gtk: use versioned directories to store blueprint files

src/apprt/gtk/Builder.zig

@@ -9,45 +9,101 @@ const gobject = @import("gobject");
 resource_name: [:0]const u8,
 builder: ?*gtk.Builder,
 
-pub fn init(comptime name: []const u8, comptime kind: enum { blp, ui }) Builder {
-    comptime {
+pub fn init(
+    /// The "name" of the resource.
+    comptime name: []const u8,
+    /// The major version of the minimum Adwaita version that is required to use
+    /// this resource.
+    comptime major: u16,
+    /// The minor version of the minimum Adwaita version that is required to use
+    /// this resource.
+    comptime minor: u16,
+    /// `blp` signifies that the resource is a Blueprint that has been compiled
+    /// to GTK Builder XML at compile time. `ui` signifies that the resource is
+    /// a GTK Builder XML file that is included in the Ghostty source (perhaps
+    /// because the Blueprint compiler on some target platforms cannot compile a
+    /// Blueprint that generates the necessary resources).
+    comptime kind: enum { blp, ui },
+) Builder {
+    const resource_path = comptime resource_path: {
+        const gresource = @import("gresource.zig");
         switch (kind) {
             .blp => {
-                // Use @embedFile to make sure that the file exists at compile
-                // time. Zig _should_ discard the data so that it doesn't end
-                // up in the final executable. At runtime we will load the data
-                // from a GResource.
-                _ = @embedFile("ui/" ++ name ++ ".blp");
-
                 // Check to make sure that our file is listed as a
                 // `blueprint_file` in `gresource.zig`. If it isn't Ghostty
                 // could crash at runtime when we try and load a nonexistent
                 // GResource.
-                const gresource = @import("gresource.zig");
-                for (gresource.blueprint_files) |blueprint_file| {
-                    if (std.mem.eql(u8, blueprint_file.name, name)) break;
+                for (gresource.blueprint_files) |file| {
+                    if (major != file.major or minor != file.minor or !std.mem.eql(u8, file.name, name)) continue;
+                    // Use @embedFile to make sure that the `.blp` file exists
+                    // at compile time. Zig _should_ discard the data so that
+                    // it doesn't end up in the final executable. At runtime we
+                    // will load the data from a GResource.
+                    const blp_filename = std.fmt.comptimePrint(
+                        "ui/{d}.{d}/{s}.blp",
+                        .{
+                            file.major,
+                            file.minor,
+                            file.name,
+                        },
+                    );
+                    _ = @embedFile(blp_filename);
+                    break :resource_path std.fmt.comptimePrint(
+                        "/com/mitchellh/ghostty/ui/{d}.{d}/{s}.ui",
+                        .{
+                            file.major,
+                            file.minor,
+                            file.name,
+                        },
+                    );
                 } else @compileError("missing blueprint file '" ++ name ++ "' in gresource.zig");
             },
             .ui => {
-                // Use @embedFile to make sure that the file exists at compile
-                // time. Zig _should_ discard the data so that it doesn't end
-                // up in the final executable. At runtime we will load the data
-                // from a GResource.
-                _ = @embedFile("ui/" ++ name ++ ".ui");
-
                 // Check to make sure that our file is listed as a `ui_file` in
                 // `gresource.zig`. If it isn't Ghostty could crash at runtime
                 // when we try and load a nonexistent GResource.
-                const gresource = @import("gresource.zig");
-                for (gresource.ui_files) |ui_file| {
-                    if (std.mem.eql(u8, ui_file, name)) break;
+                for (gresource.ui_files) |file| {
+                    if (major != file.major or minor != file.minor or !std.mem.eql(u8, file.name, name)) continue;
+                    // Use @embedFile to make sure that the `.ui` file exists
+                    // at compile time. Zig _should_ discard the data so that
+                    // it doesn't end up in the final executable. At runtime we
+                    // will load the data from a GResource.
+                    const ui_filename = std.fmt.comptimePrint(
+                        "ui/{d}.{d}/{s}.ui",
+                        .{
+                            file.major,
+                            file.minor,
+                            file.name,
+                        },
+                    );
+                    _ = @embedFile(ui_filename);
+                    // Also use @embedFile to make sure that a matching `.blp`
+                    // file exists at compile time. Zig _should_ discard the
+                    // data so that it doesn't end up in the final executable.
+                    const blp_filename = std.fmt.comptimePrint(
+                        "ui/{d}.{d}/{s}.blp",
+                        .{
+                            file.major,
+                            file.minor,
+                            file.name,
+                        },
+                    );
+                    _ = @embedFile(blp_filename);
+                    break :resource_path std.fmt.comptimePrint(
+                        "/com/mitchellh/ghostty/ui/{d}.{d}/{s}.ui",
+                        .{
+                            file.major,
+                            file.minor,
+                            file.name,
+                        },
+                    );
                 } else @compileError("missing ui file '" ++ name ++ "' in gresource.zig");
             },
         }
-    }
+    };
 
