1fbb8d7ecb
In 6411a0a896 (builtin/blame: fix type of `length` variable when
emitting object ID, 2024-12-06) we have fixed the type of the `length`
variable. In order to avoid a cast from `size_t` to `int` in the call to
printf(3p) with the "%.*s" formatter we have converted the code to
instead use fwrite(3p), which accepts the length as a `size_t`.
It was reported though that this makes us read over the end of the OID
array when the provided `--abbrev=` length exceeds the length of the
object ID. This is because fwrite(3p) of course doesn't stop when it
sees a NUL byte, whereas printf(3p) does.
Fix the bug by reverting back to printf(3p) and culling the provided
length to `GIT_MAX_HEXSZ` to keep it from overflowing when cast to an
`int`.
Reported-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
153 lines
3.9 KiB
Bash
Executable File
153 lines
3.9 KiB
Bash
Executable File
#!/bin/sh
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test_description='git blame'
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GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
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export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
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TEST_CREATE_REPO_NO_TEMPLATE=1
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. ./test-lib.sh
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PROG='git blame -c'
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. "$TEST_DIRECTORY"/annotate-tests.sh
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test_expect_success 'setup' '
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hexsz=$(test_oid hexsz)
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'
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test_expect_success 'blame untracked file in empty repo' '
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>untracked &&
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test_must_fail git blame untracked
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'
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PROG='git blame -c -e'
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test_expect_success 'blame --show-email' '
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check_count \
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"<A@test.git>" 1 \
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"<B@test.git>" 1 \
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"<B1@test.git>" 1 \
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"<B2@test.git>" 1 \
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"<author@example.com>" 1 \
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"<C@test.git>" 1 \
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"<D@test.git>" 1 \
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"<E at test dot git>" 1
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'
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test_expect_success 'setup showEmail tests' '
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echo "bin: test number 1" >one &&
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git add one &&
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GIT_AUTHOR_NAME=name1 \
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GIT_AUTHOR_EMAIL=email1@test.git \
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git commit -m First --date="2010-01-01 01:00:00" &&
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cat >expected_n <<-\EOF &&
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(name1 2010-01-01 01:00:00 +0000 1) bin: test number 1
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EOF
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cat >expected_e <<-\EOF
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(<email1@test.git> 2010-01-01 01:00:00 +0000 1) bin: test number 1
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EOF
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'
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find_blame () {
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sed -e 's/^[^(]*//'
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}
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test_expect_success 'blame with no options and no config' '
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git blame one >blame &&
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find_blame <blame >result &&
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test_cmp expected_n result
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'
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test_expect_success 'blame with showemail options' '
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git blame --show-email one >blame1 &&
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find_blame <blame1 >result &&
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test_cmp expected_e result &&
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git blame -e one >blame2 &&
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find_blame <blame2 >result &&
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test_cmp expected_e result &&
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git blame --no-show-email one >blame3 &&
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find_blame <blame3 >result &&
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test_cmp expected_n result
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'
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test_expect_success 'blame with showEmail config false' '
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git config blame.showEmail false &&
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git blame one >blame1 &&
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find_blame <blame1 >result &&
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test_cmp expected_n result &&
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git blame --show-email one >blame2 &&
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find_blame <blame2 >result &&
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test_cmp expected_e result &&
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git blame -e one >blame3 &&
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find_blame <blame3 >result &&
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test_cmp expected_e result &&
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git blame --no-show-email one >blame4 &&
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find_blame <blame4 >result &&
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test_cmp expected_n result
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'
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test_expect_success 'blame with showEmail config true' '
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git config blame.showEmail true &&
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git blame one >blame1 &&
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find_blame <blame1 >result &&
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test_cmp expected_e result &&
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git blame --no-show-email one >blame2 &&
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find_blame <blame2 >result &&
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test_cmp expected_n result
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'
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test_expect_success 'set up abbrev tests' '
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test_commit abbrev &&
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sha1=$(git rev-parse --verify HEAD) &&
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check_abbrev () {
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expect=$1 && shift &&
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echo $sha1 | cut -c 1-$expect >expect &&
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git blame "$@" abbrev.t >actual &&
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perl -lne "/[0-9a-f]+/ and print \$&" <actual >actual.sha &&
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test_cmp expect actual.sha
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}
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'
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test_expect_success 'blame --abbrev=<n> works' '
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# non-boundary commits get +1 for alignment
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check_abbrev 31 --abbrev=30 HEAD &&
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check_abbrev 30 --abbrev=30 ^HEAD
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'
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test_expect_success 'blame -l aligns regular and boundary commits' '
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check_abbrev $hexsz -l HEAD &&
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check_abbrev $((hexsz - 1)) -l ^HEAD
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'
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test_expect_success 'blame --abbrev with full length behaves like -l' '
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check_abbrev $hexsz --abbrev=$hexsz HEAD &&
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check_abbrev $((hexsz - 1)) --abbrev=$hexsz ^HEAD
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'
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test_expect_success '--no-abbrev works like --abbrev with full length' '
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check_abbrev $hexsz --no-abbrev
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'
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test_expect_success 'blame --abbrev gets truncated' '
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check_abbrev $hexsz --abbrev=9000 HEAD
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'
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test_expect_success 'blame --abbrev gets truncated with boundary commit' '
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check_abbrev $hexsz --abbrev=9000 ^HEAD
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'
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test_expect_success '--exclude-promisor-objects does not BUG-crash' '
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test_must_fail git blame --exclude-promisor-objects one
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'
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test_expect_success 'blame with uncommitted edits in partial clone does not crash' '
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git init server &&
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echo foo >server/file.txt &&
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git -C server add file.txt &&
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git -C server commit -m file &&
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git clone --filter=blob:none "file://$(pwd)/server" client &&
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echo bar >>client/file.txt &&
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git -C client blame file.txt
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'
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test_done
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