                                                                          ctx.forward(inner)  # run inner(), pass argument unchanged
                                                                                          ctx.invoke(inner, id=id+1) # run inner(), pass modified argument
                                                                                      
                                                                                      @click.command()       # *
                                                                                      @click.argument('id')  # *
                                                                                      def inner(id):
                                                                                          print('inner id',id,type(id))
                                                                                      
                                                                                      cli.add_command(outer)
                                                                                      cli.add_command(inner)  # *
                                                                                      
                                                                                      if __name__ == '__main__':
                                                                                          cli()
                                                                                      

                                                                                      Source https://stackoverflow.com/questions/69134896

                                                                                      Community Discussions, Code Snippets contain sources that include Stack Exchange Network

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