ShellOut | Easily run shell commands from a Swift script | Command Line Interface library
kandi X-RAY | ShellOut Summary
kandi X-RAY | ShellOut Summary
Welcome to ShellOut, a simple package that enables you to easily “shell out” from a Swift script or command line tool. Even though you can accomplish most of the tasks you need to do in native Swift code, sometimes you need to invoke the power of the command line from a script or tool - and this is exactly what ShellOut makes so simple.
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of ShellOut
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Trending Discussions on ShellOut
QUESTION
so my code looks like this , i have a function defined as the following :
...ANSWER
Answered 2021-Oct-14 at 22:16For purely academic purposes, I'm posting this function, as I had to do something similar a while back:
QUESTION
this is my recipe.rb
...ANSWER
Answered 2021-Sep-04 at 10:01You don't need the echo command to get the output. you can directly run the command through mixlib/shellout
and get then get the command output from stdout
.
QUESTION
I'm running this script in AWS Opsworks. It worked before, but now it fails with the error message below the script. The script creates the linux-2 server instance and then immediately runs the script. Some suggest setting pgpcheck=0, but I don't exactly know where to add this. I don't know if that's the solution either.
...ANSWER
Answered 2021-Aug-21 at 15:12Going by the results of search for this issue, it could be temporary. However for the time being you could change disable the GPG check for the repository in /etc/yum.repos.d/pgdg-redhat-all.repo
.
The error indicates GPG verification issue for [pgdg-common]
repo, but this could be for other repos in the pgdg-redhat-all.repo
file. This is usually enabled with gpgcheck=1
.
Changing this to gpgcheck=0
for all occurrences using something like Chef::Util::FileEdit
should work in the meantime.
QUESTION
Our company is updating to Chef 14 (14.14.25) from Chef 12 (12.19.36). I have a recipe with a library of helper functions, with this code surrounding it:
...ANSWER
Answered 2021-Jun-20 at 02:38I did a bit more research, and based on some hints, I added an additional line:
QUESTION
Recently we upgraded chef-client from 12.8.1 to 16.1.16.. After upgrading chef-client from 12.8.1 to 16.1.16, getting below error.. To test,i reverted chef-client back to 12.8.1 and deployment works fine with 12.8.1. Are there any code-refactoring i'm missing that need to be done to upgrade to chef 16.1.16 version.
...ANSWER
Answered 2020-Sep-11 at 10:28The issue is occurring because a new property was added in Chef 14.2 to the execute resource.
default_env
Ruby Type: true, false | Default Value: false
When true this enables ENV magic to add path_sanity to the PATH and force the locale to English+UTF-8 for parsing output
New in Chef Client 14.2
This is why /sbin/pvcreate
was run (though it failed), but not pvdisplay
.
There is further explanation for this on client.rb configuration.
enforce_path_sanity
Turn on path sanity in resources that shellout so that expected paths like /sbin or /bin are added to the PATH. Disabled by default.
You could fix it in different ways:
Use absolute path for commands in your execute/bash resource. Example:
QUESTION
I have written a recipe to create multiple logical volumes as part of setup for installing an application. I have a hash in the recipe that I've created by reading a JSON file which has all the metadata for the drives.
The recipe loops over this hash and is supposed to first create a logical volume and then execute a tune2fs command, immediately.
Now assume we're in the first iteration of the loop. It creates the logical volume just fine, for the first entry in the hash (lv_u01) but then when it notifies the execute block (in side the same loop, immediately), it somehow interpolates the key/values from the last entry in the hash (lv_u03). I have tried multiple times and it keeps doing the same thing. I searched and couldn't find any relevant information on why it's doing this. Is it something do with the timers? I want to run the tune2fs command right after it creates the logical volume, as later in the loop I mount the volume, and this steps needs to happen before the other steps run. Which is why I used immediately.
Can someone please help me understand what am I doing wrong here.
Here's the error that I see:
...ANSWER
Answered 2020-Oct-28 at 13:09You shouldn't be using resources with the same name, that actually do different things. You have 3 resources in the resource collection eventually with the same name: execute 'Run tune2fs'
, but every one of them doing its own thing, because the command "tune2fs -i 0 -c 0 /dev/#{val_hash['vg_name']}/#{lv_name}"
are different.
Chef just does not know which resource of 3, you are notifying with
notifies :run, "execute[Run tune2fs]", :immediately
Use different names for your execute resources:
QUESTION
While running curl command using chef getting error. Block which I am trying to execute:
...ANSWER
Answered 2020-Oct-21 at 07:52Due space issue i was facing this. Now i resolved it
QUESTION
Recently we upgraded chef-client from 12.8.1 to 16.1.16.. After upgrading chef-client from 12.8.1 to 16.1.16, getting below error.. To test,i reverted chef-client back to 12.8.1 and deployment works fine with 12.8.1. Are there any code-refactoring i'm missing that need to be done to upgrade to chef 16.1.16 version.
...ANSWER
Answered 2020-Sep-16 at 14:40Not sure what's the correlation between the version and this behavior. But seems the fstype cur_type
in mount
resource is getting nil
value. You might want to check on why cur_type
is not getting set to the value you expect.
Couple of clues that indicate that the issue is with how the cur_type
variable is set:
Note that in the mount command:
"mount", "-t", "-o",
there should be a filesytem type before-o
(options).In the
Compiled Resource:
, we can seefstype nil
where you are passing thecur_type
variable.
Please check how the cur_type
variable is being set. Seems there is a change that is causing to not be set in new version of Chef. You could update your question with that details too.
QUESTION
I have a recipe that iterates a hash containing SQL scripts in an each
method and -- in case the script changed from the previous run -- the cookbook_file
resource notifies the execute
resource to run.
The issue is that it seems it always runs the execute
using the last element of the hash.
Following the attributes file
...ANSWER
Answered 2020-Aug-04 at 22:21You are creating 4 nearly identical resources all named execute[Create_scripts]
and when the notification fires from the first cookbook_file
resource being updated it finds the last one of them to be notified and runs against test4
(no matter which cookbook_file resource updates).
The fix is to use string interpolation to change the name of the execute resources to be unique and to notify based on that unique name:
QUESTION
I need to run commands that require dynamic output in my CLI made in Swift. I've tried things like ShellOut and other suggestions on Stack Overflow, but they print the output once the command is done, not while it is going.
What I'm hoping for is something like system("vi README.md")
from C++, where it will run the command and print the outputs as it goes.
Without it, vi
prints Vim: Warning: Output is not to a terminal
then leaves a black screen and there is no way to exit the command.
ANSWER
Answered 2020-Jun-14 at 22:50Turns out, you can use the system()
function for C++ in Swift!
First, I created a new target in my package (to get past language mixing errors):
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