From e8c9f95156e35909e3aa8a87bb11d635224a9298 Mon Sep 17 00:00:00 2001
From: Pavel Shevaev <pacha.shevaev@gmail.com>
Date: Mon, 23 Oct 2023 15:13:23 +0300
Subject: [PATCH] Initial commit

---
 .gitignore    |   1 +
 composer.json |  11 +++++
 git.inc.php   | 118 ++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 130 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 composer.json
 create mode 100644 git.inc.php

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..6e92f57
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+tags
diff --git a/composer.json b/composer.json
new file mode 100644
index 0000000..fa8ff44
--- /dev/null
+++ b/composer.json
@@ -0,0 +1,11 @@
+{
+    "name": "bit/taskman_git",
+    "description": "taskman git utils",
+    "homepage": "https://git.bit5.ru/composer/taskman_git",
+    "require": {
+        "php": ">=7.4"
+    },
+    "autoload": {
+        "classmap": ["git.inc.php"]
+    }
+}
diff --git a/git.inc.php b/git.inc.php
new file mode 100644
index 0000000..3eb8225
--- /dev/null
+++ b/git.inc.php
@@ -0,0 +1,118 @@
+<?php
+namespace taskman;
+use Exception;
+
+task('git_info', function()
+{ 
+  list($rev_hash, $branch, $revision_number) = git_get_info();
+  $info = "==============GIT INFO==============\n"
+    . "$rev_hash - hash\n"
+    . "$branch - branch\n"
+    . "$revision_number - revision\n";
+  echo $info;
+});
+
+function git_do($repo, $action, &$out = NULL, $verbose = true)
+{
+  $cli = "cd $repo && git $action";
+  if($verbose)
+    echo "Git CLI: $cli\n";
+  exec($cli, $out, $result);
+  if($verbose || $result !== 0)
+    echo implode("\n", $out)."\n";
+  if($result !== 0)
+    throw new Exception("Error executing command: $cli ($result)");
+}
+
+function git_is_repo($directory)
+{
+  $output = [];
+  git_do($directory, "rev-parse --is-inside-work-tree", $output, false);
+  return !empty($output) && $output[0] === 'true';
+}
+
+function git_rev_from_commit_message($message)
+{
+  // Regular expression pattern to extract the commit hash
+  $pattern = '/\b[0-9a-f]{7,40}\b/';
+
+  // Extract the commit hash from the message
+  preg_match($pattern, $message, $matches);
+  $commit_hash = $matches[0] ?? '';
+  return $commit_hash;
+}
+
+function get_git_last_remote_tag($repo)
+{
+  $remote_tags = [];
+  git_do($repo, 'ls-remote --tags origin', $output, false);
+  foreach($output as $line)
+  {
+    $items = explode("\t", trim($line));
+    if(sizeof($items) < 2)
+      continue;
+    $tag_spec = $items[1];
+    if(str_ends_with($tag_spec, '^{}'))
+      continue;
+    $tag = str_replace('refs/tags/', '', $tag_spec);
+    $remote_tags[] = $tag;
+  }
+  return _get_last_version_tag($remote_tags);
+}
+
+function _get_last_version_tag(array $tags)
+{
+  if(!$tags)
+    return false;
+  usort($tags, function ($tag1, $tag2) {
+    $version1 = str_replace('v', '', $tag1);
+    $version2 = str_replace('v', '', $tag2);
+    return version_compare($version1, $version2);
+  });
+  return end($tags);
+}
+
+class GitVersion
+{
+  public $major;
+  public $minor;
+  public $patch;
+
+  static function parse($version_str)
+  {
+    $parts = explode('.', $version_str);
+    if(sizeof($parts) != 3)
+      throw new Exception("Invalid version string: $version_str"); 
+    $v = new GitVersion();
+    if($parts[0][0] === 'v')
+      $parts[0] = substr($parts[0], 1);
+    $v->major = (int)$parts[0];
+    $v->minor = (int)$parts[1];
+    $v->patch = (int)$parts[2];
+    return $v;
+  }
+
+  function bump($up_mode)
+  {
+    if($up_mode == 1)
+      ++$this->patch;
+    else if($up_mode == 2)
+    {
+      ++$this->minor;
+      $this->patch = 0;
+    }
+    else if($up_mode == 3)
+    {
+      ++$this->major;
+      $this->minor = 0;
+      $this->patch = 0;
+    }
+    else
+      throw new Exception("Unsupported up mode: $up_mode");
+  }
+
+  function encode()
+  {
+    return 'v'.$this->major.'.'.$this->minor.'.'.$this->patch;
+  }
+}