compress | Optimized Go Compression Packages | Compression library

 by   klauspost Go Version: v1.16.6 License: Non-SPDX

kandi X-RAY | compress Summary

kandi X-RAY | compress Summary

compress is a Go library typically used in Utilities, Compression applications. compress has no bugs, it has no vulnerabilities and it has medium support. However compress has a Non-SPDX License. You can download it from GitHub.

This package provides various compression algorithms.
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            kandi-support Support

              compress has a medium active ecosystem.
              It has 3755 star(s) with 267 fork(s). There are 67 watchers for this library.
              There were 3 major release(s) in the last 12 months.
              There are 1 open issues and 203 have been closed. On average issues are closed in 14 days. There are 3 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of compress is v1.16.6

            kandi-Quality Quality

              compress has 0 bugs and 0 code smells.

            kandi-Security Security

              compress has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              compress code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              compress has a Non-SPDX License.
              Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

            kandi-Reuse Reuse

              compress releases are available to install and integrate.
              Installation instructions are not available. Examples and code snippets are available.
              It has 49942 lines of code, 1727 functions and 161 files.
              It has high code complexity. Code complexity directly impacts maintainability of the code.

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            compress Key Features

            No Key Features are available at this moment for compress.

            compress Examples and Code Snippets

            CLI compress options
            npmdot img1Lines of Code : 1dot img1no licencesLicense : No License
            copy iconCopy
            uglifyjs file.js -c toplevel,sequences=false  
            Compress the given data .
            pythondot img2Lines of Code : 28dot img2License : Permissive (MIT License)
            copy iconCopy
            def compress_data(data_bits: str) -> str:
                """
                Compresses given data_bits using Lempel–Ziv–Welch compression algorithm
                and returns the result as a string
                """
                lexicon = {"0": "0", "1": "1"}
                result, curr_string = "", ""
                in  
            Compress a tensor .
            pythondot img3Lines of Code : 27dot img3License : Non-SPDX (Apache License 2.0)
            copy iconCopy
            def compress(condition, a, axis=None):  # pylint: disable=redefined-outer-name,missing-function-docstring
              condition = asarray(condition, dtype=bool)
              a = asarray(a)
            
              if condition.ndim != 1:
                raise ValueError('condition must be a 1-d array.')
              
            Compress the given string .
            javadot img4Lines of Code : 18dot img4no licencesLicense : No License
            copy iconCopy
            public static String compress(String str) {
            		int finalLength = countCompression(str);
            		if (finalLength >= str.length()) return str;
            		
            		StringBuffer compressed = new StringBuffer(finalLength); // initialize capacity
            		int countConsecutive = 0;
              

            Community Discussions

            QUESTION

            Fixing git HTTPS Error: "bad key length" on macOS 12
            Asked 2022-Mar-29 at 17:34

            I am using a company-hosted (Bitbucket) git repository that is accessible via HTTPS. Accessing it (e.g. git fetch) worked using macOS 11 (Big Sur), but broke after an update to macOS 12 Monterey. *

            After the update of macOS to 12 Monterey my previous git setup broke. Now I am getting the following error message:

            ...

            ANSWER

            Answered 2021-Nov-02 at 07:12

            Unfortunately I can't provide you with a fix, but I've found a workaround for that exact same problem (company-hosted bitbucket resulting in exact same error). I also don't know exactly why the problem occurs, but my best guess would be that the libressl library shipped with Monterey has some sort of problem with specific (?TLSv1.3) certs. This guess is because the brew-installed openssl v1.1 and v3 don't throw that error when executed with /opt/homebrew/opt/openssl/bin/openssl s_client -connect ...:443

            To get around that error, I've built git from source built against different openssl and curl implementations:

            1. install autoconf, openssl and curl with brew (I think you can select the openssl lib you like, i.e. v1.1 or v3, I chose v3)
            2. clone git version you like, i.e. git clone --branch v2.33.1 https://github.com/git/git.git
            3. cd git
            4. make configure (that is why autoconf is needed)
            5. execute LDFLAGS="-L/opt/homebrew/opt/openssl@3/lib -L/opt/homebrew/opt/curl/lib" CPPFLAGS="-I/opt/homebrew/opt/openssl@3/include -I/opt/homebrew/opt/curl/include" ./configure --prefix=$HOME/git (here LDFLAGS and CPPFLAGS include the libs git will be built against, the right flags are emitted by brew on install success of curl and openssl; --prefix is the install directory of git, defaults to /usr/local but can be changed)
            6. make install
            7. ensure to add the install directory's subfolder /bin to the front of your $PATH to "override" the default git shipped by Monterey
            8. restart terminal
            9. check that git version shows the new version

            This should help for now, but as I already said, this is only a workaround, hopefully Apple fixes their libressl fork ASAP.

