develop branch:
master branch:
GitElephant is an abstraction layer to manage your git repositories with php
It's not stable yet...I created a small todo list for the things that I would like to implement. If you want give a hand you are more than welcome!
Watch a simple live example of what you can do with GitElephant, Symfony2 and a git repository...
Download the demo bundle code used in the live example
GitElephant mostly rely on the git binary to retrieve information about the repository, read the output and create an OOP layer to interact with
Some parts are (or will be) implemented by reading directly inside the .git folder
The api is completely transparent to the end user. You don't have to worry about which method is used.
Here you can find the complete reference for master, and for any tags.
- php >= 5.3.0
- *nix system with git installed
I work on linux, but the lib should work well with every unix system, as far as a git binary is available. I don't have a windows installation to test...if someone want to help...
composer
To install GitElephant with composer you simply need to create a composer.json in your project root and add:
{
"require": {
"cypresslab/gitelephant": "0.9.*"
}
}Then run
$ curl -s https://getcomposer.org/installer | php
$ composer installYou have now GitElephant installed in vendor/cypresslab/gitelephant
And an handy autoload file to include in you project in vendor/autoload.php
pear
I will remove pear support soon. Please switch to composer! Add the cypresslab channel
$ pear channel-discover pear.cypresslab.netAnd install the package. By now GitElephant is in alpha state. So remember the -alpha in the library name
$ pear install cypresslab/GitElephant-alphaOn Cypresslab pear channel homepage you can find other useful information
<?php
use GitElephant\Repository;
$repo = new Repository('/path/to/git/repository');
// or the factory method
$repo = Repository::open('/path/to/git/repository');the Repository class is the main class where you can find every method you need...
Read repository
<?php
// get the current status
$repo->getStatusOutput(); // returns an array of lines of the status message
// branches
$repo->getBranches(); // return an array of Branch objects
$repo->getMainBranch(); // return the Branch instance of the current checked out branch
$repo->getBranch('master'); // return a Branch instance by its name
$develop = Branch::checkout($repo, 'develop');
$develop = Branch::checkout($repo, 'develop', true); // create and checkout
// tags
$repo->getTags(); // array of Tag instances
$repo->getTag('v1.0'); // a Tag instance by name
Tag::pick($repo, 'v1.0'); // a Tag instance by name
// last tag by date
$repo->getLastTag();
// commit
$repo->getCommit(); // get a Commit instance of the current HEAD
$repo->getCommit('v1.0'); // get a Commit instance for a tag
$repo->getCommit('1ac370d'); // sha (follow [git standards](http://book.git-scm.com/4_git_treeishes.html) to format the sha)
// or directly create a commit object
$commit = new Commit($repo, '1ac370d');
$commit = new Commit($repo, '1ac370d'); // head commit
// count commits
$repo->countCommits('1ac370d'); // number of commits to arrive at 1ac370d
// commit is countable, so, with a commit object, you can do
$commit->count();
// as well as
count($commit);
// remotes (thanks to @davidneimeyer)
$repo->getRemote('origin'); // a Remote object
$repo->getRemotes(); // array of Remote objects
// Log contains a collection of commit objects
// syntax: getLog(<tree-ish>, path = null, limit = 15, offset = null)
$log = $repo->getLog();
$log = $repo->getLog('master', null, 5);
$log = $repo->getLog('v0.1', null, 5, 10);
// or directly create a log object
$log = new Log($repo);
$log = new Log($repo, 'v0.1', null, 5, 10);
// countable
$log->count();
count($log);
// iterable
foreach ($log as $commit) {
echo $commit->getMessage();
}Manage repository
You could also use GitElephant to manage your git repositories via PHP.
Your web server user (like www-data) needs to have access to the folder of the git repository
<?php
$repo->init(); // init
$repo->cloneFrom("git://github.com/matteosister/GitElephant.git"); // clone
// stage changes
$repo->stage('file1.php');
$repo->stage(); // stage all
// commit
$repo->commit('my first commit');
$repo->commit('my first commit', true); // commit and stage every pending changes in the working tree
// remotes
$repo->addRemote('awesome', 'git://github.com/matteosister/GitElephant.git');
// checkout
$repo->checkout($this->getCommit('v1.0')); // checkout a tag
$repo->checkout('master'); // checkout master
// manage branches
$repo->createBranch('develop'); // create a develop branch from current checked out branch
$repo->createBranch('develop', 'master'); // create a develop branch from master
$repo->deleteBranch('develop'); // delete the develop branch
$repo->checkoutAllRemoteBranches('origin'); // checkout all the branches from the remote repository
// manage tags
// create a tag named v1.0 from master with the given tag message
$repo->createTag('v1.0', 'master', 'my first release!');
// create a tag named v1.0 from the current checked out branch with the given tag message
$repo->createTag('v1.0', null, 'my first release!');
// create a tag from a Commit object
$repo->createTag($repo->getCommit());new in alpha4 If you build a GitElephant\Status\Status class, you will get a nice api for getting the actual state of the working tree and staging area.
