completion: update git completion to git v2.30.0

Copied from src/git/contrib/completition/git-completion.{bash,zsh}

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>

2 files changed, 553 insertions, 252 deletions

diff --git a/.zsh/completion/git-completion.bash b/.zsh/completion/git-completion.bash
index 00fbe6c..463a312 100644
--- a/.zsh/completion/git-completion.bash
+++ b/.zsh/completion/git-completion.bash
@@ -39,6 +39,11 @@
 #     When set to "1", do not include "DWIM" suggestions in git-checkout
 #     and git-switch completion (e.g., completing "foo" when "origin/foo"
 #     exists).
+#
+#   GIT_COMPLETION_SHOW_ALL
+#
+#     When set to "1" suggest all options, including options which are
+#     typically hidden (e.g. '--allow-empty' for 'git commit').
 
 case "$COMP_WORDBREAKS" in
 *:*) : great ;;
@@ -50,7 +55,7 @@ esac
 # variable.
 __git_find_repo_path ()
 {
-	if [ -n "$__git_repo_path" ]; then
+	if [ -n "${__git_repo_path-}" ]; then
 		# we already know where it is
 		return
 	fi
@@ -301,6 +306,19 @@ __gitcomp_direct ()
 	COMPREPLY=($1)
 }
 
+# Similar to __gitcomp_direct, but appends to COMPREPLY instead.
+# Callers must take care of providing only words that match the current word
+# to be completed and adding any prefix and/or suffix (trailing space!), if
+# necessary.
+# 1: List of newline-separated matching completion words, complete with
+#    prefix and suffix.
+__gitcomp_direct_append ()
+{
+	local IFS=$'\n'
+
+	COMPREPLY+=($1)
+}
+
 __gitcompappend ()
 {
 	local x i=${#COMPREPLY[@]}
@@ -373,7 +391,7 @@ __gitcomp ()
 # Clear the variables caching builtins' options when (re-)sourcing
 # the completion script.
 if [[ -n ${ZSH_VERSION-} ]]; then
-	unset $(set |sed -ne 's/^\(__gitcomp_builtin_[a-zA-Z0-9_][a-zA-Z0-9_]*\)=.*/\1/p') 2>/dev/null
+	unset ${(M)${(k)parameters[@]}:#__gitcomp_builtin_*} 2>/dev/null
 else
 	unset $(compgen -v __gitcomp_builtin_)
 fi
@@ -391,17 +409,23 @@ __gitcomp_builtin ()
 	# spaces must be replaced with underscore for multi-word
 	# commands, e.g. "git remote add" becomes remote_add.
 	local cmd="$1"
-	local incl="$2"
-	local excl="$3"
+	local incl="${2-}"
+	local excl="${3-}"
 
 	local var=__gitcomp_builtin_"${cmd/-/_}"
 	local options
-	eval "options=\$$var"
+	eval "options=\${$var-}"
 
 	if [ -z "$options" ]; then
+		local completion_helper
+		if [ "$GIT_COMPLETION_SHOW_ALL" = "1" ]; then
+			completion_helper="--git-completion-helper-all"
+		else
+			completion_helper="--git-completion-helper"
+		fi
 		# leading and trailing spaces are significant to make
 		# option removal work correctly.
-		options=" $incl $(__git ${cmd/_/ } --git-completion-helper) " || return
+		options=" $incl $(__git ${cmd/_/ } $completion_helper) " || return
 
 		for i in $excl; do
 			options="${options/ $i / }"
@@ -504,7 +528,7 @@ __git_index_files ()
 {
 	local root="$2" match="$3"
 
-	__git_ls_files_helper "$root" "$1" "$match" |
+	__git_ls_files_helper "$root" "$1" "${match:-?}" |
 	awk -F / -v pfx="${2//\\/\\\\}" '{
 		paths[$1] = 1
 	}
@@ -550,7 +574,7 @@ __git_index_files ()
 						 esc_idx, 1)
 			} else if (esc == "n") {
 				# Uh-oh, a newline character.
-				# We cant reliably put a pathname
+				# We cannot reliably put a pathname
 				# containing a newline into COMPREPLY,
 				# and the newline would create a mess.
 				# Skip this path.
@@ -565,7 +589,7 @@ __git_index_files ()
 			}
 		}
 		# Drop closing double quote, if there is one.
-		# (There isnt any if this is a directory, as it was
+		# (There is not any if this is a directory, as it was
 		# already stripped with the trailing path components.)
 		if (substr(p, length(p), 1) == "\"")
 			out = out substr(p, 1, length(p) - 1)
@@ -611,6 +635,19 @@ __git_heads ()
 			"refs/heads/$cur_*" "refs/heads/$cur_*/**"
 }
 
+# Lists branches from remote repositories.
+# 1: A prefix to be added to each listed branch (optional).
+# 2: List only branches matching this word (optional; list all branches if
+#    unset or empty).
+# 3: A suffix to be appended to each listed branch (optional).
+__git_remote_heads ()
+{
+	local pfx="${1-}" cur_="${2-}" sfx="${3-}"
+
+	__git for-each-ref --format="${pfx//\%/%%}%(refname:strip=2)$sfx" \
+			"refs/remotes/$cur_*" "refs/remotes/$cur_*/**"
+}
+
 # Lists tags from the local repository.
 # Accepts the same positional parameters as __git_heads() above.
 __git_tags ()
@@ -621,6 +658,26 @@ __git_tags ()
 			"refs/tags/$cur_*" "refs/tags/$cur_*/**"
 }
 
