t/t3308-notes-merge.sh

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2010 Johan Herland
   4 #
   5
   6 test_description='Test merging of notes trees'
   7
   8 . ./test-lib.sh
   9
  10 test_expect_success setup '
  11         test_commit 1st &&
  12         test_commit 2nd &&
  13         test_commit 3rd &&
  14         test_commit 4th &&
  15         test_commit 5th &&
  16         # Create notes on 4 first commits
  17         git config core.notesRef refs/notes/x &&
  18         git notes add -m "Notes on 1st commit" 1st &&
  19         git notes add -m "Notes on 2nd commit" 2nd &&
  20         git notes add -m "Notes on 3rd commit" 3rd &&
  21         git notes add -m "Notes on 4th commit" 4th &&
  22         # Copy notes to remote-notes
  23         git fetch . refs/notes/*:refs/remote-notes/origin/*
  24 '
  25
  26 commit_sha1=$(git rev-parse 1st^{commit})
  27 commit_sha2=$(git rev-parse 2nd^{commit})
  28 commit_sha3=$(git rev-parse 3rd^{commit})
  29 commit_sha4=$(git rev-parse 4th^{commit})
  30 commit_sha5=$(git rev-parse 5th^{commit})
  31
  32 verify_notes () {
  33         notes_ref="$1"
  34         git -c core.notesRef="refs/notes/$notes_ref" notes |
  35                 sort >"output_notes_$notes_ref" &&
  36         test_cmp "expect_notes_$notes_ref" "output_notes_$notes_ref" &&
  37         git -c core.notesRef="refs/notes/$notes_ref" log --format="%H %s%n%N" \
  38                 >"output_log_$notes_ref" &&
  39         test_cmp "expect_log_$notes_ref" "output_log_$notes_ref"
  40 }
  41
  42 cat <<EOF | sort >expect_notes_x
  43 5e93d24084d32e1cb61f7070505b9d2530cca987 $commit_sha4
  44 8366731eeee53787d2bdf8fc1eff7d94757e8da0 $commit_sha3
  45 eede89064cd42441590d6afec6c37b321ada3389 $commit_sha2
  46 daa55ffad6cb99bf64226532147ffcaf5ce8bdd1 $commit_sha1
  47 EOF
  48
  49 cat >expect_log_x <<EOF
  50 $commit_sha5 5th
  51
  52 $commit_sha4 4th
  53 Notes on 4th commit
  54
  55 $commit_sha3 3rd
  56 Notes on 3rd commit
  57
  58 $commit_sha2 2nd
  59 Notes on 2nd commit
  60
  61 $commit_sha1 1st
  62 Notes on 1st commit
  63
  64 EOF
  65
  66 test_expect_success 'verify initial notes (x)' '
  67         verify_notes x
  68 '
  69
  70 cp expect_notes_x expect_notes_y
  71 cp expect_notes_x expect_notes_v
  72 cp expect_log_x expect_log_y
  73 cp expect_log_x expect_log_v
  74
  75 test_expect_success 'fail to merge empty notes ref into empty notes ref (z => y)' '
  76         test_must_fail git -c "core.notesRef=refs/notes/y" notes merge z
  77 '
  78
  79 test_expect_success 'fail to merge into various non-notes refs' '
  80         test_must_fail git -c "core.notesRef=refs/notes" notes merge x &&
  81         test_must_fail git -c "core.notesRef=refs/notes/" notes merge x &&
  82         git update-ref refs/notes/dir/foo HEAD &&
  83         test_must_fail git -c "core.notesRef=refs/notes/dir" notes merge x &&
  84         test_must_fail git -c "core.notesRef=refs/notes/dir/" notes merge x &&
  85         test_must_fail git -c "core.notesRef=refs/heads/master" notes merge x &&
  86         test_must_fail git -c "core.notesRef=refs/notes/y:" notes merge x &&
  87         test_must_fail git -c "core.notesRef=refs/notes/y:foo" notes merge x &&
  88         test_must_fail git -c "core.notesRef=refs/notes/foo^{bar" notes merge x
  89 '
  90
  91 test_expect_success 'merge non-notes ref into empty notes ref (remote-notes/origin/x => v)' '
  92         git config core.notesRef refs/notes/v &&
  93         git notes merge refs/remote-notes/origin/x &&
  94         verify_notes v &&
  95         # refs/remote-notes/origin/x and v should point to the same notes commit
  96         test "$(git rev-parse refs/remote-notes/origin/x)" = "$(git rev-parse refs/notes/v)"
  97 '
  98
  99 test_expect_success 'merge notes into empty notes ref (x => y)' '
 100         git config core.notesRef refs/notes/y &&
 101         git notes merge x &&
 102         verify_notes y &&
 103         # x and y should point to the same notes commit
 104         test "$(git rev-parse refs/notes/x)" = "$(git rev-parse refs/notes/y)"
 105 '
 106
 107 test_expect_success 'merge empty notes ref (z => y)' '
 108         git notes merge z &&
 109         # y should not change (still == x)
 110         test "$(git rev-parse refs/notes/x)" = "$(git rev-parse refs/notes/y)"
 111 '
 112
 113 test_expect_success 'change notes on other notes ref (y)' '
 114         # Not touching notes to 1st commit
 115         git notes remove 2nd &&
 116         git notes append -m "More notes on 3rd commit" 3rd &&
 117         git notes add -f -m "New notes on 4th commit" 4th &&
 118         git notes add -m "Notes on 5th commit" 5th
 119 '
 120
 121 test_expect_success 'merge previous notes commit (y^ => y) => No-op' '
 122         pre_state="$(git rev-parse refs/notes/y)" &&
 123         git notes merge y^ &&
 124         # y should not move
 125         test "$pre_state" = "$(git rev-parse refs/notes/y)"
 126 '
 127
 128 cat <<EOF | sort >expect_notes_y
 129 0f2efbd00262f2fd41dfae33df8765618eeacd99 $commit_sha5
 130 dec2502dac3ea161543f71930044deff93fa945c $commit_sha4
 131 4069cdb399fd45463ec6eef8e051a16a03592d91 $commit_sha3
 132 daa55ffad6cb99bf64226532147ffcaf5ce8bdd1 $commit_sha1
 133 EOF
 134
 135 cat >expect_log_y <<EOF
 136 $commit_sha5 5th
 137 Notes on 5th commit
 138
 139 $commit_sha4 4th
 140 New notes on 4th commit
 141
 142 $commit_sha3 3rd
 143 Notes on 3rd commit
 144
 145 More notes on 3rd commit
 146
 147 $commit_sha2 2nd
 148
 149 $commit_sha1 1st
 150 Notes on 1st commit
 151
 152 EOF
 153
 154 test_expect_success 'verify changed notes on other notes ref (y)' '
 155         verify_notes y
 156 '
 157
 158 test_expect_success 'verify unchanged notes on original notes ref (x)' '
 159         verify_notes x
 160 '
 161
 162 test_expect_success 'merge original notes (x) into changed notes (y) => No-op' '
 163         git notes merge -vvv x &&
 164         verify_notes y &&
 165         verify_notes x
 166 '
 167
 168 cp expect_notes_y expect_notes_x
 169 cp expect_log_y expect_log_x
 170
 171 test_expect_success 'merge changed (y) into original (x) => Fast-forward' '
 172         git config core.notesRef refs/notes/x &&
 173         git notes merge y &&
 174         verify_notes x &&
 175         verify_notes y &&
 176         # x and y should point to same the notes commit
 177         test "$(git rev-parse refs/notes/x)" = "$(git rev-parse refs/notes/y)"
 178 '
 179
 180 test_expect_success 'merge empty notes ref (z => y)' '
 181         # Prepare empty (but valid) notes ref (z)
 182         git config core.notesRef refs/notes/z &&
 183         git notes add -m "foo" &&
 184         git notes remove &&
 185         git notes >output_notes_z &&
 186         test_cmp /dev/null output_notes_z &&
 187         # Do the merge (z => y)
 188         git config core.notesRef refs/notes/y &&
 189         git notes merge z &&
 190         verify_notes y &&
 191         # y should no longer point to the same notes commit as x
 192         test "$(git rev-parse refs/notes/x)" != "$(git rev-parse refs/notes/y)"
 193 '
 194
 195 cat <<EOF | sort >expect_notes_y
 196 0f2efbd00262f2fd41dfae33df8765618eeacd99 $commit_sha5
 197 dec2502dac3ea161543f71930044deff93fa945c $commit_sha4
 198 4069cdb399fd45463ec6eef8e051a16a03592d91 $commit_sha3
 199 d000d30e6ddcfce3a8122c403226a2ce2fd04d9d $commit_sha2
 200 43add6bd0c8c0bc871ac7991e0f5573cfba27804 $commit_sha1
 201 EOF
 202
 203 cat >expect_log_y <<EOF
 204 $commit_sha5 5th
 205 Notes on 5th commit
 206
 207 $commit_sha4 4th
 208 New notes on 4th commit
 209
 210 $commit_sha3 3rd
 211 Notes on 3rd commit
 212
 213 More notes on 3rd commit
 214
 215 $commit_sha2 2nd
 216 New notes on 2nd commit
 217
 218 $commit_sha1 1st
 219 Notes on 1st commit
 220
 221 More notes on 1st commit
 222
 223 EOF
 224
 225 test_expect_success 'change notes on other notes ref (y)' '
 226         # Append to 1st commit notes
 227         git notes append -m "More notes on 1st commit" 1st &&
 228         # Add new notes to 2nd commit
 229         git notes add -m "New notes on 2nd commit" 2nd &&
 230         verify_notes y
 231 '
 232
 233 cat <<EOF | sort >expect_notes_x
 234 0f2efbd00262f2fd41dfae33df8765618eeacd99 $commit_sha5
 235 1f257a3a90328557c452f0817d6cc50c89d315d4 $commit_sha4
 236 daa55ffad6cb99bf64226532147ffcaf5ce8bdd1 $commit_sha1
 237 EOF
 238
 239 cat >expect_log_x <<EOF
 240 $commit_sha5 5th
 241 Notes on 5th commit
 242
 243 $commit_sha4 4th
 244 New notes on 4th commit
 245
 246 More notes on 4th commit
 247
 248 $commit_sha3 3rd
 249
 250 $commit_sha2 2nd
 251
 252 $commit_sha1 1st
 253 Notes on 1st commit
 254
 255 EOF
 256
 257 test_expect_success 'change notes on notes ref (x)' '
 258         git config core.notesRef refs/notes/x &&
 259         git notes remove 3rd &&
 260         git notes append -m "More notes on 4th commit" 4th &&
 261         verify_notes x
 262 '
 263
 264 cat <<EOF | sort >expect_notes_x
 265 0f2efbd00262f2fd41dfae33df8765618eeacd99 $commit_sha5
 266 1f257a3a90328557c452f0817d6cc50c89d315d4 $commit_sha4
 267 d000d30e6ddcfce3a8122c403226a2ce2fd04d9d $commit_sha2
 268 43add6bd0c8c0bc871ac7991e0f5573cfba27804 $commit_sha1
 269 EOF
 270
 271 cat >expect_log_x <<EOF
 272 $commit_sha5 5th
 273 Notes on 5th commit
 274
 275 $commit_sha4 4th
 276 New notes on 4th commit
 277
 278 More notes on 4th commit
 279
 280 $commit_sha3 3rd
 281
 282 $commit_sha2 2nd
 283 New notes on 2nd commit
 284
 285 $commit_sha1 1st
 286 Notes on 1st commit
 287
 288 More notes on 1st commit
 289
 290 EOF
 291
 292 test_expect_success 'merge y into x => Non-conflicting 3-way merge' '
 293         git notes merge y &&
 294         verify_notes x &&
 295         verify_notes y
 296 '
 297
 298 cat <<EOF | sort >expect_notes_w
 299 05a4927951bcef347f51486575b878b2b60137f2 $commit_sha3
 300 d000d30e6ddcfce3a8122c403226a2ce2fd04d9d $commit_sha2
 301 EOF
 302
 303 cat >expect_log_w <<EOF
 304 $commit_sha5 5th
 305
 306 $commit_sha4 4th
 307
 308 $commit_sha3 3rd
 309 New notes on 3rd commit
 310
 311 $commit_sha2 2nd
 312 New notes on 2nd commit
 313
 314 $commit_sha1 1st
 315
 316 EOF
 317
 318 test_expect_success 'create notes on new, separate notes ref (w)' '
 319         git config core.notesRef refs/notes/w &&
 320         # Add same note as refs/notes/y on 2nd commit
 321         git notes add -m "New notes on 2nd commit" 2nd &&
 322         # Add new note on 3rd commit (non-conflicting)
 323         git notes add -m "New notes on 3rd commit" 3rd &&
 324         # Verify state of notes on new, separate notes ref (w)
 325         verify_notes w
 326 '
 327
 328 cat <<EOF | sort >expect_notes_x
 329 0f2efbd00262f2fd41dfae33df8765618eeacd99 $commit_sha5
 330 1f257a3a90328557c452f0817d6cc50c89d315d4 $commit_sha4
 331 05a4927951bcef347f51486575b878b2b60137f2 $commit_sha3
 332 d000d30e6ddcfce3a8122c403226a2ce2fd04d9d $commit_sha2
 333 43add6bd0c8c0bc871ac7991e0f5573cfba27804 $commit_sha1
 334 EOF
 335
 336 cat >expect_log_x <<EOF
 337 $commit_sha5 5th
 338 Notes on 5th commit
 339
 340 $commit_sha4 4th
 341 New notes on 4th commit
 342
 343 More notes on 4th commit
 344
 345 $commit_sha3 3rd
 346 New notes on 3rd commit
 347
 348 $commit_sha2 2nd
 349 New notes on 2nd commit
 350
 351 $commit_sha1 1st
 352 Notes on 1st commit
 353
 354 More notes on 1st commit
 355
 356 EOF
 357
 358 test_expect_success 'merge w into x => Non-conflicting history-less merge' '
 359         git config core.notesRef refs/notes/x &&
 360         git notes merge w &&
 361         # Verify new state of notes on other notes ref (x)
 362         verify_notes x &&
 363         # Also verify that nothing changed on other notes refs (y and w)
 364         verify_notes y &&
 365         verify_notes w
 366 '
 367
 368 test_done