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 "$HASH"
  24}
  25
  26test_expect_success 'missing reflog object, but promised by a commit, passes fsck' '
  27        test_create_repo repo &&
  28        test_commit -C repo my_commit &&
  29
  30        A=$(git -C repo commit-tree -m a HEAD^{tree}) &&
  31        C=$(git -C repo commit-tree -m c -p $A HEAD^{tree}) &&
  32
  33        # Reference $A only from reflog, and delete it
  34        git -C repo branch my_branch "$A" &&
  35        git -C repo branch -f my_branch my_commit &&
  36        delete_object repo "$A" &&
  37
  38        # State that we got $C, which refers to $A, from promisor
  39        printf "$C\n" | pack_as_from_promisor &&
  40
  41        # Normally, it fails
  42        test_must_fail git -C repo fsck &&
  43
  44        # But with the extension, it succeeds
  45        git -C repo config core.repositoryformatversion 1 &&
  46        git -C repo config extensions.partialclone "arbitrary string" &&
  47        git -C repo fsck
  48'
  49
  50test_expect_success 'missing reflog object, but promised by a tag, passes fsck' '
  51        rm -rf repo &&
  52        test_create_repo repo &&
  53        test_commit -C repo my_commit &&
  54
  55        A=$(git -C repo commit-tree -m a HEAD^{tree}) &&
  56        git -C repo tag -a -m d my_tag_name $A &&
  57        T=$(git -C repo rev-parse my_tag_name) &&
  58        git -C repo tag -d my_tag_name &&
  59
  60        # Reference $A only from reflog, and delete it
  61        git -C repo branch my_branch "$A" &&
  62        git -C repo branch -f my_branch my_commit &&
  63        delete_object repo "$A" &&
  64
  65        # State that we got $T, which refers to $A, from promisor
  66        printf "$T\n" | pack_as_from_promisor &&
  67
  68        git -C repo config core.repositoryformatversion 1 &&
  69        git -C repo config extensions.partialclone "arbitrary string" &&
  70        git -C repo fsck
  71'
  72
  73test_expect_success 'missing reflog object alone fails fsck, even with extension set' '
  74        rm -rf repo &&
  75        test_create_repo repo &&
  76        test_commit -C repo my_commit &&
  77
  78        A=$(git -C repo commit-tree -m a HEAD^{tree}) &&
  79        B=$(git -C repo commit-tree -m b HEAD^{tree}) &&
  80
  81        # Reference $A only from reflog, and delete it
  82        git -C repo branch my_branch "$A" &&
  83        git -C repo branch -f my_branch my_commit &&
  84        delete_object repo "$A" &&
  85
  86        git -C repo config core.repositoryformatversion 1 &&
  87        git -C repo config extensions.partialclone "arbitrary string" &&
  88        test_must_fail git -C repo fsck
  89'
  90
  91test_expect_success 'missing ref object, but promised, passes fsck' '
  92        rm -rf repo &&
  93        test_create_repo repo &&
  94        test_commit -C repo my_commit &&
  95
  96        A=$(git -C repo commit-tree -m a HEAD^{tree}) &&
  97
  98        # Reference $A only from ref
  99        git -C repo branch my_branch "$A" &&
 100        promise_and_delete "$A" &&
 101
 102        git -C repo config core.repositoryformatversion 1 &&
 103        git -C repo config extensions.partialclone "arbitrary string" &&
 104        git -C repo fsck
 105'
 106
 107test_expect_success 'missing object, but promised, passes fsck' '
 108        rm -rf repo &&
 109        test_create_repo repo &&
 110        test_commit -C repo 1 &&
 111        test_commit -C repo 2 &&
 112        test_commit -C repo 3 &&
 113        git -C repo tag -a annotated_tag -m "annotated tag" &&
 114
 115        C=$(git -C repo rev-parse 1) &&
 116        T=$(git -C repo rev-parse 2^{tree}) &&
 117        B=$(git hash-object repo/3.t) &&
 118        AT=$(git -C repo rev-parse annotated_tag) &&
 119
 120        promise_and_delete "$C" &&
 121        promise_and_delete "$T" &&
 122        promise_and_delete "$B" &&
 123        promise_and_delete "$AT" &&
 124
 125        git -C repo config core.repositoryformatversion 1 &&
 126        git -C repo config extensions.partialclone "arbitrary string" &&
 127        git -C repo fsck
 128'
 129
 130test_expect_success 'missing CLI object, but promised, passes fsck' '
 131        rm -rf repo &&
 132        test_create_repo repo &&
 133        test_commit -C repo my_commit &&
 134
 135        A=$(git -C repo commit-tree -m a HEAD^{tree}) &&
