gtk: extract translations from Zig source code

po/com.mitchellh.ghostty.pot

@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: com.mitchellh.ghostty\n"
 "Report-Msgid-Bugs-To: m@mitchellh.com\n"
-"POT-Creation-Date: 2025-02-26 14:34+0100\n"
+"POT-Creation-Date: 2025-02-28 22:12+0100\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -133,6 +133,7 @@ msgid "Terminal Inspector"
 msgstr ""
 
 #: src/apprt/gtk/ui/1.0/menu-window-titlebar_menu.blp:102
+#: src/apprt/gtk/Window.zig:923
 msgid "About Ghostty"
 msgstr ""
 
@@ -176,3 +177,28 @@ msgid ""
 "Pasting this text into the terminal may be dangerous as it looks like some "
 "commands may be executed."
 msgstr ""
+
+#: src/apprt/gtk/Window.zig:192
+msgid "Main Menu"
+msgstr ""
+
+#: src/apprt/gtk/Window.zig:212
+msgid "View Open Tabs"
+msgstr ""
+
+#: src/apprt/gtk/Window.zig:257
+msgid ""
+"⚠️ You're running a debug build of Ghostty! Performance will be degraded."
+msgstr ""
+
+#: src/apprt/gtk/Window.zig:660
+msgid "Reloaded the configuration"
+msgstr ""
+
+#: src/apprt/gtk/Window.zig:904
+msgid "Ghostty Developers"
+msgstr ""
+
+#: src/apprt/gtk/Surface.zig:1236
+msgid "Copied to clipboard"
+msgstr ""

src/apprt/gtk/Surface.zig

@@ -33,6 +33,7 @@ const gtk_key = @import("key.zig");
 const c = @import("c.zig").c;
 const Builder = @import("Builder.zig");
 const adwaita = @import("adwaita.zig");
+const i18n = @import("i18n.zig");
 
 const log = std.log.scoped(.gtk_surface);
 
@@ -1232,7 +1233,7 @@ pub fn setClipboardString(
             self.app.config.@"app-notifications".@"clipboard-copy")
         {
             if (self.container.window()) |window|
-                window.sendToast("Copied to clipboard");
+                window.sendToast(i18n._("Copied to clipboard"));
         }
         return;
     }

src/apprt/gtk/Window.zig

@@ -33,6 +33,7 @@ const TabView = @import("TabView.zig");
 const HeaderBar = @import("headerbar.zig");
 const version = @import("version.zig");
 const winproto = @import("winproto.zig");
+const i18n = @import("i18n.zig");
 
 const log = std.log.scoped(.gtk);
 
@@ -188,7 +189,7 @@ pub fn init(self: *Window, app: *App) !void {
 
     {
         const btn = c.gtk_menu_button_new();
-        c.gtk_widget_set_tooltip_text(btn, "Main Menu");
+        c.gtk_widget_set_tooltip_text(btn, i18n._("Main Menu"));
         c.gtk_menu_button_set_icon_name(@ptrCast(btn), "open-menu-symbolic");
         c.gtk_menu_button_set_popover(@ptrCast(btn), @ptrCast(@alignCast(self.titlebar_menu.asWidget())));
         _ = c.g_signal_connect_data(
@@ -208,7 +209,7 @@ pub fn init(self: *Window, app: *App) !void {
         const btn = switch (self.config.gtk_tabs_location) {
             .top, .bottom => btn: {
                 const btn = c.gtk_toggle_button_new();
-                c.gtk_widget_set_tooltip_text(btn, "View Open Tabs");
+                c.gtk_widget_set_tooltip_text(btn, i18n._("View Open Tabs"));
                 c.gtk_button_set_icon_name(@ptrCast(btn), "view-grid-symbolic");
                 _ = c.g_object_bind_property(
                     btn,
@@ -235,7 +236,7 @@ pub fn init(self: *Window, app: *App) !void {
 
     {
         const btn = c.gtk_button_new_from_icon_name("tab-new-symbolic");
-        c.gtk_widget_set_tooltip_text(btn, "New Tab");
+        c.gtk_widget_set_tooltip_text(btn, i18n._("New Tab"));
         _ = c.g_signal_connect_data(btn, "clicked", c.G_CALLBACK(&gtkTabNewClick), self, null, c.G_CONNECT_DEFAULT);
         self.headerbar.packStart(btn);
     }
@@ -253,7 +254,7 @@ pub fn init(self: *Window, app: *App) !void {
     // This is a really common issue where people build from source in debug and performance is really bad.
     if (comptime std.debug.runtime_safety) {
         const warning_box = c.gtk_box_new(c.GTK_ORIENTATION_VERTICAL, 0);
-        const warning_text = "⚠️ You're running a debug build of Ghostty! Performance will be degraded.";
+        const warning_text = i18n._("⚠️ You're running a debug build of Ghostty! Performance will be degraded.");
         if (adwaita.versionAtLeast(1, 3, 0)) {
             const banner = c.adw_banner_new(warning_text);
             c.adw_banner_set_revealed(@ptrCast(banner), 1);
@@ -656,10 +657,10 @@ pub fn focusCurrentTab(self: *Window) void {
 }
 
 pub fn onConfigReloaded(self: *Window) void {
-    self.sendToast("Reloaded the configuration");
+    self.sendToast(i18n._("Reloaded the configuration"));
 }
 