+# List unique branches from refs/remotes used for 'git checkout' and 'git
+# switch' tracking DWIMery.
+# 1: A prefix to be added to each listed branch (optional)
+# 2: List only branches matching this word (optional; list all branches if
+#    unset or empty).
+# 3: A suffix to be appended to each listed branch (optional).
+__git_dwim_remote_heads ()
+{
+	local pfx="${1-}" cur_="${2-}" sfx="${3-}"
+	local fer_pfx="${pfx//\%/%%}" # "escape" for-each-ref format specifiers
+
+	# employ the heuristic used by git checkout and git switch
+	# Try to find a remote branch that cur_es the completion word
+	# but only output if the branch name is unique
+	__git for-each-ref --format="$fer_pfx%(refname:strip=3)$sfx" \
+		--sort="refname:strip=3" \
+		"refs/remotes/*/$cur_*" "refs/remotes/*/$cur_*/**" | \
+	uniq -u
+}
+
 # Lists refs from the local (by default) or from a remote repository.
 # It accepts 0, 1 or 2 arguments:
 # 1: The remote to list refs from (optional; ignored, if set but empty).
@@ -696,13 +753,7 @@ __git_refs ()
 		__git_dir="$dir" __git for-each-ref --format="$fer_pfx%($format)$sfx" \
 			"${refs[@]}"
 		if [ -n "$track" ]; then
-			# employ the heuristic used by git checkout
-			# Try to find a remote branch that matches the completion word
-			# but only output if the branch name is unique
-			__git for-each-ref --format="$fer_pfx%(refname:strip=3)$sfx" \
-				--sort="refname:strip=3" \
-				"refs/remotes/*/$match*" "refs/remotes/*/$match*/**" | \
-			uniq -u
+			__git_dwim_remote_heads "$pfx" "$match" "$sfx"
 		fi
 		return
 	fi
@@ -749,29 +800,51 @@ __git_refs ()
 # Usage: __git_complete_refs [<option>]...
 # --remote=<remote>: The remote to list refs from, can be the name of a
 #                    configured remote, a path, or a URL.
-# --track: List unique remote branches for 'git checkout's tracking DWIMery.
+# --dwim: List unique remote branches for 'git switch's tracking DWIMery.
 # --pfx=<prefix>: A prefix to be added to each ref.
 # --cur=<word>: The current ref to be completed.  Defaults to the current
 #               word to be completed.
 # --sfx=<suffix>: A suffix to be appended to each ref instead of the default
 #                 space.
+# --mode=<mode>: What set of refs to complete, one of 'refs' (the default) to
+#                complete all refs, 'heads' to complete only branches, or
+#                'remote-heads' to complete only remote branches. Note that
+#                --remote is only compatible with --mode=refs.
 __git_complete_refs ()
 {
-	local remote track pfx cur_="$cur" sfx=" "
+	local remote= dwim= pfx= cur_="$cur" sfx=" " mode="refs"
 
 	while test $# != 0; do
 		case "$1" in
 		--remote=*)	remote="${1##--remote=}" ;;
-		--track)	track="yes" ;;
+		--dwim)		dwim="yes" ;;
+		# --track is an old spelling of --dwim
+		--track)	dwim="yes" ;;
 		--pfx=*)	pfx="${1##--pfx=}" ;;
 		--cur=*)	cur_="${1##--cur=}" ;;
 		--sfx=*)	sfx="${1##--sfx=}" ;;
+		--mode=*)	mode="${1##--mode=}" ;;
 		*)		return 1 ;;
 		esac
 		shift
 	done
 
-	__gitcomp_direct "$(__git_refs "$remote" "$track" "$pfx" "$cur_" "$sfx")"
+	# complete references based on the specified mode
+	case "$mode" in
+		refs)
+			__gitcomp_direct "$(__git_refs "$remote" "" "$pfx" "$cur_" "$sfx")" ;;
+		heads)
+			__gitcomp_direct "$(__git_heads "$pfx" "$cur_" "$sfx")" ;;
+		remote-heads)
+			__gitcomp_direct "$(__git_remote_heads "$pfx" "$cur_" "$sfx")" ;;
+		*)
+			return 1 ;;
+	esac
+
+	# Append DWIM remote branch names if requested
+	if [ "$dwim" = "yes" ]; then
+		__gitcomp_direct_append "$(__git_dwim_remote_heads "$pfx" "$cur_" "$sfx")"
+	fi
 }
 
