golang/go
cmd/go: several commands require the build cache but don't use it
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#39.882 geöffnet am 26.06.2020
GoCommandNeedsFixhelp wanted
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Steps to repro:
docker run -i golang:1.15beta1 <<-SCRIPT
set -ex
go version
go env
mkdir /tmp/foo
cd /tmp/foo
go mod init test
go mod edit -go=1.13
HOME= GOCACHE= go mod edit -go=1.14
SCRIPT
I think this should succeed. go mod edit -go=X only has to modify a line in go.mod, it shouldn't require the build cache to exist or be writeable. However, that last command fails:
+ go mod edit -go=1.14
build cache is required, but could not be located: GOCACHE is not defined and neither $XDG_CACHE_HOME nor $HOME are defined
I encountered this while writing some tests, which are run in a temporary directory with a near-empty environment (partly to not pollute the user's $HOME and such).