More todo items.

[viewgit.git] / index.php

<?php
error_reporting(E_ALL);

require_once('inc/config.php');

function get_project_info($name)
{
        global $conf;

        $info = $conf['projects'][$name];
        $info['name'] = $name;
        $info['description'] = file_get_contents($info['repo'] .'/description');

        return $info;
}

/**
 * Get details of a commit: tree, parent, author/committer (name, mail, date), message
 */
function git_get_commit_info($project, $hash)
{
        $info = array();
        $info['h'] = $hash;
        $info['message_full'] = '';

        $output = run_git($project, "git rev-list --header --max-count=1 $hash");
        // tree <h>
        // parent <h>
        // author <name> "<"<mail>">" <stamp> <timezone>
        // committer
        // <empty>
        //     <message>
        $pattern = '/^(author|committer) ([^<]+) <([^>]*)> ([0-9]+) (.*)$/';
        foreach ($output as $line) {
                if (substr($line, 0, 4) === 'tree') {
                        $info['tree'] = substr($line, 5);
                }
                elseif (substr($line, 0, 6) === 'parent') {
                        $info['parent']  = substr($line, 7);
                }
                elseif (preg_match($pattern, $line, $matches) > 0) {
                        $info[$matches[1] .'_name'] = $matches[2];
                        $info[$matches[1] .'_mail'] = $matches[3];
                        $info[$matches[1] .'_stamp'] = $matches[4];
                        $info[$matches[1] .'_timezone'] = $matches[5];
                }
                elseif (substr($line, 0, 4) === '    ') {
                        $info['message_full'] .= substr($line, 4) ."\n";
                        if (!isset($info['message'])) {
                                $info['message'] = substr($line, 4, 40);
                        }
                }
        }

        return $info;
}

function git_get_heads($project)
{
        $heads = array();

        $output = run_git($project, 'git show-ref --heads');
        foreach ($output as $line) {
                $fullname = substr($line, 41);
                $name = array_pop(explode('/', $fullname));
                $heads[] = array('h' => substr($line, 0, 40), 'fullname' => "$fullname", 'name' => "$name");
        }

        return $heads;
}

function git_get_rev_list($project)
{
        return run_git($project, 'git rev-list HEAD');
}

function git_ls_tree($project, $tree)
{
        $entries = array();
        $output = run_git($project, "git ls-tree $tree");
        // 100644 blob 493b7fc4296d64af45dac64bceac2d9a96c958c1    .gitignore
        // 040000 tree 715c78b1011dc58106da2a1af2fe0aa4c829542f    doc
        foreach ($output as $line) {
                $parts = preg_split('/\s+/', $line, 4);
                $entries[] = array('name' => $parts[3], 'mode' => $parts[0], 'type' => $parts[1], 'hash' => $parts[2]);
        }

        return $entries;
}

function makelink($dict)
{
        $params = array();
        foreach ($dict as $k => $v) {
                $params[] = rawurlencode($k) .'='. str_replace('%2F', '/', rawurlencode($v));
        }
        if (count($params) > 0) {
                return '?'. htmlentities(join('&', $params));
        }
        return '';
}

/**
 * Executes a git command in the project repo.
 * @return array of output lines
 */
function run_git($project, $command)
{
        global $conf;

        $output = array();
        $cmd = "GIT_DIR=". $conf['projects'][$project]['repo'] ." $command";
        exec($cmd, &$output);
        return $output;
}

$action = 'index';
$template = '';
$page['title'] = 'ViewGit';

if (isset($_REQUEST['a'])) {
        $action = strtolower($_REQUEST['a']);
}

if ($action === 'index') {
        $template = 'index';

        foreach (array_keys($conf['projects']) as $p) {
                $page['projects'][] = get_project_info($p);
        }
}
elseif ($action === 'commit') {
        $template = 'commit';
        $page['project'] = strtolower($_REQUEST['p']); // TODO validate
        $page['commit_id'] = strtolower($_REQUEST['h']); // TODO validate

        $info = git_get_commit_info($page['project'], $page['commit_id']);

        $page['author_name'] = $info['author_name'];
        $page['author_mail'] = $info['author_mail'];
        $page['author_datetime'] = strftime($conf['datetime'], $info['author_stamp']);
        $page['committer_name'] = $info['committer_name'];
        $page['committer_mail'] = $info['committer_mail'];
        $page['committer_datetime'] = strftime($conf['datetime'], $info['committer_stamp']);
        $page['tree'] = $info['tree'];
        $page['parent'] = $info['parent'];
        $page['message'] = $info['message'];
        $page['message_full'] = $info['message_full'];

}
elseif ($action === 'summary') {
        $template = 'summary';
        $page['project'] = strtolower($_REQUEST['p']);
        // TODO: validate project
        
        $revs = git_get_rev_list($page['project']);
        foreach ($revs as $rev) {
                $info = git_get_commit_info($page['project'], $rev);
                $page['shortlog'][] = array(
                        'author' => $info['author_name'],
                        'date' => strftime($conf['datetime'], $info['author_stamp']),
                        'message' => $info['message'],
                        'commit_id' => $rev,
                );
        }

        $heads = git_get_heads($page['project']);
        $page['heads'] = array();
        foreach ($heads as $h) {
                $info = git_get_commit_info($page['project'], $h['h']);
                $page['heads'][] = array(
                        'date' => strftime($conf['datetime'], $info['author_stamp']),
                        'h' => $h['h'],
                        'fullname' => $h['fullname'],
                        'name' => $h['name'],
                );
        }
}
elseif ($action === 'tree') {
        $template = 'tree';
        $page['project'] = strtolower($_REQUEST['p']); // TODO validate
        $page['tree'] = $_REQUEST['h']; // TODO validate

        $page['entries'] = git_ls_tree($page['project'], $page['tree']);
}
else {
        die('Invalid action');
}

require 'templates/header.php';
require "templates/$template.php";
require 'templates/footer.php';