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 "$HASH"
 171 '
 172
 173 test_expect_success 'rev-list stops traversal at missing and promised commit' '
 174         rm -rf repo &&
 175         test_create_repo repo &&
 176         test_commit -C repo foo &&
 177         test_commit -C repo bar &&
 178
 179         FOO=$(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 -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
 189 test_expect_success 'missing tree objects with --missing=allow-promisor and --exclude-promisor-objects' '
 190         rm -rf repo &&
 191         test_create_repo repo &&
 192         test_commit -C repo foo &&
 193         test_commit -C repo bar &&
 194         test_commit -C repo baz &&
 195
 196         promise_and_delete $(git -C repo rev-parse bar^{tree}) &&
 197         promise_and_delete $(git -C repo rev-parse foo^{tree}) &&
 198
 199         git -C repo config core.repositoryformatversion 1 &&
 200         git -C repo config extensions.partialclone "arbitrary string" &&
 201
 202         git -C repo rev-list --missing=allow-promisor --objects HEAD >objs 2>rev_list_err &&
 203         test_must_be_empty rev_list_err &&
 204         # 3 commits, 3 blobs, and 1 tree
 205         test_line_count = 7 objs &&
 206
 207         # Do the same for --exclude-promisor-objects, but with all trees gone.
 208         promise_and_delete $(git -C repo rev-parse baz^{tree}) &&
 209         git -C repo rev-list --exclude-promisor-objects --objects HEAD >objs 2>rev_list_err &&
 210         test_must_be_empty rev_list_err &&
 211         # 3 commits, no blobs or trees
 212         test_line_count = 3 objs
 213 '
 214
 215 test_expect_success 'missing non-root tree object and rev-list' '
 216         rm -rf repo &&
 217         test_create_repo repo &&
 218         mkdir repo/dir &&
 219         echo foo >repo/dir/foo &&
 220         git -C repo add dir/foo &&
 221         git -C repo commit -m "commit dir/foo" &&
 222
 223         promise_and_delete $(git -C repo rev-parse HEAD:dir) &&
 224
 225         git -C repo config core.repositoryformatversion 1 &&
 226         git -C repo config extensions.partialclone "arbitrary string" &&
 227
 228         git -C repo rev-list --missing=allow-any --objects HEAD >objs 2>rev_list_err &&
 229         test_must_be_empty rev_list_err &&
 230         # 1 commit and 1 tree
 231         test_line_count = 2 objs
 232 '
 233
 234 test_expect_success 'rev-list stops traversal at missing and promised tree' '
 235         rm -rf repo &&
 236         test_create_repo repo &&
 237         test_commit -C repo foo &&
 238         mkdir repo/a_dir &&
 239         echo something >repo/a_dir/something &&
 240         git -C repo add a_dir/something &&
 241         git -C repo commit -m bar &&
 242
 243         # foo^{tree} (tree referenced from commit)
 244         TREE=$(git -C repo rev-parse foo^{tree}) &&
 245
 246         # a tree referenced by HEAD^{tree} (tree referenced from tree)
 247         TREE2=$(git -C repo ls-tree HEAD^{tree} | grep " tree " | head -1 | cut -b13-52) &&
 248
 249         promise_and_delete "$TREE" &&
 250         promise_and_delete "$TREE2" &&
 251
 252         git -C repo config core.repositoryformatversion 1 &&
 253         git -C repo config extensions.partialclone "arbitrary string" &&
 254         git -C repo rev-list --exclude-promisor-objects --objects HEAD >out &&
 255         grep $(git -C repo rev-parse foo) out &&
 256         ! grep $TREE out &&
 257         grep $(git -C repo rev-parse HEAD) out &&
 258         ! grep $TREE2 out
 259 '
 260
 261 test_expect_success 'rev-list stops traversal at missing and promised blob' '
 262         rm -rf repo &&
 263         test_create_repo repo &&
 264         echo something >repo/something &&
 265         git -C repo add something &&
 266         git -C repo commit -m foo &&
 267
 268         BLOB=$(git -C repo hash-object -w something) &&
 269         promise_and_delete "$BLOB" &&
 270
 271         git -C repo config core.repositoryformatversion 1 &&
 272         git -C repo config extensions.partialclone "arbitrary string" &&
 273         git -C repo rev-list --exclude-promisor-objects --objects HEAD >out &&
 274         grep $(git -C repo rev-parse HEAD) out &&
 275         ! grep $BLOB out
 276 '
 277
 278 test_expect_success 'rev-list stops traversal at promisor commit, tree, and blob' '
 279         rm -rf repo &&
 280         test_create_repo repo &&
 281         test_commit -C repo foo &&
 282         test_commit -C repo bar &&
 283         test_commit -C repo baz &&
 284
 285         COMMIT=$(git -C repo rev-parse foo) &&
 286         TREE=$(git -C repo rev-parse bar^{tree}) &&
 287         BLOB=$(git hash-object repo/baz.t) &&
