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build: create new build options per compile step

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This is going to let us put more object-specific config into the options
rather than affecting every object build per build.
This commit is contained in:
Mitchell Hashimoto
2024-02-04 19:40:59 -08:00
parent 95d855b225
commit c2b3f99faa
2 changed files with 40 additions and 37 deletions
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25
src/build_config.zig
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@@ -9,6 +9,7 @@ const assert = std.debug.assert;
const apprt = @import("apprt.zig");
const font = @import("font/main.zig");
const rendererpkg = @import("renderer.zig");
const WasmTarget = @import("os/wasm/target.zig").Target;
/// The build configuratin options. This may not be all available options
/// to `zig build` but it contains all the options that the Ghostty source
@@ -18,6 +19,7 @@ const rendererpkg = @import("renderer.zig");
/// between options, make it easy to copy and mutate options for different
/// build types, etc.
pub const BuildConfig = struct {
version: std.SemanticVersion = .{ .major = 0, .minor = 0, .patch = 0 },
static: bool = false,
flatpak: bool = false,
libadwaita: bool = false,
@@ -25,8 +27,14 @@ pub const BuildConfig = struct {
renderer: rendererpkg.Impl = .opengl,
font_backend: font.Backend = .freetype,
/// The target runtime for the wasm build and whether to use wasm shared
/// memory or not. These are both legacy wasm-specific options that we
/// will probably have to revisit when we get back to work on wasm.
wasm_target: WasmTarget = .browser,
wasm_shared: bool = true,
/// Configure the build options with our values.
pub fn addOptions(self: BuildConfig, step: *std.Build.Step.Options) void {
pub fn addOptions(self: BuildConfig, step: *std.Build.Step.Options) !void {
// We need to break these down individual because addOption doesn't
// support all types.
step.addOption(bool, "flatpak", self.flatpak);
@@ -34,6 +42,18 @@ pub const BuildConfig = struct {
step.addOption(apprt.Runtime, "app_runtime", self.app_runtime);
step.addOption(font.Backend, "font_backend", self.font_backend);
step.addOption(rendererpkg.Impl, "renderer", self.renderer);
step.addOption(WasmTarget, "wasm_target", self.wasm_target);
step.addOption(bool, "wasm_shared", self.wasm_shared);
// Our version. We also add the string version so we don't need
// to do any allocations at runtime.
var buf: [64]u8 = undefined;
step.addOption(std.SemanticVersion, "app_version", self.version);
step.addOption([:0]const u8, "app_version_string", try std.fmt.bufPrintZ(
&buf,
"{}",
.{self.version},
));
}
/// Rehydrate our BuildConfig from the comptime options. Note that not all
@@ -41,11 +61,14 @@ pub const BuildConfig = struct {
/// to see what is and isn't available.
pub fn fromOptions() BuildConfig {
return .{
.version = options.app_version,
.flatpak = options.flatpak,
.libadwaita = options.libadwaita,
.app_runtime = std.meta.stringToEnum(apprt.Runtime, @tagName(options.app_runtime)).?,
.font_backend = std.meta.stringToEnum(font.Backend, @tagName(options.font_backend)).?,
.renderer = std.meta.stringToEnum(rendererpkg.Impl, @tagName(options.renderer)).?,
.wasm_target = std.meta.stringToEnum(WasmTarget, @tagName(options.wasm_target)).?,
.wasm_shared = options.wasm_shared,
};
}
};