 136        promise_and_delete "$A" &&
 137
 138        git -C repo config core.repositoryformatversion 1 &&
 139        git -C repo config extensions.partialclone "arbitrary string" &&
 140        git -C repo fsck "$A"
 141'
 142
 143test_expect_success 'fetching of missing objects' '
 144        rm -rf repo &&
 145        test_create_repo server &&
 146        test_commit -C server foo &&
 147        git -C server repack -a -d --write-bitmap-index &&
 148
 149        git clone "file://$(pwd)/server" repo &&
 150        HASH=$(git -C repo rev-parse foo) &&
 151        rm -rf repo/.git/objects/* &&
 152
 153        git -C repo config core.repositoryformatversion 1 &&
 154        git -C repo config extensions.partialclone "origin" &&
 155        git -C repo cat-file -p "$HASH" &&
 156
 157        # Ensure that the .promisor file is written, and check that its
 158        # associated packfile contains the object
 159        ls repo/.git/objects/pack/pack-*.promisor >promisorlist &&
 160        test_line_count = 1 promisorlist &&
 161        IDX=$(cat promisorlist | sed "s/promisor$/idx/") &&
 162        git verify-pack --verbose "$IDX" | grep "$HASH"
 163'
 164
 165test_expect_success 'rev-list stops traversal at missing and promised commit' '
 166        rm -rf repo &&
 167        test_create_repo repo &&
 168        test_commit -C repo foo &&
 169        test_commit -C repo bar &&
 170
 171        FOO=$(git -C repo rev-parse foo) &&
 172        promise_and_delete "$FOO" &&
 173
 174        git -C repo config core.repositoryformatversion 1 &&
 175        git -C repo config extensions.partialclone "arbitrary string" &&
 176        git -C repo rev-list --exclude-promisor-objects --objects bar >out &&
 177        grep $(git -C repo rev-parse bar) out &&
 178        ! grep $FOO out
 179'
 180
 181test_expect_success 'rev-list stops traversal at missing and promised tree' '
 182        rm -rf repo &&
 183        test_create_repo repo &&
 184        test_commit -C repo foo &&
 185        mkdir repo/a_dir &&
 186        echo something >repo/a_dir/something &&
 187        git -C repo add a_dir/something &&
 188        git -C repo commit -m bar &&
 189
 190        # foo^{tree} (tree referenced from commit)
 191        TREE=$(git -C repo rev-parse foo^{tree}) &&
 192
 193        # a tree referenced by HEAD^{tree} (tree referenced from tree)
 194        TREE2=$(git -C repo ls-tree HEAD^{tree} | grep " tree " | head -1 | cut -b13-52) &&
 195
 196        promise_and_delete "$TREE" &&
 197        promise_and_delete "$TREE2" &&
 198
 199        git -C repo config core.repositoryformatversion 1 &&
 200        git -C repo config extensions.partialclone "arbitrary string" &&
 201        git -C repo rev-list --exclude-promisor-objects --objects HEAD >out &&
 202        grep $(git -C repo rev-parse foo) out &&
 203        ! grep $TREE out &&
 204        grep $(git -C repo rev-parse HEAD) out &&
 205        ! grep $TREE2 out
 206'
 207
 208test_expect_success 'rev-list stops traversal at missing and promised blob' '
 209        rm -rf repo &&
 210        test_create_repo repo &&
 211        echo something >repo/something &&
 212        git -C repo add something &&
 213        git -C repo commit -m foo &&
 214
 215        BLOB=$(git -C repo hash-object -w something) &&
 216        promise_and_delete "$BLOB" &&
 217
 218        git -C repo config core.repositoryformatversion 1 &&
 219        git -C repo config extensions.partialclone "arbitrary string" &&
 220        git -C repo rev-list --exclude-promisor-objects --objects HEAD >out &&
 221        grep $(git -C repo rev-parse HEAD) out &&
 222        ! grep $BLOB out
 223'
 224
 225test_expect_success 'rev-list stops traversal at promisor commit, tree, and blob' '
 226        rm -rf repo &&
 227        test_create_repo repo &&
 228        test_commit -C repo foo &&
 229        test_commit -C repo bar &&
 230        test_commit -C repo baz &&
 231
 232        COMMIT=$(git -C repo rev-parse foo) &&
 233        TREE=$(git -C repo rev-parse bar^{tree}) &&
 234        BLOB=$(git hash-object repo/baz.t) &&
 235        printf "%s\n%s\n%s\n" $COMMIT $TREE $BLOB | pack_as_from_promisor &&
 236
 237        git -C repo config core.repositoryformatversion 1 &&
 238        git -C repo config extensions.partialclone "arbitrary string" &&
 239        git -C repo rev-list --exclude-promisor-objects --objects HEAD >out &&
