t/t0410-partial-clone.sh

   1 #!/bin/sh
   2
   3 test_description='partial clone'
   4
   5 . ./test-lib.sh
   6
   7 delete_object () {
   8         rm $1/.git/objects/$(echo $2 | sed -e 's|^..|&/|')
   9 }
  10
  11 pack_as_from_promisor () {
  12         HASH=$(git -C repo pack-objects .git/objects/pack/pack) &&
  13         >repo/.git/objects/pack/pack-$HASH.promisor &&
  14         echo $HASH
  15 }
  16
  17 promise_and_delete () {
  18         HASH=$(git -C repo rev-parse "$1") &&
  19         git -C repo tag -a -m message my_annotated_tag "$HASH" &&
  20         git -C repo rev-parse my_annotated_tag | pack_as_from_promisor &&
  21         # tag -d prints a message to stdout, so redirect it
  22         git -C repo tag -d my_annotated_tag >/dev/null &&
  23         delete_object repo "$HASH"
  24 }
  25
  26 test_expect_success 'extensions.partialclone without filter' '
  27         test_create_repo server &&
  28         git clone --filter="blob:none" "file://$(pwd)/server" client &&
  29         git -C client config --unset remote.origin.partialclonefilter &&
  30         git -C client fetch origin
  31 '
  32
  33 test_expect_success 'missing reflog object, but promised by a commit, passes fsck' '
  34         rm -rf repo &&
  35         test_create_repo repo &&
  36         test_commit -C repo my_commit &&
  37
  38         A=$(git -C repo commit-tree -m a HEAD^{tree}) &&
  39         C=$(git -C repo commit-tree -m c -p $A HEAD^{tree}) &&
  40
  41         # Reference $A only from reflog, and delete it
  42         git -C repo branch my_branch "$A" &&
  43         git -C repo branch -f my_branch my_commit &&
  44         delete_object repo "$A" &&
  45
  46         # State that we got $C, which refers to $A, from promisor
  47         printf "$C\n" | pack_as_from_promisor &&
  48
  49         # Normally, it fails
  50         test_must_fail git -C repo fsck &&
  51
  52         # But with the extension, it succeeds
  53         git -C repo config core.repositoryformatversion 1 &&
  54         git -C repo config extensions.partialclone "arbitrary string" &&
  55         git -C repo fsck
  56 '
  57
  58 test_expect_success 'missing reflog object, but promised by a tag, passes fsck' '
  59         rm -rf repo &&
  60         test_create_repo repo &&
  61         test_commit -C repo my_commit &&
  62
  63         A=$(git -C repo commit-tree -m a HEAD^{tree}) &&
  64         git -C repo tag -a -m d my_tag_name $A &&
  65         T=$(git -C repo rev-parse my_tag_name) &&
  66         git -C repo tag -d my_tag_name &&
  67
  68         # Reference $A only from reflog, and delete it
  69         git -C repo branch my_branch "$A" &&
  70         git -C repo branch -f my_branch my_commit &&
  71         delete_object repo "$A" &&
  72
  73         # State that we got $T, which refers to $A, from promisor
  74         printf "$T\n" | pack_as_from_promisor &&
  75
  76         git -C repo config core.repositoryformatversion 1 &&
  77         git -C repo config extensions.partialclone "arbitrary string" &&
  78         git -C repo fsck
  79 '
  80
  81 test_expect_success 'missing reflog object alone fails fsck, even with extension set' '
  82         rm -rf repo &&
  83         test_create_repo repo &&
  84         test_commit -C repo my_commit &&
  85
  86         A=$(git -C repo commit-tree -m a HEAD^{tree}) &&
  87         B=$(git -C repo commit-tree -m b HEAD^{tree}) &&
  88
  89         # Reference $A only from reflog, and delete it
  90         git -C repo branch my_branch "$A" &&
