<?php
/* -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
# ***** BEGIN LICENSE BLOCK *****
# This file is part of InDefero, an open source project management application.
# Copyright (C) 2008-2011 CĂ©ondo Ltd and contributors.
#
# InDefero is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# InDefero is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#
# ***** END LICENSE BLOCK ***** */
/**
* A simple RAII helper that manages style files to format hg's log output
*/
class IDF_Scm_Mercurial_LogStyle
{
const FULL_LOG = 1;
const CHANGES = 2;
public function __construct($type)
{
$this->file = tempnam(Pluf::f('tmp_folder'), 'hg-log-style-');
if ($type == self::FULL_LOG) {
$style = 'changeset = "'
. 'changeset: {node|short}\n'
. 'branch: {branch}\n'
. 'author: {author}\n'
. 'date: {date|isodate}\n'
. 'parents: {parents}\n\n'
. '{desc}\n'
. '\0\n"'
. "\n"
. 'parent = "{node|short} "'
. "\n";
} elseif ($type == self::CHANGES) {
$style = 'changeset = "'
. 'file_mods: {file_mods}\n'
. 'file_adds: {file_adds}\n'
. 'file_dels: {file_dels}\n'
. 'file_copies: {file_copies}\n\n'
. '\0\n"'
. "\n"
. 'file_mod = "{file_mod}\0"'
. "\n"
. 'file_add = "{file_add}\0"'
. "\n"
. 'file_del = "{file_del}\0"'
. "\n"
. 'file_copy = "{source}\0{name}\0"'
. "\n";
} else {
throw new IDF_Scm_Exception('invalid type ' . $type);
}
file_put_contents($this->file, $style);
}
public function __destruct()
{
@unlink($this->file);
}
public function get()
{
return $this->file;
}
}
/**
* Main SCM class for Mercurial
*
* Note: Some commands take a --debug option, this is not lousy coding, but
* totally wanted, as hg returns additional / different data in this
* mode on which this largely depends.
*/
class IDF_Scm_Mercurial extends IDF_Scm
{
public function __construct($repo, $project=null)
{
$this->repo = $repo;
$this->project = $project;
}
public function getRepositorySize()
{
$cmd = Pluf::f('idf_exec_cmd_prefix', '').'du -sk '
.escapeshellarg($this->repo);
$out = explode(' ',
self::shell_exec('IDF_Scm_Mercurial::getRepositorySize',
$cmd),
2);
return (int) $out[0]*1024;
}
public static function factory($project)
{
$rep = sprintf(Pluf::f('mercurial_repositories'), $project->shortname);
return new IDF_Scm_Mercurial($rep, $project);
}
public function isAvailable()
{
try {
$branches = $this->getBranches();
} catch (IDF_Scm_Exception $e) {
return false;
}
return (count($branches) > 0);
}
public function findAuthor($author)
{
// We extract the email.
$match = array();
if (!preg_match('/<(.*)>/', $author, $match)) {
return null;
}
return Pluf::factory('IDF_EmailAddress')->get_user_for_email_address($match[1]);
}
public function getMainBranch()
{
return 'tip';
}
public static function getAnonymousAccessUrl($project, $commit=null)
{
return sprintf(Pluf::f('mercurial_remote_url'), $project->shortname);
}
public static function getAuthAccessUrl($project, $user, $commit=null)
{
return sprintf(Pluf::f('mercurial_remote_url'), $project->shortname);
}
public function validateRevision($rev)
{
$cmd = sprintf(Pluf::f('hg_path', 'hg').' log -R %s -r %s',
escapeshellarg($this->repo),
escapeshellarg($rev));
$cmd = Pluf::f('idf_exec_cmd_prefix', '').$cmd;
self::exec('IDF_Scm_Mercurial::validateRevision', $cmd, $out, $ret);
// FIXME: apparently a given hg revision can also be ambigious -
// handle this case here sometime
if ($ret == 0 && count($out) > 0)
return IDF_Scm::REVISION_VALID;
return IDF_Scm::REVISION_INVALID;
}
/**
* Test a given object hash.
*
* @param string Object hash.
* @param null to be svn client compatible
* @return mixed false if not valid or 'blob', 'tree', 'commit'
*/
public function testHash($hash, $dummy=null)
{
$cmd = sprintf(Pluf::f('hg_path', 'hg').' log -R %s -r %s',
escapeshellarg($this->repo),
escapeshellarg($hash));
$ret = 0;
$out = array();
$cmd = Pluf::f('idf_exec_cmd_prefix', '').$cmd;
self::exec('IDF_Scm_Mercurial::testHash', $cmd, $out, $ret);
return ($ret != 0) ? false : 'commit';
}
public function getTree($commit, $folder='/', $branch=null)
{
// now we grab the info about this commit including its tree.
