t/t1400-update-ref.sh

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2006 Shawn Pearce
   4 #
   5
   6 test_description='Test git update-ref and basic ref logging'
   7 . ./test-lib.sh
   8
   9 Z=$ZERO_OID
  10
  11 m=refs/heads/main
  12 n_dir=refs/heads/gu
  13 n=$n_dir/fixes
  14 outside=refs/foo
  15 bare=bare-repo
  16
  17 create_test_commits ()
  18 {
  19         prfx="$1"
  20         for name in A B C D E F
  21         do
  22                 test_tick &&
  23                 T=$(git write-tree) &&
  24                 sha1=$(echo $name | git commit-tree $T) &&
  25                 eval $prfx$name=$sha1
  26         done
  27 }
  28
  29 test_expect_success setup '
  30         git checkout --orphan main &&
  31         create_test_commits "" &&
  32         mkdir $bare &&
  33         cd $bare &&
  34         git init --bare -b main &&
  35         create_test_commits "bare" &&
  36         cd -
  37 '
  38
  39 test_expect_success "create $m" '
  40         git update-ref $m $A &&
  41         test $A = $(git show-ref -s --verify $m)
  42 '
  43 test_expect_success "create $m with oldvalue verification" '
  44         git update-ref $m $B $A &&
  45         test $B = $(git show-ref -s --verify $m)
  46 '
  47 test_expect_success "fail to delete $m with stale ref" '
  48         test_must_fail git update-ref -d $m $A &&
  49         test $B = "$(git show-ref -s --verify $m)"
  50 '
  51 test_expect_success "delete $m" '
  52         test_when_finished "git update-ref -d $m" &&
  53         git update-ref -d $m $B &&
  54         test_must_fail git show-ref --verify -q $m
  55 '
  56
  57 test_expect_success "delete $m without oldvalue verification" '
  58         test_when_finished "git update-ref -d $m" &&
  59         git update-ref $m $A &&
  60         test $A = $(git show-ref -s --verify $m) &&
  61         git update-ref -d $m &&
  62         test_must_fail git show-ref --verify -q $m
  63 '
  64
  65 test_expect_success "fail to create $n" '
  66         test_when_finished "rm -f .git/$n_dir" &&
  67         touch .git/$n_dir &&
  68         test_must_fail git update-ref $n $A
  69 '
  70
  71 test_expect_success "create $m (by HEAD)" '
  72         git update-ref HEAD $A &&
  73         test $A = $(git show-ref -s --verify $m)
  74 '
  75 test_expect_success "create $m (by HEAD) with oldvalue verification" '
  76         git update-ref HEAD $B $A &&
  77         test $B = $(git show-ref -s --verify $m)
  78 '
  79 test_expect_success "fail to delete $m (by HEAD) with stale ref" '
  80         test_must_fail git update-ref -d HEAD $A &&
  81         test $B = $(git show-ref -s --verify $m)
  82 '
  83 test_expect_success "delete $m (by HEAD)" '
  84         test_when_finished "git update-ref -d $m" &&
  85         git update-ref -d HEAD $B &&
  86         test_must_fail git show-ref --verify -q $m
  87 '
  88
  89 test_expect_success "deleting current branch adds message to HEAD's log" '
  90         test_when_finished "git update-ref -d $m" &&
  91         git update-ref $m $A &&
  92         git symbolic-ref HEAD $m &&
  93         git update-ref -m delete-$m -d $m &&
  94         test_must_fail git show-ref --verify -q $m &&
  95         grep "delete-$m$" .git/logs/HEAD
  96 '
  97
  98 test_expect_success "deleting by HEAD adds message to HEAD's log" '
  99         test_when_finished "git update-ref -d $m" &&
 100         git update-ref $m $A &&
 101         git symbolic-ref HEAD $m &&
 102         git update-ref -m delete-by-head -d HEAD &&
 103         test_must_fail git show-ref --verify -q $m &&
 104         grep "delete-by-head$" .git/logs/HEAD
 105 '
 106
 107 test_expect_success 'update-ref does not create reflogs by default' '
 108         test_when_finished "git update-ref -d $outside" &&
 109         git update-ref $outside $A &&
 110         git rev-parse $A >expect &&
 111         git rev-parse $outside >actual &&
 112         test_cmp expect actual &&
 113         test_must_fail git reflog exists $outside
 114 '
 115
 116 test_expect_success 'update-ref creates reflogs with --create-reflog' '
 117         test_when_finished "git update-ref -d $outside" &&
 118         git update-ref --create-reflog $outside $A &&
 119         git rev-parse $A >expect &&
 120         git rev-parse $outside >actual &&
 121         test_cmp expect actual &&
 122         git reflog exists $outside
 123 '
 124
 125 test_expect_success 'creates no reflog in bare repository' '
 126         git -C $bare update-ref $m $bareA &&
 127         git -C $bare rev-parse $bareA >expect &&
 128         git -C $bare rev-parse $m >actual &&
 129         test_cmp expect actual &&
 130         test_must_fail git -C $bare reflog exists $m
 131 '
 132
 133 test_expect_success 'core.logAllRefUpdates=true creates reflog in bare repository' '
 134         test_when_finished "git -C $bare config --unset core.logAllRefUpdates && \
 135                 rm $bare/logs/$m" &&
 136         git -C $bare config core.logAllRefUpdates true &&
 137         git -C $bare update-ref $m $bareB &&
 138         git -C $bare rev-parse $bareB >expect &&
 139         git -C $bare rev-parse $m >actual &&
 140         test_cmp expect actual &&
 141         git -C $bare reflog exists $m
 142 '
 143
 144 test_expect_success 'core.logAllRefUpdates=true does not create reflog by default' '
 145         test_config core.logAllRefUpdates true &&
 146         test_when_finished "git update-ref -d $outside" &&
 147         git update-ref $outside $A &&
 148         git rev-parse $A >expect &&
 149         git rev-parse $outside >actual &&
 150         test_cmp expect actual &&
 151         test_must_fail git reflog exists $outside
 152 '
 153
 154 test_expect_success 'core.logAllRefUpdates=always creates reflog by default' '
 155         test_config core.logAllRefUpdates always &&
 156         test_when_finished "git update-ref -d $outside" &&
 157         git update-ref $outside $A &&
 158         git rev-parse $A >expect &&
 159         git rev-parse $outside >actual &&
 160         test_cmp expect actual &&
 161         git reflog exists $outside
 162 '
 163
 164 test_expect_success 'core.logAllRefUpdates=always creates reflog for ORIG_HEAD' '
 165         test_config core.logAllRefUpdates always &&
 166         git update-ref ORIG_HEAD $A &&
 167         git reflog exists ORIG_HEAD
 168 '
 169
 170 test_expect_success '--no-create-reflog overrides core.logAllRefUpdates=always' '
 171         test_config core.logAllRefUpdates true &&
 172         test_when_finished "git update-ref -d $outside" &&
 173         git update-ref --no-create-reflog $outside $A &&
 174         git rev-parse $A >expect &&
 175         git rev-parse $outside >actual &&
 176         test_cmp expect actual &&
 177         test_must_fail git reflog exists $outside
 178 '
 179
 180 test_expect_success "create $m (by HEAD)" '
 181         git update-ref HEAD $A &&
 182         test $A = $(git show-ref -s --verify $m)
 183 '
 184 test_expect_success 'pack refs' '
 185         git pack-refs --all
 186 '
 187 test_expect_success "move $m (by HEAD)" '
 188         git update-ref HEAD $B $A &&
 189         test $B = $(git show-ref -s --verify $m)
 190 '
 191 test_expect_success "delete $m (by HEAD) should remove both packed and loose $m" '
 192         test_when_finished "git update-ref -d $m" &&
 193         git update-ref -d HEAD $B &&
 194         ! grep "$m" .git/packed-refs &&
 195         test_must_fail git show-ref --verify -q $m
 196 '
 197
 198 test_expect_success 'delete symref without dereference' '
 199         test_when_finished "git update-ref -d $m" &&
 200         echo foo >foo.c &&
 201         git add foo.c &&
 202         git commit -m foo &&
 203         git symbolic-ref SYMREF $m &&
 204         git update-ref --no-deref -d SYMREF &&
 205         git show-ref --verify -q $m &&
 206         test_must_fail git show-ref --verify -q SYMREF &&
 207         test_must_fail git symbolic-ref SYMREF
 208 '
 209
 210 test_expect_success 'delete symref without dereference when the referred ref is packed' '
 211         test_when_finished "git update-ref -d $m" &&
 212         echo foo >foo.c &&
 213         git add foo.c &&
 214         git commit -m foo &&
 215         git symbolic-ref SYMREF $m &&
 216         git pack-refs --all &&
 217         git update-ref --no-deref -d SYMREF &&
