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=$ZERO_OID
  10
  11 m=refs/heads/master
  12 n_dir=refs/heads/gu
  13 n=$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         create_test_commits "" &&
  31         mkdir $bare &&
  32         cd $bare &&
  33         git init --bare &&
  34         create_test_commits "bare" &&
  35         cd -
  36 '
  37
  38 test_expect_success "create $m" '
  39         git update-ref $m $A &&
  40         test $A = $(git show-ref -s --verify $m)
  41 '
  42 test_expect_success "create $m with oldvalue verification" '
  43         git update-ref $m $B $A &&
  44         test $B = $(git show-ref -s --verify $m)
  45 '
  46 test_expect_success "fail to delete $m with stale ref" '
  47         test_must_fail git update-ref -d $m $A &&
  48         test $B = "$(git show-ref -s --verify $m)"
  49 '
  50 test_expect_success "delete $m" '
  51         test_when_finished "rm -f .git/$m" &&
  52         git update-ref -d $m $B &&
  53         test_path_is_missing .git/$m
  54 '
  55
  56 test_expect_success "delete $m without oldvalue verification" '
  57         test_when_finished "rm -f .git/$m" &&
  58         git update-ref $m $A &&
  59         test $A = $(git show-ref -s --verify $m) &&
  60         git update-ref -d $m &&
  61         test_path_is_missing .git/$m
  62 '
  63
  64 test_expect_success "fail to create $n" '
  65         test_when_finished "rm -f .git/$n_dir" &&
  66         touch .git/$n_dir &&
  67         test_must_fail git update-ref $n $A
  68 '
  69
  70 test_expect_success "create $m (by HEAD)" '
  71         git update-ref HEAD $A &&
  72         test $A = $(git show-ref -s --verify $m)
  73 '
  74 test_expect_success "create $m (by HEAD) with oldvalue verification" '
  75         git update-ref HEAD $B $A &&
  76         test $B = $(git show-ref -s --verify $m)
  77 '
  78 test_expect_success "fail to delete $m (by HEAD) with stale ref" '
  79         test_must_fail git update-ref -d HEAD $A &&
  80         test $B = $(git show-ref -s --verify $m)
  81 '
  82 test_expect_success "delete $m (by HEAD)" '
  83         test_when_finished "rm -f .git/$m" &&
  84         git update-ref -d HEAD $B &&
  85         test_path_is_missing .git/$m
  86 '
  87
  88 test_expect_success "deleting current branch adds message to HEAD's log" '
  89         test_when_finished "rm -f .git/$m" &&
  90         git update-ref $m $A &&
  91         git symbolic-ref HEAD $m &&
  92         git update-ref -m delete-$m -d $m &&
  93         test_path_is_missing .git/$m &&
  94         grep "delete-$m$" .git/logs/HEAD
  95 '
  96
  97 test_expect_success "deleting by HEAD adds message to HEAD's log" '
  98         test_when_finished "rm -f .git/$m" &&
  99         git update-ref $m $A &&
 100         git symbolic-ref HEAD $m &&
 101         git update-ref -m delete-by-head -d HEAD &&
 102         test_path_is_missing .git/$m &&
 103         grep "delete-by-head$" .git/logs/HEAD
 104 '
 105
 106 test_expect_success 'update-ref does not create reflogs by default' '
 107         test_when_finished "git update-ref -d $outside" &&
 108         git update-ref $outside $A &&
 109         git rev-parse $A >expect &&
 110         git rev-parse $outside >actual &&
 111         test_cmp expect actual &&
 112         test_must_fail git reflog exists $outside
 113 '
 114
 115 test_expect_success 'update-ref creates reflogs with --create-reflog' '
 116         test_when_finished "git update-ref -d $outside" &&
 117         git update-ref --create-reflog $outside $A &&
 118         git rev-parse $A >expect &&
 119         git rev-parse $outside >actual &&
 120         test_cmp expect actual &&
 121         git reflog exists $outside
 122 '
 123
 124 test_expect_success 'creates no reflog in bare repository' '
 125         git -C $bare update-ref $m $bareA &&
 126         git -C $bare rev-parse $bareA >expect &&
 127         git -C $bare rev-parse $m >actual &&
 128         test_cmp expect actual &&
 129         test_must_fail git -C $bare reflog exists $m
 130 '
 131
 132 test_expect_success 'core.logAllRefUpdates=true creates reflog in bare repository' '
 133         test_when_finished "git -C $bare config --unset core.logAllRefUpdates && \
 134                 rm $bare/logs/$m" &&
 135         git -C $bare config core.logAllRefUpdates true &&
 136         git -C $bare update-ref $m $bareB &&
 137         git -C $bare rev-parse $bareB >expect &&
 138         git -C $bare rev-parse $m >actual &&
 139         test_cmp expect actual &&
 140         git -C $bare reflog exists $m
 141 '
 142
 143 test_expect_success 'core.logAllRefUpdates=true does not create reflog by default' '
 144         test_config core.logAllRefUpdates true &&
 145         test_when_finished "git update-ref -d $outside" &&
 146         git update-ref $outside $A &&
 147         git rev-parse $A >expect &&
 148         git rev-parse $outside >actual &&
 149         test_cmp expect actual &&
 150         test_must_fail git reflog exists $outside
 151 '
 152
 153 test_expect_success 'core.logAllRefUpdates=always creates reflog by default' '
 154         test_config core.logAllRefUpdates always &&
 155         test_when_finished "git update-ref -d $outside" &&
 156         git update-ref $outside $A &&
 157         git rev-parse $A >expect &&
 158         git rev-parse $outside >actual &&
 159         test_cmp expect actual &&
 160         git reflog exists $outside
 161 '
 162
 163 test_expect_success 'core.logAllRefUpdates=always creates no reflog for ORIG_HEAD' '
 164         test_config core.logAllRefUpdates always &&
 165         git update-ref ORIG_HEAD $A &&
 166         test_must_fail git reflog exists ORIG_HEAD
 167 '
 168
 169 test_expect_success '--no-create-reflog overrides core.logAllRefUpdates=always' '
 170         test_config core.logAllRefUpdates true &&
 171         test_when_finished "git update-ref -d $outside" &&
 172         git update-ref --no-create-reflog $outside $A &&
 173         git rev-parse $A >expect &&
 174         git rev-parse $outside >actual &&
 175         test_cmp expect actual &&
 176         test_must_fail git reflog exists $outside
 177 '
 178
 179 test_expect_success "create $m (by HEAD)" '
 180         git update-ref HEAD $A &&
 181         test $A = $(git show-ref -s --verify $m)
 182 '
 183 test_expect_success 'pack refs' '
 184         git pack-refs --all
 185 '
 186 test_expect_success "move $m (by HEAD)" '
 187         git update-ref HEAD $B $A &&
 188         test $B = $(git show-ref -s --verify $m)
 189 '
 190 test_expect_success "delete $m (by HEAD) should remove both packed and loose $m" '
 191         test_when_finished "rm -f .git/$m" &&
 192         git update-ref -d HEAD $B &&
 193         ! grep "$m" .git/packed-refs &&
 194         test_path_is_missing .git/$m
 195 '
 196
 197 cp -f .git/HEAD .git/HEAD.orig
 198 test_expect_success 'delete symref without dereference' '
 199         test_when_finished "cp -f .git/HEAD.orig .git/HEAD" &&
 200         git update-ref --no-deref -d HEAD &&
 201         test_path_is_missing .git/HEAD
 202 '
 203
 204 test_expect_success 'delete symref without dereference when the referred ref is packed' '
 205         test_when_finished "cp -f .git/HEAD.orig .git/HEAD" &&
 206         echo foo >foo.c &&
 207         git add foo.c &&
 208         git commit -m foo &&
 209         git pack-refs --all &&
 210         git update-ref --no-deref -d HEAD &&
 211         test_path_is_missing .git/HEAD
 212 '
 213
 214 git update-ref -d $m
 215
 216 test_expect_success 'update-ref -d is not confused by self-reference' '
 217         git symbolic-ref refs/heads/self refs/heads/self &&
