main: turn ucode into multicall executable

Turn the ucode executable into a multicall binary and select default flags
based on the name it was invoked with. Introduce two new symlinks "ucc" and
"utpl" which start ucode in compile and template mode respectively.

Signed-off-by: Jo-Philipp Wich <jo@mein.io>

2 files changed, 30 insertions, 4 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index c0ed3d4..1f81cdb 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -216,6 +216,10 @@ INSTALL(TARGETS ucode RUNTIME DESTINATION bin)
 INSTALL(TARGETS libucode LIBRARY DESTINATION lib)
 INSTALL(TARGETS ${LIBRARIES} LIBRARY DESTINATION lib/ucode)
 
+ADD_CUSTOM_TARGET(ucc ALL COMMAND ${CMAKE_COMMAND} -E create_symlink ucode ucc)
+ADD_CUSTOM_TARGET(utpl ALL COMMAND ${CMAKE_COMMAND} -E create_symlink ucode utpl)
+INSTALL(FILES ucc;utpl DESTINATION bin)
+
 FILE(GLOB UCODE_HEADERS "include/ucode/*.h")
 INSTALL(FILES ${UCODE_HEADERS} DESTINATION include/ucode)
 
diff --git a/main.c b/main.c
index c974c69..e066961 100644
--- a/main.c
+++ b/main.c
@@ -37,8 +37,6 @@ static FILE *stdin_unused;
 static void
 print_usage(const char *app)
 {
-	const char *p = strrchr(app, '/');
-
 	printf(
 	"Usage:\n"
 	"  %1$s -h\n"
@@ -100,7 +98,7 @@ print_usage(const char *app)
 	"-s\n"
 	"  Omit (strip) debug information when compiling files.\n"
 	"  Only meaningful in conjunction with `-c`.\n\n",
-		p ? p + 1 : app);
+		app);
 }
 
 
@@ -444,6 +442,22 @@ parse_library_load(char *opt, uc_vm_t *vm)
 	return true;
 }
 
+static const char *
+appname(const char *argv0)
+{
+	const char *p;
+
+	if (!argv0)
+		return "ucode";
+
+	p = strrchr(argv0, '/');
+
+	if (p)
+		return p + 1;
+
+	return argv0;
+}
+
 int
 main(int argc, char **argv)
 {
@@ -454,6 +468,7 @@ main(int argc, char **argv)
 	bool strip = false;
 	uc_vm_t vm = { 0 };
 	int opt, rv = 0;
+	const char *app;
 	uc_value_t *o;
 	int fd;
 
@@ -464,11 +479,18 @@ main(int argc, char **argv)
 		.raw_mode = true
 	};
 
+	app = appname(argv[0]);
+
 	if (argc == 1) {
-		print_usage(argv[0]);
+		print_usage(app);
 		goto out;
 	}
 
+	if (!strcmp(app, "utpl"))
+		config.raw_mode = false;
+	else if (!strcmp(app, "ucc"))
+		outfile = "./uc.out";
+
 	stdin_unused = stdin;
 
 	uc_vm_init(&vm, &config);