tests: allow running outside of a git repository

Make the git information for metrics optional. Useful when running
outside of a classic git repository, for example extracted from a
tarball or a git worktree.

Signed-off-by: Pablo Barbáchano <[email protected]>

tests/framework/properties.py

@@ -72,13 +72,19 @@ def __init__(self):
         self.os = get_os_version()
         self.host_os = get_host_os()
         self.libc_ver = "-".join(platform.libc_ver())
-        self.git_commit_id = run_cmd("git rev-parse HEAD")
-        self.git_branch = run_cmd("git show -s --pretty=%D HEAD")
-        self.git_origin_url = run_cmd("git config --get remote.origin.url")
         self.rust_version = run_cmd("rustc --version |awk '{print $2}'")
         self.buildkite_pipeline_slug = os.environ.get("BUILDKITE_PIPELINE_SLUG")
         self.buildkite_build_number = os.environ.get("BUILDKITE_BUILD_NUMBER")
 
+        if self._in_git_repo():
+            self.git_commit_id = run_cmd("git rev-parse HEAD")
+            self.git_branch = run_cmd("git show -s --pretty=%D HEAD")
+            self.git_origin_url = run_cmd("git config --get remote.origin.url")
+        else:
+            self.git_commit_id = None
+            self.git_branch = None
+            self.git_origin_url = None
+
         self.environment = self._detect_environment()
         if self.is_ec2:
             self.instance = imdsv2_get("/meta-data/instance-type")
@@ -105,6 +111,12 @@ def _detect_environment(self):
         except Exception:
             return "local"
 
+    def _in_git_repo(self):
+        try:
+            run_cmd("git rev-parse --show-toplevel")
+        except subprocess.CalledProcessError:
+            return False
+        return True
+
 
 global_props = GlobalProps()
-# TBD could do a props fixture for tests to use...