feat(scripts): add git-all in fish

scripts/git-all.fish

@@ -0,0 +1,66 @@
+#!/usr/bin/env fish
+
+argparse -s \
+	'c/command=' \
+	'D/debug' \
+	'e/executor=' \
+	'p/path=+' \
+	'r/recursive' \
+	't/threads=' \
+-- $argv
+or return
+
+if ! set -q '_flag_executor'
+	set '_flag_executor' 'parallel'
+end
+if ! set -q '_flag_path'
+	set '_flag_path' "$PWD"
+end
+if ! set -q '_flag_recursive'
+	set '_flag_recursive' '-r'
+end
+if ! set -q '_flag_threads'
+	set '_flag_threads' (nproc)
+end
+
+if set -q '_flag_debug'
+	echo "
+		command: $_flag_command
+		debug: $_flag_debug
+		executor: $_flag_executor
+		path: $_flag_path
+		recursive: $_flag_recursive
+		threads: $_flag_threads
+		argv: $argv
+	" | column -t
+end
+
+if test "$_flag_recursive" = '-r' || test "$_flag_recursive" = '--recursive'
+	if set -q '_flag_debug'
+		echo 'DEBUG: recursive test returned true'
+	end
+	set repositories (find $_flag_path -type 'd' -name '.git' -exec dirname {} +)
+else
+	if set -q '_flag_debug'
+		echo 'DEBUG: recursive test returned false'
+	end
+	set repositories $_flag_path
+end
+
+if set -q '_flag_debug'
+	echo "DEBUG: repositories: $repositories"
+end
+
+switch $_flag_executor
+	case 'parallel'
+		if ! which -s parallel
+			echo "Error: GNU parallel not found" >&2
+			return
+		end
+		parallel --color-failed -j "$_flag_threads" --tagstring "{/}" "git -C {} $_flag_command" ::: $repositories
+	case 'xargs'
+		echo  $repositories | xargs -tP "$_flag_threads" -I{} git -C "{}" $_flag_command
+	case '*'
+		echo "Error: $runner not supported" >&2
+		return
+end