[edk2-staging/EdkRepo][PATCH] EdkRepo: Remove unused checkout sha functionality

["Ashley E Desimone" <ashley.e.desimone@intel.com>]

The SHA parameter for the checkout command has been
removed previously. This commit removes the calculations
which supported this functionality and amends the
checkout function to raise an EdkRepoInvalidParameters
exception if a valid combo name is not passed in.

Cc: Ashley E Desimone <ashley.e.desimone@intel.com>
Cc: Nate DeSimone <nathaniel.l.desimone@intel.com>
Cc: Puja Pandya <puja.pandya@intel.com>
Cc: Bret Barkelew <Bret.Barkelew@microsoft.com>
Cc: Prince Agyeman <prince.agyeman@intel.com>
Cc: Erik Bjorge <erik.c.bjorge@intel.com>
Signed-off-by: Ashley E Desimone <ashley.e.desimone@intel.com>
---
 edkrepo/common/common_repo_functions.py | 78 ++++---------------------
 1 file changed, 12 insertions(+), 66 deletions(-)

diff --git a/edkrepo/common/common_repo_functions.py b/edkrepo/common/common_repo_functions.py
index 0d54bbf..2277c1e 100644
--- a/edkrepo/common/common_repo_functions.py
+++ b/edkrepo/common/common_repo_functions.py
@@ -427,76 +427,22 @@ def combination_is_in_manifest(combination, manifest):
     return combination in combination_names
 
 
-def get_target_sources(combination_or_sha, manifest, workspace_path, log=None):
-    if combination_is_in_manifest(combination_or_sha, manifest):
-        return manifest.get_repo_sources(combination_or_sha)
-
-    current_combo = manifest.general_config.current_combo
-    # look for a pin file that is named combination_or_sha.xml
-    pin_filename = os.path.join(
-        workspace_path,
-        'repo',
-        combination_or_sha+'.xml')
-    if os.path.exists(pin_filename):
-        return ManifestXml(pin_filename).get_repo_sources(current_combo)
-
-    print ("Search repositories for '{}'".format(combination_or_sha))
-    commit_map = {
-        x.root : None
-        for x in manifest.get_repo_sources(current_combo)
-    }
-    found = False
-    if not log:
-        log = sort_commits(manifest, workspace_path)
-    for commit in log:
-        root = os.path.basename(commit.repo.working_dir)
-        if combination_or_sha == commit.hexsha:
-            found = True
-            commit_map[root] = commit.hexsha
-            continue
-        if not found:
-            continue
-        if not commit_map[root]:
-            commit_map[root] = commit.hexsha
-    if not found:
-        raise EdkrepoInvalidParametersException(CHECKOUT_INVALID_COMBO)
-
-    # Create a new pin file
-    old_sources = manifest.get_repo_sources(current_combo)
-    new_sources = []
-    for repo_source in old_sources:
-        new_sources.append(
-            repo_source._replace(commit=commit_map[repo_source.root]))
-    manifest.generate_pin_xml(
-        combination_or_sha,
-        current_combo,
-        new_sources,
-        filename=pin_filename)
-
-    return ManifestXml(pin_filename).get_repo_sources(current_combo)
-
-
-def checkout(combination_or_sha, verbose=False, override=False, log=None):
+def checkout(combination, verbose=False, override=False, log=None):
     workspace_path = get_workspace_path()
     manifest = get_workspace_manifest()
 
-    # Create combo_or_sha so we have original input and do not introduce any
+    # Create combo so we have original input and do not introduce any
     # unintended behavior by messing with parameters.
-    combo_or_sha = combination_or_sha
+    combo = combination
     submodule_combo = manifest.general_config.current_combo
     try:
         # Try to handle normalize combo name to match the manifest file.
-        combo_or_sha = case_insensitive_single_match(combo_or_sha, combinations_in_manifest(manifest))
-        submodule_combo = combo_or_sha
+        combo = case_insensitive_single_match(combo, combinations_in_manifest(manifest))
+        submodule_combo = combo
     except:
-        # No match so leave it alone.  It must be a SHA1 or a bad combo name.
-        pass
+        raise EdkrepoInvalidParametersException(CHECKOUT_INVALID_COMBO)
 
-    repo_sources = get_target_sources(
-        combo_or_sha,
-        manifest,
-        workspace_path,
-        log=log)
+    repo_sources = manifest.get_repo_sources(combo)
     initial_repo_sources = manifest.get_repo_sources(manifest.general_config.current_combo)
 
     # Disable sparse checkout
@@ -523,7 +469,7 @@ def checkout(combination_or_sha, verbose=False, override=False, log=None):
 
     # Deinit all submodules due to the potential for issues when switching
     # branches.
-    if combo_or_sha != manifest.general_config.current_combo:
+    if combo != manifest.general_config.current_combo:
         try:
             deinit_full(workspace_path, manifest, verbose)
         except Exception as e:
@@ -531,19 +477,19 @@ def checkout(combination_or_sha, verbose=False, override=False, log=None):
             if verbose:
                 print(e)
 
-    print(CHECKING_OUT_COMBO.format(combo_or_sha))
+    print(CHECKING_OUT_COMBO.format(combo))
 
     try:
         checkout_repos(verbose, override, repo_sources, workspace_path, manifest)
         current_repos = repo_sources
         # Update the current checkout combo in the manifest only if this
         # combination exists in the manifest
-        if combination_is_in_manifest(combo_or_sha, manifest):
-            manifest.write_current_combo(combo_or_sha)
+        if combination_is_in_manifest(combo, manifest):
+            manifest.write_current_combo(combo)
     except:
         if verbose:
             traceback.print_exc()
-        print (CHECKOUT_COMBO_UNSUCCESSFULL.format(combo_or_sha))
+        print (CHECKOUT_COMBO_UNSUCCESSFULL.format(combo))
         # Return to the initial combo, since there was an issue with cheking out the selected combo
         checkout_repos(verbose, override, initial_repo_sources, workspace_path, manifest)
     finally:
-- 
2.26.2.windows.1