contrib/completion/git-completion.zsh - jrn/git - Git at Google

 #compdef git gitk

 # zsh completion wrapper for git
 #
 # Copyright (c) 2012-2020 Felipe Contreras <felipe.contreras@gmail.com>
 #
 # The recommended way to install this script is to make a copy of it as a
 # file named '_git' inside any directory in your fpath.
 #
 # For example, create a directory '~/.zsh/', copy this file to '~/.zsh/_git',
 # and then add the following to your ~/.zshrc file:
 #
 #  fpath=(~/.zsh $fpath)
 #
 # You need git's bash completion script installed. By default bash-completion's
 # location will be used (e.g. pkg-config --variable=completionsdir bash-completion).
 #
 # If your bash completion script is somewhere else, you can specify the
 # location in your ~/.zshrc:
 #
 #  zstyle ':completion:*:*:git:*' script ~/.git-completion.bash
 #

 zstyle -T ':completion:*:*:git:*' tag-order && \
 	zstyle ':completion:*:*:git:*' tag-order 'common-commands'

 zstyle -s ":completion:*:*:git:*" script script
 if [ -z "$script" ]; then
 	local -a locations
 	local e bash_completion

 	bash_completion=$(pkg-config --variable=completionsdir bash-completion 2>/dev/null) ||
 		bash_completion='/usr/share/bash-completion/completions/'

 	locations=(
 		"$(dirname ${funcsourcetrace[1]%:*})"/git-completion.bash
 		"$HOME/.local/share/bash-completion/completions/git"
 		"$bash_completion/git"
 		'/etc/bash_completion.d/git' # old debian
 		)
 	for e in $locations; do
 		test -f $e && script="$e" && break
 	done
 fi

 local old_complete="$functions[complete]"
 functions[complete]=:
 GIT_SOURCING_ZSH_COMPLETION=y . "$script"
 functions[complete]="$old_complete"

 __gitcomp ()
 {
 	emulate -L zsh

 	local cur_="${3-$cur}"

 	case "$cur_" in
 	--*=)
 		;;
 	--no-*)
 		local c IFS=$' \t\n'
 		local -a array
 		for c in ${=1}; do
 			if [[ $c == "--" ]]; then
 				continue
 			fi
 			c="$c${4-}"
 			case $c in
 			--*=|*.) ;;
 			*) c="$c " ;;
 			esac
 			array+=("$c")
 		done
 		compset -P '*[=:]'
 		compadd -Q -S '' -p "${2-}" -a -- array && _ret=0
 		;;
 	*)
 		local c IFS=$' \t\n'
 		local -a array
 		for c in ${=1}; do
 			if [[ $c == "--" ]]; then
 				c="--no-...${4-}"
 				array+=("$c ")
 				break
 			fi
 			c="$c${4-}"
 			case $c in
 			--*=|*.) ;;
 			*) c="$c " ;;
 			esac
 			array+=("$c")
 		done
 		compset -P '*[=:]'
 		compadd -Q -S '' -p "${2-}" -a -- array && _ret=0
 		;;
 	esac
 }

 __gitcomp_direct ()
 {
 	emulate -L zsh

 	compset -P '*[=:]'
 	compadd -Q -S '' -- ${(f)1} && _ret=0
 }

 __gitcomp_nl ()
 {
 	emulate -L zsh

 	compset -P '*[=:]'
 	compadd -Q -S "${4- }" -p "${2-}" -- ${(f)1} && _ret=0
 }

 __gitcomp_file ()
 {
 	emulate -L zsh

 	compset -P '*[=:]'
 	compadd -f -p "${2-}" -- ${(f)1} && _ret=0
 }

 __gitcomp_direct_append ()
 {
 	__gitcomp_direct "$@"
 }

 __gitcomp_nl_append ()
 {
 	__gitcomp_nl "$@"
 }

 __gitcomp_file_direct ()
 {
 	__gitcomp_file "$1" ""
 }

 _git_zsh ()
 {
 	__gitcomp "v1.1"
 }

 __git_complete_command ()
 {
 	emulate -L zsh

 	local command="$1"
 	local completion_func="_git_${command//-/_}"
 	if (( $+functions[$completion_func] )); then
 		emulate ksh -c $completion_func
 		return 0
 	else
 		return 1
 	fi
 }

