config.rc: better helper functions

FossilOrigin-Name: 616fa2758bb01ad6f314baa41abb361b53194e62407bdc7ecd2320be41073334

1 files changed, 19 insertions, 8 deletions

diff --git a/config.rc b/config.rc
index f09b44c..2f0733b 100644
--- a/config.rc
+++ b/config.rc
@@ -39,6 +39,8 @@ setv EMACS    = emacs
 setv MAKEINFO = makeinfo
 
 # Helper functions
+target=$1 basename=$2 dest=$3
+
 redo_clean() {
     # Clean function for various redo implementations
     [ -r .do_built ] && {
@@ -52,15 +54,24 @@ redo_clean() {
     [ "$REDO_BASE" ] || rm -rf -- .redo
 }
 
+targcheck() {
+    # Usage: targcheck [target...]
+    #
+    # Check if current target is one of the given arguments of this function.
+    # Returns 0 if target is one of the arguments, returns 1 if not.
+    case " $* " in *" $target "*) return 0; esac; return 1
+}
+
 PHONY() {
-    # Function that resembles the .PHONY: target on the classic 'make' build
-    # system.
-    [ "$1" ] || {
-        trap 'rm -f $3' EXIT INT
-        return 0
-    }
-    setv PHONY += "$@"
-    trap 'case " $PHONY " in *" $1 "*) rm -f $3; esac' EXIT INT
+    # Usage: PHONY [[target...]]
+    #
+    # Function that resembles the .PHONY: target on the classic 'make' system.
+    # You can either use it without an argument on a single target, or specify
+    # multiple targets.
+    if [ -z "$1" ] || targcheck "$@"; then
+        # shellcheck disable=2064
+        trap "rm -f $dest" EXIT INT
+    fi
 }
 
 getbin() {