 # __git_refs2 requires 1 argument (to pass to __git_refs)
@@ -1047,37 +1120,72 @@ __git_pretty_aliases ()
 # __git_aliased_command requires 1 argument
 __git_aliased_command ()
 {
-	local word cmdline=$(__git config --get "alias.$1")
-	for word in $cmdline; do
-		case "$word" in
-		\!gitk|gitk)
-			echo "gitk"
-			return
-			;;
-		\!*)	: shell command alias ;;
-		-*)	: option ;;
-		*=*)	: setting env ;;
-		git)	: git itself ;;
-		\(\))   : skip parens of shell function definition ;;
-		{)	: skip start of shell helper function ;;
-		:)	: skip null command ;;
-		\'*)	: skip opening quote after sh -c ;;
-		*)
-			echo "$word"
+	local cur=$1 last list word cmdline
+
+	while [[ -n "$cur" ]]; do
+		if [[ "$list" == *" $cur "* ]]; then
+			# loop detected
 			return
-		esac
+		fi
+
+		cmdline=$(__git config --get "alias.$cur")
+		list=" $cur $list"
+		last=$cur
+		cur=
+
+		for word in $cmdline; do
+			case "$word" in
+			\!gitk|gitk)
+				cur="gitk"
+				break
+				;;
+			\!*)	: shell command alias ;;
+			-*)	: option ;;
+			*=*)	: setting env ;;
+			git)	: git itself ;;
+			\(\))   : skip parens of shell function definition ;;
+			{)	: skip start of shell helper function ;;
+			:)	: skip null command ;;
+			\'*)	: skip opening quote after sh -c ;;
+			*)
+				cur="$word"
+				break
+			esac
+		done
 	done
+
+	cur=$last
+	if [[ "$cur" != "$1" ]]; then
+		echo "$cur"
+	fi
 }
 
-# __git_find_on_cmdline requires 1 argument
+# Check whether one of the given words is present on the command line,
+# and print the first word found.
+#
+# Usage: __git_find_on_cmdline [<option>]... "<wordlist>"
+# --show-idx: Optionally show the index of the found word in the $words array.
 __git_find_on_cmdline ()
 {
-	local word subcommand c=1
+	local word c=1 show_idx
+
+	while test $# -gt 1; do
+		case "$1" in
+		--show-idx)	show_idx=y ;;
+		*)		return 1 ;;
+		esac
+		shift
+	done
+	local wordlist="$1"
+
 	while [ $c -lt $cword ]; do
-		word="${words[c]}"
-		for subcommand in $1; do
-			if [ "$subcommand" = "$word" ]; then
-				echo "$subcommand"
+		for word in $wordlist; do
+			if [ "$word" = "${words[c]}" ]; then
+				if [ -n "${show_idx-}" ]; then
+					echo "$c $word"
+				else
+					echo "$word"
+				fi
 				return
 			fi
 		done
@@ -1085,6 +1193,40 @@ __git_find_on_cmdline ()
 	done
 }
 
+# Similar to __git_find_on_cmdline, except that it loops backwards and thus
+# prints the *last* word found. Useful for finding which of two options that
+# supersede each other came last, such as "--guess" and "--no-guess".
+#
+# Usage: __git_find_last_on_cmdline [<option>]... "<wordlist>"
+# --show-idx: Optionally show the index of the found word in the $words array.
+__git_find_last_on_cmdline ()
+{
+	local word c=$cword show_idx
+
+	while test $# -gt 1; do
+		case "$1" in
+		--show-idx)	show_idx=y ;;
+		*)		return 1 ;;
+		esac
+		shift
+	done
+	local wordlist="$1"
+
+	while [ $c -gt 1 ]; do
+		((c--))
+		for word in $wordlist; do
+			if [ "$word" = "${words[c]}" ]; then
+				if [ -n "$show_idx" ]; then
+					echo "$c $word"
+				else
+					echo "$word"
+				fi
+				return
+			fi
+		done
+	done
+}
+
 # Echo the value of an option set on the command line or config
 #
 # $1: short option name
@@ -1180,6 +1322,7 @@ __git_count_arguments ()
 
 __git_whitespacelist="nowarn warn error error-all fix"
 __git_patchformat="mbox stgit stgit-series hg mboxrd"
+__git_showcurrentpatch="diff raw"
 __git_am_inprogress_options="--skip --continue --resolved --abort --quit --show-current-patch"
 
 _git_am ()
@@ -1198,6 +1341,10 @@ _git_am ()
 		__gitcomp "$__git_patchformat" "" "${cur##--patch-format=}"
 		return
 		;;
+	--show-current-patch=*)
+		__gitcomp "$__git_showcurrentpatch" "" "${cur##--show-current-patch=}"
+		return
+		;;
 	--*)
 		__gitcomp_builtin am "" \
 			"$__git_am_inprogress_options"
@@ -1334,10 +1481,73 @@ _git_bundle ()
 	esac
 }
 
+# Helper function to decide whether or not we should enable DWIM logic for
+# git-switch and git-checkout.
+#
+# To decide between the following rules in decreasing priority order:
+# - the last provided of "--guess" or "--no-guess" explicitly enable or
+#   disable completion of DWIM logic respectively.
+# - If checkout.guess is false, disable completion of DWIM logic.
+# - If the --no-track option is provided, take this as a hint to disable the
+#   DWIM completion logic
+# - If GIT_COMPLETION_CHECKOUT_NO_GUESS is set, disable the DWIM completion
+#   logic, as requested by the user.
+# - Enable DWIM logic otherwise.
+#
+__git_checkout_default_dwim_mode ()
+{
+	local last_option dwim_opt="--dwim"
+
+	if [ "${GIT_COMPLETION_CHECKOUT_NO_GUESS-}" = "1" ]; then
+		dwim_opt=""
+	fi
+
+	# --no-track disables DWIM, but with lower priority than
+	# --guess/--no-guess/checkout.guess
+	if [ -n "$(__git_find_on_cmdline "--no-track")" ]; then
+		dwim_opt=""
+	fi
+
+	# checkout.guess = false disables DWIM, but with lower priority than
+	# --guess/--no-guess
+	if [ "$(__git config --type=bool checkout.guess)" = "false" ]; then
+		dwim_opt=""
+	fi
+
+	# Find the last provided --guess or --no-guess
+	last_option="$(__git_find_last_on_cmdline "--guess --no-guess")"
+	case "$last_option" in
+		--guess)
+			dwim_opt="--dwim"
+			;;
+		--no-guess)
+			dwim_opt=""
+			;;
+	esac
+
+	echo "$dwim_opt"
+}
+
 _git_checkout ()
 {
 	__git_has_doubledash && return
 
