87 lines
1.9 KiB
PHP
87 lines
1.9 KiB
PHP
<?php
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class GitMarkdownUpdater implements MarkdownUpdater
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{
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public function update($repo, $path, $branch)
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{
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// Ensure git is available
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$errors = array();
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if (!$this->runCommand('git --version', $errors)) {
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return $errors;
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}
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// Check if we should do a git update or re-clone
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if (is_dir($path . '/.git')) {
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return $this->doFetch($path, $branch);
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} else {
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return $this->doClone($repo, $path, $branch);
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}
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}
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/**
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* Update existing git checkouts
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*
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* @param string $path
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* @param string $branch
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* @return array List of errors
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*/
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protected function doFetch($path, $branch) {
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$errors = array();
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$fetchCommand = sprintf(
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'cd %s && git fetch origin %s',
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escapeshellarg($path),
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escapeshellarg($branch)
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);
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$resetCommand = sprintf(
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'cd %s && git reset --hard origin/%s',
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escapeshellarg($path),
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escapeshellarg($branch)
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);
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// Run
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if($this->runCommand($fetchCommand, $errors)) {
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$this->runCommand($resetCommand, $errors);
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}
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return $errors;
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}
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/**
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* Clone a new git repo
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* @param string $repo Repo slug
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* @param string $path Destination path
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* @param string $branch Branch name
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* @return array
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*/
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protected function doClone($repo, $path, $branch) {
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$errors = array();
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$remote = "https://github.com/{$repo}.git";
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$this->runCommand(sprintf(
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"git clone --quiet %s %s --branch %s",
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escapeshellarg($remote),
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escapeshellarg($path),
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escapeshellarg($branch)
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), $errors);
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return $errors;
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}
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/**
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* Run this command
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*
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* @param string $cmd
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* @param array $errors
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* @return bool Flag if the command was successful
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*/
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protected function runCommand($cmd, &$errors = array()) {
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exec("{$cmd} 2>&1 >/dev/null", $output, $result);
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if($result) {
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$errors[] = "Error running command {$cmd}:";
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foreach($output as $error) {
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$errors[] = ' * ' . $error;
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}
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return false;
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}
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return true;
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}
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}
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