Generate usage message copyright year automatically (#256)

* Automate copyright year message generation The copyright year displayed in cli usage messages is now automatically generated when neko is compiled. This required adding a `$neko_build_year()` builtin function to neko. * Fix typo in nekoc help message
HaxeFoundation · Mar 27, 2023 · 9aa2aae · 9aa2aae
1 parent ca4d761
commit 9aa2aae
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Showing 7 changed files with 20 additions and 4 deletions.
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -45,6 +45,8 @@ set(NEKO_VERSION_MAJOR 2)
 set(NEKO_VERSION_MINOR 4)
 set(NEKO_VERSION_PATCH 0)
 
+string(TIMESTAMP NEKO_BUILD_YEAR "%Y")
+
 # NEKO_VERSION is cached such that we can query it by `cmake -L -N -B . | grep NEKO_VERSION`
 set(NEKO_VERSION ${NEKO_VERSION_MAJOR}.${NEKO_VERSION_MINOR}.${NEKO_VERSION_PATCH} CACHE STRING INTERNAL)
 

diff --git a/src/neko/Main.nml b/src/neko/Main.nml
@@ -135,7 +135,8 @@ function complete(dir) {
 
 try {
 	var v = Sys.version;
-	var head = "Neko Compiler v" + v.maj + "." + v.min + "." + v.build + " - (c)2005-2022 Haxe Foundation\n Usage : neko [options] files...";
+	var year : int = neko "$neko_build_year()";
+	var head = "Neko Compiler v" + v.maj + "." + v.min + "." + v.build + " - (c)2005-" + year + " Haxe Foundation\n Usage : nekoc [options] files...";
 	var link = &None;
 	var links = &[];
 	var version = &0;

diff --git a/src/nekoml/Main.nml b/src/nekoml/Main.nml
@@ -77,7 +77,8 @@ exception FileNotFound : string;
 
 try {
 	var v = Sys.version;
-	var head = "NekoML Compiler v" + v.maj + "." + v.min + "." + v.build + " - (c)2005-2019 Haxe Foundation\n Usage : nekoml [options] files...";
+	var year : int = neko "$neko_build_year()";
+	var head = "NekoML Compiler v" + v.maj + "." + v.min + "." + v.build + " - (c)2005-" + year + " Haxe Foundation\n Usage : nekoml [options] files...";
 	var path = &[""];
 	var files = &[];
 	var neko = &false;

diff --git a/src/tools/Tools.nml b/src/tools/Tools.nml
@@ -30,7 +30,8 @@ function invalid_arg(f) {
 }
 
 try {
-	var head = "Neko Tools v1.0 - (c)2005-2022 Haxe Foundation\nUsage : nekotools [options]";
+	var year : int = neko "$neko_build_year()";
+	var head = "Neko Tools v1.0 - (c)2005-" + year + " Haxe Foundation\nUsage : nekotools [options]";
 	var decl = [
 		("server", Args.Void (function() {
 			erase_argument();

diff --git a/vm/builtins.c b/vm/builtins.c
@@ -1507,6 +1507,14 @@ static value builtin_version() {
 	return alloc_int(NEKO_VERSION);
 }
 
+/**
+	$neko_build_year : void -> int
+	<doc>Return the year that Neko was compiled.</doc>
+**/
+static value builtin_neko_build_year() {
+	return alloc_int(NEKO_BUILD_YEAR);
+}
+
 /**
 	$setresolver : function:2? -> void
 	<doc>Set a function to callback with object and field id when an object field is not found.</doc>
@@ -1618,6 +1626,7 @@ void neko_init_builtins() {
 	BUILTIN(excstack,0);
 	BUILTIN(callstack,0);
 	BUILTIN(version,0);
+	BUILTIN(neko_build_year,0);
 	BUILTIN(setresolver,1);
 }
 

diff --git a/vm/main.c b/vm/main.c
@@ -302,7 +302,7 @@ int main( int argc, char *argv[] ) {
 #			ifdef NEKO_STANDALONE
 			report(vm,alloc_string("No embedded module in this executable"),0);
 #			else
-			printf("NekoVM %d.%d.%d (c)2005-2022 Haxe Foundation\n  Usage : neko <file>\n",NEKO_VERSION_MAJOR,NEKO_VERSION_MINOR,NEKO_VERSION_PATCH);
+			printf("NekoVM %d.%d.%d (c)2005-%d Haxe Foundation\n  Usage : neko <file>\n",NEKO_VERSION_MAJOR,NEKO_VERSION_MINOR,NEKO_VERSION_PATCH,NEKO_BUILD_YEAR);
 #			endif
 			mload = NULL;
 			r = 1;

diff --git a/vm/neko.h.in b/vm/neko.h.in
@@ -116,6 +116,8 @@
 #define NEKO_VERSION_PATCH	@NEKO_VERSION_PATCH@
 #define NEKO_VERSION		@NEKO_VERSION_MAJOR@@NEKO_VERSION_MINOR@@NEKO_VERSION_PATCH@
 
+#define NEKO_BUILD_YEAR		@NEKO_BUILD_YEAR@
+
 #define NEKO_MODULE_PATH	"@NEKO_MODULE_PATH@"
 
 typedef intptr_t int_val;