cli & makefile: allow dynamic version generation

Makefile

@@ -14,9 +14,27 @@ INCLUDES = $(wildcard $(DIR_INCLUDE)/*.h)
 _OBJECTS = $(wildcard $(DIR_SOURCE)/*.c)
 OBJECTS = $(patsubst $(DIR_SOURCE)/%.c,$(DIR_OBJECT)/%.o,$(_OBJECTS))
 
+ifdef VERSION_CUSTOM
+	CLI_VERSION := $(VERSION_CUSTOM)
+else
+	VERSION_GIT_TAG := $(shell git describe --abbrev=0 --tags ${TAG_COMMIT} 2>/dev/null || true)
+	VERSION_GIT_TAG_NO_V := $(VERSION_GIT_TAG:v%=%)
+	VERSION_GIT_COMMIT := $(shell git rev-list --abbrev-commit --tags --max-count=1)
+	VERSION_GIT_DATE := $(shell git log -1 --format=%cd --date=format:"%Y%m%d")
+	CLI_VERSION := $(VERSION_GIT_TAG_NO_V)-$(VERSION_GIT_COMMIT)-$(VERSION_GIT_DATE)
+endif
+
+ifeq ($(CLI_VERSION),)
+	CLI_VERSION := unknown
+endif
+
 $(BINARY): $(OBJECTS)
 	$(CC) -o $@ $^ $(CFLAGS) $(LDFLAGS)
 
+$(DIR_OBJECT)/cli.o: $(DIR_SOURCE)/cli.c $(INCLUDES)
+	$(CC) -c -o $@ $< $(CFLAGS) -DCLI_VERSION=\"$(CLI_VERSION)\"
+
+
 $(DIR_OBJECT)/%.o: $(DIR_SOURCE)/%.c $(INCLUDES)
 	$(CC) -c -o $@ $< $(CFLAGS)
 

src/cli.c

@@ -75,7 +75,11 @@ struct cli_options cli_options = {
 
 void 
 cli_version(){
+#ifdef CLI_VERSION
+    fputs("ampart-ng (Amlogic eMMC partition tool) by 7Ji, version "CLI_VERSION"\n", stderr);
+#else
     fputs("ampart-ng (Amlogic eMMC partition tool) by 7Ji, development version, debug usage only\n", stderr);
+#endif
 }
 
 size_t