git/t/t7510-signed-commit.sh
Junio C Hamano 50b26f5612 Merge branch 'jc/commit-tree-ignore-commit-gpgsign'
"git commit-tree" plumbing command required the user to always sign
its result when the user sets the commit.gpgsign configuration
variable, which was an ancient mistake.  Rework "git rebase" that
relied on this mistake so that it reads commit.gpgsign and pass (or
not pass) the -S option to "git commit-tree" to keep the end-user
expectation the same, while teaching "git commit-tree" to ignore
the configuration variable.  This will stop requiring the users to
sign commit objects used internally as an implementation detail of
"git stash".

* jc/commit-tree-ignore-commit-gpgsign:
  commit-tree: do not pay attention to commit.gpgsign
2016-05-13 13:18:27 -07:00

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#!/bin/sh
test_description='signed commit tests'
. ./test-lib.sh
. "$TEST_DIRECTORY/lib-gpg.sh"
test_expect_success GPG 'create signed commits' '
test_when_finished "test_unconfig commit.gpgsign" &&
echo 1 >file && git add file &&
test_tick && git commit -S -m initial &&
git tag initial &&
git branch side &&
echo 2 >file && test_tick && git commit -a -S -m second &&
git tag second &&
git checkout side &&
echo 3 >elif && git add elif &&
test_tick && git commit -m "third on side" &&
git checkout master &&
test_tick && git merge -S side &&
git tag merge &&
echo 4 >file && test_tick && git commit -a -m "fourth unsigned" &&
git tag fourth-unsigned &&
test_tick && git commit --amend -S -m "fourth signed" &&
git tag fourth-signed &&
git config commit.gpgsign true &&
echo 5 >file && test_tick && git commit -a -m "fifth signed" &&
git tag fifth-signed &&
git config commit.gpgsign false &&
echo 6 >file && test_tick && git commit -a -m "sixth" &&
git tag sixth-unsigned &&
git config commit.gpgsign true &&
echo 7 >file && test_tick && git commit -a -m "seventh" --no-gpg-sign &&
git tag seventh-unsigned &&
test_tick && git rebase -f HEAD^^ && git tag sixth-signed HEAD^ &&
git tag seventh-signed &&
echo 8 >file && test_tick && git commit -a -m eighth -SB7227189 &&
git tag eighth-signed-alt &&
# commit.gpgsign is still on but this must not be signed
git tag ninth-unsigned $(echo 9 | git commit-tree HEAD^{tree}) &&
# explicit -S of course must sign.
git tag tenth-signed $(echo 9 | git commit-tree -S HEAD^{tree})
'
test_expect_success GPG 'verify and show signatures' '
(
for commit in initial second merge fourth-signed \
fifth-signed sixth-signed seventh-signed tenth-signed
do
git verify-commit $commit &&
git show --pretty=short --show-signature $commit >actual &&
grep "Good signature from" actual &&
! grep "BAD signature from" actual &&
echo $commit OK || exit 1
done
) &&
(
for commit in merge^2 fourth-unsigned sixth-unsigned \
seventh-unsigned ninth-unsigned
do
test_must_fail git verify-commit $commit &&
git show --pretty=short --show-signature $commit >actual &&
! grep "Good signature from" actual &&
! grep "BAD signature from" actual &&
echo $commit OK || exit 1
done
) &&
(
for commit in eighth-signed-alt
do
git show --pretty=short --show-signature $commit >actual &&
grep "Good signature from" actual &&
! grep "BAD signature from" actual &&
grep "not certified" actual &&
echo $commit OK || exit 1
done
)
'
test_expect_success GPG 'verify-commit exits success on untrusted signature' '
git verify-commit eighth-signed-alt 2>actual &&
grep "Good signature from" actual &&
! grep "BAD signature from" actual &&
grep "not certified" actual
'
test_expect_success GPG 'verify signatures with --raw' '
(
for commit in initial second merge fourth-signed fifth-signed sixth-signed seventh-signed
do
git verify-commit --raw $commit 2>actual &&
grep "GOODSIG" actual &&
! grep "BADSIG" actual &&
echo $commit OK || exit 1
done
) &&
(
for commit in merge^2 fourth-unsigned sixth-unsigned seventh-unsigned
do
test_must_fail git verify-commit --raw $commit 2>actual &&
! grep "GOODSIG" actual &&
! grep "BADSIG" actual &&
echo $commit OK || exit 1
done
) &&
(
for commit in eighth-signed-alt
do
git verify-commit --raw $commit 2>actual &&
grep "GOODSIG" actual &&
! grep "BADSIG" actual &&
grep "TRUST_UNDEFINED" actual &&
echo $commit OK || exit 1
done
)
'
test_expect_success GPG 'show signed commit with signature' '
git show -s initial >commit &&
git show -s --show-signature initial >show &&
git verify-commit -v initial >verify.1 2>verify.2 &&
git cat-file commit initial >cat &&
grep -v -e "gpg: " -e "Warning: " show >show.commit &&
grep -e "gpg: " -e "Warning: " show >show.gpg &&
grep -v "^ " cat | grep -v "^gpgsig " >cat.commit &&
test_cmp show.commit commit &&
test_cmp show.gpg verify.2 &&
test_cmp cat.commit verify.1
'
test_expect_success GPG 'detect fudged signature' '
git cat-file commit seventh-signed >raw &&
sed -e "s/seventh/7th forged/" raw >forged1 &&
git hash-object -w -t commit forged1 >forged1.commit &&
! git verify-commit $(cat forged1.commit) &&
git show --pretty=short --show-signature $(cat forged1.commit) >actual1 &&
grep "BAD signature from" actual1 &&
! grep "Good signature from" actual1
'
test_expect_success GPG 'detect fudged signature with NUL' '
git cat-file commit seventh-signed >raw &&
cat raw >forged2 &&
echo Qwik | tr "Q" "\000" >>forged2 &&
git hash-object -w -t commit forged2 >forged2.commit &&
! git verify-commit $(cat forged2.commit) &&
git show --pretty=short --show-signature $(cat forged2.commit) >actual2 &&
grep "BAD signature from" actual2 &&
! grep "Good signature from" actual2
'
test_expect_success GPG 'amending already signed commit' '
git checkout fourth-signed^0 &&
git commit --amend -S --no-edit &&
git verify-commit HEAD &&
git show -s --show-signature HEAD >actual &&
grep "Good signature from" actual &&
! grep "BAD signature from" actual
'
test_expect_success GPG 'show good signature with custom format' '
cat >expect <<-\EOF &&
G
13B6F51ECDDE430D
C O Mitter <committer@example.com>
EOF
git log -1 --format="%G?%n%GK%n%GS" sixth-signed >actual &&
test_cmp expect actual
'
test_expect_success GPG 'show bad signature with custom format' '
cat >expect <<-\EOF &&
B
13B6F51ECDDE430D
C O Mitter <committer@example.com>
EOF
git log -1 --format="%G?%n%GK%n%GS" $(cat forged1.commit) >actual &&
test_cmp expect actual
'
test_expect_success GPG 'show unknown signature with custom format' '
cat >expect <<-\EOF &&
U
61092E85B7227189
Eris Discordia <discord@example.net>
EOF
git log -1 --format="%G?%n%GK%n%GS" eighth-signed-alt >actual &&
test_cmp expect actual
'
test_expect_success GPG 'show lack of signature with custom format' '
cat >expect <<-\EOF &&
N
EOF
git log -1 --format="%G?%n%GK%n%GS" seventh-unsigned >actual &&
test_cmp expect actual
'
test_done