A command to list PHONY build targets in a makefile

phony.sh

# add to ~/.zshrc
function phony() {
	local MAKEFILE="makefile"
	if [[ -n "$1" ]]; then
		MAKEFILE="$1"
		if [[ ! -f "$FILE" ]]; then
			echo "phony: makefile '$MAKEFILE' not found." >&2
			return 1
		fi
	fi
	
	grep '^\.PHONY:' "$MAKEFILE" \
	  | sed -E 's/^\.PHONY:[[:space:]]*//' \
	  | awk -F '##' '{
	      comment = ($2 ? $2 : "-");
		  gsub(/^[ \t]+/, "", comment);
	      n = split($1, targets, /[[:space:]]+/);
	      for (i = 1; i <= n; i++) {
	        if (length(targets[i])) {
	          printf "\033[36m%-8s\033[0m %s\n", targets[i], comment;
	        }
	      }
	    }' \
	  | sort
}