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 pristine_detach () {
  15         git checkout -f "$1^0" &&
  16         git read-tree -u --reset HEAD &&
  17         git clean -d -f -f -q -x
  18 }
  19
  20 test_expect_success setup '
  21
  22         echo unrelated >unrelated &&
  23         git add unrelated &&
  24         test_commit initial foo a &&
  25         test_commit base foo b &&
  26         test_commit picked foo c &&
  27         test_commit --signoff picked-signed foo d &&
  28         git config advice.detachedhead false
  29
  30 '
  31
  32 test_expect_success 'failed cherry-pick does not advance HEAD' '
  33         pristine_detach initial &&
  34
  35         head=$(git rev-parse HEAD) &&
  36         test_must_fail git cherry-pick picked &&
  37         newhead=$(git rev-parse HEAD) &&
  38
  39         test "$head" = "$newhead"
  40 '
  41
  42 test_expect_success 'advice from failed cherry-pick' "
  43         pristine_detach initial &&
  44
  45         picked=\$(git rev-parse --short picked) &&
  46         cat <<-EOF >expected &&
  47         error: could not apply \$picked... picked
  48         hint: after resolving the conflicts, mark the corrected paths
  49         hint: with 'git add <paths>' or 'git rm <paths>'
  50         hint: and commit the result with 'git commit'
  51         EOF
  52         test_must_fail git cherry-pick picked 2>actual &&
  53
  54         test_i18ncmp expected actual
  55 "
  56
  57 test_expect_success 'advice from failed cherry-pick --no-commit' "
  58         pristine_detach initial &&
  59
  60         picked=\$(git rev-parse --short picked) &&
  61         cat <<-EOF >expected &&
  62         error: could not apply \$picked... picked
  63         hint: after resolving the conflicts, mark the corrected paths
  64         hint: with 'git add <paths>' or 'git rm <paths>'
  65         EOF
  66         test_must_fail git cherry-pick --no-commit picked 2>actual &&
  67
  68         test_i18ncmp expected actual
  69 "
  70
  71 test_expect_success 'failed cherry-pick sets CHERRY_PICK_HEAD' '
  72         pristine_detach initial &&
  73         test_must_fail git cherry-pick picked &&
  74         test_cmp_rev picked CHERRY_PICK_HEAD
  75 '
  76
  77 test_expect_success 'successful cherry-pick does not set CHERRY_PICK_HEAD' '
  78         pristine_detach initial &&
  79         git cherry-pick base &&
  80         test_must_fail git rev-parse --verify CHERRY_PICK_HEAD
  81 '
  82
  83 test_expect_success 'cherry-pick --no-commit does not set CHERRY_PICK_HEAD' '
  84         pristine_detach initial &&
  85         git cherry-pick --no-commit base &&
  86         test_must_fail git rev-parse --verify CHERRY_PICK_HEAD
  87 '
  88
  89 test_expect_success 'cherry-pick w/dirty tree does not set CHERRY_PICK_HEAD' '
  90         pristine_detach initial &&
  91         echo foo > foo &&
  92         test_must_fail git cherry-pick base &&
  93         test_must_fail git rev-parse --verify CHERRY_PICK_HEAD
  94 '
  95
  96 test_expect_success \
  97         'cherry-pick --strategy=resolve w/dirty tree does not set CHERRY_PICK_HEAD' '
  98         pristine_detach initial &&
  99         echo foo > foo &&
 100         test_must_fail git cherry-pick --strategy=resolve base &&
 101         test_must_fail git rev-parse --verify CHERRY_PICK_HEAD
 102 '
 103
 104 test_expect_success 'GIT_CHERRY_PICK_HELP suppresses CHERRY_PICK_HEAD' '
 105         pristine_detach initial &&
 106         (
 107                 GIT_CHERRY_PICK_HELP="and then do something else" &&
 108                 export GIT_CHERRY_PICK_HELP &&
 109                 test_must_fail git cherry-pick picked
 110         ) &&
 111         test_must_fail git rev-parse --verify CHERRY_PICK_HEAD
 112 '
 113
 114 test_expect_success 'git reset clears CHERRY_PICK_HEAD' '
 115         pristine_detach initial &&
 116
 117         test_must_fail git cherry-pick picked &&
 118         git reset &&
 119
 120         test_must_fail git rev-parse --verify CHERRY_PICK_HEAD
 121 '
 122
 123 test_expect_success 'failed commit does not clear CHERRY_PICK_HEAD' '
 124         pristine_detach initial &&
 125
 126         test_must_fail git cherry-pick picked &&
 127         test_must_fail git commit &&
 128
 129         test_cmp_rev picked CHERRY_PICK_HEAD
 130 '
 131
 132 test_expect_success 'cancelled commit does not clear CHERRY_PICK_HEAD' '
 133         pristine_detach initial &&
 134
 135         test_must_fail git cherry-pick picked &&
 136         echo resolved >foo &&
 137         git add foo &&
