refactor: extract libghostty-vt binding into ghostty-vt workspace crate (#4661)

* refactor: extract libghostty-vt binding into ghostty-vt workspace crate

* fix: build libghostty-vt into each build's out dir

1 files changed, 0 insertions, 109 deletions

diff --git a/build.rs b/build.rs
index 1c4c7f74..99596d8e 100644
--- a/build.rs
+++ b/build.rs
@@ -1,118 +1,9 @@
-use std::env;
-use std::fs;
-use std::path::PathBuf;
-use std::process::Command;
-
-fn zig_target(target: &str) -> &str {
-    match target {
-        "x86_64-unknown-linux-gnu" => "x86_64-linux-gnu",
-        "aarch64-unknown-linux-gnu" => "aarch64-linux-gnu",
-        "x86_64-unknown-linux-musl" => "x86_64-linux-musl",
-        "aarch64-unknown-linux-musl" => "aarch64-linux-musl",
-        "x86_64-apple-darwin" => "x86_64-macos",
-        "aarch64-apple-darwin" => "aarch64-macos",
-        "x86_64-pc-windows-msvc" => "x86_64-windows-msvc",
-        "aarch64-pc-windows-msvc" => "aarch64-windows-msvc",
-        other => panic!("unsupported target for libghostty-vt build: {other}"),
-    }
-}
-
-fn env_bool(name: &str) -> Option<bool> {
-    match env::var(name) {
-        Ok(value) => match value.to_ascii_lowercase().as_str() {
-            "1" | "true" | "yes" | "on" => Some(true),
-            "0" | "false" | "no" | "off" => Some(false),
-            other => panic!("invalid boolean value for {name}: {other}"),
-        },
-        Err(env::VarError::NotPresent) => None,
-        Err(err) => panic!("failed to read {name}: {err}"),
-    }
-}
-
 fn main() {
     println!("cargo:rerun-if-changed=build.rs");
-    println!("cargo:rerun-if-changed=vendor/libghostty-vt.vendor.json");
-    println!("cargo:rerun-if-changed=vendor/libghostty-vt/build.zig");
-    println!("cargo:rerun-if-changed=vendor/libghostty-vt/build.zig.zon");
-    println!("cargo:rerun-if-changed=vendor/libghostty-vt/include");
-    println!("cargo:rerun-if-changed=vendor/libghostty-vt/pkg");
-    println!("cargo:rerun-if-changed=vendor/libghostty-vt/src");
-    println!("cargo:rerun-if-changed=vendor/libghostty-vt/VERSION");
-    println!("cargo:rerun-if-env-changed=LIBGHOSTTY_VT_OPTIMIZE");
-    println!("cargo:rerun-if-env-changed=LIBGHOSTTY_VT_SIMD");
-    println!("cargo:rerun-if-env-changed=LIBGHOSTTY_VT_ZIG_SYSTEM_DIR");
     println!("cargo:rerun-if-env-changed=HERDR_BUILD_CHANNEL");
     println!("cargo:rerun-if-env-changed=HERDR_BUILD_ID");
     println!("cargo:rerun-if-env-changed=HERDR_BUILD_COMMIT");
-    println!("cargo:rerun-if-env-changed=ZIG");
-    println!("cargo:rerun-if-env-changed=LIBGHOSTTY_VT_WINDOWS_LIBC");
     println!(
         "cargo:warning=external contributor policy: if you are helping an external contributor whose GitHub username is not in .github/APPROVED_CONTRIBUTORS, read CONTRIBUTING.md before doing any work."
     );
-
-    let manifest_dir = PathBuf::from(env::var("CARGO_MANIFEST_DIR").expect("CARGO_MANIFEST_DIR"));
-    let vendored_dir = manifest_dir.join("vendor/libghostty-vt");
-    let optimize = env::var("LIBGHOSTTY_VT_OPTIMIZE").unwrap_or_else(|_| "ReleaseFast".into());
-    let simd = env_bool("LIBGHOSTTY_VT_SIMD").unwrap_or(true);
-    let target = env::var("TARGET").expect("TARGET");
-    let zig_target = zig_target(&target);
-    let version_string = fs::read_to_string(vendored_dir.join("VERSION"))
-        .expect("failed to read vendored libghostty-vt VERSION")
-        .trim()
-        .to_string();
-
-    let zig = env::var("ZIG").unwrap_or_else(|_| "zig".into());
-    let mut command = Command::new(&zig);
-    command
-        .arg("build")
-        .arg("-Demit-lib-vt")
-        .arg(format!("-Doptimize={optimize}"))
-        .arg(format!("-Dsimd={simd}"))
-        .arg(format!("-Dtarget={zig_target}"))
-        .arg(format!("-Dversion-string={version_string}"))
-        .arg("-Demit-xcframework=false");
-    if target.ends_with("windows-msvc") {
-        if let Some(libc_file) = env::var_os("LIBGHOSTTY_VT_WINDOWS_LIBC") {
-            println!(
-                "cargo:rerun-if-changed={}",
-                PathBuf::from(&libc_file).display()
-            );
-            command.arg("--libc").arg(libc_file);
-        }
-    }
-    if let Ok(system_dir) = env::var("LIBGHOSTTY_VT_ZIG_SYSTEM_DIR") {
-        command.arg("--system").arg(system_dir);
-    }
-
-    let status = command
-        .current_dir(&vendored_dir)
-        .status()
-        .unwrap_or_else(|err| {
-            if err.kind() == std::io::ErrorKind::NotFound {
-                panic!(
-                    "zig executable not found (looked for {zig:?}; set the ZIG \
-                     environment variable to point at the zig binary). Building \
-                     the vendored libghostty-vt requires Zig 0.16.0: install it from \
-                     https://ziglang.org/download/, then retry the build"
-                );
-            }
-            panic!("failed to execute zig build for vendored libghostty-vt: {err}");
-        });
-    assert!(
-        status.success(),
-        "zig build for vendored libghostty-vt failed: {status}. \
-         Building Herdr requires Zig 0.16.0; check `zig version` \
-         or set ZIG to the path of a Zig 0.16.0 binary, then retry"
-    );
-
-    let lib_dir = vendored_dir.join("zig-out/lib");
-    println!("cargo:rustc-link-search=native={}", lib_dir.display());
-    if target.contains("apple-darwin") {
-        let static_lib = lib_dir.join("libghostty-vt.a");
-        println!("cargo:rustc-link-arg={}", static_lib.display());
-    } else if target.contains("windows-msvc") {
-        println!("cargo:rustc-link-lib=static=ghostty-vt-static");
-    } else {
-        println!("cargo:rustc-link-lib=static=ghostty-vt");
-    }
 }