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 . ./test-lib.sh
   8
   9 test_expect_success 'prepare repository' '
  10         echo 1 > A &&
  11         git add A &&
  12         git commit -m 1 &&
  13         echo 2 > A &&
  14         git add A &&
  15         git commit -m 2 &&
  16         git symbolic-ref HEAD refs/heads/other &&
  17         rm .git/index &&
  18         echo 3 > B &&
  19         git add B &&
  20         git commit -m 3 &&
  21         echo 1 > A &&
  22         git add A &&
  23         git commit -m 1b &&
  24         echo 4 > B &&
  25         git add B &&
  26         git commit -m 4
  27 '
  28
  29 test_expect_success 'rebase --root expects --onto' '
  30         test_must_fail git rebase --root
  31 '
  32
  33 test_expect_success 'setup pre-rebase hook' '
  34         mkdir -p .git/hooks &&
  35         cat >.git/hooks/pre-rebase <<EOF &&
  36 #!$SHELL_PATH
  37 echo "\$1,\$2" >.git/PRE-REBASE-INPUT
  38 EOF
  39         chmod +x .git/hooks/pre-rebase
  40 '
  41 cat > expect <<EOF
  42 4
  43 3
  44 2
  45 1
  46 EOF
  47
  48 test_expect_success 'rebase --root --onto <newbase>' '
  49         git checkout -b work &&
  50         git rebase --root --onto master &&
  51         git log --pretty=tformat:"%s" > rebased &&
  52         test_cmp expect rebased
  53 '
  54
  55 test_expect_success 'pre-rebase got correct input (1)' '
  56         test "z$(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 master 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$(cat .git/PRE-REBASE-INPUT)" = z--root,work2
  68 '
  69
  70 test_expect_success 'rebase -i --root --onto <newbase>' '
  71         git checkout -b work3 other &&
  72         GIT_EDITOR=: git rebase -i --root --onto master &&
  73         git log --pretty=tformat:"%s" > rebased3 &&
  74         test_cmp expect rebased3
  75 '
  76
  77 test_expect_success 'pre-rebase got correct input (3)' '
  78         test "z$(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_EDITOR=: git rebase -i --root --onto master 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$(cat .git/PRE-REBASE-INPUT)" = z--root,work4
  90 '
  91
  92 test_expect_success 'rebase -i -p with linear history' '
  93         git checkout -b work5 other &&
  94         GIT_EDITOR=: git rebase -i -p --root --onto master &&
  95         git log --pretty=tformat:"%s" > rebased5 &&
  96         test_cmp expect rebased5
  97 '
  98
  99 test_expect_success 'pre-rebase got correct input (5)' '
 100         test "z$(cat .git/PRE-REBASE-INPUT)" = z--root,
 101 '
 102
 103 test_expect_success 'set up merge history' '
 104         git checkout other^ &&
 105         git checkout -b side &&
 106         echo 5 > C &&
 107         git add C &&
 108         git commit -m 5 &&
 109         git checkout other &&
 110         git merge side
 111 '
 112
 113 sed 's/#/ /g' > expect-side <<'EOF'
 114 *   Merge branch 'side' into other
 115 |\##
 116 | * 5
 117 * | 4
 118 |/##
 119 * 3
 120 * 2
 121 * 1
 122 EOF
 123
 124 test_expect_success 'rebase -i -p with merge' '
 125         git checkout -b work6 other &&
 126         GIT_EDITOR=: git rebase -i -p --root --onto master &&
 127         git log --graph --topo-order --pretty=tformat:"%s" > rebased6 &&
 128         test_cmp expect-side rebased6
 129 '
 130
 131 test_expect_success 'set up second root and merge' '
 132         git symbolic-ref HEAD refs/heads/third &&
 133         rm .git/index &&
 134         rm A B C &&
 135         echo 6 > D &&
 136         git add D &&
 137         git commit -m 6 &&
 138         git checkout other &&
 139         git merge third
 140 '
 141
 142 sed 's/#/ /g' > expect-third <<'EOF'
 143 *   Merge branch 'third' into other
 144 |\##
 145 | * 6
 146 * |   Merge branch 'side' into other
 147 |\ \##
 148 | * | 5
 149 * | | 4
 150 |/ /##
 151 * | 3
 152 |/##
 153 * 2
 154 * 1
 155 EOF
 156
 157 test_expect_success 'rebase -i -p with two roots' '
 158         git checkout -b work7 other &&
 159         GIT_EDITOR=: git rebase -i -p --root --onto master &&
 160         git log --graph --topo-order --pretty=tformat:"%s" > rebased7 &&
 161         test_cmp expect-third rebased7
 162 '
 163
 164 test_expect_success 'setup pre-rebase hook that fails' '
 165         mkdir -p .git/hooks &&
 166         cat >.git/hooks/pre-rebase <<EOF &&
 167 #!$SHELL_PATH
 168 false
 169 EOF
 170         chmod +x .git/hooks/pre-rebase
 171 '
 172
 173 test_expect_success 'pre-rebase hook stops rebase' '
 174         git checkout -b stops1 other &&
 175         GIT_EDITOR=: test_must_fail git rebase --root --onto master &&
 176         test "z$(git symbolic-ref HEAD)" = zrefs/heads/stops1
 177         test 0 = $(git rev-list other...stops1 | wc -l)
 178 '
 179
 180 test_expect_success 'pre-rebase hook stops rebase -i' '
 181         git checkout -b stops2 other &&
 182         GIT_EDITOR=: test_must_fail git rebase --root --onto master &&
 183         test "z$(git symbolic-ref HEAD)" = zrefs/heads/stops2
 184         test 0 = $(git rev-list other...stops2 | wc -l)
 185 '
 186
 187 test_done