Update pre-commit check script to work for auto-updates

scripts/validatePreCommitConfig.py

@@ -1,22 +1,20 @@
 # This script should be run from the root of a submodule repository.
 # It will check that the pre-commit config file matches the one in the framework repository (master branch).
-# TODO: if a branch with the same name as the current branch exists in the framework repository, use that instead of master.
 # It will also check other files related to the pre-commit such as .clang-format and .cmake-format.yaml.
 
 import os
 
 
-def check_files(base_directory, file_name) -> bool:
+def check_files(base_directory, file_name, branch) -> bool:
     # Check that the pre-commit config file is the same as the one in the framework repository.
     # If not, print a warning and exit with a non-zero exit code.
     # base_directory: the directory where the file is located.
     # file_names: a list of file names to check.
     # Returns: True if the files are the same, False otherwise.
     # Note: this function will exit the script if the files are not the same.
 
-    branch_name = "master"
     github_prefix = (
-        f"https://raw.githubusercontent.com/rest-for-physics/framework/{branch_name}/"
+        f"https://raw.githubusercontent.com/rest-for-physics/framework/{branch}/"
     )
 
     with open(os.path.join(base_directory, file_name), "r") as f:
@@ -36,9 +34,35 @@ def check_files(base_directory, file_name) -> bool:
     # check pre-commit config file
     files = [".pre-commit-config.yaml", ".clang-format", ".cmake-format.yaml"]
 
+    # if the cwd is a git repository, get the branch name
+    branch_name = "master"
+    if os.path.exists(".git"):
+        this_branch_name = os.popen("git rev-parse --abbrev-ref HEAD").read().strip()
+        # Check this branch name also exists in framework
+        if (
+            len(
+                os.popen(
+                    f"git ls-remote --heads https://github.com/rest-for-physics/framework.git {this_branch_name}"
+                )
+                .read()
+                .strip()
+            )
+            != 0
+        ):
+            branch_name = this_branch_name
+        else:
+            print(
+                f"WARNING: The branch '{this_branch_name}' does not exist in the framework repository."
+            )
+
+    print(f"Comparing files with branch={branch_name} in the framework repository.")
+
     status = True  # OK
     for file in files:
-        status = check_files(base_directory=".", file_name=file) and status
+        status = (
+            check_files(base_directory=".", file_name=file, branch=branch_name)
+            and status
+        )
 
     if not status:
         exit(1)  # ERROR