tree 30971950c1fd93894fa71536676faddc4f50c77b
parent 56d8e7cab446c164a8c765e6bf94c69e0aec7ebf
author Russ Cox <rsc@golang.org> 1530673612 -0400
committer Russ Cox <rsc@golang.org> 1531201308 +0000

cmd/go/internal/modfetch: clean up Query

Clean up module query notation to make it easier to explain.

Apply a suggestion from Bryan in the previous CL to apply
the preference for releases (not pre-releases) to all queries,
not just "latest".

Change "v1" to mean "the latest v1.x.x" not "v1.0.0".
Change "v1.2" to mean "the latest v1.2.x" not "v1.2.0".
There was a TODO about checking for a tag/branch named v1,
but using the latest tagged v1.x.x release seems better than
taking the last commit (possibly untagged) from a branch
anyway.

Add <= and >= operators instead of misintepreting them
as < and > with malformed semantic versions.

Given that "v1" and "v1.2" now essentially address a wide range
of values, disallow ambiguous <=v1, <=v1.2, >v1, and >v1.2.

Add test.

Change-Id: I97a39c5a468ee710a19b587c46d1821f03d76acd
Reviewed-on: https://go-review.googlesource.com/122257
Reviewed-by: Bryan C. Mills <bcmills@google.com>