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go/src/all.bat
Dmitri Shuralyov 9cad0cc6e6 make.{bash,bat}: check unmodified $PATH for $GOROOT/bin presence
Previously, all.bash and all.bat restored the original $PATH before
calling 'dist banner', so that it would do its job of checking whether
the user still needs to add $GOROOT/bin to their $PATH. That worked for
those scripts, but had no effect on make.bash nor make.bat.

Instead of trying to extend that logic to more scripts, change the
approach to provide dist an unmodified copy of $PATH via an internal
to dist environment variable $DIST_UNMODIFIED_PATH. The make.bash and
make.bat scripts happen to use dist env -p to modify $PATH, making it
viable to add the internal variable there instead of in each script.

It currently works by adding semicolon terminators to dist env output
so that make.bash's 'eval $(dist env -p)' works as before but is able to
export DIST_UNMODIFIED_PATH for following dist invocations to observe.
Nothing needs to be done for Windows since its 'set ENV=val' format
already has that effect.

Plan 9 doesn't use the -p flag of dist env, and checks that GOROOT/bin
is bound before /bin rather than looking at the $PATH env var like other
OSes, so it may not have this bug. I don't have easy access to Plan 9
and haven't tried to confirm.

Fixes #42563.

Change-Id: I74691931167e974a930f7589d22a48bb6b931163
Reviewed-on: https://go-review.googlesource.com/c/go/+/485896
Reviewed-by: Bryan Mills <bcmills@google.com>
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
2023-04-19 14:36:22 +00:00

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Batchfile

:: Copyright 2012 The Go Authors. All rights reserved.
:: Use of this source code is governed by a BSD-style
:: license that can be found in the LICENSE file.
@echo off
setlocal
if exist make.bat goto ok
echo all.bat must be run from go\src
:: cannot exit: would kill parent command interpreter
goto end
:ok
call .\make.bat --no-banner --no-local
if %GOBUILDFAIL%==1 goto end
call .\run.bat --no-rebuild --no-local
if %GOBUILDFAIL%==1 goto end
"%GOTOOLDIR%/dist" banner
:end
if x%GOBUILDEXIT%==x1 exit %GOBUILDFAIL%