 218         test_when_finished "rm -f .git/refs/heads/self" &&
 219         test_path_is_file .git/refs/heads/self &&
 220         test_must_fail git update-ref -d refs/heads/self &&
 221         test_path_is_file .git/refs/heads/self
 222 '
 223
 224 test_expect_success 'update-ref --no-deref -d can delete self-reference' '
 225         git symbolic-ref refs/heads/self refs/heads/self &&
 226         test_when_finished "rm -f .git/refs/heads/self" &&
 227         test_path_is_file .git/refs/heads/self &&
 228         git update-ref --no-deref -d refs/heads/self &&
 229         test_path_is_missing .git/refs/heads/self
 230 '
 231
 232 test_expect_success 'update-ref --no-deref -d can delete reference to bad ref' '
 233         >.git/refs/heads/bad &&
 234         test_when_finished "rm -f .git/refs/heads/bad" &&
 235         git symbolic-ref refs/heads/ref-to-bad refs/heads/bad &&
 236         test_when_finished "rm -f .git/refs/heads/ref-to-bad" &&
 237         test_path_is_file .git/refs/heads/ref-to-bad &&
 238         git update-ref --no-deref -d refs/heads/ref-to-bad &&
 239         test_path_is_missing .git/refs/heads/ref-to-bad
 240 '
 241
 242 test_expect_success '(not) create HEAD with old sha1' '
 243         test_must_fail git update-ref HEAD $A $B
 244 '
 245 test_expect_success "(not) prior created .git/$m" '
 246         test_when_finished "rm -f .git/$m" &&
 247         test_path_is_missing .git/$m
 248 '
 249
 250 test_expect_success 'create HEAD' '
 251         git update-ref HEAD $A
 252 '
 253 test_expect_success '(not) change HEAD with wrong SHA1' '
 254         test_must_fail git update-ref HEAD $B $Z
 255 '
 256 test_expect_success "(not) changed .git/$m" '
 257         test_when_finished "rm -f .git/$m" &&
 258         ! test $B = $(git show-ref -s --verify $m)
 259 '
 260
 261 rm -f .git/logs/refs/heads/master
 262 test_expect_success "create $m (logged by touch)" '
 263         test_config core.logAllRefUpdates false &&
 264         GIT_COMMITTER_DATE="2005-05-26 23:30" \
 265         git update-ref --create-reflog HEAD $A -m "Initial Creation" &&
 266         test $A = $(git show-ref -s --verify $m)
 267 '
 268 test_expect_success "update $m (logged by touch)" '
 269         test_config core.logAllRefUpdates false &&
 270         GIT_COMMITTER_DATE="2005-05-26 23:31" \
 271         git update-ref HEAD $B $A -m "Switch" &&
 272         test $B = $(git show-ref -s --verify $m)
 273 '
 274 test_expect_success "set $m (logged by touch)" '
 275         test_config core.logAllRefUpdates false &&
 276         GIT_COMMITTER_DATE="2005-05-26 23:41" \
 277         git update-ref HEAD $A &&
 278         test $A = $(git show-ref -s --verify $m)
 279 '
 280
 281 test_expect_success 'empty directory removal' '
 282         git branch d1/d2/r1 HEAD &&
 283         git branch d1/r2 HEAD &&
 284         test_path_is_file .git/refs/heads/d1/d2/r1 &&
 285         test_path_is_file .git/logs/refs/heads/d1/d2/r1 &&
 286         git branch -d d1/d2/r1 &&
 287         test_path_is_missing .git/refs/heads/d1/d2 &&
 288         test_path_is_missing .git/logs/refs/heads/d1/d2 &&
 289         test_path_is_file .git/refs/heads/d1/r2 &&
 290         test_path_is_file .git/logs/refs/heads/d1/r2
 291 '
 292
 293 test_expect_success 'symref empty directory removal' '
 294         git branch e1/e2/r1 HEAD &&
 295         git branch e1/r2 HEAD &&
 296         git checkout e1/e2/r1 &&
 297         test_when_finished "git checkout master" &&
 298         test_path_is_file .git/refs/heads/e1/e2/r1 &&
 299         test_path_is_file .git/logs/refs/heads/e1/e2/r1 &&
 300         git update-ref -d HEAD &&
 301         test_path_is_missing .git/refs/heads/e1/e2 &&
 302         test_path_is_missing .git/logs/refs/heads/e1/e2 &&
 303         test_path_is_file .git/refs/heads/e1/r2 &&
 304         test_path_is_file .git/logs/refs/heads/e1/r2 &&
 305         test_path_is_file .git/logs/HEAD
 306 '
 307
 308 cat >expect <<EOF
 309 $Z $A $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150200 +0000       Initial Creation
 310 $A $B $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150260 +0000       Switch
 311 $B $A $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150860 +0000
 312 EOF
 313 test_expect_success "verifying $m's log (logged by touch)" '
 314         test_when_finished "rm -rf .git/$m .git/logs expect" &&
 315         test_cmp expect .git/logs/$m
 316 '
 317
 318 test_expect_success "create $m (logged by config)" '
 319         test_config core.logAllRefUpdates true &&
 320         GIT_COMMITTER_DATE="2005-05-26 23:32" \
 321         git update-ref HEAD $A -m "Initial Creation" &&
 322         test $A = $(git show-ref -s --verify $m)
 323 '
 324 test_expect_success "update $m (logged by config)" '
 325         test_config core.logAllRefUpdates true &&
 326         GIT_COMMITTER_DATE="2005-05-26 23:33" \
 327         git update-ref HEAD'" $B $A "'-m "Switch" &&
 328         test $B = $(git show-ref -s --verify $m)
 329 '
 330 test_expect_success "set $m (logged by config)" '
 331         test_config core.logAllRefUpdates true &&
 332         GIT_COMMITTER_DATE="2005-05-26 23:43" \
 333         git update-ref HEAD $A &&
 334         test $A = $(git show-ref -s --verify $m)
 335 '
 336
 337 cat >expect <<EOF
 338 $Z $A $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150320 +0000       Initial Creation
 339 $A $B $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150380 +0000       Switch
 340 $B $A $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150980 +0000
 341 EOF
 342 test_expect_success "verifying $m's log (logged by config)" '
 343         test_when_finished "rm -f .git/$m .git/logs/$m expect" &&
 344         test_cmp expect .git/logs/$m
 345 '
 346
 347 test_expect_success 'set up for querying the reflog' '
 348         git update-ref $m $D &&
 349         cat >.git/logs/$m <<-EOF
 350         $Z $C $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150320 -0500
 351         $C $A $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150350 -0500
 352         $A $B $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150380 -0500
 353         $F $Z $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150680 -0500
 354         $Z $E $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150980 -0500
 355         EOF
 356 '
 357
 358 ed="Thu, 26 May 2005 18:32:00 -0500"
 359 gd="Thu, 26 May 2005 18:33:00 -0500"
 360 ld="Thu, 26 May 2005 18:43:00 -0500"
 361 test_expect_success 'Query "master@{May 25 2005}" (before history)' '
 362         test_when_finished "rm -f o e" &&
 363         git rev-parse --verify "master@{May 25 2005}" >o 2>e &&
 364         echo "$C" >expect &&
 365         test_cmp expect o &&
 366         echo "warning: log for '\''master'\'' only goes back to $ed" >expect &&
 367         test_i18ncmp expect e
 368 '
 369 test_expect_success 'Query master@{2005-05-25} (before history)' '
 370         test_when_finished "rm -f o e" &&
 371         git rev-parse --verify master@{2005-05-25} >o 2>e &&
 372         echo "$C" >expect &&
 373         test_cmp expect o &&
 374         echo "warning: log for '\''master'\'' only goes back to $ed" >expect &&
 375         test_i18ncmp expect e
 376 '
 377 test_expect_success 'Query "master@{May 26 2005 23:31:59}" (1 second before history)' '
 378         test_when_finished "rm -f o e" &&
 379         git rev-parse --verify "master@{May 26 2005 23:31:59}" >o 2>e &&
 380         echo "$C" >expect &&
 381         test_cmp expect o &&
 382         echo "warning: log for '\''master'\'' only goes back to $ed" >expect &&
 383         test_i18ncmp expect e
