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1#!/bin/sh
2#
3# Copyright (C) 2018 Antonio Ospite <ao2@ao2.it>
4#
5
6test_description='Test reading/writing .gitmodules when not in the working tree
7
8This test verifies that, when .gitmodules is in the current branch but is not
9in the working tree reading from it still works but writing to it does not.
10
11The test setup uses a sparse checkout, however the same scenario can be set up
12also by committing .gitmodules and then just removing it from the filesystem.
13'
14
15GIT_TEST_FATAL_REGISTER_SUBMODULE_ODB=1
16export GIT_TEST_FATAL_REGISTER_SUBMODULE_ODB
17
18. ./test-lib.sh
19
20test_expect_success 'setup' '
21 git config --global protocol.file.allow always
22'
23
24test_expect_success 'sparse checkout setup which hides .gitmodules' '
25 git init upstream &&
26 git init submodule &&
27 (cd submodule &&
28 echo file >file &&
29 git add file &&
30 test_tick &&
31 git commit -m "Add file"
32 ) &&
33 (cd upstream &&
34 git submodule add ../submodule &&
35 test_tick &&
36 git commit -m "Add submodule"
37 ) &&
38 git clone --template= upstream super &&
39 (cd super &&
40 mkdir .git/info &&
41 cat >.git/info/sparse-checkout <<-\EOF &&
42 /*
43 !/.gitmodules
44 EOF
45 git config core.sparsecheckout true &&
46 git read-tree -m -u HEAD &&
47 test_path_is_missing .gitmodules
48 )
49'
50
51test_expect_success 'reading gitmodules config file when it is not checked out' '
52 echo "../submodule" >expect &&
53 test-tool -C super submodule config-list submodule.submodule.url >actual &&
54 test_cmp expect actual
55'
56
57test_expect_success 'not writing gitmodules config file when it is not checked out' '
58 test_must_fail test-tool -C super submodule config-set submodule.submodule.url newurl &&
59 test_path_is_missing super/.gitmodules
60'
61
62test_expect_success 'initialising submodule when the gitmodules config is not checked out' '
63 test_must_fail git -C super config submodule.submodule.url &&
64 git -C super submodule init &&
65 git -C super config submodule.submodule.url >actual &&
66 echo "$(pwd)/submodule" >expect &&
67 test_cmp expect actual
68'
69
70test_expect_success 'updating submodule when the gitmodules config is not checked out' '
71 test_path_is_missing super/submodule/file &&
72 git -C super submodule update &&
73 test_cmp submodule/file super/submodule/file
74'
75
76ORIG_SUBMODULE=$(git -C submodule rev-parse HEAD)
77ORIG_UPSTREAM=$(git -C upstream rev-parse HEAD)
78ORIG_SUPER=$(git -C super rev-parse HEAD)
79
80test_expect_success 're-updating submodule when the gitmodules config is not checked out' '
81 test_when_finished "git -C submodule reset --hard $ORIG_SUBMODULE;
82 git -C upstream reset --hard $ORIG_UPSTREAM;
83 git -C super reset --hard $ORIG_SUPER;
84 git -C upstream submodule update --remote;
85 git -C super pull;
86 git -C super submodule update --remote" &&
87 (cd submodule &&
88 echo file2 >file2 &&
89 git add file2 &&
90 test_tick &&
91 git commit -m "Add file2 to submodule"
92 ) &&
93 (cd upstream &&
94 git submodule update --remote &&
95 git add submodule &&
96 test_tick &&
97 git commit -m "Update submodule"
98 ) &&
99 git -C super pull &&
100 # The --for-status options reads the gitmodules config
101 git -C super submodule summary --for-status >actual &&
102 rev1=$(git -C submodule rev-parse --short HEAD) &&
103 rev2=$(git -C submodule rev-parse --short HEAD^) &&
104 cat >expect <<-EOF &&
105 * submodule ${rev1}...${rev2} (1):
106 < Add file2 to submodule
107
108 EOF
109 test_cmp expect actual &&
110 # Test that the update actually succeeds
111 test_path_is_missing super/submodule/file2 &&
112 git -C super submodule update &&
113 test_cmp submodule/file2 super/submodule/file2 &&
114 git -C super status --short >output &&
115 test_must_be_empty output
116'
117
118test_expect_success 'not adding submodules when the gitmodules config is not checked out' '
119 git clone submodule new_submodule &&
120 test_must_fail git -C super submodule add ../new_submodule &&
121 test_path_is_missing .gitmodules
122'
123
124# This test checks that the previous "git submodule add" did not leave the
125# repository in a spurious state when it failed.
126test_expect_success 'init submodule still works even after the previous add failed' '
127 git -C super submodule init
128'
129
130test_done