 __git_zsh_bash_func ()
 {
 	emulate -L ksh

 	local command=$1

 	__git_complete_command "$command" && return

 	local expansion=$(__git_aliased_command "$command")
 	if [ -n "$expansion" ]; then
 		words[1]=$expansion
 		__git_complete_command "$expansion"
 	fi
 }

 __git_zsh_cmd_common ()
 {
 	local -a list
 	list=(
 	add:'add file contents to the index'
 	bisect:'find by binary search the change that introduced a bug'
 	branch:'list, create, or delete branches'
 	checkout:'checkout a branch or paths to the working tree'
 	clone:'clone a repository into a new directory'
 	commit:'record changes to the repository'
 	diff:'show changes between commits, commit and working tree, etc'
 	fetch:'download objects and refs from another repository'
 	grep:'print lines matching a pattern'
 	init:'create an empty Git repository or reinitialize an existing one'
 	log:'show commit logs'
 	merge:'join two or more development histories together'
 	mv:'move or rename a file, a directory, or a symlink'
 	pull:'fetch from and merge with another repository or a local branch'
 	push:'update remote refs along with associated objects'
 	rebase:'forward-port local commits to the updated upstream head'
 	reset:'reset current HEAD to the specified state'
 	restore:'restore working tree files'
 	rm:'remove files from the working tree and from the index'
 	show:'show various types of objects'
 	status:'show the working tree status'
 	switch:'switch branches'
 	tag:'create, list, delete or verify a tag object signed with GPG')
 	_describe -t common-commands 'common commands' list && _ret=0
 }

 __git_zsh_cmd_alias ()
 {
 	local -a list
 	list=(${${(0)"$(git config -z --get-regexp '^alias\.*')"}#alias.})
 	list=(${(f)"$(printf "%s:alias for '%s'\n" ${(f@)list})"})
 	_describe -t alias-commands 'aliases' list && _ret=0
 }

 __git_zsh_cmd_all ()
 {
 	local -a list
 	emulate ksh -c __git_compute_all_commands
 	list=( ${=__git_all_commands} )
 	_describe -t all-commands 'all commands' list && _ret=0
 }

 __git_zsh_main ()
 {
 	local curcontext="$curcontext" state state_descr line
 	typeset -A opt_args
 	local -a orig_words

 	orig_words=( ${words[@]} )

 	_arguments -C \
 		'(-p --paginate --no-pager)'{-p,--paginate}'[pipe all output into ''less'']' \
 		'(-p --paginate)--no-pager[do not pipe git output into a pager]' \
 		'--git-dir=-[set the path to the repository]: :_directories' \
 		'--bare[treat the repository as a bare repository]' \
 		'(- :)--version[prints the git suite version]' \
 		'--exec-path=-[path to where your core git programs are installed]:: :_directories' \
 		'--html-path[print the path where git''s HTML documentation is installed]' \
 		'--info-path[print the path where the Info files are installed]' \
 		'--man-path[print the manpath (see `man(1)`) for the man pages]' \
 		'--work-tree=-[set the path to the working tree]: :_directories' \
 		'--namespace=-[set the git namespace]' \
 		'--no-replace-objects[do not use replacement refs to replace git objects]' \
 		'(- :)--help[prints the synopsis and a list of the most commonly used commands]: :->arg' \
 		'(-): :->command' \
 		'(-)*:: :->arg' && return

 	case $state in
 	(command)
 		_tags common-commands alias-commands all-commands
 		while _tags; do
 			_requested common-commands && __git_zsh_cmd_common
 			_requested alias-commands && __git_zsh_cmd_alias
 			_requested all-commands && __git_zsh_cmd_all
 			let _ret || break
 		done
 		;;
 	(arg)
 		local command="${words[1]}" __git_dir __git_cmd_idx=1

 		if (( $+opt_args[--bare] )); then
 			__git_dir='.'
 		else
 			__git_dir=${opt_args[--git-dir]}
 		fi

 		(( $+opt_args[--help] )) && command='help'

 		words=( ${orig_words[@]} )