 384 '
 385 test_expect_success 'Query "master@{May 26 2005 23:32:00}" (exactly history start)' '
 386         test_when_finished "rm -f o e" &&
 387         git rev-parse --verify "master@{May 26 2005 23:32:00}" >o 2>e &&
 388         echo "$C" >expect &&
 389         test_cmp expect o &&
 390         test_must_be_empty e
 391 '
 392 test_expect_success 'Query "master@{May 26 2005 23:32:30}" (first non-creation change)' '
 393         test_when_finished "rm -f o e" &&
 394         git rev-parse --verify "master@{May 26 2005 23:32:30}" >o 2>e &&
 395         echo "$A" >expect &&
 396         test_cmp expect o &&
 397         test_must_be_empty e
 398 '
 399 test_expect_success 'Query "master@{2005-05-26 23:33:01}" (middle of history with gap)' '
 400         test_when_finished "rm -f o e" &&
 401         git rev-parse --verify "master@{2005-05-26 23:33:01}" >o 2>e &&
 402         echo "$B" >expect &&
 403         test_cmp expect o &&
 404         test_i18ngrep -F "warning: log for ref $m has gap after $gd" e
 405 '
 406 test_expect_success 'Query "master@{2005-05-26 23:38:00}" (middle of history)' '
 407         test_when_finished "rm -f o e" &&
 408         git rev-parse --verify "master@{2005-05-26 23:38:00}" >o 2>e &&
 409         echo "$Z" >expect &&
 410         test_cmp expect o &&
 411         test_must_be_empty e
 412 '
 413 test_expect_success 'Query "master@{2005-05-26 23:43:00}" (exact end of history)' '
 414         test_when_finished "rm -f o e" &&
 415         git rev-parse --verify "master@{2005-05-26 23:43:00}" >o 2>e &&
 416         echo "$E" >expect &&
 417         test_cmp expect o &&
 418         test_must_be_empty e
 419 '
 420 test_expect_success 'Query "master@{2005-05-28}" (past end of history)' '
 421         test_when_finished "rm -f o e" &&
 422         git rev-parse --verify "master@{2005-05-28}" >o 2>e &&
 423         echo "$D" >expect &&
 424         test_cmp expect o &&
 425         test_i18ngrep -F "warning: log for ref $m unexpectedly ended on $ld" e
 426 '
 427
 428 rm -f .git/$m .git/logs/$m expect
 429
 430 test_expect_success 'creating initial files' '
 431         test_when_finished rm -f M &&
 432         echo TEST >F &&
 433         git add F &&
 434         GIT_AUTHOR_DATE="2005-05-26 23:30" \
 435         GIT_COMMITTER_DATE="2005-05-26 23:30" git commit -m add -a &&
 436         h_TEST=$(git rev-parse --verify HEAD) &&
 437         echo The other day this did not work. >M &&
 438         echo And then Bob told me how to fix it. >>M &&
 439         echo OTHER >F &&
 440         GIT_AUTHOR_DATE="2005-05-26 23:41" \
 441         GIT_COMMITTER_DATE="2005-05-26 23:41" git commit -F M -a &&
 442         h_OTHER=$(git rev-parse --verify HEAD) &&
 443         GIT_AUTHOR_DATE="2005-05-26 23:44" \
 444         GIT_COMMITTER_DATE="2005-05-26 23:44" git commit --amend &&
 445         h_FIXED=$(git rev-parse --verify HEAD) &&
 446         echo Merged initial commit and a later commit. >M &&
 447         echo $h_TEST >.git/MERGE_HEAD &&
 448         GIT_AUTHOR_DATE="2005-05-26 23:45" \
 449         GIT_COMMITTER_DATE="2005-05-26 23:45" git commit -F M &&
 450         h_MERGED=$(git rev-parse --verify HEAD)
 451 '
 452
 453 cat >expect <<EOF
 454 $Z $h_TEST $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150200 +0000  commit (initial): add
 455 $h_TEST $h_OTHER $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150860 +0000    commit: The other day this did not work.
 456 $h_OTHER $h_FIXED $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117151040 +0000   commit (amend): The other day this did not work.
 457 $h_FIXED $h_MERGED $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117151100 +0000  commit (merge): Merged initial commit and a later commit.
 458 EOF
 459 test_expect_success 'git commit logged updates' '
 460         test_cmp expect .git/logs/$m
 461 '
 462 unset h_TEST h_OTHER h_FIXED h_MERGED
 463
 464 test_expect_success 'git cat-file blob master:F (expect OTHER)' '
 465         test OTHER = $(git cat-file blob master:F)
 466 '
 467 test_expect_success 'git cat-file blob master@{2005-05-26 23:30}:F (expect TEST)' '
 468         test TEST = $(git cat-file blob "master@{2005-05-26 23:30}:F")
 469 '
 470 test_expect_success 'git cat-file blob master@{2005-05-26 23:42}:F (expect OTHER)' '
 471         test OTHER = $(git cat-file blob "master@{2005-05-26 23:42}:F")
 472 '
 473
 474 # Test adding and deleting pseudorefs
 475
 476 test_expect_success 'given old value for missing pseudoref, do not create' '
 477         test_must_fail git update-ref PSEUDOREF $A $B 2>err &&
 478         test_path_is_missing .git/PSEUDOREF &&
 479         test_i18ngrep "could not read ref" err
 480 '
 481
 482 test_expect_success 'create pseudoref' '
 483         git update-ref PSEUDOREF $A &&
 484         test $A = $(cat .git/PSEUDOREF)
 485 '
 486
 487 test_expect_success 'overwrite pseudoref with no old value given' '
 488         git update-ref PSEUDOREF $B &&
 489         test $B = $(cat .git/PSEUDOREF)
 490 '
 491
 492 test_expect_success 'overwrite pseudoref with correct old value' '
 493         git update-ref PSEUDOREF $C $B &&
 494         test $C = $(cat .git/PSEUDOREF)
 495 '
 496
 497 test_expect_success 'do not overwrite pseudoref with wrong old value' '
 498         test_must_fail git update-ref PSEUDOREF $D $E 2>err &&
 499         test $C = $(cat .git/PSEUDOREF) &&
 500         test_i18ngrep "unexpected object ID" err
 501 '
 502
 503 test_expect_success 'delete pseudoref' '
 504         git update-ref -d PSEUDOREF &&
 505         test_path_is_missing .git/PSEUDOREF
 506 '
 507
 508 test_expect_success 'do not delete pseudoref with wrong old value' '
 509         git update-ref PSEUDOREF $A &&
 510         test_must_fail git update-ref -d PSEUDOREF $B 2>err &&
 511         test $A = $(cat .git/PSEUDOREF) &&
 512         test_i18ngrep "unexpected object ID" err
 513 '
 514
 515 test_expect_success 'delete pseudoref with correct old value' '
 516         git update-ref -d PSEUDOREF $A &&
 517         test_path_is_missing .git/PSEUDOREF
 518 '
 519
 520 test_expect_success 'create pseudoref with old OID zero' '
 521         git update-ref PSEUDOREF $A $Z &&
 522         test $A = $(cat .git/PSEUDOREF)
 523 '
 524
 525 test_expect_success 'do not overwrite pseudoref with old OID zero' '
 526         test_when_finished git update-ref -d PSEUDOREF &&
 527         test_must_fail git update-ref PSEUDOREF $B $Z 2>err &&
 528         test $A = $(cat .git/PSEUDOREF) &&
 529         test_i18ngrep "already exists" err
 530 '
 531
 532 # Test --stdin
 533
 534 a=refs/heads/a
 535 b=refs/heads/b
 536 c=refs/heads/c
 537 E='""'
 538 F='%s\0'
 539 pws='path with space'
 540
 541 test_expect_success 'stdin test setup' '
 542         echo "$pws" >"$pws" &&
 543         git add -- "$pws" &&
 544         git commit -m "$pws"
 545 '
 546
 547 test_expect_success '-z fails without --stdin' '
 548         test_must_fail git update-ref -z $m $m $m 2>err &&
 549         test_i18ngrep "usage: git update-ref" err
 550 '
 551
 552 test_expect_success 'stdin works with no input' '
 553         >stdin &&
 554         git update-ref --stdin <stdin &&
 555         git rev-parse --verify -q $m
 556 '
 557
 558 test_expect_success 'stdin fails on empty line' '
 559         echo "" >stdin &&
 560         test_must_fail git update-ref --stdin <stdin 2>err &&
 561         grep "fatal: empty command in input" err
 562 '
 563
 564 test_expect_success 'stdin fails on only whitespace' '
 565         echo " " >stdin &&
 566         test_must_fail git update-ref --stdin <stdin 2>err &&
 567         grep "fatal: whitespace before command:  " err
