t/t1016-compatObjectFormat.sh

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2023 Eric Biederman
   4 #
   5
   6 test_description='Test how well compatObjectFormat works'
   7
   8 TEST_PASSES_SANITIZE_LEAK=true
   9 . ./test-lib.sh
  10 . "$TEST_DIRECTORY"/lib-gpg.sh
  11
  12 # All of the follow variables must be defined in the environment:
  13 # GIT_AUTHOR_NAME
  14 # GIT_AUTHOR_EMAIL
  15 # GIT_AUTHOR_DATE
  16 # GIT_COMMITTER_NAME
  17 # GIT_COMMITTER_EMAIL
  18 # GIT_COMMITTER_DATE
  19 #
  20 # The test relies on these variables being set so that the two
  21 # different commits in two different repositories encoded with two
  22 # different hash functions result in the same content in the commits.
  23 # This means that when the commit is translated between hash functions
  24 # the commit is identical to the commit in the other repository.
  25
  26 compat_hash () {
  27     case "$1" in
  28     "sha1")
  29         echo "sha256"
  30         ;;
  31     "sha256")
  32         echo "sha1"
  33         ;;
  34     esac
  35 }
  36
  37 hello_oid () {
  38     case "$1" in
  39     "sha1")
  40         echo "$hello_sha1_oid"
  41         ;;
  42     "sha256")
  43         echo "$hello_sha256_oid"
  44         ;;
  45     esac
  46 }
  47
  48 tree_oid () {
  49     case "$1" in
  50     "sha1")
  51         echo "$tree_sha1_oid"
  52         ;;
  53     "sha256")
  54         echo "$tree_sha256_oid"
  55         ;;
  56     esac
  57 }
  58
  59 commit_oid () {
  60     case "$1" in
  61     "sha1")
  62         echo "$commit_sha1_oid"
  63         ;;
  64     "sha256")
  65         echo "$commit_sha256_oid"
  66         ;;
  67     esac
  68 }
  69
  70 commit2_oid () {
  71     case "$1" in
  72     "sha1")
  73         echo "$commit2_sha1_oid"
  74         ;;
  75     "sha256")
  76         echo "$commit2_sha256_oid"
  77         ;;
  78     esac
  79 }
  80
  81 del_sigcommit () {
  82     local delete="$1"
  83
  84     if test "$delete" = "sha256" ; then
  85         local pattern="gpgsig-sha256"
  86     else
  87         local pattern="gpgsig"
  88     fi
  89     test-tool delete-gpgsig "$pattern"
  90 }
  91
  92
  93 del_sigtag () {
  94     local storage="$1"
  95     local delete="$2"
  96
  97     if test "$storage" = "$delete" ; then
  98         local pattern="trailer"
  99     elif test "$storage" = "sha256" ; then
 100         local pattern="gpgsig"
 101     else
 102         local pattern="gpgsig-sha256"
 103     fi
 104     test-tool delete-gpgsig "$pattern"
 105 }
 106
 107 base=$(pwd)
 108 for hash in sha1 sha256
 109 do
 110         cd "$base"
 111         mkdir -p repo-$hash
 112         cd repo-$hash
 113
 114         test_expect_success "setup $hash repository" '
 115                 git init --object-format=$hash &&
 116                 git config core.repositoryformatversion 1 &&
 117                 git config extensions.objectformat $hash &&
 118                 git config extensions.compatobjectformat $(compat_hash $hash) &&
 119                 git config gpg.program $TEST_DIRECTORY/t1016/gpg &&
 120                 echo "Hellow World!" > hello &&
 121                 eval hello_${hash}_oid=$(git hash-object hello) &&
 122                 git update-index --add hello &&
 123                 git commit -m "Initial commit" &&
 124                 eval commit_${hash}_oid=$(git rev-parse HEAD) &&
 125                 eval tree_${hash}_oid=$(git rev-parse HEAD^{tree})
 126         '
 127         test_expect_success "create a $hash  tagged blob" '
 128                 git tag --no-sign -m "This is a tag" hellotag $(hello_oid $hash) &&
 129                 eval hellotag_${hash}_oid=$(git rev-parse hellotag)
 130         '
 131         test_expect_success "create a $hash tagged tree" '
 132                 git tag --no-sign -m "This is a tag" treetag $(tree_oid $hash) &&
 133                 eval treetag_${hash}_oid=$(git rev-parse treetag)
 134         '
 135         test_expect_success "create a $hash tagged commit" '
 136                 git tag --no-sign -m "This is a tag" committag $(commit_oid $hash) &&
 137                 eval committag_${hash}_oid=$(git rev-parse committag)
 138         '