 218         git show-ref --verify -q $m &&
 219         test_must_fail git show-ref --verify -q SYMREF &&
 220         test_must_fail git symbolic-ref SYMREF
 221 '
 222
 223 test_expect_success 'update-ref -d is not confused by self-reference' '
 224         git symbolic-ref refs/heads/self refs/heads/self &&
 225         test_when_finished "rm -f .git/refs/heads/self" &&
 226         test_path_is_file .git/refs/heads/self &&
 227         test_must_fail git update-ref -d refs/heads/self &&
 228         test_path_is_file .git/refs/heads/self
 229 '
 230
 231 test_expect_success 'update-ref --no-deref -d can delete self-reference' '
 232         git symbolic-ref refs/heads/self refs/heads/self &&
 233         test_when_finished "rm -f .git/refs/heads/self" &&
 234         test_path_is_file .git/refs/heads/self &&
 235         git update-ref --no-deref -d refs/heads/self &&
 236         test_must_fail git show-ref --verify -q refs/heads/self
 237 '
 238
 239 test_expect_success 'update-ref --no-deref -d can delete reference to bad ref' '
 240         >.git/refs/heads/bad &&
 241         test_when_finished "rm -f .git/refs/heads/bad" &&
 242         git symbolic-ref refs/heads/ref-to-bad refs/heads/bad &&
 243         test_when_finished "git update-ref -d refs/heads/ref-to-bad" &&
 244         test_path_is_file .git/refs/heads/ref-to-bad &&
 245         git update-ref --no-deref -d refs/heads/ref-to-bad &&
 246         test_must_fail git show-ref --verify -q refs/heads/ref-to-bad
 247 '
 248
 249 test_expect_success '(not) create HEAD with old sha1' '
 250         test_must_fail git update-ref HEAD $A $B
 251 '
 252 test_expect_success "(not) prior created .git/$m" '
 253         test_when_finished "git update-ref -d $m" &&
 254         test_must_fail git show-ref --verify -q $m
 255 '
 256
 257 test_expect_success 'create HEAD' '
 258         git update-ref HEAD $A
 259 '
 260 test_expect_success '(not) change HEAD with wrong SHA1' '
 261         test_must_fail git update-ref HEAD $B $Z
 262 '
 263 test_expect_success "(not) changed .git/$m" '
 264         test_when_finished "git update-ref -d $m" &&
 265         ! test $B = $(git show-ref -s --verify $m)
 266 '
 267
 268 rm -f .git/logs/refs/heads/main
 269 test_expect_success "create $m (logged by touch)" '
 270         test_config core.logAllRefUpdates false &&
 271         GIT_COMMITTER_DATE="2005-05-26 23:30" \
 272         git update-ref --create-reflog HEAD $A -m "Initial Creation" &&
 273         test $A = $(git show-ref -s --verify $m)
 274 '
 275 test_expect_success "update $m (logged by touch)" '
 276         test_config core.logAllRefUpdates false &&
 277         GIT_COMMITTER_DATE="2005-05-26 23:31" \
 278         git update-ref HEAD $B $A -m "Switch" &&
 279         test $B = $(git show-ref -s --verify $m)
 280 '
 281 test_expect_success "set $m (logged by touch)" '
 282         test_config core.logAllRefUpdates false &&
 283         GIT_COMMITTER_DATE="2005-05-26 23:41" \
 284         git update-ref HEAD $A &&
 285         test $A = $(git show-ref -s --verify $m)
 286 '
 287
 288 test_expect_success 'empty directory removal' '
 289         git branch d1/d2/r1 HEAD &&
 290         git branch d1/r2 HEAD &&
 291         test_path_is_file .git/refs/heads/d1/d2/r1 &&
 292         test_path_is_file .git/logs/refs/heads/d1/d2/r1 &&
 293         git branch -d d1/d2/r1 &&
 294         test_must_fail git show-ref --verify -q refs/heads/d1/d2 &&
 295         test_must_fail git show-ref --verify -q logs/refs/heads/d1/d2 &&
 296         test_path_is_file .git/refs/heads/d1/r2 &&
 297         test_path_is_file .git/logs/refs/heads/d1/r2
 298 '
 299
 300 test_expect_success 'symref empty directory removal' '
 301         git branch e1/e2/r1 HEAD &&
 302         git branch e1/r2 HEAD &&
 303         git checkout e1/e2/r1 &&
 304         test_when_finished "git checkout main" &&
 305         test_path_is_file .git/refs/heads/e1/e2/r1 &&
 306         test_path_is_file .git/logs/refs/heads/e1/e2/r1 &&
 307         git update-ref -d HEAD &&
 308         test_must_fail git show-ref --verify -q refs/heads/e1/e2 &&
 309         test_must_fail git show-ref --verify -q logs/refs/heads/e1/e2 &&
 310         test_path_is_file .git/refs/heads/e1/r2 &&
 311         test_path_is_file .git/logs/refs/heads/e1/r2 &&
 312         test_path_is_file .git/logs/HEAD
 313 '
 314
 315 cat >expect <<EOF
 316 $Z $A $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150200 +0000       Initial Creation
 317 $A $B $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150260 +0000       Switch
 318 $B $A $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150860 +0000
 319 EOF
 320 test_expect_success "verifying $m's log (logged by touch)" '
 321         test_when_finished "git update-ref -d $m && rm -rf .git/logs actual expect" &&
 322         test-tool ref-store main for-each-reflog-ent $m >actual &&
 323         test_cmp actual expect
 324 '
 325
 326 test_expect_success "create $m (logged by config)" '
 327         test_config core.logAllRefUpdates true &&
 328         GIT_COMMITTER_DATE="2005-05-26 23:32" \
 329         git update-ref HEAD $A -m "Initial Creation" &&
 330         test $A = $(git show-ref -s --verify $m)
 331 '
 332 test_expect_success "update $m (logged by config)" '
 333         test_config core.logAllRefUpdates true &&
 334         GIT_COMMITTER_DATE="2005-05-26 23:33" \
 335         git update-ref HEAD $B $A -m "Switch" &&
 336         test $B = $(git show-ref -s --verify $m)
 337 '
 338 test_expect_success "set $m (logged by config)" '
 339         test_config core.logAllRefUpdates true &&
 340         GIT_COMMITTER_DATE="2005-05-26 23:43" \
 341         git update-ref HEAD $A &&
 342         test $A = $(git show-ref -s --verify $m)
 343 '
 344
 345 cat >expect <<EOF
 346 $Z $A $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150320 +0000       Initial Creation
 347 $A $B $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150380 +0000       Switch
 348 $B $A $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150980 +0000
 349 EOF
 350 test_expect_success "verifying $m's log (logged by config)" '
 351         test_when_finished "git update-ref -d $m && rm -rf .git/logs actual expect" &&
 352         test-tool ref-store main for-each-reflog-ent $m >actual &&
 353         test_cmp actual expect
 354 '
 355
 356 test_expect_success 'set up for querying the reflog' '
 357         git update-ref $m $D &&
 358         cat >.git/logs/$m <<-EOF
 359         $Z $C $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150320 -0500
 360         $C $A $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150350 -0500
 361         $A $B $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150380 -0500
 362         $F $Z $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150680 -0500
 363         $Z $E $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150980 -0500
 364         EOF
 365 '
 366
 367 ed="Thu, 26 May 2005 18:32:00 -0500"
 368 gd="Thu, 26 May 2005 18:33:00 -0500"
 369 ld="Thu, 26 May 2005 18:43:00 -0500"
 370 test_expect_success 'Query "main@{May 25 2005}" (before history)' '
 371         test_when_finished "rm -f o e" &&
 372         git rev-parse --verify "main@{May 25 2005}" >o 2>e &&
 373         echo "$C" >expect &&
 374         test_cmp expect o &&
 375         echo "warning: log for '\''main'\'' only goes back to $ed" >expect &&
 376         test_cmp expect e
 377 '
 378 test_expect_success 'Query main@{2005-05-25} (before history)' '
 379         test_when_finished "rm -f o e" &&
 380         git rev-parse --verify main@{2005-05-25} >o 2>e &&
 381         echo "$C" >expect &&
 382         test_cmp expect o &&
 383         echo "warning: log for '\''main'\'' only goes back to $ed" >expect &&
 384         test_cmp expect e
 385 '
 386 test_expect_success 'Query "main@{May 26 2005 23:31:59}" (1 second before history)' '
 387         test_when_finished "rm -f o e" &&
 388         git rev-parse --verify "main@{May 26 2005 23:31:59}" >o 2>e &&
 389         echo "$C" >expect &&
 390         test_cmp expect o &&
 391         echo "warning: log for '\''main'\'' only goes back to $ed" >expect &&
 392         test_cmp expect e
 393 '
 394 test_expect_success 'Query "main@{May 26 2005 23:32:00}" (exactly history start)' '