            Source https://stackoverflow.com/questions/69734654

            QUESTION

            git gc: error: Could not read 0000000000000000000000000000000000000000
            Asked 2022-Mar-28 at 14:18
            git gc
            error: Could not read 0000000000000000000000000000000000000000
            Enumerating objects: 147323, done.
            Counting objects: 100% (147323/147323), done.
            Delta compression using up to 4 threads
            Compressing objects: 100% (36046/36046), done.
            Writing objects: 100% (147323/147323), done.
            Total 147323 (delta 91195), reused 147323 (delta 91195), pack-reused 0
            
            ...

            ANSWER

            Answered 2022-Mar-28 at 14:18

            This error is harmless in the sense that it does not indicate a broken repository. It is a bug that was introduced in Git 2.35 and that should be fixed in later releases.

            The worst that can happen is that git gc does not prune all objects that are referenced from reflogs. The error is triggered by an invocation of git reflog expire --all that git gc does behind the scenes.

            The trigger are empty reflog files in the .git/logs directory structure that were left behind after a branch was deleted. As a workaround you can remove these empty files. This command lets you find them and check their size:

            Source https://stackoverflow.com/questions/71364717

            QUESTION

            Vuejs Webpack Compression Plugin not compressing
            Asked 2022-Mar-28 at 12:53

            I need help debugging Webpack's Compression Plugin.

            SUMMARY OF PROBLEM

            • Goal is to enable asset compression and reduce my app's bundle size. Using the Brotli algorithm as the default, and gzip as a fallback for unsupported browsers.
            • I expected a content-encoding field within an asset's Response Headers. Instead, they're loaded without the field. I used the Chrome dev tools' network tab to confirm this. For context, see the following snippet:
            • No errors show in my browser or IDE when running locally.

            WHAT I TRIED

            • Using different implementations for the compression plugin. See below list of approaches:
              1. (With Webpack Chain API)
            ...

            ANSWER

            Answered 2021-Sep-30 at 14:59

            It's not clear which server is serving up these assets. If it's Express, looking at the screenshot with the header X-Powered-By, https://github.com/expressjs/compression/issues/71 shows that Brotli support hasn't been added to Express yet.

            There might be a way to just specify the header for content-encoding manually though.

            Source https://stackoverflow.com/questions/69288974

            QUESTION

            Why does this .c file #include itself?
            Asked 2022-Feb-18 at 07:48

            Why does this .c file #include itself?

            vsimple.c

            ...

            ANSWER

            Answered 2022-Feb-18 at 07:48

            The file includes itself so the same source code can be used to generate 4 different sets of functions for specific values of the macro USIZE.

            The #include directives are actually enclosed in an #ifndef, which limits the recursion to a single level:

            Source https://stackoverflow.com/questions/71105071

            QUESTION

            Could not resolve com.google.guava:guava:30.1-jre - Gradle project sync failed. Basic functionality will not work properly - in kotlin project
            Asked 2022-Feb-14 at 19:47

            It was a project that used to work well in the past, but after updating, the following errors appear.

            ...

            ANSWER

            Answered 2021-Sep-17 at 11:03

            Add mavenCentral() in Build Script

            Source https://stackoverflow.com/questions/69205327

            QUESTION

            How do I get mobile status for discord bot by directly modifying IDENTIFY packet?
            Asked 2022-Feb-09 at 15:05

            Apparently, discord bots can have mobile status as opposed to the desktop (online) status that one gets by default.

            After a bit of digging I found out that such a status is achieved by modifying the IDENTIFY packet in discord.gateway.DiscordWebSocket.identify modifying the value of $browser to Discord Android or Discord iOS should theoretically get us the mobile status.

            After modifying code snippets I found online which does this, I end up with this :

            ...

            ANSWER

            Answered 2022-Feb-07 at 23:03

            The following works by subclassing the relevant class, and duplicating code with the relevant changes. We also have to subclass the Client class, to overwrite the place where the gateway/websocket class is used. This results in a lot of duplicated code, however it does work, and requires neither dirty monkey-patching nor editing the library source code.

            However, it does come with many of the same problems as editing the library source code - mainly that as the library is updated, this code will become out of date (if you're using the archived and obsolete version of the library, you have bigger problems instead).

