Andrew's git / gitweb.git / t/t0410-partial-clone.sh
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t / t0410-partial-clone.shon commit commit-graph: define GIT_TEST_COMMIT_GRAPH (859fdc0)
   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 "$HASH"
 171'
 172
 173test_expect_success 'rev-list stops traversal at missing and promised commit' '
 174        rm -rf repo &&
 175        test_create_repo repo &&
 176        test_commit -C repo foo &&
 177        test_commit -C repo bar &&
 178
 179        FOO=$(git -C repo rev-parse foo) &&
 180        promise_and_delete "$FOO" &&
 181
 182        git -C repo config core.repositoryformatversion 1 &&
 183        git -C repo config extensions.partialclone "arbitrary string" &&
 184        GIT_TEST_COMMIT_GRAPH=0 git -C repo rev-list --exclude-promisor-objects --objects bar >out &&
 185        grep $(git -C repo rev-parse bar) out &&
 186        ! grep $FOO out
 187'
 188
 189test_expect_success 'rev-list stops traversal at missing and promised tree' '
 190        rm -rf repo &&
 191        test_create_repo repo &&
 192        test_commit -C repo foo &&
 193        mkdir repo/a_dir &&
 194        echo something >repo/a_dir/something &&
 195        git -C repo add a_dir/something &&
 196        git -C repo commit -m bar &&
 197
 198        # foo^{tree} (tree referenced from commit)
 199        TREE=$(git -C repo rev-parse foo^{tree}) &&
 200
 201        # a tree referenced by HEAD^{tree} (tree referenced from tree)
 202        TREE2=$(git -C repo ls-tree HEAD^{tree} | grep " tree " | head -1 | cut -b13-52) &&
 203
 204        promise_and_delete "$TREE" &&
 205        promise_and_delete "$TREE2" &&
 206
 207        git -C repo config core.repositoryformatversion 1 &&
 208        git -C repo config extensions.partialclone "arbitrary string" &&
 209        git -C repo rev-list --exclude-promisor-objects --objects HEAD >out &&
 210        grep $(git -C repo rev-parse foo) out &&
 211        ! grep $TREE out &&
 212        grep $(git -C repo rev-parse HEAD) out &&
 213        ! grep $TREE2 out
 214'
 215
 216test_expect_success 'rev-list stops traversal at missing and promised blob' '
 217        rm -rf repo &&
 218        test_create_repo repo &&
 219        echo something >repo/something &&
 220        git -C repo add something &&
 221        git -C repo commit -m foo &&
 222
 223        BLOB=$(git -C repo hash-object -w something) &&
 224        promise_and_delete "$BLOB" &&
 225
 226        git -C repo config core.repositoryformatversion 1 &&
 227        git -C repo config extensions.partialclone "arbitrary string" &&
 228        git -C repo rev-list --exclude-promisor-objects --objects HEAD >out &&
 229        grep $(git -C repo rev-parse HEAD) out &&
 230        ! grep $BLOB out
 231'
 232
 233test_expect_success 'rev-list stops traversal at promisor commit, tree, and blob' '
 234        rm -rf repo &&
 235        test_create_repo repo &&
 236        test_commit -C repo foo &&
 237        test_commit -C repo bar &&
 238        test_commit -C repo baz &&
 239
 240        COMMIT=$(git -C repo rev-parse foo) &&
 241        TREE=$(git -C repo rev-parse bar^{tree}) &&
 242        BLOB=$(git hash-object repo/baz.t) &&
 243        printf "%s\n%s\n%s\n" $COMMIT $TREE $BLOB | pack_as_from_promisor &&
 244
 245        git -C repo config core.repositoryformatversion 1 &&
 246        git -C repo config extensions.partialclone "arbitrary string" &&
 247        git -C repo rev-list --exclude-promisor-objects --objects HEAD >out &&
 248        ! grep $COMMIT out &&
 249        ! grep $TREE out &&
 250        ! grep $BLOB out &&
 251        grep $(git -C repo rev-parse bar) out  # sanity check that some walking was done
 252'
 253
 254test_expect_success 'rev-list accepts missing and promised objects on command line' '
 255        rm -rf repo &&
 256        test_create_repo repo &&
 257        test_commit -C repo foo &&
 258        test_commit -C repo bar &&
 259        test_commit -C repo baz &&
 260
 261        COMMIT=$(git -C repo rev-parse foo) &&
 262        TREE=$(git -C repo rev-parse bar^{tree}) &&
 263        BLOB=$(git hash-object repo/baz.t) &&
 264
 265        promise_and_delete $COMMIT &&
 266        promise_and_delete $TREE &&
 267        promise_and_delete $BLOB &&
 268
 269        git -C repo config core.repositoryformatversion 1 &&
 270        git -C repo config extensions.partialclone "arbitrary string" &&
 271        git -C repo rev-list --exclude-promisor-objects --objects "$COMMIT" "$TREE" "$BLOB"
 272'
 273
 274test_expect_success 'gc repacks promisor objects separately from non-promisor objects' '
 275        rm -rf repo &&
 276        test_create_repo repo &&
 277        test_commit -C repo one &&
 278        test_commit -C repo two &&
 279
 280        TREE_ONE=$(git -C repo rev-parse one^{tree}) &&
 281        printf "$TREE_ONE\n" | pack_as_from_promisor &&
 282        TREE_TWO=$(git -C repo rev-parse two^{tree}) &&
 283        printf "$TREE_TWO\n" | pack_as_from_promisor &&
 284
 285        git -C repo config core.repositoryformatversion 1 &&
 286        git -C repo config extensions.partialclone "arbitrary string" &&
 287        git -C repo gc &&
 288