 395         test_when_finished "rm -f o e" &&
 396         git rev-parse --verify "main@{May 26 2005 23:32:00}" >o 2>e &&
 397         echo "$C" >expect &&
 398         test_cmp expect o &&
 399         test_must_be_empty e
 400 '
 401 test_expect_success 'Query "main@{May 26 2005 23:32:30}" (first non-creation change)' '
 402         test_when_finished "rm -f o e" &&
 403         git rev-parse --verify "main@{May 26 2005 23:32:30}" >o 2>e &&
 404         echo "$A" >expect &&
 405         test_cmp expect o &&
 406         test_must_be_empty e
 407 '
 408 test_expect_success 'Query "main@{2005-05-26 23:33:01}" (middle of history with gap)' '
 409         test_when_finished "rm -f o e" &&
 410         git rev-parse --verify "main@{2005-05-26 23:33:01}" >o 2>e &&
 411         echo "$B" >expect &&
 412         test_cmp expect o &&
 413         test_i18ngrep -F "warning: log for ref $m has gap after $gd" e
 414 '
 415 test_expect_success 'Query "main@{2005-05-26 23:38:00}" (middle of history)' '
 416         test_when_finished "rm -f o e" &&
 417         git rev-parse --verify "main@{2005-05-26 23:38:00}" >o 2>e &&
 418         echo "$Z" >expect &&
 419         test_cmp expect o &&
 420         test_must_be_empty e
 421 '
 422 test_expect_success 'Query "main@{2005-05-26 23:43:00}" (exact end of history)' '
 423         test_when_finished "rm -f o e" &&
 424         git rev-parse --verify "main@{2005-05-26 23:43:00}" >o 2>e &&
 425         echo "$E" >expect &&
 426         test_cmp expect o &&
 427         test_must_be_empty e
 428 '
 429 test_expect_success 'Query "main@{2005-05-28}" (past end of history)' '
 430         test_when_finished "rm -f o e" &&
 431         git rev-parse --verify "main@{2005-05-28}" >o 2>e &&
 432         echo "$D" >expect &&
 433         test_cmp expect o &&
 434         test_i18ngrep -F "warning: log for ref $m unexpectedly ended on $ld" e
 435 '
 436
 437 rm -f .git/$m .git/logs/$m expect
 438
 439 test_expect_success 'creating initial files' '
 440         test_when_finished rm -f M &&
 441         echo TEST >F &&
 442         git add F &&
 443         GIT_AUTHOR_DATE="2005-05-26 23:30" \
 444         GIT_COMMITTER_DATE="2005-05-26 23:30" git commit -m add -a &&
 445         h_TEST=$(git rev-parse --verify HEAD) &&
 446         echo The other day this did not work. >M &&
 447         echo And then Bob told me how to fix it. >>M &&
 448         echo OTHER >F &&
 449         GIT_AUTHOR_DATE="2005-05-26 23:41" \
 450         GIT_COMMITTER_DATE="2005-05-26 23:41" git commit -F M -a &&
 451         h_OTHER=$(git rev-parse --verify HEAD) &&
 452         GIT_AUTHOR_DATE="2005-05-26 23:44" \
 453         GIT_COMMITTER_DATE="2005-05-26 23:44" git commit --amend &&
 454         h_FIXED=$(git rev-parse --verify HEAD) &&
 455         echo Merged initial commit and a later commit. >M &&
 456         echo $h_TEST >.git/MERGE_HEAD &&
 457         GIT_AUTHOR_DATE="2005-05-26 23:45" \
 458         GIT_COMMITTER_DATE="2005-05-26 23:45" git commit -F M &&
 459         h_MERGED=$(git rev-parse --verify HEAD)
 460 '
 461
 462 cat >expect <<EOF
 463 $Z $h_TEST $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150200 +0000  commit (initial): add
 464 $h_TEST $h_OTHER $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150860 +0000    commit: The other day this did not work.
 465 $h_OTHER $h_FIXED $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117151040 +0000   commit (amend): The other day this did not work.
 466 $h_FIXED $h_MERGED $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117151100 +0000  commit (merge): Merged initial commit and a later commit.
 467 EOF
 468 test_expect_success 'git commit logged updates' '
 469         test-tool ref-store main for-each-reflog-ent $m >actual &&
 470         test_cmp expect actual
 471 '
 472 unset h_TEST h_OTHER h_FIXED h_MERGED
 473
 474 test_expect_success 'git cat-file blob main:F (expect OTHER)' '
 475         test OTHER = $(git cat-file blob main:F)
 476 '
 477 test_expect_success 'git cat-file blob main@{2005-05-26 23:30}:F (expect TEST)' '
 478         test TEST = $(git cat-file blob "main@{2005-05-26 23:30}:F")
 479 '
 480 test_expect_success 'git cat-file blob main@{2005-05-26 23:42}:F (expect OTHER)' '
 481         test OTHER = $(git cat-file blob "main@{2005-05-26 23:42}:F")
 482 '
 483
 484 # Test adding and deleting pseudorefs
 485
 486 test_expect_success 'given old value for missing pseudoref, do not create' '
 487         test_must_fail git update-ref PSEUDOREF $A $B 2>err &&
 488         test_must_fail git rev-parse PSEUDOREF &&
 489         test_i18ngrep "unable to resolve reference" err
 490 '
 491
 492 test_expect_success 'create pseudoref' '
 493         git update-ref PSEUDOREF $A &&
 494         test $A = $(git rev-parse PSEUDOREF)
 495 '
 496
 497 test_expect_success 'overwrite pseudoref with no old value given' '
 498         git update-ref PSEUDOREF $B &&
 499         test $B = $(git rev-parse PSEUDOREF)
 500 '
 501
 502 test_expect_success 'overwrite pseudoref with correct old value' '
 503         git update-ref PSEUDOREF $C $B &&
 504         test $C = $(git rev-parse PSEUDOREF)
 505 '
 506
 507 test_expect_success 'do not overwrite pseudoref with wrong old value' '
 508         test_must_fail git update-ref PSEUDOREF $D $E 2>err &&
 509         test $C = $(git rev-parse PSEUDOREF) &&
 510         test_i18ngrep "cannot lock ref.*expected" err
 511 '
 512
 513 test_expect_success 'delete pseudoref' '
 514         git update-ref -d PSEUDOREF &&
 515         test_must_fail git rev-parse PSEUDOREF
 516 '
 517
 518 test_expect_success 'do not delete pseudoref with wrong old value' '
 519         git update-ref PSEUDOREF $A &&
 520         test_must_fail git update-ref -d PSEUDOREF $B 2>err &&
 521         test $A = $(git rev-parse PSEUDOREF) &&
 522         test_i18ngrep "cannot lock ref.*expected" err
 523 '
 524
 525 test_expect_success 'delete pseudoref with correct old value' '
 526         git update-ref -d PSEUDOREF $A &&
 527         test_must_fail git rev-parse PSEUDOREF
 528 '
 529
 530 test_expect_success 'create pseudoref with old OID zero' '
 531         git update-ref PSEUDOREF $A $Z &&
 532         test $A = $(git rev-parse PSEUDOREF)
 533 '
 534
 535 test_expect_success 'do not overwrite pseudoref with old OID zero' '
 536         test_when_finished git update-ref -d PSEUDOREF &&
 537         test_must_fail git update-ref PSEUDOREF $B $Z 2>err &&
 538         test $A = $(git rev-parse PSEUDOREF) &&
 539         test_i18ngrep "already exists" err
 540 '
 541
 542 # Test --stdin
 543
 544 a=refs/heads/a
 545 b=refs/heads/b
 546 c=refs/heads/c
 547 E='""'
 548 F='%s\0'
 549 pws='path with space'
 550
 551 test_expect_success 'stdin test setup' '
 552         echo "$pws" >"$pws" &&
 553         git add -- "$pws" &&
 554         git commit -m "$pws"
 555 '
 556
 557 test_expect_success '-z fails without --stdin' '
 558         test_must_fail git update-ref -z $m $m $m 2>err &&
 559         test_i18ngrep "usage: git update-ref" err
 560 '
 561
 562 test_expect_success 'stdin works with no input' '
 563         >stdin &&
 564         git update-ref --stdin <stdin &&
 565         git rev-parse --verify -q $m
 566 '
 567
 568 test_expect_success 'stdin fails on empty line' '
 569         echo "" >stdin &&
 570         test_must_fail git update-ref --stdin <stdin 2>err &&
 571         grep "fatal: empty command in input" err
 572 '
 573
 574 test_expect_success 'stdin fails on only whitespace' '
 575         echo " " >stdin &&
 576         test_must_fail git update-ref --stdin <stdin 2>err &&
 577         grep "fatal: whitespace before command:  " err
 578 '
 579
 580 test_expect_success 'stdin fails on leading whitespace' '
 581         echo " create $a $m" >stdin &&
 582         test_must_fail git update-ref --stdin <stdin 2>err &&
 583         grep "fatal: whitespace before command:  create $a $m" err
 584 '
 585
 586 test_expect_success 'stdin fails on unknown command' '
 587         echo "unknown $a" >stdin &&
 588         test_must_fail git update-ref --stdin <stdin 2>err &&
 589         grep "fatal: unknown command: unknown $a" err
 590 '
 591
 592 test_expect_success 'stdin fails on unbalanced quotes' '
 593         echo "create $a \"main" >stdin &&
 594         test_must_fail git update-ref --stdin <stdin 2>err &&
 595         grep "fatal: badly quoted argument: \\\"main" err
 596 '
 597
 598 test_expect_success 'stdin fails on invalid escape' '
 599         echo "create $a \"ma\zn\"" >stdin &&
 600         test_must_fail git update-ref --stdin <stdin 2>err &&
 601         grep "fatal: badly quoted argument: \\\"ma\\\\zn\\\"" err
 602 '
 603
 604 test_expect_success 'stdin fails on junk after quoted argument' '
 605         echo "create \"$a\"main" >stdin &&
 606         test_must_fail git update-ref --stdin <stdin 2>err &&
 607         grep "fatal: unexpected character after quoted argument: \\\"$a\\\"main" err
 608 '
 609
 610 test_expect_success 'stdin fails create with no ref' '
 611         echo "create " >stdin &&
 612         test_must_fail git update-ref --stdin <stdin 2>err &&
 613         grep "fatal: create: missing <ref>" err
 614 '
 615
 616 test_expect_success 'stdin fails create with no new value' '
 617         echo "create $a" >stdin &&
 618         test_must_fail git update-ref --stdin <stdin 2>err &&
 619         grep "fatal: create $a: missing <newvalue>" err
 620 '
 621
 622 test_expect_success 'stdin fails create with too many arguments' '
 623         echo "create $a $m $m" >stdin &&
 624         test_must_fail git update-ref --stdin <stdin 2>err &&
 625         grep "fatal: create $a: extra input:  $m" err
 626 '
 627
 628 test_expect_success 'stdin fails update with no ref' '
 629         echo "update " >stdin &&
 630         test_must_fail git update-ref --stdin <stdin 2>err &&
 631         grep "fatal: update: missing <ref>" err
 632 '
 633
 634 test_expect_success 'stdin fails update with no new value' '
 635         echo "update $a" >stdin &&
 636         test_must_fail git update-ref --stdin <stdin 2>err &&
 637         grep "fatal: update $a: missing <newvalue>" err
 638 '
 639
 640 test_expect_success 'stdin fails update with too many arguments' '
 641         echo "update $a $m $m $m" >stdin &&
 642         test_must_fail git update-ref --stdin <stdin 2>err &&
 643         grep "fatal: update $a: extra input:  $m" err
 644 '
 645
 646 test_expect_success 'stdin fails delete with no ref' '
 647         echo "delete " >stdin &&
 648         test_must_fail git update-ref --stdin <stdin 2>err &&
 649         grep "fatal: delete: missing <ref>" err
 650 '
 651
 652 test_expect_success 'stdin fails delete with too many arguments' '
 653         echo "delete $a $m $m" >stdin &&
 654         test_must_fail git update-ref --stdin <stdin 2>err &&
 655         grep "fatal: delete $a: extra input:  $m" err
 656 '
 657
 658 test_expect_success 'stdin fails verify with too many arguments' '
 659         echo "verify $a $m $m" >stdin &&
 660         test_must_fail git update-ref --stdin <stdin 2>err &&
 661         grep "fatal: verify $a: extra input:  $m" err
 662 '
 663
 664 test_expect_success 'stdin fails option with unknown name' '
 665         echo "option unknown" >stdin &&
 666         test_must_fail git update-ref --stdin <stdin 2>err &&
 667         grep "fatal: option unknown: unknown" err
 668 '
 669
 670 test_expect_success 'stdin fails with duplicate refs' '
 671         cat >stdin <<-EOF &&
 672         create $a $m
 673         create $b $m
 674         create $a $m
 675         EOF
 676         test_must_fail git update-ref --stdin <stdin 2>err &&
 677         test_i18ngrep "fatal: multiple updates for ref '"'"'$a'"'"' not allowed" err
 678 '
 679
 680 test_expect_success 'stdin create ref works' '
 681         echo "create $a $m" >stdin &&
 682         git update-ref --stdin <stdin &&
 683         git rev-parse $m >expect &&
 684         git rev-parse $a >actual &&
 685         test_cmp expect actual
 686 '
 687
 688 test_expect_success 'stdin does not create reflogs by default' '
 689         test_when_finished "git update-ref -d $outside" &&
 690         echo "create $outside $m" >stdin &&
 691         git update-ref --stdin <stdin &&
 692         git rev-parse $m >expect &&
 693         git rev-parse $outside >actual &&
 694         test_cmp expect actual &&
 695         test_must_fail git reflog exists $outside
 696 '
 697
 698 test_expect_success 'stdin creates reflogs with --create-reflog' '
 699         test_when_finished "git update-ref -d $outside" &&
 700         echo "create $outside $m" >stdin &&
 701         git update-ref --create-reflog --stdin <stdin &&
 702         git rev-parse $m >expect &&
 703         git rev-parse $outside >actual &&
 704         test_cmp expect actual &&
 705         git reflog exists $outside
 706 '
 707
 708 test_expect_success 'stdin succeeds with quoted argument' '
 709         git update-ref -d $a &&
 710         echo "create $a \"$m\"" >stdin &&
 711         git update-ref --stdin <stdin &&
 712         git rev-parse $m >expect &&
 713         git rev-parse $a >actual &&
 714         test_cmp expect actual
 715 '
 716
 717 test_expect_success 'stdin succeeds with escaped character' '
 718         git update-ref -d $a &&
 719         echo "create $a \"ma\\151n\"" >stdin &&
 720         git update-ref --stdin <stdin &&
 721         git rev-parse $m >expect &&
 722         git rev-parse $a >actual &&
 723         test_cmp expect actual
 724 '
 725
 726 test_expect_success 'stdin update ref creates with zero old value' '
 727         echo "update $b $m $Z" >stdin &&
 728         git update-ref --stdin <stdin &&
 729         git rev-parse $m >expect &&
 730         git rev-parse $b >actual &&
 731         test_cmp expect actual &&
 732         git update-ref -d $b
 733 '
 734
 735 test_expect_success 'stdin update ref creates with empty old value' '
 736         echo "update $b $m $E" >stdin &&
 737         git update-ref --stdin <stdin &&
 738         git rev-parse $m >expect &&
 739         git rev-parse $b >actual &&
 740         test_cmp expect actual
 741 '
 742
 743 test_expect_success 'stdin create ref works with path with space to blob' '
 744         echo "create refs/blobs/pws \"$m:$pws\"" >stdin &&
 745         git update-ref --stdin <stdin &&
 746         git rev-parse "$m:$pws" >expect &&
 747         git rev-parse refs/blobs/pws >actual &&
 748         test_cmp expect actual &&
 749         git update-ref -d refs/blobs/pws
 750 '
 751
 752 test_expect_success 'stdin update ref fails with wrong old value' '
 753         echo "update $c $m $m~1" >stdin &&
 754         test_must_fail git update-ref --stdin <stdin 2>err &&
 755         grep "fatal: cannot lock ref '"'"'$c'"'"'" err &&
 756         test_must_fail git rev-parse --verify -q $c
 757 '
 758
 759 test_expect_success 'stdin update ref fails with bad old value' '
 760         echo "update $c $m does-not-exist" >stdin &&
 761         test_must_fail git update-ref --stdin <stdin 2>err &&
 762         grep "fatal: update $c: invalid <oldvalue>: does-not-exist" err &&
 763         test_must_fail git rev-parse --verify -q $c
 764 '
 765
 766 test_expect_success 'stdin create ref fails with bad new value' '
 767         echo "create $c does-not-exist" >stdin &&
 768         test_must_fail git update-ref --stdin <stdin 2>err &&
 769         grep "fatal: create $c: invalid <newvalue>: does-not-exist" err &&
 770         test_must_fail git rev-parse --verify -q $c
 771 '
 772
 773 test_expect_success 'stdin create ref fails with zero new value' '
 774         echo "create $c " >stdin &&
 775         test_must_fail git update-ref --stdin <stdin 2>err &&
 776         grep "fatal: create $c: zero <newvalue>" err &&
 777         test_must_fail git rev-parse --verify -q $c
 778 '
 779
 780 test_expect_success 'stdin update ref works with right old value' '
 781         echo "update $b $m~1 $m" >stdin &&
 782         git update-ref --stdin <stdin &&
 783         git rev-parse $m~1 >expect &&
 784         git rev-parse $b >actual &&
 785         test_cmp expect actual
 786 '
 787
 788 test_expect_success 'stdin delete ref fails with wrong old value' '
 789         echo "delete $a $m~1" >stdin &&
 790         test_must_fail git update-ref --stdin <stdin 2>err &&
 791         grep "fatal: cannot lock ref '"'"'$a'"'"'" err &&
 792         git rev-parse $m >expect &&
 793         git rev-parse $a >actual &&
 794         test_cmp expect actual
 795 '
 796
 797 test_expect_success 'stdin delete ref fails with zero old value' '
 798         echo "delete $a " >stdin &&
 799         test_must_fail git update-ref --stdin <stdin 2>err &&
