first commit

build.rs

@@ -0,0 +1,77 @@
+use std::{
+    env, fs,
+    path::{Path, PathBuf},
+};
+
+fn fnv1a64(parts: &[&[u8]]) -> u64 {
+    let mut hash = 0xcbf29ce484222325u64;
+    for part in parts {
+        for byte in *part {
+            hash ^= u64::from(*byte);
+            hash = hash.wrapping_mul(0x100000001b3);
+        }
+    }
+    hash
+}
+
+fn bundle_manifest(root: &Path, directory: &Path, manifest: &Path, extension: &str) -> String {
+    println!("cargo:rerun-if-changed={}", manifest.display());
+    let manifest_text = fs::read_to_string(manifest)
+        .unwrap_or_else(|error| panic!("{}: {error}", manifest.display()));
+    let mut bundle = String::new();
+    for raw in manifest_text.lines() {
+        let name = raw.trim();
+        if name.is_empty() || name.starts_with('#') {
+            continue;
+        }
+        assert!(
+            name.ends_with(extension)
+                && !name.contains('/')
+                && !name.contains('\\')
+                && !name.contains(".."),
+            "invalid {extension} manifest entry: {name}"
+        );
+        let path = directory.join(name);
+        assert!(
+            path.starts_with(root),
+            "asset path escaped project root: {}",
+            path.display()
+        );
+        println!("cargo:rerun-if-changed={}", path.display());
+        let source =
+            fs::read_to_string(&path).unwrap_or_else(|error| panic!("{}: {error}", path.display()));
+        if !bundle.is_empty() {
+            bundle.push('\n');
+        }
+        bundle.push_str(&source);
+        if !source.ends_with('\n') {
+            bundle.push('\n');
+        }
+    }
+    bundle
+}
+
+fn main() {
+    let root = PathBuf::from(env::var_os("CARGO_MANIFEST_DIR").expect("CARGO_MANIFEST_DIR"));
+    let out = PathBuf::from(env::var_os("OUT_DIR").expect("OUT_DIR"));
+    let css_dir = root.join("src/web/css");
+    let js_dir = root.join("src/web/js");
+    for path in [
+        root.join("src/web/index.html"),
+        root.join("src/web/icons.svg"),
+        root.join("src/web/i18n/en.json"),
+        root.join("src/web/i18n/pl.json"),
+    ] {
+        println!("cargo:rerun-if-changed={}", path.display());
+    }
+    let css = bundle_manifest(&root, &css_dir, &css_dir.join("manifest.txt"), ".css");
+    let js = bundle_manifest(&root, &js_dir, &js_dir.join("manifest.txt"), ".js");
+    let icons = fs::read(root.join("src/web/icons.svg")).expect("read icons.svg");
+    let en = fs::read(root.join("src/web/i18n/en.json")).expect("read en catalog");
+    let pl = fs::read(root.join("src/web/i18n/pl.json")).expect("read pl catalog");
+    let index = fs::read(root.join("src/web/index.html")).expect("read index.html");
+    let asset_id = fnv1a64(&[css.as_bytes(), js.as_bytes(), &icons, &en, &pl, &index]);
+    println!("cargo:rustc-env=POSTFIXADMIN_RS_ASSET_ID={asset_id:016x}");
+    fs::write(out.join("postfixadmin-rs.css"), css).expect("write css bundle");
+    fs::write(out.join("postfixadmin-rs.js"), js).expect("write js bundle");
+}