indefero/src/IDF/Scm/Monotone.php

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<?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 Céondo 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 ***** */
/**
* Monotone utils.
*
*/
class IDF_Scm_Monotone extends IDF_Scm
{
public static $MIN_INTERFACE_VERSION = 12.0;
/* ============================================== *
* *
* Common Methods Implemented By All The SCMs *
* *
* ============================================== */
public function __construct($repo, $project=null)
{
$this->repo = $repo;
$this->project = $project;
}
public function getRepositorySize()
{
if (!file_exists($this->repo)) {
return 0;
}
$cmd = Pluf::f('idf_exec_cmd_prefix', '').'du -sk '
.escapeshellarg($this->repo);
$out = explode(' ',
self::shell_exec('IDF_Scm_Monotone::getRepositorySize', $cmd),
2);
return (int) $out[0]*1024;
}
public function isAvailable()
{
$out = array();
try {
$cmd = Pluf::f('idf_exec_cmd_prefix', '')
.sprintf("%s -d %s automate interface_version",
Pluf::f('mtn_path', 'mtn'),
escapeshellarg($this->repo));
self::exec('IDF_Scm_Monotone::isAvailable',
$cmd, $out, $return);
} catch (IDF_Scm_Exception $e) {
return false;
}
return count($out) > 0 && floatval($out[0]) >= self::$MIN_INTERFACE_VERSION;
}
public function getBranches()
{
if (isset($this->cache['branches'])) {
return $this->cache['branches'];
}
// FIXME: introduce handling of suspended branches
$cmd = Pluf::f('idf_exec_cmd_prefix', '')
.sprintf("%s -d %s automate branches",
Pluf::f('mtn_path', 'mtn'),
escapeshellarg($this->repo));
self::exec('IDF_Scm_Monotone::getBranches',
$cmd, $out, $return);
if ($return != 0) {
throw new IDF_Scm_Exception(sprintf($this->error_tpl,
$cmd, $return,
implode("\n", $out)));
}
$res = array();
// FIXME: we could expand each branch with one of its head revisions
// here, but these would soon become bogus anyway and we cannot
// map multiple head revisions here either, so we just use the
// selector as placeholder
foreach ($out as $b) {
$res["h:$b"] = $b;
}
$this->cache['branches'] = $res;
return $res;
}
/**
* monotone has no concept of a "main" branch, so just return
* the first one (the branch list is already sorted)
*
* @return string
*/
public function getMainBranch()
{
$branches = $this->getBranches();
return key($branches);
}
/**
* expands a selector or a partial revision id to zero, one or
* multiple 40 byte revision ids
*
* @param string $selector
* @return array
*/
private function _resolveSelector($selector)
{
$cmd = Pluf::f('idf_exec_cmd_prefix', '')
.sprintf("%s -d %s automate select %s",
Pluf::f('mtn_path', 'mtn'),
escapeshellarg($this->repo),
escapeshellarg($selector));
self::exec('IDF_Scm_Monotone::_resolveSelector',
$cmd, $out, $return);
return $out;
}
/**
* Parses monotone's basic_io format
*
* @param string $in
* @return array of arrays
*/
private static function _parseBasicIO($in)
{
if (substr($in, -1) != "\n")
$in .= "\n";
$pos = 0;
$stanzas = array();
while ($pos < strlen($in))
{
$stanza = array();
while ($pos < strlen($in))
{
if ($in[$pos] == "\n") break;
$stanzaLine = array("key" => "", "values" => array(), "hash" => null);
while ($pos < strlen($in))
{
$ch = $in[$pos];
if ($ch == '"' || $ch == '[') break;
++$pos;
if ($ch == ' ') continue;
$stanzaLine['key'] .= $ch;
}
if ($in[$pos] == '[')
{
++$pos; // opening square bracket
$stanzaLine['hash'] = substr($in, $pos, 40);
$pos += 40;
++$pos; // closing square bracket
}
else
{
$valCount = 0;
while ($in[$pos] == '"')
{
++$pos; // opening quote
$stanzaLine['values'][$valCount] = "";
while ($pos < strlen($in))
{
$ch = $in[$pos]; $pr = $in[$pos-1];
if ($ch == '"' && $pr != '\\') break;
++$pos;