+	local dwim_opt="$(__git_checkout_default_dwim_mode)"
+
+	case "$prev" in
+	-b|-B|--orphan)
+		# Complete local branches (and DWIM branch
+		# remote branch names) for an option argument
+		# specifying a new branch name. This is for
+		# convenience, assuming new branches are
+		# possibly based on pre-existing branch names.
+		__git_complete_refs $dwim_opt --mode="heads"
+		return
+		;;
+	*)
+		;;
+	esac
+
 	case "$cur" in
 	--conflict=*)
 		__gitcomp "diff3 merge" "" "${cur##--conflict=}"
@@ -1346,14 +1556,21 @@ _git_checkout ()
 		__gitcomp_builtin checkout
 		;;
 	*)
-		# check if --track, --no-track, or --no-guess was specified
-		# if so, disable DWIM mode
-		local flags="--track --no-track --no-guess" track_opt="--track"
-		if [ "$GIT_COMPLETION_CHECKOUT_NO_GUESS" = "1" ] ||
-		   [ -n "$(__git_find_on_cmdline "$flags")" ]; then
-			track_opt=''
+		# At this point, we've already handled special completion for
+		# the arguments to -b/-B, and --orphan. There are 3 main
+		# things left we can possibly complete:
+		# 1) a start-point for -b/-B, -d/--detach, or --orphan
+		# 2) a remote head, for --track
+		# 3) an arbitrary reference, possibly including DWIM names
+		#
+
+		if [ -n "$(__git_find_on_cmdline "-b -B -d --detach --orphan")" ]; then
+			__git_complete_refs --mode="refs"
+		elif [ -n "$(__git_find_on_cmdline "--track")" ]; then
+			__git_complete_refs --mode="remote-heads"
+		else
+			__git_complete_refs $dwim_opt --mode="refs"
 		fi
-		__git_complete_refs $track_opt
 		;;
 	esac
 }
@@ -1470,9 +1687,16 @@ __git_diff_algorithms="myers minimal patience histogram"
 
 __git_diff_submodule_formats="diff log short"
 
+__git_color_moved_opts="no default plain blocks zebra dimmed-zebra"
+
+__git_color_moved_ws_opts="no ignore-space-at-eol ignore-space-change
+			ignore-all-space allow-indentation-change"
+
 __git_diff_common_options="--stat --numstat --shortstat --summary
 			--patch-with-stat --name-only --name-status --color
 			--no-color --color-words --no-renames --check
+			--color-moved --color-moved= --no-color-moved
+			--color-moved-ws= --no-color-moved-ws
 			--full-index --binary --abbrev --diff-filter=
 			--find-copies-harder --ignore-cr-at-eol
 			--text --ignore-space-at-eol --ignore-space-change
@@ -1488,8 +1712,13 @@ __git_diff_common_options="--stat --numstat --shortstat --summary
 			--submodule --submodule= --ignore-submodules
 			--indent-heuristic --no-indent-heuristic
 			--textconv --no-textconv
+			--patch --no-patch
 "
 
+__git_diff_difftool_options="--cached --staged --pickaxe-all --pickaxe-regex
+			--base --ours --theirs --no-index --relative --merge-base
+			$__git_diff_common_options"
+
 _git_diff ()
 {
 	__git_has_doubledash && return
@@ -1503,11 +1732,16 @@ _git_diff ()
 		__gitcomp "$__git_diff_submodule_formats" "" "${cur##--submodule=}"
 		return
 		;;
+	--color-moved=*)
+		__gitcomp "$__git_color_moved_opts" "" "${cur##--color-moved=}"
+		return
+		;;
+	--color-moved-ws=*)
+		__gitcomp "$__git_color_moved_ws_opts" "" "${cur##--color-moved-ws=}"
+		return
+		;;
 	--*)
-		__gitcomp "--cached --staged --pickaxe-all --pickaxe-regex
-			--base --ours --theirs --no-index
-			$__git_diff_common_options
-			"
+		__gitcomp "$__git_diff_difftool_options"
 		return
 		;;
 	esac
@@ -1515,8 +1749,8 @@ _git_diff ()
 }
 
 __git_mergetools_common="diffuse diffmerge ecmerge emerge kdiff3 meld opendiff
-			tkdiff vimdiff gvimdiff xxdiff araxis p4merge bc
-			codecompare smerge
+			tkdiff vimdiff nvimdiff gvimdiff xxdiff araxis p4merge
+			bc codecompare smerge
 "
 