$folder = ($folder == '/') ? '' : $folder;
$co = $this->getCommit($commit);
if ($folder) {
// As we are limiting to a given folder, we need to find
// the tree corresponding to this folder.
$found = false;
foreach ($this->getTreeInfo($co->tree, true, '', true) as $file) {
if ($file->type == 'tree' and $file->file == $folder) {
$found = true;
break;
}
}
if (!$found) {
throw new Exception(sprintf(__('Folder %1$s not found in commit %2$s.'), $folder, $commit));
}
}
$res = $this->getTreeInfo($commit, $recurse=true, $folder);
return $res;
}
/**
* Get the tree info.
*
* @param string Tree hash
* @param bool Do we recurse in subtrees (true)
* @return array Array of file information.
*/
public function getTreeInfo($tree, $recurse=true, $folder='', $root=false)
{
if ('commit' != $this->testHash($tree)) {
throw new Exception(sprintf(__('Not a valid tree: %s.'), $tree));
}
$cmd_tmpl = Pluf::f('hg_path', 'hg').' manifest -R %s --debug -r %s';
$cmd = sprintf($cmd_tmpl, escapeshellarg($this->repo),
escapeshellarg($tree));
$out = array();
$res = array();
$cmd = Pluf::f('idf_exec_cmd_prefix', '').$cmd;
self::exec('IDF_Scm_Mercurial::getTreeInfo', $cmd, $out);
$tmp_hack = array();
while (null !== ($line = array_pop($out))) {
list($hash, $perm, $exec, $file) = preg_split('/ |\t/', $line, 4);
$file = trim($file);
$dir = explode('/', $file, -1);
$tmp = '';
for ($i=0, $n=count($dir); $i<$n; $i++) {
if ($i > 0) {
$tmp .= '/';
}
$tmp .= $dir[$i];
if (!isset($tmp_hack["empty\t000\t\t$tmp/"])) {
$out[] = "empty\t000\t\t$tmp/";
$tmp_hack["empty\t000\t\t$tmp/"] = 1;
}
}
if (preg_match('/^(.*)\/$/', $file, $match)) {
$type = 'tree';
$file = $match[1];
} else {
$type = 'blob';
}
if (!$root and !$folder and preg_match('/^.*\/.*$/', $file)) {
continue;
}
if ($folder) {
preg_match('|^'.$folder.'[/]([^/]+)?$|', $file,$match);
if (count($match) > 1) {
$file = $match[1];
} else {
continue;
}
}
$fullpath = ($folder) ? $folder.'/'.$file : $file;
$efullpath = self::smartEncode($fullpath);
$res[] = (object) array('perm' => $perm, 'type' => $type,
'hash' => $hash, 'fullpath' => $fullpath,
'efullpath' => $efullpath, 'file' => $file);
}
return $res;
}
public function getPathInfo($totest, $commit='tip')
{
$cmd_tmpl = Pluf::f('hg_path', 'hg').' manifest -R %s --debug -r %s';
$cmd = sprintf($cmd_tmpl, escapeshellarg($this->repo),
escapeshellarg($commit));
$out = array();
$cmd = Pluf::f('idf_exec_cmd_prefix', '').$cmd;
self::exec('IDF_Scm_Mercurial::getPathInfo', $cmd, $out);
$tmp_hack = array();
while (null !== ($line = array_pop($out))) {
list($hash, $perm, $exec, $file) = preg_split('/ |\t/', $line, 4);
$file = trim($file);
$dir = explode('/', $file, -1);
$tmp = '';
for ($i=0, $n=count($dir); $i<$n; $i++) {
if ($i > 0) {
$tmp .= '/';
}
$tmp .= $dir[$i];
if ($tmp == $totest) {
$pathinfo = pathinfo($totest);
return (object) array('perm' => '000', 'type' => 'tree',
'hash' => $hash,
'fullpath' => $totest,
'file' => $pathinfo['basename'],
'commit' => $commit
);
}
if (!isset($tmp_hack["empty\t000\t\t$tmp/"])) {
$out[] = "empty\t000\t\t$tmp/";
$tmp_hack["empty\t000\t\t$tmp/"] = 1;
}
}
if (preg_match('/^(.*)\/$/', $file, $match)) {
$type = 'tree';
$file = $match[1];
} else {
$type = 'blob';
}
if ($totest == $file) {
$pathinfo = pathinfo($totest);
return (object) array('perm' => $perm, 'type' => $type,
'hash' => $hash,
'fullpath' => $totest,
'file' => $pathinfo['basename'],
'commit' => $commit
);
}
}
return false;
}
public function getFile($def, $cmd_only=false)
{
$cmd = sprintf(Pluf::f('hg_path', 'hg').' cat -R %s -r %s %s',
escapeshellarg($this->repo),
escapeshellarg($def->commit),
escapeshellarg($this->repo.'/'.$def->fullpath));
$cmd = Pluf::f('idf_exec_cmd_prefix', '').$cmd;
return ($cmd_only) ?
