Resolve faulty package filter when building for release (Azure#7297)

* originally removed this method due to a 'brilliant simplification' only to realize that kinda missed an essential filter during a build for a release

eng/pipelines/templates/steps/build-artifacts.yml

@@ -22,7 +22,7 @@ steps:
     displayName: 'Generate Python2 Applicable Namespace Packages'
     inputs:
       scriptPath: 'scripts/devops_tasks/build_packages.py'
-      arguments: '-d "$(Build.ArtifactStagingDirectory)" "*-nspkg" --service=${{parameters.ServiceDirectory}}'
+      arguments: '-d "$(Build.ArtifactStagingDirectory)" "${{ parameters.BuildTargetingString }}" --pkgfilter="nspkg" --service=${{parameters.ServiceDirectory}}'
 
   - task: UsePythonVersion@0
     displayName: 'Use Python $(PythonVersion)'

scripts/devops_tasks/build_packages.py

@@ -64,6 +64,15 @@ def build_packages(targeted_packages, distribution_directory):
         ),
     )
 
+    parser.add_argument(
+        "--pkgfilter",
+        default="",
+        dest="package_filter_string",
+        help=(
+            "An additional string used to filter the set of artifacts by a simple CONTAINS clause. This filters packages AFTER the set is built with compatibility and omission lists accounted."
+        ),
+    )
+
     args = parser.parse_args()
 
     # We need to support both CI builds of everything and individual service
@@ -74,5 +83,5 @@ def build_packages(targeted_packages, distribution_directory):
     else:
         target_dir = root_dir
 
-    targeted_packages = process_glob_string(args.glob_string, target_dir)
+    targeted_packages = process_glob_string(args.glob_string, target_dir, args.package_filter_string)
     build_packages(targeted_packages, args.distribution_directory)

scripts/devops_tasks/common_tasks.py

@@ -131,7 +131,7 @@ def filter_for_compatibility(package_set):
 # this function is where a glob string gets translated to a list of packages
 # It is called by both BUILD (package) and TEST. In the future, this function will be the central location
 # for handling targeting of release packages
-def process_glob_string(glob_string, target_root_dir):
+def process_glob_string(glob_string, target_root_dir, additional_contains_filter=""):
     if glob_string:
         individual_globs = glob_string.split(",")
     else:
@@ -145,7 +145,7 @@ def process_glob_string(glob_string, target_root_dir):
         collected_top_level_directories.extend([os.path.dirname(p) for p in globbed])
 
     # dedup, in case we have double coverage from the glob strings. Example: "azure-mgmt-keyvault,azure-mgmt-*"
-    collected_directories = list(set(collected_top_level_directories))
+    collected_directories = list(set([p for p in collected_top_level_directories if additional_contains_filter in p]))
 
     # if we have individually queued this specific package, it's obvious that we want to build it specifically
     # in this case, do not honor the omission list