1env GO111MODULE=on
2
3# Derive module path from import comment.
4cd $WORK/x
5exists x.go
6go mod init
7stderr 'module x'
8
9# Import comment works even with CRLF line endings.
10rm go.mod
11replace '\n' '\r\n' x.go
12go mod init
13stderr 'module x'
14
15# Derive module path from location inside GOPATH.
16# 'go mod init' should succeed if modules are not explicitly disabled.
17cd $GOPATH/src/example.com/x/y
18go mod init
19stderr 'module example.com/x/y$'
20rm go.mod
21
22# go mod init rejects a zero-length go.mod file
23cp $devnull go.mod # can't use touch to create it because Windows
24! go mod init
25stderr 'go.mod already exists'
26
27# Module path from Godeps/Godeps.json overrides GOPATH.
28cd $GOPATH/src/example.com/x/y/z
29go mod init
30stderr 'unexpected.com/z'
31rm go.mod
32
33# Empty directory outside GOPATH fails.
34mkdir $WORK/empty
35cd $WORK/empty
36! go mod init
37stderr 'cannot determine module path for source directory'
38rm go.mod
39
40# Empty directory inside GOPATH/src uses location inside GOPATH.
41mkdir $GOPATH/src/empty
42cd $GOPATH/src/empty
43go mod init
44stderr 'empty'
45rm 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.
50cd $WORK/gomoddir
51! go list .
52stderr '^go: go.mod file not found in current directory or any parent directory; see ''go help modules''$'
53
54[!symlink] stop
55
56# gplink1/src/empty where gopathlink -> GOPATH
57symlink $WORK/gopathlink -> gopath
58cd $WORK/gopathlink/src/empty
59go mod init
60rm go.mod
61
62# GOPATH/src/link where link -> out of GOPATH
63symlink $GOPATH/src/link -> $WORK/empty
64cd $WORK/empty
65! go mod init
66cd $GOPATH/src/link
67go mod init
68stderr link
69rm go.mod
70
71# GOPATH/src/empty where GOPATH itself is a symlink
72env GOPATH=$WORK/gopathlink
73cd $GOPATH/src/empty
74go mod init
75rm go.mod
76cd $WORK/gopath/src/empty
77go mod init
78rm go.mod
79
80# GOPATH/src/link where GOPATH and link are both symlinks
81cd $GOPATH/src/link
82go mod init
83stderr link
84rm 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 --
92package x // import "x"
93
94-- $GOPATH/src/example.com/x/y/y.go --
95package y
96-- $GOPATH/src/example.com/x/y/z/z.go --
97package 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 --
104package p
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