 289        # Ensure that exactly one promisor packfile exists, and that it
 290        # contains the trees but not the commits
 291        ls repo/.git/objects/pack/pack-*.promisor >promisorlist &&
 292        test_line_count = 1 promisorlist &&
 293        PROMISOR_PACKFILE=$(sed "s/.promisor/.pack/" <promisorlist) &&
 294        git verify-pack $PROMISOR_PACKFILE -v >out &&
 295        grep "$TREE_ONE" out &&
 296        grep "$TREE_TWO" out &&
 297        ! grep "$(git -C repo rev-parse one)" out &&
 298        ! grep "$(git -C repo rev-parse two)" out &&
 299
 300        # Remove the promisor packfile and associated files
 301        rm $(sed "s/.promisor//" <promisorlist).* &&
 302
 303        # Ensure that the single other pack contains the commits, but not the
 304        # trees
 305        ls repo/.git/objects/pack/pack-*.pack >packlist &&
 306        test_line_count = 1 packlist &&
 307        git verify-pack repo/.git/objects/pack/pack-*.pack -v >out &&
 308        grep "$(git -C repo rev-parse one)" out &&
 309        grep "$(git -C repo rev-parse two)" out &&
 310        ! grep "$TREE_ONE" out &&
 311        ! grep "$TREE_TWO" out
 312'
 313
 314test_expect_success 'gc does not repack promisor objects if there are none' '
 315        rm -rf repo &&
 316        test_create_repo repo &&
 317        test_commit -C repo one &&
 318
 319        git -C repo config core.repositoryformatversion 1 &&
 320        git -C repo config extensions.partialclone "arbitrary string" &&
 321        git -C repo gc &&
 322
 323        # Ensure that only one pack exists
 324        ls repo/.git/objects/pack/pack-*.pack >packlist &&
 325        test_line_count = 1 packlist
 326'
 327
 328repack_and_check () {
 329        rm -rf repo2 &&
 330        cp -r repo repo2 &&
 331        git -C repo2 repack $1 -d &&
 332        git -C repo2 fsck &&
 333
 334        git -C repo2 cat-file -e $2 &&
 335        git -C repo2 cat-file -e $3
 336}
 337
 338test_expect_success 'repack -d does not irreversibly delete promisor objects' '
 339        rm -rf repo &&
 340        test_create_repo repo &&
 341        git -C repo config core.repositoryformatversion 1 &&
 342        git -C repo config extensions.partialclone "arbitrary string" &&
 343
 344        git -C repo commit --allow-empty -m one &&
 345        git -C repo commit --allow-empty -m two &&
 346        git -C repo commit --allow-empty -m three &&
 347        git -C repo commit --allow-empty -m four &&
 348        ONE=$(git -C repo rev-parse HEAD^^^) &&
 349        TWO=$(git -C repo rev-parse HEAD^^) &&
 350        THREE=$(git -C repo rev-parse HEAD^) &&
 351
 352        printf "$TWO\n" | pack_as_from_promisor &&
 353        printf "$THREE\n" | pack_as_from_promisor &&
 354        delete_object repo "$ONE" &&
 355
 356        repack_and_check -a "$TWO" "$THREE" &&
 357        repack_and_check -A "$TWO" "$THREE" &&
 358        repack_and_check -l "$TWO" "$THREE"
 359'
 360
 361test_expect_success 'gc stops traversal when a missing but promised object is reached' '
 362        rm -rf repo &&
 363        test_create_repo repo &&
 364        test_commit -C repo my_commit &&
 365
 366        TREE_HASH=$(git -C repo rev-parse HEAD^{tree}) &&
 367        HASH=$(promise_and_delete $TREE_HASH) &&
 368
 369        git -C repo config core.repositoryformatversion 1 &&
 370        git -C repo config extensions.partialclone "arbitrary string" &&
 371        git -C repo gc &&
 372
 373        # Ensure that the promisor packfile still exists, and remove it
 374        test -e repo/.git/objects/pack/pack-$HASH.pack &&
 375        rm repo/.git/objects/pack/pack-$HASH.* &&
 376
 377        # Ensure that the single other pack contains the commit, but not the tree
 378        ls repo/.git/objects/pack/pack-*.pack >packlist &&
 379        test_line_count = 1 packlist &&
 380        git verify-pack repo/.git/objects/pack/pack-*.pack -v >out &&
 381        grep "$(git -C repo rev-parse HEAD)" out &&
 382        ! grep "$TREE_HASH" out
 383'
 384
 385LIB_HTTPD_PORT=12345  # default port, 410, cannot be used as non-root
 386. "$TEST_DIRECTORY"/lib-httpd.sh
 387start_httpd
 388
 389test_expect_success 'fetching of missing objects from an HTTP server' '
 390        rm -rf repo &&
 391        SERVER="$HTTPD_DOCUMENT_ROOT_PATH/server" &&
 392        test_create_repo "$SERVER" &&
 393        test_commit -C "$SERVER" foo &&
 394        git -C "$SERVER" repack -a -d --write-bitmap-index &&
 395
 396        git clone $HTTPD_URL/smart/server repo &&
 397        HASH=$(git -C repo rev-parse foo) &&
 398        rm -rf repo/.git/objects/* &&
 399
 400        git -C repo config core.repositoryformatversion 1 &&
 401        git -C repo config extensions.partialclone "origin" &&
 402        git -C repo cat-file -p "$HASH" &&
 403
 404        # Ensure that the .promisor file is written, and check that its
 405        # associated packfile contains the object
 406        ls repo/.git/objects/pack/pack-*.promisor >promisorlist &&
 407        test_line_count = 1 promisorlist &&
 408        IDX=$(cat promisorlist | sed "s/promisor$/idx/") &&
 409        git verify-pack --verbose "$IDX" | grep "$HASH"
 410'
 411
 412stop_httpd
 413
 414test_done