 138         git update-index --refresh -q &&
 139         test_must_fail git diff-index --exit-code HEAD &&
 140         (
 141                 GIT_EDITOR=false &&
 142                 export GIT_EDITOR &&
 143                 test_must_fail git commit
 144         ) &&
 145
 146         test_cmp_rev picked CHERRY_PICK_HEAD
 147 '
 148
 149 test_expect_success 'successful commit clears CHERRY_PICK_HEAD' '
 150         pristine_detach initial &&
 151
 152         test_must_fail git cherry-pick picked &&
 153         echo resolved >foo &&
 154         git add foo &&
 155         git commit &&
 156
 157         test_must_fail git rev-parse --verify CHERRY_PICK_HEAD
 158 '
 159
 160 test_expect_success 'failed cherry-pick produces dirty index' '
 161         pristine_detach initial &&
 162
 163         test_must_fail git cherry-pick picked &&
 164
 165         test_must_fail git update-index --refresh -q &&
 166         test_must_fail git diff-index --exit-code HEAD
 167 '
 168
 169 test_expect_success 'failed cherry-pick registers participants in index' '
 170         pristine_detach initial &&
 171         {
 172                 git checkout base -- foo &&
 173                 git ls-files --stage foo &&
 174                 git checkout initial -- foo &&
 175                 git ls-files --stage foo &&
 176                 git checkout picked -- foo &&
 177                 git ls-files --stage foo
 178         } > stages &&
 179         sed "
 180                 1 s/ 0  / 1     /
 181                 2 s/ 0  / 2     /
 182                 3 s/ 0  / 3     /
 183         " < stages > expected &&
 184         git read-tree -u --reset HEAD &&
 185
 186         test_must_fail git cherry-pick picked &&
 187         git ls-files --stage --unmerged > actual &&
 188
 189         test_cmp expected actual
 190 '
 191
 192 test_expect_success 'failed cherry-pick describes conflict in work tree' '
 193         pristine_detach initial &&
 194         cat <<-EOF > expected &&
 195         <<<<<<< HEAD
 196         a
 197         =======
 198         c
 199         >>>>>>> objid picked
 200         EOF
 201
 202         test_must_fail git cherry-pick picked &&
 203
 204         sed "s/[a-f0-9]*\.\.\./objid/" foo > actual &&
 205         test_cmp expected actual
 206 '
 207
 208 test_expect_success 'diff3 -m style' '
 209         pristine_detach initial &&
 210         git config merge.conflictstyle diff3 &&
 211         cat <<-EOF > expected &&
 212         <<<<<<< HEAD
 213         a
 214         ||||||| parent of objid picked
 215         b
 216         =======
 217         c
 218         >>>>>>> objid picked
 219         EOF
 220
 221         test_must_fail git cherry-pick picked &&
 222
 223         sed "s/[a-f0-9]*\.\.\./objid/" foo > actual &&
 224         test_cmp expected actual
 225 '
 226
 227 test_expect_success 'revert also handles conflicts sanely' '
 228         git config --unset merge.conflictstyle &&
 229         pristine_detach initial &&
 230         cat <<-EOF > expected &&
 231         <<<<<<< HEAD
 232         a
 233         =======
 234         b
 235         >>>>>>> parent of objid picked
 236         EOF
 237         {
 238                 git checkout picked -- foo &&
 239                 git ls-files --stage foo &&
 240                 git checkout initial -- foo &&
 241                 git ls-files --stage foo &&
 242                 git checkout base -- foo &&
 243                 git ls-files --stage foo
 244         } > stages &&
 245         sed "
 246                 1 s/ 0  / 1     /
 247                 2 s/ 0  / 2     /
 248                 3 s/ 0  / 3     /
 249         " < stages > expected-stages &&
 250         git read-tree -u --reset HEAD &&
 251
 252         head=$(git rev-parse HEAD) &&
 253         test_must_fail git revert picked &&
 254         newhead=$(git rev-parse HEAD) &&
 255         git ls-files --stage --unmerged > actual-stages &&
 256
 257         test "$head" = "$newhead" &&
 258         test_must_fail git update-index --refresh -q &&
 259         test_must_fail git diff-index --exit-code HEAD &&
 260         test_cmp expected-stages actual-stages &&
 261         sed "s/[a-f0-9]*\.\.\./objid/" foo > actual &&
 262         test_cmp expected actual
 263 '
 264
 265 test_expect_success 'failed revert sets REVERT_HEAD' '
 266         pristine_detach initial &&
 267         test_must_fail git revert picked &&
 268         test_cmp_rev picked REVERT_HEAD
 269 '
 270
 271 test_expect_success 'successful revert does not set REVERT_HEAD' '
