git-commit-vandalism/t/t8010-cat-file-filters.sh
Ævar Arnfjörð Bjarmason 27472b5195 cat-file: fix a common "struct object_context" memory leak
Fix a memory leak where "cat-file" will leak the "path" member. See
e5fba602e5 (textconv: support for cat_file, 2010-06-15) for the code
that introduced the offending get_oid_with_context() call (called
get_sha1_with_context() at the time).

As a result we can mark several tests as passing with SANITIZE=leak
using "TEST_PASSES_SANITIZE_LEAK=true".

As noted in dc944b65f1 (get_sha1_with_context: dynamically allocate
oc->path, 2017-05-19) callers must free the "path" member. That same
commit added the relevant free() to this function, but we weren't
catching cases where we'd return early.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-07-01 11:43:43 -07:00

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#!/bin/sh
test_description='git cat-file filters support'
TEST_PASSES_SANITIZE_LEAK=true
. ./test-lib.sh
test_expect_success 'setup ' '
echo "*.txt eol=crlf diff=txt" >.gitattributes &&
echo "hello" | append_cr >world.txt &&
git add .gitattributes world.txt &&
test_tick &&
git commit -m "Initial commit"
'
has_cr () {
tr '\015' Q <"$1" | grep Q >/dev/null
}
test_expect_success 'no filters with `git show`' '
git show HEAD:world.txt >actual &&
! has_cr actual
'
test_expect_success 'no filters with cat-file' '
git cat-file blob HEAD:world.txt >actual &&
! has_cr actual
'
test_expect_success 'cat-file --filters converts to worktree version' '
git cat-file --filters HEAD:world.txt >actual &&
has_cr actual
'
test_expect_success 'cat-file --filters --path=<path> works' '
sha1=$(git rev-parse -q --verify HEAD:world.txt) &&
git cat-file --filters --path=world.txt $sha1 >actual &&
has_cr actual
'
test_expect_success 'cat-file --textconv --path=<path> works' '
sha1=$(git rev-parse -q --verify HEAD:world.txt) &&
test_config diff.txt.textconv "tr A-Za-z N-ZA-Mn-za-m <" &&
git cat-file --textconv --path=hello.txt $sha1 >rot13 &&
test uryyb = "$(cat rot13 | remove_cr)"
'
test_expect_success '--path=<path> complains without --textconv/--filters' '
sha1=$(git rev-parse -q --verify HEAD:world.txt) &&
test_must_fail git cat-file --path=hello.txt blob $sha1 >actual 2>err &&
test_must_be_empty actual &&
grep "path.*needs.*filters" err
'
test_expect_success '--textconv/--filters complain without path' '
test_must_fail git cat-file --textconv HEAD &&
test_must_fail git cat-file --filters HEAD
'
test_expect_success 'cat-file --textconv --batch works' '
sha1=$(git rev-parse -q --verify HEAD:world.txt) &&
test_config diff.txt.textconv "tr A-Za-z N-ZA-Mn-za-m <" &&
printf "%s hello.txt\n%s hello\n" $sha1 $sha1 |
git cat-file --textconv --batch >actual &&
printf "%s blob 6\nuryyb\r\n\n%s blob 6\nhello\n\n" \
$sha1 $sha1 >expect &&
test_cmp expect actual
'
test_done