move git commands to common/git.py (#31921)

move git into common/git.py
old-commit-hash: 4fbc8a389662f82018eeabd03294cc761b87ce75

common/git.py

@@ -0,0 +1,42 @@
+import subprocess
+from openpilot.common.utils import cache
+from openpilot.common.run import run_cmd, run_cmd_default
+
+
+@cache
+def get_commit(branch: str = "HEAD") -> str:
+  return run_cmd_default(["git", "rev-parse", branch])
+
+
+@cache
+def get_commit_date(commit: str = "HEAD") -> str:
+  return run_cmd_default(["git", "show", "--no-patch", "--format='%ct %ci'", commit])
+
+
+@cache
+def get_short_branch() -> str:
+  return run_cmd_default(["git", "rev-parse", "--abbrev-ref", "HEAD"])
+
+
+@cache
+def get_branch() -> str:
+  return run_cmd_default(["git", "rev-parse", "--abbrev-ref", "--symbolic-full-name", "@{u}"])
+
+
+@cache
+def get_origin() -> str:
+  try:
+    local_branch = run_cmd(["git", "name-rev", "--name-only", "HEAD"])
+    tracking_remote = run_cmd(["git", "config", "branch." + local_branch + ".remote"])
+    return run_cmd(["git", "config", "remote." + tracking_remote + ".url"])
+  except subprocess.CalledProcessError:  # Not on a branch, fallback
+    return run_cmd_default(["git", "config", "--get", "remote.origin.url"])
+
+
+@cache
+def get_normalized_origin() -> str:
+  return get_origin() \
+    .replace("git@", "", 1) \
+    .replace(".git", "", 1) \
+    .replace("https://", "", 1) \
+    .replace(":", "/", 1)

common/run.py

@@ -0,0 +1,13 @@
+import subprocess
+
+
+def run_cmd(cmd: list[str]) -> str:
+  return subprocess.check_output(cmd, encoding='utf8').strip()
+
+
+def run_cmd_default(cmd: list[str], default: str = "") -> str:
+  try:
+    return run_cmd(cmd)
+  except subprocess.CalledProcessError:
+    return default
+

common/utils.py

@@ -1,3 +1,11 @@
+from collections.abc import Callable
+from functools import lru_cache
+from typing import TypeVar
+
+
+_RT = TypeVar("_RT")
+
+
 class Freezable:
   _frozen: bool = False
 
@@ -9,3 +17,7 @@ class Freezable:
     if self._frozen:
       raise Exception("cannot modify frozen object")
     super().__setattr__(*args, **kwargs)
+
+
+def cache(user_function: Callable[..., _RT], /) -> Callable[..., _RT]:
+  return lru_cache(maxsize=None)(user_function)