Fix .depenv file parsing after #329 (#367)

It failed to parse empty depenv files due to how 'split' function works.
bazelbuild · Jul 3, 2020 · 83962c9 · 83962c9
1 parent d2c4b14
commit 83962c9
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/cargo/cargo_build_script_runner/bin.rs b/cargo/cargo_build_script_runner/bin.rs
@@ -54,6 +54,10 @@ fn main() -> Result<(), String> {
             while let Some(dep_env_path) = args.next() {
                 if let Ok(contents) = read_to_string(dep_env_path) {
                     for line in contents.split('\n') {
+                        // split on empty contents will still produce a single empty string in iterable.
+                        if line.is_empty() {
+                            continue;
+                        }
                         let mut key_val = line.splitn(2, '=');
                         match (key_val.next(), key_val.next()) {
                             (Some(key), Some(value)) => {