skull-squadron · June 21, 2025 17:19
diff --git a/demacl b/demacl
 #!/bin/bash
 # Free fucking beer license. It may break and you assume all responsibility.
 set -eEuo pipefail

 die() {
  echo >&2 "$@"
  exit 1
 }

 [[ $# = 1 ]] || die "$0 {target}  <-- missing file or directory to remove all xattrs from"
 target="$(/usr/bin/readlink -f "$1")"
 [[ -f "$target" || -d "$target" ]] || die "$0 {target}  <-- must be a file or a directory"
 prefix="$(/usr/bin/dirname "$target")/.$(/usr/bin/basename "$target")"
 new="$prefix.$$.new"
 orig="$prefix.$$.orig"
 lock="$prefix.macl-lock"

 # Remove stuff on normal or abnormal termination
 # $orig is not deleted here in case of error
 trap 'e=$?; trap - EXIT; /bin/rm -rf "$new" "$lock"; exit $e' EXIT

 # mkdir is atomic on macOS, and suffices when flock is unavailable
 if ! /bin/mkdir "$lock"; then
  echo >&2 "$0 ERROR"
  echo >&2 "    Operation already in progress OR"
  echo >&2 "    insufficient rights to write $lock"
       die "    Maybe \`sudo $0 $*\`?"
 fi

 # Prevent creating duplicate nested directories
 if [[ -d "$target" ]]; then
  rsync_target="$target/"
 else
  rsync_target="$target"
 fi

 # Hard copy $target as $new
 /usr/bin/rsync -av "$rsync_target" "$new"

 # Verify original == $new
 /usr/bin/diff -qr "$target" "$new" || die "$0 copy failure (out of space OR bad media?). Original unchanged."

 # Rotate original out of the way
 /bin/mv -v "$target" "$orig"

 # Slide in the new one
 /bin/mv -v "$new" "$target"

 # Remove the now duplicate original
 /bin/rm -rf "$orig"
	#!/bin/bash
	# Free fucking beer license. It may break and you assume all responsibility.
	set -eEuo pipefail

	die() {
	echo >&2 "$@"
	exit 1
	}

	[[ $# = 1 ]] \|\| die "$0 {target} <-- missing file or directory to remove all xattrs from"
	target="$(/usr/bin/readlink -f "$1")"
	[[ -f "$target" \|\| -d "$target" ]] \|\| die "$0 {target} <-- must be a file or a directory"
	prefix="$(/usr/bin/dirname "$target")/.$(/usr/bin/basename "$target")"
	new="$prefix.$$.new"
	orig="$prefix.$$.orig"
	lock="$prefix.macl-lock"

	# Remove stuff on normal or abnormal termination
	# $orig is not deleted here in case of error
	trap 'e=$?; trap - EXIT; /bin/rm -rf "$new" "$lock"; exit $e' EXIT

	# mkdir is atomic on macOS, and suffices when flock is unavailable
	if ! /bin/mkdir "$lock"; then
	echo >&2 "$0 ERROR"
	echo >&2 " Operation already in progress OR"
	echo >&2 " insufficient rights to write $lock"
	die " Maybe \`sudo $0 $*\`?"
	fi

	# Prevent creating duplicate nested directories
	if [[ -d "$target" ]]; then
	rsync_target="$target/"
	else
	rsync_target="$target"
	fi

	# Hard copy $target as $new
	/usr/bin/rsync -av "$rsync_target" "$new"

	# Verify original == $new
	/usr/bin/diff -qr "$target" "$new" \|\| die "$0 copy failure (out of space OR bad media?). Original unchanged."

	# Rotate original out of the way
	/bin/mv -v "$target" "$orig"

	# Slide in the new one
	/bin/mv -v "$new" "$target"

	# Remove the now duplicate original
	/bin/rm -rf "$orig"