1[!net:proxy.golang.org] skip
2[!net:sum.golang.org] skip
3
4env GO111MODULE=on
5[go-builder] env GOSUMDB=
6[!go-builder] env GOSUMDB=sum.golang.org # Set explicitly in case GOROOT/go.env is modified.
7env GOPATH=$WORK/gopath1
8
9# With a file-based proxy with an empty checksum directory,
10# downloading a new module should fail, even if a subsequent
11# proxy contains a more complete mirror of the sum database.
12#
13# TODO(bcmills): The error message here is a bit redundant.
14# It comes from the sumweb package, which isn't yet producing structured errors.
15[GOOS:windows] env GOPROXY=file:///$WORK/sumproxy,https://proxy.golang.org
16[!GOOS:windows] env GOPROXY=file://$WORK/sumproxy,https://proxy.golang.org
17! go get golang.org/x/text@v0.3.2
18stderr '^go: golang.org/x/text@v0.3.2: verifying module: golang.org/x/text@v0.3.2: reading file://.*/sumdb/sum.golang.org/lookup/golang.org/x/text@v0.3.2: (no such file or directory|.*cannot find the path specified.*)'
19
20# If the proxy does not claim to support the database,
21# checksum verification should fall through to the next proxy,
22# and downloading should succeed.
23[GOOS:windows] env GOPROXY=file:///$WORK/emptyproxy,https://proxy.golang.org
24[!GOOS:windows] env GOPROXY=file://$WORK/emptyproxy,https://proxy.golang.org
25go get golang.org/x/text@v0.3.2
26
27# After a successful sumdb lookup, the lookup can be repeated
28# using the download cache as a proxy.
29cp supported $GOPATH/pkg/mod/cache/download/sumdb/sum.golang.org/supported
30[GOOS:windows] env GOPROXY=file:///$WORK/gopath1/pkg/mod/cache/download,file:///$WORK/sumproxy
31[!GOOS:windows] env GOPROXY=file://$WORK/gopath1/pkg/mod/cache/download,file://$WORK/sumproxy
32env GOPATH=$WORK/gopath2
33rm go.sum
34go get -x -v golang.org/x/text@v0.3.2
35
36# Once the checksum is present in the go.sum file,
37# an empty file-based sumdb can be used in conjunction with
38# a fallback module mirror.
39grep golang.org/x/text go.sum
40env GOPATH=$WORK/gopath3
41[GOOS:windows] env GOPROXY=file:///$WORK/sumproxy
42[!GOOS:windows] env GOPROXY=file://$WORK/sumproxy
43! go get golang.org/x/text@v0.3.2
44[GOOS:windows] env GOPROXY=file:///$WORK/sumproxy,https://proxy.golang.org
45[!GOOS:windows] env GOPROXY=file://$WORK/sumproxy,https://proxy.golang.org
46go get golang.org/x/text@v0.3.2
47
48-- supported --
49
50-- go.mod --
51module example.com
52go 1.13
53-- $WORK/emptyproxy/README.md --
54This proxy contains no modules.
55-- $WORK/sumproxy/README.md --
56This proxy contains no modules.
57-- $WORK/sumproxy/sumdb/sum.golang.org/supported --
58This proxy blocks checksum downloads from sum.golang.org.
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