 _git_difftool ()
@@ -1529,11 +1763,7 @@ _git_difftool ()
 		return
 		;;
 	--*)
-		__gitcomp_builtin difftool "$__git_diff_common_options
-					--base --cached --ours --theirs
-					--pickaxe-all --pickaxe-regex
-					--relative --staged
-					"
+		__gitcomp_builtin difftool "$__git_diff_difftool_options"
 		return
 		;;
 	esac
@@ -1575,6 +1805,10 @@ _git_format_patch ()
 			" "" "${cur##--thread=}"
 		return
 		;;
+	--base=*|--interdiff=*|--range-diff=*)
+		__git_complete_refs --cur="${cur#--*=}"
+		return
+		;;
 	--*)
 		__gitcomp_builtin format-patch "$__git_format_patch_extra_options"
 		return
@@ -1595,7 +1829,7 @@ _git_fsck ()
 
 _git_gitk ()
 {
-	_gitk
+	__gitk_main
 }
 
 # Lists matching symbol names from a tag (as in ctags) file.
@@ -1749,7 +1983,7 @@ __git_log_shortlog_options="
 	--all-match --invert-grep
 "
 
-__git_log_pretty_formats="oneline short medium full fuller email raw format: mboxrd"
+__git_log_pretty_formats="oneline short medium full fuller reference email raw format: tformat: mboxrd"
 __git_log_date_formats="relative iso8601 iso8601-strict rfc2822 short local default raw unix format:"
 
 _git_log ()
@@ -1819,7 +2053,6 @@ _git_log ()
 			--no-walk --no-walk= --do-walk
 			--parents --children
 			--expand-tabs --expand-tabs= --no-expand-tabs
-			--patch
 			$merge
 			$__git_diff_common_options
 			--pickaxe-all --pickaxe-regex
@@ -2043,6 +2276,10 @@ _git_rebase ()
 		__gitcomp "$__git_whitespacelist" "" "${cur##--whitespace=}"
 		return
 		;;
+	--onto=*)
+		__git_complete_refs --cur="${cur##--onto=}"
+		return
+		;;
 	--*)
 		__gitcomp_builtin rebase "" \
 			"$__git_rebase_interactive_inprogress_options"
@@ -2174,6 +2411,22 @@ _git_status ()
 
 _git_switch ()
 {
+	local dwim_opt="$(__git_checkout_default_dwim_mode)"
+
+	case "$prev" in
+	-c|-C|--orphan)
+		# Complete local branches (and DWIM branch
+		# remote branch names) for an option argument
+		# specifying a new branch name. This is for
+		# convenience, assuming new branches are
+		# possibly based on pre-existing branch names.
+		__git_complete_refs $dwim_opt --mode="heads"
+		return
+		;;
+	*)
+		;;
+	esac
+
 	case "$cur" in
 	--conflict=*)
 		__gitcomp "diff3 merge" "" "${cur##--conflict=}"
@@ -2182,29 +2435,26 @@ _git_switch ()
 		__gitcomp_builtin switch
 		;;
 	*)
-		# check if --track, --no-track, or --no-guess was specified
-		# if so, disable DWIM mode
-		local track_opt="--track" only_local_ref=n
-		if [ "$GIT_COMPLETION_CHECKOUT_NO_GUESS" = "1" ] ||
-		   [ -n "$(__git_find_on_cmdline "--track --no-track --no-guess")" ]; then
-			track_opt=''
-		fi
-		# explicit --guess enables DWIM mode regardless of
-		# $GIT_COMPLETION_CHECKOUT_NO_GUESS
-		if [ -n "$(__git_find_on_cmdline "--guess")" ]; then
-			track_opt='--track'
-		fi
-		if [ -z "$(__git_find_on_cmdline "-d --detach")" ]; then
-			only_local_ref=y
-		else
-			# --guess --detach is invalid combination, no
-			# dwim will be done when --detach is specified
-			track_opt=
+		# Unlike in git checkout, git switch --orphan does not take
+		# a start point. Thus we really have nothing to complete after
+		# the branch name.
+		if [ -n "$(__git_find_on_cmdline "--orphan")" ]; then
+			return
 		fi
-		if [ $only_local_ref = y -a -z "$track_opt" ]; then
-			__gitcomp_direct "$(__git_heads "" "$cur" " ")"
+
+		# At this point, we've already handled special completion for
+		# -c/-C, and --orphan. There are 3 main things left to
+		# complete:
+		# 1) a start-point for -c/-C or -d/--detach
+		# 2) a remote head, for --track
+		# 3) a branch name, possibly including DWIM remote branches
+
+		if [ -n "$(__git_find_on_cmdline "-c -C -d --detach")" ]; then
+			__git_complete_refs --mode="refs"
+		elif [ -n "$(__git_find_on_cmdline "--track")" ]; then
+			__git_complete_refs --mode="remote-heads"
 		else
-			__git_complete_refs $track_opt
+			__git_complete_refs $dwim_opt --mode="heads"
 		fi
 		;;
 	esac
@@ -2611,6 +2861,13 @@ _git_reset ()
 
