t/t3507-cherry-pick-conflict.sh

   1 #!/bin/sh
   2
   3 test_description='test cherry-pick and revert with conflicts
   4
   5   -
   6   + picked: rewrites foo to c
   7   + base: rewrites foo to b
   8   + initial: writes foo as a, unrelated as unrelated
   9
  10 '
  11
  12 . ./test-lib.sh
  13
  14 test_cmp_rev () {
  15         git rev-parse --verify "$1" >expect.rev &&
  16         git rev-parse --verify "$2" >actual.rev &&
  17         test_cmp expect.rev actual.rev
  18 }
  19
  20 pristine_detach () {
  21         git checkout -f "$1^0" &&
  22         git read-tree -u --reset HEAD &&
  23         git clean -d -f -f -q -x
  24 }
  25
  26 test_expect_success setup '
  27
  28         echo unrelated >unrelated &&
  29         git add unrelated &&
  30         test_commit initial foo a &&
  31         test_commit base foo b &&
  32         test_commit picked foo c &&
  33         git config advice.detachedhead false
  34
  35 '
  36
  37 test_expect_success 'failed cherry-pick does not advance HEAD' '
  38         pristine_detach initial &&
  39
  40         head=$(git rev-parse HEAD) &&
  41         test_must_fail git cherry-pick picked &&
  42         newhead=$(git rev-parse HEAD) &&
  43
  44         test "$head" = "$newhead"
  45 '
  46
  47 test_expect_success 'advice from failed cherry-pick' "
  48         pristine_detach initial &&
  49
  50         picked=\$(git rev-parse --short picked) &&
  51         cat <<-EOF >expected &&
  52         error: could not apply \$picked... picked
  53         hint: after resolving the conflicts, mark the corrected paths
  54         hint: with 'git add <paths>' or 'git rm <paths>'
  55         hint: and commit the result with 'git commit'
  56         EOF
  57         test_must_fail git cherry-pick picked 2>actual &&
  58
  59         test_cmp expected actual
  60 "
  61
  62 test_expect_success 'failed cherry-pick sets CHERRY_PICK_HEAD' '
  63         pristine_detach initial &&
  64         test_must_fail git cherry-pick picked &&
  65         test_cmp_rev picked CHERRY_PICK_HEAD
  66 '
  67
  68 test_expect_success 'successful cherry-pick does not set CHERRY_PICK_HEAD' '
  69         pristine_detach initial &&
  70         git cherry-pick base &&
  71         test_must_fail git rev-parse --verify CHERRY_PICK_HEAD
  72 '
  73
  74 test_expect_success 'cherry-pick --no-commit does not set CHERRY_PICK_HEAD' '
  75         pristine_detach initial &&
  76         git cherry-pick --no-commit base &&
  77         test_must_fail git rev-parse --verify CHERRY_PICK_HEAD
  78 '
  79
  80 test_expect_success 'GIT_CHERRY_PICK_HELP suppresses CHERRY_PICK_HEAD' '
  81         pristine_detach initial &&
  82         (
  83                 GIT_CHERRY_PICK_HELP="and then do something else" &&
  84                 export GIT_CHERRY_PICK_HELP &&
  85                 test_must_fail git cherry-pick picked
  86         ) &&
  87         test_must_fail git rev-parse --verify CHERRY_PICK_HEAD
  88 '
  89
  90 test_expect_success 'git reset clears CHERRY_PICK_HEAD' '
  91         pristine_detach initial &&
  92
  93         test_must_fail git cherry-pick picked &&
  94         git reset &&
  95
  96         test_must_fail git rev-parse --verify CHERRY_PICK_HEAD
  97 '
  98
  99 test_expect_success 'failed commit does not clear CHERRY_PICK_HEAD' '
 100         pristine_detach initial &&
 101
 102         test_must_fail git cherry-pick picked &&
 103         test_must_fail git commit &&
 104
 105         test_cmp_rev picked CHERRY_PICK_HEAD
 106 '
 107
 108 test_expect_success 'cancelled commit does not clear CHERRY_PICK_HEAD' '
 109         pristine_detach initial &&
 110
 111         test_must_fail git cherry-pick picked &&
 112         echo resolved >foo &&
 113         git add foo &&
 114         git update-index --refresh -q &&
 115         test_must_fail git diff-index --exit-code HEAD &&
 116         (
 117                 GIT_EDITOR=false &&
 118                 export GIT_EDITOR &&
 119                 test_must_fail git commit
 120         ) &&
 121
 122         test_cmp_rev picked CHERRY_PICK_HEAD
 123 '
 124
 125 test_expect_success 'successful commit clears CHERRY_PICK_HEAD' '
 126         pristine_detach initial &&
 127
 128         test_must_fail git cherry-pick picked &&
 129         echo resolved >foo &&
