Don’t rebuild library when tests changes.

SimonSapin · SimonSapin · commit 996fff28aad2 · 2016-01-25T20:38:15.000+01:00
Cargo’s default is to re-run build scripts (and therefore rebuild stuff)
whenever any file changes.
We can be more precise.
diff --git a/build.rs b/build.rs
@@ -29,7 +29,9 @@ fn main() {
 
     named_entities_to_phf(
         &Path::new(&manifest_dir).join("data/entities.json"),
-        &Path::new(&env::var("OUT_DIR").unwrap()).join("named_entities.rs"))
+        &Path::new(&env::var("OUT_DIR").unwrap()).join("named_entities.rs"));
+
+    println!("cargo:rerun-if-changed={}", rules_rs.display());
 }
 
 #[cfg(feature = "codegen")]

Original file line number	Diff line number	Diff line change
`@@ -29,7 +29,9 @@ fn main() {`
`29`	`29`
`30`	`30`	`named_entities_to_phf(`
`31`	`31`	`&Path::new(&manifest_dir).join("data/entities.json"),`
`32`		`- &Path::new(&env::var("OUT_DIR").unwrap()).join("named_entities.rs"))`
	`32`	`+ &Path::new(&env::var("OUT_DIR").unwrap()).join("named_entities.rs"));`
	`33`	`+`
	`34`	`+ println!("cargo:rerun-if-changed={}", rules_rs.display());`
`33`	`35`	`}`
`34`	`36`
`35`	`37`	`#[cfg(feature = "codegen")]`