From 28fa1da9db8eedf079f1b83fd39383e17b3d7e68 Mon Sep 17 00:00:00 2001 From: Meng Zhuo Date: Thu, 4 Oct 2018 16:46:22 +0800 Subject: cmd/api: explicit tagKey with GOOS and GOARCH The origin tagKey is just dirname if no tags input which will cause pkgCache missmatch if other imported pkg explicit on GOARCH or GOOS This CL will add GOOS and GOARCH to tagKey Fixes #8425 Fixes #21181 Change-Id: Ifc189cf6746d753ad7c7e5bb60621297fc0a4e35 Reviewed-on: https://go-review.googlesource.com/c/138315 Reviewed-by: Robert Griesemer --- src/cmd/api/goapi.go | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) (limited to 'src/cmd/api/goapi.go') diff --git a/src/cmd/api/goapi.go b/src/cmd/api/goapi.go index 8cc78c01ed..9698f25b51 100644 --- a/src/cmd/api/goapi.go +++ b/src/cmd/api/goapi.go @@ -385,9 +385,7 @@ func (w *Walker) parseFile(dir, file string) (*ast.File, error) { return f, nil } -// The package cache doesn't operate correctly in rare (so far artificial) -// circumstances (issue 8425). Disable before debugging non-obvious errors -// from the type-checker. +// Disable before debugging non-obvious errors from the type-checker. const usePkgCache = true var ( @@ -398,7 +396,7 @@ var ( // tagKey returns the tag-based key to use in the pkgCache. // It is a comma-separated string; the first part is dir, the rest tags. // The satisfied tags are derived from context but only those that -// matter (the ones listed in the tags argument) are used. +// matter (the ones listed in the tags argument plus GOOS and GOARCH) are used. // The tags list, which came from go/build's Package.AllTags, // is known to be sorted. func tagKey(dir string, context *build.Context, tags []string) string { @@ -414,9 +412,17 @@ func tagKey(dir string, context *build.Context, tags []string) string { } // TODO: ReleaseTags (need to load default) key := dir + + // explicit on GOOS and GOARCH as global cache will use "all" cached packages for + // an indirect imported package. See https://github.com/golang/go/issues/21181 + // for more detail. + tags = append(tags, context.GOOS, context.GOARCH) + sort.Strings(tags) + for _, tag := range tags { if ctags[tag] { key += "," + tag + ctags[tag] = false } } return key -- cgit v1.3