 288         printf "%s\n%s\n%s\n" $COMMIT $TREE $BLOB | pack_as_from_promisor &&
 289
 290         git -C repo config core.repositoryformatversion 1 &&
 291         git -C repo config extensions.partialclone "arbitrary string" &&
 292         git -C repo rev-list --exclude-promisor-objects --objects HEAD >out &&
 293         ! grep $COMMIT out &&
 294         ! grep $TREE out &&
 295         ! grep $BLOB out &&
 296         grep $(git -C repo rev-parse bar) out  # sanity check that some walking was done
 297 '
 298
 299 test_expect_success 'rev-list accepts missing and promised objects on command line' '
 300         rm -rf repo &&
 301         test_create_repo repo &&
 302         test_commit -C repo foo &&
 303         test_commit -C repo bar &&
 304         test_commit -C repo baz &&
 305
 306         COMMIT=$(git -C repo rev-parse foo) &&
 307         TREE=$(git -C repo rev-parse bar^{tree}) &&
 308         BLOB=$(git hash-object repo/baz.t) &&
 309
 310         promise_and_delete $COMMIT &&
 311         promise_and_delete $TREE &&
 312         promise_and_delete $BLOB &&
 313
 314         git -C repo config core.repositoryformatversion 1 &&
 315         git -C repo config extensions.partialclone "arbitrary string" &&
 316         git -C repo rev-list --exclude-promisor-objects --objects "$COMMIT" "$TREE" "$BLOB"
 317 '
 318
 319 test_expect_success 'gc does not repack promisor objects' '
 320         rm -rf repo &&
 321         test_create_repo repo &&
 322         test_commit -C repo my_commit &&
 323
 324         TREE_HASH=$(git -C repo rev-parse HEAD^{tree}) &&
 325         HASH=$(printf "$TREE_HASH\n" | pack_as_from_promisor) &&
 326
 327         git -C repo config core.repositoryformatversion 1 &&
 328         git -C repo config extensions.partialclone "arbitrary string" &&
 329         git -C repo gc &&
 330
 331         # Ensure that the promisor packfile still exists, and remove it
 332         test -e repo/.git/objects/pack/pack-$HASH.pack &&
 333         rm repo/.git/objects/pack/pack-$HASH.* &&
 334
 335         # Ensure that the single other pack contains the commit, but not the tree
 336         ls repo/.git/objects/pack/pack-*.pack >packlist &&
 337         test_line_count = 1 packlist &&
 338         git verify-pack repo/.git/objects/pack/pack-*.pack -v >out &&
 339         grep "$(git -C repo rev-parse HEAD)" out &&
 340         ! grep "$TREE_HASH" out
 341 '
 342
 343 test_expect_success 'gc stops traversal when a missing but promised object is reached' '
 344         rm -rf repo &&
 345         test_create_repo repo &&
 346         test_commit -C repo my_commit &&
 347
 348         TREE_HASH=$(git -C repo rev-parse HEAD^{tree}) &&
 349         HASH=$(promise_and_delete $TREE_HASH) &&
 350
 351         git -C repo config core.repositoryformatversion 1 &&
 352         git -C repo config extensions.partialclone "arbitrary string" &&
 353         git -C repo gc &&
 354
 355         # Ensure that the promisor packfile still exists, and remove it
 356         test -e repo/.git/objects/pack/pack-$HASH.pack &&
 357         rm repo/.git/objects/pack/pack-$HASH.* &&
 358
 359         # Ensure that the single other pack contains the commit, but not the tree
 360         ls repo/.git/objects/pack/pack-*.pack >packlist &&
 361         test_line_count = 1 packlist &&
 362         git verify-pack repo/.git/objects/pack/pack-*.pack -v >out &&
 363         grep "$(git -C repo rev-parse HEAD)" out &&
 364         ! grep "$TREE_HASH" out
 365 '
 366
 367 LIB_HTTPD_PORT=12345  # default port, 410, cannot be used as non-root
 368 . "$TEST_DIRECTORY"/lib-httpd.sh
 369 start_httpd
 370
 371 test_expect_success 'fetching of missing objects from an HTTP server' '
 372         rm -rf repo &&
 373         SERVER="$HTTPD_DOCUMENT_ROOT_PATH/server" &&
 374         test_create_repo "$SERVER" &&
 375         test_commit -C "$SERVER" foo &&
 376         git -C "$SERVER" repack -a -d --write-bitmap-index &&
 377
 378         git clone $HTTPD_URL/smart/server repo &&
 379         HASH=$(git -C repo rev-parse foo) &&
 380         rm -rf repo/.git/objects/* &&
 381
 382         git -C repo config core.repositoryformatversion 1 &&
 383         git -C repo config extensions.partialclone "origin" &&
 384         git -C repo cat-file -p "$HASH" &&
 385
 386         # Ensure that the .promisor file is written, and check that its
 387         # associated packfile contains the object
 388         ls repo/.git/objects/pack/pack-*.promisor >promisorlist &&
 389         test_line_count = 1 promisorlist &&
 390         IDX=$(cat promisorlist | sed "s/promisor$/idx/") &&
 391         git verify-pack --verbose "$IDX" | grep "$HASH"
 392 '
 393
 394 stop_httpd
 395
 396 test_done