3 test_description='git-merge
5 Do not overwrite changes.'
9 test_expect_success 'setup' '
10 test_commit c0 c0.c &&
11 test_commit c1 c1.c &&
12 test_commit c1a c1.c "c1 a" &&
13 git reset --hard c0 &&
14 test_commit c2 c2.c &&
15 git reset --hard c0 &&
17 echo "sub/f" > sub/f &&
19 echo "sub2/f" > sub2/f &&
20 git add sub/f sub2/f &&
23 echo "VERY IMPORTANT CHANGES" > important
26 test_expect_success 'will not overwrite untracked file' '
27 git reset --hard c1 &&
29 test_must_fail git merge c2 &&
30 test_path_is_missing .git/MERGE_HEAD &&
31 test_cmp important c2.c
34 test_expect_success 'will overwrite tracked file' '
35 git reset --hard c1 &&
38 git commit -m important &&
42 test_expect_success 'will not overwrite new file' '
43 git reset --hard c1 &&
46 test_must_fail git merge c2 &&
47 test_path_is_missing .git/MERGE_HEAD &&
48 test_cmp important c2.c
51 test_expect_success 'will not overwrite staged changes' '
52 git reset --hard c1 &&
56 test_must_fail git merge c2 &&
57 test_path_is_missing .git/MERGE_HEAD &&
59 test_cmp important c2.c
62 test_expect_success 'will not overwrite removed file' '
63 git reset --hard c1 &&
65 git commit -m "rm c1.c" &&
67 test_must_fail git merge c1a &&
68 test_cmp important c1.c
71 test_expect_success 'will not overwrite re-added file' '
72 git reset --hard c1 &&
74 git commit -m "rm c1.c" &&
77 test_must_fail git merge c1a &&
78 test_path_is_missing .git/MERGE_HEAD &&
79 test_cmp important c1.c
82 test_expect_success 'will not overwrite removed file with staged changes' '
83 git reset --hard c1 &&
85 git commit -m "rm c1.c" &&
89 test_must_fail git merge c1a &&
90 test_path_is_missing .git/MERGE_HEAD &&
92 test_cmp important c1.c
95 test_expect_success 'will not overwrite untracked subtree' '
96 git reset --hard c0 &&
99 cp important sub/f/important &&
100 test_must_fail git merge sub &&
101 test_path_is_missing .git/MERGE_HEAD &&
102 test_cmp important sub/f/important
106 error: The following untracked working tree files would be overwritten by merge:
109 Please move or remove them before you can merge.
113 test_expect_success 'will not overwrite untracked file in leading path' '
114 git reset --hard c0 &&
118 test_must_fail git merge sub 2>out &&
119 test_cmp out expect &&
120 test_path_is_missing .git/MERGE_HEAD &&
121 test_cmp important sub &&
122 test_cmp important sub2 &&
126 test_expect_success SYMLINKS 'will not overwrite untracked symlink in leading path' '
127 git reset --hard c0 &&
131 test_must_fail git merge sub &&
132 test_path_is_missing .git/MERGE_HEAD
135 test_expect_success SYMLINKS 'will not be confused by symlink in leading path' '
136 git reset --hard c0 &&
145 error: Untracked working tree file 'c0.c' would be overwritten by merge.
146 fatal: read-tree failed
149 test_expect_success 'will not overwrite untracked file on unborn branch' '
150 git reset --hard c0 &&
152 git checkout --orphan new &&
154 test_must_fail git merge c0 2>out &&
155 test_i18ncmp out expect
158 test_expect_success 'will not overwrite untracked file on unborn branch .git/MERGE_HEAD sanity etc.' '
159 test_when_finished "rm c0.c" &&
160 test_path_is_missing .git/MERGE_HEAD &&
161 test_cmp important c0.c
164 test_expect_success 'failed merge leaves unborn branch in the womb' '
165 test_must_fail git rev-parse --verify HEAD
168 test_expect_success 'set up unborn branch and content' '
169 git symbolic-ref HEAD refs/heads/unborn &&
171 echo foo > tracked-file &&
172 git add tracked-file &&
173 echo bar > untracked-file
176 test_expect_success 'will not clobber WT/index when merging into unborn' '
178 grep foo tracked-file &&
179 git show :tracked-file >expect &&
181 grep bar untracked-file