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_i18ncmp 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 'cherry-pick w/dirty tree does not set CHERRY_PICK_HEAD' '
  81         pristine_detach initial &&
  82         echo foo > foo &&
  83         test_must_fail git cherry-pick base &&
  84         test_must_fail git rev-parse --verify CHERRY_PICK_HEAD
  85 '
  86
  87 test_expect_success \
  88         'cherry-pick --strategy=resolve w/dirty tree does not set CHERRY_PICK_HEAD' '
  89         pristine_detach initial &&
  90         echo foo > foo &&
  91         test_must_fail git cherry-pick --strategy=resolve base &&
  92         test_must_fail git rev-parse --verify CHERRY_PICK_HEAD
  93 '
  94
  95 test_expect_success 'GIT_CHERRY_PICK_HELP suppresses CHERRY_PICK_HEAD' '
  96         pristine_detach initial &&
  97         (
  98                 GIT_CHERRY_PICK_HELP="and then do something else" &&
  99                 export GIT_CHERRY_PICK_HELP &&
 100                 test_must_fail git cherry-pick picked
 101         ) &&
 102         test_must_fail git rev-parse --verify CHERRY_PICK_HEAD
 103 '
 104
 105 test_expect_success 'git reset clears CHERRY_PICK_HEAD' '
 106         pristine_detach initial &&
 107
 108         test_must_fail git cherry-pick picked &&
 109         git reset &&
 110
 111         test_must_fail git rev-parse --verify CHERRY_PICK_HEAD
 112 '
 113
 114 test_expect_success 'failed commit does not clear CHERRY_PICK_HEAD' '
 115         pristine_detach initial &&
 116
 117         test_must_fail git cherry-pick picked &&
 118         test_must_fail git commit &&
 119
 120         test_cmp_rev picked CHERRY_PICK_HEAD
 121 '
 122
 123 test_expect_success 'cancelled commit does not clear CHERRY_PICK_HEAD' '
 124         pristine_detach initial &&
 125
 126         test_must_fail git cherry-pick picked &&
 127         echo resolved >foo &&
 128         git add foo &&
 129         git update-index --refresh -q &&
 130         test_must_fail git diff-index --exit-code HEAD &&
 131         (
 132                 GIT_EDITOR=false &&
 133                 export GIT_EDITOR &&
 134                 test_must_fail git commit
 135         ) &&
 136
 137         test_cmp_rev picked CHERRY_PICK_HEAD
 138 '
 139
 140 test_expect_success 'successful commit clears CHERRY_PICK_HEAD' '
 141         pristine_detach initial &&
 142
 143         test_must_fail git cherry-pick picked &&
 144         echo resolved >foo &&
 145         git add foo &&
 146         git commit &&
 147
 148         test_must_fail git rev-parse --verify CHERRY_PICK_HEAD
 149 '
 150
 151 test_expect_success 'failed cherry-pick produces dirty index' '
 152         pristine_detach initial &&
 153
 154         test_must_fail git cherry-pick picked &&
 155
 156         test_must_fail git update-index --refresh -q &&
 157         test_must_fail git diff-index --exit-code HEAD
 158 '
 159
 160 test_expect_success 'failed cherry-pick registers participants in index' '
 161         pristine_detach initial &&
 162         {
 163                 git checkout base -- foo &&
 164                 git ls-files --stage foo &&
 165                 git checkout initial -- foo &&
 166                 git ls-files --stage foo &&
 167                 git checkout picked -- foo &&
 168                 git ls-files --stage foo
 169         } > stages &&
 170         sed "
 171                 1 s/ 0  / 1     /
 172                 2 s/ 0  / 2     /
 173                 3 s/ 0  / 3     /
 174         " < stages > expected &&
 175         git read-tree -u --reset HEAD &&
 176
 177         test_must_fail git cherry-pick picked &&
 178         git ls-files --stage --unmerged > actual &&
 179
 180         test_cmp expected actual
 181 '
 182
 183 test_expect_success 'failed cherry-pick describes conflict in work tree' '
 184         pristine_detach initial &&
 185         cat <<-EOF > expected &&
 186         <<<<<<< HEAD
 187         a
 188         =======
 189         c
 190         >>>>>>> objid picked
 191         EOF
 192
 193         test_must_fail git cherry-pick picked &&
 194
 195         sed "s/[a-f0-9]*\.\.\./objid/" foo > actual &&
 196         test_cmp expected actual
 197 '
 198
 199 test_expect_success 'diff3 -m style' '
 200         pristine_detach initial &&
 201         git config merge.conflictstyle diff3 &&
 202         cat <<-EOF > expected &&
 203         <<<<<<< HEAD
 204         a
