set git email so test passes on Ubuntu container

Author: indirect

src/toolchain/driver.rs

@@ -98,8 +98,8 @@ pub(crate) struct GitContext {
 
 impl GitContext {
     pub(crate) fn from_dir(path: &PathBuf) -> Result<Self> {
-        let commit = git_cmd(path, &["rev-parse", "HEAD"])?;
-        let tree = git_cmd(path, &["rev-parse", "HEAD^{tree}"])?;
+        let commit = git_cmd(path, &["rev-parse", "HEAD", "--"])?;
+        let tree = git_cmd(path, &["rev-parse", "HEAD^{tree}", "--"])?;
         let source_uri = git_cmd(path, &["remote", "get-url", "origin"]).unwrap_or_default();
         Ok(Self {
             commit,
@@ -400,7 +400,18 @@ mod tests {
             .output()
             .unwrap();
         std::process::Command::new("git")
-            .args(["commit", "--allow-empty", "-m", "init"])
+            .args(["config", "user.email", "kettle-ci@lunal.dev"])
+            .current_dir(tmp.path())
+            .output()
+            .unwrap();
+        std::process::Command::new("git")
+            .args([
+                "commit",
+                "--author='Kettle CI <kettle-ci@lunal.dev>'",
+                "--allow-empty",
+                "-m",
+                "init",
+            ])
             .current_dir(tmp.path())
             .output()
             .unwrap();