 800         grep "fatal: delete $a: zero <oldvalue>" err &&
 801         git rev-parse $m >expect &&
 802         git rev-parse $a >actual &&
 803         test_cmp expect actual
 804 '
 805
 806 test_expect_success 'stdin update symref works option no-deref' '
 807         git symbolic-ref TESTSYMREF $b &&
 808         cat >stdin <<-EOF &&
 809         option no-deref
 810         update TESTSYMREF $a $b
 811         EOF
 812         git update-ref --stdin <stdin &&
 813         git rev-parse TESTSYMREF >expect &&
 814         git rev-parse $a >actual &&
 815         test_cmp expect actual &&
 816         git rev-parse $m~1 >expect &&
 817         git rev-parse $b >actual &&
 818         test_cmp expect actual
 819 '
 820
 821 test_expect_success 'stdin delete symref works option no-deref' '
 822         git symbolic-ref TESTSYMREF $b &&
 823         cat >stdin <<-EOF &&
 824         option no-deref
 825         delete TESTSYMREF $b
 826         EOF
 827         git update-ref --stdin <stdin &&
 828         test_must_fail git rev-parse --verify -q TESTSYMREF &&
 829         git rev-parse $m~1 >expect &&
 830         git rev-parse $b >actual &&
 831         test_cmp expect actual
 832 '
 833
 834 test_expect_success 'stdin update symref works flag --no-deref' '
 835         git symbolic-ref TESTSYMREFONE $b &&
 836         git symbolic-ref TESTSYMREFTWO $b &&
 837         cat >stdin <<-EOF &&
 838         update TESTSYMREFONE $a $b
 839         update TESTSYMREFTWO $a $b
 840         EOF
 841         git update-ref --no-deref --stdin <stdin &&
 842         git rev-parse TESTSYMREFONE TESTSYMREFTWO >expect &&
 843         git rev-parse $a $a >actual &&
 844         test_cmp expect actual &&
 845         git rev-parse $m~1 >expect &&
 846         git rev-parse $b >actual &&
 847         test_cmp expect actual
 848 '
 849
 850 test_expect_success 'stdin delete symref works flag --no-deref' '
 851         git symbolic-ref TESTSYMREFONE $b &&
 852         git symbolic-ref TESTSYMREFTWO $b &&
 853         cat >stdin <<-EOF &&
 854         delete TESTSYMREFONE $b
 855         delete TESTSYMREFTWO $b
 856         EOF
 857         git update-ref --no-deref --stdin <stdin &&
 858         test_must_fail git rev-parse --verify -q TESTSYMREFONE &&
 859         test_must_fail git rev-parse --verify -q TESTSYMREFTWO &&
 860         git rev-parse $m~1 >expect &&
 861         git rev-parse $b >actual &&
 862         test_cmp expect actual
 863 '
 864
 865 test_expect_success 'stdin delete ref works with right old value' '
 866         echo "delete $b $m~1" >stdin &&
 867         git update-ref --stdin <stdin &&
 868         test_must_fail git rev-parse --verify -q $b
 869 '
 870
 871 test_expect_success 'stdin update/create/verify combination works' '
 872         cat >stdin <<-EOF &&
 873         update $a $m
 874         create $b $m
 875         verify $c
 876         EOF
 877         git update-ref --stdin <stdin &&
 878         git rev-parse $m >expect &&
 879         git rev-parse $a >actual &&
 880         test_cmp expect actual &&
 881         git rev-parse $b >actual &&
 882         test_cmp expect actual &&
 883         test_must_fail git rev-parse --verify -q $c
 884 '
 885
 886 test_expect_success 'stdin verify succeeds for correct value' '
 887         git rev-parse $m >expect &&
 888         echo "verify $m $m" >stdin &&
 889         git update-ref --stdin <stdin &&
 890         git rev-parse $m >actual &&
 891         test_cmp expect actual
 892 '
 893
 894 test_expect_success 'stdin verify succeeds for missing reference' '
 895         echo "verify refs/heads/missing $Z" >stdin &&
 896         git update-ref --stdin <stdin &&
 897         test_must_fail git rev-parse --verify -q refs/heads/missing
 898 '
 899
 900 test_expect_success 'stdin verify treats no value as missing' '
 901         echo "verify refs/heads/missing" >stdin &&
 902         git update-ref --stdin <stdin &&
 903         test_must_fail git rev-parse --verify -q refs/heads/missing
 904 '
 905
 906 test_expect_success 'stdin verify fails for wrong value' '
 907         git rev-parse $m >expect &&
 908         echo "verify $m $m~1" >stdin &&
 909         test_must_fail git update-ref --stdin <stdin &&
 910         git rev-parse $m >actual &&
 911         test_cmp expect actual
 912 '
 913
 914 test_expect_success 'stdin verify fails for mistaken null value' '
 915         git rev-parse $m >expect &&
 916         echo "verify $m $Z" >stdin &&
 917         test_must_fail git update-ref --stdin <stdin &&
 918         git rev-parse $m >actual &&
 919         test_cmp expect actual
 920 '
 921
 922 test_expect_success 'stdin verify fails for mistaken empty value' '
 923         M=$(git rev-parse $m) &&
 924         test_when_finished "git update-ref $m $M" &&
 925         git rev-parse $m >expect &&
 926         echo "verify $m" >stdin &&
 927         test_must_fail git update-ref --stdin <stdin &&
 928         git rev-parse $m >actual &&
 929         test_cmp expect actual
 930 '
 931
 932 test_expect_success 'stdin update refs works with identity updates' '
 933         cat >stdin <<-EOF &&
 934         update $a $m $m
 935         update $b $m $m
 936         update $c $Z $E
 937         EOF
 938         git update-ref --stdin <stdin &&
 939         git rev-parse $m >expect &&
 940         git rev-parse $a >actual &&
 941         test_cmp expect actual &&
 942         git rev-parse $b >actual &&
 943         test_cmp expect actual &&
 944         test_must_fail git rev-parse --verify -q $c
 945 '
 946
 947 test_expect_success 'stdin update refs fails with wrong old value' '
 948         git update-ref $c $m &&
 949         cat >stdin <<-EOF &&
 950         update $a $m $m
 951         update $b $m $m
 952         update $c  ''
 953         EOF
 954         test_must_fail git update-ref --stdin <stdin 2>err &&
 955         grep "fatal: cannot lock ref '"'"'$c'"'"'" err &&
 956         git rev-parse $m >expect &&
 957         git rev-parse $a >actual &&
 958         test_cmp expect actual &&
 959         git rev-parse $b >actual &&
 960         test_cmp expect actual &&
 961         git rev-parse $c >actual &&
 962         test_cmp expect actual
 963 '
 964
 965 test_expect_success 'stdin delete refs works with packed and loose refs' '
 966         git pack-refs --all &&
 967         git update-ref $c $m~1 &&
 968         cat >stdin <<-EOF &&
 969         delete $a $m
 970         update $b $Z $m
 971         update $c $E $m~1
 972         EOF
 973         git update-ref --stdin <stdin &&
 974         test_must_fail git rev-parse --verify -q $a &&
 975         test_must_fail git rev-parse --verify -q $b &&
 976         test_must_fail git rev-parse --verify -q $c
 977 '
 978
 979 test_expect_success 'stdin -z works on empty input' '
 980         >stdin &&
 981         git update-ref -z --stdin <stdin &&
 982         git rev-parse --verify -q $m
 983 '
 984
 985 test_expect_success 'stdin -z fails on empty line' '
 986         echo "" >stdin &&
 987         test_must_fail git update-ref -z --stdin <stdin 2>err &&
 988         grep "fatal: whitespace before command: " err
 989 '
 990
 991 test_expect_success 'stdin -z fails on empty command' '
 992         printf $F "" >stdin &&
 993         test_must_fail git update-ref -z --stdin <stdin 2>err &&
 994         grep "fatal: empty command in input" err
 995 '
 996
 997 test_expect_success 'stdin -z fails on only whitespace' '
 998         printf $F " " >stdin &&
 999         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1000         grep "fatal: whitespace before command:  " err
1001 '
1002
1003 test_expect_success 'stdin -z fails on leading whitespace' '
1004         printf $F " create $a" "$m" >stdin &&
1005         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1006         grep "fatal: whitespace before command:  create $a" err
1007 '
1008
1009 test_expect_success 'stdin -z fails on unknown command' '
1010         printf $F "unknown $a" >stdin &&
1011         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1012         grep "fatal: unknown command: unknown $a" err
1013 '
1014
1015 test_expect_success 'stdin -z fails create with no ref' '
1016         printf $F "create " >stdin &&
1017         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1018         grep "fatal: create: missing <ref>" err
