1cp go.mod go.mod.orig
2
3
4# If a dependency cannot be resolved, 'go mod tidy' fails with an error message
5# explaining the problem and does not update the go.mod file.
6# TODO(bcmills): Ideally, with less redundancy than these error messages!
7
8! go mod tidy
9
10stderr '^go: example.com/untidy imports\n\texample.net/directnotfound: cannot find module providing package example.net/directnotfound: module example.net/directnotfound: reading http://.*: 404 Not Found$'
11
12stderr '^go: example.com/untidy imports\n\texample.net/m imports\n\texample.net/indirectnotfound: cannot find module providing package example.net/indirectnotfound: module example.net/indirectnotfound: reading http://.*: 404 Not Found$'
13
14stderr '^go: example.com/untidy tested by\n\texample.com/untidy.test imports\n\texample.net/directtestnotfound: cannot find module providing package example.net/directtestnotfound: module example.net/directtestnotfound: reading http://.*: 404 Not Found$'
15
16stderr '^go: example.com/untidy imports\n\texample.net/m tested by\n\texample.net/m.test imports\n\texample.net/indirecttestnotfound: cannot find module providing package example.net/indirecttestnotfound: module example.net/indirecttestnotfound: reading http://.*: 404 Not Found$'
17
18cmp go.mod.orig go.mod
19
20
21# If a dependency cannot be resolved, 'go mod vendor' fails with an error message
22# explaining the problem, does not update the go.mod file, and does not create
23# the vendor directory.
24
25! go mod vendor
26
27stderr '^go: example.com/untidy imports\n\texample.net/directnotfound: no required module provides package example.net/directnotfound; to add it:\n\tgo get example.net/directnotfound$'
28
29stderr '^go: example.com/untidy imports\n\texample.net/m: module example.net/m provides package example.net/m and is replaced but not required; to add it:\n\tgo get example.net/m@v0.1.0$'
30
31stderr '^go: example.com/untidy tested by\n\texample.com/untidy.test imports\n\texample.net/directtestnotfound: no required module provides package example.net/directtestnotfound; to add it:\n\tgo get example.net/directtestnotfound$'
32
33! stderr 'indirecttestnotfound' # Vendor prunes test dependencies.
34
35cmp go.mod.orig go.mod
36! exists vendor
37
38
39# 'go mod tidy' still logs the errors, but succeeds and updates go.mod.
40
41go mod tidy -e
42stderr -count=4 'cannot find module providing package'
43cmp go.mod.final go.mod
44
45
46# 'go mod vendor -e' still logs the errors, but creates a vendor directory
47# and exits with status 0.
48# 'go mod vendor -e' does not update go.mod and will not vendor packages that
49# would require changing go.mod, for example, by adding a requirement.
50cp go.mod.orig go.mod
51go mod vendor -e
52stderr -count=2 'no required module provides package'
53stderr '^go: example.com/untidy imports\n\texample.net/m: module example.net/m provides package example.net/m and is replaced but not required; to add it:\n\tgo get example.net/m@v0.1.0$'
54exists vendor/modules.txt
55! exists vendor/example.net
56
57go mod edit -require example.net/m@v0.1.0
58go mod vendor -e
59stderr -count=3 'no required module provides package'
60exists vendor/modules.txt
61exists vendor/example.net/m/m.go
62
63-- go.mod --
64module example.com/untidy
65go 1.16
66replace example.net/m v0.1.0 => ./m
67-- go.mod.final --
68module example.com/untidy
69
70go 1.16
71
72replace example.net/m v0.1.0 => ./m
73
74require example.net/m v0.1.0
75-- untidy.go --
76package untidy
77
78import (
79 _ "example.net/m"
80 _ "example.net/directnotfound"
81)
82-- untidy_test.go --
83package untidy_test
84
85import _ "example.net/directtestnotfound"
86-- m/go.mod --
87module example.net/m
88go 1.16
89-- m/m.go --
90package m
91
92import _ "example.net/indirectnotfound"
93-- m/m_test.go --
94package m_test
95
96import _ "example.net/indirecttestnotfound"
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