From 317e707e05116b3e11c6824f32dd220b9c710069 Mon Sep 17 00:00:00 2001
From: Supper Thomas <78900636@qq.com>
Date: Thu, 15 May 2025 19:53:00 +0800
Subject: [PATCH] [action/ci] show the PR status for Pull request

---
 .github/workflows/git_diff_status_show.yml |  50 +++++
 tools/ci/git_diff_status_show.py           | 201 +++++++++++++++++++++
 2 files changed, 251 insertions(+)
 create mode 100644 .github/workflows/git_diff_status_show.yml
 create mode 100644 tools/ci/git_diff_status_show.py

diff --git a/.github/workflows/git_diff_status_show.yml b/.github/workflows/git_diff_status_show.yml
new file mode 100644
index 00000000000..f63cafed266
--- /dev/null
+++ b/.github/workflows/git_diff_status_show.yml
@@ -0,0 +1,50 @@
+#
+# Copyright (c) 2006-2023, RT-Thread Development Team
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+# Change Logs:
+# Date           Author       Notes
+# 2025-05-15     Supper Thomas show the PR size 
+#
+
+name: PR status
+
+# 这个ci主要用来显示当前的PR对于master节点上的增加的code size有多大
+on:
+  pull_request:
+    branches:
+      - master
+
+permissions:
+  contents: read # to fetch code (actions/checkout)
+
+jobs:
+  build:
+    runs-on: ubuntu-24.04
+    name: PR status show
+
+    steps:
+      - uses: actions/checkout@main
+        with:
+          fetch-depth: 0
+      - name: Set up Python
+        uses: actions/setup-python@main
+        with:
+          python-version: 3.8
+
+      - name: fetch origin
+        shell: bash
+        run: |
+          git config --global http.postBuffer 524288000
+          git remote -v
+          git fetch origin
+          git branch
+          git branch -a
+
+      - name: PR status show
+        if: ${{ success() }}
+        shell: bash
+        run: |
+          python tools/ci/git_diff_status_show.py origin/master
+
diff --git a/tools/ci/git_diff_status_show.py b/tools/ci/git_diff_status_show.py
new file mode 100644
index 00000000000..128964ff249
--- /dev/null
+++ b/tools/ci/git_diff_status_show.py
@@ -0,0 +1,201 @@
+# 
+# Copyright (c) 2025, RT-Thread Development Team
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+# Change Logs:
+# Date           Author       Notes
+# 2025-05-15     supperthomas add PR status show
+#
+#!/usr/bin/env python3
+import subprocess
+import sys
+import os
+import re
+import argparse
+import locale
+from typing import List, Dict
+
+class FileDiff:
+    def __init__(self, path: str, status: str, size_change: int = 0, old_size: int = 0, new_size: int = 0):
+        self.path = path
+        self.status = status  # A (added), M (modified), D (deleted), R (renamed)
+        self.size_change = size_change
+        self.old_size = old_size
+        self.new_size = new_size
+        
+    def __str__(self):
+        if self.status == 'A':
+            return f"Added {self.path}: {self.size_change} bytes"
+        elif self.status == 'D':
+            return f"Deleted {self.path}: was {self.old_size} bytes"
+        elif self.status == 'M' or self.status == 'R':
+            return f"Modified {self.path}: {self.size_change} bytes change"
+        else:
+            return f"{self.status} {self.path}"
+            
+class GitDiffAnalyzer:
+    def __init__(self, target_branch: str):
+        self.target_branch = target_branch
+        self.encoding = locale.getpreferredencoding()
+
+    def get_diff_files(self) -> List[FileDiff]:
+        """获取当前分支与目标分支之间的差异文件"""
+        # 找到当前分支和目标分支的最近共同祖先
+        merge_base = self.get_merge_base()
+        if not merge_base:
+            print("No common ancestor found between current branch and target branch")
+            sys.exit(1)
+            
+        # 获取差异文件列表
+        diff_cmd = f"git diff --name-status {merge_base} "
+        print(diff_cmd)
+        try:
+            output = subprocess.check_output(diff_cmd.split(), stderr=subprocess.STDOUT)
+            output = output.decode(self.encoding).strip()
+            print(output)
+        except subprocess.CalledProcessError as e:
+            print(f"Error executing git diff: {e.output.decode(self.encoding)}")
+            sys.exit(1)
+            
+        if not output:
+            print("No differences between current branch and target branch")
+            sys.exit(0)
+            
+        # 处理可能的换行符问题
+        output = output.replace('\r\n', '\n')
+        lines = output.split('\n')
+        
+        file_diffs = []
+        for line in lines:
+            line = line.strip()
+            if not line:
+                continue
+                
+            parts = line.split('\t')
+            if len(parts) < 2:
+                # 可能是重命名文件，格式为 "RXXX\told_path\tnew_path"
+                match = re.match(r'R(\d+)\t(.+)\t(.+)', line)
+                if match:
+                    status = 'R'
+                    old_path = match.group(2)
+                    new_path = match.group(3)
+                    # 计算重命名文件的修改大小
+                    old_size = self.get_file_size(old_path, self.target_branch)