 568 '
 569
 570 test_expect_success 'stdin fails on leading whitespace' '
 571         echo " create $a $m" >stdin &&
 572         test_must_fail git update-ref --stdin <stdin 2>err &&
 573         grep "fatal: whitespace before command:  create $a $m" err
 574 '
 575
 576 test_expect_success 'stdin fails on unknown command' '
 577         echo "unknown $a" >stdin &&
 578         test_must_fail git update-ref --stdin <stdin 2>err &&
 579         grep "fatal: unknown command: unknown $a" err
 580 '
 581
 582 test_expect_success 'stdin fails on unbalanced quotes' '
 583         echo "create $a \"master" >stdin &&
 584         test_must_fail git update-ref --stdin <stdin 2>err &&
 585         grep "fatal: badly quoted argument: \\\"master" err
 586 '
 587
 588 test_expect_success 'stdin fails on invalid escape' '
 589         echo "create $a \"ma\zter\"" >stdin &&
 590         test_must_fail git update-ref --stdin <stdin 2>err &&
 591         grep "fatal: badly quoted argument: \\\"ma\\\\zter\\\"" err
 592 '
 593
 594 test_expect_success 'stdin fails on junk after quoted argument' '
 595         echo "create \"$a\"master" >stdin &&
 596         test_must_fail git update-ref --stdin <stdin 2>err &&
 597         grep "fatal: unexpected character after quoted argument: \\\"$a\\\"master" err
 598 '
 599
 600 test_expect_success 'stdin fails create with no ref' '
 601         echo "create " >stdin &&
 602         test_must_fail git update-ref --stdin <stdin 2>err &&
 603         grep "fatal: create: missing <ref>" err
 604 '
 605
 606 test_expect_success 'stdin fails create with no new value' '
 607         echo "create $a" >stdin &&
 608         test_must_fail git update-ref --stdin <stdin 2>err &&
 609         grep "fatal: create $a: missing <newvalue>" err
 610 '
 611
 612 test_expect_success 'stdin fails create with too many arguments' '
 613         echo "create $a $m $m" >stdin &&
 614         test_must_fail git update-ref --stdin <stdin 2>err &&
 615         grep "fatal: create $a: extra input:  $m" err
 616 '
 617
 618 test_expect_success 'stdin fails update with no ref' '
 619         echo "update " >stdin &&
 620         test_must_fail git update-ref --stdin <stdin 2>err &&
 621         grep "fatal: update: missing <ref>" err
 622 '
 623
 624 test_expect_success 'stdin fails update with no new value' '
 625         echo "update $a" >stdin &&
 626         test_must_fail git update-ref --stdin <stdin 2>err &&
 627         grep "fatal: update $a: missing <newvalue>" err
 628 '
 629
 630 test_expect_success 'stdin fails update with too many arguments' '
 631         echo "update $a $m $m $m" >stdin &&
 632         test_must_fail git update-ref --stdin <stdin 2>err &&
 633         grep "fatal: update $a: extra input:  $m" err
 634 '
 635
 636 test_expect_success 'stdin fails delete with no ref' '
 637         echo "delete " >stdin &&
 638         test_must_fail git update-ref --stdin <stdin 2>err &&
 639         grep "fatal: delete: missing <ref>" err
 640 '
 641
 642 test_expect_success 'stdin fails delete with too many arguments' '
 643         echo "delete $a $m $m" >stdin &&
 644         test_must_fail git update-ref --stdin <stdin 2>err &&
 645         grep "fatal: delete $a: extra input:  $m" err
 646 '
 647
 648 test_expect_success 'stdin fails verify with too many arguments' '
 649         echo "verify $a $m $m" >stdin &&
 650         test_must_fail git update-ref --stdin <stdin 2>err &&
 651         grep "fatal: verify $a: extra input:  $m" err
 652 '
 653
 654 test_expect_success 'stdin fails option with unknown name' '
 655         echo "option unknown" >stdin &&
 656         test_must_fail git update-ref --stdin <stdin 2>err &&
 657         grep "fatal: option unknown: unknown" err
 658 '
 659
 660 test_expect_success 'stdin fails with duplicate refs' '
 661         cat >stdin <<-EOF &&
 662         create $a $m
 663         create $b $m
 664         create $a $m
 665         EOF
 666         test_must_fail git update-ref --stdin <stdin 2>err &&
 667         test_i18ngrep "fatal: multiple updates for ref '"'"'$a'"'"' not allowed" err
 668 '
 669
 670 test_expect_success 'stdin create ref works' '
 671         echo "create $a $m" >stdin &&
 672         git update-ref --stdin <stdin &&
 673         git rev-parse $m >expect &&
 674         git rev-parse $a >actual &&
 675         test_cmp expect actual
 676 '
 677
 678 test_expect_success 'stdin does not create reflogs by default' '
 679         test_when_finished "git update-ref -d $outside" &&
 680         echo "create $outside $m" >stdin &&
 681         git update-ref --stdin <stdin &&
 682         git rev-parse $m >expect &&
 683         git rev-parse $outside >actual &&
 684         test_cmp expect actual &&
 685         test_must_fail git reflog exists $outside
 686 '
 687
 688 test_expect_success 'stdin creates reflogs with --create-reflog' '
 689         test_when_finished "git update-ref -d $outside" &&
 690         echo "create $outside $m" >stdin &&
 691         git update-ref --create-reflog --stdin <stdin &&
 692         git rev-parse $m >expect &&
 693         git rev-parse $outside >actual &&
 694         test_cmp expect actual &&
 695         git reflog exists $outside
 696 '
 697
 698 test_expect_success 'stdin succeeds with quoted argument' '
 699         git update-ref -d $a &&
 700         echo "create $a \"$m\"" >stdin &&
 701         git update-ref --stdin <stdin &&
 702         git rev-parse $m >expect &&
 703         git rev-parse $a >actual &&
 704         test_cmp expect actual
 705 '
 706
 707 test_expect_success 'stdin succeeds with escaped character' '
 708         git update-ref -d $a &&
 709         echo "create $a \"ma\\163ter\"" >stdin &&
 710         git update-ref --stdin <stdin &&
 711         git rev-parse $m >expect &&
 712         git rev-parse $a >actual &&
 713         test_cmp expect actual
 714 '
 715
 716 test_expect_success 'stdin update ref creates with zero old value' '
 717         echo "update $b $m $Z" >stdin &&
 718         git update-ref --stdin <stdin &&
 719         git rev-parse $m >expect &&
 720         git rev-parse $b >actual &&
 721         test_cmp expect actual &&
 722         git update-ref -d $b
 723 '
 724
 725 test_expect_success 'stdin update ref creates with empty old value' '
 726         echo "update $b $m $E" >stdin &&
 727         git update-ref --stdin <stdin &&
 728         git rev-parse $m >expect &&
 729         git rev-parse $b >actual &&
 730         test_cmp expect actual
 731 '
 732
 733 test_expect_success 'stdin create ref works with path with space to blob' '
 734         echo "create refs/blobs/pws \"$m:$pws\"" >stdin &&
 735         git update-ref --stdin <stdin &&
 736         git rev-parse "$m:$pws" >expect &&
 737         git rev-parse refs/blobs/pws >actual &&
 738         test_cmp expect actual &&
 739         git update-ref -d refs/blobs/pws
 740 '
 741
 742 test_expect_success 'stdin update ref fails with wrong old value' '
 743         echo "update $c $m $m~1" >stdin &&
 744         test_must_fail git update-ref --stdin <stdin 2>err &&
 745         grep "fatal: cannot lock ref '"'"'$c'"'"'" err &&
 746         test_must_fail git rev-parse --verify -q $c
 747 '
 748
 749 test_expect_success 'stdin update ref fails with bad old value' '
 750         echo "update $c $m does-not-exist" >stdin &&
 751         test_must_fail git update-ref --stdin <stdin 2>err &&
 752         grep "fatal: update $c: invalid <oldvalue>: does-not-exist" err &&
 753         test_must_fail git rev-parse --verify -q $c
 754 '
 755
 756 test_expect_success 'stdin create ref fails with bad new value' '
