USB-AIO für automatische Geräteprüfung

gui/build.rs

@@ -0,0 +1,39 @@
+use std::{env, fs, path::Path};
+fn main() {
+    println!("cargo:rerun-if-env-changed=CSR_BUILD_ID");
+    println!("cargo:rerun-if-changed=src");
+    println!("cargo:rerun-if-changed=../scripts/inventory-sync.py");
+    println!("cargo:rerun-if-changed=Cargo.lock");
+    fn hash_dir(path: &Path, hash: &mut u64) {
+        let mut files: Vec<_> = fs::read_dir(path)
+            .unwrap()
+            .flatten()
+            .map(|e| e.path())
+            .collect();
+        files.sort();
+        for p in files {
+            if p.is_dir() {
+                hash_dir(&p, hash);
+            } else {
+                for b in fs::read(p).unwrap() {
+                    *hash = (*hash ^ b as u64).wrapping_mul(1099511628211);
+                }
+            }
+        }
+    }
+    let mut hash = 14695981039346656037u64;
+    hash_dir(Path::new("src"), &mut hash);
+    for file in [
+        "../scripts/inventory-sync.py",
+        "Cargo.toml",
+        "Cargo.lock",
+        "build.rs",
+    ] {
+        for b in fs::read(file).unwrap() {
+            hash = (hash ^ b as u64).wrapping_mul(1099511628211);
+        }
+    }
+    let id = env::var("CSR_BUILD_ID")
+        .unwrap_or_else(|_| format!("{}-{hash:016x}", env::var("CARGO_PKG_VERSION").unwrap()));
+    println!("cargo:rustc-env=CSR_BUILD_ID={id}");
+}