build: make asc use config.sh

Similarly to mkdeb.sh.

Relates to netblue30#5140.

Makefile

@@ -339,8 +339,8 @@ dist: clean config.mk
  rm -fr $(TARNAME)-$(VERSION)
 
 .PHONY: asc
-asc: config.mk
- ./mkasc.sh $(VERSION)
+asc: config.sh
+ ./mkasc.sh
 
 .PHONY: deb
 deb: dist config.sh

mkasc.sh

@@ -3,11 +3,13 @@
 # Copyright (C) 2014-2023 Firejail Authors
 # License GPL v2
 
-echo "Calculating SHA256 for all files in /transfer - firejail version $1"
+. "$(dirname "$0")/config.sh"
+
+printf 'Calculating SHA256 for all files in /transfer - %s version %s' "$TARNAME" "$VERSION"
 
 cd /transfer || exit 1
-sha256sum ./* > "firejail-$1-unsigned"
-gpg --clearsign --digest-algo SHA256 < "firejail-$1-unsigned" > "firejail-$1.asc"
-gpg --verify "firejail-$1.asc"
-gpg --detach-sign --armor "firejail-$1.tar.xz"
-rm "firejail-$1-unsigned"
+sha256sum ./* > "$TARNAME-$VERSION-unsigned"
+gpg --clearsign --digest-algo SHA256 < "$TARNAME-$VERSION-unsigned" > "$TARNAME-$VERSION.asc"
+gpg --verify "$TARNAME-$VERSION.asc"
+gpg --detach-sign --armor "$TARNAME-$VERSION.tar.xz"
+rm "$TARNAME-$VERSION-unsigned"