 757         echo "create $c does-not-exist" >stdin &&
 758         test_must_fail git update-ref --stdin <stdin 2>err &&
 759         grep "fatal: create $c: invalid <newvalue>: does-not-exist" err &&
 760         test_must_fail git rev-parse --verify -q $c
 761 '
 762
 763 test_expect_success 'stdin create ref fails with zero new value' '
 764         echo "create $c " >stdin &&
 765         test_must_fail git update-ref --stdin <stdin 2>err &&
 766         grep "fatal: create $c: zero <newvalue>" err &&
 767         test_must_fail git rev-parse --verify -q $c
 768 '
 769
 770 test_expect_success 'stdin update ref works with right old value' '
 771         echo "update $b $m~1 $m" >stdin &&
 772         git update-ref --stdin <stdin &&
 773         git rev-parse $m~1 >expect &&
 774         git rev-parse $b >actual &&
 775         test_cmp expect actual
 776 '
 777
 778 test_expect_success 'stdin delete ref fails with wrong old value' '
 779         echo "delete $a $m~1" >stdin &&
 780         test_must_fail git update-ref --stdin <stdin 2>err &&
 781         grep "fatal: cannot lock ref '"'"'$a'"'"'" err &&
 782         git rev-parse $m >expect &&
 783         git rev-parse $a >actual &&
 784         test_cmp expect actual
 785 '
 786
 787 test_expect_success 'stdin delete ref fails with zero old value' '
 788         echo "delete $a " >stdin &&
 789         test_must_fail git update-ref --stdin <stdin 2>err &&
 790         grep "fatal: delete $a: zero <oldvalue>" err &&
 791         git rev-parse $m >expect &&
 792         git rev-parse $a >actual &&
 793         test_cmp expect actual
 794 '
 795
 796 test_expect_success 'stdin update symref works option no-deref' '
 797         git symbolic-ref TESTSYMREF $b &&
 798         cat >stdin <<-EOF &&
 799         option no-deref
 800         update TESTSYMREF $a $b
 801         EOF
 802         git update-ref --stdin <stdin &&
 803         git rev-parse TESTSYMREF >expect &&
 804         git rev-parse $a >actual &&
 805         test_cmp expect actual &&
 806         git rev-parse $m~1 >expect &&
 807         git rev-parse $b >actual &&
 808         test_cmp expect actual
 809 '
 810
 811 test_expect_success 'stdin delete symref works option no-deref' '
 812         git symbolic-ref TESTSYMREF $b &&
 813         cat >stdin <<-EOF &&
 814         option no-deref
 815         delete TESTSYMREF $b
 816         EOF
 817         git update-ref --stdin <stdin &&
 818         test_must_fail git rev-parse --verify -q TESTSYMREF &&
 819         git rev-parse $m~1 >expect &&
 820         git rev-parse $b >actual &&
 821         test_cmp expect actual
 822 '
 823
 824 test_expect_success 'stdin update symref works flag --no-deref' '
 825         git symbolic-ref TESTSYMREFONE $b &&
 826         git symbolic-ref TESTSYMREFTWO $b &&
 827         cat >stdin <<-EOF &&
 828         update TESTSYMREFONE $a $b
 829         update TESTSYMREFTWO $a $b
 830         EOF
 831         git update-ref --no-deref --stdin <stdin &&
 832         git rev-parse TESTSYMREFONE TESTSYMREFTWO >expect &&
 833         git rev-parse $a $a >actual &&
 834         test_cmp expect actual &&
 835         git rev-parse $m~1 >expect &&
 836         git rev-parse $b >actual &&
 837         test_cmp expect actual
 838 '
 839
 840 test_expect_success 'stdin delete symref works flag --no-deref' '
 841         git symbolic-ref TESTSYMREFONE $b &&
 842         git symbolic-ref TESTSYMREFTWO $b &&
 843         cat >stdin <<-EOF &&
 844         delete TESTSYMREFONE $b
 845         delete TESTSYMREFTWO $b
 846         EOF
 847         git update-ref --no-deref --stdin <stdin &&
 848         test_must_fail git rev-parse --verify -q TESTSYMREFONE &&
 849         test_must_fail git rev-parse --verify -q TESTSYMREFTWO &&
 850         git rev-parse $m~1 >expect &&
 851         git rev-parse $b >actual &&
 852         test_cmp expect actual
 853 '
 854
 855 test_expect_success 'stdin delete ref works with right old value' '
 856         echo "delete $b $m~1" >stdin &&
 857         git update-ref --stdin <stdin &&
 858         test_must_fail git rev-parse --verify -q $b
 859 '
 860
 861 test_expect_success 'stdin update/create/verify combination works' '
 862         cat >stdin <<-EOF &&
 863         update $a $m
 864         create $b $m
 865         verify $c
 866         EOF
 867         git update-ref --stdin <stdin &&
 868         git rev-parse $m >expect &&
 869         git rev-parse $a >actual &&
 870         test_cmp expect actual &&
 871         git rev-parse $b >actual &&
 872         test_cmp expect actual &&
 873         test_must_fail git rev-parse --verify -q $c
 874 '
 875
 876 test_expect_success 'stdin verify succeeds for correct value' '
 877         git rev-parse $m >expect &&
 878         echo "verify $m $m" >stdin &&
 879         git update-ref --stdin <stdin &&
 880         git rev-parse $m >actual &&
 881         test_cmp expect actual
 882 '
 883
 884 test_expect_success 'stdin verify succeeds for missing reference' '
 885         echo "verify refs/heads/missing $Z" >stdin &&
 886         git update-ref --stdin <stdin &&
 887         test_must_fail git rev-parse --verify -q refs/heads/missing
 888 '
 889
 890 test_expect_success 'stdin verify treats no value as missing' '
 891         echo "verify refs/heads/missing" >stdin &&
 892         git update-ref --stdin <stdin &&
 893         test_must_fail git rev-parse --verify -q refs/heads/missing
 894 '
 895
 896 test_expect_success 'stdin verify fails for wrong value' '
 897         git rev-parse $m >expect &&
 898         echo "verify $m $m~1" >stdin &&
 899         test_must_fail git update-ref --stdin <stdin &&
 900         git rev-parse $m >actual &&
 901         test_cmp expect actual
 902 '
 903
 904 test_expect_success 'stdin verify fails for mistaken null value' '
 905         git rev-parse $m >expect &&
 906         echo "verify $m $Z" >stdin &&
 907         test_must_fail git update-ref --stdin <stdin &&
 908         git rev-parse $m >actual &&
 909         test_cmp expect actual
 910 '
 911
 912 test_expect_success 'stdin verify fails for mistaken empty value' '
 913         M=$(git rev-parse $m) &&
 914         test_when_finished "git update-ref $m $M" &&
 915         git rev-parse $m >expect &&
 916         echo "verify $m" >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 update refs works with identity updates' '
 923         cat >stdin <<-EOF &&
 924         update $a $m $m
 925         update $b $m $m
 926         update $c $Z $E
 927         EOF
 928         git update-ref --stdin <stdin &&
 929         git rev-parse $m >expect &&
 930         git rev-parse $a >actual &&
 931         test_cmp expect actual &&
 932         git rev-parse $b >actual &&
 933         test_cmp expect actual &&
 934         test_must_fail git rev-parse --verify -q $c
 935 '
 936
 937 test_expect_success 'stdin update refs fails with wrong old value' '
 938         git update-ref $c $m &&
 939         cat >stdin <<-EOF &&
 940         update $a $m $m
 941         update $b $m $m
 942         update $c  ''
 943         EOF
 944         test_must_fail git update-ref --stdin <stdin 2>err &&
 945         grep "fatal: cannot lock ref '"'"'$c'"'"'" err &&
 946         git rev-parse $m >expect &&
 947         git rev-parse $a >actual &&
 948         test_cmp expect actual &&
 949         git rev-parse $b >actual &&
 950         test_cmp expect actual &&
 951         git rev-parse $c >actual &&
 952         test_cmp expect actual
 953 '
 954
 955 test_expect_success 'stdin delete refs works with packed and loose refs' '
 956         git pack-refs --all &&
 957         git update-ref $c $m~1 &&