 240        ! grep $COMMIT out &&
 241        ! grep $TREE out &&
 242        ! grep $BLOB out &&
 243        grep $(git -C repo rev-parse bar) out  # sanity check that some walking was done
 244'
 245
 246test_expect_success 'rev-list accepts missing and promised objects on command line' '
 247        rm -rf repo &&
 248        test_create_repo repo &&
 249        test_commit -C repo foo &&
 250        test_commit -C repo bar &&
 251        test_commit -C repo baz &&
 252
 253        COMMIT=$(git -C repo rev-parse foo) &&
 254        TREE=$(git -C repo rev-parse bar^{tree}) &&
 255        BLOB=$(git hash-object repo/baz.t) &&
 256
 257        promise_and_delete $COMMIT &&
 258        promise_and_delete $TREE &&
 259        promise_and_delete $BLOB &&
 260
 261        git -C repo config core.repositoryformatversion 1 &&
 262        git -C repo config extensions.partialclone "arbitrary string" &&
 263        git -C repo rev-list --exclude-promisor-objects --objects "$COMMIT" "$TREE" "$BLOB"
 264'
 265
 266test_expect_success 'gc does not repack promisor objects' '
 267        rm -rf repo &&
 268        test_create_repo repo &&
 269        test_commit -C repo my_commit &&
 270
 271        TREE_HASH=$(git -C repo rev-parse HEAD^{tree}) &&
 272        HASH=$(printf "$TREE_HASH\n" | pack_as_from_promisor) &&
 273
 274        git -C repo config core.repositoryformatversion 1 &&
 275        git -C repo config extensions.partialclone "arbitrary string" &&
 276        git -C repo gc &&
 277
 278        # Ensure that the promisor packfile still exists, and remove it
 279        test -e repo/.git/objects/pack/pack-$HASH.pack &&
 280        rm repo/.git/objects/pack/pack-$HASH.* &&
 281
 282        # Ensure that the single other pack contains the commit, but not the tree
 283        ls repo/.git/objects/pack/pack-*.pack >packlist &&
 284        test_line_count = 1 packlist &&
 285        git verify-pack repo/.git/objects/pack/pack-*.pack -v >out &&
 286        grep "$(git -C repo rev-parse HEAD)" out &&
 287        ! grep "$TREE_HASH" out
 288'
 289
 290test_expect_success 'gc stops traversal when a missing but promised object is reached' '
 291        rm -rf repo &&
 292        test_create_repo repo &&
 293        test_commit -C repo my_commit &&
 294
 295        TREE_HASH=$(git -C repo rev-parse HEAD^{tree}) &&
 296        HASH=$(promise_and_delete $TREE_HASH) &&
 297
 298        git -C repo config core.repositoryformatversion 1 &&
 299        git -C repo config extensions.partialclone "arbitrary string" &&
 300        git -C repo gc &&
 301
 302        # Ensure that the promisor packfile still exists, and remove it
 303        test -e repo/.git/objects/pack/pack-$HASH.pack &&
 304        rm repo/.git/objects/pack/pack-$HASH.* &&
 305
 306        # Ensure that the single other pack contains the commit, but not the tree
 307        ls repo/.git/objects/pack/pack-*.pack >packlist &&
 308        test_line_count = 1 packlist &&
 309        git verify-pack repo/.git/objects/pack/pack-*.pack -v >out &&
 310        grep "$(git -C repo rev-parse HEAD)" out &&
 311        ! grep "$TREE_HASH" out
 312'
 313
 314LIB_HTTPD_PORT=12345  # default port, 410, cannot be used as non-root
 315. "$TEST_DIRECTORY"/lib-httpd.sh
 316start_httpd
 317
 318test_expect_success 'fetching of missing objects from an HTTP server' '
 319        rm -rf repo &&
 320        SERVER="$HTTPD_DOCUMENT_ROOT_PATH/server" &&
 321        test_create_repo "$SERVER" &&
 322        test_commit -C "$SERVER" foo &&
 323        git -C "$SERVER" repack -a -d --write-bitmap-index &&
 324
 325        git clone $HTTPD_URL/smart/server repo &&
 326        HASH=$(git -C repo rev-parse foo) &&
 327        rm -rf repo/.git/objects/* &&
 328
 329        git -C repo config core.repositoryformatversion 1 &&
 330        git -C repo config extensions.partialclone "origin" &&
 331        git -C repo cat-file -p "$HASH" &&
 332
 333        # Ensure that the .promisor file is written, and check that its
 334        # associated packfile contains the object
 335        ls repo/.git/objects/pack/pack-*.promisor >promisorlist &&
 336        test_line_count = 1 promisorlist &&
 337        IDX=$(cat promisorlist | sed "s/promisor$/idx/") &&
 338        git verify-pack --verbose "$IDX" | grep "$HASH"
 339'
 340
 341stop_httpd
 342
 343test_done