t/t5537-fetch-shallow.sh

   1 #!/bin/sh
   2
   3 test_description='fetch/clone from a shallow clone'
   4
   5 . ./test-lib.sh
   6
   7 commit() {
   8         echo "$1" >tracked &&
   9         git add tracked &&
  10         git commit -m "$1"
  11 }
  12
  13 test_expect_success 'setup' '
  14         commit 1 &&
  15         commit 2 &&
  16         commit 3 &&
  17         commit 4 &&
  18         git config --global transfer.fsckObjects true &&
  19         test_oid_cache <<-EOF
  20         perl sha1:s/0034shallow %s/0036unshallow %s/
  21         perl sha256:s/004cshallow %s/004eunshallow %s/
  22         EOF
  23 '
  24
  25 test_expect_success 'setup shallow clone' '
  26         git clone --no-local --depth=2 .git shallow &&
  27         git --git-dir=shallow/.git log --format=%s >actual &&
  28         cat <<EOF >expect &&
  29 4
  30 3
  31 EOF
  32         test_cmp expect actual
  33 '
  34
  35 test_expect_success 'clone from shallow clone' '
  36         git clone --no-local shallow shallow2 &&
  37         (
  38         cd shallow2 &&
  39         git fsck &&
  40         git log --format=%s >actual &&
  41         cat <<EOF >expect &&
  42 4
  43 3
  44 EOF
  45         test_cmp expect actual
  46         )
  47 '
  48
  49 test_expect_success 'fetch from shallow clone' '
  50         (
  51         cd shallow &&
  52         commit 5
  53         ) &&
  54         (
  55         cd shallow2 &&
  56         git fetch &&
  57         git fsck &&
  58         git log --format=%s origin/master >actual &&
  59         cat <<EOF >expect &&
  60 5
  61 4
  62 3
  63 EOF
  64         test_cmp expect actual
  65         )
  66 '
  67
  68 test_expect_success 'fetch --depth from shallow clone' '
  69         (
  70         cd shallow &&
  71         commit 6
  72         ) &&
  73         (
  74         cd shallow2 &&
  75         git fetch --depth=2 &&
  76         git fsck &&
  77         git log --format=%s origin/master >actual &&
  78         cat <<EOF >expect &&
  79 6
  80 5
  81 EOF
  82         test_cmp expect actual
  83         )
  84 '
  85
  86 test_expect_success 'fetch --unshallow from shallow clone' '
  87         (
  88         cd shallow2 &&
  89         git fetch --unshallow &&
  90         git fsck &&
  91         git log --format=%s origin/master >actual &&
  92         cat <<EOF >expect &&
  93 6
  94 5
  95 4
  96 3
  97 EOF
  98         test_cmp expect actual
  99         )
 100 '
 101
 102 test_expect_success 'fetch something upstream has but hidden by clients shallow boundaries' '
 103         # the blob "1" is available in .git but hidden by the
 104         # shallow2/.git/shallow and it should be resent
 105         ! git --git-dir=shallow2/.git cat-file blob $(echo 1|git hash-object --stdin) >/dev/null &&
 106         echo 1 >1.t &&
 107         git add 1.t &&
 108         git commit -m add-1-back &&
 109         (
 110         cd shallow2 &&
 111         git fetch ../.git +refs/heads/master:refs/remotes/top/master &&
 112         git fsck &&
 113         git log --format=%s top/master >actual &&
 114         cat <<EOF >expect &&
 115 add-1-back
 116 4
 117 3
 118 EOF
 119         test_cmp expect actual
 120         ) &&
 121         git --git-dir=shallow2/.git cat-file blob $(echo 1|git hash-object --stdin) >/dev/null
 122
 123 '
 124
 125 test_expect_success 'fetch that requires changes in .git/shallow is filtered' '
 126         (
 127         cd shallow &&
 128         git checkout --orphan no-shallow &&
 129         commit no-shallow
 130         ) &&
 131         git init notshallow &&
 132         (
 133         cd notshallow &&
 134         git fetch ../shallow/.git refs/heads/*:refs/remotes/shallow/* &&
 135         git for-each-ref --format="%(refname)" >actual.refs &&
 136         cat <<EOF >expect.refs &&
 137 refs/remotes/shallow/no-shallow
 138 EOF
 139         test_cmp expect.refs actual.refs &&
 140         git log --format=%s shallow/no-shallow >actual &&
 141         cat <<EOF >expect &&
 142 no-shallow
 143 EOF
 144         test_cmp expect actual
 145         )
 146 '
 147
 148 test_expect_success 'fetch --update-shallow' '
 149         (
 150         cd shallow &&
 151         git checkout master &&
 152         commit 7 &&
 153         git tag -m foo heavy-tag HEAD^ &&
 154         git tag light-tag HEAD^:tracked
 155         ) &&
 156         (
 157         cd notshallow &&