$stanzaLine['values'][$valCount] .= $ch;
}
++$pos; // closing quote
if ($in[$pos] == ' ')
{
++$pos; // space
++$valCount;
}
}
}
$stanza[] = $stanzaLine;
++$pos; // newline
}
$stanzas[] = $stanza;
++$pos; // newline
}
return $stanzas;
}
private function _getCerts($rev)
{
static $certCache = array();
if (!array_key_exists($rev, $certCache))
{
$cmd = Pluf::f('idf_exec_cmd_prefix', '')
.sprintf("%s -d %s automate certs %s",
Pluf::f('mtn_path', 'mtn'),
escapeshellarg($this->repo),
escapeshellarg($rev));
self::exec('IDF_Scm_Monotone::_getCerts',
$cmd, $out, $return);
$stanzas = self::_parseBasicIO(implode("\n", $out));
$certs = array();
foreach ($stanzas as $stanza)
{
$certname = null;
foreach ($stanza as $stanzaline)
{
// luckily, name always comes before value
if ($stanzaline['key'] == "name")
{
$certname = $stanzaline['values'][0];
continue;
}
if ($stanzaline['key'] == "value")
{
if (!array_key_exists($certname, $certs))
{
$certs[$certname] = array();
}
$certs[$certname][] = $stanzaline['values'][0];
break;
}
}
}
$certCache[$rev] = $certs;
}
return $certCache[$rev];
}
private function _getUniqueCertValuesFor($revs, $certName)
{
$certValues = array();
foreach ($revs as $rev)
{
$certs = $this->_getCerts($rev);
if (!array_key_exists($certName, $certs))
continue;
$certValues = array_merge($certValues, $certs[$certName]);
}
return array_unique($certValues);
}
private function _getLastChangeFor($file, $startrev)
{
$cmd = Pluf::f('idf_exec_cmd_prefix', '')
.sprintf("%s -d %s automate get_content_changed %s %s",
Pluf::f('mtn_path', 'mtn'),
escapeshellarg($this->repo),
escapeshellarg($startrev),
escapeshellarg($file));
self::exec('IDF_Scm_Monotone::_getLastChangeFor',
$cmd, $out, $return);
$stanzas = self::_parseBasicIO(implode("\n", $out));
// FIXME: we only care about the first returned content mark
// everything else seem to be very rare cases
foreach ($stanzas as $stanza)
{
foreach ($stanza as $stanzaline)
{
if ($stanzaline['key'] == "content_mark")
{
return $stanzaline['hash'];
}
}
}
return null;
}
/**
* @see IDF_Scm::inBranches()
**/
public function inBranches($commit, $path)
{
$revs = $this->_resolveSelector($commit);
if (count($revs) == 0) return array();
return $this->_getUniqueCertValuesFor($revs, "branch");
}
/**
* @see IDF_Scm::getTags()
**/
public function getTags()
{
if (isset($this->cache['tags'])) {
return $this->cache['tags'];
}
$cmd = Pluf::f('idf_exec_cmd_prefix', '')
.sprintf("%s -d %s automate tags",
Pluf::f('mtn_path', 'mtn'),
escapeshellarg($this->repo));
self::exec('IDF_Scm_Monotone::getTags', $cmd, $out, $return);
$tags = array();
$stanzas = self::_parseBasicIO(implode("\n", $out));
foreach ($stanzas as $stanza)
{
$tagname = null;
foreach ($stanza as $stanzaline)
{
// revision comes directly after the tag stanza
if ($stanzaline['key'] == "tag")
{
$tagname = $stanzaline['values'][0];
continue;
}
if ($stanzaline['key'] == "revision")
{
$tags[$stanzaline['hash']] = $tagname;
break;
}
}
}
$this->cache['tags'] = $tags;
return $tags;
}
/**
* @see IDF_Scm::inTags()
**/
public function inTags($commit, $path)
{
$revs = $this->_resolveSelector($commit);
if (count($revs) == 0) return array();
return $this->_getUniqueCertValuesFor($revs, "tag");
}
/**
* @see IDF_Scm::getTree()
*/
public function getTree($commit, $folder='/', $branch=null)
{
$revs = $this->_resolveSelector($commit);
if (count($revs) == 0)
{
return array();
}
$cmd = Pluf::f('idf_exec_cmd_prefix', '')
.sprintf("%s -d %s automate get_manifest_of %s",
Pluf::f('mtn_path', 'mtn'),
escapeshellarg($this->repo),
escapeshellarg($revs[0]));
self::exec('IDF_Scm_Monotone::getTree', $cmd, $out, $return);
$files = array();
$stanzas = self::_parseBasicIO(implode("\n", $out));
$folder = $folder == '/' || empty($folder) ? '' : $folder.'/';
foreach ($stanzas as $stanza)
{
if ($stanza[0]['key'] == "format_version")
continue;
$path = $stanza[0]['values'][0];
if (!preg_match('#^'.$folder.'([^/]+)$#', $path, $m))
continue;
$file = array();
$file['file'] = $m[1];
$file['fullpath'] = $path;
$file['efullpath'] = self::smartEncode($path);
if ($stanza[0]['key'] == "dir")
{
$file['type'] = "tree";
$file['size'] = 0;
}
else
{
$file['type'] = "blob";
$file['hash'] = $stanza[1]['hash'];
$file['size'] = strlen($this->getFile((object)$file));
}
$rev = $this->_getLastChangeFor($file['fullpath'], $revs[0]);
if ($rev !== null)
{
$file['rev'] = $rev;
$certs = $this->_getCerts($rev);
// FIXME: this assumes that author, date and changelog are always given
$file['author'] = implode(", ", $certs['author']);
$dates = array();
foreach ($certs['date'] as $date)
$dates[] = gmdate('Y-m-d H:i:s', strtotime($date));
$file['date'] = implode(', ', $dates);
$file['log'] = substr(implode("; ", $certs['changelog']), 0, 80);
}
$files[] = (object) $file;
}
return $files;
}
/**
* Given the string describing the author from the log find the
* author in the database.
*
* @param string Author
* @return mixed Pluf_User or null
*/
public function findAuthor($author)
{
// We extract anything which looks like an email.
$match = array();
if (!preg_match('/([^ ]+@[^ ]+)/', $author, $match)) {
return null;
}
foreach (array('email', 'login') as $what) {
$sql = new Pluf_SQL($what.'=%s', array($match[1]));
$users = Pluf::factory('Pluf_User')->getList(array('filter'=>$sql->gen()));
if ($users->count() > 0) {
return $users[0];
}
}
return null;
}
private static function _getMasterBranch($project)
{
$conf = $project->getConf();
if (false === ($branch = $conf->getVal('mtn_master_branch', false))
|| empty($branch)) {
$branch = "*";
}
return $branch;
}
public static function getAnonymousAccessUrl($project)
{
return sprintf(
Pluf::f('mtn_remote_url'),
$project->shortname,
self::_getMasterBranch($project)
);
}
public static function getAuthAccessUrl($project, $user)
{
return self::getAnonymousAccessUrl($project);
}
/**
* Returns this object correctly initialized for the project.
*
* @param IDF_Project
* @return IDF_Scm_Monotone
*/
public static function factory($project)
{
$rep = sprintf(Pluf::f('mtn_repositories'), $project->shortname);
return new IDF_Scm_Monotone($rep, $project);
}
public function isValidRevision($commit)
{
$revs = $this->_resolveSelector($commit);
return count($revs) == 1;
}
/**
* Get the file info.
*
* @param string File
* @param string Commit ('HEAD')
* @return false Information
*/
public function getPathInfo($file, $commit = null)
{
if ($commit === null) {
$commit = 'h:' . self::_getMasterBranch($this->project);
}
$revs = $this->_resolveSelector($commit);
if (count($revs) == 0)
return false;
$cmd = Pluf::f('idf_exec_cmd_prefix', '')
.sprintf("%s -d %s automate get_manifest_of %s",
Pluf::f('mtn_path', 'mtn'),
escapeshellarg($this->repo),
escapeshellarg($revs[0]));
self::exec('IDF_Scm_Monotone::getPathInfo', $cmd, $out, $return);
$files = array();
$stanzas = self::_parseBasicIO(implode("\n", $out));
foreach ($stanzas as $stanza)
{
if ($stanza[0]['key'] == "format_version")
continue;
$path = $stanza[0]['values'][0];
if (!preg_match('#^'.$file.'$#', $path, $m))
continue;
$file = array();
$file['fullpath'] = $path;
if ($stanza[0]['key'] == "dir")
{
$file['type'] = "tree";
$file['hash'] = null;
$file['size'] = 0;
}
else
{
$file['type'] = "blob";
$file['hash'] = $stanza[1]['hash'];
$file['size'] = strlen($this->getFile((object)$file));
}
$pathinfo = pathinfo($file['fullpath']);
