feat: CI script assigns PR reviews based on the list of maintainers (#9913)

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Yuqiang Wang 2025-05-09 22:34:02 +08:00 committed by GitHub
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#
# Copyright (c) 2006-2025, RT-Thread Development Team
#
# SPDX-License-Identifier: Apache-2.0
#
# Change Logs:
# Date Author Notes
# 2025-01-21 kurisaW Initial version
# 2025-03-14 hydevcode
# Script Function Description: Assign PR reviews based on the MAINTAINERS list.
name: Auto Review Assistant
on:
pull_request_target:
branches: [ master ]
types: [opened, synchronize, reopened]
jobs:
assign-reviewers:
runs-on: ubuntu-22.04
if: github.repository_owner == 'RT-Thread'
permissions:
issues: read
pull-requests: write
contents: read
steps:
- name: Extract PR number
id: extract-pr
run: |
PR_NUMBER=${{ github.event.pull_request.number }}
echo "PR_NUMBER=${PR_NUMBER}" >> $GITHUB_OUTPUT
- name: Checkout code
uses: actions/checkout@v4
with:
ref: master
sparse-checkout: MAINTAINERS
persist-credentials: false
- name: Get changed files
id: changed_files
run: |
# 通过 GitHub API 获取 PR 的变更文件列表
changed_files=$(curl -s \
"https://api.github.com/repos/${{ github.repository }}/pulls/${{ steps.extract-pr.outputs.PR_NUMBER }}/files" | \
jq -r '.[].filename') # 使用 jq 提取文件名
echo "$changed_files" | grep -v '^MAINTAINERS$' > changed_files.txt
existing_comment=$(curl -s \
"https://api.github.com/repos/${{ github.repository }}/issues/${{ steps.extract-pr.outputs.PR_NUMBER }}/comments" | \
jq -r '.[] | select(.user.login == "github-actions[bot]") | {body: .body} | @base64')
comment_body=""
if [[ ! -z "$existing_comment" ]]; then
comment_body=$(echo "$existing_comment" | head -1 | base64 -d | jq -r .body|sed -nE 's/.*Last Updated: ([0-9]{4}-[0-9]{2}-[0-9]{2} [0-9]{2}:[0-9]{2} UTC).*/\1/p')
comment_time=$(date -d "$comment_body" +%s)
echo "${comment_body}"
echo "COMMENT_TIME=${comment_time}" >> $GITHUB_OUTPUT
else
comment_time=""
echo "COMMENT_TIME=${comment_time}" >> $GITHUB_OUTPUT
fi
echo "COMMENT_TIME=${comment_time}"
- name: Parse MAINTAINERS file
id: parse_maintainer
run: |
# 使用 AWK 解析 MAINTAINERS 文件格式:
# 提取 tag(标签)、path(路径)和 owners(维护者 GitHub ID)
awk '
/^tag:/ {
tag = substr($0, index($0, $2)) # 提取标签内容
}
/^path:/ {
path = substr($0, index($0, $2)) # 提取路径内容
}
/^owners:/ {
owners = substr($0, index($0, $2)) # 提取维护者信息
split(owners, parts, /[()]/) # 拆分出 GitHub ID括号内内容
github_ids = ""
for (i=2; i<=length(parts); i+=2) {
github_ids = github_ids "@" parts[i] " " # 拼接为 @user 格式
}
print tag "|" path "|" github_ids
}
' MAINTAINERS > tag_data.csv
- name: Generate reviewers list
id: generate_reviewers
run: |
# 根据变更文件路径匹配维护者规则
rm -f triggered_reviewers.txt
rm -f triggered_tags.txt
while IFS='|' read -r tag path reviewers; do
# 使用正则匹配路径(支持子目录)
if grep -qE "^$path(/|$)" changed_files.txt; then
echo "$reviewers" | tr ' ' '\n' >> triggered_reviewers.txt
echo "$tag" | tr ' ' '\n' >> triggered_tags.txt
fi
done < tag_data.csv
awk 'NF && !seen[$0]++' triggered_reviewers.txt > unique_reviewers.txt
awk 'NF && !seen[$0]++' triggered_tags.txt > unique_tags.txt
- name: Restore Reviewers Cache
id: reviewers-cache-restore
if: ${{ steps.changed_files.outputs.COMMENT_TIME != '' }}
uses: actions/cache/restore@v4
with:
path: |
unique_tags_bak.txt
unique_reviewers_bak.txt
key: ${{ runner.os }}-auto-assign-reviewers-${{ steps.extract-pr.outputs.PR_NUMBER }}-${{ steps.changed_files.outputs.COMMENT_TIME }}
- name: Get approval status
id: get_approval
run: |
current_time=$(date -u +"%Y-%m-%d %H:%M UTC")
reviewers=$(cat unique_reviewers.txt | tr '\n' '|')
# 获取 PR 的所有评论
comments=$(curl -s \
"https://api.github.com/repos/${{ github.repository }}/issues/${{ steps.extract-pr.outputs.PR_NUMBER }}/comments")
echo '#!/bin/bash' > approval_data.sh
echo 'declare -A approvals=()' >> approval_data.sh
# 使用 jq 解析包含 LGTM 的有效评论
jq -r --arg reviewers "$reviewers" '
.[] |
select(.user.login != "github-actions[bot]") | # 排除 bot 的评论
select(.body | test("^\\s*LGTM\\s*$"; "i")) | # 匹配 LGTM 评论(不区分大小写)
.user.login as $user |
"@\($user)" as $mention |
select($mention | inside($reviewers)) | # 过滤有效审查者