     return .{
-        .resource_name = "/com/mitchellh/ghostty/ui/" ++ name ++ ".ui",
+        .resource_name = resource_path,
         .builder = null,
     };
 }

src/apprt/gtk/ClipboardConfirmationWindow.zig

@@ -65,14 +65,14 @@ fn init(
 ) !void {
     var builder = switch (DialogType) {
         adw.AlertDialog => switch (request) {
-            .osc_52_read => Builder.init("ccw-osc-52-write-15", .blp),
-            .osc_52_write => Builder.init("ccw-osc-52-write-15", .blp),
-            .paste => Builder.init("ccw-paste-15", .blp),
+            .osc_52_read => Builder.init("ccw-osc-52-read", 1, 5, .blp),
+            .osc_52_write => Builder.init("ccw-osc-52-write", 1, 5, .blp),
+            .paste => Builder.init("ccw-paste", 1, 5, .blp),
         },
         adw.MessageDialog => switch (request) {
-            .osc_52_read => Builder.init("ccw-osc-52-write-12", .ui),
-            .osc_52_write => Builder.init("ccw-osc-52-write-12", .ui),
-            .paste => Builder.init("ccw-paste-12", .ui),
+            .osc_52_read => Builder.init("ccw-osc-52-read", 1, 2, .ui),
+            .osc_52_write => Builder.init("ccw-osc-52-write", 1, 2, .ui),
+            .paste => Builder.init("ccw-paste", 1, 2, .ui),
         },
         else => unreachable,
     };

src/apprt/gtk/Surface.zig

@@ -1050,7 +1050,7 @@ pub fn promptTitle(self: *Surface) !void {
     if (!adwaita.versionAtLeast(1, 5, 0)) return;
     const window = self.container.window() orelse return;
 
-    var builder = Builder.init("prompt-title-dialog", .blp);
+    var builder = Builder.init("prompt-title-dialog", 1, 5, .blp);
     defer builder.deinit();
 
     const entry = builder.getObject(gtk.Entry, "title_entry").?;

src/apprt/gtk/blueprint_compiler.zig

@@ -15,14 +15,10 @@ pub fn main() !void {
 
     const major = try std.fmt.parseUnsigned(u8, it.next() orelse return error.NoMajorVersion, 10);
     const minor = try std.fmt.parseUnsigned(u8, it.next() orelse return error.NoMinorVersion, 10);
-    const micro = try std.fmt.parseUnsigned(u8, it.next() orelse return error.NoMicroVersion, 10);
     const output = it.next() orelse return error.NoOutput;
     const input = it.next() orelse return error.NoInput;
 
