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<?php
    /** IGit interface
     * 
     * @author      Jan Pecha, <janpecha@email.cz>
     */
    
    namespace Cz\Git;
    
    interface IGit
    {
        /**
         * Creates a tag.
         * @param   string
         * @throws  Cz\Git\GitException
         */
        function createTag($name);
        
        
        
        /**
         * Removes tag.
         * @param   string
         * @throws  Cz\Git\GitException
         */
        function removeTag($name);
        
        
        
        /**
         * Renames tag.
         * @param   string
         * @param   string
         * @throws  Cz\Git\GitException
         */
        function renameTag($oldName, $newName);
        
        
        
        /**
         * Returns list of tags in repo.
         * @return  string[]|NULL  NULL => no tags
         */
        function getTags();
        
        
        
        /**
         * Merges branches.
         * @param   string
         * @param   array|NULL
         * @throws  Cz\Git\GitException
         */
        function merge($branch, $options = NULL);
        
        
        
        /**
         * Creates new branch.
         * @param   string
         * @param   bool
         * @throws  Cz\Git\GitException
         */
        function createBranch($name, $checkout = FALSE);
        
        
        
        /**
         * Removes branch.
         * @param   string
         * @throws  Cz\Git\GitException
         */
        function removeBranch($name);
        
        
        
        /**
         * Gets name of current branch
         * @return  string
         * @throws  Cz\Git\GitException
         */
        function getCurrentBranchName();
        
        
        
        
        /**
         * Returns list of branches in repo.
         * @return  string[]|NULL  NULL => no branches
         */
        function getBranches();
        
        
        
        /**
         * Checkout branch.
         * @param   string
         * @throws  Cz\Git\GitException
         */
        function checkout($name);
        
        
        
        /**
         * Removes file(s).
         * @param   string|string[]
         * @throws  Cz\Git\GitException
         */
        function removeFile($file);
        
        
        
        /**
         * Adds file(s).
         * @param   string|string[]
         * @throws  Cz\Git\GitException
         */
        function addFile($file);
        
        
        
        /**
         * Renames file(s).
         * @param   string|string[]  from: array('from' => 'to', ...) || (from, to)
         * @param   string|NULL
         * @throws  Cz\Git\GitException
         */
        function renameFile($file, $to = NULL);
        
        
        
        /**
         * Commits changes
         * @param   string
         * @param   string[]  param => value
         * @throws  Cz\Git\GitException
         */
        function commit($message, $params = NULL);
        
        
        
        /**
         * Exists changes?
         * @return  bool
         */
        function isChanges();
    }
    
    
    
    class GitException extends \Exception
    {
    }