1019 '
1020
1021 test_expect_success 'stdin -z fails create with no new value' '
1022         printf $F "create $a" >stdin &&
1023         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1024         grep "fatal: create $a: unexpected end of input when reading <newvalue>" err
1025 '
1026
1027 test_expect_success 'stdin -z fails create with too many arguments' '
1028         printf $F "create $a" "$m" "$m" >stdin &&
1029         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1030         grep "fatal: unknown command: $m" err
1031 '
1032
1033 test_expect_success 'stdin -z fails update with no ref' '
1034         printf $F "update " >stdin &&
1035         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1036         grep "fatal: update: missing <ref>" err
1037 '
1038
1039 test_expect_success 'stdin -z fails update with too few args' '
1040         printf $F "update $a" "$m" >stdin &&
1041         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1042         grep "fatal: update $a: unexpected end of input when reading <oldvalue>" err
1043 '
1044
1045 test_expect_success 'stdin -z emits warning with empty new value' '
1046         git update-ref $a $m &&
1047         printf $F "update $a" "" "" >stdin &&
1048         git update-ref -z --stdin <stdin 2>err &&
1049         grep "warning: update $a: missing <newvalue>, treating as zero" err &&
1050         test_must_fail git rev-parse --verify -q $a
1051 '
1052
1053 test_expect_success 'stdin -z fails update with no new value' '
1054         printf $F "update $a" >stdin &&
1055         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1056         grep "fatal: update $a: unexpected end of input when reading <newvalue>" err
1057 '
1058
1059 test_expect_success 'stdin -z fails update with no old value' '
1060         printf $F "update $a" "$m" >stdin &&
1061         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1062         grep "fatal: update $a: unexpected end of input when reading <oldvalue>" err
1063 '
1064
1065 test_expect_success 'stdin -z fails update with too many arguments' '
1066         printf $F "update $a" "$m" "$m" "$m" >stdin &&
1067         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1068         grep "fatal: unknown command: $m" err
1069 '
1070
1071 test_expect_success 'stdin -z fails delete with no ref' '
1072         printf $F "delete " >stdin &&
1073         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1074         grep "fatal: delete: missing <ref>" err
1075 '
1076
1077 test_expect_success 'stdin -z fails delete with no old value' '
1078         printf $F "delete $a" >stdin &&
1079         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1080         grep "fatal: delete $a: unexpected end of input when reading <oldvalue>" err
1081 '
1082
1083 test_expect_success 'stdin -z fails delete with too many arguments' '
1084         printf $F "delete $a" "$m" "$m" >stdin &&
1085         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1086         grep "fatal: unknown command: $m" err
1087 '
1088
1089 test_expect_success 'stdin -z fails verify with too many arguments' '
1090         printf $F "verify $a" "$m" "$m" >stdin &&
1091         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1092         grep "fatal: unknown command: $m" err
1093 '
1094
1095 test_expect_success 'stdin -z fails verify with no old value' '
1096         printf $F "verify $a" >stdin &&
1097         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1098         grep "fatal: verify $a: unexpected end of input when reading <oldvalue>" err
1099 '
1100
1101 test_expect_success 'stdin -z fails option with unknown name' '
1102         printf $F "option unknown" >stdin &&
1103         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1104         grep "fatal: option unknown: unknown" err
1105 '
1106
1107 test_expect_success 'stdin -z fails with duplicate refs' '
1108         printf $F "create $a" "$m" "create $b" "$m" "create $a" "$m" >stdin &&
1109         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1110         test_i18ngrep "fatal: multiple updates for ref '"'"'$a'"'"' not allowed" err
1111 '
1112
1113 test_expect_success 'stdin -z create ref works' '
1114         printf $F "create $a" "$m" >stdin &&
1115         git update-ref -z --stdin <stdin &&
1116         git rev-parse $m >expect &&
1117         git rev-parse $a >actual &&
1118         test_cmp expect actual
1119 '
1120
1121 test_expect_success 'stdin -z update ref creates with zero old value' '
1122         printf $F "update $b" "$m" "$Z" >stdin &&
1123         git update-ref -z --stdin <stdin &&
1124         git rev-parse $m >expect &&
1125         git rev-parse $b >actual &&
1126         test_cmp expect actual &&
1127         git update-ref -d $b
1128 '
1129
1130 test_expect_success 'stdin -z update ref creates with empty old value' '
1131         printf $F "update $b" "$m" "" >stdin &&
1132         git update-ref -z --stdin <stdin &&
1133         git rev-parse $m >expect &&
1134         git rev-parse $b >actual &&
1135         test_cmp expect actual
1136 '
1137
1138 test_expect_success 'stdin -z create ref works with path with space to blob' '
1139         printf $F "create refs/blobs/pws" "$m:$pws" >stdin &&
1140         git update-ref -z --stdin <stdin &&
1141         git rev-parse "$m:$pws" >expect &&
1142         git rev-parse refs/blobs/pws >actual &&
1143         test_cmp expect actual &&
1144         git update-ref -d refs/blobs/pws
1145 '
1146
1147 test_expect_success 'stdin -z update ref fails with wrong old value' '
1148         printf $F "update $c" "$m" "$m~1" >stdin &&
1149         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1150         grep "fatal: cannot lock ref '"'"'$c'"'"'" err &&
1151         test_must_fail git rev-parse --verify -q $c
1152 '
1153
1154 test_expect_success 'stdin -z update ref fails with bad old value' '
1155         printf $F "update $c" "$m" "does-not-exist" >stdin &&
1156         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1157         grep "fatal: update $c: invalid <oldvalue>: does-not-exist" err &&
1158         test_must_fail git rev-parse --verify -q $c
1159 '
1160
1161 test_expect_success 'stdin -z create ref fails when ref exists' '
1162         git update-ref $c $m &&
1163         git rev-parse "$c" >expect &&
1164         printf $F "create $c" "$m~1" >stdin &&
1165         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1166         grep "fatal: cannot lock ref '"'"'$c'"'"'" err &&
1167         git rev-parse "$c" >actual &&
1168         test_cmp expect actual
1169 '
1170
1171 test_expect_success 'stdin -z create ref fails with bad new value' '
1172         git update-ref -d "$c" &&
1173         printf $F "create $c" "does-not-exist" >stdin &&
1174         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1175         grep "fatal: create $c: invalid <newvalue>: does-not-exist" err &&
1176         test_must_fail git rev-parse --verify -q $c
1177 '
1178
1179 test_expect_success 'stdin -z create ref fails with empty new value' '
1180         printf $F "create $c" "" >stdin &&
1181         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1182         grep "fatal: create $c: missing <newvalue>" err &&
1183         test_must_fail git rev-parse --verify -q $c
1184 '
1185
1186 test_expect_success 'stdin -z update ref works with right old value' '
1187         printf $F "update $b" "$m~1" "$m" >stdin &&
1188         git update-ref -z --stdin <stdin &&
1189         git rev-parse $m~1 >expect &&
1190         git rev-parse $b >actual &&
1191         test_cmp expect actual
1192 '
1193
1194 test_expect_success 'stdin -z delete ref fails with wrong old value' '
1195         printf $F "delete $a" "$m~1" >stdin &&
1196         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1197         grep "fatal: cannot lock ref '"'"'$a'"'"'" err &&
1198         git rev-parse $m >expect &&
1199         git rev-parse $a >actual &&
1200         test_cmp expect actual
1201 '
1202
1203 test_expect_success 'stdin -z delete ref fails with zero old value' '
1204         printf $F "delete $a" "$Z" >stdin &&
1205         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1206         grep "fatal: delete $a: zero <oldvalue>" err &&
1207         git rev-parse $m >expect &&