 205         ||||||| parent of objid picked
 206         b
 207         =======
 208         c
 209         >>>>>>> objid picked
 210         EOF
 211
 212         test_must_fail git cherry-pick picked &&
 213
 214         sed "s/[a-f0-9]*\.\.\./objid/" foo > actual &&
 215         test_cmp expected actual
 216 '
 217
 218 test_expect_success 'revert also handles conflicts sanely' '
 219         git config --unset merge.conflictstyle &&
 220         pristine_detach initial &&
 221         cat <<-EOF > expected &&
 222         <<<<<<< HEAD
 223         a
 224         =======
 225         b
 226         >>>>>>> parent of objid picked
 227         EOF
 228         {
 229                 git checkout picked -- foo &&
 230                 git ls-files --stage foo &&
 231                 git checkout initial -- foo &&
 232                 git ls-files --stage foo &&
 233                 git checkout base -- foo &&
 234                 git ls-files --stage foo
 235         } > stages &&
 236         sed "
 237                 1 s/ 0  / 1     /
 238                 2 s/ 0  / 2     /
 239                 3 s/ 0  / 3     /
 240         " < stages > expected-stages &&
 241         git read-tree -u --reset HEAD &&
 242
 243         head=$(git rev-parse HEAD) &&
 244         test_must_fail git revert picked &&
 245         newhead=$(git rev-parse HEAD) &&
 246         git ls-files --stage --unmerged > actual-stages &&
 247
 248         test "$head" = "$newhead" &&
 249         test_must_fail git update-index --refresh -q &&
 250         test_must_fail git diff-index --exit-code HEAD &&
 251         test_cmp expected-stages actual-stages &&
 252         sed "s/[a-f0-9]*\.\.\./objid/" foo > actual &&
 253         test_cmp expected actual
 254 '
 255
 256 test_expect_success 'failed revert sets REVERT_HEAD' '
 257         pristine_detach initial &&
 258         test_must_fail git revert picked &&
 259         test_cmp_rev picked REVERT_HEAD
 260 '
 261
 262 test_expect_success 'successful revert does not set REVERT_HEAD' '
 263         pristine_detach base &&
 264         git revert base &&
 265         test_must_fail git rev-parse --verify CHERRY_PICK_HEAD &&
 266         test_must_fail git rev-parse --verify REVERT_HEAD
 267 '
 268
 269 test_expect_success 'revert --no-commit sets REVERT_HEAD' '
 270         pristine_detach base &&
 271         git revert --no-commit base &&
 272         test_must_fail git rev-parse --verify CHERRY_PICK_HEAD &&
 273         test_cmp_rev base REVERT_HEAD
 274 '
 275
 276 test_expect_success 'revert w/dirty tree does not set REVERT_HEAD' '
 277         pristine_detach base &&
 278         echo foo > foo &&
 279         test_must_fail git revert base &&
 280         test_must_fail git rev-parse --verify CHERRY_PICK_HEAD &&
 281         test_must_fail git rev-parse --verify REVERT_HEAD
 282 '
 283
 284 test_expect_success 'GIT_CHERRY_PICK_HELP does not suppress REVERT_HEAD' '
 285         pristine_detach initial &&
 286         (
 287                 GIT_CHERRY_PICK_HELP="and then do something else" &&
 288                 GIT_REVERT_HELP="and then do something else, again" &&
 289                 export GIT_CHERRY_PICK_HELP GIT_REVERT_HELP &&
 290                 test_must_fail git revert picked
 291         ) &&
 292         test_must_fail git rev-parse --verify CHERRY_PICK_HEAD &&
 293         test_cmp_rev picked REVERT_HEAD
 294 '
 295
 296 test_expect_success 'git reset clears REVERT_HEAD' '
 297         pristine_detach initial &&
 298         test_must_fail git revert picked &&
 299         git reset &&
 300         test_must_fail git rev-parse --verify REVERT_HEAD
 301 '
 302
 303 test_expect_success 'failed commit does not clear REVERT_HEAD' '
 304         pristine_detach initial &&
 305         test_must_fail git revert picked &&
 306         test_must_fail git commit &&
 307         test_cmp_rev picked REVERT_HEAD
 308 '
 309
 310 test_expect_success 'revert conflict, diff3 -m style' '
 311         pristine_detach initial &&
 312         git config merge.conflictstyle diff3 &&
 313         cat <<-EOF > expected &&
 314         <<<<<<< HEAD
 315         a
 316         ||||||| objid picked
 317         c
 318         =======
 319         b
 320         >>>>>>> parent of objid picked
 321         EOF
 322
 323         test_must_fail git revert picked &&
 324
 325         sed "s/[a-f0-9]*\.\.\./objid/" foo > actual &&
 326         test_cmp expected actual
 327 '
 328
 329 test_done