$cmd : self::shell_exec('IDF_Scm_Mercurial::getFile', $cmd);
}
/**
* Get the branches.
*
* @return array Branches.
*/
public function getBranches()
{
if (isset($this->cache['branches'])) {
return $this->cache['branches'];
}
$out = array();
$cmd = sprintf(Pluf::f('hg_path', 'hg').' branches -R %s',
escapeshellarg($this->repo));
$cmd = Pluf::f('idf_exec_cmd_prefix', '').$cmd;
self::exec('IDF_Scm_Mercurial::getBranches', $cmd, $out);
$res = array();
foreach ($out as $b) {
preg_match('/(.+?)\s+\S+:(\S+)/', $b, $match);
$res[$match[1]] = '';
}
$this->cache['branches'] = $res;
return $res;
}
/**
* Get the tags.
*
* @return array Tags.
*/
public function getTags()
{
if (isset($this->cache['tags'])) {
return $this->cache['tags'];
}
$out = array();
$cmd = sprintf(Pluf::f('hg_path', 'hg').' tags -R %s',
escapeshellarg($this->repo));
$cmd = Pluf::f('idf_exec_cmd_prefix', '').$cmd;
self::exec('IDF_Scm_Mercurial::getTags', $cmd, $out);
$res = array();
foreach ($out as $b) {
preg_match('/(.+?)\s+\S+:(\S+)/', $b, $match);
$res[$match[1]] = '';
}
$this->cache['tags'] = $res;
return $res;
}
public function inBranches($commit, $path)
{
return (in_array($commit, array_keys($this->getBranches())))
? array($commit) : array();
}
public function inTags($commit, $path)
{
return (in_array($commit, array_keys($this->getTags())))
? array($commit) : array();
}
/**
* Get commit details.
*
* @param string Commit ('HEAD')
* @param bool Get commit diff (false)
* @return array Changes
*/
public function getCommit($commit, $getdiff=false)
{
if ($this->validateRevision($commit) != IDF_Scm::REVISION_VALID) {
return false;
}
$logStyle = new IDF_Scm_Mercurial_LogStyle(IDF_Scm_Mercurial_LogStyle::FULL_LOG);
$tmpl = ($getdiff)
? Pluf::f('hg_path', 'hg').' log --debug -p -r %s -R %s --style %s'
: Pluf::f('hg_path', 'hg').' log --debug -r %s -R %s --style %s';
$cmd = sprintf($tmpl,
escapeshellarg($commit),
escapeshellarg($this->repo),
escapeshellarg($logStyle->get()));
$cmd = Pluf::f('idf_exec_cmd_prefix', '').$cmd;
$out = self::shell_exec('IDF_Scm_Mercurial::getCommit', $cmd);
if (strlen($out) == 0) {
return false;
}
$diffStart = strpos($out, 'diff -r');
$diff = '';
if ($diffStart !== false) {
$log = substr($out, 0, $diffStart);
$diff = substr($out, $diffStart);
} else {
$log = $out;
}
$out = self::parseLog(preg_split('/\r\n|\n/', $log));
$out[0]->diff = $diff;
return $out[0];
}
/**
* @see IDF_Scm::getChanges()
*/
public function getChanges($commit)
{
if ($this->validateRevision($commit) != IDF_Scm::REVISION_VALID) {
return null;
}
$logStyle = new IDF_Scm_Mercurial_LogStyle(IDF_Scm_Mercurial_LogStyle::CHANGES);
$tmpl = Pluf::f('hg_path', 'hg').' log --debug -r %s -R %s --style %s';
$cmd = sprintf($tmpl,
escapeshellarg($commit),
escapeshellarg($this->repo),
escapeshellarg($logStyle->get()));
$out = array();
$cmd = Pluf::f('idf_exec_cmd_prefix', '').$cmd;
self::exec('IDF_Scm_Mercurial::getChanges', $cmd, $out);
$log = self::parseLog($out);
// we expect only one log entry that contains all the needed information
$log = $log[0];
$return = (object) array(
'additions' => preg_split('/\0/', $log->file_adds, -1, PREG_SPLIT_NO_EMPTY),
'deletions' => preg_split('/\0/', $log->file_dels, -1, PREG_SPLIT_NO_EMPTY),
'patches' => preg_split('/\0/', $log->file_mods, -1, PREG_SPLIT_NO_EMPTY),
// hg has no support for built-in attributes, so this keeps empty
'properties' => array(),
// these two are filled below
'copies' => array(),
'renames' => array(),
);
$file_copies = preg_split('/\0/', $log->file_copies, -1, PREG_SPLIT_NO_EMPTY);
// copies are treated as renames if they have an add _and_ a drop;
// only if they only have an add, but no drop, they're treated as copies
for ($i=0; $i<count($file_copies); $i+=2) {
$src = $file_copies[$i];
$trg = $file_copies[$i+1];
$srcidx = array_search($src, $return->deletions);
$trgidx = array_search($trg, $return->additions);
if ($srcidx !== false && $trgidx !== false) {
$return->renames[$src] = $trg;
unset($return->deletions[$srcidx]);
unset($return->additions[$trgidx]);
continue;
}
if ($srcidx === false && $trgidx !== false) {
$return->copies[$src] = $trg;
unset($return->additions[$trgidx]);
continue;
}
// file sutures (counter-operation to copy) not supported
}
return $return;
}
/**
* Check if a commit is big.
