This fixes regressions in the flatpak/snap builds, and knock-on stuff
that was discovered as as a result:
* Update the Zig versions in the flatpak/snap build configuration files.
* Restore the classic -Dpatch-rpath option, and add a new -Dpatch-interp
option. This ensures that the snap can still use -Dpatch-rpath
correctly.
* There seems to be an issue in Zig when parsing IPv6 addresses that
leads to issues loading resolv.conf files; when trying to load a
nameserver that has an IPv6 address with a numeric interface index as
the scoped zone ID, Zig will try to resolve the interface as a name
rather than just use the index. This is coming up in snap builds
because the build process seems to, by default, use the exhaustive
/run/systemd/resolve/resolv.conf file, versus the simpler stub
(stub-resolv.conf) file. We work around this for the time being by
linking the stub at the end of the Zig part, overwriting the link to
the non-stub file.
* Fixed gtk4-layer-shell packaging - the migration to external
translate-c meant that non-system builds of the dependency were not
handing the local gtk4-layer-shell headers over for translation. Now,
instead, we've extracted the management of the gtk4-layer-shell source
and wayland-protocols generation to a locally-cached object so that
the source can be shared by both C translation and the library build
in a way that is not coupled to any particular step.
This commit represents the majority of the work necessary to upgrade
Ghostty to use Zig 0.16.0.
Key parts:
* In addition to its previous responsibilities, the global state now
houses state for global I/O implementations and the process
environment. It is now also utilized in the main application along
with the C library. Where necessary, global state is isolated from key
parts of the implementation (e.g., in libghostty subsystems), and it's
expected that this list will grow.
* We currently manage our own C translation layer where necessary. In
these cases, cImport has been removed in favor of the new external
translate-c package. Due to fixes that have needed be made to properly
translate the dependencies that were swapped out, as mentioned, we
have had to backport fixes from the current translate-c package (and
the upstream Arocc dependency). We will host this ourselves until Zig
0.17.0 is released with these fixes.
* Where necessary (only a small number of cases), some stdlib code from
0.15.2 (and even from 0.17.0) has been taken, adopted, and vendored in
lib/compat.
Co-authored-by: Leah Amelia Chen <hi@pluie.me>
Lazy dependencies are only fetched if the build script would actually
reach a usage of that dependency at runtime (when the `lazyDependency`
function is called). This can save a lot of network traffic, disk uage,
and time because we don't have to fetch and build dependencies that we
don't actually need.
Prior to this commit, Ghostty fetched almost everything for all
platforms and configurations all the time. This commit reverses that to
fetching almost nothing until it's actually needed.
There are very little downsides to doing this[1]. One downside is `zig
build --fetch` doesn't fetch lazy dependencies, but we don't rely on
this command for packaging and suggest using our custom shell script
that downloads a cached list of URLs (`build.zig.zon.txt`).
This commit doesn't cover 100% of dependencies, since some provide no
benefit to make lazy while the complexity to make them lazy is higher
(in code style typically).
Conversely, some simple dependencies are marked lazy even if they're
almost always needed if they don't introduce any real complexity to the
code, because there is very little downside to do so.
[1]: https://ziggit.dev/t/lazy-dependencies-best-dependencies/5509/5
By linking using the pkg-config name we gain the compiler flags in pkgconf
for linking, specifically the -I <headers> to include system-installed
headers. This allows the gtk4-layer-shell pkg to not require the source
files specified in the `pkg/gtk4-layer-shell/build.zig.zon`.
pkg(gtk4-layer-shell): Refactor to allow dynamic linking
Refactored `pkg/gtk4-layer-shell/build.zig` to have similar structure
to `pkg/oniguruma/build.zig`.
Now dynamic link using pkgconfig, this adds pkgconfig compiler flags.
So we are now using system-installed headers to resolve @cInclude().
As of now `gtk4-layer-shell` is unavailable on recent, stable releases
of many distros (Debian 12, Ubuntu 24.04, openSUSE Leap & Tumbleweed, etc.)
and outdated on many others (Nixpkgs 24.11/unstable, Fedora 41, etc.)
This is inconvenient for our users and severely limits where the quick
terminal can be used. As a result we then build gtk4-layer-shell ourselves
by default unless `--system` or `-fsys=gtk4-layer-shell` are specified.
This also allows me to add an idiomatic Zig API on top of the library
and avoiding adding even more raw C code in the GTK apprt.
Since we now build gtk4-layer-shell it should be theoretically available
on all Linux systems we target. As such, the `-Dgtk-layer-shell` build
option has been removed. This is somewhat of an experimental change as
I don't know if gtk4-layer-shell works perfectly across all distros, and
we can always add the option back if need be.
