t/t5400-send-pack.sh

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2005 Junio C Hamano
   4 #
   5
   6 test_description='See why rewinding head breaks send-pack
   7
   8 '
   9 GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
  10 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
  11
  12 . ./test-lib.sh
  13
  14 cnt=64
  15 test_expect_success setup '
  16         test_tick &&
  17         mkdir mozart mozart/is &&
  18         echo "Commit #0" >mozart/is/pink &&
  19         git update-index --add mozart/is/pink &&
  20         tree=$(git write-tree) &&
  21         commit=$(echo "Commit #0" | git commit-tree $tree) &&
  22         zero=$commit &&
  23         parent=$zero &&
  24         i=0 &&
  25         while test $i -le $cnt
  26         do
  27                 i=$(($i+1)) &&
  28                 test_tick &&
  29                 echo "Commit #$i" >mozart/is/pink &&
  30                 git update-index --add mozart/is/pink &&
  31                 tree=$(git write-tree) &&
  32                 commit=$(echo "Commit #$i" |
  33                          git commit-tree $tree -p $parent) &&
  34                 git update-ref refs/tags/commit$i $commit &&
  35                 parent=$commit || return 1
  36         done &&
  37         git update-ref HEAD "$commit" &&
  38         git clone ./. victim &&
  39         ( cd victim && git config receive.denyCurrentBranch warn && git log ) &&
  40         git update-ref HEAD "$zero" &&
  41         parent=$zero &&
  42         i=0 &&
  43         while test $i -le $cnt
  44         do
  45                 i=$(($i+1)) &&
  46                 test_tick &&
  47                 echo "Rebase #$i" >mozart/is/pink &&
  48                 git update-index --add mozart/is/pink &&
  49                 tree=$(git write-tree) &&
  50                 commit=$(echo "Rebase #$i" | git commit-tree $tree -p $parent) &&
  51                 git update-ref refs/tags/rebase$i $commit &&
  52                 parent=$commit || return 1
  53         done &&
  54         git update-ref HEAD "$commit" &&
  55         echo Rebase &&
  56         git log'
  57
  58 test_expect_success 'pack the source repository' '
  59         git repack -a -d &&
  60         git prune
  61 '
  62
  63 test_expect_success 'pack the destination repository' '
  64         (
  65                 cd victim &&
  66                 git repack -a -d &&
  67                 git prune
  68         )
  69 '
  70
  71 test_expect_success 'refuse pushing rewound head without --force' '
  72         pushed_head=$(git rev-parse --verify main) &&
  73         victim_orig=$(cd victim && git rev-parse --verify main) &&
  74         test_must_fail git send-pack ./victim main &&
  75         victim_head=$(cd victim && git rev-parse --verify main) &&
  76         test "$victim_head" = "$victim_orig" &&
  77         # this should update
  78         git send-pack --force ./victim main &&
  79         victim_head=$(cd victim && git rev-parse --verify main) &&
  80         test "$victim_head" = "$pushed_head"
  81 '
  82
  83 test_expect_success 'push can be used to delete a ref' '
  84         ( cd victim && git branch extra main ) &&
  85         git send-pack ./victim :extra main &&
  86         ( cd victim &&
  87           test_must_fail git rev-parse --verify extra )
  88 '
  89
  90 test_expect_success 'refuse deleting push with denyDeletes' '
  91         (
  92                 cd victim &&
  93                 test_might_fail git branch -D extra &&
  94                 git config receive.denyDeletes true &&
  95                 git branch extra main
  96         ) &&
  97         test_must_fail git send-pack ./victim :extra main
  98 '
  99
 100 test_expect_success 'cannot override denyDeletes with git -c send-pack' '
 101         (
 102                 cd victim &&
 103                 test_might_fail git branch -D extra &&
 104                 git config receive.denyDeletes true &&
 105                 git branch extra main
 106         ) &&
 107         test_must_fail git -c receive.denyDeletes=false \
 108                                         send-pack ./victim :extra main
 109 '
 110
 111 test_expect_success 'override denyDeletes with git -c receive-pack' '
 112         (
 113                 cd victim &&
 114                 test_might_fail git branch -D extra &&
 115                 git config receive.denyDeletes true &&
 116                 git branch extra main
 117         ) &&
 118         git send-pack \
 119                 --receive-pack="git -c receive.denyDeletes=false receive-pack" \
 120                 ./victim :extra main
 121 '
 122
 123 test_expect_success 'denyNonFastforwards trumps --force' '
 124         (
 125                 cd victim &&
 126                 test_might_fail git branch -D extra &&
 127                 git config receive.denyNonFastforwards true
 128         ) &&
 129         victim_orig=$(cd victim && git rev-parse --verify main) &&
 130         test_must_fail git send-pack --force ./victim main^:main &&
 131         victim_head=$(cd victim && git rev-parse --verify main) &&
 132         test "$victim_orig" = "$victim_head"
 133 '
 134
 135 test_expect_success 'send-pack --all sends all branches' '
 136         # make sure we have at least 2 branches with different
 137         # values, just to be thorough
 138         git branch other-branch HEAD^ &&
 139
 140         git init --bare all.git &&
 141         git send-pack --all all.git &&
 142         git for-each-ref refs/heads >expect &&
 143         git -C all.git for-each-ref refs/heads >actual &&
 144         test_cmp expect actual
 145 '
 146
 147 test_expect_success 'push --all excludes remote-tracking hierarchy' '
 148         mkdir parent &&
 149         (
 150                 cd parent &&
 151                 git init && : >file && git add file && git commit -m add
