t/t7510-signed-commit.sh

   1 #!/bin/sh
   2
   3 test_description='signed commit tests'
   4 . ./test-lib.sh
   5 . "$TEST_DIRECTORY/lib-gpg.sh"
   6
   7 test_expect_success GPG 'create signed commits' '
   8         test_when_finished "test_unconfig commit.gpgsign" &&
   9
  10         echo 1 >file && git add file &&
  11         test_tick && git commit -S -m initial &&
  12         git tag initial &&
  13         git branch side &&
  14
  15         echo 2 >file && test_tick && git commit -a -S -m second &&
  16         git tag second &&
  17
  18         git checkout side &&
  19         echo 3 >elif && git add elif &&
  20         test_tick && git commit -m "third on side" &&
  21
  22         git checkout master &&
  23         test_tick && git merge -S side &&
  24         git tag merge &&
  25
  26         echo 4 >file && test_tick && git commit -a -m "fourth unsigned" &&
  27         git tag fourth-unsigned &&
  28
  29         test_tick && git commit --amend -S -m "fourth signed" &&
  30         git tag fourth-signed &&
  31
  32         git config commit.gpgsign true &&
  33         echo 5 >file && test_tick && git commit -a -m "fifth signed" &&
  34         git tag fifth-signed &&
  35
  36         git config commit.gpgsign false &&
  37         echo 6 >file && test_tick && git commit -a -m "sixth" &&
  38         git tag sixth-unsigned &&
  39
  40         git config commit.gpgsign true &&
  41         echo 7 >file && test_tick && git commit -a -m "seventh" --no-gpg-sign &&
  42         git tag seventh-unsigned &&
  43
  44         test_tick && git rebase -f HEAD^^ && git tag sixth-signed HEAD^ &&
  45         git tag seventh-signed
  46
  47         echo 8 >file && test_tick && git commit -a -m eighth -SB7227189 &&
  48         git tag eighth-signed-alt
  49 '
  50
  51 test_expect_success GPG 'verify and show signatures' '
  52         (
  53                 for commit in initial second merge fourth-signed fifth-signed sixth-signed seventh-signed
  54                 do
  55                         git verify-commit $commit &&
  56                         git show --pretty=short --show-signature $commit >actual &&
  57                         grep "Good signature from" actual &&
  58                         ! grep "BAD signature from" actual &&
  59                         echo $commit OK || exit 1
  60                 done
  61         ) &&
  62         (
  63                 for commit in merge^2 fourth-unsigned sixth-unsigned seventh-unsigned
  64                 do
  65                         test_must_fail git verify-commit $commit &&
  66                         git show --pretty=short --show-signature $commit >actual &&
  67                         ! grep "Good signature from" actual &&
  68                         ! grep "BAD signature from" actual &&
  69                         echo $commit OK || exit 1
  70                 done
  71         ) &&
  72         (
  73                 for commit in eighth-signed-alt
  74                 do
  75                         git show --pretty=short --show-signature $commit >actual &&
  76                         grep "Good signature from" actual &&
  77                         ! grep "BAD signature from" actual &&
  78                         grep "not certified" actual &&
  79                         echo $commit OK || exit 1
  80                 done
  81         )
  82 '
  83
  84 test_expect_success GPG 'show signed commit with signature' '
  85         git show -s initial >commit &&
  86         git show -s --show-signature initial >show &&
  87         git verify-commit -v initial >verify.1 2>verify.2 &&
  88         git cat-file commit initial >cat &&
  89         grep -v "gpg: " show >show.commit &&
  90         grep "gpg: " show >show.gpg &&
  91         grep -v "^ " cat | grep -v "^gpgsig " >cat.commit &&
  92         test_cmp show.commit commit &&
  93         test_cmp show.gpg verify.2 &&
  94         test_cmp cat.commit verify.1
  95 '
  96
  97 test_expect_success GPG 'detect fudged signature' '
  98         git cat-file commit seventh-signed >raw &&
  99
 100         sed -e "s/seventh/7th forged/" raw >forged1 &&
 101         git hash-object -w -t commit forged1 >forged1.commit &&
 102         ! git verify-commit $(cat forged1.commit) &&
 103         git show --pretty=short --show-signature $(cat forged1.commit) >actual1 &&
 104         grep "BAD signature from" actual1 &&
 105         ! grep "Good signature from" actual1
 106 '
 107
 108 test_expect_success GPG 'detect fudged signature with NUL' '
 109         git cat-file commit seventh-signed >raw &&
 110         cat raw >forged2 &&
 111         echo Qwik | tr "Q" "\000" >>forged2 &&
 112         git hash-object -w -t commit forged2 >forged2.commit &&
 113         ! git verify-commit $(cat forged2.commit) &&
 114         git show --pretty=short --show-signature $(cat forged2.commit) >actual2 &&
 115         grep "BAD signature from" actual2 &&
 116         ! grep "Good signature from" actual2
 117 '
 118
 119 test_expect_success GPG 'amending already signed commit' '
 120         git checkout fourth-signed^0 &&
 121         git commit --amend -S --no-edit &&
 122         git verify-commit HEAD &&
 123         git show -s --show-signature HEAD >actual &&
 124         grep "Good signature from" actual &&
 125         ! grep "BAD signature from" actual
 126 '
 127
 128 test_expect_success GPG 'show good signature with custom format' '
 129         cat >expect <<-\EOF &&
 130         G
 131         13B6F51ECDDE430D
 132         C O Mitter <committer@example.com>
 133         EOF
 134         git log -1 --format="%G?%n%GK%n%GS" sixth-signed >actual &&
 135         test_cmp expect actual
 136 '
 137
 138 test_expect_success GPG 'show bad signature with custom format' '
 139         cat >expect <<-\EOF &&
 140         B
 141         13B6F51ECDDE430D
 142         C O Mitter <committer@example.com>
 143         EOF
 144         git log -1 --format="%G?%n%GK%n%GS" $(cat forged1.commit) >actual &&
 145         test_cmp expect actual
 146 '
 147
 148 test_expect_success GPG 'show unknown signature with custom format' '
 149         cat >expect <<-\EOF &&
 150         U
 151         61092E85B7227189
 152         Eris Discordia <discord@example.net>
 153         EOF
 154         git log -1 --format="%G?%n%GK%n%GS" eighth-signed-alt >actual &&
 155         test_cmp expect actual
 156 '
 157
 158 test_expect_success GPG 'show lack of signature with custom format' '
 159         cat >expect <<-\EOF &&
 160         N
 161
 162
 163         EOF
 164         git log -1 --format="%G?%n%GK%n%GS" seventh-unsigned >actual &&
 165         test_cmp expect actual
 166 '
 167
 168 test_done