cd $WORK/x
go mod edit -fmt
go list -mod=readonly
env GOPROXY=file:///nonexist
go list
grep v1.5.1 $GOPATH/pkg/mod/cache/download/rsc.io/quote/@v/list

# Use download cache as file:/// proxy.
env GOPATH=$WORK/gopath2
[GOOS:windows] env GOPROXY=file:///C:/nonexist
[!GOOS:windows] env GOPROXY=file:///nonexist
! go list
[GOOS:windows] env GOPROXY=file:///$WORK/gopath1/pkg/mod/cache/download

env GO111MODULE=on
env GOPROXY=$GOPROXY/invalid

! go list -m rsc.io/quote@latest
stderr '^go: module rsc.io/quote: invalid response from proxy "'$GOPROXY'": invalid character ''i'' looking for beginning of value$'

! go list -m rsc.io/quote@1.5.2

env GO111MODULE=on

# GOPROXY file paths must provide the "file://" prefix explicitly.
env GOPROXY=$WORK/proxydir
! go list -versions -m golang.org/x/text
stderr 'invalid proxy URL.*proxydir'

[!net:proxy.golang.org] stop

# GOPROXY HTTPS paths may elide the "https://" prefix.
# (See golang.org/issue/32191.)
env GOPROXY=proxy.golang.org
env GOSUMDB=
go list -versions -m golang.org/x/text

-- go.mod --
module example.com
go 1.13

env GO111MODULE=on
env GOPROXYBASE=$GOPROXY
env GOPROXY=$GOPROXYBASE/redirect/11
env GOSUMDB=off

! go mod download rsc.io/quote@v1.2.0
stderr 'stopped after 10 redirects'

env GOPROXY=$GOPROXYBASE/redirect/9

# commands tidy executes.
# Verifies golang.org/issue/35849

rm $GOPATH/pkg/mod/cache/download/rsc.io/quote
go mod tidy
! stderr 'get '$GOPROXY

rm $GOPATH/pkg/mod/cache/download/rsc.io/quote
go mod tidy -x
stderr 'get '$GOPROXY

-- go.mod --
module example.com/mod

-- a.go --
package mod

env GOPROXY=file:///$WORK/emptysub
cp go.mod.orig go.mod
go get example.com/join/subpkg
go list -m example.com/join/...
! stdout 'example.com/join/subpkg'
stdout 'example.com/join v1.1.0'

# If @v/list includes a version that the proxy does not actually serve,
# that version is treated as nonexistent.
env GOPROXY=file:///$WORK/notfound
cp go.mod.orig go.mod
go get example.com/join/subpkg
go list -m example.com/join/...

! stdout '"Ref":'
! stdout '"TagSum":'
! stdout '"Reuse":'


# With GOPROXY=direct, the -reuse flag has an effect, but
# the Origin data from the proxy should not be sufficient
# for the proxy response to be reused.

env GOPROXY=direct

go list -reuse=proxy-latest.json -m -json vcs-test.golang.org/git/issue61415.git@latest
stdout '"Version": "v0.0.0-20231114180001-f213069baa68"'

# This test checks that "go mod tidy -e" do not panic when
# using a file goproxy that is missing some modules.
# Verifies golang.org/issue/51589

# download the modules first
env GO111MODULE=on
env GOPATH=$WORK/gopath
cd $WORK/x
go mod tidy

# Use download cache as file:/// proxy.
[GOOS:windows] env GOPROXY=file:///$WORK/gopath/pkg/mod/cache/download
[!GOOS:windows] env GOPROXY=file://$WORK/gopath/pkg/mod/cache/download

env GO111MODULE=on
env sumdb=$GOSUMDB
env proxy=$GOPROXY
env GOPROXY GONOPROXY GOSUMDB GONOSUMDB
env dbname=localhost.localdev/sumdb

# disagreeing with the sumdb produces security errors
# (this also populates tiles on the sumdb server).
cp go.mod.orig go.mod
env GOSUMDB=$sumdb' '$proxy/sumdb-wrong
! go get rsc.io/quote
stderr 'go: rsc.io/quote@v1.5.2: verifying module: checksum mismatch'
stderr 'downloaded: h1:3fEy'

        | while read -r F; do \
            dirname "${F}"; \
        done
    )

# Detect problematic GOPROXY settings that prevent lookup of dependencies
if [[ "${GOPROXY:-}" == "off" ]]; then
  kube::log::error "Cannot run hack/update-internal-modules.sh with \$GOPROXY=off"
  exit 1
fi

kube::golang::setup_env

for mod in "${MODULES[@]}"; do
  echo "=== tidying go.mod/go.sum in ${mod}"