From 87412163745214c678e5c148766c1958658ba750 Mon Sep 17 00:00:00 2001
From: Manuel Weiser <manuel.weiser@me.com>
Date: Sun, 16 Feb 2025 10:45:12 +0100
Subject: [PATCH] feat: update changelog script to categorize commits and
 handle new changelog creation

---
 CHANGELOG.md                | 15 +++++++
 platformio.ini              |  2 +-
 scripts/update_changelog.py | 90 ++++++++++++++++++++++++++++---------
 3 files changed, 86 insertions(+), 21 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 286351e..77dce5a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,20 @@
 # Changelog
 
+## [1.0.4] - 2025-02-16
+### Added
+- improve changelog update script to handle absolute paths and create new changelog if missing
+
+
+## [1.0.3] - 2025-02-16
+### Added
+- 
+
+### Changed
+-
+
+### Fixed
+-
+
 ## [1.0.2] - 2025-02-16
 ### Added
 - Feature 1
diff --git a/platformio.ini b/platformio.ini
index 825a2f3..cc4c617 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -9,7 +9,7 @@
 ; https://docs.platformio.org/page/projectconf.html
 
 [common]
-version = "1.0.2"
+version = "1.0.4"
 
 [env:esp32dev]
 platform = espressif32
diff --git a/scripts/update_changelog.py b/scripts/update_changelog.py
index dfec2ad..012041e 100644
--- a/scripts/update_changelog.py
+++ b/scripts/update_changelog.py
@@ -1,13 +1,11 @@
 import os
 import re
+import subprocess
 from datetime import datetime
 
 def get_version():
-    # Get the script's directory
     script_dir = os.path.dirname(os.path.abspath(__file__))
-    # Get the project root directory (one level up)
     project_dir = os.path.dirname(script_dir)
-    
     platformio_path = os.path.join(project_dir, 'platformio.ini')
     
     with open(platformio_path, 'r') as f:
@@ -15,41 +13,93 @@ def get_version():
         version_match = re.search(r'version\s*=\s*"([^"]+)"', content)
         return version_match.group(1) if version_match else None
 
+def get_last_tag():
+    try:
+        result = subprocess.run(['git', 'describe', '--tags', '--abbrev=0'], 
+                              capture_output=True, text=True)
+        return result.stdout.strip()
+    except subprocess.CalledProcessError:
+        return None
+
+def categorize_commit(commit_msg):
+    """Categorize commit messages based on conventional commits"""
+    lower_msg = commit_msg.lower()
+    if any(x in lower_msg for x in ['feat', 'add', 'new']):
+        return 'Added'
+    elif any(x in lower_msg for x in ['fix', 'bug']):
+        return 'Fixed'
+    else:
+        return 'Changed'
+
+def get_changes_from_git():
+    """Get changes from git commits since last tag"""
+    changes = {
+        'Added': [],
+        'Changed': [],
+        'Fixed': []
+    }
+    
+    last_tag = get_last_tag()
+    
+    # Get commits since last tag
+    git_log_command = ['git', 'log', '--pretty=format:%s']
+    if last_tag:
+        git_log_command.append(f'{last_tag}..HEAD')
+    
+    try:
+        result = subprocess.run(git_log_command, capture_output=True, text=True)
+        commits = result.stdout.strip().split('\n')
+        
+        # Filter out empty commits and categorize
+        for commit in commits:
+            if commit:
+                category = categorize_commit(commit)
+                # Clean up commit message
+                clean_msg = re.sub(r'^(feat|fix|chore|docs|style|refactor|perf|test)(\(.*\))?:', '', commit).strip()
+                changes[category].append(clean_msg)
+                
+    except subprocess.CalledProcessError:
+        print("Error: Failed to get git commits")
+        return None
+    
+    return changes
+
 def update_changelog():
     version = get_version()
     today = datetime.now().strftime('%Y-%m-%d')
     
-    # Get absolute paths
     script_dir = os.path.dirname(os.path.abspath(__file__))
     project_dir = os.path.dirname(script_dir)
     changelog_path = os.path.join(project_dir, 'CHANGELOG.md')
     
-    changelog_template = f"""## [{version}] - {today}
-### Added
-- 
-
-### Changed
--
-
-### Fixed
--
-"""
+    # Get changes from git
+    changes = get_changes_from_git()
+    if not changes:
+        print("No changes found or error occurred")
+        return
+    
+    # Create changelog entry
+    changelog_entry = f"## [{version}] - {today}\n"
+    for section, entries in changes.items():
+        if entries:  # Only add sections that have entries
+            changelog_entry += f"### {section}\n"
+            for entry in entries:
+                changelog_entry += f"- {entry}\n"
+            changelog_entry += "\n"
     
     if not os.path.exists(changelog_path):
-        # Create new changelog if it doesn't exist
         with open(changelog_path, 'w') as f:
-            f.write(f"# Changelog\n\n{changelog_template}")
+            f.write(f"# Changelog\n\n{changelog_entry}")
     else:
-        # Update existing changelog
         with open(changelog_path, 'r') as f:
             content = f.read()
         
         if f"[{version}]" not in content:
-            # Only add new version if it doesn't exist
-            updated_content = content.replace("# Changelog\n", f"# Changelog\n\n{changelog_template}")
-            
+            updated_content = content.replace("# Changelog\n", f"# Changelog\n\n{changelog_entry}")
             with open(changelog_path, 'w') as f:
                 f.write(updated_content)
+        else:
+            print(f"Version {version} already exists in changelog")
 
 if __name__ == "__main__":
     update_changelog()
\ No newline at end of file