1208         git rev-parse $a >actual &&
1209         test_cmp expect actual
1210 '
1211
1212 test_expect_success 'stdin -z update symref works option no-deref' '
1213         git symbolic-ref TESTSYMREF $b &&
1214         printf $F "option no-deref" "update TESTSYMREF" "$a" "$b" >stdin &&
1215         git update-ref -z --stdin <stdin &&
1216         git rev-parse TESTSYMREF >expect &&
1217         git rev-parse $a >actual &&
1218         test_cmp expect actual &&
1219         git rev-parse $m~1 >expect &&
1220         git rev-parse $b >actual &&
1221         test_cmp expect actual
1222 '
1223
1224 test_expect_success 'stdin -z delete symref works option no-deref' '
1225         git symbolic-ref TESTSYMREF $b &&
1226         printf $F "option no-deref" "delete TESTSYMREF" "$b" >stdin &&
1227         git update-ref -z --stdin <stdin &&
1228         test_must_fail git rev-parse --verify -q TESTSYMREF &&
1229         git rev-parse $m~1 >expect &&
1230         git rev-parse $b >actual &&
1231         test_cmp expect actual
1232 '
1233
1234 test_expect_success 'stdin -z delete ref works with right old value' '
1235         printf $F "delete $b" "$m~1" >stdin &&
1236         git update-ref -z --stdin <stdin &&
1237         test_must_fail git rev-parse --verify -q $b
1238 '
1239
1240 test_expect_success 'stdin -z update/create/verify combination works' '
1241         printf $F "update $a" "$m" "" "create $b" "$m" "verify $c" "" >stdin &&
1242         git update-ref -z --stdin <stdin &&
1243         git rev-parse $m >expect &&
1244         git rev-parse $a >actual &&
1245         test_cmp expect actual &&
1246         git rev-parse $b >actual &&
1247         test_cmp expect actual &&
1248         test_must_fail git rev-parse --verify -q $c
1249 '
1250
1251 test_expect_success 'stdin -z verify succeeds for correct value' '
1252         git rev-parse $m >expect &&
1253         printf $F "verify $m" "$m" >stdin &&
1254         git update-ref -z --stdin <stdin &&
1255         git rev-parse $m >actual &&
1256         test_cmp expect actual
1257 '
1258
1259 test_expect_success 'stdin -z verify succeeds for missing reference' '
1260         printf $F "verify refs/heads/missing" "$Z" >stdin &&
1261         git update-ref -z --stdin <stdin &&
1262         test_must_fail git rev-parse --verify -q refs/heads/missing
1263 '
1264
1265 test_expect_success 'stdin -z verify treats no value as missing' '
1266         printf $F "verify refs/heads/missing" "" >stdin &&
1267         git update-ref -z --stdin <stdin &&
1268         test_must_fail git rev-parse --verify -q refs/heads/missing
1269 '
1270
1271 test_expect_success 'stdin -z verify fails for wrong value' '
1272         git rev-parse $m >expect &&
1273         printf $F "verify $m" "$m~1" >stdin &&
1274         test_must_fail git update-ref -z --stdin <stdin &&
1275         git rev-parse $m >actual &&
1276         test_cmp expect actual
1277 '
1278
1279 test_expect_success 'stdin -z verify fails for mistaken null value' '
1280         git rev-parse $m >expect &&
1281         printf $F "verify $m" "$Z" >stdin &&
1282         test_must_fail git update-ref -z --stdin <stdin &&
1283         git rev-parse $m >actual &&
1284         test_cmp expect actual
1285 '
1286
1287 test_expect_success 'stdin -z verify fails for mistaken empty value' '
1288         M=$(git rev-parse $m) &&
1289         test_when_finished "git update-ref $m $M" &&
1290         git rev-parse $m >expect &&
1291         printf $F "verify $m" "" >stdin &&
1292         test_must_fail git update-ref -z --stdin <stdin &&
1293         git rev-parse $m >actual &&
1294         test_cmp expect actual
1295 '
1296
1297 test_expect_success 'stdin -z update refs works with identity updates' '
1298         printf $F "update $a" "$m" "$m" "update $b" "$m" "$m" "update $c" "$Z" "" >stdin &&
1299         git update-ref -z --stdin <stdin &&
1300         git rev-parse $m >expect &&
1301         git rev-parse $a >actual &&
1302         test_cmp expect actual &&
1303         git rev-parse $b >actual &&
1304         test_cmp expect actual &&
1305         test_must_fail git rev-parse --verify -q $c
1306 '
1307
1308 test_expect_success 'stdin -z update refs fails with wrong old value' '
1309         git update-ref $c $m &&
1310         printf $F "update $a" "$m" "$m" "update $b" "$m" "$m" "update $c" "$m" "$Z" >stdin &&
1311         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1312         grep "fatal: cannot lock ref '"'"'$c'"'"'" err &&
1313         git rev-parse $m >expect &&
1314         git rev-parse $a >actual &&
1315         test_cmp expect actual &&
1316         git rev-parse $b >actual &&
1317         test_cmp expect actual &&
1318         git rev-parse $c >actual &&
1319         test_cmp expect actual
1320 '
1321
1322 test_expect_success 'stdin -z delete refs works with packed and loose refs' '
1323         git pack-refs --all &&
1324         git update-ref $c $m~1 &&
1325         printf $F "delete $a" "$m" "update $b" "$Z" "$m" "update $c" "" "$m~1" >stdin &&
1326         git update-ref -z --stdin <stdin &&
1327         test_must_fail git rev-parse --verify -q $a &&
1328         test_must_fail git rev-parse --verify -q $b &&
1329         test_must_fail git rev-parse --verify -q $c
1330 '
1331
1332 test_expect_success 'fails with duplicate HEAD update' '
1333         git branch target1 $A &&
1334         git checkout target1 &&
1335         cat >stdin <<-EOF &&
1336         update refs/heads/target1 $C
1337         option no-deref
1338         update HEAD $B
1339         EOF
1340         test_must_fail git update-ref --stdin <stdin 2>err &&
1341         test_i18ngrep "fatal: multiple updates for '\''HEAD'\'' (including one via its referent .refs/heads/target1.) are not allowed" err &&
1342         echo "refs/heads/target1" >expect &&
1343         git symbolic-ref HEAD >actual &&
1344         test_cmp expect actual &&
1345         echo "$A" >expect &&
1346         git rev-parse refs/heads/target1 >actual &&
1347         test_cmp expect actual
1348 '
1349
1350 test_expect_success 'fails with duplicate ref update via symref' '
1351         git branch target2 $A &&
1352         git symbolic-ref refs/heads/symref2 refs/heads/target2 &&
1353         cat >stdin <<-EOF &&
1354         update refs/heads/target2 $C
1355         update refs/heads/symref2 $B
1356         EOF
1357         test_must_fail git update-ref --stdin <stdin 2>err &&
1358         test_i18ngrep "fatal: multiple updates for '\''refs/heads/target2'\'' (including one via symref .refs/heads/symref2.) are not allowed" err &&
1359         echo "refs/heads/target2" >expect &&
1360         git symbolic-ref refs/heads/symref2 >actual &&
1361         test_cmp expect actual &&
1362         echo "$A" >expect &&
1363         git rev-parse refs/heads/target2 >actual &&
1364         test_cmp expect actual
1365 '
1366
1367 test_expect_success ULIMIT_FILE_DESCRIPTORS 'large transaction creating branches does not burst open file limit' '
1368 (
1369         for i in $(test_seq 33)
1370         do
1371                 echo "create refs/heads/$i HEAD" || exit 1
1372         done >large_input &&
1373         run_with_limited_open_files git update-ref --stdin <large_input &&
1374         git rev-parse --verify -q refs/heads/33
1375 )
1376 '
1377
1378 test_expect_success ULIMIT_FILE_DESCRIPTORS 'large transaction deleting branches does not burst open file limit' '
1379 (
1380         for i in $(test_seq 33)
1381         do
1382                 echo "delete refs/heads/$i HEAD" || exit 1
1383         done >large_input &&
1384         run_with_limited_open_files git update-ref --stdin <large_input &&
1385         test_must_fail git rev-parse --verify -q refs/heads/33
1386 )
1387 '
1388
1389 test_expect_success 'handle per-worktree refs in refs/bisect' '
1390         git commit --allow-empty -m "initial commit" &&
1391         git worktree add -b branch worktree &&
1392         (
1393                 cd worktree &&
1394                 git commit --allow-empty -m "test commit"  &&
1395                 git for-each-ref >for-each-ref.out &&
1396                 ! grep refs/bisect for-each-ref.out &&
1397                 git update-ref refs/bisect/something HEAD &&
1398                 git rev-parse refs/bisect/something >../worktree-head &&
1399                 git for-each-ref | grep refs/bisect/something
