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 core.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 "$HASH" &&
 164
 165         # Ensure that the .promisor file is written, and check that its
 166         # associated packfile contains the object
 167         ls repo/.git/objects/pack/pack-*.promisor >promisorlist &&
 168         test_line_count = 1 promisorlist &&
 169         IDX=$(cat promisorlist | sed "s/promisor$/idx/") &&
 170         git verify-pack --verbose "$IDX" | grep "$HASH"
 171 '
 172
 173 test_expect_success 'fetching of missing objects works with ref-in-want enabled' '
 174         # ref-in-want requires protocol version 2
 175         git -C server config protocol.version 2 &&
 176         git -C server config uploadpack.allowrefinwant 1 &&
 177         git -C repo config protocol.version 2 &&
 178
 179         rm -rf repo/.git/objects/* &&
 180         rm -f trace &&
 181         GIT_TRACE_PACKET="$(pwd)/trace" git -C repo cat-file -p "$HASH" &&
 182         grep "git< fetch=.*ref-in-want" trace
 183 '
 184
 185 test_expect_success 'fetching of missing blobs works' '
 186         rm -rf server repo &&
 187         test_create_repo server &&
 188         test_commit -C server foo &&
 189         git -C server repack -a -d --write-bitmap-index &&
 190
 191         git clone "file://$(pwd)/server" repo &&
 192         git hash-object repo/foo.t >blobhash &&
 193         rm -rf repo/.git/objects/* &&
 194
 195         git -C server config uploadpack.allowanysha1inwant 1 &&
 196         git -C server config uploadpack.allowfilter 1 &&
 197         git -C repo config core.repositoryformatversion 1 &&
 198         git -C repo config extensions.partialclone "origin" &&
 199
 200         git -C repo cat-file -p $(cat blobhash)
 201 '
 202
 203 test_expect_success 'fetching of missing trees does not fetch blobs' '
 204         rm -rf server repo &&
 205         test_create_repo server &&
 206         test_commit -C server foo &&
 207         git -C server repack -a -d --write-bitmap-index &&
 208
 209         git clone "file://$(pwd)/server" repo &&
 210         git -C repo rev-parse foo^{tree} >treehash &&
 211         git hash-object repo/foo.t >blobhash &&
 212         rm -rf repo/.git/objects/* &&
 213
 214         git -C server config uploadpack.allowanysha1inwant 1 &&
 215         git -C server config uploadpack.allowfilter 1 &&
 216         git -C repo config core.repositoryformatversion 1 &&
 217         git -C repo config extensions.partialclone "origin" &&
 218         git -C repo cat-file -p $(cat treehash) &&
 219
 220         # Ensure that the tree, but not the blob, is fetched
 221         git -C repo rev-list --objects --missing=print $(cat treehash) >objects &&
 222         grep "^$(cat treehash)" objects &&
 223         grep "^[?]$(cat blobhash)" objects
 224 '
 225
 226 test_expect_success 'rev-list stops traversal at missing and promised commit' '
 227         rm -rf repo &&
 228         test_create_repo repo &&
 229         test_commit -C repo foo &&
 230         test_commit -C repo bar &&
 231
 232         FOO=$(git -C repo rev-parse foo) &&
 233         promise_and_delete "$FOO" &&
 234
 235         git -C repo config core.repositoryformatversion 1 &&
 236         git -C repo config extensions.partialclone "arbitrary string" &&
 237         GIT_TEST_COMMIT_GRAPH=0 git -C repo rev-list --exclude-promisor-objects --objects bar >out &&
 238         grep $(git -C repo rev-parse bar) out &&
 239         ! grep $FOO out
 240 '
 241
 242 test_expect_success 'missing tree objects with --missing=allow-promisor and --exclude-promisor-objects' '
 243         rm -rf repo &&
 244         test_create_repo repo &&
 245         test_commit -C repo foo &&
 246         test_commit -C repo bar &&
 247         test_commit -C repo baz &&
 248
 249         promise_and_delete $(git -C repo rev-parse bar^{tree}) &&
 250         promise_and_delete $(git -C repo rev-parse foo^{tree}) &&
 251
 252         git -C repo config core.repositoryformatversion 1 &&
 253         git -C repo config extensions.partialclone "arbitrary string" &&
 254
 255         git -C repo rev-list --missing=allow-promisor --objects HEAD >objs 2>rev_list_err &&
 256         test_must_be_empty rev_list_err &&
 257         # 3 commits, 3 blobs, and 1 tree
 258         test_line_count = 7 objs &&
 259
 260         # Do the same for --exclude-promisor-objects, but with all trees gone.
 261         promise_and_delete $(git -C repo rev-parse baz^{tree}) &&
 262         git -C repo rev-list --exclude-promisor-objects --objects HEAD >objs 2>rev_list_err &&
 263         test_must_be_empty rev_list_err &&
 264         # 3 commits, no blobs or trees
 265         test_line_count = 3 objs
 266 '
 267
 268 test_expect_success 'missing non-root tree object and rev-list' '
 269         rm -rf repo &&
 270         test_create_repo repo &&
 271         mkdir repo/dir &&
 272         echo foo >repo/dir/foo &&
 273         git -C repo add dir/foo &&
 274         git -C repo commit -m "commit dir/foo" &&
 275
 276         promise_and_delete $(git -C repo rev-parse HEAD:dir) &&
 277
 278         git -C repo config core.repositoryformatversion 1 &&
 279         git -C repo config extensions.partialclone "arbitrary string" &&
 280
 281         git -C repo rev-list --missing=allow-any --objects HEAD >objs 2>rev_list_err &&
 282         test_must_be_empty rev_list_err &&
 283         # 1 commit and 1 tree
 284         test_line_count = 2 objs
 285 '
 286
 287 test_expect_success 'rev-list stops traversal at missing and promised tree' '
 288         rm -rf repo &&
 289         test_create_repo repo &&
 290         test_commit -C repo foo &&
 291         mkdir repo/a_dir &&
 292         echo something >repo/a_dir/something &&
 293         git -C repo add a_dir/something &&
 294         git -C repo commit -m bar &&
 295
 296         # foo^{tree} (tree referenced from commit)
 297         TREE=$(git -C repo rev-parse foo^{tree}) &&
 298
 299         # a tree referenced by HEAD^{tree} (tree referenced from tree)
 300         TREE2=$(git -C repo ls-tree HEAD^{tree} | grep " tree " | head -1 | cut -b13-52) &&
 301
 302         promise_and_delete "$TREE" &&
 303         promise_and_delete "$TREE2" &&
 304
 305         git -C repo config core.repositoryformatversion 1 &&
 306         git -C repo config extensions.partialclone "arbitrary string" &&
 307         git -C repo rev-list --exclude-promisor-objects --objects HEAD >out &&
 308         grep $(git -C repo rev-parse foo) out &&
 309         ! grep $TREE out &&
 310         grep $(git -C repo rev-parse HEAD) out &&
 311         ! grep $TREE2 out
 312 '
 313
 314 test_expect_success 'rev-list stops traversal at missing and promised blob' '
 315         rm -rf repo &&
 316         test_create_repo repo &&
 317         echo something >repo/something &&
 318         git -C repo add something &&
 319         git -C repo commit -m foo &&
 320
 321         BLOB=$(git -C repo hash-object -w something) &&
 322         promise_and_delete "$BLOB" &&
 323
 324         git -C repo config core.repositoryformatversion 1 &&
 325         git -C repo config extensions.partialclone "arbitrary string" &&
 326         git -C repo rev-list --exclude-promisor-objects --objects HEAD >out &&
 327         grep $(git -C repo rev-parse HEAD) out &&
 328         ! grep $BLOB out
 329 '
 330
 331 test_expect_success 'rev-list stops traversal at promisor commit, tree, and blob' '
 332         rm -rf repo &&
 333         test_create_repo repo &&
 334         test_commit -C repo foo &&
 335         test_commit -C repo bar &&
 336         test_commit -C repo baz &&
 337
 338         COMMIT=$(git -C repo rev-parse foo) &&
 339         TREE=$(git -C repo rev-parse bar^{tree}) &&
 340         BLOB=$(git hash-object repo/baz.t) &&
 341         printf "%s\n%s\n%s\n" $COMMIT $TREE $BLOB | pack_as_from_promisor &&
 342
 343         git -C repo config core.repositoryformatversion 1 &&
 344         git -C repo config extensions.partialclone "arbitrary string" &&
 345         git -C repo rev-list --exclude-promisor-objects --objects HEAD >out &&
 346         ! grep $COMMIT out &&
 347         ! grep $TREE out &&
 348         ! grep $BLOB out &&
 349         grep $(git -C repo rev-parse bar) out  # sanity check that some walking was done
 350 '
 351
 352 test_expect_success 'rev-list accepts missing and promised objects on command line' '
 353         rm -rf repo &&
 354         test_create_repo repo &&
 355         test_commit -C repo foo &&
 356         test_commit -C repo bar &&
 357         test_commit -C repo baz &&
 358
 359         COMMIT=$(git -C repo rev-parse foo) &&
 360         TREE=$(git -C repo rev-parse bar^{tree}) &&
 361         BLOB=$(git hash-object repo/baz.t) &&
 362
 363         promise_and_delete $COMMIT &&
 364         promise_and_delete $TREE &&
 365         promise_and_delete $BLOB &&
 366
 367         git -C repo config core.repositoryformatversion 1 &&
 368         git -C repo config extensions.partialclone "arbitrary string" &&
 369         git -C repo rev-list --exclude-promisor-objects --objects "$COMMIT" "$TREE" "$BLOB"
 370 '
 371
 372 test_expect_success 'gc repacks promisor objects separately from non-promisor objects' '
 373         rm -rf repo &&
 374         test_create_repo repo &&
 375         test_commit -C repo one &&
 376         test_commit -C repo two &&
 377
 378         TREE_ONE=$(git -C repo rev-parse one^{tree}) &&
 379         printf "$TREE_ONE\n" | pack_as_from_promisor &&
 380         TREE_TWO=$(git -C repo rev-parse two^{tree}) &&
 381         printf "$TREE_TWO\n" | pack_as_from_promisor &&
 382
 383         git -C repo config core.repositoryformatversion 1 &&
 384         git -C repo config extensions.partialclone "arbitrary string" &&
 385         git -C repo gc &&
 386
 387         # Ensure that exactly one promisor packfile exists, and that it
 388         # contains the trees but not the commits
 389         ls repo/.git/objects/pack/pack-*.promisor >promisorlist &&
 390         test_line_count = 1 promisorlist &&
 391         PROMISOR_PACKFILE=$(sed "s/.promisor/.pack/" <promisorlist) &&
 392         git verify-pack $PROMISOR_PACKFILE -v >out &&
 393         grep "$TREE_ONE" out &&
 394         grep "$TREE_TWO" out &&
 395         ! grep "$(git -C repo rev-parse one)" out &&
 396         ! grep "$(git -C repo rev-parse two)" out &&
 397
 398         # Remove the promisor packfile and associated files
 399         rm $(sed "s/.promisor//" <promisorlist).* &&
 400
 401         # Ensure that the single other pack contains the commits, but not the
 402         # trees
 403         ls repo/.git/objects/pack/pack-*.pack >packlist &&
 404         test_line_count = 1 packlist &&
 405         git verify-pack repo/.git/objects/pack/pack-*.pack -v >out &&
 406         grep "$(git -C repo rev-parse one)" out &&
 407         grep "$(git -C repo rev-parse two)" out &&
 408         ! grep "$TREE_ONE" out &&
 409         ! grep "$TREE_TWO" out
 410 '
 411
 412 test_expect_success 'gc does not repack promisor objects if there are none' '
 413         rm -rf repo &&
 414         test_create_repo repo &&
 415         test_commit -C repo one &&
 416
 417         git -C repo config core.repositoryformatversion 1 &&
 418         git -C repo config extensions.partialclone "arbitrary string" &&
 419         git -C repo gc &&
 420
 421         # Ensure that only one pack exists
 422         ls repo/.git/objects/pack/pack-*.pack >packlist &&
 423         test_line_count = 1 packlist
 424 '
 425
 426 repack_and_check () {
 427         rm -rf repo2 &&
 428         cp -r repo repo2 &&
 429         git -C repo2 repack $1 -d &&
 430         git -C repo2 fsck &&
 431
 432         git -C repo2 cat-file -e $2 &&
 433         git -C repo2 cat-file -e $3
 434 }
 435
 436 test_expect_success 'repack -d does not irreversibly delete promisor objects' '
 437         rm -rf repo &&
 438         test_create_repo repo &&
 439         git -C repo config core.repositoryformatversion 1 &&
 440         git -C repo config extensions.partialclone "arbitrary string" &&
 441
 442         git -C repo commit --allow-empty -m one &&
 443         git -C repo commit --allow-empty -m two &&
 444         git -C repo commit --allow-empty -m three &&
 445         git -C repo commit --allow-empty -m four &&
 446         ONE=$(git -C repo rev-parse HEAD^^^) &&
 447         TWO=$(git -C repo rev-parse HEAD^^) &&
 448         THREE=$(git -C repo rev-parse HEAD^) &&
 449
 450         printf "$TWO\n" | pack_as_from_promisor &&
 451         printf "$THREE\n" | pack_as_from_promisor &&
 452         delete_object repo "$ONE" &&
 453
 454         repack_and_check -a "$TWO" "$THREE" &&
 455         repack_and_check -A "$TWO" "$THREE" &&
 456         repack_and_check -l "$TWO" "$THREE"
 457 '
 458
 459 test_expect_success 'gc stops traversal when a missing but promised object is reached' '
 460         rm -rf repo &&
 461         test_create_repo repo &&
 462         test_commit -C repo my_commit &&
 463
 464         TREE_HASH=$(git -C repo rev-parse HEAD^{tree}) &&
 465         HASH=$(promise_and_delete $TREE_HASH) &&
 466
 467         git -C repo config core.repositoryformatversion 1 &&
 468         git -C repo config extensions.partialclone "arbitrary string" &&
 469         git -C repo gc &&
 470
 471         # Ensure that the promisor packfile still exists, and remove it
 472         test -e repo/.git/objects/pack/pack-$HASH.pack &&
 473         rm repo/.git/objects/pack/pack-$HASH.* &&
 474
 475         # Ensure that the single other pack contains the commit, but not the tree
 476         ls repo/.git/objects/pack/pack-*.pack >packlist &&
 477         test_line_count = 1 packlist &&
 478         git verify-pack repo/.git/objects/pack/pack-*.pack -v >out &&
 479         grep "$(git -C repo rev-parse HEAD)" out &&
 480         ! grep "$TREE_HASH" out
 481 '
 482
 483 LIB_HTTPD_PORT=12345  # default port, 410, cannot be used as non-root
 484 . "$TEST_DIRECTORY"/lib-httpd.sh
 485 start_httpd
 486
 487 test_expect_success 'fetching of missing objects from an HTTP server' '
 488         rm -rf repo &&
 489         SERVER="$HTTPD_DOCUMENT_ROOT_PATH/server" &&
 490         test_create_repo "$SERVER" &&
 491         test_commit -C "$SERVER" foo &&
 492         git -C "$SERVER" repack -a -d --write-bitmap-index &&
 493
 494         git clone $HTTPD_URL/smart/server repo &&
 495         HASH=$(git -C repo rev-parse foo) &&
 496         rm -rf repo/.git/objects/* &&
 497
 498         git -C repo config core.repositoryformatversion 1 &&
 499         git -C repo config extensions.partialclone "origin" &&
 500         git -C repo cat-file -p "$HASH" &&
 501
 502         # Ensure that the .promisor file is written, and check that its
 503         # associated packfile contains the object
 504         ls repo/.git/objects/pack/pack-*.promisor >promisorlist &&
 505         test_line_count = 1 promisorlist &&
 506         IDX=$(cat promisorlist | sed "s/promisor$/idx/") &&
 507         git verify-pack --verbose "$IDX" | grep "$HASH"
 508 '
 509
 510 stop_httpd
 511
 512 test_done