github/windows: improve caching in -race builder
@@ -27,10 +27,21 @@ jobs:
- name: Restore Cache
uses: actions/cache@v2
with:
- path: ~/go/pkg/mod
- key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
- restore-keys: |
- ${{ runner.os }}-go-
+ # Note: unlike some other setups, this is only grabbing the mod download
+ # cache, rather than the whole mod directory, as the download cache
+ # contains zips that can be unpacked in parallel faster than they can be
+ # fetched and extracted by tar
+ path: |
+ ~/go/pkg/mod/cache
+ ~\AppData\Local\go-build
+
+ # The -2- here should be incremented when the scheme of data to be
+ # cached changes (e.g. path above changes).
+ # The -race- here ensures that non-race builds and race builds do not
+ # overwrite each others cache, as while they share some files, they
+ # differ in most by volume (build cache).
+ # TODO(raggi): add a go version here.
+ key: ${{ runner.os }}-go-2-race-${{ hashFiles('**/go.sum') }}
- name: Test with -race flag
# Don't use -bench=. -benchtime=1x.
