feat(wsl): simplify mkln script

1 files changed, 100 insertions, 140 deletions

diff --git a/wsl/.local/bin/mkln.sh b/wsl/.local/bin/mkln.sh
index 60fd719..93f78d6 100755
--- a/wsl/.local/bin/mkln.sh
+++ b/wsl/.local/bin/mkln.sh
@@ -8,198 +8,158 @@ short='hvqfn'
 eval set -- "$(getopt -o $short -l $long -n "$SCRIPT" -- "$@")"
 
 help() {
-    cat <<-EOF
-$SCRIPT
-Toby Vincent <tobyv13@gmail.com>
-
-$SCRIPT
-    Creates symbolic links (for files) or junctions (for directories) from the
-    windows filesystem to the WSL2 instance using mklink.exe.
-
-USAGE:
-    $SCRIPT [OPTIONS] <SOURCE> [TARGET]
-
-OPTIONS:
-    -h, --help      Show this message
-    -v, --verbose   Show more output
-    -q, --quiet     Suppress all output
-    -f, --force     Overwrite items
-    -n, --dry-run   Write output of commands with running them.
-
-ARGS:
-    SOURCE (required)
-        Path to the source file or directory the link should point to.
-
-    TARGET (optional)
-        Path to the location to create the link. [Default: $PWD]
-EOF
+	cat <<-EOF
+		$SCRIPT
+		Toby Vincent <tobyv13@gmail.com>
+
+		$SCRIPT
+		    Creates symbolic links (for files) or junctions (for directories) from the
+		    windows filesystem to the WSL2 instance using mklink.exe.
+
+		USAGE:
+		    $SCRIPT [OPTIONS] <SOURCE> [TARGET]
+
+		OPTIONS:
+		    -h, --help      Show this message
+		    -v, --verbose   Show more output
+		    -q, --quiet     Suppress all output
+		    -f, --force     Overwrite items
+		    -n, --dry-run   Write output of commands with running them.
+
+		ARGS:
+		    SOURCE (required)
+		        Path to the source file or directory the link should point to.
+
+		    TARGET (optional)
+		        Path to the location to create the link. [Default: $PWD]
+	EOF
 }
 
 say() {
-  if ! $quiet; then
-    printf "%s: %s\n" "$SCRIPT" "$@"
-  fi
+	if ! $quiet; then
+		printf "%s: %s\n" "$SCRIPT" "$@"
+	fi
 }
 
 say_verbose() {
-  if $verbose; then
-    say "$@"
-  fi
+	if $verbose; then
+		say "$@"
+	fi
 }
 
 say_err() {
-  say "$@" >&2
+	say "$@" >&2
 }
 
 err() {
-  # shellcheck disable=SC2145
-  say_err "ERROR: $@"
-  exit 1
+	# shellcheck disable=SC2145
+	say_err "ERROR: $@"
+	exit 1
 }
 
 err_help() {
-  help
-  err "$*"
-}
-
-run() {
-  if $is_dry_run; then
-    say "DRYRUN: $*"
-    return 0
-  fi
-  
-  say_verbose "running: $*"
-
-  if $quiet; then
-    "$@" &>/dev/null
-  else
-    say "$("$@")"
-  fi
+	help
+	err "$*"
 }
 
 need() {
-  for cmd in "$@"; do
-    if ! command -v "$cmd" >/dev/null 2>&1; then
-      err "need $cmd (command not found)"
-    fi
-  done
+	for cmd in "$@"; do
+		if ! command -v "$cmd" >/dev/null 2>&1; then
+			err "need $cmd (command not found)"
+		fi
+	done
 }
 
 trg=$PWD
 verbose=false
 quiet=false
 force=false
-is_dry_run=false
 while true; do
-  case "$1" in
-    -h | --help)
-      help
-      exit 0
-    ;;
-    -v | --verbose)
-      verbose=true
-      shift
-    ;;
-    -q | --quiet)
-      quiet=true
-      shift
-    ;;
-    -f | --force)
-      force=true
-      shift
-    ;;
-    -n | --dry-run)
-      is_dry_run=true
-      shift
-    ;;
-    --)
-      shift
-      break
-    ;;
-    *)
-      break
-    ;;
-  esac
+	case "$1" in
+	-h | --help)
+		help
+		exit 0
+		;;
+	-v | --verbose)
+		verbose=true
+		shift
+		;;
+	-q | --quiet)
+		quiet=true
+		shift
+		;;
+	-f | --force)
+		force=true
+		shift
+		;;
+	--)
+		shift
+		break
+		;;
+	*)
+		break
+		;;
+	esac
 done
 