$file['file'] = $pathinfo['basename'];
$rev = $this->_getLastChangeFor($file['fullpath'], $revs[0]);
if ($rev !== null)
{
$file['rev'] = $rev;
$certs = $this->_getCerts($rev);
// FIXME: this assumes that author, date and changelog are always given
$file['author'] = implode(", ", $certs['author']);
$dates = array();
foreach ($certs['date'] as $date)
$dates[] = gmdate('Y-m-d H:i:s', strtotime($date));
$file['date'] = implode(', ', $dates);
$file['log'] = substr(implode("; ", $certs['changelog']), 0, 80);
}
return (object) $file;
}
return false;
}
public function getFile($def, $cmd_only=false)
{
$cmd = Pluf::f('idf_exec_cmd_prefix', '')
.sprintf("%s -d %s automate get_file %s",
Pluf::f('mtn_path', 'mtn'),
escapeshellarg($this->repo),
escapeshellarg($def->hash));
return ($cmd_only)
? $cmd : self::shell_exec('IDF_Scm_Monotone::getFile', $cmd);
}
private function _getDiff($target, $source = null)
{
if (empty($source))
{
$source = "p:$target";
}
// FIXME: add real support for merge revisions here which have
// two distinct diff sets
$targets = $this->_resolveSelector($target);
$sources = $this->_resolveSelector($source);
if (count($targets) == 0 || count($sources) == 0)
{
return "";
}
// if target contains a root revision, we cannot produce a diff
if (empty($sources[0]))
{
return "";
}
$cmd = Pluf::f('idf_exec_cmd_prefix', '')
.sprintf("%s -d %s automate content_diff -r %s -r %s",
Pluf::f('mtn_path', 'mtn'),
escapeshellarg($this->repo),
escapeshellarg($sources[0]),
escapeshellarg($targets[0]));
self::exec('IDF_Scm_Monotone::_getDiff',
$cmd, $out, $return);
return implode("\n", $out);
}
/**
* Get commit details.
*
* @param string Commit
* @param bool Get commit diff (false)
* @return array Changes
*/
public function getCommit($commit, $getdiff=false)
{
$revs = $this->_resolveSelector($commit);
if (count($revs) == 0)
return array();
$certs = $this->_getCerts($revs[0]);
// FIXME: this assumes that author, date and changelog are always given
$res['author'] = implode(", ", $certs['author']);
$dates = array();
foreach ($certs['date'] as $date)
$dates[] = gmdate('Y-m-d H:i:s', strtotime($date));
$res['date'] = implode(', ', $dates);
$res['title'] = implode("\n---\n, ", $certs['changelog']);
$res['commit'] = $revs[0];
$res['changes'] = ($getdiff) ? $this->_getDiff($revs[0]) : '';
return (object) $res;
}
/**
* Check if a commit is big.
*
* @param string Commit ('HEAD')
* @return bool The commit is big
*/
public function isCommitLarge($commit=null)
{
if (empty($commit))
{
$commit = "h:"+self::_getMasterBranch($this->project);
}
$revs = $this->_resolveSelector($commit);
if (count($revs) == 0)
return false;
$cmd = Pluf::f('idf_exec_cmd_prefix', '')
.sprintf("%s -d %s automate get_revision %s",
Pluf::f('mtn_path', 'mtn'),
escapeshellarg($this->repo),
escapeshellarg($revs[0]));
self::exec('IDF_Scm_Monotone::isCommitLarge',
$cmd, $out, $return);
$newAndPatchedFiles = 0;
$stanzas = self::_parseBasicIO(implode("\n", $out));
foreach ($stanzas as $stanza)
{
if ($stanza[0]['key'] == "patch" || $stanza[0]['key'] == "add_file")
$newAndPatchedFiles++;
}
return $newAndPatchedFiles > 100;
}
/**
* Get latest changes.
*
* @param string Commit ('HEAD').
* @param int Number of changes (10).
* @return array Changes.
*/
public function getChangeLog($commit='HEAD', $n=10)
{
if ($n === null) $n = '';
else $n = ' -'.$n;
$cmd = sprintf('GIT_DIR=%s '.Pluf::f('git_path', 'git').' log%s --date=iso --pretty=format:\'%s\' %s',
escapeshellarg($this->repo), $n, $this->mediumtree_fmt,
escapeshellarg($commit));
$out = array();
$cmd = Pluf::f('idf_exec_cmd_prefix', '').$cmd;
self::exec('IDF_Scm_Monotone::getChangeLog', $cmd, $out);
return self::parseLog($out);
}
}