 152         ) &&
 153         git clone parent child &&
 154         (
 155                 cd child && git push --all
 156         ) &&
 157         (
 158                 cd parent &&
 159                 test -z "$(git for-each-ref refs/remotes/origin)"
 160         )
 161 '
 162
 163 test_expect_success 'receive-pack runs auto-gc in remote repo' '
 164         rm -rf parent child &&
 165         git init parent &&
 166         (
 167                 # Setup a repo with 2 packs
 168                 cd parent &&
 169                 echo "Some text" >file.txt &&
 170                 git add . &&
 171                 git commit -m "Initial commit" &&
 172                 git repack -adl &&
 173                 echo "Some more text" >>file.txt &&
 174                 git commit -a -m "Second commit" &&
 175                 git repack
 176         ) &&
 177         cp -R parent child &&
 178         (
 179                 # Set the child to auto-pack if more than one pack exists
 180                 cd child &&
 181                 git config gc.autopacklimit 1 &&
 182                 git config gc.autodetach false &&
 183                 git branch test_auto_gc &&
 184                 # And create a file that follows the temporary object naming
 185                 # convention for the auto-gc to remove
 186                 : >.git/objects/tmp_test_object &&
 187                 test-tool chmtime =-1209601 .git/objects/tmp_test_object
 188         ) &&
 189         (
 190                 cd parent &&
 191                 echo "Even more text" >>file.txt &&
 192                 git commit -a -m "Third commit" &&
 193                 git send-pack ../child HEAD:refs/heads/test_auto_gc
 194         ) &&
 195         test ! -e child/.git/objects/tmp_test_object
 196 '
 197
 198 rewound_push_setup() {
 199         rm -rf parent child &&
 200         mkdir parent &&
 201         (
 202                 cd parent &&
 203                 git init &&
 204                 echo one >file && git add file && git commit -m one &&
 205                 git config receive.denyCurrentBranch warn &&
 206                 echo two >file && git commit -a -m two
 207         ) &&
 208         git clone parent child &&
 209         (
 210                 cd child && git reset --hard HEAD^
 211         )
 212 }
 213
 214 test_expect_success 'pushing explicit refspecs respects forcing' '
 215         rewound_push_setup &&
 216         parent_orig=$(cd parent && git rev-parse --verify main) &&
 217         (
 218                 cd child &&
 219                 test_must_fail git send-pack ../parent \
 220                         refs/heads/main:refs/heads/main
 221         ) &&
 222         parent_head=$(cd parent && git rev-parse --verify main) &&
 223         test "$parent_orig" = "$parent_head" &&
 224         (
 225                 cd child &&
 226                 git send-pack ../parent \
 227                         +refs/heads/main:refs/heads/main
 228         ) &&
 229         parent_head=$(cd parent && git rev-parse --verify main) &&
 230         child_head=$(cd child && git rev-parse --verify main) &&
 231         test "$parent_head" = "$child_head"
 232 '
 233
 234 test_expect_success 'pushing wildcard refspecs respects forcing' '
 235         rewound_push_setup &&
 236         parent_orig=$(cd parent && git rev-parse --verify main) &&
 237         (
 238                 cd child &&
 239                 test_must_fail git send-pack ../parent \
 240                         "refs/heads/*:refs/heads/*"
 241         ) &&
 242         parent_head=$(cd parent && git rev-parse --verify main) &&
 243         test "$parent_orig" = "$parent_head" &&
 244         (
 245                 cd child &&
 246                 git send-pack ../parent \
 247                         "+refs/heads/*:refs/heads/*"
 248         ) &&
 249         parent_head=$(cd parent && git rev-parse --verify main) &&
 250         child_head=$(cd child && git rev-parse --verify main) &&
 251         test "$parent_head" = "$child_head"
 252 '
 253
 254 test_expect_success 'deny pushing to delete current branch' '
 255         rewound_push_setup &&
 256         (
 257                 cd child &&
 258                 test_must_fail git send-pack ../parent :refs/heads/main 2>errs
 259         )
 260 '
 261
 262 extract_ref_advertisement () {
 263         perl -lne '
 264                 # \\ is there to skip capabilities after \0
 265                 /push< ([^\\]+)/ or next;
 266                 exit 0 if $1 eq "0000";
 267                 print $1;
 268         '
 269 }
 270
 271 test_expect_success 'receive-pack de-dupes .have lines' '
 272         git init shared &&
 273         git -C shared commit --allow-empty -m both &&
 274         git clone -s shared fork &&
 275         (
 276                 cd shared &&
 277                 git checkout -b only-shared &&
 278                 git commit --allow-empty -m only-shared &&
 279                 git update-ref refs/heads/foo HEAD
 280         ) &&
 281
 282         # Notable things in this expectation:
 283         #  - local refs are not de-duped
 284         #  - .have does not duplicate locals
 285         #  - .have does not duplicate itself
 286         local=$(git -C fork rev-parse HEAD) &&
 287         shared=$(git -C shared rev-parse only-shared) &&
 288         cat >expect <<-EOF &&
 289         $local refs/heads/main
 290         $local refs/remotes/origin/HEAD
 291         $local refs/remotes/origin/main
 292         $shared .have
 293         EOF
 294
 295         GIT_TRACE_PACKET=$(pwd)/trace GIT_TEST_PROTOCOL_VERSION=0 \
 296         git push \
 297                 --receive-pack="unset GIT_TRACE_PACKET; git-receive-pack" \
 298                 fork HEAD:foo &&
 299         extract_ref_advertisement <trace >refs &&
 300         test_cmp expect refs
 301 '
 302
 303 test_done