-    if (c.ADW_MAJOR_VERSION < major or
-        (c.ADW_MAJOR_VERSION == major and c.ADW_MINOR_VERSION < minor) or
-        (c.ADW_MAJOR_VERSION == major and c.ADW_MINOR_VERSION == minor and c.ADW_MICRO_VERSION < micro))
-    {
+    if (c.ADW_MAJOR_VERSION < major or (c.ADW_MAJOR_VERSION == major and c.ADW_MINOR_VERSION < minor)) {
         // If the Adwaita version is too old, generate an "empty" file.
         const file = try std.fs.createFileAbsolute(output, .{
             .truncate = true,

src/apprt/gtk/gresource.zig

@@ -53,26 +53,31 @@ const icons = [_]struct {
     },
 };
 
-pub const ui_files = [_][]const u8{
-    "ccw-osc-52-read-12",
-    "ccw-osc-52-write-12",
-    "ccw-paste-12",
+pub const VersionedBuilderXML = struct {
+    major: u16,
+    minor: u16,
+    name: []const u8,
+};
+
+pub const ui_files = [_]VersionedBuilderXML{
+    .{ .major = 1, .minor = 2, .name = "ccw-osc-52-read" },
+    .{ .major = 1, .minor = 2, .name = "ccw-osc-52-write" },
+    .{ .major = 1, .minor = 2, .name = "ccw-paste" },
 };
 
 pub const VersionedBlueprint = struct {
     major: u16,
     minor: u16,
-    micro: u16,
     name: []const u8,
 };
 
 pub const blueprint_files = [_]VersionedBlueprint{
-    .{ .major = 1, .minor = 5, .micro = 0, .name = "prompt-title-dialog" },
-    .{ .major = 1, .minor = 0, .micro = 0, .name = "menu-surface-context_menu" },
-    .{ .major = 1, .minor = 0, .micro = 0, .name = "menu-window-titlebar_menu" },
-    .{ .major = 1, .minor = 5, .micro = 0, .name = "ccw-osc-52-read-15" },
-    .{ .major = 1, .minor = 5, .micro = 0, .name = "ccw-osc-52-write-15" },
-    .{ .major = 1, .minor = 5, .micro = 0, .name = "ccw-paste-15" },
+    .{ .major = 1, .minor = 5, .name = "prompt-title-dialog" },
+    .{ .major = 1, .minor = 0, .name = "menu-surface-context_menu" },
+    .{ .major = 1, .minor = 0, .name = "menu-window-titlebar_menu" },
+    .{ .major = 1, .minor = 5, .name = "ccw-osc-52-read" },
+    .{ .major = 1, .minor = 5, .name = "ccw-osc-52-write" },
+    .{ .major = 1, .minor = 5, .name = "ccw-paste" },
 };
 
 pub fn main() !void {
@@ -126,15 +131,20 @@ pub fn main() !void {
     );
     for (ui_files) |ui_file| {
         try writer.print(
-            "    <file compressed=\"true\" preprocess=\"xml-stripblanks\" alias=\"{0s}.ui\">src/apprt/gtk/ui/{0s}.ui</file>\n",
-            .{ui_file},
+            "    <file compressed=\"true\" preprocess=\"xml-stripblanks\" alias=\"{0d}.{1d}/{2s}.ui\">src/apprt/gtk/ui/{0d}.{1d}/{2s}.ui</file>\n",
+            .{ ui_file.major, ui_file.minor, ui_file.name },
         );
     }
     for (extra_ui_files.items) |ui_file| {
-        try writer.print(
-            "    <file compressed=\"true\" preprocess=\"xml-stripblanks\" alias=\"{s}\">{s}</file>\n",
-            .{ std.fs.path.basename(ui_file), ui_file },
-        );
+        const stem = std.fs.path.stem(ui_file);
+        for (blueprint_files) |file| {
+            if (!std.mem.eql(u8, file.name, stem)) continue;
+            try writer.print(
+                "    <file compressed=\"true\" preprocess=\"xml-stripblanks\" alias=\"{d}.{d}/{s}.ui\">{s}</file>\n",
+                .{ file.major, file.minor, file.name, ui_file },
+            );
+            break;
+        } else return error.BlueprintNotFound;
     }
     try writer.writeAll(
         \\  </gresource>
@@ -156,11 +166,19 @@ pub const dependencies = deps: {
         index += 1;
     }
     for (ui_files) |ui_file| {
-        deps[index] = std.fmt.comptimePrint("src/apprt/gtk/ui/{s}.ui", .{ui_file});
+        deps[index] = std.fmt.comptimePrint("src/apprt/gtk/ui/{d}.{d}/{s}.ui", .{
+            ui_file.major,
+            ui_file.minor,
+            ui_file.name,
+        });
         index += 1;
     }
     for (blueprint_files) |blueprint_file| {
-        deps[index] = std.fmt.comptimePrint("src/apprt/gtk/ui/{s}.blp", .{blueprint_file.name});
+        deps[index] = std.fmt.comptimePrint("src/apprt/gtk/ui/{d}.{d}/{s}.blp", .{
+            blueprint_file.major,
+            blueprint_file.minor,
+            blueprint_file.name,
+        });
         index += 1;
     }
     break :deps deps;

