Andrew's git - gitweb.git/blob - t/t0410-partial-clone.sh

   1#!/bin/sh
   2
   3test_description='partial clone'
   4
   5. ./test-lib.sh
   6
   7delete_object () {
   8        rm $1/.git/objects/$(echo $2 | sed -e 's|^..|&/|')
   9}
  10
  11pack_as_from_promisor () {
  12        HASH=$(git -C repo pack-objects .git/objects/pack/pack) &&
  13        >repo/.git/objects/pack/pack-$HASH.promisor &&
  14        echo $HASH
  15}
  16
  17promise_and_delete () {
  18        HASH=$(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 "$HASH"
  24}
  25
  26test_expect_success 'extensions.partialclone without filter' '
  27        test_create_repo server &&
  28        git clone --filter="blob:none" "file://$(pwd)/server" client &&
  29        git -C client config --unset core.partialclonefilter &&
  30        git -C client fetch origin
  31'
  32
  33test_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
  58test_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
  81test_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 "$A" &&
  93
  94        git -C repo config core.repositoryformatversion 1 &&
  95        git -C repo config extensions.partialclone "arbitrary string" &&
  96        test_must_fail git -C repo fsck
  97'
  98
  99test_expect_success 'missing ref object, but promised, passes fsck' '
 100        rm -rf repo &&
 101        test_create_repo repo &&
 102        test_commit -C repo my_commit &&
 103
 104        A=$(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 "$A" &&
 109
 110        git -C repo config core.repositoryformatversion 1 &&
 111        git -C repo config extensions.partialclone "arbitrary string" &&
 112        git -C repo fsck
 113'
 114
 115test_expect_success 'missing object, but promised, passes fsck' '
 116        rm -rf repo &&
 117        test_create_repo repo &&
 118        test_commit -C repo 1 &&
 119        test_commit -C repo 2 &&
 120        test_commit -C repo 3 &&
 121        git -C repo tag -a annotated_tag -m "annotated tag" &&
 122
 123        C=$(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 "$AT" &&
 132
 133        git -C repo config core.repositoryformatversion 1 &&
 134        git -C repo config extensions.partialclone "arbitrary string" &&
 135        git -C repo fsck
 136'
 137
 138test_expect_success 'missing CLI object, but promised, passes fsck' '
 139        rm -rf repo &&
 140        test_create_repo repo &&
 141        test_commit -C repo my_commit &&
 142
 143        A=$(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
 151test_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 "$HASH"
 171'
 172
 173test_expect_success 'fetching of missing objects works with ref-in-want enabled' '
 174        # ref-in-want requires protocol version 2
 175        git -C server config protocol.version 2 &&
 176        git -C server config uploadpack.allowrefinwant 1 &&
 177        git -C repo config protocol.version 2 &&
 178
 179        rm -rf repo/.git/objects/* &&
 180        rm -f trace &&
 181        GIT_TRACE_PACKET="$(pwd)/trace" git -C repo cat-file -p "$HASH" &&
 182        grep "git< fetch=.*ref-in-want" trace
 183'
 184
 185test_expect_success 'fetching of missing blobs works' '
 186        rm -rf server repo &&
 187        test_create_repo server &&
 188        test_commit -C server foo &&
 189        git -C server repack -a -d --write-bitmap-index &&
 190
 191        git clone "file://$(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 $(cat blobhash)
 201'
 202
 203test_expect_success 'fetching of missing trees does not fetch blobs' '
 204        rm -rf server repo &&
 205        test_create_repo server &&
 206        test_commit -C server foo &&
 207        git -C server repack -a -d --write-bitmap-index &&
 208
 209        git clone "file://$(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 "^[?]$(cat blobhash)" objects
 224'
 225
 226test_expect_success 'rev-list stops traversal at missing and promised commit' '
 227        rm -rf repo &&
 228        test_create_repo repo &&
 229        test_commit -C repo foo &&
 230        test_commit -C repo bar &&
 231
 232        FOO=$(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 -C repo rev-list --exclude-promisor-objects --objects bar >out &&
 238        grep $(git -C repo rev-parse bar) out &&
 239        ! grep $FOO out
 240'
 241
 242test_expect_success 'rev-list stops traversal at missing and promised tree' '
 243        rm -rf repo &&
 244        test_create_repo repo &&
 245        test_commit -C repo foo &&
 246        mkdir repo/a_dir &&
 247        echo something >repo/a_dir/something &&