"approvals[\"\($mention)\"]=\"\(.created_at)\"" # 记录审批时间
' <<< "$comments" >> approval_data.sh
# 加载审查数据并生成状态报告
chmod +x approval_data.sh
source ./approval_data.sh
jq -r --arg reviewers "$reviewers" '
.[] |
select(.user.login != "github-actions[bot]") | # 排除 bot 的评论
select(.body | test("^\\s*LGTM\\s*$"; "i")) | # 匹配 LGTM 评论(不区分大小写)
.user.login as $user |
"@\($user)" as $mention |
select($mention | inside($reviewers)) | # 过滤有效审查者
"\($mention) \(.created_at)" # 输出审查者和时间
' <<< "$comments" >> approval_data.txt
notified_users=""
if [[ -f unique_reviewers_bak.txt ]]; then
notified_users=$(cat unique_reviewers_bak.txt | xargs)
else
notified_users=""
fi
{
echo "---"
echo "### 📊 Current Review Status (Last Updated: $current_time)"
while read -r reviewer; do
formatted_reviewers=""
for r in $reviewers; do
if [[ " ${notified_users[@]} " =~ " $reviewer " ]]; then
formatted_reviewers+="${reviewer#@}"
else
formatted_reviewers+="$reviewer"
fi
done
if [[ -n "${approvals[$reviewer]}" ]]; then
timestamp=$(date -d "${approvals[$reviewer]}" -u +"%Y-%m-%d %H:%M UTC")
echo "- ✅ **$formatted_reviewers** Reviewed On $timestamp"
else
echo "- ⌛ **$formatted_reviewers** Pending Review"
fi
done < unique_reviewers.txt
} > review_status.md
echo "CURRENT_TIME=${current_time}" >> $GITHUB_OUTPUT
- name: Generate review data
id: generate_review
run: |
unique_tags=""
unique_tags=$(cat unique_tags.txt | xargs)
unique_tags_bak=""
if [[ -f unique_tags_bak.txt ]]; then
unique_tags_bak=$(cat unique_tags_bak.txt | xargs)
fi
existing_tags=""
for r in $unique_tags; do
if [[ " ${unique_tags_bak[@]} " =~ " $r " ]]; then
echo "$r 不存在于数组中"
else
existing_tags+="$r "
fi
done
current_time=$(date -u +"%Y-%m-%d %H:%M UTC")
{
# 生成审查分配信息
echo "## 📌 Code Review Assignment"
echo ""
while IFS='|' read -r tag path reviewers; do
if grep -qE "^$path(/|$)" changed_files.txt; then
echo "### 🏷️ Tag: $tag"
echo "**Path:** \`$path\` "
if [[ " ${existing_tags[@]} " =~ " $tag " ]]; then
echo "**Reviewers:** $reviewers "
else
formatted_reviewers=""
for r in $reviewers; do
formatted_reviewers+="${r#@} "
done
echo "**Reviewers:** $formatted_reviewers "
fi
echo "<details>"
echo "<summary><b>Changed Files</b> (Click to expand)</summary>"
echo ""
grep -E "^$path(/|$)" changed_files.txt | sed 's/^/- /' # 列出匹配的变更文件
echo ""
echo "</details>"
echo ""
fi
done < tag_data.csv
# 插入审查状态
cat review_status.md
echo "---"
echo "### 📝 Review Instructions"
echo ""
echo "1. **维护者可以通过单击此处来刷新审查状态:** [🔄 刷新状态](${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }})"
echo " **Maintainers can refresh the review status by clicking here:** [🔄 Refresh Status](${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }})"
echo ""
echo "2. **确认审核通过后评论 \`LGTM/lgtm\`**"
echo " **Comment \`LGTM/lgtm\` after confirming approval**"
echo ""
echo "3. **PR合并前需至少一位维护者确认**"
echo " **PR must be confirmed by at least one maintainer before merging**"
echo ""
echo "> **刷新CI状态操作需要具备仓库写入权限。**"
echo "> **Refresh CI status operation requires repository Write permission.**"
} > review_data.md
- name: Post/Update comment
id: post_comment
run: |
# 查找现有的 bot 评论
existing_comment=$(curl -s \
-H "Authorization: Bearer ${{ secrets.GITHUB_TOKEN }}" \
"https://api.github.com/repos/${{ github.repository }}/issues/${{ steps.extract-pr.outputs.PR_NUMBER }}/comments" | \
jq -r '.[] | select(.user.login == "github-actions[bot]") | {id: .id, body: .body} | @base64')
if [[ -n "$existing_comment" ]]; then
# 更新现有评论
comment_id=$(echo "$existing_comment" | head -1 | base64 -d | jq -r .id)
echo "Updating existing comment $comment_id"
response=$(curl -s -X PATCH \
-H "Authorization: Bearer ${{ secrets.GITHUB_TOKEN }}" \
-d "$(jq -n --arg body "$(cat review_data.md)" '{body: $body}')" \
"https://api.github.com/repos/${{ github.repository }}/issues/comments/$comment_id")
else
# 创建新评论
echo "Creating new comment"
response=$(curl -s -X POST \
-H "Authorization: Bearer ${{ secrets.GITHUB_TOKEN }}" \
-d "$(jq -n --arg body "$(cat review_data.md)" '{body: $body}')" \
"https://api.github.com/repos/${{ github.repository }}/issues/${{ steps.extract-pr.outputs.PR_NUMBER }}/comments")