+                    new_size = self.get_file_size(new_path, 'HEAD')
+                    size_change = new_size - old_size if old_size > 0 else new_size
+                    file_diffs.append(FileDiff(new_path, status, size_change, old_size, new_size))
+            else:
+                status = parts[0][0]  # 取状态码的第一个字符
+                path = parts[1]
+                
+                if status == 'A':
+                    # 新增文件，计算大小
+                    size = self.get_file_size(path, 'HEAD')
+                    file_diffs.append(FileDiff(path, status, size, 0, size))
+                elif status == 'D':
+                    # 删除文件，计算原大小
+                    size = self.get_file_size(path, self.target_branch)
+                    file_diffs.append(FileDiff(path, status, 0, size, 0))
+                elif status == 'M':
+                    # 修改文件，计算大小变化
+                    old_size = self.get_file_size(path, self.target_branch)
+                    new_size = self.get_file_size(path, 'HEAD')
+                    size_change = new_size - old_size
+                    file_diffs.append(FileDiff(path, status, size_change, old_size, new_size))
+                    
+        return file_diffs
+
+    def get_merge_base(self) -> str:
+        """获取当前分支和目标分支的最近共同祖先"""
+        try:
+            cmd = f"git merge-base {self.target_branch} HEAD"
+            print(cmd)
+            output = subprocess.check_output(cmd.split(), stderr=subprocess.STDOUT)
+            return output.decode(self.encoding).strip()
+        except subprocess.CalledProcessError as e:
+            print(f"Error executing git merge-base: {e.output.decode(self.encoding)}")
+            return None
+
+    def get_file_size(self, path: str, ref: str) -> int:
+        """获取指定分支上文件的大小"""
+        try:
+            # 使用 git cat-file 来获取文件内容，然后计算其大小
+            cmd = f"git cat-file blob {ref}:{path}"
+            output = subprocess.check_output(cmd.split(), stderr=subprocess.STDOUT)
+            return len(output)
+        except subprocess.CalledProcessError:
+            # 如果文件不存在或无法获取，返回0
+            return 0
+
+def format_size(size: int) -> str:
+    """将字节大小转换为人类可读的格式"""
+    if size < 1024:
+        return f"{size} bytes"
+    elif size < 1024 * 1024:
+        return f"{size / 1024:.1f} KB"
+    elif size < 1024 * 1024 * 1024:
+        return f"{size / (1024 * 1024):.1f} MB"
+    else:
+        return f"{size / (1024 * 1024 * 1024):.1f} GB"
+
+def main():
+    parser = argparse.ArgumentParser(description='Compare current branch with target branch and show file differences.')
+    parser.add_argument('target_branch', help='Target branch to compare against (e.g., master)')
+    args = parser.parse_args()
+    
+    analyzer = GitDiffAnalyzer(args.target_branch)
+    file_diffs = analyzer.get_diff_files()
+    
+    # 生成报告
+    generate_report(file_diffs, args.target_branch)
+    
+
+        
+def generate_report(file_diffs: List[FileDiff], target_branch: str):
+    """生成差异报告"""
+    print(f"\n=== Comparison between {target_branch} and current branch ===\n")
+    
+    # 分类统计
+    added_files = [f for f in file_diffs if f.status == 'A']
+    removed_files = [f for f in file_diffs if f.status == 'D']
+    modified_files = [f for f in file_diffs if f.status == 'M']
+    renamed_files = [f for f in file_diffs if f.status == 'R']
+    
+    # 计算总变化量
+    total_added = sum(f.size_change for f in added_files)
+    total_removed = sum(f.old_size for f in removed_files)
+    total_modified = sum(abs(f.size_change) for f in modified_files)
+    # 计算总的大小变化
+    total_size_change = sum(f.size_change for f in file_diffs)
+
+    print(f"Total changes: {len(file_diffs)} files")
+    print(f"Added: {len(added_files)} files ({format_size(total_added)})")
+    print(f"Removed: {len(removed_files)} files ({format_size(total_removed)})")
+    print(f"Modified: {len(modified_files)} files ({format_size(total_modified)})")
+    print(f"Renamed: {len(renamed_files)} files")
+    print(f"\nTotal size change: {format_size(total_size_change)}")
+    print("\n" + "="*60 + "\n")
+    
+    # 显示详细差异
+    for diff in file_diffs:
+        print(diff)
+        
+        # 详细展示修改和新增的文件大小
+        if diff.status == 'A':
+            print(f"  Size: {format_size(diff.new_size)}")
+        elif diff.status == 'M':
+            print(f"  Original size: {format_size(diff.old_size)}")
+            print(f"  New size: {format_size(diff.new_size)}")
+            print(f"  Size change: {format_size(abs(diff.size_change))}")
+        elif diff.status == 'R':
+            print(f"  Original size: {format_size(diff.old_size)}")
+            print(f"  New size: {format_size(diff.new_size)}")
+            print(f"  Size change: {format_size(abs(diff.size_change))}")
+        elif diff.status == 'D':
+            print(f"  Original size: {format_size(diff.old_size)}")
+            
+        print("-" * 50)
+
+if __name__ == "__main__":
+    main()
\ No newline at end of file