tree 90860b627c9c4135e5aa7901862fc754f62d9ad1
parent 7e966852b8b669b490c440025b6e4a430b5bfac6
author Bryan C. Mills <bcmills@google.com> 1633101220 -0400
committer Bryan C. Mills <bcmills@google.com> 1633706156 +0000

all: consistently set PWD to match Dir for subprocesses

Also consistently deduplicate Env entries, mainly to reduce confusion
when reading logs.

This change is probably larger than what is strictly needed to fix the
issue, but it seemed simpler than trying to figure out which of the
many calls to exec.Command in the module are actually relevant.
(It also provides some useful case studies for possible additions to
the Go standard library.)

For golang/go#33598

Change-Id: Ia2bce4549e4a71b56fb497e3df093f79fbcf7f29
Reviewed-on: https://go-review.googlesource.com/c/build/+/353549
Trust: Bryan C. Mills <bcmills@google.com>
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>