| commit | 7cd10c1149e51a9d2f0868babaf66b8091b9c0b9 | [log] [tgz] |
|---|---|---|
| author | Jay Conrod <jayconrod@google.com> | Tue Jul 27 10:22:35 2021 -0700 |
| committer | Jay Conrod <jayconrod@google.com> | Tue Jul 27 22:01:54 2021 +0000 |
| tree | f190df0ead3f829b86d70b586c89516b9683f9b6 | |
| parent | c8cf0f74e4a8f078ab5570e76c37621a0daf0309 [diff] |
cmd/go: use .mod instead of .zip to determine if version has go.mod file When checking for updates, the go command checks whether the highest compatible version has a go.mod file in order to determine whether +incompatible versions may be considered "latest". Previously, to perform this check, the go command would download the content of the module (the .zip file) to see whether a go.mod file was present at the root. This is slower than necessary, and it caused 'go list -m -u' to try to save the sum for the .zip file in go.sum in some cases. With this change, the go command only downloads the .mod file and checks whether it appears to be a fake file generated for a version that didn't have a go.mod file. This is faster and requires less verification. Fake files only have a "module" directive. It's possible to commit a file that passes this test, but it would be difficult to do accidentally: Go 1.12 and later at least add a "go" directive. A false positive here would cause version queries to have slightly different results but would not affect builds. Fixes #47377 Change-Id: Ie5ffd0b45e39bd0921328a60af99a9f6e5ab6346 Reviewed-on: https://go-review.googlesource.com/c/go/+/337850 Trust: Jay Conrod <jayconrod@google.com> Run-TryBot: Jay Conrod <jayconrod@google.com> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Michael Matloob <matloob@golang.org>
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