1# Regression test for golang.org/issue/31481.
2
3env GO111MODULE=on
4
5# golang.org/issue/31481: an explicit flag should make directories in the module
6# cache writable in order to work around the historical inability of 'rm -rf' to
7# forcibly remove files in unwritable directories.
8go get -modcacherw rsc.io/quote@v1.5.2
9cp $WORK/extraneous.txt $GOPATH/pkg/mod/rsc.io/quote@v1.5.2/extraneous_file.go
10
11# After adding an extraneous file, 'go mod verify' should fail.
12! go mod verify
13
14# However, files within those directories should still be read-only to avoid
15# accidental mutations.
16[!root] ! cp $WORK/extraneous.txt $GOPATH/pkg/mod/rsc.io/quote@v1.5.2/go.mod
17
18# If all 'go' commands ran with the flag, the system's 'rm' binary
19# should be able to remove the module cache if the '-rf' flags are set.
20[!GOOS:windows] [exec:rm] exec rm -rf $GOPATH/pkg/mod
21[!GOOS:windows] [!exec:rm] go clean -modcache
22[GOOS:windows] [exec:cmd.exe] exec cmd.exe /c rmdir /s /q $GOPATH\pkg\mod
23[GOOS:windows] [!exec:cmd.exe] go clean -modcache
24! exists $GOPATH/pkg/mod
25
26# The directories in the module cache should by default be unwritable,
27# so that tests and tools will not accidentally add extraneous files to them.
28# Windows does not respect FILE_ATTRIBUTE_READONLY on directories, according
29# to MSDN, so there we disable testing whether the directory itself is
30# unwritable.
31go get rsc.io/quote@latest
32[!root] ! cp $WORK/extraneous.txt $GOPATH/pkg/mod/rsc.io/quote@v1.5.2/go.mod
33[!GOOS:windows] [!root] ! cp $WORK/extraneous.txt $GOPATH/pkg/mod/rsc.io/quote@v1.5.2/extraneous_file.go
34! exists $GOPATH/pkg/mod/rsc.io/quote@v1.5.2/extraneous_file.go
35
36
37# Repeat part of the test with 'go mod download' instead of 'go get' to verify
38# -modcacherw is supported on 'go mod' subcommands.
39go clean -modcache
40go mod download -modcacherw rsc.io/quote
41cp $WORK/extraneous.txt $GOPATH/pkg/mod/rsc.io/quote@v1.5.2/extraneous_file.go
42! go mod verify
43[!root] ! cp $WORK/extraneous.txt $GOPATH/pkg/mod/rsc.io/quote@v1.5.2/go.mod
44
45
46-- $WORK/extraneous.txt --
47module oops
48-- go.mod --
49module golang.org/issue/31481
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