updating build-artifacts to generate python2 nspkgs if any exist

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

@@ -9,6 +9,21 @@ steps:
     displayName: 'Tag scheduled builds'
     condition: and(eq(variables['Build.SourceBranchName'],'master'),eq(variables['Build.Reason'],'Schedule'))
 
+  - task: UsePythonVersion@0
+    displayName: 'Use Python 2.7'
+    inputs:
+      versionSpec: '2.7'
+
+  - script: |
+      pip install wheel setuptools packaging
+    displayName: 'Prep Environment'
+
+  - task: PythonScript@0
+    displayName: 'Generate Python2 Applicable Namespace Packages'
+    inputs:
+      scriptPath: 'scripts/devops_tasks/build_packages.py'
+      arguments: '-d "$(Build.ArtifactStagingDirectory)" "${{ parameters.BuildTargetingString }}" --service=${{parameters.ServiceDirectory}} --additionalfilterstring=nspkg'
+
   - task: UsePythonVersion@0
     displayName: 'Use Python $(PythonVersion)'
     inputs:

scripts/devops_tasks/build_packages.py

@@ -65,6 +65,14 @@ def build_packages(targeted_packages, distribution_directory):
         ),
     )
 
+    parser.add_argument(
+        "--additionalfilterstring",
+        help=(
+            "Additional filter on top of the glob_string already presented. Used in simple 'contains' match"
+            "Example: --additionalfilterstring=nspkg"
+        ),
+    )
+
     args = parser.parse_args()
 
     # We need to support both CI builds of everything and individual service
@@ -75,5 +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.additionalfilterstring)
     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_filter_string=""):
     if glob_string:
         individual_globs = glob_string.split(",")
     else:
@@ -145,8 +145,8 @@ 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 = [p for p in list(set(collected_top_level_directories)) if additional_filter_string 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
     if len(collected_directories) == 1: