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Jay Conrod 4c2ffd26ec cmd/go: avoid accidental downgrades in 'go get' with latest and patch 
Currently, 'go get -u' and 'go get -u=patch' avoid accidentally
downgrading modules by preventing upgrades in two cases:

1) If the current version is a prerelease that is semantically later
   than the "latest" or "patch" version.
2) If the current version is a pseudoversion that is chronologically
   newer than the "latest" or "patch" version.

With this change, 'go get m@latest' and 'go get m@patch' prevent
downgrades using the same checks.

Also: 'go get m@patch' now works if m is a module path but not a
package path (i.e., there is no package in the module root directory).

Fixes #30634
Fixes #32537

Change-Id: I916630c385b5f3ba7c13e0d65ba08f73a1a67829
Reviewed-on: https://go-review.googlesource.com/c/go/+/180337
Run-TryBot: Jay Conrod <jayconrod@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
 		2019-06-14 18:01:34 +00:00
.github .github: don't render author-facing text in ISSUE_TEMPLATE 2018-11-02 04:47:34 +00:00
api api: update next.txt 2019-05-08 16:55:59 +00:00
doc doc: add release notes for context 2019-06-14 16:46:12 +00:00
lib/time time: read 64-bit data if available 2019-02-26 23:10:35 +00:00
misc misc/cgo/test: add test for issue 31093 2019-06-05 00:53:25 +00:00
src cmd/go: avoid accidental downgrades in 'go get' with latest and patch 2019-06-14 18:01:34 +00:00
test cmd/compile: fix range analysis of small signed integers 2019-06-12 18:03:46 +00:00
.gitattributes .gitattributes: prevent all magic line ending changes 2014-12-12 23:14:54 +00:00
.gitignore .gitignore: ignore src/cmd/dist/dist 2017-10-28 21:55:49 +00:00
AUTHORS A: Add Maya Rashish (individual CLA) 2019-04-23 14:40:30 +00:00
CONTRIBUTING.md all: restore changes from faulty merge/revert 2018-02-12 20:13:59 +00:00
CONTRIBUTORS CONTRIBUTORS: second round of updates for Go 1.12 2019-01-30 18:01:19 +00:00
LICENSE doc: revert copyright date to 2009 2016-06-01 22:40:04 +00:00
PATENTS LICENSE: separate, change PATENTS text 2010-12-06 16:31:59 -05:00
README.md README: linkify some paths 2018-06-06 18:07:01 +00:00
SECURITY.md SECURITY.md: add security file 2019-05-23 21:22:44 +00:00
favicon.ico website: recreate 16px and 32px favicon 2016-08-25 15:43:32 +00:00
robots.txt godoc: serve robots.txt raw 2011-02-19 05:46:20 +11:00

README.md

The Go Programming Language

Go is an open source programming language that makes it easy to build simple, reliable, and efficient software.

Gopher image Gopher image by Renee French, licensed under Creative Commons 3.0 Attributions license.

Our canonical Git repository is located at https://go.googlesource.com/go. There is a mirror of the repository at https://github.com/golang/go.

Unless otherwise noted, the Go source files are distributed under the BSD-style license found in the LICENSE file.

Download and Install

Binary Distributions

Official binary distributions are available at https://golang.org/dl/.

After downloading a binary release, visit https://golang.org/doc/install or load doc/install.html in your web browser for installation instructions.

Install From Source

If a binary distribution is not available for your combination of operating system and architecture, visit https://golang.org/doc/install/source or load doc/install-source.html in your web browser for source installation instructions.

Contributing

Go is the work of thousands of contributors. We appreciate your help!

To contribute, please read the contribution guidelines: https://golang.org/doc/contribute.html

Note that the Go project uses the issue tracker for bug reports and proposals only. See https://golang.org/wiki/Questions for a list of places to ask questions about the Go language.