t/t0612-reftable-jgit-compatibility.sh

   1 #!/bin/sh
   2
   3 test_description='reftables are compatible with JGit'
   4
   5 GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
   6 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
   7 GIT_TEST_DEFAULT_REF_FORMAT=reftable
   8 export GIT_TEST_DEFAULT_REF_FORMAT
   9
  10 # JGit does not support the 'link' DIRC extension.
  11 GIT_TEST_SPLIT_INDEX=0
  12 export GIT_TEST_SPLIT_INDEX
  13
  14 TEST_PASSES_SANITIZE_LEAK=true
  15 . ./test-lib.sh
  16
  17 if ! test_have_prereq JGIT
  18 then
  19         skip_all='skipping reftable JGit tests; JGit is not present in PATH'
  20         test_done
  21 fi
  22
  23 if ! test_have_prereq SHA1
  24 then
  25         skip_all='skipping reftable JGit tests; JGit does not support SHA256 reftables'
  26         test_done
  27 fi
  28
  29 test_commit_jgit () {
  30         touch "$1" &&
  31         jgit add "$1" &&
  32         jgit commit -m "$1"
  33 }
  34
  35 test_same_refs () {
  36         git show-ref --head >cgit.actual &&
  37         jgit show-ref >jgit-tabs.actual &&
  38         tr "\t" " " <jgit-tabs.actual >jgit.actual &&
  39         test_cmp cgit.actual jgit.actual
  40 }
  41
  42 test_same_ref () {
  43         git rev-parse "$1" >cgit.actual &&
  44         jgit rev-parse "$1" >jgit.actual &&
  45         test_cmp cgit.actual jgit.actual
  46 }
  47
  48 test_same_reflog () {
  49         git reflog "$*" >cgit.actual &&
  50         jgit reflog "$*" >jgit-newline.actual &&
  51         sed '/^$/d' <jgit-newline.actual >jgit.actual &&
  52         test_cmp cgit.actual jgit.actual
  53 }
  54
  55 test_expect_success 'CGit repository can be read by JGit' '
  56         test_when_finished "rm -rf repo" &&
  57         git init repo &&
  58         (
  59                 cd repo &&
  60                 test_commit A &&
  61                 test_same_refs &&
  62                 test_same_ref HEAD &&
  63                 test_same_reflog HEAD
  64         )
  65 '
  66
  67 test_expect_success 'JGit repository can be read by CGit' '
  68         test_when_finished "rm -rf repo" &&
  69         jgit init repo &&
  70         (
  71                 cd repo &&
  72
  73                 touch file &&
  74                 jgit add file &&
  75                 jgit commit -m "initial commit" &&
  76
  77                 # Note that we must convert the ref storage after we have
  78                 # written the default branch. Otherwise JGit will end up with
  79                 # no HEAD at all.
  80                 jgit convert-ref-storage --format=reftable &&
  81
  82                 test_same_refs &&
  83                 test_same_ref HEAD &&
  84                 # Interestingly, JGit cannot read its own reflog here. CGit can
  85                 # though.
  86                 printf "%s HEAD@{0}: commit (initial): initial commit" "$(git rev-parse --short HEAD)" >expect &&
  87                 git reflog HEAD >actual &&
  88                 test_cmp expect actual
  89         )
  90 '
  91
  92 test_expect_success 'mixed writes from JGit and CGit' '
  93         test_when_finished "rm -rf repo" &&
  94         git init repo &&
  95         (
  96                 cd repo &&
  97
  98                 test_commit A &&
  99                 test_commit_jgit B &&
 100                 test_commit C &&
 101                 test_commit_jgit D &&
 102
 103                 test_same_refs &&
 104                 test_same_ref HEAD &&
 105                 test_same_reflog HEAD
 106         )
 107 '
 108
 109 test_expect_success 'JGit can read multi-level index' '
 110         test_when_finished "rm -rf repo" &&
 111         git init repo &&
 112         (
 113                 cd repo &&
 114
 115                 test_commit A &&
 116                 awk "
 117                     BEGIN {
 118                         print \"start\";
 119                         for (i = 0; i < 10000; i++)
 120                             printf \"create refs/heads/branch-%d HEAD\n\", i;
 121                         print \"commit\";
 122                     }
 123                 " >input &&
 124                 git update-ref --stdin <input &&
 125
 126                 test_same_refs &&
 127                 test_same_ref refs/heads/branch-1 &&
 128                 test_same_ref refs/heads/branch-5738 &&
 129                 test_same_ref refs/heads/branch-9999
 130         )
 131 '
 132
 133 test_done