 		__git_zsh_bash_func $command
 		;;
 	esac
 }

 _git ()
 {
 	local _ret=1
 	local cur cword prev

 	cur=${words[CURRENT]}
 	prev=${words[CURRENT-1]}
 	let cword=CURRENT-1

 	if (( $+functions[__${service}_zsh_main] )); then
 		__${service}_zsh_main
 	elif (( $+functions[__${service}_main] )); then
 		emulate ksh -c __${service}_main
 	elif (( $+functions[_${service}] )); then
 		emulate ksh -c _${service}
 	elif ((	$+functions[_${service//-/_}] )); then
 		emulate ksh -c _${service//-/_}
 	fi

 	let _ret && _default && _ret=0
 	return _ret
 }

 _git
	#compdef git gitk

	# zsh completion wrapper for git
	#
	# Copyright (c) 2012-2020 Felipe Contreras <felipe.contreras@gmail.com>
	#
	# The recommended way to install this script is to make a copy of it as a
	# file named '_git' inside any directory in your fpath.
	#
	# For example, create a directory '~/.zsh/', copy this file to '~/.zsh/_git',
	# and then add the following to your ~/.zshrc file:
	#
	# fpath=(~/.zsh $fpath)
	#
	# You need git's bash completion script installed. By default bash-completion's
	# location will be used (e.g. pkg-config --variable=completionsdir bash-completion).
	#
	# If your bash completion script is somewhere else, you can specify the
	# location in your ~/.zshrc:
	#
	# zstyle ':completion:::git:*' script ~/.git-completion.bash
	#

	zstyle -T ':completion:::git:*' tag-order && \
	zstyle ':completion:::git:*' tag-order 'common-commands'

	zstyle -s ":completion:::git:*" script script
	if [ -z "$script" ]; then
	local -a locations
	local e bash_completion

	bash_completion=$(pkg-config --variable=completionsdir bash-completion 2>/dev/null) \|\|
	bash_completion='/usr/share/bash-completion/completions/'

	locations=(
	"$(dirname ${funcsourcetrace[1]%:*})"/git-completion.bash
	"$HOME/.local/share/bash-completion/completions/git"
	"$bash_completion/git"
	'/etc/bash_completion.d/git' # old debian
	)
	for e in $locations; do
	test -f $e && script="$e" && break
	done
	fi

	local old_complete="$functions[complete]"
	functions[complete]=:
	GIT_SOURCING_ZSH_COMPLETION=y . "$script"
	functions[complete]="$old_complete"

	__gitcomp ()
	{
	emulate -L zsh

	local cur_="${3-$cur}"

	case "$cur_" in
	--*=)
	;;
	--no-*)
	local c IFS=$' \t\n'
	local -a array
	for c in ${=1}; do
	if [[ $c == "--" ]]; then
	continue
	fi
	c="$c${4-}"
	case $c in
	--=\|.) ;;
	*) c="$c " ;;
	esac
	array+=("$c")
	done
	compset -P '*[=:]'
	compadd -Q -S '' -p "${2-}" -a -- array && _ret=0
	;;
	*)
	local c IFS=$' \t\n'
	local -a array
	for c in ${=1}; do
	if [[ $c == "--" ]]; then
	c="--no-...${4-}"
	array+=("$c ")
	break
	fi
	c="$c${4-}"
	case $c in
	--=\|.) ;;
	*) c="$c " ;;
	esac
	array+=("$c")
	done
	compset -P '*[=:]'
	compadd -Q -S '' -p "${2-}" -a -- array && _ret=0
	;;
	esac
	}

	__gitcomp_direct ()
	{
	emulate -L zsh

	compset -P '*[=:]'
	compadd -Q -S '' -- ${(f)1} && _ret=0
	}

	__gitcomp_nl ()
	{
	emulate -L zsh

	compset -P '*[=:]'
	compadd -Q -S "${4- }" -p "${2-}" -- ${(f)1} && _ret=0
	}

	__gitcomp_file ()
	{
	emulate -L zsh

	compset -P '*[=:]'
	compadd -f -p "${2-}" -- ${(f)1} && _ret=0
	}

	__gitcomp_direct_append ()
	{
	__gitcomp_direct "$@"
	}

	__gitcomp_nl_append ()
	{
	__gitcomp_nl "$@"
	}

	__gitcomp_file_direct ()
	{
	__gitcomp_file "$1" ""
	}

	_git_zsh ()
	{
	__gitcomp "v1.1"
	}

	__git_complete_command ()
	{
	emulate -L zsh

	local command="$1"
	local completion_func="_git_${command//-/_}"
	if (( $+functions[$completion_func] )); then
	emulate ksh -c $completion_func
	return 0
	else
	return 1
	fi
	}

