Pin spack and ramble (#164)

* add versioning file

* check out pinned spack/ramble versions

* style fix

bin/benchpark

@@ -6,12 +6,14 @@
 # SPDX-License-Identifier: Apache-2.0
 
 import argparse
+from contextlib import contextmanager
 import os
 import pathlib
 import shlex
 import shutil
 import subprocess
 import sys
+import yaml
 
 DEBUG = False
 
@@ -202,6 +204,23 @@ def symlink_tree(src, dst):
             os.symlink(src_file, dst_symlink)
 
 
+@contextmanager
+def working_dir(location):
+    initial_dir = os.getcwd()
+    try:
+        os.chdir(location)
+        yield
+    finally:
+        os.chdir(initial_dir)
+
+
+def git_clone_commit(url, commit, destination):
+    run_command(f"git clone -c feature.manyFiles=true {url} {destination}")
+
+    with working_dir(destination):
+        run_command(f"git checkout {commit}")
+
+
 def benchpark_setup_handler(args):
     """
     experiments_root/
@@ -269,12 +288,16 @@ def benchpark_setup_handler(args):
 
     initializer_script = experiments_root / "setup.sh"
 
+    checkout_versions_location = source_dir / "checkout-versions.yaml"
+    with open(checkout_versions_location, "r") as yaml_file:
+        data = yaml.safe_load(yaml_file)
+        ramble_commit = data["versions"]["ramble"]
+        spack_commit = data["versions"]["spack"]
+
     if not spack_location.exists():
         print(f"Cloning spack into {spack_location}")
-        run_command(
-            "git clone --depth=1 -c feature.manyFiles=true "
-            "https://github.com/spack/spack.git "
-            f"{spack_location}"
+        git_clone_commit(
+            "https://github.com/spack/spack.git", spack_commit, spack_location
         )
 
         env = {"SPACK_DISABLE_LOCAL_CONFIG": "1"}
@@ -286,10 +309,10 @@ def benchpark_setup_handler(args):
 
     if not ramble_location.exists():
         print(f"Cloning ramble into {ramble_location}")
-        run_command(
-            "git clone --depth=1 -c feature.manyFiles=true "
-            "https://github.com/GoogleCloudPlatform/ramble.git "
-            f"{ramble_location}"
+        git_clone_commit(
+            "https://github.com/GoogleCloudPlatform/ramble.git",
+            ramble_commit,
+            ramble_location,
         )
 
         run_command(f"{ramble_exe} repo add --scope=site {source_dir}/repo")

checkout-versions.yaml

@@ -0,0 +1,8 @@
+# Copyright 2023 Lawrence Livermore National Security, LLC and other
+# Benchpark Project Developers. See the top-level COPYRIGHT file for details.
+#
+# SPDX-License-Identifier: Apache-2.0
+
+versions:
+  ramble: 3d6d2670435c704ca815ae13abe49b10c5111638
+  spack: 31de670bd26beca979ebd75dcb0ce90c535a78c4