git pre receive hook 檢查提交消息

Question

我正在嘗試編寫一個預接收鈎子來使用 bash/shell 檢查提交消息的模式。

如果任何提交有問題，我想拒絕整個推送。 如何檢索提交消息？

Answer 1

在git docs中有一個完整的示例及其解釋，其中涵蓋了這一點。 鏈接到示例 。

大致翻譯一下ruby示例，我們有：

#!/bin/bash

set -eo pipefail

refname="$0"
oldrev="$1"
newrev="$2"

echo "Enforcing Policies..."

# Iterate over all the commits
for commit in $(git rev-list 538c33..d14fc7); do
  git cat-file commit "${commit}" | sed '1,/^$/d' | your-validator
done

Answer 2

經過多次嘗試和修復問題和邊緣情況后，我以下一個結束：

#!/bin/bash

# regexp sample to validate commit messages
COMMIT_MSG_PATTERN="^olala[0-9]{3}"

refname="$1"
oldrev="$2"
newrev="$3"

# list of commits to validate
if echo "$oldrev" | grep -Eq '^0+$'; then
    # list everything reachable from $newrev but not any heads
    #commits=$(git rev-list $(git for-each-ref --format='%(refname)' refs/heads/* | sed 's/^/\^/') "$newrev")
    
    # or shorter version that also get list of revisions reachable from $newrev but not from any branche
    commits=$(git rev-list $newrev --not --branches=*)
else
    commits=$(git rev-list ${oldrev}..${newrev})
fi

# Iterate over all the commits
for commit in $commits; do
  #echo "commit=$commit"
  MSG=$(git cat-file commit "${commit}" | sed '1,/^$/d')
  if echo "$MSG" | grep -qvE "$COMMIT_MSG_PATTERN" ;then
    echo "$MSG"
    echo "Your commit message must match the pattern '$COMMIT_MSG_PATTERN'"
    exit 1
  fi
done