t/t3412-rebase-root.sh

   1 #!/bin/sh
   2
   3 test_description='git rebase --root
   4
   5 Tests if git rebase --root --onto <newparent> can rebase the root commit.
   6 '
   7 GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
   8 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
   9
  10 . ./test-lib.sh
  11
  12 log_with_names () {
  13         git rev-list --topo-order --parents --pretty="tformat:%s" HEAD |
  14         git name-rev --stdin --name-only --refs=refs/heads/$1
  15 }
  16
  17
  18 test_expect_success 'prepare repository' '
  19         test_commit 1 A &&
  20         test_commit 2 A &&
  21         git symbolic-ref HEAD refs/heads/other &&
  22         rm .git/index &&
  23         test_commit 3 B &&
  24         test_commit 1b A 1 &&
  25         test_commit 4 B
  26 '
  27
  28 test_expect_success 'rebase --root fails with too many args' '
  29         git checkout -B fail other &&
  30         test_must_fail git rebase --onto main --root fail fail
  31 '
  32
  33 test_expect_success 'setup pre-rebase hook' '
  34         mkdir -p .git/hooks &&
  35         cat >.git/hooks/pre-rebase <<EOF &&
  36 #!$SHELL_PATH
  37 echo "\$1,\$2" >.git/PRE-REBASE-INPUT
  38 EOF
  39         chmod +x .git/hooks/pre-rebase
  40 '
  41 cat > expect <<EOF
  42 4
  43 3
  44 2
  45 1
  46 EOF
  47
  48 test_expect_success 'rebase --root --onto <newbase>' '
  49         git checkout -b work other &&
  50         git rebase --root --onto main &&
  51         git log --pretty=tformat:"%s" > rebased &&
  52         test_cmp expect rebased
  53 '
  54
  55 test_expect_success 'pre-rebase got correct input (1)' '
  56         test "z$(cat .git/PRE-REBASE-INPUT)" = z--root,
  57 '
  58
  59 test_expect_success 'rebase --root --onto <newbase> <branch>' '
  60         git branch work2 other &&
  61         git rebase --root --onto main work2 &&
  62         git log --pretty=tformat:"%s" > rebased2 &&
  63         test_cmp expect rebased2
  64 '
  65
  66 test_expect_success 'pre-rebase got correct input (2)' '
  67         test "z$(cat .git/PRE-REBASE-INPUT)" = z--root,work2
  68 '
  69
  70 test_expect_success 'rebase -i --root --onto <newbase>' '
  71         git checkout -b work3 other &&
  72         git rebase -i --root --onto main &&
  73         git log --pretty=tformat:"%s" > rebased3 &&
  74         test_cmp expect rebased3
  75 '
  76
  77 test_expect_success 'pre-rebase got correct input (3)' '
  78         test "z$(cat .git/PRE-REBASE-INPUT)" = z--root,
  79 '
  80
  81 test_expect_success 'rebase -i --root --onto <newbase> <branch>' '
  82         git branch work4 other &&
  83         git rebase -i --root --onto main work4 &&
  84         git log --pretty=tformat:"%s" > rebased4 &&
  85         test_cmp expect rebased4
  86 '
  87
  88 test_expect_success 'pre-rebase got correct input (4)' '
  89         test "z$(cat .git/PRE-REBASE-INPUT)" = z--root,work4
  90 '
  91
  92 test_expect_success 'set up merge history' '
  93         git checkout other^ &&
  94         git checkout -b side &&
  95         test_commit 5 C &&
  96         git checkout other &&
  97         git merge side
  98 '
  99
 100 cat > expect-side <<'EOF'
 101 commit work6 work6~1 work6^2
 102 Merge branch 'side' into other
 103 commit work6^2 work6~2
 104 5
 105 commit work6~1 work6~2
 106 4
 107 commit work6~2 work6~3
 108 3
 109 commit work6~3 work6~4
 110 2
 111 commit work6~4
 112 1
 113 EOF
 114
 115 test_expect_success 'set up second root and merge' '
 116         git symbolic-ref HEAD refs/heads/third &&
 117         rm .git/index &&