  91         git -C repo branch -f my_branch my_commit &&
  92         delete_object repo "$A" &&
  93
  94         git -C repo config core.repositoryformatversion 1 &&
  95         git -C repo config extensions.partialclone "arbitrary string" &&
  96         test_must_fail git -C repo fsck
  97 '
  98
  99 test_expect_success 'missing ref object, but promised, passes fsck' '
 100         rm -rf repo &&
 101         test_create_repo repo &&
 102         test_commit -C repo my_commit &&
 103
 104         A=$(git -C repo commit-tree -m a HEAD^{tree}) &&
 105
 106         # Reference $A only from ref
 107         git -C repo branch my_branch "$A" &&
 108         promise_and_delete "$A" &&
 109
 110         git -C repo config core.repositoryformatversion 1 &&
 111         git -C repo config extensions.partialclone "arbitrary string" &&
 112         git -C repo fsck
 113 '
 114
 115 test_expect_success 'missing object, but promised, passes fsck' '
 116         rm -rf repo &&
 117         test_create_repo repo &&
 118         test_commit -C repo 1 &&
 119         test_commit -C repo 2 &&
 120         test_commit -C repo 3 &&
 121         git -C repo tag -a annotated_tag -m "annotated tag" &&
 122
 123         C=$(git -C repo rev-parse 1) &&
 124         T=$(git -C repo rev-parse 2^{tree}) &&
 125         B=$(git hash-object repo/3.t) &&
 126         AT=$(git -C repo rev-parse annotated_tag) &&
 127
 128         promise_and_delete "$C" &&
 129         promise_and_delete "$T" &&
 130         promise_and_delete "$B" &&
 131         promise_and_delete "$AT" &&
 132
 133         git -C repo config core.repositoryformatversion 1 &&
 134         git -C repo config extensions.partialclone "arbitrary string" &&
 135         git -C repo fsck
 136 '
 137
 138 test_expect_success 'missing CLI object, but promised, passes fsck' '
 139         rm -rf repo &&
 140         test_create_repo repo &&
 141         test_commit -C repo my_commit &&
 142
 143         A=$(git -C repo commit-tree -m a HEAD^{tree}) &&
 144         promise_and_delete "$A" &&
 145
 146         git -C repo config core.repositoryformatversion 1 &&
 147         git -C repo config extensions.partialclone "arbitrary string" &&
 148         git -C repo fsck "$A"
 149 '
 150
 151 test_expect_success 'fetching of missing objects' '
 152         rm -rf repo &&
 153         test_create_repo server &&
 154         test_commit -C server foo &&
 155         git -C server repack -a -d --write-bitmap-index &&
 156
 157         git clone "file://$(pwd)/server" repo &&
 158         HASH=$(git -C repo rev-parse foo) &&
 159         rm -rf repo/.git/objects/* &&
 160
 161         git -C repo config core.repositoryformatversion 1 &&
 162         git -C repo config extensions.partialclone "origin" &&
 163         git -C repo cat-file -p "$HASH" &&
 164
 165         # Ensure that the .promisor file is written, and check that its
 166         # associated packfile contains the object
 167         ls repo/.git/objects/pack/pack-*.promisor >promisorlist &&
 168         test_line_count = 1 promisorlist &&
 169         IDX=$(sed "s/promisor$/idx/" promisorlist) &&
 170         git verify-pack --verbose "$IDX" >out &&
 171         grep "$HASH" out
 172 '
 173
 174 test_expect_success 'fetching of missing objects works with ref-in-want enabled' '
 175         # ref-in-want requires protocol version 2
 176         git -C server config protocol.version 2 &&
 177         git -C server config uploadpack.allowrefinwant 1 &&
 178         git -C repo config protocol.version 2 &&
 179
 180         rm -rf repo/.git/objects/* &&
 181         rm -f trace &&
 182         GIT_TRACE_PACKET="$(pwd)/trace" git -C repo cat-file -p "$HASH" &&
 183         grep "git< fetch=.*ref-in-want" trace
 184 '
 185
 186 test_expect_success 'fetching of missing blobs works' '
 187         rm -rf server repo &&
 188         test_create_repo server &&
 189         test_commit -C server foo &&
 190         git -C server repack -a -d --write-bitmap-index &&
 191
 192         git clone "file://$(pwd)/server" repo &&
 193         git hash-object repo/foo.t >blobhash &&
 194         rm -rf repo/.git/objects/* &&
 195
 196         git -C server config uploadpack.allowanysha1inwant 1 &&
 197         git -C server config uploadpack.allowfilter 1 &&
 198         git -C repo config core.repositoryformatversion 1 &&
 199         git -C repo config extensions.partialclone "origin" &&
 200
 201         git -C repo cat-file -p $(cat blobhash)
 202 '
 203
 204 test_expect_success 'fetching of missing trees does not fetch blobs' '
 205         rm -rf server repo &&
 206         test_create_repo server &&
 207         test_commit -C server foo &&
 208         git -C server repack -a -d --write-bitmap-index &&
 209
 210         git clone "file://$(pwd)/server" repo &&
 211         git -C repo rev-parse foo^{tree} >treehash &&
 212         git hash-object repo/foo.t >blobhash &&
 213         rm -rf repo/.git/objects/* &&
 214
 215         git -C server config uploadpack.allowanysha1inwant 1 &&
 216         git -C server config uploadpack.allowfilter 1 &&
 217         git -C repo config core.repositoryformatversion 1 &&
 218         git -C repo config extensions.partialclone "origin" &&
 219         git -C repo cat-file -p $(cat treehash) &&
 220
 221         # Ensure that the tree, but not the blob, is fetched
 222         git -C repo rev-list --objects --missing=print $(cat treehash) >objects &&
 223         grep "^$(cat treehash)" objects &&
 224         grep "^[?]$(cat blobhash)" objects
 225 '
 226
 227 test_expect_success 'rev-list stops traversal at missing and promised commit' '
 228         rm -rf repo &&
 229         test_create_repo repo &&
 230         test_commit -C repo foo &&
 231         test_commit -C repo bar &&
 232
 233         FOO=$(git -C repo rev-parse foo) &&
 234         promise_and_delete "$FOO" &&
 235
 236         git -C repo config core.repositoryformatversion 1 &&
 237         git -C repo config extensions.partialclone "arbitrary string" &&
 238         GIT_TEST_COMMIT_GRAPH=0 git -C repo rev-list --exclude-promisor-objects --objects bar >out &&
 239         grep $(git -C repo rev-parse bar) out &&
 240         ! grep $FOO out
 241 '
 242
 243 test_expect_success 'missing tree objects with --missing=allow-promisor and --exclude-promisor-objects' '
 244         rm -rf repo &&
 245         test_create_repo repo &&
 246         test_commit -C repo foo &&
 247         test_commit -C repo bar &&
 248         test_commit -C repo baz &&
 249
 250         promise_and_delete $(git -C repo rev-parse bar^{tree}) &&
 251         promise_and_delete $(git -C repo rev-parse foo^{tree}) &&
 252
 253         git -C repo config core.repositoryformatversion 1 &&
 254         git -C repo config extensions.partialclone "arbitrary string" &&
 255
 256         git -C repo rev-list --missing=allow-promisor --objects HEAD >objs 2>rev_list_err &&
 257         test_must_be_empty rev_list_err &&
 258         # 3 commits, 3 blobs, and 1 tree
 259         test_line_count = 7 objs &&
 260
 261         # Do the same for --exclude-promisor-objects, but with all trees gone.
