Merge branch 'jgfouca/fix_prov_git_config' into master (PR E3SM-Proje…

…ct#6227)

Provenance: do not crash if config_src does not exist

Just skip that file. This should help with containerized E3SM.

Fixes E3SM-Project#6225

[BFB]

cime_config/customize/provenance.py

@@ -78,8 +78,9 @@ def _record_git_provenance(srcroot, exeroot, lid):
 
     # Git config
     config_src = os.path.join(gitroot, "config")
-    config_prov = os.path.join(exeroot, "GIT_CONFIG.{}".format(lid))
-    utils.safe_copy(config_src, config_prov, preserve_meta=False)
+    if os.path.exists(config_src):
+        config_prov = os.path.join(exeroot, "GIT_CONFIG.{}".format(lid))
+        utils.safe_copy(config_src, config_prov, preserve_meta=False)
 
 
 def _find_git_root(srcroot):