diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/cmd/go/pkg.go | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/cmd/go/pkg.go b/src/cmd/go/pkg.go index 73527a3aba..7b21fd4414 100644 --- a/src/cmd/go/pkg.go +++ b/src/cmd/go/pkg.go @@ -724,6 +724,27 @@ func (p *Package) load(stk *importStack, bp *build.Package, err error) *Package for _, file := range inputFiles { fmt.Fprintf(h, "%s\n", file) } + + // Include the content of runtime/zversion.go in the hash + // for package runtime. This will give package runtime a + // different build ID in each Go release. + if p.Standard && p.ImportPath == "runtime" { + data, _ := ioutil.ReadFile(filepath.Join(p.Dir, "zversion.go")) + fmt.Fprintf(h, "zversion %q\n", string(data)) + } + + // Include the build IDs of any dependencies in the hash. + // This, combined with the runtime/zversion content, + // will cause packages to have different build IDs when + // compiled with different Go releases. + // This helps the go command know to recompile when + // people use the same GOPATH but switch between + // different Go releases. See golang.org/issue/10702. + for _, dep := range p.Deps { + p1 := deps[dep] + fmt.Fprintf(h, "dep %s %s\n", p1.ImportPath, p1.buildID) + } + p.buildID = fmt.Sprintf("%x", h.Sum(nil)) return p |