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-$HASH.promisor
  14 }
  15
  16 promise_and_delete () {
  17         HASH=$(git -C repo rev-parse "$1") &&
  18         git -C repo tag -a -m message my_annotated_tag "$HASH" &&
  19         git -C repo rev-parse my_annotated_tag | pack_as_from_promisor &&
  20         git -C repo tag -d my_annotated_tag &&
  21         delete_object repo "$HASH"
  22 }
  23
  24 test_expect_success 'missing reflog object, but promised by a commit, passes fsck' '
  25         test_create_repo repo &&
  26         test_commit -C repo my_commit &&
  27
  28         A=$(git -C repo commit-tree -m a HEAD^{tree}) &&
  29         C=$(git -C repo commit-tree -m c -p $A HEAD^{tree}) &&
  30
  31         # Reference $A only from reflog, and delete it
  32         git -C repo branch my_branch "$A" &&
  33         git -C repo branch -f my_branch my_commit &&
  34         delete_object repo "$A" &&
  35
  36         # State that we got $C, which refers to $A, from promisor
  37         printf "$C\n" | pack_as_from_promisor &&
  38
  39         # Normally, it fails
  40         test_must_fail git -C repo fsck &&
  41
  42         # But with the extension, it succeeds
  43         git -C repo config core.repositoryformatversion 1 &&
  44         git -C repo config extensions.partialclone "arbitrary string" &&
  45         git -C repo fsck
  46 '
  47
  48 test_expect_success 'missing reflog object, but promised by a tag, passes fsck' '
  49         rm -rf repo &&
  50         test_create_repo repo &&
  51         test_commit -C repo my_commit &&
  52
  53         A=$(git -C repo commit-tree -m a HEAD^{tree}) &&
  54         git -C repo tag -a -m d my_tag_name $A &&
  55         T=$(git -C repo rev-parse my_tag_name) &&
  56         git -C repo tag -d my_tag_name &&
  57
  58         # Reference $A only from reflog, and delete it
  59         git -C repo branch my_branch "$A" &&
  60         git -C repo branch -f my_branch my_commit &&
  61         delete_object repo "$A" &&
  62
  63         # State that we got $T, which refers to $A, from promisor
  64         printf "$T\n" | pack_as_from_promisor &&
  65
  66         git -C repo config core.repositoryformatversion 1 &&
  67         git -C repo config extensions.partialclone "arbitrary string" &&
  68         git -C repo fsck
  69 '
  70
  71 test_expect_success 'missing reflog object alone fails fsck, even with extension set' '
  72         rm -rf repo &&
  73         test_create_repo repo &&
  74         test_commit -C repo my_commit &&
  75
  76         A=$(git -C repo commit-tree -m a HEAD^{tree}) &&
  77         B=$(git -C repo commit-tree -m b HEAD^{tree}) &&
  78
  79         # Reference $A only from reflog, and delete it
  80         git -C repo branch my_branch "$A" &&
  81         git -C repo branch -f my_branch my_commit &&
  82         delete_object repo "$A" &&
  83
  84         git -C repo config core.repositoryformatversion 1 &&
  85         git -C repo config extensions.partialclone "arbitrary string" &&
  86         test_must_fail git -C repo fsck
  87 '
  88
  89 test_expect_success 'missing ref object, but promised, passes fsck' '
  90         rm -rf repo &&
  91         test_create_repo repo &&
  92         test_commit -C repo my_commit &&
  93
  94         A=$(git -C repo commit-tree -m a HEAD^{tree}) &&
  95
  96         # Reference $A only from ref
  97         git -C repo branch my_branch "$A" &&
  98         promise_and_delete "$A" &&
  99
 100         git -C repo config core.repositoryformatversion 1 &&
 101         git -C repo config extensions.partialclone "arbitrary string" &&
 102         git -C repo fsck
 103 '
 104
 105 test_expect_success 'missing object, but promised, passes fsck' '
 106         rm -rf repo &&
 107         test_create_repo repo &&
