compositor: Add some handy wrappers for wet_get_binary_path()

This allows to possibility to specify where to look for the executable
but also simplifies the need of having to pass either BINDIR/LIBEXECDIR
for retrieving full-path of the executable.

Signed-off-by: Marius Vlad <marius.vlad0@gmail.com>

compositor/main.c

@@ -903,8 +903,8 @@ wet_load_shell(struct weston_compositor *compositor,
 	return 0;
 }
 
-WL_EXPORT char *
+static char *
-wet_get_binary_path(const char *name)
+wet_get_binary_path(const char *name, const char *dir)
 {
 	char path[PATH_MAX];
 	size_t len;
@@ -913,13 +913,25 @@ wet_get_binary_path(const char *name)
 	if (len > 0)
 		return strdup(path);
 
-	len = snprintf(path, sizeof path, "%s/%s", LIBEXECDIR, name);
+	len = snprintf(path, sizeof path, "%s/%s", dir, name);
 	if (len >= sizeof path)
 		return NULL;
 
 	return strdup(path);
 }
 
+WL_EXPORT char *
+wet_get_libexec_path(const char *name)
+{
+	return wet_get_binary_path(name, LIBEXECDIR);
+}
+
+WL_EXPORT char *
+wet_get_bindir_path(const char *name)
+{
+	return wet_get_binary_path(name, BINDIR);
+}
+
 static int
 load_modules(struct weston_compositor *ec, const char *modules,
 	     int *argc, char *argv[], int32_t *xwayland)

compositor/text-backend.c

@@ -1049,7 +1049,7 @@ text_backend_configuration(struct text_backend *text_backend)
 
 	section = weston_config_get_section(config,
 					    "input-method", NULL, NULL);
-	client = wet_get_binary_path("weston-keyboard");
+	client = wet_get_libexec_path("weston-keyboard");
 	weston_config_section_get_string(section, "path",
 					 &text_backend->input_method.path,
 					 client);

compositor/weston-screenshooter.c

@@ -127,7 +127,7 @@ screenshooter_binding(struct weston_keyboard *keyboard,
 	char *screenshooter_exe;
 
 
-	screenshooter_exe = wet_get_binary_path("weston-screenshooter");
+	screenshooter_exe = wet_get_libexec_path("weston-screenshooter");
 	if (!screenshooter_exe) {
 		weston_log("Could not construct screenshooter path.\n");
 		return;

compositor/weston.h

@@ -78,7 +78,10 @@ module_init(struct weston_compositor *compositor,
 	    int *argc, char *argv[]);
 
 char *
-wet_get_binary_path(const char *name);
+wet_get_libexec_path(const char *name);
+
+char *
+wet_get_bindir_path(const char *name);
 
 int
 wet_load_xwayland(struct weston_compositor *comp);

desktop-shell/shell.c

@@ -468,7 +468,7 @@ shell_configuration(struct desktop_shell *shell)
 
 	section = weston_config_get_section(wet_get_config(shell->compositor),
 					    "shell", NULL, NULL);
-	client = wet_get_binary_path(WESTON_SHELL_CLIENT);
+	client = wet_get_libexec_path(WESTON_SHELL_CLIENT);
 	weston_config_section_get_string(section, "client", &s, client);
 	free(client);
 	shell->client = s;

ivi-shell/hmi-controller.c

@@ -709,7 +709,7 @@ hmi_server_setting_create(struct weston_compositor *ec)
 					 "ivi-shell-user-interface",
 					 &ivi_ui_config, NULL);
 	if (ivi_ui_config && ivi_ui_config[0] != '/') {
-		setting->ivi_homescreen = wet_get_binary_path(ivi_ui_config);
+		setting->ivi_homescreen = wet_get_libexec_path(ivi_ui_config);
 		if (setting->ivi_homescreen)
 			free(ivi_ui_config);
 		else