 _git_restore ()
 {
+	case "$prev" in
+	-s)
+		__git_complete_refs
+		return
+		;;
+	esac
+
 	case "$cur" in
 	--conflict=*)
 		__gitcomp "diff3 merge" "" "${cur##--conflict=}"
@@ -2691,9 +2948,17 @@ _git_show ()
 		__gitcomp "$__git_diff_submodule_formats" "" "${cur##--submodule=}"
 		return
 		;;
+	--color-moved=*)
+		__gitcomp "$__git_color_moved_opts" "" "${cur##--color-moved=}"
+		return
+		;;
+	--color-moved-ws=*)
+		__gitcomp "$__git_color_moved_ws_opts" "" "${cur##--color-moved-ws=}"
+		return
+		;;
 	--*)
 		__gitcomp "--pretty= --format= --abbrev-commit --no-abbrev-commit
-			--oneline --show-signature --patch
+			--oneline --show-signature
 			--expand-tabs --expand-tabs= --no-expand-tabs
 			$__git_diff_common_options
 			"
@@ -2714,12 +2979,33 @@ _git_show_branch ()
 	__git_complete_revlist
 }
 
+_git_sparse_checkout ()
+{
+	local subcommands="list init set disable"
+	local subcommand="$(__git_find_on_cmdline "$subcommands")"
+	if [ -z "$subcommand" ]; then
+		__gitcomp "$subcommands"
+		return
+	fi
+
+	case "$subcommand,$cur" in
+	init,--*)
+		__gitcomp "--cone"
+		;;
+	set,--*)
+		__gitcomp "--stdin"
+		;;
+	*)
+		;;
+	esac
+}
+
 _git_stash ()
 {
 	local save_opts='--all --keep-index --no-keep-index --quiet --patch --include-untracked'
 	local subcommands='push list show apply clear drop pop create branch'
 	local subcommand="$(__git_find_on_cmdline "$subcommands save")"
-	if [ -n "$(__git_find_on_cmdline "-p")" ]; then
+	if [ -z "$subcommand" -a -n "$(__git_find_on_cmdline "-p")" ]; then
 		subcommand="push"
 	fi
 	if [ -z "$subcommand" ]; then
@@ -2755,7 +3041,10 @@ _git_stash ()
 		list,--*)
 			__gitcomp "--name-status --oneline --patch-with-stat"
 			;;
-		show,--*|branch,--*)
+		show,--*)
+			__gitcomp "$__git_diff_common_options"
+			;;
+		branch,--*)
 			;;
 		branch,*)
 			if [ $cword -eq 3 ]; then
@@ -2779,7 +3068,7 @@ _git_submodule ()
 {
 	__git_has_doubledash && return
 
-	local subcommands="add status init deinit update set-branch summary foreach sync absorbgitdirs"
+	local subcommands="add status init deinit update set-branch set-url summary foreach sync absorbgitdirs"
 	local subcommand="$(__git_find_on_cmdline "$subcommands")"
 	if [ -z "$subcommand" ]; then
 		case "$cur" in
@@ -2843,6 +3132,7 @@ _git_svn ()
 			--log-window-size= --no-checkout --quiet
 			--repack-flags --use-log-author --localtime
 			--add-author-from
+			--recursive
 			--ignore-paths= --include-paths= $remote_opts
 			"
 		local init_opts="
@@ -2964,33 +3254,83 @@ _git_whatchanged ()
 	_git_log
 }
 
+__git_complete_worktree_paths ()
+{
+	local IFS=$'\n'
+	__gitcomp_nl "$(git worktree list --porcelain |
+		# Skip the first entry: it's the path of the main worktree,
+		# which can't be moved, removed, locked, etc.
+		sed -n -e '2,$ s/^worktree //p')"
+}
+
 _git_worktree ()
 {
 	local subcommands="add list lock move prune remove unlock"
-	local subcommand="$(__git_find_on_cmdline "$subcommands")"
-	if [ -z "$subcommand" ]; then
+	local subcommand subcommand_idx
+
+	subcommand="$(__git_find_on_cmdline --show-idx "$subcommands")"
+	subcommand_idx="${subcommand% *}"
+	subcommand="${subcommand#* }"
+
+	case "$subcommand,$cur" in
+	,*)
 		__gitcomp "$subcommands"
-	else
-		case "$subcommand,$cur" in
-		add,--*)
-			__gitcomp_builtin worktree_add
-			;;
-		list,--*)
-			__gitcomp_builtin worktree_list
-			;;
-		lock,--*)
-			__gitcomp_builtin worktree_lock
-			;;
-		prune,--*)
-			__gitcomp_builtin worktree_prune
-			;;
-		remove,--*)
-			__gitcomp "--force"
+		;;
+	*,--*)
+		__gitcomp_builtin worktree_$subcommand
+		;;
+	add,*)	# usage: git worktree add [<options>] <path> [<commit-ish>]
+		# Here we are not completing an --option, it's either the
+		# path or a ref.
+		case "$prev" in
+		-b|-B)	# Complete refs for branch to be created/reseted.
+			__git_complete_refs
 			;;
-		*)
+		-*)	# The previous word is an -o|--option without an
+			# unstuck argument: have to complete the path for
+			# the new worktree, so don't list anything, but let
+			# Bash fall back to filename completion.
+			;;
+		*)	# The previous word is not an --option, so it must
+			# be either the 'add' subcommand, the unstuck
+			# argument of an option (e.g. branch for -b|-B), or
+			# the path for the new worktree.
+			if [ $cword -eq $((subcommand_idx+1)) ]; then
+				# Right after the 'add' subcommand: have to
+				# complete the path, so fall back to Bash
+				# filename completion.
+				:
+			else
+				case "${words[cword-2]}" in
+				-b|-B)	# After '-b <branch>': have to
+					# complete the path, so fall back
+					# to Bash filename completion.
+					;;
+				*)	# After the path: have to complete
+					# the ref to be checked out.
+					__git_complete_refs
+					;;
+				esac
+			fi
 			;;
 		esac
-	fi
+		;;
+	lock,*|remove,*|unlock,*)
+		__git_complete_worktree_paths
+		;;
+	move,*)
+		if [ $cword -eq $((subcommand_idx+1)) ]; then
+			# The first parameter must be an existing working
+			# tree to be moved.
+			__git_complete_worktree_paths
+		else
+			# The second parameter is the destination: it could
+			# be any path, so don't list anything, but let Bash
+			# fall back to filename completion.
+			:
+		fi
+		;;
+	esac
 }
 
 __git_complete_common () {
@@ -3062,7 +3402,7 @@ __git_main ()
 		((c++))
 	done
 
-	if [ -z "$command" ]; then
+	if [ -z "${command-}" ]; then
 		case "$prev" in
 		--git-dir|-C|--work-tree)
 			# these need a path argument, let's fall back to
@@ -3097,7 +3437,7 @@ __git_main ()
 			"
 			;;
 		*)
-			if test -n "$GIT_TESTING_PORCELAIN_COMMAND_LIST"
+			if test -n "${GIT_TESTING_PORCELAIN_COMMAND_LIST-}"
 			then
 				__gitcomp "$GIT_TESTING_PORCELAIN_COMMAND_LIST"
 			else
@@ -3141,88 +3481,8 @@ __gitk_main ()
 	__git_complete_revlist
 }
 
-if [[ -n ${ZSH_VERSION-} ]] &&
-   # Don't define these functions when sourced from 'git-completion.zsh',
-   # it has its own implementations.
-   [[ -z ${GIT_SOURCING_ZSH_COMPLETION-} ]]; then
-	echo "WARNING: this script is deprecated, please see git-completion.zsh" 1>&2
-
-	autoload -U +X compinit && compinit
-
-	__gitcomp ()
-	{
-		emulate -L zsh
-
-		local cur_="${3-$cur}"
-
-		case "$cur_" in
-		--*=)
-			;;
-		*)
-			local c IFS=$' \t\n'
-			local -a array
-			for c in ${=1}; do
-				c="$c${4-}"
-				case $c in
-				--*=*|*.) ;;
-				*) c="$c " ;;
-				esac
-				array[${#array[@]}+1]="$c"
-			done
-			compset -P '*[=:]'
-			compadd -Q -S '' -p "${2-}" -a -- array && _ret=0
-			;;
-		esac
-	}
-
-	__gitcomp_direct ()
-	{
-		emulate -L zsh
-
-		local IFS=$'\n'
-		compset -P '*[=:]'
-		compadd -Q -- ${=1} && _ret=0
-	}
-
-	__gitcomp_nl ()
-	{
-		emulate -L zsh
-
-		local IFS=$'\n'
-		compset -P '*[=:]'
-		compadd -Q -S "${4- }" -p "${2-}" -- ${=1} && _ret=0
-	}
-
-	__gitcomp_file_direct ()
-	{
-		emulate -L zsh
-
-		local IFS=$'\n'
-		compset -P '*[=:]'
-		compadd -f -- ${=1} && _ret=0
-	}
-
-	__gitcomp_file ()
-	{
-		emulate -L zsh
-
-		local IFS=$'\n'
-		compset -P '*[=:]'
-		compadd -p "${2-}" -f -- ${=1} && _ret=0
-	}
-
-	_git ()
-	{
-		local _ret=1 cur cword prev
-		cur=${words[CURRENT]}
-		prev=${words[CURRENT-1]}
-		let cword=CURRENT-1
-		emulate ksh -c __${service}_main
-		let _ret && _default && _ret=0
-		return _ret
-	}
-
-	compdef _git git gitk
+if [[ -n ${ZSH_VERSION-} && -z ${GIT_SOURCING_ZSH_COMPLETION-} ]]; then
+	echo "ERROR: this script is obsolete, please see git-completion.zsh" 1>&2
 	return
 fi
 
@@ -3244,18 +3504,6 @@ __git_complete ()
 		|| complete -o default -o nospace -F $wrapper $1
 }
 
-# wrapper for backwards compatibility
-_git ()
-{
-	__git_wrap__git_main
-}
-
-# wrapper for backwards compatibility
-_gitk ()
-{
-	__git_wrap__gitk_main
-}
-
 __git_complete git __git_main
 __git_complete gitk __gitk_main
 
@@ -3263,6 +3511,6 @@ __git_complete gitk __gitk_main
 # when the user has tab-completed the executable name and consequently
 # included the '.exe' suffix.
 #
-if [ Cygwin = "$(uname -o 2>/dev/null)" ]; then
-__git_complete git.exe __git_main
+if [ "$OSTYPE" = cygwin ]; then
+	__git_complete git.exe __git_main
 fi
diff --git a/.zsh/completion/git-completion.zsh b/.zsh/completion/git-completion.zsh
index 300ffeb..6c56296 100644
--- a/.zsh/completion/git-completion.zsh
+++ b/.zsh/completion/git-completion.zsh
@@ -2,26 +2,24 @@
 