*
* @param string Commit ('HEAD')
* @return bool The commit is big
*/
public function isCommitLarge($commit='HEAD')
{
return false;
}
/**
* Get latest changes.
*
* @param string Commit ('HEAD').
* @param int Number of changes (10).
* @return array Changes.
*/
public function getChangeLog($commit='tip', $n=10)
{
$logStyle = new IDF_Scm_Mercurial_LogStyle(IDF_Scm_Mercurial_LogStyle::FULL_LOG);
// hg accepts revision IDs as arguments to --branch / -b as well and
// uses the branch of the revision in question to filter the other
// revisions
if ($n) {
$cmd = sprintf(Pluf::f('hg_path', 'hg').' log --debug -R %s -l%s --style %s -b %s',
escapeshellarg($this->repo),
$n,
escapeshellarg($logStyle->get()),
escapeshellarg($commit));
} else {
$cmd = sprintf(Pluf::f('hg_path', 'hg').' log --debug -R %s --style %s -b %s',
escapeshellarg($this->repo),
escapeshellarg($logStyle->get()),
escapeshellarg($commit));
}
$out = array();
$cmd = Pluf::f('idf_exec_cmd_prefix', '').$cmd;
self::exec('IDF_Scm_Mercurial::getChangeLog', $cmd, $out);
return self::parseLog($out);
}
/**
* Parse the log lines of our custom style format.
*
* @param array Lines.
* @return array Change log.
*/
public static function parseLog($lines)
{
$res = array();
$c = array();
$headers_processed = false;
foreach ($lines as $line) {
if ($line == "\0") {
$headers_processed = false;
if (count($c) > 0) {
if (array_key_exists('full_message', $c))
$c['full_message'] = trim($c['full_message']);
$res[] = (object) $c;
}
continue;
}
if (!$headers_processed && empty($line)) {
$headers_processed = true;
continue;
}
if (!$headers_processed && preg_match('/^(\S+):\s*(.*)/', $line, $match)) {
$match[1] = strtolower($match[1]);
if ($match[1] == 'changeset') {
$c = array();
$c['commit'] = $match[2];
$c['tree'] = $c['commit'];
$c['full_message'] = '';
} elseif ($match[1] == 'author') {
$c['author'] = $match[2];
} elseif ($match[1] == 'branch') {
$c['branch'] = empty($match[2]) ? 'default' : $match[2];
} elseif ($match[1] == 'parents') {
$parents = preg_split('/\s+/', $match[2], -1, PREG_SPLIT_NO_EMPTY);
for ($i=0, $j=count($parents); $i<$j; ++$i) {
if ($parents[$i] == '000000000000')
unset($parents[$i]);
}
$c['parents'] = $parents;
} else {
$c[$match[1]] = trim($match[2]);
}
if ($match[1] == 'date') {
$c['date'] = gmdate('Y-m-d H:i:s', strtotime($match[2]));
}
continue;
}
if ($headers_processed) {
if (empty($c['title']))
$c['title'] = trim($line);
else
$c['full_message'] .= trim($line)."\n";
continue;
}
}
return $res;
}
/**
* Generate a zip archive at a given commit.
*
* @param string Commit
* @param string Prefix ('git-repo-dump')
* @return Pluf_HTTP_Response The HTTP response containing the zip archive
*/
public function getArchiveStream($commit, $prefix='')
{
$cmd = sprintf(Pluf::f('idf_exec_cmd_prefix', '').
Pluf::f('hg_path', 'hg').' archive --type=zip -R %s -r %s -',
escapeshellarg($this->repo),
escapeshellarg($commit));
return new Pluf_HTTP_Response_CommandPassThru($cmd, 'application/x-zip');
}
/**
* @see IDF_Scm::getDiffPathStripLevel()
*/
public function getDiffPathStripLevel()
{
return 1;
}
}