[Buildbot] fix usage of buildbot outside of repo (#1727)

Author: tdavidcl

buildbot/lib/buildbot.py

@@ -59,24 +59,36 @@ def print_buildbot_info(utility_name):
 
     print()
 
-    str_git = os.popen("git log -n 1 --decorate=full").read()
+    try:
+        r_log = subprocess.run(
+            ["git", "log", "-n", "1", "--decorate=full"],
+            capture_output=True,
+            text=True,
+        )
+        if r_log.returncode != 0:
+            raise RuntimeError("git log failed")
 
-    git_hash = str_git.split()[1]
-    git_head = str_git[str_git.find("HEAD -> ") + 8 : str_git.find(")")]
+        str_git = r_log.stdout
+        git_hash = str_git.split()[1]
+        git_head = str_git[str_git.find("HEAD -> ") + 8 : str_git.find(")")]
 
-    git_head = git_head.split(",")
+        git_head = git_head.split(",")
 
-    if len(git_head) == 1:
-        git_head = "\033[1;92m" + git_head[0] + "\033[0;0m"
-    else:
-        git_head = "\033[1;92m" + git_head[0] + "\033[0;0m , \033[1;91m" + git_head[0] + "\033[0;0m"
+        if len(git_head) == 1:
+            git_head = "\033[1;92m" + git_head[0] + "\033[0;0m"
+        else:
+            git_head = (
+                "\033[1;92m" + git_head[0] + "\033[0;0m , \033[1;91m" + git_head[0] + "\033[0;0m"
+            )
 
-    print("\033[1;34mGit status \033[0;0m: ")
-    print("     \033[1;93mcommit \033[0;0m: ", git_hash)
-    print("     \033[1;36mHEAD   \033[0;0m: ", git_head)
-    print("     \033[1;31mmodified files\033[0;0m (since last commit):")
-    print(os.popen('git diff-index --name-only HEAD -- | sed "s/^/        /g"').read())
-    print("\033[1;90m" + "-" * col_cnt + "\033[0;0m\n")
+        print("\033[1;34mGit status \033[0;0m: ")
+        print("     \033[1;93mcommit \033[0;0m: ", git_hash)
+        print("     \033[1;36mHEAD   \033[0;0m: ", git_head)
+        print("     \033[1;31mmodified files\033[0;0m (since last commit):")
+        print(os.popen('git diff-index --name-only HEAD -- | sed "s/^/        /g"').read())
+        print("\033[1;90m" + "-" * col_cnt + "\033[0;0m\n")
+    except Exception:  # noqa: BLE001
+        print("Warn : couldn't get git status")
 
 
 def run_cmd(str):