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doc/go1.11, cmd/go: elaborate on new GOFLAGS environment variable

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In Go 1.11, cmd/go gained support for the GOFLAGS environment variable.
It was added and described in detail in CL 126656.
Mention it in the Go 1.11 release notes, link to the cmd/go documentation,
and add more details there.

Fixes #27282.

Change-Id: Ifc35bfe3e0886a145478d36dde8e80aedd8ec68e
Reviewed-on: https://go-review.googlesource.com/135035
Reviewed-by: Bryan C. Mills <bcmills@google.com>
Reviewed-by: Rob Pike <r@golang.org>
This commit is contained in:
Dmitri Shuralyov 2018-09-12 13:58:18 -04:00
parent 7df585d13d
commit 58c6afe075
3 changed files with 26 additions and 0 deletions
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14
doc/go1.11.html
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@ -348,6 +348,20 @@ updating. See the <a href="go1.10.html#cgo">Go 1.10 release notes</a> for
details. <!-- CL 126275, CL 127156, CL 122217, CL 122575, CL 123177 -->
</p>
<h3 id="go_command">Go command</h3>
<p><!-- CL 126656 -->
The environment variable <code>GOFLAGS</code> may now be used
to set default flags for the <code>go</code> command.
This is useful in certain situations.
Linking can be noticeably slower on underpowered systems due to DWARF,
and users may want to set <code>-ldflags=-w</code> by default.
For modules, some users and CI systems will want vendoring always,
so they should set <code>-mod=vendor</code> by default.
For more information, see the <a href="/cmd/go/#hdr-Environment_variables"><code>go</code>
command documentation</a>.
</p>
<h3 id="godoc">Godoc</h3>
<p>

6
src/cmd/go/alldocs.go
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@ -1449,6 +1449,12 @@
// The directory where the go command will write
// temporary source files, packages, and binaries.
//
// Each entry in the GOFLAGS list must be a standalone flag.
// Because the entries are space-separated, flag values must
// not contain spaces. In some cases, you can provide multiple flag
// values instead: for example, to set '-ldflags=-s -w'
// you can use 'GOFLAGS=-ldflags=-s -ldflags=-w'.
//
// Environment variables for use with cgo:
//
// CC

6
src/cmd/go/internal/help/helpdoc.go
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@ -507,6 +507,12 @@ General-purpose environment variables:
The directory where the go command will write
temporary source files, packages, and binaries.
Each entry in the GOFLAGS list must be a standalone flag.
Because the entries are space-separated, flag values must
not contain spaces. In some cases, you can provide multiple flag
values instead: for example, to set '-ldflags=-s -w'
you can use 'GOFLAGS=-ldflags=-s -ldflags=-w'.
Environment variables for use with cgo:
CC