 272         pristine_detach base &&
 273         git revert base &&
 274         test_must_fail git rev-parse --verify CHERRY_PICK_HEAD &&
 275         test_must_fail git rev-parse --verify REVERT_HEAD
 276 '
 277
 278 test_expect_success 'revert --no-commit sets REVERT_HEAD' '
 279         pristine_detach base &&
 280         git revert --no-commit base &&
 281         test_must_fail git rev-parse --verify CHERRY_PICK_HEAD &&
 282         test_cmp_rev base REVERT_HEAD
 283 '
 284
 285 test_expect_success 'revert w/dirty tree does not set REVERT_HEAD' '
 286         pristine_detach base &&
 287         echo foo > foo &&
 288         test_must_fail git revert base &&
 289         test_must_fail git rev-parse --verify CHERRY_PICK_HEAD &&
 290         test_must_fail git rev-parse --verify REVERT_HEAD
 291 '
 292
 293 test_expect_success 'GIT_CHERRY_PICK_HELP does not suppress REVERT_HEAD' '
 294         pristine_detach initial &&
 295         (
 296                 GIT_CHERRY_PICK_HELP="and then do something else" &&
 297                 GIT_REVERT_HELP="and then do something else, again" &&
 298                 export GIT_CHERRY_PICK_HELP GIT_REVERT_HELP &&
 299                 test_must_fail git revert picked
 300         ) &&
 301         test_must_fail git rev-parse --verify CHERRY_PICK_HEAD &&
 302         test_cmp_rev picked REVERT_HEAD
 303 '
 304
 305 test_expect_success 'git reset clears REVERT_HEAD' '
 306         pristine_detach initial &&
 307         test_must_fail git revert picked &&
 308         git reset &&
 309         test_must_fail git rev-parse --verify REVERT_HEAD
 310 '
 311
 312 test_expect_success 'failed commit does not clear REVERT_HEAD' '
 313         pristine_detach initial &&
 314         test_must_fail git revert picked &&
 315         test_must_fail git commit &&
 316         test_cmp_rev picked REVERT_HEAD
 317 '
 318
 319 test_expect_success 'revert conflict, diff3 -m style' '
 320         pristine_detach initial &&
 321         git config merge.conflictstyle diff3 &&
 322         cat <<-EOF > expected &&
 323         <<<<<<< HEAD
 324         a
 325         ||||||| objid picked
 326         c
 327         =======
 328         b
 329         >>>>>>> parent of objid picked
 330         EOF
 331
 332         test_must_fail git revert picked &&
 333
 334         sed "s/[a-f0-9]*\.\.\./objid/" foo > actual &&
 335         test_cmp expected actual
 336 '
 337
 338 test_expect_success 'failed cherry-pick does not forget -s' '
 339         pristine_detach initial &&
 340         test_must_fail git cherry-pick -s picked &&
 341         test_i18ngrep -e "Signed-off-by" .git/MERGE_MSG
 342 '
 343
 344 test_expect_success 'commit after failed cherry-pick does not add duplicated -s' '
 345         pristine_detach initial &&
 346         test_must_fail git cherry-pick -s picked-signed &&
 347         git commit -a -s &&
 348         test $(git show -s |grep -c "Signed-off-by") = 1
 349 '
 350
 351 test_expect_success 'commit after failed cherry-pick adds -s at the right place' '
 352         pristine_detach initial &&
 353         test_must_fail git cherry-pick picked &&
 354
 355         git commit -a -s &&
 356
 357         # Do S-o-b and Conflicts appear in the right order?
 358         cat <<-\EOF >expect &&
 359         Signed-off-by: C O Mitter <committer@example.com>
 360         # Conflicts:
 361         EOF
 362         grep -e "^# Conflicts:" -e '^Signed-off-by' <.git/COMMIT_EDITMSG >actual &&
 363         test_cmp expect actual &&
 364
 365         cat <<-\EOF >expected &&
 366         picked
 367
 368         Signed-off-by: C O Mitter <committer@example.com>
 369         EOF
 370
 371         git show -s --pretty=format:%B >actual &&
 372         test_cmp expected actual
 373 '
 374
 375 test_expect_success 'commit --amend -s places the sign-off at the right place' '
 376         pristine_detach initial &&
 377         test_must_fail git cherry-pick picked &&
 378
 379         # emulate old-style conflicts block
 380         mv .git/MERGE_MSG .git/MERGE_MSG+ &&
 381         sed -e "/^# Conflicts:/,\$s/^# *//" <.git/MERGE_MSG+ >.git/MERGE_MSG &&
 382
 383         git commit -a &&
 384         git commit --amend -s &&
 385
 386         # Do S-o-b and Conflicts appear in the right order?
 387         cat <<-\EOF >expect &&
 388         Signed-off-by: C O Mitter <committer@example.com>
 389         Conflicts:
 390         EOF
 391         grep -e "^Conflicts:" -e '^Signed-off-by' <.git/COMMIT_EDITMSG >actual &&
 392         test_cmp expect actual
 393 '
 394
 395 test_done