feat(json): resolve bundled Composer schema files via build.rs

JsonFile's schema paths previously relied on php_dir() (__DIR__), which has
no runtime equivalent. Add a build.rs that copies composer-schema.json and
composer-lock-schema.json next to the built executable, and resolve them with
std::env::current_exe(). FilesystemRepository now embeds InstalledVersions.php
directly via include_str! instead of reading it through php_dir().

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

1 files changed, 37 insertions, 0 deletions

diff --git a/crates/shirabe/build.rs b/crates/shirabe/build.rs
new file mode 100644
index 0000000..d98b07e
--- /dev/null
+++ b/crates/shirabe/build.rs
@@ -0,0 +1,37 @@
+use std::path::PathBuf;
+
+// Composer ships its JSON schemas in res/ and JsonFile resolves them via __DIR__.
+// We copy those schema files next to the built executable so they can be located
+// at runtime through std::env::current_exe().
+fn main() {
+    let manifest_dir = PathBuf::from(std::env::var("CARGO_MANIFEST_DIR").unwrap());
+    let out_dir = PathBuf::from(std::env::var("OUT_DIR").unwrap());
+
+    // OUT_DIR is target/<profile>/build/<pkg>-<hash>/out; its 3rd ancestor is target/<profile>.
+    let target_profile_dir = out_dir
+        .ancestors()
+        .nth(3)
+        .expect("OUT_DIR has an unexpected layout");
+
+    let composer_res = manifest_dir.join("../../composer/res");
+    let files = ["composer-schema.json", "composer-lock-schema.json"];
+
+    // Binaries live in target/<profile>, test/example binaries in target/<profile>/deps;
+    // populate a res/ directory next to both so current_exe()/../res resolves either way.
+    for dest_dir in [
+        target_profile_dir.join("res"),
+        target_profile_dir.join("deps").join("res"),
+    ] {
+        std::fs::create_dir_all(&dest_dir).unwrap();
+        for file in files {
+            std::fs::copy(composer_res.join(file), dest_dir.join(file)).unwrap();
+        }
+    }
+
+    for file in files {
+        println!(
+            "cargo:rerun-if-changed={}",
+            composer_res.join(file).display()
+        );
+    }
+}