Twelfth try fixing CI/CD; install fewer packs per job

Author: MichaelRFairhurst

.github/scripts/install-packs.py

@@ -15,21 +15,29 @@ def get_workspace_packs(root):
 
     return packs
 
+def install_pack(pack_path, codeql_executable, mode):
+    # Run `codeql pack install` to install dependencies.
+    command = [codeql_executable, 'pack', 'install', '--allow-prerelease', '--mode', mode, pack_path]
+    print(f'Running `{" ".join(command)}`')
+    subprocess.check_call(command)
+
 parser = argparse.ArgumentParser(description="Install CodeQL library pack dependencies.")
 parser.add_argument('--mode', required=False, choices=['use-lock', 'update', 'verify', 'no-lock'], default="use-lock", help="Installation mode, identical to the `--mode` argument to `codeql pack install`")
 parser.add_argument('--codeql', required=False, default='codeql', help="Path to the `codeql` executable.")
+parser.add_argument('--language', required=False, help="Which language (or 'common') to install pack dependencies for.")
 args = parser.parse_args()
 
 # Find the root of the repo
 root = os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
 
 packs = get_workspace_packs(root)
 
-# Find the CodeQL packs in the repo. This can also return packs outside of the repo, if those packs
-# are installed in a sibling directory to the CLI.
-for pack in packs:
-    pack_path = os.path.join(root, pack)
-    # Run `codeql pack install` to install dependencies.
-    command = [args.codeql, 'pack', 'install', '--allow-prerelease', '--mode', args.mode, pack_path]
-    print(f'Running `{" ".join(command)}`')
-    subprocess.check_call(command)
+# Always install the qtil source pack, which is used by all languages.
+install_pack(os.path.join(root, 'src'), args.codeql, args.mode)
+if args.language == 'common':
+  # common means we want to run test/.
+  install_pack(os.path.join(root, 'test'), args.codeql, args.mode)
+else:
+  # Otherwise, we need to install the language-specific src and test packs.
+  install_pack(os.path.join(root, args.language, 'src'), args.codeql, args.mode)
+  install_pack(os.path.join(root, args.language, 'test'), args.codeql, args.mode)

.github/workflows/codeql-unit-tests.yaml

@@ -7,6 +7,7 @@ on:
 
 jobs:
   compile-and-test:
+    name: Compile and Test CodeQL Packs
     runs-on: ubuntu-latest
 
     strategy:
@@ -25,6 +26,7 @@ jobs:
         uses: ./.github/actions/install-codeql-packs
         with:
           cli_path: ${{ github.workspace }}/codeql_home/codeql
+          language: ${{ matrix.language }}
 
       - name: Pre-Compile Queries
         id: pre-compile-queries