[英]How can I make bash tab completion behave like vim tab completion and cycle through matching matches?
[英]How can I make tab completion for my Git alias behave like an existing command?
我正在编写一个shell脚本,向git添加“ review”子命令,以使其更容易进行代码审查。 从git difftool
,它是git diff
和git difftool
命令的精美包装器,但所需的键入较少。
一些示例用法:
# Lists added, deleted, renamed and modified files between master and current branch
git review master -l
# Opens difftool for files modified between master and current branch
git review -m
我想在我的shell脚本中启用分支自动完成功能,但是我一生都无法解决如何做到这一点。 这是我真正追求的:
git review ma<tab><tab>
然后,它的行为应类似于git checkout ma<tab><tab>
。
我的shell脚本:
#!/bin/env bash
function print_usage {
echo "Usage: git review <branch> <-a|-d|-m|-l> [-- paths/to filter/by]"
echo ""
echo " -a: Only review added files"
echo " -d: Only review delete files"
echo " -m: Only review modified files"
echo " -l: List files and and type of modification"
}
if [ -z "$1" ] || [ -z "$2" ]; then
print_usage
exit 1
fi
git_branch=$1
review_command=$2
path_filters=""
shift
shift
if [ "$1" = "--" ]; then
path_filters="$@"
fi
case $review_command in
"-a")
echo "Reviewing added files..."
if [ -z "$path_filters" ]; then
git difftool $git_branch -- $(git diff --name-status $git_branch | grep -E '^A' | awk '{print $2}')
else
git difftool $git_branch -- $(git diff --name-status $git_branch -- $path_filters | grep -E '^A' | awk '{print $2}')
fi
;;
"-d")
echo "Reviewing deleted files..."
if [ -z "$path_filters" ]; then
git difftool $git_branch -- $(git diff --name-status $git_branch | grep -E '^D' | awk '{print $2}')
else
git difftool $git_branch -- $(git diff --name-status $git_branch -- $path_filters | grep -E '^D' | awk '{print $2}')
fi
;;
"-m")
echo "Reviewing modified files..."
if [ -z "$path_filters" ]; then
git difftool $git_branch -- $(git diff --name-status $git_branch | grep -E '^M' | awk '{print $2}')
else
git difftool $git_branch -- $(git diff --name-status $git_branch -- $path_filters | grep -E '^M' | awk '{print $2}')
fi
;;
"-l")
echo "Differences between $git_branch and $(git mybranch)..."
if [ -z "$path_filters" ]; then
git diff --name-status $git_branch
else
git diff --name-status $git_branch -- $path_filters
fi
;;
esac
echo ""
echo "Review finished."
确实,由于我正在输入命令,因此我怀疑我的shell脚本是否与解决方案有关。
其他一些有用的信息:
有没有一种方法可以将git分支自动完成功能添加到自定义git扩展命令中?
Linux的一个有趣的相关问题: 自定义git命令autocompletion 。
让我们假设您的脚本的最低版本,例如
#!/usr/bin/env bash
git diff "$1"
这是可执行文件,位于$PATH
。 我们称之为gitreview
。
要为其获取别名,可以在.gitconfig
像这样添加它:
[alias]
review = "!f() { gitreview \"$@\"; }; f"
当您输入git
时,这将使您完成review
。 现在,要使其行为与git checkout
相同,可以使用null命令,如下所示:
review = "!f() { : git checkout ; gitreview \"$@\"; }; f"
它将完成与git checkout
相同的操作! 请注意, checkout
和;
之间的空白;
是必须的。
这在 git-completion.bash
的注释中提到:
# If you use complex aliases of form '!f() { ... }; f', you can use the null
# command ':' as the first command in the function body to declare the desired
# completion style. For example '!f() { : git commit ; ... }; f' will
# tell the completion to use commit completion. This also works with aliases
# of form "!sh -c '...'". For example, "!sh -c ': git commit ; ... '".
另外,您可以通过将脚本命名为git-review
并将其放在$PATH
某个位置,从而使脚本成为适当的外部命令。 要获得完成(假设您同时具有Bash和Git完成),请将其添加到~/.bash_completion
文件中(如果不存在,请创建它):
_git_review() { _git_checkout; }
Git完成(对于Git 2.18或更高版本)检查名为_git_$command
完成功能,然后您说“只调用_git_checkout
”。
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