git - 为每个分支保留不同的配置文件(未跟踪)

Question

在一个 git 存储库中，我有两个文件:config/conf.yaml.sample(由 git 跟踪，但在我的程序启动时它会被忽略)和一个名为 config/conf.yaml(git 会忽略它，但会在我的程序启动时读取它)。

当我从分支 A 切换到分支 B 时，我总是有相同的配置文件(因为 config/conf.yaml 未被跟踪)，这意味着，例如，每个分支都与同一个数据库相关、相同的端口等。

我想为每个分支保留不同的 config/conf.yaml，以便在切换分支时它会发生变化，但我不想让 git 跟踪它(例如，因为它包含访问数据库的名称和密码)。

我该怎么做？

Answer 1

好像是 Git 的 post-checkout hook就在你的巷子里:

This hook is invoked when a git checkout is run after having updated the worktree. The hook is given three parameters: the ref of the previous HEAD, the ref of the new HEAD (which may or may not have changed), and a flag indicating whether the checkout was a branch checkout (changing branches, flag=1) or a file checkout (retrieving a file from the index, flag=0). This hook cannot affect the outcome of git checkout.

It is also run after git clone, unless the --no-checkout (-n) option is used. The first parameter given to the hook is the null-ref, the second the ref of the new HEAD and the flag is always 1.

This hook can be used to perform repository validity checks, auto-display differences from the previous HEAD if different, or set working dir metadata properties.

以下脚本(必须可执行)应该可以帮助您开始；修改它以满足您的需要并将其保存为 .git/hooks/post-checkout:

#!/bin/sh
#
# An example post-checkout hook script to perform an action conditionally on
# the branch (if any) just checked out.
# 
# Test whether a branch was just checked out
if [ "$3" -eq 1 ]; then
    # Save the value of HEAD (do not issue an error if HEAD is detached) 
    symrefHEAD=`git symbolic-ref --quiet HEAD`
    if [  "$symrefHEAD" = "refs/heads/master" ]; then
        # Do something useful for master, e.g.
        # cp config/conf_master.yaml config/conf.yaml
        printf " --- test: You just checked out master. ---\n"
    elif [ "$symrefHEAD" = "refs/heads/develop" ] ; then
        # Do something useful for develop, e.g.
        # cp config/conf_develop.yaml config/conf.yaml
        printf "--- test: You just checked out develop. ---\n"
    else
        # default case
        printf "You just checked out some other branch.\n"
    fi
else
    printf "No branch was checked out\n"
fi