 958         cat >stdin <<-EOF &&
 959         delete $a $m
 960         update $b $Z $m
 961         update $c $E $m~1
 962         EOF
 963         git update-ref --stdin <stdin &&
 964         test_must_fail git rev-parse --verify -q $a &&
 965         test_must_fail git rev-parse --verify -q $b &&
 966         test_must_fail git rev-parse --verify -q $c
 967 '
 968
 969 test_expect_success 'stdin -z works on empty input' '
 970         >stdin &&
 971         git update-ref -z --stdin <stdin &&
 972         git rev-parse --verify -q $m
 973 '
 974
 975 test_expect_success 'stdin -z fails on empty line' '
 976         echo "" >stdin &&
 977         test_must_fail git update-ref -z --stdin <stdin 2>err &&
 978         grep "fatal: whitespace before command: " err
 979 '
 980
 981 test_expect_success 'stdin -z fails on empty command' '
 982         printf $F "" >stdin &&
 983         test_must_fail git update-ref -z --stdin <stdin 2>err &&
 984         grep "fatal: empty command in input" err
 985 '
 986
 987 test_expect_success 'stdin -z fails on only whitespace' '
 988         printf $F " " >stdin &&
 989         test_must_fail git update-ref -z --stdin <stdin 2>err &&
 990         grep "fatal: whitespace before command:  " err
 991 '
 992
 993 test_expect_success 'stdin -z fails on leading whitespace' '
 994         printf $F " create $a" "$m" >stdin &&
 995         test_must_fail git update-ref -z --stdin <stdin 2>err &&
 996         grep "fatal: whitespace before command:  create $a" err
 997 '
 998
 999 test_expect_success 'stdin -z fails on unknown command' '
1000         printf $F "unknown $a" >stdin &&
1001         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1002         grep "fatal: unknown command: unknown $a" err
1003 '
1004
1005 test_expect_success 'stdin -z fails create with no ref' '
1006         printf $F "create " >stdin &&
1007         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1008         grep "fatal: create: missing <ref>" err
1009 '
1010
1011 test_expect_success 'stdin -z fails create with no new value' '
1012         printf $F "create $a" >stdin &&
1013         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1014         grep "fatal: create $a: unexpected end of input when reading <newvalue>" err
1015 '
1016
1017 test_expect_success 'stdin -z fails create with too many arguments' '
1018         printf $F "create $a" "$m" "$m" >stdin &&
1019         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1020         grep "fatal: unknown command: $m" err
1021 '
1022
1023 test_expect_success 'stdin -z fails update with no ref' '
1024         printf $F "update " >stdin &&
1025         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1026         grep "fatal: update: missing <ref>" err
1027 '
1028
1029 test_expect_success 'stdin -z fails update with too few args' '
1030         printf $F "update $a" "$m" >stdin &&
1031         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1032         grep "fatal: update $a: unexpected end of input when reading <oldvalue>" err
1033 '
1034
1035 test_expect_success 'stdin -z emits warning with empty new value' '
1036         git update-ref $a $m &&
1037         printf $F "update $a" "" "" >stdin &&
1038         git update-ref -z --stdin <stdin 2>err &&
1039         grep "warning: update $a: missing <newvalue>, treating as zero" err &&
1040         test_must_fail git rev-parse --verify -q $a
1041 '
1042
1043 test_expect_success 'stdin -z fails update with no new value' '
1044         printf $F "update $a" >stdin &&
1045         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1046         grep "fatal: update $a: unexpected end of input when reading <newvalue>" err
1047 '
1048
1049 test_expect_success 'stdin -z fails update with no old value' '
1050         printf $F "update $a" "$m" >stdin &&
1051         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1052         grep "fatal: update $a: unexpected end of input when reading <oldvalue>" err
1053 '
1054
1055 test_expect_success 'stdin -z fails update with too many arguments' '
1056         printf $F "update $a" "$m" "$m" "$m" >stdin &&
1057         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1058         grep "fatal: unknown command: $m" err
1059 '
1060
1061 test_expect_success 'stdin -z fails delete with no ref' '
1062         printf $F "delete " >stdin &&
1063         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1064         grep "fatal: delete: missing <ref>" err
1065 '
1066
1067 test_expect_success 'stdin -z fails delete with no old value' '
1068         printf $F "delete $a" >stdin &&
1069         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1070         grep "fatal: delete $a: unexpected end of input when reading <oldvalue>" err
1071 '
1072
1073 test_expect_success 'stdin -z fails delete with too many arguments' '
1074         printf $F "delete $a" "$m" "$m" >stdin &&
1075         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1076         grep "fatal: unknown command: $m" err
1077 '
1078
1079 test_expect_success 'stdin -z fails verify with too many arguments' '
1080         printf $F "verify $a" "$m" "$m" >stdin &&
1081         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1082         grep "fatal: unknown command: $m" err
1083 '
1084
1085 test_expect_success 'stdin -z fails verify with no old value' '
1086         printf $F "verify $a" >stdin &&
1087         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1088         grep "fatal: verify $a: unexpected end of input when reading <oldvalue>" err
1089 '
1090
1091 test_expect_success 'stdin -z fails option with unknown name' '
1092         printf $F "option unknown" >stdin &&
1093         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1094         grep "fatal: option unknown: unknown" err
1095 '
1096
1097 test_expect_success 'stdin -z fails with duplicate refs' '
1098         printf $F "create $a" "$m" "create $b" "$m" "create $a" "$m" >stdin &&
1099         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1100         test_i18ngrep "fatal: multiple updates for ref '"'"'$a'"'"' not allowed" err
1101 '
1102
1103 test_expect_success 'stdin -z create ref works' '
1104         printf $F "create $a" "$m" >stdin &&
1105         git update-ref -z --stdin <stdin &&
1106         git rev-parse $m >expect &&
1107         git rev-parse $a >actual &&
1108         test_cmp expect actual
1109 '
1110
1111 test_expect_success 'stdin -z update ref creates with zero old value' '
1112         printf $F "update $b" "$m" "$Z" >stdin &&
1113         git update-ref -z --stdin <stdin &&
1114         git rev-parse $m >expect &&
1115         git rev-parse $b >actual &&
1116         test_cmp expect actual &&
1117         git update-ref -d $b
1118 '
1119
1120 test_expect_success 'stdin -z update ref creates with empty old value' '
1121         printf $F "update $b" "$m" "" >stdin &&
1122         git update-ref -z --stdin <stdin &&
1123         git rev-parse $m >expect &&
1124         git rev-parse $b >actual &&
1125         test_cmp expect actual
1126 '
1127
1128 test_expect_success 'stdin -z create ref works with path with space to blob' '
1129         printf $F "create refs/blobs/pws" "$m:$pws" >stdin &&
1130         git update-ref -z --stdin <stdin &&
1131         git rev-parse "$m:$pws" >expect &&
1132         git rev-parse refs/blobs/pws >actual &&
1133         test_cmp expect actual &&
1134         git update-ref -d refs/blobs/pws
1135 '
1136
1137 test_expect_success 'stdin -z update ref fails with wrong old value' '
1138         printf $F "update $c" "$m" "$m~1" >stdin &&
