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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 --> details. <!-- CL 126275, CL 127156, CL 122217, CL 122575, CL 123177 -->
</p> </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> <h3 id="godoc">Godoc</h3>
<p> <p>

6
src/cmd/go/alldocs.go
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@ -1449,6 +1449,12 @@
// The directory where the go command will write // The directory where the go command will write
// temporary source files, packages, and binaries. // 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: // Environment variables for use with cgo:
// //
// CC // 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 The directory where the go command will write
temporary source files, packages, and binaries. 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: Environment variables for use with cgo:
CC CC