<commit_before>libgit2 - the Git linkable library
==================================

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[![AppVeyor Build Status](https://ci.appveyor.com/api/projects/status/gnjsdi9r48cfoveg/branch/master?svg=true)](https://ci.appveyor.com/project/nulltoken/libgit2/branch/master)
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`libgit2` is a portable, pure C implementation of the Git core methods
provided as a re-entrant linkable library with a solid API, allowing you to
write native speed custom Git applications in any language with bindings.

`libgit2` is licensed under a **very permissive license** (GPLv2 with a special
Linking Exception).  This basically means that you can link it (unmodified)
with any kind of software without having to release its source code.
Additionally, the example code has been released to the public domain (see the
[separate license](examples/COPYING) for more information).

* Website: [libgit2.github.com](http://libgit2.github.com)
* StackOverflow Tag: [libgit2](http://stackoverflow.com/questions/tagged/libgit2)
* Issues: [GitHub Issues](https://github.com/libgit2/libgit2/issues) (Right here!)
* API documentation: <http://libgit2.github.com/libgit2>
* IRC: [#libgit2](irc://irc.freenode.net/libgit2) on irc.freenode.net.
* Mailing list: The libgit2 mailing list was
    traditionally hosted in Librelist but has been deprecated. We encourage you to
    [use StackOverflow](http://stackoverflow.com/questions/tagged/libgit2) instead for any questions regarding
    the library, or [open an issue](https://github.com/libgit2/libgit2/issues)
    on GitHub for bug reports.  The mailing list archives are still available at
    <http://librelist.com/browser/libgit2/>.


What It Can Do
==============

`libgit2` is already very usable and is being used in production for many
applications including the GitHub.com site, in Plastic SCM and also powering
Microsoft's Visual Studio tools for Git.  The library provides:

* SHA conversions, formatting and shortening
* abstracted ODB backend system
* commit, tag, tree and blob parsing, editing, and write-back
* tree traversal
* revision walking
* index file (staging area) manipulation
* reference management (including packed references)
* config file management
* high level repository management
* thread safety and reentrancy
* descriptive and detailed error messages
* ...and more (over 175 different API calls)

Optional dependencies
=====================

While the library provides git functionality without the need for
dependencies, it can make use of a few libraries to add to it:

- pthreads (non-Windows) to enable threadsafe access as well as multi-threaded pack generation
- OpenSSL (non-Windows) to talk over HTTPS and provide the SHA-1 functions
- LibSSH2 to enable the SSH transport
- iconv (OSX) to handle the HFS+ path encoding peculiarities

Threading
=========

See [THREADING](THREADING.md) for information

Building libgit2 - Using CMake
==============================

`libgit2` builds cleanly on most platforms without any external dependencies.
Under Unix-like systems, like Linux, \*BSD and Mac OS X, libgit2 expects `pthreads` to be available;
they should be installed by default on all systems. Under Windows, libgit2 uses the native Windows API
for threading.

The `libgit2` library is built using [CMake](<http://www.cmake.org>) (version 2.6 or newer) on all platforms.

On most systems you can build the library using the following commands
<commit_msg>Mention the init function in the README<commit_after>libgit2 - the Git linkable library
==================================

[![Travis Build Status](https://secure.travis-ci.org/libgit2/libgit2.png?branch=master)](http://travis-ci.org/libgit2/libgit2)
[![AppVeyor Build Status](https://ci.appveyor.com/api/projects/status/gnjsdi9r48cfoveg/branch/master?svg=true)](https://ci.appveyor.com/project/nulltoken/libgit2/branch/master)
[![Coverity Scan Build Status](https://scan.coverity.com/projects/639/badge.svg)](https://scan.coverity.com/projects/639)

`libgit2` is a portable, pure C implementation of the Git core methods
provided as a re-entrant linkable library with a solid API, allowing you to
write native speed custom Git applications in any language with bindings.

`libgit2` is licensed under a **very permissive license** (GPLv2 with a special
Linking Exception).  This basically means that you can link it (unmodified)
with any kind of software without having to release its source code.
Additionally, the example code has been released to the public domain (see the
[separate license](examples/COPYING) for more information).

* Website: [libgit2.github.com](http://libgit2.github.com)
* StackOverflow Tag: [libgit2](http://stackoverflow.com/questions/tagged/libgit2)
* Issues: [GitHub Issues](https://github.com/libgit2/libgit2/issues) (Right here!)
* API documentation: <http://libgit2.github.com/libgit2>
* IRC: [#libgit2](irc://irc.freenode.net/libgit2) on irc.freenode.net.
* Mailing list: The libgit2 mailing list was
    traditionally hosted in Librelist but has been deprecated. We encourage you to
    [use StackOverflow](http://stackoverflow.com/questions/tagged/libgit2) instead for any questions regarding
    the library, or [open an issue](https://github.com/libgit2/libgit2/issues)
    on GitHub for bug reports.  The mailing list archives are still available at
    <http://librelist.com/browser/libgit2/>.


What It Can Do
==============

`libgit2` is already very usable and is being used in production for many
applications including the GitHub.com site, in Plastic SCM and also powering
Microsoft's Visual Studio tools for Git.  The library provides:

* SHA conversions, formatting and shortening
* abstracted ODB backend system
* commit, tag, tree and blob parsing, editing, and write-back
* tree traversal
* revision walking
* index file (staging area) manipulation
* reference management (including packed references)
* config file management
* high level repository management
* thread safety and reentrancy
* descriptive and detailed error messages
* ...and more (over 175 different API calls)

Optional dependencies
=====================

While the library provides git functionality without the need for
dependencies, it can make use of a few libraries to add to it:

- pthreads (non-Windows) to enable threadsafe access as well as multi-threaded pack generation
- OpenSSL (non-Windows) to talk over HTTPS and provide the SHA-1 functions
- LibSSH2 to enable the SSH transport
- iconv (OSX) to handle the HFS+ path encoding peculiarities

Initialization
===============

The library needs to keep track of some global state. Call

    git_libgit2_init();

before calling any other libgit2 functions. You can call this function many times. A matching number of calls to

    git_libgit2_shutdown();

will free the resources.

Threading
=========

See [THREADING](THREADING.md) for information

Building libgit2 - Using CMake
==============================

`libgit2` builds cleanly on most platforms without any external dependencies.
Under Unix-like systems, like Linux, \*BSD and Mac OS X, libgit2 expects `pthreads` to be available;
they should be installed by default on all systems. Under Windows, libgit2 uses the native Windows API
for threading.

The `libgit2` library is built using [CMake](<http://www.cmake.org>) (version 2.6 or newer) on all platforms.

On most systems you can build the library using the following commands

{'fraction_non_alphanumeric': 0.11252292376211684, 'fraction_numerical': 0.01244432800628766, 'mean_word_length': 5.007081038552321, 'pattern_counts': {'":': 0, '<': 9, '<?xml version=': 0, '>': 9, 'https://': 14, 'lorem ipsum': 0, 'www.': 2, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '2573717', 'n_tokens_mistral': 2193, 'n_tokens_neox': 2077, 'n_words': 847}