 118         rm A B C &&
 119         test_commit 6 D &&
 120         git checkout other &&
 121         git merge --allow-unrelated-histories third
 122 '
 123
 124 cat > expect-third <<'EOF'
 125 commit work7 work7~1 work7^2
 126 Merge branch 'third' into other
 127 commit work7^2 work7~4
 128 6
 129 commit work7~1 work7~2 work7~1^2
 130 Merge branch 'side' into other
 131 commit work7~1^2 work7~3
 132 5
 133 commit work7~2 work7~3
 134 4
 135 commit work7~3 work7~4
 136 3
 137 commit work7~4 work7~5
 138 2
 139 commit work7~5
 140 1
 141 EOF
 142
 143 test_expect_success 'setup pre-rebase hook that fails' '
 144         mkdir -p .git/hooks &&
 145         cat >.git/hooks/pre-rebase <<EOF &&
 146 #!$SHELL_PATH
 147 false
 148 EOF
 149         chmod +x .git/hooks/pre-rebase
 150 '
 151
 152 test_expect_success 'pre-rebase hook stops rebase' '
 153         git checkout -b stops1 other &&
 154         test_must_fail git rebase --root --onto main &&
 155         test "z$(git symbolic-ref HEAD)" = zrefs/heads/stops1 &&
 156         test 0 = $(git rev-list other...stops1 | wc -l)
 157 '
 158
 159 test_expect_success 'pre-rebase hook stops rebase -i' '
 160         git checkout -b stops2 other &&
 161         test_must_fail git rebase --root --onto main &&
 162         test "z$(git symbolic-ref HEAD)" = zrefs/heads/stops2 &&
 163         test 0 = $(git rev-list other...stops2 | wc -l)
 164 '
 165
 166 test_expect_success 'remove pre-rebase hook' '
 167         rm -f .git/hooks/pre-rebase
 168 '
 169
 170 test_expect_success 'set up a conflict' '
 171         git checkout main &&
 172         echo conflict > B &&
 173         git add B &&
 174         git commit -m conflict
 175 '
 176
 177 test_expect_success 'rebase --root with conflict (first part)' '
 178         git checkout -b conflict1 other &&
 179         test_must_fail git rebase --root --onto main &&
 180         git ls-files -u | grep "B$"
 181 '
 182
 183 test_expect_success 'fix the conflict' '
 184         echo 3 > B &&
 185         git add B
 186 '
 187
 188 cat > expect-conflict <<EOF
 189 6
 190 5
 191 4
 192 3
 193 conflict
 194 2
 195 1
 196 EOF
 197
 198 test_expect_success 'rebase --root with conflict (second part)' '
 199         git rebase --continue &&
 200         git log --pretty=tformat:"%s" > conflict1 &&
 201         test_cmp expect-conflict conflict1
 202 '
 203
 204 test_expect_success 'rebase -i --root with conflict (first part)' '
 205         git checkout -b conflict2 other &&
 206         test_must_fail git rebase -i --root --onto main &&
 207         git ls-files -u | grep "B$"
 208 '
 209
 210 test_expect_success 'fix the conflict' '
 211         echo 3 > B &&
 212         git add B
 213 '
 214
 215 test_expect_success 'rebase -i --root with conflict (second part)' '
 216         git rebase --continue &&
 217         git log --pretty=tformat:"%s" > conflict2 &&
 218         test_cmp expect-conflict conflict2
 219 '
 220
 221 cat >expect-conflict-p <<\EOF
 222 commit conflict3 conflict3~1 conflict3^2
 223 Merge branch 'third' into other
 224 commit conflict3^2 conflict3~4
 225 6
 226 commit conflict3~1 conflict3~2 conflict3~1^2
 227 Merge branch 'side' into other
 228 commit conflict3~1^2 conflict3~3
 229 5
 230 commit conflict3~2 conflict3~3
 231 4
 232 commit conflict3~3 conflict3~4
 233 3
 234 commit conflict3~4 conflict3~5
 235 conflict
 236 commit conflict3~5 conflict3~6
 237 2
 238 commit conflict3~6
 239 1
 240 EOF
 241
 242 test_expect_success 'fix the conflict' '
 243         echo 3 > B &&
 244         git add B
 245 '
 246
 247 test_done