sim: Add dependency output
Output the names of source files used to build the C library so that
Cargo knows to rerun the compilation if these have changed.
extern crate gcc;
+use std::fs;
+use std::io;
+use std::path::Path;
+
fn main() {
let mut conf = gcc::Config::new();
@@ -12,4 +16,26 @@ fn main() {
conf.include("../zephyr/include");
conf.debug(true);
conf.compile("libbootutil.a");
+ walk_dir("../boot").unwrap();
+ walk_dir("csupport").unwrap();
+ walk_dir("../zephyr").unwrap();
+}
+
+// Output the names of all files within a directory so that Cargo knows when to rebuild.
+fn walk_dir<P: AsRef<Path>>(path: P) -> io::Result<()> {
+ for ent in fs::read_dir(path.as_ref())? {
+ let ent = ent?;
+ let p = ent.path();
+ if p.is_dir() {
+ walk_dir(p)?;
+ } else {
+ // Note that non-utf8 names will fail.
+ let name = p.to_str().unwrap();
+ if name.ends_with(".c") || name.ends_with(".h") {
+ println!("cargo:rerun-if-changed={}", name);
+ }
+ }
+ }
+
+ Ok(())
}