fi
- name: Get Comment Time
id: get_comment_time
run: |
existing_comment=$(curl -s \
"https://api.github.com/repos/${{ github.repository }}/issues/${{ steps.extract-pr.outputs.PR_NUMBER }}/comments" | \
jq -r '.[] | select(.user.login == "github-actions[bot]") | {body: .body} | @base64')
comment_body="${{ steps.get_approval.outputs.CURRENT_TIME }}"
comment_time=$(date -d "$comment_body" +%s)
echo "CURRENT_TIME=${comment_time}" >> $GITHUB_OUTPUT
cp unique_reviewers.txt unique_reviewers_bak.txt
cp unique_tags.txt unique_tags_bak.txt
- name: Restore Reviewers Save
id: reviewers-cache-save
uses: actions/cache/save@v4
with:
path: |
unique_tags_bak.txt
unique_reviewers_bak.txt
key: ${{ runner.os }}-auto-assign-reviewers-${{ steps.extract-pr.outputs.PR_NUMBER }}-${{ steps.get_comment_time.outputs.CURRENT_TIME }}

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MAINTAINERS Normal file
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# List of maintainers of the RT-Thread open-source community
#
# This file manages the maintainers and their associated sections in the repository.
# Developers should update this file according to project needs.
# The following are explanations of each field and guidelines for adding new maintainer entries.
#
# When adding new entries, please follow the format:
#
# 1. **tag** - Assign a unique tag to each entry for identifying the code module or functionality.
# - The tag should be concise and descriptive, such as `workflow`, `libc`...
# - **Rule for Adding**: Use a new tag when adding a new functionality or module to ensure it clearly describes the area of responsibility.
#
# 2. **path** - Specify the directory or file path that the maintainer is responsible for.
# - The path must be relative to the repository's root directory and can refer to either a single file or a folder.
# - If the maintainer is responsible for all files in a directory, use the directory path; if it's for a specific file, provide the full file path.
# - **Rule for Adding**: Ensure that the path correctly points to the relevant code location. Please note that a tag should correspond to only one path. Currently, multiple paths are not supported.
#
# 3. **owners** - List the maintainers responsible for the section, including their GitHub usernames and contact information.
# - The owners should be listed as a comma-separated list if there are multiple maintainers.
# - Format: `Name(GitHub username)<email address>`.
# - **Rule for Adding**: Ensure that the listed GitHub usernames are correct, and the maintainers are aware of their responsibilities and duties.
#
# Example: How to Add a Maintainer Entry
#
# The following is a template for adding new entries in the MAINTAINER file:
#
# tag: <module-name>
# path: <file-or-directory-path>
# owners: <maintainer1>, <maintainer2>, ...
#
# When adding entries, please follow these guidelines:
# - Ensure the `tag` is unique and descriptive.
# - Ensure the `path` points to the correct location in the repository.
# - Ensure the `owners` are accurate and that all new maintainers are aware of their responsibilities.
#
# Example Entry:
# tag: example-module
# path: example/module/path
# owners: John Doe(johndoe)<johndoe@example.com>, Jane Smith(janesmith)<janesmith@example.com>
# Note:
# - Each entry includes a `tag` that identifies the module or functionality, a `path` that points to the relevant code location, and `owners` who are the maintainers for that part of the codebase.
# - If there are multiple entries, each entry should be separated by a blank line. Within a single entry, there is no need to insert blank lines between the tag, path, and owners.
# Below are existing maintainer entries, divided by module:
tag: workflow
path: .github
owners: supper thomas(supperthomas)<78900636@qq.com>, Bingru Zhang(Rbb666)<751061401@qq.com>, Yuqiang Wang(kurisaW)<2053731441@qq.com>
tag: stm32f407-rt-spark
path: bsp/stm32/stm32f407-rt-spark
owners: Bingru Zhang(Rbb666)<751061401@qq.com>, Yuqiang Wang(kurisaW)<2053731441@qq.com>
tag: libc
path: components/libc
owners: Meco Jianting Man(mysterywolf)<920369182@qq.com>