1 # Tests the behavior of the -modfile flag in commands that support it.
2 # The go.mod file exists but should not be read or written.
3 # Same with go.sum.
4
5 env GOFLAGS=-modfile=go.alt.mod
6 cp go.mod go.mod.orig
7 cp go.sum go.sum.orig
8
9
10 # go mod init should create a new file, even though go.mod already exists.
11 go mod init example.com/m
12 grep example.com/m go.alt.mod
13
14 # 'go env GOMOD' should print the path to the real file.
15 # 'go env' does not recognize the '-modfile' flag.
16 go env GOMOD
17 stdout '^'$WORK${/}gopath${/}src${/}'go\.mod$'
18
19 # 'go list -m' should print the effective go.mod file as GoMod though.
20 go list -m -f '{{.GoMod}}'
21 stdout '^go.alt.mod$'
22
23 # go mod edit should operate on the alternate file
24 go mod edit -require rsc.io/quote@v1.5.2
25 grep rsc.io/quote go.alt.mod
26
27 # 'go list -m' should add sums to the alternate go.sum.
28 go list -m -mod=mod all
29 grep '^rsc.io/quote v1.5.2/go.mod ' go.alt.sum
30 ! grep '^rsc.io/quote v1.5.2 ' go.alt.sum
31
32 # other 'go mod' commands should work. 'go mod vendor' is tested later.
33 go mod download rsc.io/quote
34 go mod graph
35 stdout rsc.io/quote
36 go mod tidy
37 grep rsc.io/quote go.alt.sum
38 go mod verify
39 go mod why rsc.io/quote
40
41
42 # 'go list' and other commands with build flags should work.
43 # They should update the alternate go.mod when a dependency is missing.
44 go mod edit -droprequire rsc.io/quote
45 go list -mod=mod .
46 grep rsc.io/quote go.alt.mod
47 go build -n -mod=mod .
48 go test -n -mod=mod .
49 go get rsc.io/quote
50
51 # 'go tool' and tool management should work.
52 go get -tool example.com/tools/cmd/hello@v1.0.0
53 grep cmd/hello go.alt.mod
54 go tool hello
55
56 # 'go mod vendor' should work.
57 go mod vendor
58 exists vendor
59
60 # Automatic vendoring should be broken by editing an explicit requirement
61 # in the alternate go.mod file.
62 go mod edit -require rsc.io/quote@v1.5.1
63 ! go list .
64 go list -mod=mod
65 rm vendor
66
67
68 # 'go generate' should use the alternate file when resolving packages.
69 # Recursive go commands started with 'go generate' should not get an explicitly
70 # passed -modfile, but they should see arguments from GOFLAGS.
71 cp go.alt.mod go.gen.mod
72 env OLD_GOFLAGS=$GOFLAGS
73 env GOFLAGS=-modfile=go.gen.mod
74 go generate -modfile=go.alt.mod .
75 env GOFLAGS=$OLD_GOFLAGS
76 grep example.com/exclude go.gen.mod
77 ! grep example.com/exclude go.alt.mod
78
79
80 # The original files should not have been modified.
81 cmp go.mod go.mod.orig
82 cmp go.sum go.sum.orig
83
84
85 # If the alternate mod file does not have a ".mod" suffix, an error
86 # should be reported.
87 cp go.alt.mod goaltmod
88 ! go mod tidy -modfile=goaltmod
89 stderr '-modfile=goaltmod: file does not have .mod extension'
90
91 -- go.mod --
92 ʕ◔ϖ◔ʔ
93 -- go.sum --
94 ʕ◔ϖ◔ʔ
95 -- use.go --
96 package main
97
98 import _ "rsc.io/quote"
99 -- gen.go --
100 //go:generate go mod edit -exclude example.com/exclude@v1.0.0
101
102 package main
103
View as plain text