 139         test_expect_success GPG2 "create a $hash signed commit" '
 140                 git commit --gpg-sign --allow-empty -m "This is a signed commit" &&
 141                 eval signedcommit_${hash}_oid=$(git rev-parse HEAD)
 142         '
 143         test_expect_success GPG2 "create a $hash signed tag" '
 144                 git tag -s -m "This is a signed tag" signedtag HEAD &&
 145                 eval signedtag_${hash}_oid=$(git rev-parse signedtag)
 146         '
 147         test_expect_success "create a $hash branch" '
 148                 git checkout -b branch $(commit_oid $hash) &&
 149                 echo "More more more give me more!" > more &&
 150                 eval more_${hash}_oid=$(git hash-object more) &&
 151                 echo "Another and another and another" > another &&
 152                 eval another_${hash}_oid=$(git hash-object another) &&
 153                 git update-index --add more another &&
 154                 git commit -m "Add more files!" &&
 155                 eval commit2_${hash}_oid=$(git rev-parse HEAD) &&
 156                 eval tree2_${hash}_oid=$(git rev-parse HEAD^{tree})
 157         '
 158         test_expect_success GPG2 "create another $hash signed tag" '
 159                 git tag -s -m "This is another signed tag" signedtag2 $(commit2_oid $hash) &&
 160                 eval signedtag2_${hash}_oid=$(git rev-parse signedtag2)
 161         '
 162         test_expect_success GPG2 "merge the $hash branches together" '
 163                 git merge -S -m "merge some signed tags together" signedtag signedtag2 &&
 164                 eval signedcommit2_${hash}_oid=$(git rev-parse HEAD)
 165         '
 166         test_expect_success GPG2 "create additional $hash signed commits" '
 167                 git commit --gpg-sign --allow-empty -m "This is an additional signed commit" &&
 168                 git cat-file commit HEAD | del_sigcommit sha256 > "../${hash}_signedcommit3" &&
 169                 git cat-file commit HEAD | del_sigcommit sha1 > "../${hash}_signedcommit4" &&
 170                 eval signedcommit3_${hash}_oid=$(git hash-object -t commit -w ../${hash}_signedcommit3) &&
 171                 eval signedcommit4_${hash}_oid=$(git hash-object -t commit -w ../${hash}_signedcommit4)
 172         '
 173         test_expect_success GPG2 "create additional $hash signed tags" '
 174                 git tag -s -m "This is an additional signed tag" signedtag34 HEAD &&
 175                 git cat-file tag signedtag34 | del_sigtag "${hash}" sha256 > ../${hash}_signedtag3 &&
 176                 git cat-file tag signedtag34 | del_sigtag "${hash}" sha1 > ../${hash}_signedtag4 &&
 177                 eval signedtag3_${hash}_oid=$(git hash-object -t tag -w ../${hash}_signedtag3) &&
 178                 eval signedtag4_${hash}_oid=$(git hash-object -t tag -w ../${hash}_signedtag4)
 179         '
 180 done
 181 cd "$base"
 182
 183 compare_oids () {
 184     test "$#" = 5 && { local PREREQ="$1"; shift; } || PREREQ=
 185     local type="$1"
 186     local name="$2"
 187     local sha1_oid="$3"
 188     local sha256_oid="$4"
 189
 190     echo ${sha1_oid} > ${name}_sha1_expected
 191     echo ${sha256_oid} > ${name}_sha256_expected
 192     echo ${type} > ${name}_type_expected
 193
 194     git --git-dir=repo-sha1/.git rev-parse --output-object-format=sha256 ${sha1_oid} > ${name}_sha1_sha256_found
 195     git --git-dir=repo-sha256/.git rev-parse --output-object-format=sha1 ${sha256_oid} > ${name}_sha256_sha1_found
 196     local sha1_sha256_oid="$(cat ${name}_sha1_sha256_found)"
 197     local sha256_sha1_oid="$(cat ${name}_sha256_sha1_found)"
 198
 199     test_expect_success $PREREQ "Verify ${type} ${name}'s sha1 oid" '
 200         git --git-dir=repo-sha256/.git rev-parse --output-object-format=sha1 ${sha256_oid} > ${name}_sha1 &&
 201         test_cmp ${name}_sha1 ${name}_sha1_expected
 202 '
 203
 204     test_expect_success $PREREQ "Verify ${type} ${name}'s sha256 oid" '
 205         git --git-dir=repo-sha1/.git rev-parse --output-object-format=sha256 ${sha1_oid} > ${name}_sha256 &&
 206         test_cmp ${name}_sha256 ${name}_sha256_expected
 207 '
 208
