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doc/go1.15: add notes for GOMODCACHE, modcacheunzipinplace

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For #36568
For #34527

Change-Id: Ieea4b4a7644e9c957f48d08d2e172e39b571502f
Reviewed-on: https://go-review.googlesource.com/c/go/+/230537
Reviewed-by: Michael Matloob <matloob@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
This commit is contained in:
Jay Conrod 2020-04-28 11:58:33 -04:00
parent 863424beb2
commit 495a287f0b
1 changed files with 20 additions and 0 deletions
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doc/go1.15.html
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@ -78,6 +78,26 @@ TODO
directory of each individual test).
</p>
<h4 id="module-cache">Module cache</h4>
<p><!-- https://golang.org/cl/219538 -->
The location of the module cache may now be set with
the <code>GOMODCACHE</code> environment variable. The default value of
<code>GOMODCACHE</code> is <code>GOPATH[0]/pkg/mod</code>, the location of the
module cache before this change.
</p>
<p><!-- https://golang.org/cl/221157 -->
A workaround is now available for Windows "Access is denied" errors in
<code>go</code> commands that access the module cache, caused by external
programs concurrently scanning the file system (see
<a href="https://golang.org/issue/36568">issue #36568</a>). The workaround is
not enabled by default because it is not safe to use when Go versions lower
than 1.14.2 and 1.13.10 are running concurrently with the same module cache.
It can be enabled by explictly setting the environment variable
<code>GODEBUG=modcacheunzipinplace=1</code>.
</p>
<h2 id="runtime">Runtime</h2>
<p>