 248        git -C repo add a_dir/something &&
 249        git -C repo commit -m bar &&
 250
 251        # foo^{tree} (tree referenced from commit)
 252        TREE=$(git -C repo rev-parse foo^{tree}) &&
 253
 254        # a tree referenced by HEAD^{tree} (tree referenced from tree)
 255        TREE2=$(git -C repo ls-tree HEAD^{tree} | grep " tree " | head -1 | cut -b13-52) &&
 256
 257        promise_and_delete "$TREE" &&
 258        promise_and_delete "$TREE2" &&
 259
 260        git -C repo config core.repositoryformatversion 1 &&
 261        git -C repo config extensions.partialclone "arbitrary string" &&
 262        git -C repo rev-list --exclude-promisor-objects --objects HEAD >out &&
 263        grep $(git -C repo rev-parse foo) out &&
 264        ! grep $TREE out &&
 265        grep $(git -C repo rev-parse HEAD) out &&
 266        ! grep $TREE2 out
 267'
 268
 269test_expect_success 'rev-list stops traversal at missing and promised blob' '
 270        rm -rf repo &&
 271        test_create_repo repo &&
 272        echo something >repo/something &&
 273        git -C repo add something &&
 274        git -C repo commit -m foo &&
 275
 276        BLOB=$(git -C repo hash-object -w something) &&
 277        promise_and_delete "$BLOB" &&
 278
 279        git -C repo config core.repositoryformatversion 1 &&
 280        git -C repo config extensions.partialclone "arbitrary string" &&
 281        git -C repo rev-list --exclude-promisor-objects --objects HEAD >out &&
 282        grep $(git -C repo rev-parse HEAD) out &&
 283        ! grep $BLOB out
 284'
 285
 286test_expect_success 'rev-list stops traversal at promisor commit, tree, and blob' '
 287        rm -rf repo &&
 288        test_create_repo repo &&
 289        test_commit -C repo foo &&
 290        test_commit -C repo bar &&
 291        test_commit -C repo baz &&
 292
 293        COMMIT=$(git -C repo rev-parse foo) &&
 294        TREE=$(git -C repo rev-parse bar^{tree}) &&
 295        BLOB=$(git hash-object repo/baz.t) &&
 296        printf "%s\n%s\n%s\n" $COMMIT $TREE $BLOB | pack_as_from_promisor &&
 297
 298        git -C repo config core.repositoryformatversion 1 &&
 299        git -C repo config extensions.partialclone "arbitrary string" &&
 300        git -C repo rev-list --exclude-promisor-objects --objects HEAD >out &&
 301        ! grep $COMMIT out &&
 302        ! grep $TREE out &&
 303        ! grep $BLOB out &&
 304        grep $(git -C repo rev-parse bar) out  # sanity check that some walking was done
 305'
 306
 307test_expect_success 'rev-list accepts missing and promised objects on command line' '
 308        rm -rf repo &&
 309        test_create_repo repo &&
 310        test_commit -C repo foo &&
 311        test_commit -C repo bar &&
 312        test_commit -C repo baz &&
 313
 314        COMMIT=$(git -C repo rev-parse foo) &&
 315        TREE=$(git -C repo rev-parse bar^{tree}) &&
 316        BLOB=$(git hash-object repo/baz.t) &&
 317
 318        promise_and_delete $COMMIT &&
 319        promise_and_delete $TREE &&
 320        promise_and_delete $BLOB &&
 321
 322        git -C repo config core.repositoryformatversion 1 &&
 323        git -C repo config extensions.partialclone "arbitrary string" &&
 324        git -C repo rev-list --exclude-promisor-objects --objects "$COMMIT" "$TREE" "$BLOB"
 325'
 326
 327test_expect_success 'gc repacks promisor objects separately from non-promisor objects' '
 328        rm -rf repo &&
 329        test_create_repo repo &&
 330        test_commit -C repo one &&
 331        test_commit -C repo two &&
 332
 333        TREE_ONE=$(git -C repo rev-parse one^{tree}) &&
 334        printf "$TREE_ONE\n" | pack_as_from_promisor &&
 335        TREE_TWO=$(git -C repo rev-parse two^{tree}) &&
 336        printf "$TREE_TWO\n" | pack_as_from_promisor &&
 337
 338        git -C repo config core.repositoryformatversion 1 &&
 339        git -C repo config extensions.partialclone "arbitrary string" &&
 340        git -C repo gc &&
 341
 342        # Ensure that exactly one promisor packfile exists, and that it
 343        # contains the trees but not the commits
 344        ls repo/.git/objects/pack/pack-*.promisor >promisorlist &&
 345        test_line_count = 1 promisorlist &&
 346        PROMISOR_PACKFILE=$(sed "s/.promisor/.pack/" <promisorlist) &&
 347        git verify-pack $PROMISOR_PACKFILE -v >out &&
 348        grep "$TREE_ONE" out &&
 349        grep "$TREE_TWO" out &&
 350        ! grep "$(git -C repo rev-parse one)" out &&
 351        ! grep "$(git -C repo rev-parse two)" out &&
 352
 353        # Remove the promisor packfile and associated files