 209     test_expect_success $PREREQ "Verify ${name}'s sha1 type" '
 210         git --git-dir=repo-sha1/.git cat-file -t ${sha1_oid} > ${name}_type1 &&
 211         git --git-dir=repo-sha256/.git cat-file -t ${sha256_sha1_oid} > ${name}_type2 &&
 212         test_cmp ${name}_type1 ${name}_type2 &&
 213         test_cmp ${name}_type1 ${name}_type_expected
 214 '
 215
 216     test_expect_success $PREREQ "Verify ${name}'s sha256 type" '
 217         git --git-dir=repo-sha256/.git cat-file -t ${sha256_oid} > ${name}_type3 &&
 218         git --git-dir=repo-sha1/.git cat-file -t ${sha1_sha256_oid} > ${name}_type4 &&
 219         test_cmp ${name}_type3 ${name}_type4 &&
 220         test_cmp ${name}_type3 ${name}_type_expected
 221 '
 222
 223     test_expect_success $PREREQ "Verify ${name}'s sha1 size" '
 224         git --git-dir=repo-sha1/.git cat-file -s ${sha1_oid} > ${name}_size1 &&
 225         git --git-dir=repo-sha256/.git cat-file -s ${sha256_sha1_oid} > ${name}_size2 &&
 226         test_cmp ${name}_size1 ${name}_size2
 227 '
 228
 229     test_expect_success $PREREQ "Verify ${name}'s sha256 size" '
 230         git --git-dir=repo-sha256/.git cat-file -s ${sha256_oid} > ${name}_size3 &&
 231         git --git-dir=repo-sha1/.git cat-file -s ${sha1_sha256_oid} > ${name}_size4 &&
 232         test_cmp ${name}_size3 ${name}_size4
 233 '
 234
 235     test_expect_success $PREREQ "Verify ${name}'s sha1 pretty content" '
 236         git --git-dir=repo-sha1/.git cat-file -p ${sha1_oid} > ${name}_content1 &&
 237         git --git-dir=repo-sha256/.git cat-file -p ${sha256_sha1_oid} > ${name}_content2 &&
 238         test_cmp ${name}_content1 ${name}_content2
 239 '
 240
 241     test_expect_success $PREREQ "Verify ${name}'s sha256 pretty content" '
 242         git --git-dir=repo-sha256/.git cat-file -p ${sha256_oid} > ${name}_content3 &&
 243         git --git-dir=repo-sha1/.git cat-file -p ${sha1_sha256_oid} > ${name}_content4 &&
 244         test_cmp ${name}_content3 ${name}_content4
 245 '
 246
 247     test_expect_success $PREREQ "Verify ${name}'s sha1 content" '
 248         git --git-dir=repo-sha1/.git cat-file ${type} ${sha1_oid} > ${name}_content5 &&
 249         git --git-dir=repo-sha256/.git cat-file ${type} ${sha256_sha1_oid} > ${name}_content6 &&
 250         test_cmp ${name}_content5 ${name}_content6
 251 '
 252
 253     test_expect_success $PREREQ "Verify ${name}'s sha256 content" '
 254         git --git-dir=repo-sha256/.git cat-file ${type} ${sha256_oid} > ${name}_content7 &&
 255         git --git-dir=repo-sha1/.git cat-file ${type} ${sha1_sha256_oid} > ${name}_content8 &&
 256         test_cmp ${name}_content7 ${name}_content8
 257 '
 258
 259 }
 260
 261 compare_oids 'blob' hello "$hello_sha1_oid" "$hello_sha256_oid"
 262 compare_oids 'tree' tree "$tree_sha1_oid" "$tree_sha256_oid"
 263 compare_oids 'commit' commit "$commit_sha1_oid" "$commit_sha256_oid"
 264 compare_oids GPG2 'commit' signedcommit "$signedcommit_sha1_oid" "$signedcommit_sha256_oid"
 265 compare_oids 'tag' hellotag "$hellotag_sha1_oid" "$hellotag_sha256_oid"
 266 compare_oids 'tag' treetag "$treetag_sha1_oid" "$treetag_sha256_oid"
 267 compare_oids 'tag' committag "$committag_sha1_oid" "$committag_sha256_oid"
 268 compare_oids GPG2 'tag' signedtag "$signedtag_sha1_oid" "$signedtag_sha256_oid"
 269
 270 compare_oids 'blob' more "$more_sha1_oid" "$more_sha256_oid"
 271 compare_oids 'blob' another "$another_sha1_oid" "$another_sha256_oid"
 272 compare_oids 'tree' tree2 "$tree2_sha1_oid" "$tree2_sha256_oid"
 273 compare_oids 'commit' commit2 "$commit2_sha1_oid" "$commit2_sha256_oid"
 274 compare_oids GPG2 'tag' signedtag2 "$signedtag2_sha1_oid" "$signedtag2_sha256_oid"
 275 compare_oids GPG2 'commit' signedcommit2 "$signedcommit2_sha1_oid" "$signedcommit2_sha256_oid"
 276 compare_oids GPG2 'commit' signedcommit3 "$signedcommit3_sha1_oid" "$signedcommit3_sha256_oid"
 277 compare_oids GPG2 'commit' signedcommit4 "$signedcommit4_sha1_oid" "$signedcommit4_sha256_oid"
 278 compare_oids GPG2 'tag' signedtag3 "$signedtag3_sha1_oid" "$signedtag3_sha256_oid"
 279 compare_oids GPG2 'tag' signedtag4 "$signedtag4_sha1_oid" "$signedtag4_sha256_oid"
 280
 281 test_done