1 env GO111MODULE=on
2
3 # Derive module path from import comment.
4 cd $WORK/x
5 exists x.go
6 go mod init
7 stderr 'module x'
8
9 # Import comment works even with CRLF line endings.
10 rm go.mod
11 replace '\n' '\r\n' x.go
12 go mod init
13 stderr 'module x'
14
15 # Derive module path from location inside GOPATH.
16 # 'go mod init' should succeed if modules are not explicitly disabled.
17 cd $GOPATH/src/example.com/x/y
18 go mod init
19 stderr 'module example.com/x/y$'
20 rm go.mod
21
22 # go mod init rejects a zero-length go.mod file
23 cp $devnull go.mod # can't use touch to create it because Windows
24 ! go mod init
25 stderr 'go.mod already exists'
26
27 # Module path from Godeps/Godeps.json overrides GOPATH.
28 cd $GOPATH/src/example.com/x/y/z
29 go mod init
30 stderr 'unexpected.com/z'
31 rm go.mod
32
33 # Empty directory outside GOPATH fails.
34 mkdir $WORK/empty
35 cd $WORK/empty
36 ! go mod init
37 stderr 'cannot determine module path for source directory'
38 rm go.mod
39
40 # Empty directory inside GOPATH/src uses location inside GOPATH.
41 mkdir $GOPATH/src/empty
42 cd $GOPATH/src/empty
43 go mod init
44 stderr 'empty'
45 rm go.mod
46
47 # In Plan 9, directories are automatically created in /n.
48 # For example, /n/go.mod always exist, but it's a directory.
49 # Test that we ignore directories when trying to find go.mod.
50 cd $WORK/gomoddir
51 ! go list .
52 stderr '^go: go.mod file not found in current directory or any parent directory; see ''go help modules''$'
53
54 [!symlink] stop
55
56 # gplink1/src/empty where gopathlink -> GOPATH
57 symlink $WORK/gopathlink -> gopath
58 cd $WORK/gopathlink/src/empty
59 go mod init
60 rm go.mod
61
62 # GOPATH/src/link where link -> out of GOPATH
63 symlink $GOPATH/src/link -> $WORK/empty
64 cd $WORK/empty
65 ! go mod init
66 cd $GOPATH/src/link
67 go mod init
68 stderr link
69 rm go.mod
70
71 # GOPATH/src/empty where GOPATH itself is a symlink
72 env GOPATH=$WORK/gopathlink
73 cd $GOPATH/src/empty
74 go mod init
75 rm go.mod
76 cd $WORK/gopath/src/empty
77 go mod init
78 rm go.mod
79
80 # GOPATH/src/link where GOPATH and link are both symlinks
81 cd $GOPATH/src/link
82 go mod init
83 stderr link
84 rm go.mod
85
86 # Too hard: doesn't match unevaluated nor completely evaluated. (Only partially evaluated.)
87 # Whether this works depends on which OS we are running on.
88 # cd $WORK/gopath/src/link
89 # ! go mod init
90
91 -- $WORK/x/x.go --
92 package x // import "x"
93
94 -- $GOPATH/src/example.com/x/y/y.go --
95 package y
96 -- $GOPATH/src/example.com/x/y/z/z.go --
97 package z
98 -- $GOPATH/src/example.com/x/y/z/Godeps/Godeps.json --
99 {"ImportPath": "unexpected.com/z"}
100
101 -- $WORK/gomoddir/go.mod/README.txt --
102 ../go.mod is a directory, not a file.
103 -- $WORK/gomoddir/p.go --
104 package p
105
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