Started on issue 544, extended commit details

* Scm.php: new SCM method "getChanges" which returns all available
  change information grouped by type
* Monotone.php: implement getChanges via get_revision
* <other scms>: rename "changes" member for getCommit to "diff" which
  matches better
* Source.php: query the commit's changes and set them in the template
* commit.html: render the changes, type-by-type. Link to the tree or
  the individual diff if applicable
* styles.css: some initial style sheet work

src/IDF/Scm/Git.php

@@ -431,10 +431,10 @@ class IDF_Scm_Git extends IDF_Scm
                 }
             }
             $out = self::parseLog($log);
-            $out[0]->changes = implode("\n", $change);
+            $out[0]->diff = implode("\n", $change);
         } else {
             $out = self::parseLog($out);
-            $out[0]->changes = '';
+            $out[0]->diff = '';
         }
 
         $out[0]->branch = implode(', ', $this->inBranches($commit, null));

src/IDF/Scm/Mercurial.php

@@ -359,7 +359,7 @@ class IDF_Scm_Mercurial extends IDF_Scm
             }
         }
         $out = self::parseLog($log, 6);
-        $out[0]->changes = implode("\n", $change);
+        $out[0]->diff = implode("\n", $change);
         return $out[0];
     }
 

src/IDF/Scm/Monotone.php

@@ -599,6 +599,75 @@ class IDF_Scm_Monotone extends IDF_Scm
         );
     }
 
+    /**
+     * @see IDF_Scm::getChanges()
+     */
+    public function getChanges($commit)
+    {
+        $revs = $this->_resolveSelector($commit);
+        if (count($revs) == 0)
+            return null;
+
+        $revision = $revs[0];
+        $out = $this->stdio->exec(array('get_revision', $revision));
+        $stanzas = IDF_Scm_Monotone_BasicIO::parse($out);
+
+        $return = (object) array(
+            'additions'  => array(),
+            'deletions'  => array(),
+            'renames'    => array(),
+            'patches'    => array(),
+            'properties' => array(),
+        );
+
+        foreach ($stanzas as $stanza) {
+            if ($stanza[0]['key'] == 'format_version' ||
+                $stanza[0]['key'] == 'old_revision' ||
+                $stanza[0]['key'] == 'new_manifest')
+                continue;
+
+            if ($stanza[0]['key'] == 'add_file' ||
+                $stanza[0]['key'] == 'add_dir') {
+                $return->additions[] = $stanza[0]['values'][0];
+                continue;
+            }
+
+            if ($stanza[0]['key'] == 'delete') {
+                $return->deletions[] = $stanza[0]['values'][0];
+                continue;
+            }
+
+            if ($stanza[0]['key'] == 'rename') {
+                $return->renames[$stanza[0]['values'][0]] =
+                    $stanza[1]['values'][0];
+                continue;
+            }
+
+            if ($stanza[0]['key'] == 'patch') {
+                $return->patches[] = $stanza[0]['values'][0];
+                continue;
+            }
+
+            if ($stanza[0]['key'] == 'clear' ||
+                $stanza[0]['key'] == 'set') {
+
+                $filename = $stanza[0]['values'][0];
+                if (!array_key_exists($filename, $return->properties)) {
+                    $return->properties[$filename] = array();
+                }
+                $key = $stanza[1]['values'][0];
+                $value = null;
+                if (isset($stanza[2])) {
+                    $value = $stanza[2]['values'][0];
+                }
+                $return->properties[$filename][$key] = $value;
+                continue;
+            }
+        }
+
+        return $return;
+    }
+
     /**
      * @see IDF_Scm::getCommit()
      */
@@ -626,7 +695,7 @@ class IDF_Scm_Monotone extends IDF_Scm
         $res['branch'] = implode(', ', $certs['branch']);
         $res['commit'] = $revs[0];
 
-        $res['changes'] = ($getdiff) ? $this->_getDiff($revs[0]) : '';
+        $res['diff'] = ($getdiff) ? $this->_getDiff($revs[0]) : '';
 
         return (object) $res;
     }

src/IDF/Scm/Svn.php

@@ -414,7 +414,7 @@ class IDF_Scm_Svn extends IDF_Scm
         $res['date'] = gmdate('Y-m-d H:i:s', strtotime((string) $xml->logentry->date));
         $res['title'] = (string) $xml->logentry->msg;
         $res['commit'] = (string) $xml->logentry['revision'];
-        $res['changes'] = ($getdiff) ? $this->getDiff($commit) : '';
+        $res['diff'] = ($getdiff) ? $this->getDiff($commit) : '';
         $res['tree'] = '';
         $res['branch'] = '';
         return (object) $res;