 108         test_commit -C repo 1 &&
 109         test_commit -C repo 2 &&
 110         test_commit -C repo 3 &&
 111         git -C repo tag -a annotated_tag -m "annotated tag" &&
 112
 113         C=$(git -C repo rev-parse 1) &&
 114         T=$(git -C repo rev-parse 2^{tree}) &&
 115         B=$(git hash-object repo/3.t) &&
 116         AT=$(git -C repo rev-parse annotated_tag) &&
 117
 118         promise_and_delete "$C" &&
 119         promise_and_delete "$T" &&
 120         promise_and_delete "$B" &&
 121         promise_and_delete "$AT" &&
 122
 123         git -C repo config core.repositoryformatversion 1 &&
 124         git -C repo config extensions.partialclone "arbitrary string" &&
 125         git -C repo fsck
 126 '
 127
 128 test_expect_success 'missing CLI object, but promised, passes fsck' '
 129         rm -rf repo &&
 130         test_create_repo repo &&
 131         test_commit -C repo my_commit &&
 132
 133         A=$(git -C repo commit-tree -m a HEAD^{tree}) &&
 134         promise_and_delete "$A" &&
 135
 136         git -C repo config core.repositoryformatversion 1 &&
 137         git -C repo config extensions.partialclone "arbitrary string" &&
 138         git -C repo fsck "$A"
 139 '
 140
 141 test_expect_success 'fetching of missing objects' '
 142         rm -rf repo &&
 143         test_create_repo server &&
 144         test_commit -C server foo &&
 145         git -C server repack -a -d --write-bitmap-index &&
 146
 147         git clone "file://$(pwd)/server" repo &&
 148         HASH=$(git -C repo rev-parse foo) &&
 149         rm -rf repo/.git/objects/* &&
 150
 151         git -C repo config core.repositoryformatversion 1 &&
 152         git -C repo config extensions.partialclone "origin" &&
 153         git -C repo cat-file -p "$HASH" &&
 154
 155         # Ensure that the .promisor file is written, and check that its
 156         # associated packfile contains the object
 157         ls repo/.git/objects/pack/pack-*.promisor >promisorlist &&
 158         test_line_count = 1 promisorlist &&
 159         IDX=$(cat promisorlist | sed "s/promisor$/idx/") &&
 160         git verify-pack --verbose "$IDX" | grep "$HASH"
 161 '
 162
 163 test_expect_success 'rev-list stops traversal at missing and promised commit' '
 164         rm -rf repo &&
 165         test_create_repo repo &&
 166         test_commit -C repo foo &&
 167         test_commit -C repo bar &&
 168
 169         FOO=$(git -C repo rev-parse foo) &&
 170         promise_and_delete "$FOO" &&
 171
 172         git -C repo config core.repositoryformatversion 1 &&
 173         git -C repo config extensions.partialclone "arbitrary string" &&
 174         git -C repo rev-list --exclude-promisor-objects --objects bar >out &&
 175         grep $(git -C repo rev-parse bar) out &&
 176         ! grep $FOO out
 177 '
 178
 179 test_expect_success 'rev-list stops traversal at missing and promised tree' '
 180         rm -rf repo &&
 181         test_create_repo repo &&
 182         test_commit -C repo foo &&
 183         mkdir repo/a_dir &&
 184         echo something >repo/a_dir/something &&
 185         git -C repo add a_dir/something &&
 186         git -C repo commit -m bar &&
 187
 188         # foo^{tree} (tree referenced from commit)
 189         TREE=$(git -C repo rev-parse foo^{tree}) &&
 190
 191         # a tree referenced by HEAD^{tree} (tree referenced from tree)
 192         TREE2=$(git -C repo ls-tree HEAD^{tree} | grep " tree " | head -1 | cut -b13-52) &&
 193
 194         promise_and_delete "$TREE" &&
 195         promise_and_delete "$TREE2" &&
 196
 197         git -C repo config core.repositoryformatversion 1 &&
 198         git -C repo config extensions.partialclone "arbitrary string" &&
