1 files changed, 33 insertions, 1 deletions
diff --git a/scripts/common_codegen.py b/scripts/common_codegen.py
index 1e4d9700..d44cd643 100644
--- a/scripts/common_codegen.py
+++ b/scripts/common_codegen.py
@@ -19,6 +19,8 @@
 # Author: Mark Lobodzinski <mark@lunarg.com>
 
 import os
+import sys
+import subprocess
 
 # Copyright text prefixing all headers (list of strings).
 prefixStrings = [
@@ -76,7 +78,37 @@ def GetFeatureProtect(interface):
     if provisional == 'true':
         return platform_dict['provisional']
 
+# Returns true if we are running in GitHub actions
+# https://docs.github.com/en/actions/learn-github-actions/variables#default-environment-variables
+def IsGHA():
+    if 'GITHUB_ACTION' in os.environ:
+        return True
+    return False
+
+# Points to the directory containing the top level CMakeLists.txt
+PROJECT_SRC_DIR = os.path.abspath(os.path.join(os.path.split(os.path.abspath(__file__))[0], '..'))
+if not os.path.isfile(f'{PROJECT_SRC_DIR}/CMakeLists.txt'):
+    print(f'PROJECT_SRC_DIR invalid! {PROJECT_SRC_DIR}')
+    sys.exit(1)
 
 # helper to define paths relative to the repo root
-def repo_relative(path):
+def RepoRelative(path):
     return os.path.abspath(os.path.join(os.path.dirname(__file__), '..', path))
+
+# Runs a command in a directory and returns its return code.
+# Directory is project root by default, or a relative path from project root
+def RunShellCmd(command, start_dir = PROJECT_SRC_DIR, env=None, verbose=False):
+    # Flush stdout here. Helps when debugging on CI.
+    sys.stdout.flush()
+
+    if start_dir != PROJECT_SRC_DIR:
+        start_dir = RepoRelative(start_dir)
+    cmd_list = command.split(" ")
+
+    # Helps a lot when debugging CI issues
+    if IsGHA():
+        verbose = True
+
+    if verbose:
+        print(f'CICMD({cmd_list}, env={env})')
+    subprocess.check_call(cmd_list, cwd=start_dir, env=env)
+\ No newline at end of file