1139         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1140         grep "fatal: cannot lock ref '"'"'$c'"'"'" err &&
1141         test_must_fail git rev-parse --verify -q $c
1142 '
1143
1144 test_expect_success 'stdin -z update ref fails with bad old value' '
1145         printf $F "update $c" "$m" "does-not-exist" >stdin &&
1146         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1147         grep "fatal: update $c: invalid <oldvalue>: does-not-exist" err &&
1148         test_must_fail git rev-parse --verify -q $c
1149 '
1150
1151 test_expect_success 'stdin -z create ref fails when ref exists' '
1152         git update-ref $c $m &&
1153         git rev-parse "$c" >expect &&
1154         printf $F "create $c" "$m~1" >stdin &&
1155         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1156         grep "fatal: cannot lock ref '"'"'$c'"'"'" err &&
1157         git rev-parse "$c" >actual &&
1158         test_cmp expect actual
1159 '
1160
1161 test_expect_success 'stdin -z create ref fails with bad new value' '
1162         git update-ref -d "$c" &&
1163         printf $F "create $c" "does-not-exist" >stdin &&
1164         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1165         grep "fatal: create $c: invalid <newvalue>: does-not-exist" err &&
1166         test_must_fail git rev-parse --verify -q $c
1167 '
1168
1169 test_expect_success 'stdin -z create ref fails with empty new value' '
1170         printf $F "create $c" "" >stdin &&
1171         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1172         grep "fatal: create $c: missing <newvalue>" err &&
1173         test_must_fail git rev-parse --verify -q $c
1174 '
1175
1176 test_expect_success 'stdin -z update ref works with right old value' '
1177         printf $F "update $b" "$m~1" "$m" >stdin &&
1178         git update-ref -z --stdin <stdin &&
1179         git rev-parse $m~1 >expect &&
1180         git rev-parse $b >actual &&
1181         test_cmp expect actual
1182 '
1183
1184 test_expect_success 'stdin -z delete ref fails with wrong old value' '
1185         printf $F "delete $a" "$m~1" >stdin &&
1186         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1187         grep "fatal: cannot lock ref '"'"'$a'"'"'" err &&
1188         git rev-parse $m >expect &&
1189         git rev-parse $a >actual &&
1190         test_cmp expect actual
1191 '
1192
1193 test_expect_success 'stdin -z delete ref fails with zero old value' '
1194         printf $F "delete $a" "$Z" >stdin &&
1195         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1196         grep "fatal: delete $a: zero <oldvalue>" err &&
1197         git rev-parse $m >expect &&
1198         git rev-parse $a >actual &&
1199         test_cmp expect actual
1200 '
1201
1202 test_expect_success 'stdin -z update symref works option no-deref' '
1203         git symbolic-ref TESTSYMREF $b &&
1204         printf $F "option no-deref" "update TESTSYMREF" "$a" "$b" >stdin &&
1205         git update-ref -z --stdin <stdin &&
1206         git rev-parse TESTSYMREF >expect &&
1207         git rev-parse $a >actual &&
1208         test_cmp expect actual &&
1209         git rev-parse $m~1 >expect &&
1210         git rev-parse $b >actual &&
1211         test_cmp expect actual
1212 '
1213
1214 test_expect_success 'stdin -z delete symref works option no-deref' '
1215         git symbolic-ref TESTSYMREF $b &&
1216         printf $F "option no-deref" "delete TESTSYMREF" "$b" >stdin &&
1217         git update-ref -z --stdin <stdin &&
1218         test_must_fail git rev-parse --verify -q TESTSYMREF &&
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 ref works with right old value' '
1225         printf $F "delete $b" "$m~1" >stdin &&
1226         git update-ref -z --stdin <stdin &&
1227         test_must_fail git rev-parse --verify -q $b
1228 '
1229
1230 test_expect_success 'stdin -z update/create/verify combination works' '
1231         printf $F "update $a" "$m" "" "create $b" "$m" "verify $c" "" >stdin &&
1232         git update-ref -z --stdin <stdin &&
1233         git rev-parse $m >expect &&
1234         git rev-parse $a >actual &&
1235         test_cmp expect actual &&
1236         git rev-parse $b >actual &&
1237         test_cmp expect actual &&
1238         test_must_fail git rev-parse --verify -q $c
1239 '
1240
1241 test_expect_success 'stdin -z verify succeeds for correct value' '
1242         git rev-parse $m >expect &&
1243         printf $F "verify $m" "$m" >stdin &&
1244         git update-ref -z --stdin <stdin &&
1245         git rev-parse $m >actual &&
1246         test_cmp expect actual
1247 '
1248
1249 test_expect_success 'stdin -z verify succeeds for missing reference' '
1250         printf $F "verify refs/heads/missing" "$Z" >stdin &&
1251         git update-ref -z --stdin <stdin &&
1252         test_must_fail git rev-parse --verify -q refs/heads/missing
1253 '
1254
1255 test_expect_success 'stdin -z verify treats no value as missing' '
1256         printf $F "verify refs/heads/missing" "" >stdin &&
1257         git update-ref -z --stdin <stdin &&
1258         test_must_fail git rev-parse --verify -q refs/heads/missing
1259 '
1260
1261 test_expect_success 'stdin -z verify fails for wrong value' '
1262         git rev-parse $m >expect &&
1263         printf $F "verify $m" "$m~1" >stdin &&
1264         test_must_fail git update-ref -z --stdin <stdin &&
1265         git rev-parse $m >actual &&
1266         test_cmp expect actual
1267 '
1268
1269 test_expect_success 'stdin -z verify fails for mistaken null value' '
1270         git rev-parse $m >expect &&
1271         printf $F "verify $m" "$Z" >stdin &&
1272         test_must_fail git update-ref -z --stdin <stdin &&
1273         git rev-parse $m >actual &&
1274         test_cmp expect actual
1275 '
1276
1277 test_expect_success 'stdin -z verify fails for mistaken empty value' '
1278         M=$(git rev-parse $m) &&
1279         test_when_finished "git update-ref $m $M" &&
1280         git rev-parse $m >expect &&
1281         printf $F "verify $m" "" >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 update refs works with identity updates' '
1288         printf $F "update $a" "$m" "$m" "update $b" "$m" "$m" "update $c" "$Z" "" >stdin &&
1289         git update-ref -z --stdin <stdin &&
1290         git rev-parse $m >expect &&
1291         git rev-parse $a >actual &&
1292         test_cmp expect actual &&
1293         git rev-parse $b >actual &&
1294         test_cmp expect actual &&
1295         test_must_fail git rev-parse --verify -q $c
1296 '
1297
1298 test_expect_success 'stdin -z update refs fails with wrong old value' '
1299         git update-ref $c $m &&
1300         printf $F "update $a" "$m" "$m" "update $b" "$m" "$m" "update $c" "$m" "$Z" >stdin &&
1301         test_must_fail git update-ref -z --stdin <stdin 2>err &&
1302         grep "fatal: cannot lock ref '"'"'$c'"'"'" err &&
1303         git rev-parse $m >expect &&
1304         git rev-parse $a >actual &&
1305         test_cmp expect actual &&
1306         git rev-parse $b >actual &&
1307         test_cmp expect actual &&
1308         git rev-parse $c >actual &&
1309         test_cmp expect actual
1310 '
1311
1312 test_expect_success 'stdin -z delete refs works with packed and loose refs' '
1313         git pack-refs --all &&
1314         git update-ref $c $m~1 &&
1315         printf $F "delete $a" "$m" "update $b" "$Z" "$m" "update $c" "" "$m~1" >stdin &&
1316         git update-ref -z --stdin <stdin &&
1317         test_must_fail git rev-parse --verify -q $a &&
1318         test_must_fail git rev-parse --verify -q $b &&
1319         test_must_fail git rev-parse --verify -q $c
1320 '
1321