1400         ) &&
1401         git show-ref >actual &&
1402         ! grep 'refs/bisect' actual &&
1403         test_must_fail git rev-parse refs/bisect/something &&
1404         git update-ref refs/bisect/something HEAD &&
1405         git rev-parse refs/bisect/something >main-head &&
1406         ! test_cmp main-head worktree-head
1407 '
1408
1409 test_expect_success 'transaction handles empty commit' '
1410         cat >stdin <<-EOF &&
1411         start
1412         prepare
1413         commit
1414         EOF
1415         git update-ref --stdin <stdin >actual &&
1416         printf "%s: ok\n" start prepare commit >expect &&
1417         test_cmp expect actual
1418 '
1419
1420 test_expect_success 'transaction handles empty commit with missing prepare' '
1421         cat >stdin <<-EOF &&
1422         start
1423         commit
1424         EOF
1425         git update-ref --stdin <stdin >actual &&
1426         printf "%s: ok\n" start commit >expect &&
1427         test_cmp expect actual
1428 '
1429
1430 test_expect_success 'transaction handles sole commit' '
1431         cat >stdin <<-EOF &&
1432         commit
1433         EOF
1434         git update-ref --stdin <stdin >actual &&
1435         printf "%s: ok\n" commit >expect &&
1436         test_cmp expect actual
1437 '
1438
1439 test_expect_success 'transaction handles empty abort' '
1440         cat >stdin <<-EOF &&
1441         start
1442         prepare
1443         abort
1444         EOF
1445         git update-ref --stdin <stdin >actual &&
1446         printf "%s: ok\n" start prepare abort >expect &&
1447         test_cmp expect actual
1448 '
1449
1450 test_expect_success 'transaction exits on multiple aborts' '
1451         cat >stdin <<-EOF &&
1452         abort
1453         abort
1454         EOF
1455         test_must_fail git update-ref --stdin <stdin >actual 2>err &&
1456         printf "%s: ok\n" abort >expect &&
1457         test_cmp expect actual &&
1458         grep "fatal: transaction is closed" err
1459 '
1460
1461 test_expect_success 'transaction exits on start after prepare' '
1462         cat >stdin <<-EOF &&
1463         prepare
1464         start
1465         EOF
1466         test_must_fail git update-ref --stdin <stdin 2>err >actual &&
1467         printf "%s: ok\n" prepare >expect &&
1468         test_cmp expect actual &&
1469         grep "fatal: prepared transactions can only be closed" err
1470 '
1471
1472 test_expect_success 'transaction handles empty abort with missing prepare' '
1473         cat >stdin <<-EOF &&
1474         start
1475         abort
1476         EOF
1477         git update-ref --stdin <stdin >actual &&
1478         printf "%s: ok\n" start abort >expect &&
1479         test_cmp expect actual
1480 '
1481
1482 test_expect_success 'transaction handles sole abort' '
1483         cat >stdin <<-EOF &&
1484         abort
1485         EOF
1486         git update-ref --stdin <stdin >actual &&
1487         printf "%s: ok\n" abort >expect &&
1488         test_cmp expect actual
1489 '
1490
1491 test_expect_success 'transaction can handle commit' '
1492         cat >stdin <<-EOF &&
1493         start
1494         create $a HEAD
1495         commit
1496         EOF
1497         git update-ref --stdin <stdin >actual &&
1498         printf "%s: ok\n" start commit >expect &&
1499         test_cmp expect actual &&
1500         git rev-parse HEAD >expect &&
1501         git rev-parse $a >actual &&
1502         test_cmp expect actual
1503 '
1504
1505 test_expect_success 'transaction can handle abort' '
1506         cat >stdin <<-EOF &&
1507         start
1508         create $b HEAD
1509         abort
1510         EOF
1511         git update-ref --stdin <stdin >actual &&
1512         printf "%s: ok\n" start abort >expect &&
1513         test_cmp expect actual &&
1514         test_must_fail git show-ref --verify -q $b
1515 '
1516
1517 test_expect_success 'transaction aborts by default' '
1518         cat >stdin <<-EOF &&
1519         start
1520         create $b HEAD
1521         EOF
1522         git update-ref --stdin <stdin >actual &&
1523         printf "%s: ok\n" start >expect &&
1524         test_cmp expect actual &&
1525         test_must_fail git show-ref --verify -q $b
1526 '
1527
1528 test_expect_success 'transaction with prepare aborts by default' '
1529         cat >stdin <<-EOF &&
1530         start
1531         create $b HEAD
1532         prepare
1533         EOF
1534         git update-ref --stdin <stdin >actual &&
1535         printf "%s: ok\n" start prepare >expect &&
1536         test_cmp expect actual &&
1537         test_must_fail git show-ref --verify -q $b
1538 '
1539
1540 test_expect_success 'transaction can commit multiple times' '
1541         cat >stdin <<-EOF &&
1542         start
1543         create refs/heads/branch-1 $A
1544         commit
1545         start
1546         create refs/heads/branch-2 $B
1547         commit
1548         EOF
1549         git update-ref --stdin <stdin >actual &&
1550         printf "%s: ok\n" start commit start commit >expect &&
1551         test_cmp expect actual &&
1552         echo "$A" >expect &&
1553         git rev-parse refs/heads/branch-1 >actual &&
1554         test_cmp expect actual &&
1555         echo "$B" >expect &&
1556         git rev-parse refs/heads/branch-2 >actual &&
1557         test_cmp expect actual
1558 '
1559
1560 test_expect_success 'transaction can create and delete' '
1561         cat >stdin <<-EOF &&
1562         start
1563         create refs/heads/create-and-delete $A
1564         commit
1565         start
1566         delete refs/heads/create-and-delete $A
1567         commit
1568         EOF
1569         git update-ref --stdin <stdin >actual &&
1570         printf "%s: ok\n" start commit start commit >expect &&
1571         test_must_fail git show-ref --verify refs/heads/create-and-delete
1572 '
1573
1574 test_expect_success 'transaction can commit after abort' '
1575         cat >stdin <<-EOF &&
1576         start
1577         create refs/heads/abort $A
1578         abort
1579         start
1580         create refs/heads/abort $A
1581         commit
1582         EOF
1583         git update-ref --stdin <stdin >actual &&
1584         printf "%s: ok\n" start abort start commit >expect &&
1585         echo "$A" >expect &&
1586         git rev-parse refs/heads/abort >actual &&
1587         test_cmp expect actual
1588 '
1589
1590 test_expect_success 'transaction cannot restart ongoing transaction' '
1591         cat >stdin <<-EOF &&
1592         start
1593         create refs/heads/restart $A
1594         start
1595         commit
1596         EOF
1597         test_must_fail git update-ref --stdin <stdin >actual &&
1598         test_must_fail git show-ref --verify refs/heads/restart
1599 '
1600
1601 test_expect_success PIPE 'transaction flushes status updates' '
1602         mkfifo in out &&
1603         (git update-ref --stdin <in >out &) &&
1604
1605         exec 9>in &&
1606         exec 8<out &&
1607         test_when_finished "exec 9>&-" &&
1608         test_when_finished "exec 8<&-" &&
1609
1610         echo "start" >&9 &&
1611         echo "start: ok" >expected &&
1612         read line <&8 &&
1613         echo "$line" >actual &&
1614         test_cmp expected actual &&
1615
1616         echo "create refs/heads/flush $A" >&9 &&
1617
1618         echo prepare >&9 &&
1619         echo "prepare: ok" >expected &&
1620         read line <&8 &&
1621         echo "$line" >actual &&
1622         test_cmp expected actual &&
1623
1624         # This must now fail given that we have locked the ref.
1625         test_must_fail git update-ref refs/heads/flush $B 2>stderr &&
1626         grep "fatal: update_ref failed for ref ${SQ}refs/heads/flush${SQ}: cannot lock ref" stderr &&
1627
1628         echo commit >&9 &&
1629         echo "commit: ok" >expected &&
1630         read line <&8 &&
1631         echo "$line" >actual &&
1632         test_cmp expected actual
1633 '
1634
1635 test_expect_success 'directory not created deleting packed ref' '
1636         git branch d1/d2/r1 HEAD &&
1637         git pack-refs --all &&
1638         test_path_is_missing .git/refs/heads/d1/d2 &&
1639         git update-ref -d refs/heads/d1/d2/r1 &&
1640         test_path_is_missing .git/refs/heads/d1/d2 &&
1641         test_path_is_missing .git/refs/heads/d1
1642 '
1643
1644 test_done