-pub fn sendToast(self: *Window, title: [:0]const u8) void {
+pub fn sendToast(self: *Window, title: [*:0]const u8) void {
     const toast = c.adw_toast_new(title);
     c.adw_toast_set_timeout(toast, 3);
     c.adw_toast_overlay_add_toast(@ptrCast(self.toast_overlay), toast);
@@ -900,7 +901,7 @@ fn gtkActionAbout(
             "application-name",
             name,
             "developer-name",
-            "Ghostty Developers",
+            i18n._("Ghostty Developers"),
             "application-icon",
             icon,
             "version",
@@ -919,7 +920,7 @@ fn gtkActionAbout(
             "logo-icon-name",
             icon,
             "title",
-            "About Ghostty",
+            i18n._("About Ghostty"),
             "version",
             build_config.version_string.ptr,
             "website",

src/apprt/gtk/i18n.zig

@@ -33,3 +33,5 @@ pub fn init(alloc: std.mem.Allocator) !void {
 // as libintl.h isn't always easily available (e.g. in musl)
 extern fn bindtextdomain(domainname: [*:0]const u8, dirname: [*:0]const u8) ?[*:0]const u8;
 extern fn textdomain(domainname: [*:0]const u8) ?[*:0]const u8;
+pub extern fn gettext(msgid: [*:0]const u8) [*:0]const u8;
+pub const _ = gettext;

src/build/GhosttyI18n.zig

@@ -15,7 +15,7 @@ pub fn init(b: *std.Build, cfg: *const Config) !GhosttyI18n {
     var steps = std.ArrayList(*std.Build.Step).init(b.allocator);
     errdefer steps.deinit();
 
-    addUpdateStep(b);
+    try addUpdateStep(b);
 
     if (cfg.app_runtime == .gtk) {
         // Output the .mo files used by the GTK apprt
@@ -41,10 +41,10 @@ pub fn install(self: *const GhosttyI18n) void {
     for (self.steps) |step| self.owner.getInstallStep().dependOn(step);
 }
 
-fn addUpdateStep(b: *std.Build) void {
+fn addUpdateStep(b: *std.Build) !void {
     const pot_step = b.step("update-translations", "Update translation files");
 
-    const gettext = b.addSystemCommand(&.{
+    const xgettext = b.addSystemCommand(&.{
         "xgettext",
         "--language=C", // Silence the "unknown extension" errors
         "--from-code=UTF-8",
@@ -63,13 +63,27 @@ fn addUpdateStep(b: *std.Build) void {
         // would be added to the file as its location, which differs for
         // everyone's checkout of the repository.
         // This comes at a cost of losing per-file caching, of course.
-        gettext.addArg(std.fmt.comptimePrint("src/apprt/gtk/ui/{[major]}.{[minor]}/{[name]s}.blp", blp));
+        xgettext.addArg(std.fmt.comptimePrint("src/apprt/gtk/ui/{[major]}.{[minor]}/{[name]s}.blp", blp));
+    }
+
+    var gtk_files = try b.build_root.handle.openDir("src/apprt/gtk", .{ .iterate = true });
+    defer gtk_files.close();
+
+    var walk = try gtk_files.walk(b.allocator);
+    defer walk.deinit();
+
+    while (try walk.next()) |src| {
+        switch (src.kind) {
+            .file => if (!std.mem.endsWith(u8, src.basename, ".zig")) continue,
+            else => continue,
+        }
+        xgettext.addArg((b.pathJoin(&.{ "src/apprt/gtk", src.path })));
     }
 
     // Don't make Zig cache it
-    gettext.has_side_effects = true;
+    xgettext.has_side_effects = true;
 
-    const new_pot = gettext.captureStdOut();
+    const new_pot = xgettext.captureStdOut();
 
     const wf = b.addWriteFiles();
     wf.addCopyFileToSource(new_pot, "po/" ++ domain ++ ".pot");
@@ -77,7 +91,7 @@ fn addUpdateStep(b: *std.Build) void {
     inline for (locales) |locale| {
         const msgmerge = b.addSystemCommand(&.{ "msgmerge", "-q" });
         msgmerge.addFileArg(b.path("po/" ++ locale ++ ".po"));
-        msgmerge.addFileArg(gettext.captureStdOut());
+        msgmerge.addFileArg(xgettext.captureStdOut());
 
         wf.addCopyFileToSource(msgmerge.captureStdOut(), "po/" ++ locale ++ ".po");
     }