            Source https://stackoverflow.com/questions/70903401

            QUESTION

            Docker standard_init_linux.go:228: exec user process caused: no such file or directory
            Asked 2022-Feb-08 at 20:49

            Whenever I am trying to run the docker images, it is exiting in immediately.

            ...

            ANSWER

            Answered 2021-Aug-22 at 15:41

            Since you're already using Docker, I'd suggest using a multi-stage build. Using a standard docker image like golang one can build an executable asset which is guaranteed to work with other docker linux images:

            Source https://stackoverflow.com/questions/68881023

            QUESTION

            How to apply one signature test to multiple positionals
            Asked 2022-Feb-03 at 16:01

            I wrote some code in https://github.com/p6steve/raku-Physics-Measure that looks for a Measure type in each maths operation and hands off the work to non-standard methods that adjust Unit and Error aspects alongside returning the new value:

            ...

            ANSWER

            Answered 2021-Dec-30 at 03:53

            There are a few ways to approach this but what I'd probably do – and a generally useful pattern – is to use a subset to create a slightly over-inclusive multi and then redispatch the case you shouldn't have included. For the example you provided, that might look a bit like:

            Source https://stackoverflow.com/questions/70525665

            QUESTION

            .NET 6 failing at Decompress large gzip text
            Asked 2022-Feb-01 at 10:43

            I have to decompress some gzip text in .NET 6 app, however, on a string that is 20,627 characters long, it only decompresses about 1/3 of it. The code I am using code works for this string in .NET 5 or .NETCore 3.1 As well as smaller compressed strings.

            ...

            ANSWER

            Answered 2022-Feb-01 at 10:43

            Just confirmed that the article linked in the comments below the question contains a valid clue on the issue.

            Corrected code would be:

            Source https://stackoverflow.com/questions/70933327

            QUESTION

            JavaScript: V8 question: are small integers pooled?
            Asked 2022-Jan-17 at 12:37

            was looking at this V8 design doc where it has a section for Constant Pool Entries

            it says

            Constant pools are used to store heap objects and small integers that are referenced as constants in generated bytecode. and

            ... Small integers and the strong referenced oddball type’s have bytecodes to load them directly and do not go into the constant pool.

            So I am confused: are small integers pooled or not?

            My understanding is that it is not worth it pooling small integers if sizeof(int) < sizeof(int *) - because it is cheaper to just copy the actual integer instead of copying the pointer that points to the integer in the constant pool. Also variables that hold integers can be optimised to be stored directly in CPU registers and skip being allocated in memory first.

            Also, are they located on the V8 heap or the stack? My understanding had always been that smis are just be the immediate values allocated on the stack instead of being a pointer + an integer allocated on heap. Also if you take a heap snapshot using chrome devtool you cannot find smis in the heap snapshot - only heap number such as big integers or double like 3.14 are on the heap until I saw this article https://v8.dev/blog/pointer-compression#value-tagging-in-v8

            JavaScript values in V8 are represented as objects and allocated on the V8 heap, no matter if they are objects, arrays, numbers or strings. This allows us to represent any value as a pointer to an object.

            Now I am just baffled - are smis also allocated on the heap?

            ...

            ANSWER

            Answered 2022-Jan-17 at 12:37

            V8 developer here.

            are small integers pooled or not?

            They are not (at least not right now). That said, this is a small implementation detail and could be done either way: it would totally be possible to use the constant pool for Smis. I suppose the decision to build special machinery for Smis (instead of reusing the general-purpose constant pool) was made because things turned out to be more efficient that way.

            it is not worth it pooling small integers if sizeof(int) < sizeof(int *)

            The details are different (a Smi is not an int, and constant pool slots are referenced by index rather than C++ pointer), but this reasoning does go in the right direction: avoiding indirections can save time and memory.

            are smis also allocated on the heap?

            Yes, everything is allocated on the heap. The stack is only useful for temporary (and sufficiently small) things; that's largely unrelated to the type of thing.

            The "trick" of Smis is that they're not stored as separate objects: when you have an object that refers to a Smi, such as let foo = {smi: 42}, then the value 42 can be smi-encoded and stored directly inside the "foo" object (whereas if the value was 42.5, then the object would store a pointer to a separate "HeapNumber"). But since the object is on the heap, so is the Smi.

            @DanielCruz

            What I understand [...] is that constant small integers are pooled. Variable small integers are not.

            Nope. Any literal that occurs in source code is "constant". Whether you use let or const for your variables has nothing to do with this.

            Source https://stackoverflow.com/questions/70734678

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

            Vulnerabilities

            No vulnerabilities reported

            Install compress

            You can download it from GitHub.

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