$status = $repo->getStatus();
$status = GitElephant\Status\Status::get($repo); // it's the same...
$status->all(); // A PhpCollection of StatusFile objects
$status->untracked();
$status->modified();
$status->added();
$status->deleted();
$status->renamed();
$status->copied();all this methods returns a PhpCollection of StatusFile objects
a StatusFile instance has all the information about the tree node changes. File names (and new file names for renamed objects), index and working tree status, and also a "git style" description like: added to index or deleted in work tree
A git repository is a tree structure versioned in time. So if you need to represent a repository in a, let's say, web browser, you will need a tree representation of the repository, at a given point in history.
Tree class
<?php
$tree = $repo->getTree(); // retrieve the actual *HEAD* tree
$tree = $repo->getTree($repo->getCommit('1ac370d')); // retrieve a tree for a given commit
$tree = $repo->getTree('master', 'lib/vendor'); // retrieve a tree for a given path
// generate a tree
$tree = new Tree($repo);The Tree class implements ArrayAccess, Countable and Iterator interfaces.
You can use it as an array of git objects.
<?php
foreach ($tree as $treeObject) {
echo $treeObject;
}A Object instance is a php representation of a node in a git tree
<?php
echo $treeObject; // the name of the object (folder, file or link)
$treeObject->getType(); // one class constant of Object::TYPE_BLOB, Object::TYPE_TREE and Object::TYPE_LINK
$treeObject->getSha();
$treeObject->getSize();
$treeObject->getName();
$treeObject->getSize();
$treeObject->getPath();You can also pass a tree object to the repository to get its subtree
<?php
$subtree = $repo->getTree('master', $treeObject);If you want to check a Diff between two commits the Diff class comes in
<?php
// get the diff between the given commit and it parent
$diff = $repo->getDiff($repo->getCommit());
// get the diff between two commits
$diff = $repo->getDiff($repo->getCommit('1ac370d'), $repo->getCommit('8fb7281'));
// same as before for a given path
$diff = $repo->getDiff($repo->getCommit('1ac370d'), $repo->getCommit('8fb7281'), 'lib/vendor');
// or even pass a Object
$diff = $repo->getDiff($repo->getCommit('1ac370d'), $repo->getCommit('8fb7281'), $treeObject);
// alternatively you could directly use the sha of the commit
$diff = $repo->getDiff('1ac370d', '8fb7281');
// manually generate a Diff object
$diff = Diff::create($repo); // defaults to the last commit
// or as explained before
$diff = Diff::create($repo, '1ac370d', '8fb7281');The Diff class implements ArrayAccess, Countable and Iterator interfaces
You can iterate over DiffObject
<?php
foreach ($diff as $diffObject) {
// mode is a constant of the DiffObject class
// DiffObject::MODE_INDEX an index change
// DiffObject::MODE_MODE a mode change
// DiffObject::MODE_NEW_FILE a new file change
// DiffObject::MODE_DELETED_FILE a deleted file change
echo $diffObject->getMode();
}A DiffObject is a class that implements ArrayAccess, Countable and Iterator interfaces. It represent a file, folder or submodule changed in the Diff.
Every DiffObject can have multiple chunks of changes. For example:
added 3 lines at line 20
deleted 4 lines at line 560
You can iterate over DiffObject to get DiffChunks. DiffChunks are the last steps of the Diff process, they are a collection of DiffChunkLine Objects
<?php
foreach ($diffObject as $diffChunk) {
if (count($diffChunk) > 0) {
echo "change detected from line ".$diffChunk->getDestStartLine()." to ".$diffChunk->getDestEndLine();
foreach ($diffChunk as $diffChunkLine) {
echo $diffChunkLine; // output the line content
}
}
}The library is fully tested with PHPUnit.
Go to the base library folder and install the dev dependencies with composer, and then run the phpunitt test suite
$ composer --dev install
$ ./vendor/bin/phpunit # phpunit test suiteIf you want to run the test suite you should have all the dependencies loaded.
There is a GitElephantBundle to use this library inside a Symfony2 project.
for tests
- GitElephant follows the Symfony2 Coding Standard
- I'm using gitflow
You are my new hero!
Just remember:
- Symfony2 coding standard
- test everything you develop with phpunit
- if you don't use gitflow, just remember to branch from "develop" and send your PR there. Please do not send pull requests on the master branch.
Many thanks to Linus and all those who have worked/contributed in any way to git. Because it's awesome!!! I can't imagine being a developer without it.