	__git_zsh_bash_func ()
	{
	emulate -L ksh

	local command=$1

	__git_complete_command "$command" && return

	local expansion=$(__git_aliased_command "$command")
	if [ -n "$expansion" ]; then
	words[1]=$expansion
	__git_complete_command "$expansion"
	fi
	}

	__git_zsh_cmd_common ()
	{
	local -a list
	list=(
	add:'add file contents to the index'
	bisect:'find by binary search the change that introduced a bug'
	branch:'list, create, or delete branches'
	checkout:'checkout a branch or paths to the working tree'
	clone:'clone a repository into a new directory'
	commit:'record changes to the repository'
	diff:'show changes between commits, commit and working tree, etc'
	fetch:'download objects and refs from another repository'
	grep:'print lines matching a pattern'
	init:'create an empty Git repository or reinitialize an existing one'
	log:'show commit logs'
	merge:'join two or more development histories together'
	mv:'move or rename a file, a directory, or a symlink'
	pull:'fetch from and merge with another repository or a local branch'
	push:'update remote refs along with associated objects'
	rebase:'forward-port local commits to the updated upstream head'
	reset:'reset current HEAD to the specified state'
	restore:'restore working tree files'
	rm:'remove files from the working tree and from the index'
	show:'show various types of objects'
	status:'show the working tree status'
	switch:'switch branches'
	tag:'create, list, delete or verify a tag object signed with GPG')
	_describe -t common-commands 'common commands' list && _ret=0
	}

	__git_zsh_cmd_alias ()
	{
	local -a list
	list=(${${(0)"$(git config -z --get-regexp '^alias\.*')"}#alias.})
	list=(${(f)"$(printf "%s:alias for '%s'\n" ${(f@)list})"})
	_describe -t alias-commands 'aliases' list && _ret=0
	}

	__git_zsh_cmd_all ()
	{
	local -a list
	emulate ksh -c __git_compute_all_commands
	list=( ${=__git_all_commands} )
	_describe -t all-commands 'all commands' list && _ret=0
	}

	__git_zsh_main ()
	{
	local curcontext="$curcontext" state state_descr line
	typeset -A opt_args
	local -a orig_words

	orig_words=( ${words[@]} )

	_arguments -C \
	'(-p --paginate --no-pager)'{-p,--paginate}'[pipe all output into ''less'']' \
	'(-p --paginate)--no-pager[do not pipe git output into a pager]' \
	'--git-dir=-[set the path to the repository]: :_directories' \
	'--bare[treat the repository as a bare repository]' \
	'(- :)--version[prints the git suite version]' \
	'--exec-path=-[path to where your core git programs are installed]:: :_directories' \
	'--html-path[print the path where git''s HTML documentation is installed]' \
	'--info-path[print the path where the Info files are installed]' \
	'--man-path[print the manpath (see `man(1)`) for the man pages]' \
	'--work-tree=-[set the path to the working tree]: :_directories' \
	'--namespace=-[set the git namespace]' \
	'--no-replace-objects[do not use replacement refs to replace git objects]' \
	'(- :)--help[prints the synopsis and a list of the most commonly used commands]: :->arg' \
	'(-): :->command' \
	'(-)*:: :->arg' && return

	case $state in
	(command)
	_tags common-commands alias-commands all-commands
	while _tags; do
	_requested common-commands && __git_zsh_cmd_common
	_requested alias-commands && __git_zsh_cmd_alias
	_requested all-commands && __git_zsh_cmd_all
	let _ret \|\| break
	done
	;;
	(arg)
	local command="${words[1]}" __git_dir __git_cmd_idx=1

	if (( $+opt_args[--bare] )); then
	__git_dir='.'
	else
	__git_dir=${opt_args[--git-dir]}
	fi

	(( $+opt_args[--help] )) && command='help'

	words=( ${orig_words[@]} )

	__git_zsh_bash_func $command
	;;
	esac
	}

	_git ()
	{
	local _ret=1
	local cur cword prev

	cur=${words[CURRENT]}
	prev=${words[CURRENT-1]}
	let cword=CURRENT-1

	if (( $+functions[__${service}_zsh_main] )); then
	__${service}_zsh_main
	elif (( $+functions[__${service}_main] )); then
	emulate ksh -c __${service}_main
	elif (( $+functions[_${service}] )); then
	emulate ksh -c _${service}
	elif (( $+functions[_${service//-/_}] )); then
	emulate ksh -c _${service//-/_}
	fi

	let _ret && _default && _ret=0
	return _ret
	}

	_git