Support arm64 in release binary sizes workflow

Fixes /issues/129

.github/workflows/release-swift-toolchain-binary-sizes.yml

@@ -10,7 +10,6 @@
 #
 name: Release - Swift Toolchain Binary Sizes
 
-# TODO(thebrowsercompany/swift-build/issues/129): Support arm64 releases.
 # TODO(kendal): Use on.releases.[created, edited] when the table schema is stable.
 
 on:
@@ -47,7 +46,7 @@ jobs:
 
     strategy:
       matrix:
-        toolchain_arch: [amd64]
+        toolchain_arch: [amd64, arm64]
 
     steps:
       - name: Checkout swift-build
@@ -110,6 +109,7 @@ jobs:
           $Script="./scripts/python/binary_sizes/bigquery_generate_table_data.py"
           python ${Script} ${{ github.workspace }}/binary_sizes.csv ${{ github.workspace }}/table_data.csv `
             --toolchain-version=${{ env.SWIFT_TOOLCHAIN_VERSION }} `
+            --toolchain-arch=${{ matrix.toolchain_arch }} `
             --strip-inputfiles-prefix=${{ env.SWIFT_INSTALL_ROOT }} `
             --environment="${{ env.ENVIRONMENT_LABEL }}" `
             --creation-time="$CreationTime"

scripts/python/binary_sizes/bigquery_generate_table_data.py

@@ -44,6 +44,7 @@ def main():
 
     req_group = parser.add_argument_group('required flags', 'Additional properties that help slice and group data in BigQuery')
     req_group.add_argument('--toolchain-version', type=str, help='The toolchain version that corresponds to the input data')
+    req_group.add_argument('--toolchain-arch', type=str, help='The toolchain target architecture')
 
     opt_group = parser.add_argument_group('optional flags')
     opt_group.add_argument('--creation-time', type=str, help='timestamp when the release was created formatted as YYYY-MM-DD')
@@ -63,7 +64,7 @@ def main():
     add_column(csv_data, 'toolchain_version', args.toolchain_version)
     add_column(csv_data, 'environment', args.environment)
     add_column(csv_data, 'target_os', 'windows')
-    add_column(csv_data, 'target_arch', 'amd64')
+    add_column(csv_data, 'target_arch', args.toolchain_arch)
     add_column(csv_data, 'creation_time', creation_time)
     rename_column(csv_data, 'inputfiles', 'filename')
     rename_column(csv_data, 'segments', 'segment')