 354        rm $(sed "s/.promisor//" <promisorlist).* &&
 355
 356        # Ensure that the single other pack contains the commits, but not the
 357        # trees
 358        ls repo/.git/objects/pack/pack-*.pack >packlist &&
 359        test_line_count = 1 packlist &&
 360        git verify-pack repo/.git/objects/pack/pack-*.pack -v >out &&
 361        grep "$(git -C repo rev-parse one)" out &&
 362        grep "$(git -C repo rev-parse two)" out &&
 363        ! grep "$TREE_ONE" out &&
 364        ! grep "$TREE_TWO" out
 365'
 366
 367test_expect_success 'gc does not repack promisor objects if there are none' '
 368        rm -rf repo &&
 369        test_create_repo repo &&
 370        test_commit -C repo one &&
 371
 372        git -C repo config core.repositoryformatversion 1 &&
 373        git -C repo config extensions.partialclone "arbitrary string" &&
 374        git -C repo gc &&
 375
 376        # Ensure that only one pack exists
 377        ls repo/.git/objects/pack/pack-*.pack >packlist &&
 378        test_line_count = 1 packlist
 379'
 380
 381repack_and_check () {
 382        rm -rf repo2 &&
 383        cp -r repo repo2 &&
 384        git -C repo2 repack $1 -d &&
 385        git -C repo2 fsck &&
 386
 387        git -C repo2 cat-file -e $2 &&
 388        git -C repo2 cat-file -e $3
 389}
 390
 391test_expect_success 'repack -d does not irreversibly delete promisor objects' '
 392        rm -rf repo &&
 393        test_create_repo repo &&
 394        git -C repo config core.repositoryformatversion 1 &&
 395        git -C repo config extensions.partialclone "arbitrary string" &&
 396
 397        git -C repo commit --allow-empty -m one &&
 398        git -C repo commit --allow-empty -m two &&
 399        git -C repo commit --allow-empty -m three &&
 400        git -C repo commit --allow-empty -m four &&
 401        ONE=$(git -C repo rev-parse HEAD^^^) &&
 402        TWO=$(git -C repo rev-parse HEAD^^) &&
 403        THREE=$(git -C repo rev-parse HEAD^) &&
 404
 405        printf "$TWO\n" | pack_as_from_promisor &&
 406        printf "$THREE\n" | pack_as_from_promisor &&
 407        delete_object repo "$ONE" &&
 408
 409        repack_and_check -a "$TWO" "$THREE" &&
 410        repack_and_check -A "$TWO" "$THREE" &&
 411        repack_and_check -l "$TWO" "$THREE"
 412'
 413
 414test_expect_success 'gc stops traversal when a missing but promised object is reached' '
 415        rm -rf repo &&
 416        test_create_repo repo &&
 417        test_commit -C repo my_commit &&
 418
 419        TREE_HASH=$(git -C repo rev-parse HEAD^{tree}) &&
 420        HASH=$(promise_and_delete $TREE_HASH) &&
 421
 422        git -C repo config core.repositoryformatversion 1 &&
 423        git -C repo config extensions.partialclone "arbitrary string" &&
 424        git -C repo gc &&
 425
 426        # Ensure that the promisor packfile still exists, and remove it
 427        test -e repo/.git/objects/pack/pack-$HASH.pack &&
 428        rm repo/.git/objects/pack/pack-$HASH.* &&
 429
 430        # Ensure that the single other pack contains the commit, but not the tree
 431        ls repo/.git/objects/pack/pack-*.pack >packlist &&
 432        test_line_count = 1 packlist &&
 433        git verify-pack repo/.git/objects/pack/pack-*.pack -v >out &&
 434        grep "$(git -C repo rev-parse HEAD)" out &&
 435        ! grep "$TREE_HASH" out
 436'
 437
 438LIB_HTTPD_PORT=12345  # default port, 410, cannot be used as non-root
 439. "$TEST_DIRECTORY"/lib-httpd.sh
 440start_httpd
 441
 442test_expect_success 'fetching of missing objects from an HTTP server' '
 443        rm -rf repo &&
 444        SERVER="$HTTPD_DOCUMENT_ROOT_PATH/server" &&
 445        test_create_repo "$SERVER" &&
 446        test_commit -C "$SERVER" foo &&
 447        git -C "$SERVER" repack -a -d --write-bitmap-index &&
 448
 449        git clone $HTTPD_URL/smart/server repo &&
 450        HASH=$(git -C repo rev-parse foo) &&
 451        rm -rf repo/.git/objects/* &&
 452
 453        git -C repo config core.repositoryformatversion 1 &&
 454        git -C repo config extensions.partialclone "origin" &&
 455        git -C repo cat-file -p "$HASH" &&
 456
 457        # Ensure that the .promisor file is written, and check that its
 458        # associated packfile contains the object
 459        ls repo/.git/objects/pack/pack-*.promisor >promisorlist &&
 460        test_line_count = 1 promisorlist &&
 461        IDX=$(cat promisorlist | sed "s/promisor$/idx/") &&
 462        git verify-pack --verbose "$IDX" | grep "$HASH"
 463'
 464
 465stop_httpd
 466
 467test_done