 158         git fetch --update-shallow ../shallow/.git refs/heads/*:refs/remotes/shallow/* &&
 159         git fsck &&
 160         git for-each-ref --sort=refname --format="%(refname)" >actual.refs &&
 161         cat <<EOF >expect.refs &&
 162 refs/remotes/shallow/master
 163 refs/remotes/shallow/no-shallow
 164 refs/tags/heavy-tag
 165 refs/tags/light-tag
 166 EOF
 167         test_cmp expect.refs actual.refs &&
 168         git log --format=%s shallow/master >actual &&
 169         cat <<EOF >expect &&
 170 7
 171 6
 172 5
 173 4
 174 3
 175 EOF
 176         test_cmp expect actual
 177         )
 178 '
 179
 180 test_expect_success POSIXPERM,SANITY 'shallow fetch from a read-only repo' '
 181         cp -R .git read-only.git &&
 182         test_when_finished "find read-only.git -type d -print | xargs chmod +w" &&
 183         find read-only.git -print | xargs chmod -w &&
 184         git clone --no-local --depth=2 read-only.git from-read-only &&
 185         git --git-dir=from-read-only/.git log --format=%s >actual &&
 186         cat >expect <<EOF &&
 187 add-1-back
 188 4
 189 EOF
 190         test_cmp expect actual
 191 '
 192
 193 test_expect_success '.git/shallow is edited by repack' '
 194         git init shallow-server &&
 195         test_commit -C shallow-server A &&
 196         test_commit -C shallow-server B &&
 197         git -C shallow-server checkout -b branch &&
 198         test_commit -C shallow-server C &&
 199         test_commit -C shallow-server E &&
 200         test_commit -C shallow-server D &&
 201         d="$(git -C shallow-server rev-parse --verify D^0)" &&
 202         git -C shallow-server checkout master &&
 203
 204         git clone --depth=1 --no-tags --no-single-branch \
 205                 "file://$PWD/shallow-server" shallow-client &&
 206
 207         : now remove the branch and fetch with prune &&
 208         git -C shallow-server branch -D branch &&
 209         git -C shallow-client fetch --prune --depth=1 \
 210                 origin "+refs/heads/*:refs/remotes/origin/*" &&
 211         git -C shallow-client repack -adfl &&
 212         test_must_fail git -C shallow-client rev-parse --verify $d^0 &&
 213         ! grep $d shallow-client/.git/shallow &&
 214
 215         git -C shallow-server branch branch-orig $d &&
 216         git -C shallow-client fetch --prune --depth=2 \
 217                 origin "+refs/heads/*:refs/remotes/origin/*"
 218 '
 219
 220 . "$TEST_DIRECTORY"/lib-httpd.sh
 221 start_httpd
 222
 223 REPO="$HTTPD_DOCUMENT_ROOT_PATH/repo"
 224
 225 test_expect_success 'shallow fetches check connectivity before writing shallow file' '
 226         rm -rf "$REPO" client &&
 227
 228         git init "$REPO" &&
 229         test_commit -C "$REPO" one &&
 230         test_commit -C "$REPO" two &&
 231         test_commit -C "$REPO" three &&
 232
 233         git init client &&
 234
 235         # Use protocol v2 to ensure that shallow information is sent exactly
 236         # once by the server, since we are planning to manipulate it.
 237         git -C "$REPO" config protocol.version 2 &&
 238         git -C client config protocol.version 2 &&
 239
 240         git -C client fetch --depth=2 "$HTTPD_URL/one_time_perl/repo" master:a_branch &&
 241
 242         # Craft a situation in which the server sends back an unshallow request
 243         # with an empty packfile. This is done by refetching with a shorter
 244         # depth (to ensure that the packfile is empty), and overwriting the
 245         # shallow line in the response with the unshallow line we want.
 246         printf "$(test_oid perl)" \
 247                "$(git -C "$REPO" rev-parse HEAD)" \
 248                "$(git -C "$REPO" rev-parse HEAD^)" \
 249                >"$HTTPD_ROOT_PATH/one-time-perl" &&
 250         test_must_fail env GIT_TEST_SIDEBAND_ALL=0 git -C client \
 251                 fetch --depth=1 "$HTTPD_URL/one_time_perl/repo" \
 252                 master:a_branch &&
 253
 254         # Ensure that the one-time-perl script was used.
 255         ! test -e "$HTTPD_ROOT_PATH/one-time-perl" &&
 256
 257         # Ensure that the resulting repo is consistent, despite our failure to
 258         # fetch.
 259         git -C client fsck
 260 '
 261
 262 # DO NOT add non-httpd-specific tests here, because the last part of this
 263 # test script is only executed when httpd is available and enabled.
 264
 265 test_done