 need powershell.exe
 need realpath
 
 case "$#" in
-  0) err_help "must provide at least 1 argument";;
-  1) src="$1"; trg="$PWD"; shift;;
-  2) src="$1"; trg="$2"; shift 2;;
-  *) err_help "too many arguments"
+0) err_help "must provide at least 1 argument" ;;
+1)
+	src="$1"
+	trg="$PWD"
+	shift
+	;;
+2)
+	src="$1"
+	trg="$2"
+	shift 2
+	;;
+*) err_help "too many arguments" ;;
 esac
 
 while test -L "$src"; do
-  tmp="$src"
-  src=$(realpath "$src")
-  say_verbose "resolved symbolic link $tmp -> $src"
+	tmp="$src"
+	src=$(realpath "$src")
+	say_verbose "resolved symbolic link $tmp -> $src"
 done
 
 if ! test -e "$src"; then
-  err "$src does not exist."
+	err "$src does not exist."
 fi
 
 if test -d "$src"; then
-  say_verbose "$src is a directory. Switching to directory symbolic link."
-  args='/D'
+	say_verbose "$src is a directory. Switching to directory symbolic link."
+	args='/D'
 fi
 
 trg_name=$(basename "$trg")
 trg_dir=$(dirname "$trg")
 
+say_verbose "linking $src -> $trg"
+
 if ! test -d "$trg_dir"; then
-  mkdir -p "$trg_dir"
-  say_verbose "created directory $trg_dir"
+	mkdir -p "$trg_dir"
+	say_verbose "created directory $trg_dir"
 fi
 
 win_src=$(wslpath -w "$src")
 win_trg=$(wslpath -w "$trg_dir")\\"$trg_name"
 
-old_trg="$(powershell.exe "(Get-Item $win_trg).FullName" 2>/dev/null)"
-old_src="$(powershell.exe "(Get-Item $win_trg).Target" 2>/dev/null)"
+# UNC\wsl$\Arch\home\tobyv\.dotfiles\alacritty\.config\alacritty\alacritty.yml
+# \\wsl.localhost\Arch\home\tobyv\.dotfiles\alacritty\.config\alacritty\alacritty.yml
 
-old_src="${old_src/*wsl$/}"
-new_src="${win_src/*wsl$/}"
-
-if ! $force && test "${old_src#*"$new_src"}" != "$old_src"; then
-  say_verbose "symbolic link already exists."
-  exit 0
-fi
+existing="$(powershell.exe "(Get-Item $win_trg).FullName" 2>/dev/null)"
 
-say_verbose "$(cat <<-EOF 
-linking:
-  WSL paths:
-    target: $trg
-    source: $src
-  Win paths: 
-    target: $win_trg
-    source: $win_src
-EOF
-)"
-
-if test "$old_trg" != ''; then
-  if $force; then
-    say_verbose "$(cat <<-EOF 
-$win_trg already exists. Overwriting.
-  target: $win_trg
-  source: $old_src
-EOF
-)"
-    rm -rf "$trg"
-  else
-    err "$(cat <<-EOF 
-$win_trg already exists.
-  Existing file: 
-    target: $win_trg
-    source: $old_src
-
-  Use -f or --force to overwrite.
-EOF
-)"
-  fi
+if test "$existing" != ''; then
+	if $force; then
+		say_verbose "$win_trg already exists. Overwriting."
+		rm -rf "$trg"
+	else
+		err "$win_trg already exists."
+	fi
 fi
 
-run powershell.exe "cd ~; cmd /c mklink $args $win_trg $win_src"
+powershell.exe "cd ~; cmd /c mklink $args $win_trg $win_src"