1322 test_expect_success 'fails with duplicate HEAD update' '
1323         git branch target1 $A &&
1324         git checkout target1 &&
1325         cat >stdin <<-EOF &&
1326         update refs/heads/target1 $C
1327         option no-deref
1328         update HEAD $B
1329         EOF
1330         test_must_fail git update-ref --stdin <stdin 2>err &&
1331         test_i18ngrep "fatal: multiple updates for '\''HEAD'\'' (including one via its referent .refs/heads/target1.) are not allowed" err &&
1332         echo "refs/heads/target1" >expect &&
1333         git symbolic-ref HEAD >actual &&
1334         test_cmp expect actual &&
1335         echo "$A" >expect &&
1336         git rev-parse refs/heads/target1 >actual &&
1337         test_cmp expect actual
1338 '
1339
1340 test_expect_success 'fails with duplicate ref update via symref' '
1341         git branch target2 $A &&
1342         git symbolic-ref refs/heads/symref2 refs/heads/target2 &&
1343         cat >stdin <<-EOF &&
1344         update refs/heads/target2 $C
1345         update refs/heads/symref2 $B
1346         EOF
1347         test_must_fail git update-ref --stdin <stdin 2>err &&
1348         test_i18ngrep "fatal: multiple updates for '\''refs/heads/target2'\'' (including one via symref .refs/heads/symref2.) are not allowed" err &&
1349         echo "refs/heads/target2" >expect &&
1350         git symbolic-ref refs/heads/symref2 >actual &&
1351         test_cmp expect actual &&
1352         echo "$A" >expect &&
1353         git rev-parse refs/heads/target2 >actual &&
1354         test_cmp expect actual
1355 '
1356
1357 test_expect_success ULIMIT_FILE_DESCRIPTORS 'large transaction creating branches does not burst open file limit' '
1358 (
1359         for i in $(test_seq 33)
1360         do
1361                 echo "create refs/heads/$i HEAD"
1362         done >large_input &&
1363         run_with_limited_open_files git update-ref --stdin <large_input &&
1364         git rev-parse --verify -q refs/heads/33
1365 )
1366 '
1367
1368 test_expect_success ULIMIT_FILE_DESCRIPTORS 'large transaction deleting branches does not burst open file limit' '
1369 (
1370         for i in $(test_seq 33)
1371         do
1372                 echo "delete refs/heads/$i HEAD"
1373         done >large_input &&
1374         run_with_limited_open_files git update-ref --stdin <large_input &&
1375         test_must_fail git rev-parse --verify -q refs/heads/33
1376 )
1377 '
1378
1379 test_expect_success 'handle per-worktree refs in refs/bisect' '
1380         git commit --allow-empty -m "initial commit" &&
1381         git worktree add -b branch worktree &&
1382         (
1383                 cd worktree &&
1384                 git commit --allow-empty -m "test commit"  &&
1385                 git for-each-ref >for-each-ref.out &&
1386                 ! grep refs/bisect for-each-ref.out &&
1387                 git update-ref refs/bisect/something HEAD &&
1388                 git rev-parse refs/bisect/something >../worktree-head &&
1389                 git for-each-ref | grep refs/bisect/something
1390         ) &&
1391         test_path_is_missing .git/refs/bisect &&
1392         test_must_fail git rev-parse refs/bisect/something &&
1393         git update-ref refs/bisect/something HEAD &&
1394         git rev-parse refs/bisect/something >main-head &&
1395         ! test_cmp main-head worktree-head
1396 '
1397
1398 test_expect_success 'transaction handles empty commit' '
1399         cat >stdin <<-EOF &&
1400         start
1401         prepare
1402         commit
1403         EOF
1404         git update-ref --stdin <stdin >actual &&
1405         printf "%s: ok\n" start prepare commit >expect &&
1406         test_cmp expect actual
1407 '
1408
1409 test_expect_success 'transaction handles empty commit with missing prepare' '
1410         cat >stdin <<-EOF &&
1411         start
1412         commit
1413         EOF
1414         git update-ref --stdin <stdin >actual &&
1415         printf "%s: ok\n" start commit >expect &&
1416         test_cmp expect actual
1417 '
1418
1419 test_expect_success 'transaction handles sole commit' '
1420         cat >stdin <<-EOF &&
1421         commit
1422         EOF
1423         git update-ref --stdin <stdin >actual &&
1424         printf "%s: ok\n" commit >expect &&
1425         test_cmp expect actual
1426 '
1427
1428 test_expect_success 'transaction handles empty abort' '
1429         cat >stdin <<-EOF &&
1430         start
1431         prepare
1432         abort
1433         EOF
1434         git update-ref --stdin <stdin >actual &&
1435         printf "%s: ok\n" start prepare abort >expect &&
1436         test_cmp expect actual
1437 '
1438
1439 test_expect_success 'transaction exits on multiple aborts' '
1440         cat >stdin <<-EOF &&
1441         abort
1442         abort
1443         EOF
1444         test_must_fail git update-ref --stdin <stdin >actual 2>err &&
1445         printf "%s: ok\n" abort >expect &&
1446         test_cmp expect actual &&
1447         grep "fatal: transaction is closed" err
1448 '
1449
1450 test_expect_success 'transaction exits on start after prepare' '
1451         cat >stdin <<-EOF &&
1452         prepare
1453         start
1454         EOF
1455         test_must_fail git update-ref --stdin <stdin 2>err >actual &&
1456         printf "%s: ok\n" prepare >expect &&
1457         test_cmp expect actual &&
1458         grep "fatal: prepared transactions can only be closed" err
1459 '
1460
1461 test_expect_success 'transaction handles empty abort with missing prepare' '
1462         cat >stdin <<-EOF &&
1463         start
1464         abort
1465         EOF
1466         git update-ref --stdin <stdin >actual &&
1467         printf "%s: ok\n" start abort >expect &&
1468         test_cmp expect actual
1469 '
1470
1471 test_expect_success 'transaction handles sole abort' '
1472         cat >stdin <<-EOF &&
1473         abort
1474         EOF
1475         git update-ref --stdin <stdin >actual &&
1476         printf "%s: ok\n" abort >expect &&
1477         test_cmp expect actual
1478 '
1479
1480 test_expect_success 'transaction can handle commit' '
1481         cat >stdin <<-EOF &&
1482         start
1483         create $a HEAD
1484         commit
1485         EOF
1486         git update-ref --stdin <stdin >actual &&
1487         printf "%s: ok\n" start commit >expect &&
1488         test_cmp expect actual &&
1489         git rev-parse HEAD >expect &&
1490         git rev-parse $a >actual &&
1491         test_cmp expect actual
1492 '
1493
1494 test_expect_success 'transaction can handle abort' '
1495         cat >stdin <<-EOF &&
1496         start
1497         create $b HEAD
1498         abort
1499         EOF
1500         git update-ref --stdin <stdin >actual &&
1501         printf "%s: ok\n" start abort >expect &&
1502         test_cmp expect actual &&
1503         test_path_is_missing .git/$b
1504 '
1505
1506 test_expect_success 'transaction aborts by default' '
1507         cat >stdin <<-EOF &&
1508         start
1509         create $b HEAD
1510         EOF
1511         git update-ref --stdin <stdin >actual &&
1512         printf "%s: ok\n" start >expect &&
1513         test_cmp expect actual &&
1514         test_path_is_missing .git/$b
1515 '
1516
1517 test_expect_success 'transaction with prepare aborts by default' '
1518         cat >stdin <<-EOF &&
1519         start
1520         create $b HEAD
1521         prepare
1522         EOF
1523         git update-ref --stdin <stdin >actual &&
1524         printf "%s: ok\n" start prepare >expect &&
1525         test_cmp expect actual &&
1526         test_path_is_missing .git/$b
1527 '
1528
1529 test_done