 262         promise_and_delete $(git -C repo rev-parse baz^{tree}) &&
 263         git -C repo rev-list --exclude-promisor-objects --objects HEAD >objs 2>rev_list_err &&
 264         test_must_be_empty rev_list_err &&
 265         # 3 commits, no blobs or trees
 266         test_line_count = 3 objs
 267 '
 268
 269 test_expect_success 'missing non-root tree object and rev-list' '
 270         rm -rf repo &&
 271         test_create_repo repo &&
 272         mkdir repo/dir &&
 273         echo foo >repo/dir/foo &&
 274         git -C repo add dir/foo &&
 275         git -C repo commit -m "commit dir/foo" &&
 276
 277         promise_and_delete $(git -C repo rev-parse HEAD:dir) &&
 278
 279         git -C repo config core.repositoryformatversion 1 &&
 280         git -C repo config extensions.partialclone "arbitrary string" &&
 281
 282         git -C repo rev-list --missing=allow-any --objects HEAD >objs 2>rev_list_err &&
 283         test_must_be_empty rev_list_err &&
 284         # 1 commit and 1 tree
 285         test_line_count = 2 objs
 286 '
 287
 288 test_expect_success 'rev-list stops traversal at missing and promised tree' '
 289         rm -rf repo &&
 290         test_create_repo repo &&
 291         test_commit -C repo foo &&
 292         mkdir repo/a_dir &&
 293         echo something >repo/a_dir/something &&
 294         git -C repo add a_dir/something &&
 295         git -C repo commit -m bar &&
 296
 297         # foo^{tree} (tree referenced from commit)
 298         TREE=$(git -C repo rev-parse foo^{tree}) &&
 299
 300         # a tree referenced by HEAD^{tree} (tree referenced from tree)
 301         TREE2=$(git -C repo ls-tree HEAD^{tree} | grep " tree " | head -1 | cut -b13-52) &&
 302
 303         promise_and_delete "$TREE" &&
 304         promise_and_delete "$TREE2" &&
 305
 306         git -C repo config core.repositoryformatversion 1 &&
 307         git -C repo config extensions.partialclone "arbitrary string" &&
 308         git -C repo rev-list --exclude-promisor-objects --objects HEAD >out &&
 309         grep $(git -C repo rev-parse foo) out &&
 310         ! grep $TREE out &&
 311         grep $(git -C repo rev-parse HEAD) out &&
 312         ! grep $TREE2 out
 313 '
 314
 315 test_expect_success 'rev-list stops traversal at missing and promised blob' '
 316         rm -rf repo &&
 317         test_create_repo repo &&
 318         echo something >repo/something &&
 319         git -C repo add something &&
 320         git -C repo commit -m foo &&
 321
 322         BLOB=$(git -C repo hash-object -w something) &&
 323         promise_and_delete "$BLOB" &&
 324
 325         git -C repo config core.repositoryformatversion 1 &&
 326         git -C repo config extensions.partialclone "arbitrary string" &&
 327         git -C repo rev-list --exclude-promisor-objects --objects HEAD >out &&
 328         grep $(git -C repo rev-parse HEAD) out &&
 329         ! grep $BLOB out
 330 '
 331
 332 test_expect_success 'rev-list stops traversal at promisor commit, tree, and blob' '
 333         rm -rf repo &&
 334         test_create_repo repo &&
 335         test_commit -C repo foo &&
 336         test_commit -C repo bar &&
 337         test_commit -C repo baz &&
 338
 339         COMMIT=$(git -C repo rev-parse foo) &&
 340         TREE=$(git -C repo rev-parse bar^{tree}) &&
 341         BLOB=$(git hash-object repo/baz.t) &&
 342         printf "%s\n%s\n%s\n" $COMMIT $TREE $BLOB | pack_as_from_promisor &&
 343
 344         git -C repo config core.repositoryformatversion 1 &&
 345         git -C repo config extensions.partialclone "arbitrary string" &&
 346         git -C repo rev-list --exclude-promisor-objects --objects HEAD >out &&
 347         ! grep $COMMIT out &&
 348         ! grep $TREE out &&
 349         ! grep $BLOB out &&
 350         grep $(git -C repo rev-parse bar) out  # sanity check that some walking was done
 351 '
 352
 353 test_expect_success 'rev-list dies for missing objects on cmd line' '
 354         rm -rf repo &&
 355         test_create_repo repo &&
 356         test_commit -C repo foo &&
 357         test_commit -C repo bar &&
 358         test_commit -C repo baz &&
 359
 360         COMMIT=$(git -C repo rev-parse foo) &&
 361         TREE=$(git -C repo rev-parse bar^{tree}) &&
 362         BLOB=$(git hash-object repo/baz.t) &&
 363
 364         promise_and_delete $COMMIT &&
 365         promise_and_delete $TREE &&
 366         promise_and_delete $BLOB &&
 367
 368         git -C repo config core.repositoryformatversion 1 &&
 369         git -C repo config extensions.partialclone "arbitrary string" &&
 370
 371         for OBJ in "$COMMIT" "$TREE" "$BLOB"; do
 372                 test_must_fail git -C repo rev-list --objects \
 373                         --exclude-promisor-objects "$OBJ" &&
 374                 test_must_fail git -C repo rev-list --objects-edge-aggressive \
 375                         --exclude-promisor-objects "$OBJ" &&
 376
 377                 # Do not die or crash when --ignore-missing is passed.
 378                 git -C repo rev-list --ignore-missing --objects \
 379                         --exclude-promisor-objects "$OBJ" &&
 380                 git -C repo rev-list --ignore-missing --objects-edge-aggressive \
 381                         --exclude-promisor-objects "$OBJ"
 382         done
 383 '
 384
 385 test_expect_success 'gc repacks promisor objects separately from non-promisor objects' '
 386         rm -rf repo &&
 387         test_create_repo repo &&
 388         test_commit -C repo one &&
 389         test_commit -C repo two &&
 390
 391         TREE_ONE=$(git -C repo rev-parse one^{tree}) &&
 392         printf "$TREE_ONE\n" | pack_as_from_promisor &&
 393         TREE_TWO=$(git -C repo rev-parse two^{tree}) &&
 394         printf "$TREE_TWO\n" | pack_as_from_promisor &&
 395
 396         git -C repo config core.repositoryformatversion 1 &&
 397         git -C repo config extensions.partialclone "arbitrary string" &&
 398         git -C repo gc &&
 399
 400         # Ensure that exactly one promisor packfile exists, and that it
 401         # contains the trees but not the commits
 402         ls repo/.git/objects/pack/pack-*.promisor >promisorlist &&
 403         test_line_count = 1 promisorlist &&
 404         PROMISOR_PACKFILE=$(sed "s/.promisor/.pack/" <promisorlist) &&
 405         git verify-pack $PROMISOR_PACKFILE -v >out &&
 406         grep "$TREE_ONE" out &&
 407         grep "$TREE_TWO" out &&
 408         ! grep "$(git -C repo rev-parse one)" out &&
 409         ! grep "$(git -C repo rev-parse two)" out &&
 410
 411         # Remove the promisor packfile and associated files
 412         rm $(sed "s/.promisor//" <promisorlist).* &&
 413
 414         # Ensure that the single other pack contains the commits, but not the
 415         # trees
 416         ls repo/.git/objects/pack/pack-*.pack >packlist &&
 417         test_line_count = 1 packlist &&
 418         git verify-pack repo/.git/objects/pack/pack-*.pack -v >out &&
 419         grep "$(git -C repo rev-parse one)" out &&
 420         grep "$(git -C repo rev-parse two)" out &&
 421         ! grep "$TREE_ONE" out &&
 422         ! grep "$TREE_TWO" out
 423 '
 424
 425 test_expect_success 'gc does not repack promisor objects if there are none' '
 426         rm -rf repo &&
 427         test_create_repo repo &&
 428         test_commit -C repo one &&
 429
 430         git -C repo config core.repositoryformatversion 1 &&
 431         git -C repo config extensions.partialclone "arbitrary string" &&
 432         git -C repo gc &&
 433
 434         # Ensure that only one pack exists
 435         ls repo/.git/objects/pack/pack-*.pack >packlist &&
 436         test_line_count = 1 packlist
 437 '
 438
 439 repack_and_check () {
 440         rm -rf repo2 &&
 441         cp -r repo repo2 &&
 442         git -C repo2 repack $1 -d &&
 443         git -C repo2 fsck &&
 444
 445         git -C repo2 cat-file -e $2 &&
 446         git -C repo2 cat-file -e $3
 447 }
 448
 449 test_expect_success 'repack -d does not irreversibly delete promisor objects' '
 450         rm -rf repo &&
 451         test_create_repo repo &&
 452         git -C repo config core.repositoryformatversion 1 &&
 453         git -C repo config extensions.partialclone "arbitrary string" &&
 454
 455         git -C repo commit --allow-empty -m one &&
 456         git -C repo commit --allow-empty -m two &&
 457         git -C repo commit --allow-empty -m three &&
 458         git -C repo commit --allow-empty -m four &&
 459         ONE=$(git -C repo rev-parse HEAD^^^) &&
 460         TWO=$(git -C repo rev-parse HEAD^^) &&
 461         THREE=$(git -C repo rev-parse HEAD^) &&
 462
 463         printf "$TWO\n" | pack_as_from_promisor &&
 464         printf "$THREE\n" | pack_as_from_promisor &&
 465         delete_object repo "$ONE" &&
 466
 467         repack_and_check -a "$TWO" "$THREE" &&
 468         repack_and_check -A "$TWO" "$THREE" &&
 469         repack_and_check -l "$TWO" "$THREE"
 470 '
 471
 472 test_expect_success 'gc stops traversal when a missing but promised object is reached' '
 473         rm -rf repo &&
 474         test_create_repo repo &&
 475         test_commit -C repo my_commit &&
 476
 477         TREE_HASH=$(git -C repo rev-parse HEAD^{tree}) &&
 478         HASH=$(promise_and_delete $TREE_HASH) &&
 479
 480         git -C repo config core.repositoryformatversion 1 &&
 481         git -C repo config extensions.partialclone "arbitrary string" &&
 482         git -C repo gc &&
 483
 484         # Ensure that the promisor packfile still exists, and remove it
 485         test -e repo/.git/objects/pack/pack-$HASH.pack &&
 486         rm repo/.git/objects/pack/pack-$HASH.* &&
 487
 488         # Ensure that the single other pack contains the commit, but not the tree
 489         ls repo/.git/objects/pack/pack-*.pack >packlist &&
 490         test_line_count = 1 packlist &&
 491         git verify-pack repo/.git/objects/pack/pack-*.pack -v >out &&
 492         grep "$(git -C repo rev-parse HEAD)" out &&
 493         ! grep "$TREE_HASH" out
 494 '
 495
 496 . "$TEST_DIRECTORY"/lib-httpd.sh
 497 start_httpd
 498
 499 test_expect_success 'fetching of missing objects from an HTTP server' '
 500         rm -rf repo &&
 501         SERVER="$HTTPD_DOCUMENT_ROOT_PATH/server" &&
 502         test_create_repo "$SERVER" &&
 503         test_commit -C "$SERVER" foo &&
 504         git -C "$SERVER" repack -a -d --write-bitmap-index &&
 505
 506         git clone $HTTPD_URL/smart/server repo &&
 507         HASH=$(git -C repo rev-parse foo) &&
 508         rm -rf repo/.git/objects/* &&
 509
 510         git -C repo config core.repositoryformatversion 1 &&
 511         git -C repo config extensions.partialclone "origin" &&
 512         git -C repo cat-file -p "$HASH" &&
 513
 514         # Ensure that the .promisor file is written, and check that its
 515         # associated packfile contains the object
 516         ls repo/.git/objects/pack/pack-*.promisor >promisorlist &&
 517         test_line_count = 1 promisorlist &&
 518         IDX=$(sed "s/promisor$/idx/" promisorlist) &&
 519         git verify-pack --verbose "$IDX" >out &&
 520         grep "$HASH" out
 521 '
 522
 523 test_done