src/apprt/gtk/menu.zig

@@ -41,7 +41,7 @@ pub fn Menu(
                 else => unreachable,
             };
 
-            var builder = Builder.init("menu-" ++ object_type ++ "-" ++ menu_name, .blp);
+            var builder = Builder.init("menu-" ++ object_type ++ "-" ++ menu_name, 1, 0, .blp);
             defer builder.deinit();
 
             const menu_model = builder.getObject(gio.MenuModel, "menu").?;

src/apprt/gtk/ui/README.md

@@ -0,0 +1,21 @@
+# GTK UI files
+
+This directory is for storing GTK resource definitions. With one exception, the
+files should be be in the Blueprint markup language.
+
+Resource files should be stored in directories that represent the minimum
+Adwaita version needed to use that resource. Resource files should also be
+formatted using `blueprint-compiler format` as well to ensure consistency.
+
+The one exception to files being in Blueprint markup language is when Adwaita
+features are used that the `blueprint-compiler` on a supported platform does not
+compile. For example, Debian 12 includes Adwaita 1.2 and `blueprint-compiler`
+0.6.0. Adwaita 1.2 includes support for `MessageDialog` but `blueprint-compiler`
+0.6.0 does not. In cases like that the Blueprint markup should be compiled on a
+platform that provides a new enough `blueprint-compiler` and the resulting `.ui`
+file should be committed to the Ghostty source code. Care should be taken that
+the `.blp` file and the `.ui` file remain in sync.
+
+In all other cases only the `.blp` should be committed to the Ghostty source
+code. The build process will use `blueprint-compiler` to generate the `.ui`
+files necessary at runtime.

src/build/SharedDeps.zig

@@ -514,10 +514,23 @@ pub fn add(
                             blueprint_compiler.addArgs(&.{
                                 b.fmt("{d}", .{blueprint_file.major}),
                                 b.fmt("{d}", .{blueprint_file.minor}),
-                                b.fmt("{d}", .{blueprint_file.micro}),
                             });
-                            const ui_file = blueprint_compiler.addOutputFileArg(b.fmt("{s}.ui", .{blueprint_file.name}));
-                            blueprint_compiler.addFileArg(b.path(b.fmt("src/apprt/gtk/ui/{s}.blp", .{blueprint_file.name})));
+                            const ui_file = blueprint_compiler.addOutputFileArg(b.fmt(
+                                "{d}.{d}/{s}.ui",
+                                .{
+                                    blueprint_file.major,
+                                    blueprint_file.minor,
+                                    blueprint_file.name,
+                                },
+                            ));
+                            blueprint_compiler.addFileArg(b.path(b.fmt(
+                                "src/apprt/gtk/ui/{d}.{d}/{s}.blp",
+                                .{
+                                    blueprint_file.major,
+                                    blueprint_file.minor,
+                                    blueprint_file.name,
+                                },
+                            )));
                             generate.addFileArg(ui_file);
                         }