git/t/t5607-clone-bundle.sh
brian m. carlson c5aecfc866 bundle: add new version for use with SHA-256
Currently we detect the hash algorithm in use by the length of the
object ID.  This is inelegant and prevents us from using a different
hash algorithm that is also 256 bits in length.

Since we cannot extend the v2 format in a backward-compatible way, let's
add a v3 format, which is identical, except for the addition of
capabilities, which are prefixed by an at sign.  We add "object-format"
as the only capability and reject unknown capabilities, since we do not
have a network connection and therefore cannot negotiate with the other
side.

For compatibility, default to the v2 format for SHA-1 and require v3
for SHA-256.

In t5510, always use format v3 so we can be sure we produce consistent
results across hash algorithms.  Since head -n N lists the top N lines
instead of the Nth line, let's run our output through sed to normalize
it and compare it against a fixed value, which will make sure we get
exactly what we're expecting.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Reviewed-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-07-30 09:16:48 -07:00

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#!/bin/sh
test_description='some bundle related tests'
. ./test-lib.sh
test_expect_success 'setup' '
test_oid_cache <<-EOF &&
version sha1:2
version sha256:3
EOF
test_commit initial &&
test_tick &&
git tag -m tag tag &&
test_commit second &&
test_commit third &&
git tag -d initial &&
git tag -d second &&
git tag -d third
'
test_expect_success '"verify" needs a worktree' '
git bundle create tip.bundle -1 master &&
nongit test_must_fail git bundle verify ../tip.bundle 2>err &&
test_i18ngrep "need a repository" err
'
test_expect_success 'annotated tags can be excluded by rev-list options' '
git bundle create bundle --all --since=7.Apr.2005.15:14:00.-0700 &&
git ls-remote bundle > output &&
grep tag output &&
git bundle create bundle --all --since=7.Apr.2005.15:16:00.-0700 &&
git ls-remote bundle > output &&
! grep tag output
'
test_expect_success 'die if bundle file cannot be created' '
mkdir adir &&
test_must_fail git bundle create adir --all
'
test_expect_failure 'bundle --stdin' '
echo master | git bundle create stdin-bundle.bdl --stdin &&
git ls-remote stdin-bundle.bdl >output &&
grep master output
'
test_expect_failure 'bundle --stdin <rev-list options>' '
echo master | git bundle create hybrid-bundle.bdl --stdin tag &&
git ls-remote hybrid-bundle.bdl >output &&
grep master output
'
test_expect_success 'empty bundle file is rejected' '
: >empty-bundle &&
test_must_fail git fetch empty-bundle
'
# This triggers a bug in older versions where the resulting line (with
# --pretty=oneline) was longer than a 1024-char buffer.
test_expect_success 'ridiculously long subject in boundary' '
: >file4 &&
test_tick &&
git add file4 &&
printf "%01200d\n" 0 | git commit -F - &&
test_commit fifth &&
git bundle create long-subject-bundle.bdl HEAD^..HEAD &&
git bundle list-heads long-subject-bundle.bdl >heads &&
test -s heads &&
git fetch long-subject-bundle.bdl &&
sed -n "/^-/{p;q;}" long-subject-bundle.bdl >boundary &&
grep "^-$OID_REGEX " boundary
'
test_expect_success 'prerequisites with an empty commit message' '
: >file1 &&
git add file1 &&
test_tick &&
git commit --allow-empty-message -m "" &&
test_commit file2 &&
git bundle create bundle HEAD^.. &&
git bundle verify bundle
'
test_expect_success 'failed bundle creation does not leave cruft' '
# This fails because the bundle would be empty.
test_must_fail git bundle create fail.bundle master..master &&
test_path_is_missing fail.bundle.lock
'
test_expect_success 'fetch SHA-1 from bundle' '
test_create_repo foo &&
test_commit -C foo x &&
git -C foo bundle create tip.bundle -1 master &&
git -C foo rev-parse HEAD >hash &&
# Exercise to ensure that fetching a SHA-1 from a bundle works with no
# errors
git fetch --no-tags foo/tip.bundle "$(cat hash)"
'
test_expect_success 'git bundle uses expected default format' '
git bundle create bundle HEAD^.. &&
head -n1 bundle | grep "^# v$(test_oid version) git bundle$"
'
test_expect_success 'git bundle v3 has expected contents' '
git branch side HEAD &&
git bundle create --version=3 bundle HEAD^..side &&
head -n2 bundle >actual &&
cat >expect <<-EOF &&
# v3 git bundle
@object-format=$(test_oid algo)
EOF
test_cmp expect actual &&
git bundle verify bundle
'
test_expect_success 'git bundle v3 rejects unknown capabilities' '
cat >new <<-EOF &&
# v3 git bundle
@object-format=$(test_oid algo)
@unknown=silly
EOF
test_must_fail git bundle verify new 2>output &&
test_i18ngrep "unknown capability .unknown=silly." output
'
test_done