 # zsh completion wrapper for git
 #
-# Copyright (c) 2012-2013 Felipe Contreras <felipe.contreras@gmail.com>
+# Copyright (c) 2012-2020 Felipe Contreras <felipe.contreras@gmail.com>
 #
-# You need git's bash completion script installed somewhere, by default it
-# would be the location bash-completion uses.
+# 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.
 #
-# If your script is somewhere else, you can configure it on your ~/.zshrc:
+# For example, create a directory '~/.zsh/', copy this file to '~/.zsh/_git',
+# and then add the following to your ~/.zshrc file:
 #
-#  zstyle ':completion:*:*:git:*' script ~/.git-completion.zsh
+#  fpath=(~/.zsh $fpath)
 #
-# The recommended way to install this script is to make a copy of it in
-# ~/.zsh/ directory as ~/.zsh/git-completion.zsh and then add the following
-# to your ~/.zshrc file:
+# 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
 #
-#  fpath=(~/.zsh $fpath)
-
-complete ()
-{
-	# do nothing
-	return 0
-}
 
 zstyle -T ':completion:*:*:git:*' tag-order && \
 	zstyle ':completion:*:*:git:*' tag-order 'common-commands'
@@ -29,15 +27,26 @@ zstyle -T ':completion:*:*:git:*' tag-order && \
 zstyle -s ":completion:*:*:git:*" script script
 if [ -z "$script" ]; then
 	local -a locations
-	local e
+	local e bash_completion
+
+	bash_completion=$(pkg-config --variable=completionsdir bash-completion 2>/dev/null) ||
+		bash_completion='/usr/share/bash-completion/completions/'
+
 	locations=(
-		'/etc/bash_completion.d/git' # fedora, old debian
+		"$(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 ()
 {
@@ -48,13 +57,35 @@ __gitcomp ()
 	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")
@@ -69,44 +100,58 @@ __gitcomp_direct ()
 {
 	emulate -L zsh
 
-	local IFS=$'\n'
 	compset -P '*[=:]'
-	compadd -Q -- ${=1} && _ret=0
+	compadd -Q -S '' -- ${(f)1} && _ret=0
 }
 
 __gitcomp_nl ()
 {
 	emulate -L zsh
 
-	local IFS=$'\n'
 	compset -P '*[=:]'
-	compadd -Q -S "${4- }" -p "${2-}" -- ${=1} && _ret=0
+	compadd -Q -S "${4- }" -p "${2-}" -- ${(f)1} && _ret=0
 }
 
-__gitcomp_nl_append ()
+__gitcomp_file ()
 {
 	emulate -L zsh
 
-	local IFS=$'\n'
-	compadd -Q -S "${4- }" -p "${2-}" -- ${=1} && _ret=0
+	compset -P '*[=:]'
+	compadd -f -p "${2-}" -- ${(f)1} && _ret=0
+}
+
+__gitcomp_direct_append ()
+{
+	__gitcomp_direct "$@"
+}
+
+__gitcomp_nl_append ()
+{
+	__gitcomp_nl "$@"
 }
 
 __gitcomp_file_direct ()
 {
-	emulate -L zsh
+	__gitcomp_file "$1" ""
+}
 
-	local IFS=$'\n'
-	compset -P '*[=:]'
-	compadd -f -- ${=1} && _ret=0
+_git_zsh ()
+{
+	__gitcomp "v1.1"
 }
 
-__gitcomp_file ()
+__git_complete_command ()
 {
 	emulate -L zsh
 
-	local IFS=$'\n'
-	compset -P '*[=:]'
-	compadd -p "${2-}" -f -- ${=1} && _ret=0
+	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 ()
@@ -115,14 +160,12 @@ __git_zsh_bash_func ()
 
 	local command=$1
 
-	local completion_func="_git_${command//-/_}"
-	declare -f $completion_func >/dev/null && $completion_func && return
+	__git_complete_command "$command" && return
 
 	local expansion=$(__git_aliased_command "$command")
 	if [ -n "$expansion" ]; then
 		words[1]=$expansion
-		completion_func="_git_${expansion//-/_}"
-		declare -f $completion_func >/dev/null && $completion_func
+		__git_complete_command "$expansion"
 	fi
 }
 
@@ -147,9 +190,11 @@ __git_zsh_cmd_common ()
 	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
 }
@@ -157,8 +202,9 @@ __git_zsh_cmd_common ()
 __git_zsh_cmd_alias ()
 {
 	local -a list
-	list=(${${${(0)"$(git config -z --get-regexp '^alias\.')"}#alias.}%$'\n'*})
-	_describe -t alias-commands 'aliases' list $* && _ret=0
+	list=(${${(0)"$(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 ()
@@ -196,10 +242,13 @@ __git_zsh_main ()
 
 	case $state in
 	(command)
-		_alternative \
-                         'alias-commands:alias:__git_zsh_cmd_alias' \
-                         'common-commands:common:__git_zsh_cmd_common' \
-                         'all-commands:all:__git_zsh_cmd_all' && _ret=0
+		_tags common-commands alias-commands all-commands
+		while _tags; do
+			_requested common-commands && __git_zsh_cmd_common
+			_requested alias-commands && __git_zsh_cmd_alias
+			_requested all-commands && __git_zsh_cmd_all
+			let _ret || break
+		done
 		;;
 	(arg)
 		local command="${words[1]}" __git_dir
@@ -230,8 +279,12 @@ _git ()
 
 	if (( $+functions[__${service}_zsh_main] )); then
 		__${service}_zsh_main
-	else
+	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