| # As of Go 1.12, the module cache is required. |
| |
| # If none of the variables we use to locate GOCACHE are set, the cache is off |
| # and we cannot build. |
| env GOCACHE= |
| env XDG_CACHE_HOME= |
| env HOME= |
| [plan9] env home= |
| [windows] env LocalAppData= |
| ! go build -o triv triv.go |
| stderr 'build cache is required, but could not be located: GOCACHE is not defined and .*' |
| |
| # An explicit GOCACHE=off also disables builds. |
| env GOCACHE=off |
| ! go build -o triv triv.go |
| stderr 'build cache is disabled by GOCACHE=off' |
| |
| # If GOCACHE is set to an unwritable directory, we should diagnose it as such. |
| [windows] stop # Does not support unwritable directories. |
| [root] skip # Can write to unwritable directories. |
| |
| mkdir $WORK/unwritable/home |
| chmod 0555 $WORK/unwritable/home |
| [!plan9] env HOME=$WORK/unwritable/home |
| [plan9] env home=$WORK/unwritable/home |
| |
| env GOCACHE=$WORK/unwritable/home |
| ! go build -o triv triv.go |
| stderr 'failed to initialize build cache.* permission denied' |
| |
| -- triv.go -- |
| package main |
| func main() {} |