 199         git -C repo rev-list --exclude-promisor-objects --objects HEAD >out &&
 200         grep $(git -C repo rev-parse foo) out &&
 201         ! grep $TREE out &&
 202         grep $(git -C repo rev-parse HEAD) out &&
 203         ! grep $TREE2 out
 204 '
 205
 206 test_expect_success 'rev-list stops traversal at missing and promised blob' '
 207         rm -rf repo &&
 208         test_create_repo repo &&
 209         echo something >repo/something &&
 210         git -C repo add something &&
 211         git -C repo commit -m foo &&
 212
 213         BLOB=$(git -C repo hash-object -w something) &&
 214         promise_and_delete "$BLOB" &&
 215
 216         git -C repo config core.repositoryformatversion 1 &&
 217         git -C repo config extensions.partialclone "arbitrary string" &&
 218         git -C repo rev-list --exclude-promisor-objects --objects HEAD >out &&
 219         grep $(git -C repo rev-parse HEAD) out &&
 220         ! grep $BLOB out
 221 '
 222
 223 test_expect_success 'rev-list stops traversal at promisor commit, tree, and blob' '
 224         rm -rf repo &&
 225         test_create_repo repo &&
 226         test_commit -C repo foo &&
 227         test_commit -C repo bar &&
 228         test_commit -C repo baz &&
 229
 230         COMMIT=$(git -C repo rev-parse foo) &&
 231         TREE=$(git -C repo rev-parse bar^{tree}) &&
 232         BLOB=$(git hash-object repo/baz.t) &&
 233         printf "%s\n%s\n%s\n" $COMMIT $TREE $BLOB | pack_as_from_promisor &&
 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 HEAD >out &&
 238         ! grep $COMMIT out &&
 239         ! grep $TREE out &&
 240         ! grep $BLOB out &&
 241         grep $(git -C repo rev-parse bar) out  # sanity check that some walking was done
 242 '
 243
 244 test_expect_success 'rev-list accepts missing and promised objects on command line' '
 245         rm -rf repo &&
 246         test_create_repo repo &&
 247         test_commit -C repo foo &&
 248         test_commit -C repo bar &&
 249         test_commit -C repo baz &&
 250
 251         COMMIT=$(git -C repo rev-parse foo) &&
 252         TREE=$(git -C repo rev-parse bar^{tree}) &&
 253         BLOB=$(git hash-object repo/baz.t) &&
 254
 255         promise_and_delete $COMMIT &&
 256         promise_and_delete $TREE &&
 257         promise_and_delete $BLOB &&
 258
 259         git -C repo config core.repositoryformatversion 1 &&
 260         git -C repo config extensions.partialclone "arbitrary string" &&
 261         git -C repo rev-list --exclude-promisor-objects --objects "$COMMIT" "$TREE" "$BLOB"
 262 '
 263
 264 LIB_HTTPD_PORT=12345  # default port, 410, cannot be used as non-root
 265 . "$TEST_DIRECTORY"/lib-httpd.sh
 266 start_httpd
 267
 268 test_expect_success 'fetching of missing objects from an HTTP server' '
 269         rm -rf repo &&
 270         SERVER="$HTTPD_DOCUMENT_ROOT_PATH/server" &&
 271         test_create_repo "$SERVER" &&
 272         test_commit -C "$SERVER" foo &&
 273         git -C "$SERVER" repack -a -d --write-bitmap-index &&
 274
 275         git clone $HTTPD_URL/smart/server repo &&
 276         HASH=$(git -C repo rev-parse foo) &&
 277         rm -rf repo/.git/objects/* &&
 278
 279         git -C repo config core.repositoryformatversion 1 &&
 280         git -C repo config extensions.partialclone "origin" &&
 281         git -C repo cat-file -p "$HASH" &&
 282
 283         # Ensure that the .promisor file is written, and check that its
 284         # associated packfile contains the object
 285         ls repo/.git/objects/pack/pack-*.promisor >promisorlist &&
 286         test_line_count = 1 promisorlist &&
 287         IDX=$(cat promisorlist | sed "s/promisor$/idx/") &&
 288         git verify-pack --verbose "$IDX" | grep "$HASH"
 289 '
 290
 291 stop_httpd
 292
 293 test_done