t/t6022-merge-rename.sh

   1 #!/bin/sh
   2
   3 test_description='Merge-recursive merging renames'
   4 . ./test-lib.sh
   5
   6 test_expect_success setup \
   7 '
   8 cat >A <<\EOF &&
   9 a aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
  10 b bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
  11 c cccccccccccccccccccccccccccccccccccccccccccccccc
  12 d dddddddddddddddddddddddddddddddddddddddddddddddd
  13 e eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
  14 f ffffffffffffffffffffffffffffffffffffffffffffffff
  15 g gggggggggggggggggggggggggggggggggggggggggggggggg
  16 h hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
  17 i iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
  18 j jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
  19 k kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
  20 l llllllllllllllllllllllllllllllllllllllllllllllll
  21 m mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm
  22 n nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn
  23 o oooooooooooooooooooooooooooooooooooooooooooooooo
  24 EOF
  25
  26 cat >M <<\EOF &&
  27 A AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
  28 B BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB
  29 C CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC
  30 D DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
  31 E EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
  32 F FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
  33 G GGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG
  34 H HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH
  35 I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
  36 J JJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJ
  37 K KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK
  38 L LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL
  39 M MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
  40 N NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
  41 O OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
  42 EOF
  43
  44 git add A M &&
  45 git commit -m "initial has A and M" &&
  46 git branch white &&
  47 git branch red &&
  48 git branch blue &&
  49 git branch yellow &&
  50 git branch change &&
  51 git branch change+rename &&
  52
  53 sed -e "/^g /s/.*/g : master changes a line/" <A >A+ &&
  54 mv A+ A &&
  55 git commit -a -m "master updates A" &&
  56
  57 git checkout yellow &&
  58 rm -f M &&
  59 git commit -a -m "yellow removes M" &&
  60
  61 git checkout white &&
  62 sed -e "/^g /s/.*/g : white changes a line/" <A >B &&
  63 sed -e "/^G /s/.*/G : colored branch changes a line/" <M >N &&
  64 rm -f A M &&
  65 git update-index --add --remove A B M N &&
  66 git commit -m "white renames A->B, M->N" &&
  67
  68 git checkout red &&
  69 sed -e "/^g /s/.*/g : red changes a line/" <A >B &&
  70 sed -e "/^G /s/.*/G : colored branch changes a line/" <M >N &&
  71 rm -f A M &&
  72 git update-index --add --remove A B M N &&
  73 git commit -m "red renames A->B, M->N" &&
  74
  75 git checkout blue &&
  76 sed -e "/^g /s/.*/g : blue changes a line/" <A >C &&
  77 sed -e "/^G /s/.*/G : colored branch changes a line/" <M >N &&
  78 rm -f A M &&
  79 git update-index --add --remove A C M N &&
  80 git commit -m "blue renames A->C, M->N" &&
  81
  82 git checkout change &&
  83 sed -e "/^g /s/.*/g : changed line/" <A >A+ &&
  84 mv A+ A &&
  85 git commit -q -a -m "changed" &&
  86
  87 git checkout change+rename &&
  88 sed -e "/^g /s/.*/g : changed line/" <A >B &&
  89 rm A &&
  90 git update-index --add B &&
  91 git commit -q -a -m "changed and renamed" &&
  92
  93 git checkout master'
  94
  95 test_expect_success 'pull renaming branch into unrenaming one' \
  96 '
  97         git show-branch
  98         git pull . white && {
  99                 echo "BAD: should have conflicted"
 100                 return 1
 101         }
 102         git ls-files -s
 103         test "$(git ls-files -u B | wc -l)" -eq 3 || {
 104                 echo "BAD: should have left stages for B"
 105                 return 1
 106         }
 107         test "$(git ls-files -s N | wc -l)" -eq 1 || {
 108                 echo "BAD: should have merged N"
 109                 return 1
 110         }
 111         sed -ne "/^g/{
 112         p
 113         q
 114         }" B | grep master || {
 115                 echo "BAD: should have listed our change first"
 116                 return 1
 117         }
 118         test "$(git diff white N | wc -l)" -eq 0 || {
 119                 echo "BAD: should have taken colored branch"
 120                 return 1
 121         }
 122 '
 123
 124 test_expect_success 'pull renaming branch into another renaming one' \
 125 '
 126         rm -f B
 127         git reset --hard
 128         git checkout red
 129         git pull . white && {
 130                 echo "BAD: should have conflicted"
 131                 return 1
 132         }
 133         test "$(git ls-files -u B | wc -l)" -eq 3 || {
 134                 echo "BAD: should have left stages"
 135                 return 1
 136         }
 137         test "$(git ls-files -s N | wc -l)" -eq 1 || {
 138                 echo "BAD: should have merged N"
 139                 return 1
 140         }
 141         sed -ne "/^g/{
 142         p
 143         q
 144         }" B | grep red || {
 145                 echo "BAD: should have listed our change first"
 146                 return 1
 147         }
 148         test "$(git diff white N | wc -l)" -eq 0 || {
 149                 echo "BAD: should have taken colored branch"
 150                 return 1
 151         }
 152 '
 153
 154 test_expect_success 'pull unrenaming branch into renaming one' \
 155 '
 156         git reset --hard
 157         git show-branch
 158         git pull . master && {
 159                 echo "BAD: should have conflicted"
 160                 return 1
 161         }
 162         test "$(git ls-files -u B | wc -l)" -eq 3 || {
 163                 echo "BAD: should have left stages"
 164                 return 1
 165         }
 166         test "$(git ls-files -s N | wc -l)" -eq 1 || {
 167                 echo "BAD: should have merged N"
 168                 return 1
 169         }
 170         sed -ne "/^g/{
 171         p
 172         q
 173         }" B | grep red || {
 174                 echo "BAD: should have listed our change first"
 175                 return 1
 176         }
 177         test "$(git diff white N | wc -l)" -eq 0 || {
 178                 echo "BAD: should have taken colored branch"
 179                 return 1
 180         }
 181 '
 182
 183 test_expect_success 'pull conflicting renames' \
 184 '
 185         git reset --hard
 186         git show-branch
 187         git pull . blue && {
 188                 echo "BAD: should have conflicted"
 189                 return 1
 190         }
 191         test "$(git ls-files -u A | wc -l)" -eq 1 || {
 192                 echo "BAD: should have left a stage"
 193                 return 1
 194         }
 195         test "$(git ls-files -u B | wc -l)" -eq 1 || {
 196                 echo "BAD: should have left a stage"
 197                 return 1
 198         }
 199         test "$(git ls-files -u C | wc -l)" -eq 1 || {
 200                 echo "BAD: should have left a stage"
 201                 return 1
 202         }
 203         test "$(git ls-files -s N | wc -l)" -eq 1 || {
 204                 echo "BAD: should have merged N"
 205                 return 1
 206         }
 207         sed -ne "/^g/{
 208         p
 209         q
 210         }" B | grep red || {
 211                 echo "BAD: should have listed our change first"
 212                 return 1
 213         }
 214         test "$(git diff white N | wc -l)" -eq 0 || {
 215                 echo "BAD: should have taken colored branch"
 216                 return 1
 217         }
 218 '
 219
 220 test_expect_success 'interference with untracked working tree file' '
 221
 222         git reset --hard
 223         git show-branch
 224         echo >A this file should not matter
 225         git pull . white && {
 226                 echo "BAD: should have conflicted"
 227                 return 1
 228         }
 229         test -f A || {
 230                 echo "BAD: should have left A intact"
 231                 return 1
 232         }
 233 '
 234
 235 test_expect_success 'interference with untracked working tree file' '
 236
 237         git reset --hard
 238         git checkout white
 239         git show-branch
 240         rm -f A
 241         echo >A this file should not matter
 242         git pull . red && {
 243                 echo "BAD: should have conflicted"
 244                 return 1
 245         }
 246         test -f A || {
 247                 echo "BAD: should have left A intact"
 248                 return 1
 249         }
 250 '
 251
 252 test_expect_success 'interference with untracked working tree file' '
 253
 254         git reset --hard
 255         rm -f A M
 256         git checkout -f master
 257         git tag -f anchor
 258         git show-branch
 259         git pull . yellow || {
 260                 echo "BAD: should have cleanly merged"
 261                 return 1
 262         }
 263         test -f M && {
 264                 echo "BAD: should have removed M"
 265                 return 1
 266         }
 267         git reset --hard anchor
 268 '
 269
 270 test_expect_success 'updated working tree file should prevent the merge' '
 271
 272         git reset --hard
 273         rm -f A M
 274         git checkout -f master
 275         git tag -f anchor
 276         git show-branch
 277         echo >>M one line addition
 278         cat M >M.saved
 279         git pull . yellow && {
 280                 echo "BAD: should have complained"
 281                 return 1
 282         }
 283         diff M M.saved || {
 284                 echo "BAD: should have left M intact"
 285                 return 1
 286         }
 287         rm -f M.saved
 288 '
 289
 290 test_expect_success 'updated working tree file should prevent the merge' '
 291
 292         git reset --hard
 293         rm -f A M
 294         git checkout -f master
 295         git tag -f anchor
 296         git show-branch
 297         echo >>M one line addition
 298         cat M >M.saved
 299         git update-index M
 300         git pull . yellow && {
 301                 echo "BAD: should have complained"
 302                 return 1
 303         }
 304         diff M M.saved || {
 305                 echo "BAD: should have left M intact"
 306                 return 1
 307         }
 308         rm -f M.saved
 309 '
 310
 311 test_expect_success 'interference with untracked working tree file' '
 312
 313         git reset --hard
 314         rm -f A M
 315         git checkout -f yellow
 316         git tag -f anchor
 317         git show-branch
 318         echo >M this file should not matter
 319         git pull . master || {
 320                 echo "BAD: should have cleanly merged"
 321                 return 1
 322         }
 323         test -f M || {
 324                 echo "BAD: should have left M intact"
 325                 return 1
 326         }
 327         git ls-files -s | grep M && {
 328                 echo "BAD: M must be untracked in the result"
 329                 return 1
 330         }
 331         git reset --hard anchor
 332 '
 333
 334 test_expect_success 'merge of identical changes in a renamed file' '
 335         rm -f A M N
 336         git reset --hard &&
 337         git checkout change+rename &&
 338         GIT_MERGE_VERBOSITY=3 git merge change | grep "^Skipped B" &&
 339         git reset --hard HEAD^ &&
 340         git checkout change &&
 341         GIT_MERGE_VERBOSITY=3 git merge change+rename | grep "^Skipped B"
 342 '
 343
 344 test_done