ref #17: git analyzer with get_log method

Author: jerray

modules/git_analyzer.php

@@ -0,0 +1,75 @@
+<?php
+
+class git_analyzer {
+
+    private $work_tree;
+
+    private $cmd;
+
+    private $workspace;
+
+    function __construct($workspace = null) {
+        $this->cmd = new git_command($workspace);
+        $this->workspace = $this->cmd->get_workspace();
+    }
+
+    function set_work_tree($work_tree) {
+
+        $dir = getcwd();
+        chdir("$this->workspace");
+        if (is_dir("$work_tree")) {
+            $this->work_tree = $work_tree;
+        }
+        chdir("$dir");
+    }
+
+    function get_log() {
+
+        if (empty($this->work_tree)) {
+            return null;
+        }
+
+        $params = $this->cmd->prepare_params();
+        $params->work_tree = $this->work_tree;
+        $params->other = array(
+            '--shortstat',
+            '--no-merges',
+            '--pretty=format:"[C:%H][A:%an][E:%ae][D:%at][%s]%n"',
+        );
+
+        $response = $this->cmd->exec('log', $params);
+        if (!$response) {
+            return null;
+        }
+        preg_match_all('/\[C:([^\]]+)\]\[A:([^\]]+)\]\[E:([^\]]+)\]\[D:([^\]]+)\]\[([^\n]*)\]\n'.
+                       '\s*(\d+) files changed, (\d+) insertions\(\+\), (\d+) deletions\(-\)/i',
+                       $response, $matches, PREG_SET_ORDER);
+        if (!$matches) {
+            return null;
+        }
+
+        $logs = array();
+        foreach($matches as $match) {
+            $log = new stdClass();
+            $log->commit = $match[1];
+            $log->author = $match[2];
+            $log->email = $match[3];
+            $log->date = $match[4];
+            $log->subject = $match[5];
+            $log->files = $match[6];
+            $log->insertions = $match[7];
+            $log->deletions = $match[8];
+            $logs[$log->commit] = $log;
+        }
+        return $logs;
+    }
+
+    function get_log_by_range() {
+    }
+
+    function get_log_by_commit() {
+    }
+
+    function get_detail_by_commit() {
+    }
+}

modules/git_command.php

@@ -19,6 +19,11 @@ function __construct($workspace = null) {
         $this->workspace = $workspace;
     }
 
+    function get_workspace() {
+
+        return $this->workspace;
+    }
+
     function prepare_params() {
 
         $param = new stdClass();
@@ -60,6 +65,7 @@ private function git_clone($param) {
     private function git_pull($param) {
 
         if (!is_dir("$param->work_tree")) {
+            clearstatcache();
             return false;
         }
 
@@ -71,6 +77,7 @@ private function git_pull($param) {
     private function git_log($param) {
 
         if (!is_dir("$param->work_tree")) {
+            clearstatcache();
             return false;
         }