Add build script to force rebuild on template changes

2 files changed, 27 insertions, 0 deletions

diff --git a/testing/Cargo.toml b/testing/Cargo.toml
index 8e7c0f3..6acdaf5 100644
--- a/testing/Cargo.toml
+++ b/testing/Cargo.toml
@@ -3,6 +3,7 @@ name = "askama_testing"
 version = "0.1.0"
 authors = ["Dirkjan Ochtman <dirkjan@ochtman.nl>"]
 workspace = ".."
+build = "build.rs"
 
 [dependencies]
 askama = { path = "../askama" }
diff --git a/testing/build.rs b/testing/build.rs
new file mode 100644
index 0000000..2f868f4
--- /dev/null
+++ b/testing/build.rs
@@ -0,0 +1,26 @@
+use std::env;
+use std::fs::{self, DirEntry};
+use std::io;
+use std::path::Path;
+
+fn visit_dirs(dir: &Path, cb: &Fn(&DirEntry)) -> io::Result<()> {
+    if dir.is_dir() {
+        for entry in try!(fs::read_dir(dir)) {
+            let entry = try!(entry);
+            let path = entry.path();
+            if path.is_dir() {
+                try!(visit_dirs(&path, cb));
+            } else {
+                cb(&entry);
+            }
+        }
+    }
+    Ok(())
+}
+
+fn main() {
+    let root = env::var("CARGO_MANIFEST_DIR").unwrap();
+    visit_dirs(&Path::new(&root).join("templates"), &|e: &DirEntry| {
+        println!("cargo:rerun-if-changed={}", e.path().to_str().unwrap());
+    }).unwrap();
+}