如上面的评论所述，

complete -o default -o nospace -F _git_checkout gco

将不再工作。然而，在git-completion中有一个__git_complete函数。Bash可以用来为别名设置补全，如下所示:

__git_complete gco _git_checkout

另一个选项是使用~/。bash_completion文件。要创建git checkout的gco别名，只需输入以下内容:

_xfunc git __git_complete gco _git_checkout

然后在~/。Bashrc你只需要输入别名本身:

alias gco='git checkout'

两行。就是这样。

解释:

~/bash_completion在主bash_completion脚本的末尾被引用。在gentoo中，我在/usr/share/bash-completion/bash_completion中找到了主脚本。

_xfunc git位负责为您获取git完成文件，因此您不需要在~/.bashrc中放入任何其他内容。

接受的答案要求您复制.git- complete .sh并从~/中获取它。bashrc文件，我发现蹩脚。

PS:我仍在努力弄清楚如何不将整个git-completion脚本源到我的bash环境中。如果你找到了方法，请评论或编辑。

Felipe Contreras对Git补全功能(参见Git 2.30中的Zsh补全)非常积极，他提出(可能是Git 2.31, Q1 2021)一个公共函数将有助于别名自动补全。

他的建议:

Back in 2012 I argued for the introduction of a helper that would allow users to specify aliases like: git_complete gf git_fetch Back then there was pushback because there was no clear guideline for public functions (git_complete vs _git_complete vs _GIT_complete), and some aliases didn't actually work. Fast-forward to 2020 and there's still no guideline for public functions, and those aliases still don't work (even though I sent the fixes). This has not prevented people from using this function that is clearly needed to setup custom aliases (this page), and in fact it's the recommended way. But it is cumbersome that the user must type: __git_complete gf _git_fetch Or worse: __git_complete gk __gitk_main 8 years is more than enough time to stop waiting for the perfect to come; let's define a public function (with the same name) that is actually user-friendly: __git_complete gf git_fetch __git_complete gk gitk While also maintaining backwards compatibility. The logic is: If $2 exists, use it directly If not, check if __$2_main exists If not, check if _$2 exists If not, fail

我知道这个问题是关于bash的，但如果你使用zsh，这个改变@hesky-fisher回答将修复它。

From

# For each defined alias, extract the necessary elements and use them
# to call wrap_alias.
eval "$(alias -p | sed -e 's/alias \([^=][^=]*\)='\''\([^ ][^ ]*\) *\(.*\)'\''/wrap_alias \1 \2 '\''\3'\'' /')"

to:

# For each defined alias, extract the necessary elements and use them
# to call wrap_alias.
eval "$(alias | sd '^([^=]+)=(.+)' 'wrap_alias $1=$2')"

你需要sd(这可以用sed代替，但sd在我看来更好)

这样做是因为zsh没有别名-p，并且zsh中的别名输出不输出

alias <something>=<value>

就像在狂欢，但是

<something>=<value>

顺便说一下，我把初始化代码放在。zlogin文件中

我有一个别名g='git'，结合我的git别名，我键入如下内容

$ g co <branchname>

对于我的特定用例，更简单的解决方法是在git-completion中添加一行代码。

就在这条线下面:

__git_complete git _git

我添加了这一行来处理我的单个'g'别名:

__git_complete g _git

这个论坛页面展示了一个解决方案。

把这些行放到你的.bashrc或.bash_profile中:

# Author.: Ole J
# Date...: 23.03.2008
# License: Whatever

# Wraps a completion function
# make-completion-wrapper <actual completion function> <name of new func.>
#                         <command name> <list supplied arguments>
# eg.
#   alias agi='apt-get install'
#   make-completion-wrapper _apt_get _apt_get_install apt-get install
# defines a function called _apt_get_install (that's $2) that will complete
# the 'agi' alias. (complete -F _apt_get_install agi)
#
function make-completion-wrapper () {
    local function_name="$2"
    local arg_count=$(($#-3))
    local comp_function_name="$1"
    shift 2
    local function="
function $function_name {
    ((COMP_CWORD+=$arg_count))
    COMP_WORDS=( "$@" \${COMP_WORDS[@]:1} )
    "$comp_function_name"
    return 0
}"
    eval "$function"
}

# and now the commands that are specific to this SO question

alias gco='git checkout'

# we create a _git_checkout_mine function that will do the completion for "gco"
# using the completion function "_git"
make-completion-wrapper _git _git_checkout_mine git checkout

# we tell bash to actually use _git_checkout_mine to complete "gco"
complete -o bashdefault -o default -o nospace -F _git_checkout_mine gco

这个解决方案类似于balshetzer的脚本，但只有这个对我有效。(巴尔谢策的脚本对我的一些别名有问题。)