Question

我正在编写一个git hook来检查是否创建了一个新分支，如果是，则将一些预定义文件添加到该新分支的repo（一些配置文件）。但是因为分支实际上正处于创建过程中，我的逻辑失败了。

目前我在post-receive钩子中执行此操作，看起来像这样：

#!/bin/sh
read oldrev newrev refname
branch=$(git rev-parse --symbolic --abbrev-ref $refname)
echo "branch is $branch"
echo "oldrev is $oldrev and newrev is $newrev" 

# if $oldrev is 0000...0000, it's a new branch
# also check if the branch is of the format "feature_<name>"
zero="0000000000000000000000000000000000000000"
if [ "$oldrev" = "$zero" ] && [[ $branch =~ feature_.+ ]]; then
    #create a temp repo
    temp_repo=`mktemp -d /tmp/repo.XXXXX`
    cd $temp_repo
    git clone $git_url
    #here i create the config file needed, called file_name
    git checkout "$branch"
    git add "$file_name"
    git commit -m "Added config file"
    git push origin $branch
fi

这适用于现有分支，但对于新创建的分支，它会产生错误fatal: Not a git repository: '.'。

我不确定hook我应该使用这个逻辑，因为我对git并不是很了解。知道我怎么能这样做吗？

由于

Answer 1

如果你陷入困境，想要跑步＆＃34;正常＆＃34; git命令，您需要取消设置GIT_DIR环境变量（在钩子里面设置为.）。

那就是说，我认为这不是正确的做法。它应该工作，但似乎有点令人惊讶：如果我git push origin abc:feature_def我必须重新获取并从源合并以获取这个新提交的$file_name文件。要求我自己包含该文件是否更有意义，以便它已经存在于分支feature_def的提交中？

如果是这样，预先接收或更新挂钩将是进行检查的地方。一个简化的例子（未经测试）：

#! /bin/sh
# update hook - check if new branch is named
# feature_*, and if so, require config file

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

# BEGIN BOILERPLATE
NULL_SHA1=0000000000000000000000000000000000000000

# what kind of ref is it? also, get short name for branch-or-tag
case $refname in
refs/heads/*) reftype=branch; shortname=${refname#refs/heads/};;
refs/tags/*) reftype=tag; shortname=${refname#refs/tags/};;
*) reftype=other;;
esac

# what's happening to the ref?
# note: if update, there are potentially two different objtypes,
# but we only get the new one here
case $oldrev,$newrev in
$NULL_SHA1,*) action=create; objtype=$(git cat-file -t $newrev);;
*,$NULL_SHA1) action=delete; objtype=$(git cat-file -t $oldrev);;
*,*) action=update; objtype=$(git cat-file -t $newrev);;
esac
# END BOILERPLATE

# code to check a feature branch.  Top level file named xyzzy.conf must exist.
check_feature_branch()
{
    if ! git show $refname:xyzzy.conf >/dev/null 2>&1; then
        echo "new branch $branch does not contain xyzzy.conf at top level" >&2
        exit 1
    fi
}

# check whether we're creating a branch named feature_*

case $action,$reftype,$shortname in
create,branch,feature_*) check_feature_branch;;
*) ;;
esac

# if we got here it must be OK
exit 0

Git hook：如果创建了新分支，则向repo添加新文件

1 个答案: