Merge branch 'make-release'

* make-release:
  Makefile: add release rule
  Makefile: avoid full rebuilds when the Makefile changes
  Makefile: build appimage-runtime and appimage-runtime-zstd
  Makefile: use bash as SHELL

Signed-off-by: Tim Janik <[email protected]>

Makefile

@@ -1,3 +1,5 @@
+SHELL         ::= /bin/bash -o pipefail
+
 all: # default target
 
 CC		 ?= clang
@@ -10,28 +12,43 @@ LDFLAGS		::= -pthread
 SQUASHLIBS	::= squashfs squashfuse squashfuse_ll fuse fuseprivate
 UNZLIBS		::= zstd lz4 z lzo2 lzma
 LIBS		::= -ldl $(SQUASHLIBS:%=-l:lib%.a)
+TARGETS		::=
 
 # == runtime.c ==
-runtime.o: src/runtime.c $(wildcard src/*.c src/*.h) Makefile
+runtime.o: src/runtime.c $(wildcard src/*.c src/*.h)
 	$(CC) $(INCLUDES) $(DEFS) $(OPTIMIZE) $(PKG_CFLAGS) $(CFLAGS) -c $< -o $@
 
-# == runtime ==
-runtime: runtime.o
+# == appimage-runtime ==
+appimage-runtime: runtime.o
 	$(CC) $(OPTIMIZE) $(PKG_CFLAGS) $(CFLAGS) $(LDFLAGS) \
 		$< -o $@ $(LIBS) $(UNZLIBS:%=-l:lib%.a)
 	strip $@
-all: runtime
+TARGETS += appimage-runtime
 
-# == runtime-zstd ==
-runtime-zstd: runtime.o src/mocklibs.c
+# == appimage-runtime-zstd ==
+appimage-runtime-zstd: runtime.o src/mocklibs.c
 	$(CC) $(OPTIMIZE) $(PKG_CFLAGS) $(CFLAGS) $(LDFLAGS) \
 		src/mocklibs.c -DWITH_ZSTD \
 		$< -o $@ $(LIBS) $(UNZLIBS:%=-l:lib%.a) \
 		$(LIBS) -l:libzstd.a
 	strip $@
-all: runtime-zstd
+TARGETS += appimage-runtime-zstd
 
 # == clean ==
 clean:
-	rm -f *.o runtime runtime-zstd
+	rm -f *.o appimage-runtime appimage-runtime-zstd
+
+# == all ==
+all: $(TARGETS)
+
+# == release ==
+release: all
+	@ git merge-base --is-ancestor HEAD origin/trunk || { echo "ERROR: HEAD not published in origin/trunk" ; false ; }
+	@ rm -f .release && D=`date +%y.%m | sed 's/\.0/./g'` && \
+		for n in `seq 0 99` ; do git rev-parse $$D.$$n >/dev/null 2>&1 || { echo $$D.$$n >.release; break ; } ; done
+	@ R=`cat .release` && rm -f .release && echo -e "\n# RELEASE: appimage-runtime v$$R:" && \
+		echo "hub release create -dpo -m 'appimage-runtime v$$R' $$R    $(TARGETS:%=-a %)" && \
+		echo '^^^^^^^^^^^^^^^^^^ Enter to execute... ' && \
+		read && \
+		hub release create -dpo -m "appimage-runtime v$$R" $$R    $(TARGETS:%=-a %)