5a9fc946b4
Previous versions of the 'go' command would reject a pseudo-version passed to 'go get' if that pseudo-version had a mismatched major version and lacked a "+incompatible" suffix. However, they would erroneously accept a version *with* a "+incompatible" suffix even if the repo contained a vN/go.mod file for the same major version, and would generate a "+incompatible" pseudo-version or version if the user requested a tag, branch, or commit hash. This change uniformly rejects "vN.…" without "+incompatible", and also avoids resolving to "vN.…+incompatible", when vN/go.mod exists. To maintain compatibility with existing go.mod files, it still accepts "vN.…+incompatible" if the version is requested explicitly as such and the repo root lacks a go.mod file. Fixes #51324 Updates #36438 Change-Id: I2b16150c73fc2abe4d0a1cd34cb1600635db7139 Reviewed-on: https://go-review.googlesource.com/c/go/+/387675 Trust: Bryan Mills <bcmills@google.com> Reviewed-by: Michael Matloob <matloob@golang.org>
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