git/t/t2107-update-index-basic.sh
Patrick Steinhardt d1c53f6703 read-cache: fix leaking hashfile when writing index fails
In `do_write_index()`, we use a `struct hashfile` to write the index
with a trailer hash. In case the write fails though, we never clean up
the allocated `hashfile` state and thus leak memory.

Refactor the code to have a common exit path where we can free this and
other allocated memory. While at it, refactor our use of `strbuf`s such
that we reuse the same buffer to avoid some unneeded allocations.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-08-14 10:07:58 -07:00

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#!/bin/sh
test_description='basic update-index tests
Tests for command-line parsing and basic operation.
'
TEST_PASSES_SANITIZE_LEAK=true
. ./test-lib.sh
test_expect_success 'update-index --nonsense fails' '
test_must_fail git update-index --nonsense 2>msg &&
test -s msg
'
test_expect_success 'update-index --nonsense dumps usage' '
test_expect_code 129 git update-index --nonsense 2>err &&
test_grep "[Uu]sage: git update-index" err
'
test_expect_success 'update-index -h with corrupt index' '
mkdir broken &&
(
cd broken &&
git init &&
>.git/index &&
test_expect_code 129 git update-index -h >usage 2>&1
) &&
test_grep "[Uu]sage: git update-index" broken/usage
'
test_expect_success '--cacheinfo complains of missing arguments' '
test_must_fail git update-index --cacheinfo
'
test_expect_success '--cacheinfo does not accept blob null sha1' '
echo content >file &&
git add file &&
git rev-parse :file >expect &&
test_must_fail git update-index --verbose --cacheinfo 100644 $ZERO_OID file >out &&
git rev-parse :file >actual &&
test_cmp expect actual &&
cat >expect <<-\EOF &&
add '\''file'\''
EOF
test_cmp expect out
'
test_expect_success '--cacheinfo does not accept gitlink null sha1' '
git init submodule &&
(cd submodule && test_commit foo) &&
git add submodule &&
git rev-parse :submodule >expect &&
test_must_fail git update-index --cacheinfo 160000 $ZERO_OID submodule &&
git rev-parse :submodule >actual &&
test_cmp expect actual
'
test_expect_success '--cacheinfo mode,sha1,path (new syntax)' '
echo content >file &&
git hash-object -w --stdin <file >expect &&
git update-index --add --cacheinfo 100644 "$(cat expect)" file &&
git rev-parse :file >actual &&
test_cmp expect actual &&
git update-index --add --verbose --cacheinfo "100644,$(cat expect),elif" >out &&
git rev-parse :elif >actual &&
test_cmp expect actual &&
cat >expect <<-\EOF &&
add '\''elif'\''
EOF
test_cmp expect out
'
test_expect_success '.lock files cleaned up' '
mkdir cleanup &&
(
cd cleanup &&
mkdir worktree &&
git init repo &&
cd repo &&
git config core.worktree ../../worktree &&
# --refresh triggers late setup_work_tree,
# the_index.cache_changed is zero, rollback_lock_file fails
git update-index --refresh --verbose >out &&
test_must_be_empty out &&
! test -f .git/index.lock
)
'
test_expect_success '--chmod=+x and chmod=-x in the same argument list' '
>A &&
>B &&
git add A B &&
git update-index --verbose --chmod=+x A --chmod=-x B >out &&
cat >expect <<-\EOF &&
add '\''A'\''
chmod +x '\''A'\''
add '\''B'\''
chmod -x '\''B'\''
EOF
test_cmp expect out &&
cat >expect <<-EOF &&
100755 $EMPTY_BLOB 0 A
100644 $EMPTY_BLOB 0 B
EOF
git ls-files --stage A B >actual &&
test_cmp expect actual
'
test_expect_success '--index-version' '
git commit --allow-empty -m snap &&
git reset --hard &&
git rm -f -r --cached . &&
# The default index version is 2 --- update this test
# when you change it in the code
git update-index --show-index-version >actual &&
echo 2 >expect &&
test_cmp expect actual &&
# The next test wants us to be using version 2
git update-index --index-version 2 &&
git update-index --index-version 4 --verbose >actual &&
echo "index-version: was 2, set to 4" >expect &&
test_cmp expect actual &&
git update-index --index-version 4 --verbose >actual &&
echo "index-version: was 4, set to 4" >expect &&
test_cmp expect actual &&
git update-index --index-version 2 --verbose >actual &&
echo "index-version: was 4, set to 2" >expect &&
test_cmp expect actual &&
# non-verbose should be silent
git update-index --index-version 4 >actual &&
test_must_be_empty actual
'
test_done