 130         git add foo &&
 131         git commit &&
 132
 133         test_must_fail git rev-parse --verify CHERRY_PICK_HEAD
 134 '
 135
 136 test_expect_success 'failed cherry-pick produces dirty index' '
 137         pristine_detach initial &&
 138
 139         test_must_fail git cherry-pick picked &&
 140
 141         test_must_fail git update-index --refresh -q &&
 142         test_must_fail git diff-index --exit-code HEAD
 143 '
 144
 145 test_expect_success 'failed cherry-pick registers participants in index' '
 146         pristine_detach initial &&
 147         {
 148                 git checkout base -- foo &&
 149                 git ls-files --stage foo &&
 150                 git checkout initial -- foo &&
 151                 git ls-files --stage foo &&
 152                 git checkout picked -- foo &&
 153                 git ls-files --stage foo
 154         } > stages &&
 155         sed "
 156                 1 s/ 0  / 1     /
 157                 2 s/ 0  / 2     /
 158                 3 s/ 0  / 3     /
 159         " < stages > expected &&
 160         git read-tree -u --reset HEAD &&
 161
 162         test_must_fail git cherry-pick picked &&
 163         git ls-files --stage --unmerged > actual &&
 164
 165         test_cmp expected actual
 166 '
 167
 168 test_expect_success 'failed cherry-pick describes conflict in work tree' '
 169         pristine_detach initial &&
 170         cat <<-EOF > expected &&
 171         <<<<<<< HEAD
 172         a
 173         =======
 174         c
 175         >>>>>>> objid picked
 176         EOF
 177
 178         test_must_fail git cherry-pick picked &&
 179
 180         sed "s/[a-f0-9]*\.\.\./objid/" foo > actual &&
 181         test_cmp expected actual
 182 '
 183
 184 test_expect_success 'diff3 -m style' '
 185         pristine_detach initial &&
 186         git config merge.conflictstyle diff3 &&
 187         cat <<-EOF > expected &&
 188         <<<<<<< HEAD
 189         a
 190         ||||||| parent of objid picked
 191         b
 192         =======
 193         c
 194         >>>>>>> objid picked
 195         EOF
 196
 197         test_must_fail git cherry-pick picked &&
 198
 199         sed "s/[a-f0-9]*\.\.\./objid/" foo > actual &&
 200         test_cmp expected actual
 201 '
 202
 203 test_expect_success 'revert also handles conflicts sanely' '
 204         git config --unset merge.conflictstyle &&
 205         pristine_detach initial &&
 206         cat <<-EOF > expected &&
 207         <<<<<<< HEAD
 208         a
 209         =======
 210         b
 211         >>>>>>> parent of objid picked
 212         EOF
 213         {
 214                 git checkout picked -- foo &&
 215                 git ls-files --stage foo &&
 216                 git checkout initial -- foo &&
 217                 git ls-files --stage foo &&
 218                 git checkout base -- foo &&
 219                 git ls-files --stage foo
 220         } > stages &&
 221         sed "
 222                 1 s/ 0  / 1     /
 223                 2 s/ 0  / 2     /
 224                 3 s/ 0  / 3     /
 225         " < stages > expected-stages &&
 226         git read-tree -u --reset HEAD &&
 227
 228         head=$(git rev-parse HEAD) &&
 229         test_must_fail git revert picked &&
 230         newhead=$(git rev-parse HEAD) &&
 231         git ls-files --stage --unmerged > actual-stages &&
 232
 233         test "$head" = "$newhead" &&
 234         test_must_fail git update-index --refresh -q &&
 235         test_must_fail git diff-index --exit-code HEAD &&
 236         test_cmp expected-stages actual-stages &&
 237         sed "s/[a-f0-9]*\.\.\./objid/" foo > actual &&
 238         test_cmp expected actual
 239 '
 240
 241 test_expect_success 'revert conflict, diff3 -m style' '
 242         pristine_detach initial &&
 243         git config merge.conflictstyle diff3 &&
 244         cat <<-EOF > expected &&
 245         <<<<<<< HEAD
 246         a
 247         ||||||| objid picked
 248         c
 249         =======
 250         b
 251         >>>>>>> parent of objid picked
 252         EOF
 253
 254         test_must_fail git revert picked &&
 255
 256         sed "s/[a-f0-9]*\.\.\./objid/" foo > actual &&
 257         test_cmp expected actual
 258 '
 259
 260 test_done