Add version option

Makefile

@@ -23,6 +23,11 @@ else
   # release flags
   CXXFLAGS += -Ofast
 endif
+
+ifneq	($(RELEASE), true)
+	VSUFFIX=-dev-$(SHA_SHORT)
+endif
+
 ifeq    ($(STATIC),true)
   # static links
   LDFLAGS += -l:libztd.a
@@ -33,22 +38,27 @@ endif
 
 ## END CONFIG ##
 
-
+$(shell ./generate_version.sh)
 $(shell mkdir -p $(ODIR))
 $(shell mkdir -p $(BINDIR))
 
 # automatically find .h and .hpp
-DEPS = $(shell find $(IDIR) -type f -regex '.*\.hp?p?')
+DEPS = $(shell find $(IDIR) -type f -regex '.*\.hp?p?' ! -name 'g_version.h')
 # automatically find .c and .cpp and make the corresponding .o rule
 OBJ = $(shell find $(SRCDIR) -type f -regex '.*\.cp?p?' | sed 's|\.cpp|.o|g;s|\.c|.o|g;s|^$(SRCDIR)/|$(ODIR)/|g')
 
+build: lxsh $(OBJ) $(DEPS)
+
 $(ODIR)/%.o: $(SRCDIR)/%.c $(DEPS)
 	$(CC) $(CXXFLAGS) -c -o $@ $<
 
 $(ODIR)/%.o: $(SRCDIR)/%.cpp $(DEPS)
 	$(CC) $(CXXFLAGS) -c -o $@ $<
 
-$(BINDIR)/$(NAME): $(OBJ)
+$(ODIR)/main.o: $(SRCDIR)/main.cpp $(DEPS) $(IDIR)/g_version.h
+	$(CC) $(CXXFLAGS) -c -o $@ $<
+
+lxsh: $(OBJ)
 	$(CC) $(CXXFLAGS) -o $@ $^ $(LDFLAGS)
 
 test: $(BINDIR)/$(NAME)

generate_version.sh

@@ -0,0 +1,23 @@
+#!/bin/sh
+
+SHA_FULL=$(git rev-parse HEAD)
+IDIR=$(grep '^IDIR=' Makefile | cut -d '=' -f2-)
+file="$IDIR/g_version.h"
+
+OLD_SHA=$(grep 'VERSION_SHA' "$file" | cut -d '"' -f2)
+OLD_SUFFIX=$(grep 'VERSION_SUFFIX' "$file" | cut -d '"' -f2)
+
+[ "$RELEASE" != "true" ] && SUFFIX="-dev-$(echo "$SHA_FULL" | cut -c1-10)"
+
+
+if [ "$OLD_SHA" != "$SHA_FULL" ] || [ "$OLD_SUFFIX" != "$SUFFIX"  ] ; then
+  cat > "$file" << EOF
+#ifndef G_VERSION_H
+#define G_VERSION_H
+#define VERSION_SUFFIX "$SUFFIX"
+#define VERSION_SHA "$SHA_FULL"
+#endif
+EOF
+fi
+
+exit 0

src/main.cpp

@@ -15,20 +15,27 @@
 #include "minimize.hpp"
 #include "resolve.hpp"
 
+#include "version.h"
+#include "g_version.h"
+
 void oneshot_opt_process(const char* arg0)
 {
   if(options['h'])
   {
     print_help(arg0);
-    exit(1);
   }
-  if(options["help-commands"])
+  else if(options["version"])
+  {
+    printf("%s %s%s\n", arg0, VERSION_STRING, VERSION_SUFFIX);
+    printf("%s\n", VERSION_SHA);
+  }
+  else if(options["help-commands"])
   {
     print_include_help();
     printf("\n\n");
     print_resolve_help();
-    exit(1);
   }
+  exit(0);
 }
 
 int main(int argc, char* argv[])
@@ -47,6 +54,8 @@ int main(int argc, char* argv[])
     return 1;
   }
 
+  oneshot_opt_process(argv[0]);
+
   // resolve input
   std::string file;
   if(args.size() > 0) // argument provided

src/options.cpp

@@ -15,6 +15,7 @@ ztd::option_set gen_options()
   ret.add(
       ztd::option("\r  [Help]"),
       ztd::option('h', "help",          false, "Display this help message"),
+      ztd::option("version",            false, "Display version"),
       ztd::option("help-commands",      false, "Print help for linker commands"),
       ztd::option("\r  [Output]"),
       ztd::option('o', "output",        true , "Output result script to file", "file"),