feat: Generate version at compilation time

.gitignore

@@ -17,3 +17,6 @@ valgrind.log
 
 # Testing files
 *.narc
+
+# Generated files
+cli/include/version.h

Makefile

@@ -41,11 +41,14 @@ CLIINC = $(wildcard cli/include/*.h)
 CLISRC = $(wildcard cli/src/*.c)
 CLIOBJ = $(CLISRC:.c=.o)
 CLIDEP = $(CLISRC:.c=.d)
+CLIVER = cli/include/version.h
 
 ALLSRC = $(CLISRC) $(LIBSRC)
 ALLINC = $(CLIINC) $(LIBINC)
 
-.PHONY: all cli lib debug release clean install
+VERSION = VERSION
+
+.PHONY: all cli lib debug release clean install version
 
 all: lib cli
 
@@ -60,14 +63,18 @@ release: CFLAGS += -DNDEBUG -O3
 release: clean all
 
 clean:
-	$(RM) $(LIBTARGET) $(LIBOBJ) $(LIBDEP) $(CLITARGET) $(CLIOBJ) $(CLIDEP)
+	$(RM) $(LIBTARGET) $(LIBOBJ) $(LIBDEP) $(CLITARGET) $(CLIOBJ) $(CLIDEP) $(CLIVER)
 
 -include $(LIBDEP)
 -include $(CLIDEP)
 
+version:
+$(CLIVER): tools/version.sh $(VERSION)
+	$< $(VERSION) $@
+
 # Statically link the CLI
 $(CLITARGET): CFLAGS += -I./cli/include
-$(CLITARGET): $(CLIOBJ) $(LIBOBJ)
+$(CLITARGET): $(CLIVER) $(CLIOBJ) $(LIBOBJ)
 	$(CC) $(LDFLAGS) -o $@ $^
 
 $(LIBTARGET): LDFLAGS += -shared

VERSION

@@ -0,0 +1 @@
+0.1.0

cli/include/meson.build

@@ -0,0 +1,7 @@
+cli_version_h = custom_target(
+    'cli_version_h',
+    output: 'version.h',
+    command: [version_sh, version, '@OUTPUT@'],
+)
+
+cli_includes = include_directories('.')

cli/meson.build

@@ -24,4 +24,4 @@ cli_sources = files(
     'src/strvec.c',
 )
 
-cli_includes = include_directories('include')
+subdir('include')

cli/src/narc.c

@@ -23,6 +23,7 @@
 
 #include "command.h"
 #include "strutil.h"
+#include "version.h"
 
 // clang-format off
 const struct command handlers[] = {
@@ -34,7 +35,7 @@ const struct command handlers[] = {
     { 0 },
 };
 
-static const char *version = "0.1.0";
+static const char *version = NARC_VERSION;
 // clang-format on
 
 int main(int argc, const char **argv)

meson.build

@@ -18,7 +18,9 @@ project(
     license: 'Apache-2.0',
     license_files: 'LICENSE',
     meson_version: '>=1.5.0',
-    version: '0.1.0',
+
+    # This is a little ugly, but it works... I guess...
+    version: run_command('./tools/version.sh', 'VERSION', check: false).stdout().strip(),
     default_options: {
         'buildtype': 'release', # O3
         'warning_level': '3', # all, extra, pedantic
@@ -28,7 +30,9 @@ project(
 
 native = get_option('native')
 install = native and meson.is_cross_build() ? false : true
+version = files('VERSION')
 
+subdir('tools')
 subdir('lib')
 subdir('cli')
 
@@ -50,6 +54,7 @@ libnarc_dep = declare_dependency(
 narc_exe = executable(
     'narc',
     sources: [
+        cli_version_h,
         cli_sources,
         lib_sources,
     ],

tools/meson.build

@@ -0,0 +1 @@
+version_sh = find_program('version.sh', native: true)

tools/version.sh

@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+
+VERSION_FILE=$1
+TARGET_FILE=$2
+
+VERSION=$(cat "${VERSION_FILE}")
+
+if test -z "${TARGET_FILE}"; then
+    echo "${VERSION}"
+else
+    {
+        echo "/* THIS HEADER IS AUTOMATICALLY GENERATED */"
+        echo "/*          DO NOT MODIFY IT!!!           */"
+        echo "#ifndef NARC_VERSION_H"
+        echo "#define NARC_VERSION_H"
+        echo ""
+        echo "#define NARC_VERSION \"${VERSION}\""
+        echo ""
+        echo "#endif /* NARC_VERSION_H */"
+    } >"${TARGET_FILE}"
+fi