perf: reduce sidebar git polling overhead

refs #353

1 files changed, 51 insertions, 0 deletions

diff --git a/src/workspace/git/test_support.rs b/src/workspace/git/test_support.rs
new file mode 100644
index 00000000..feba4b3a
--- /dev/null
+++ b/src/workspace/git/test_support.rs
@@ -0,0 +1,51 @@
+use std::path::{Path, PathBuf};
+use std::time::{SystemTime, UNIX_EPOCH};
+
+pub(super) fn temp_test_dir(name: &str) -> PathBuf {
+    let unique = format!(
+        "herdr-workspace-tests-{}-{}-{}",
+        name,
+        std::process::id(),
+        SystemTime::now()
+            .duration_since(UNIX_EPOCH)
+            .unwrap()
+            .as_nanos()
+    );
+    let path = std::env::temp_dir().join(unique);
+    std::fs::create_dir_all(&path).unwrap();
+    path
+}
+
+pub(super) fn write_fake_tracked_repo(root: &Path) {
+    let head_oid = "1111111111111111111111111111111111111111";
+    let upstream_oid = "2222222222222222222222222222222222222222";
+    std::fs::create_dir_all(root.join(".git/refs/heads")).unwrap();
+    std::fs::create_dir_all(root.join(".git/refs/remotes/origin")).unwrap();
+    std::fs::write(root.join(".git/HEAD"), "ref: refs/heads/main\n").unwrap();
+    std::fs::write(root.join(".git/refs/heads/main"), format!("{head_oid}\n")).unwrap();
+    std::fs::write(
+        root.join(".git/refs/remotes/origin/main"),
+        format!("{upstream_oid}\n"),
+    )
+    .unwrap();
+    std::fs::write(
+        root.join(".git/config"),
+        "[branch \"main\"]\n\tremote = origin\n\tmerge = refs/heads/main\n",
+    )
+    .unwrap();
+}
+
+pub(super) fn run_git(cwd: &Path, args: &[&str]) {
+    let output = std::process::Command::new("git")
+        .arg("-C")
+        .arg(cwd)
+        .args(args)
+        .output()
+        .unwrap();
+    assert!(
+        output.status.success(),
+        "git {:?} failed: {}",
+        args,
+        String::from_utf8_lossy(&output.stderr)
+    );
+}