dmenu_run: Split cache logic to dmenu_path again

This allows to run dmenu_path to update the cache using
a packager manager hook system

Makefile

@@ -35,7 +35,7 @@ clean:
 dist: clean
 	@echo creating dist tarball
 	@mkdir -p dmenu-${VERSION}
-	@cp LICENSE Makefile README config.mk dmenu.1 draw.h dmenu_run stest.1 ${SRC} dmenu-${VERSION}
+	@cp LICENSE Makefile README config.mk dmenu.1 draw.h dmenu_path dmenu_run stest.1 ${SRC} dmenu-${VERSION}
 	@tar -cf dmenu-${VERSION}.tar dmenu-${VERSION}
 	@gzip dmenu-${VERSION}.tar
 	@rm -rf dmenu-${VERSION}
@@ -43,8 +43,9 @@ dist: clean
 install: all
 	@echo installing executables to ${DESTDIR}${PREFIX}/bin
 	@mkdir -p ${DESTDIR}${PREFIX}/bin
-	@cp -f dmenu dmenu_run stest ${DESTDIR}${PREFIX}/bin
+	@cp -f dmenu dmenu_path dmenu_run stest ${DESTDIR}${PREFIX}/bin
 	@chmod 755 ${DESTDIR}${PREFIX}/bin/dmenu
+	@chmod 755 ${DESTDIR}${PREFIX}/bin/dmenu_path
 	@chmod 755 ${DESTDIR}${PREFIX}/bin/dmenu_run
 	@chmod 755 ${DESTDIR}${PREFIX}/bin/stest
 	@echo installing manual pages to ${DESTDIR}${MANPREFIX}/man1
@@ -57,6 +58,7 @@ install: all
 uninstall:
 	@echo removing executables from ${DESTDIR}${PREFIX}/bin
 	@rm -f ${DESTDIR}${PREFIX}/bin/dmenu
+	@rm -f ${DESTDIR}${PREFIX}/bin/dmenu_path
 	@rm -f ${DESTDIR}${PREFIX}/bin/dmenu_run
 	@rm -f ${DESTDIR}${PREFIX}/bin/stest
 	@echo removing manual page from ${DESTDIR}${MANPREFIX}/man1

dmenu_path

@@ -0,0 +1,13 @@
+#!/bin/sh
+cachedir=${XDG_CACHE_HOME:-"$HOME/.cache"}
+if [ -d "$cachedir" ]; then
+	cache=$cachedir/dmenu_run
+else
+	cache=$HOME/.dmenu_cache # if no xdg dir, fall back to dotfile in ~
+fi
+IFS=:
+if stest -dqr -n "$cache" $PATH; then
+	stest -flx $PATH | sort -u | tee "$cache"
+else
+	cat "$cache"
+fi

dmenu_run

@@ -1,15 +1,2 @@
 #!/bin/sh
-cachedir=${XDG_CACHE_HOME:-"$HOME/.cache"}
-if [ -d "$cachedir" ]; then
-	cache=$cachedir/dmenu_run
-else
-	cache=$HOME/.dmenu_cache # if no xdg dir, fall back to dotfile in ~
-fi
-(
-	IFS=:
-	if stest -dqr -n "$cache" $PATH; then
-		stest -flx $PATH | sort -u | tee "$cache" | dmenu "$@"
-	else
-		dmenu "$@" < "$cache"
-	fi
-) | ${SHELL:-"/bin/sh"} &
+dmenu_path | dmenu "$@" | ${SHELL:-"/bin/sh"} &