git/t/t4209-log-pickaxe.sh
Patrick Steinhardt 38678e5df5 userdiff: fix leaking memory for configured diff drivers
The userdiff structures may be initialized either statically on the
stack or dynamically via configuration keys. In the latter case we end
up leaking memory because we didn't have any infrastructure to discern
those strings which have been allocated statically and those which have
been allocated dynamically.

Refactor the code such that we have two pointers for each of these
strings: one that holds the value as accessed by other subsystems, and
one that points to the same string in case it has been allocated. Like
this, we can safely free the second pointer and thus plug those memory
leaks.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-08-14 10:08:01 -07:00

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#!/bin/sh
test_description='log --grep/--author/--regexp-ignore-case/-S/-G'
TEST_PASSES_SANITIZE_LEAK=true
. ./test-lib.sh
test_log () {
expect=$1
kind=$2
needle=$3
shift 3
rest=$@
case $kind in
--*)
opt=$kind=$needle
;;
*)
opt=$kind$needle
;;
esac
case $expect in
expect_nomatch)
match=nomatch
;;
*)
match=match
;;
esac
test_expect_success "log $kind${rest:+ $rest} ($match)" "
git log $rest $opt --format=%H >actual &&
test_cmp $expect actual
"
}
# test -i and --regexp-ignore-case and expect both to behave the same way
test_log_icase () {
test_log $@ --regexp-ignore-case
test_log $@ -i
}
test_expect_success setup '
>expect_nomatch &&
>file &&
git add file &&
test_tick &&
git commit -m initial &&
git rev-parse --verify HEAD >expect_initial &&
echo Picked >file &&
git add file &&
test_tick &&
git commit --author="Another Person <another@example.com>" -m second &&
git rev-parse --verify HEAD >expect_second
'
test_expect_success 'usage' '
test_expect_code 129 git log -S 2>err &&
test_grep "switch.*requires a value" err &&
test_expect_code 129 git log -G 2>err &&
test_grep "switch.*requires a value" err &&
test_expect_code 128 git log -Gregex -Sstring 2>err &&
grep "cannot be used together" err &&
test_expect_code 128 git log -Gregex --find-object=HEAD 2>err &&
grep "cannot be used together" err &&
test_expect_code 128 git log -Sstring --find-object=HEAD 2>err &&
grep "cannot be used together" err &&
test_expect_code 128 git log --pickaxe-all --find-object=HEAD 2>err &&
grep "cannot be used together" err
'
test_expect_success 'usage: --pickaxe-regex' '
test_expect_code 128 git log -Gregex --pickaxe-regex 2>err &&
grep "cannot be used together" err
'
test_expect_success 'usage: --no-pickaxe-regex' '
cat >expect <<-\EOF &&
fatal: unrecognized argument: --no-pickaxe-regex
EOF
test_expect_code 128 git log -Sstring --no-pickaxe-regex 2>actual &&
test_cmp expect actual &&
test_expect_code 128 git log -Gstring --no-pickaxe-regex 2>err &&
test_cmp expect actual
'
test_log expect_initial --grep initial
test_log expect_nomatch --grep InItial
test_log_icase expect_initial --grep InItial
test_log_icase expect_nomatch --grep initail
test_log expect_second --author Person
test_log expect_nomatch --author person
test_log_icase expect_second --author person
test_log_icase expect_nomatch --author spreon
test_log expect_nomatch -G picked
test_log expect_second -G Picked
test_log_icase expect_nomatch -G pickle
test_log_icase expect_second -G picked
test_expect_success 'log -G --textconv (missing textconv tool)' '
echo "* diff=test" >.gitattributes &&
test_must_fail git -c diff.test.textconv=missing log -Gfoo &&
rm .gitattributes
'
test_expect_success 'log -G --no-textconv (missing textconv tool)' '
echo "* diff=test" >.gitattributes &&
git -c diff.test.textconv=missing log -Gfoo --no-textconv >actual &&
test_cmp expect_nomatch actual &&
rm .gitattributes
'
test_log expect_nomatch -S picked
test_log expect_second -S Picked
test_log_icase expect_second -S picked
test_log_icase expect_nomatch -S pickle
test_log expect_nomatch -S p.cked --pickaxe-regex
test_log expect_second -S P.cked --pickaxe-regex
test_log_icase expect_second -S p.cked --pickaxe-regex
test_log_icase expect_nomatch -S p.ckle --pickaxe-regex
test_expect_success 'log -S --textconv (missing textconv tool)' '
echo "* diff=test" >.gitattributes &&
test_must_fail git -c diff.test.textconv=missing log -Sfoo &&
rm .gitattributes
'
test_expect_success 'log -S --no-textconv (missing textconv tool)' '
echo "* diff=test" >.gitattributes &&
git -c diff.test.textconv=missing log -Sfoo --no-textconv >actual &&
test_cmp expect_nomatch actual &&
rm .gitattributes
'
test_expect_success 'setup log -[GS] plain & regex' '
test_create_repo GS-plain &&
test_commit -C GS-plain --append A data.txt "a" &&
test_commit -C GS-plain --append B data.txt "a a" &&
test_commit -C GS-plain --append C data.txt "b" &&
test_commit -C GS-plain --append D data.txt "[b]" &&
test_commit -C GS-plain E data.txt "" &&
# We also include E, the deletion commit
git -C GS-plain log --grep="[ABE]" >A-to-B-then-E-log &&
git -C GS-plain log --grep="[CDE]" >C-to-D-then-E-log &&
git -C GS-plain log --grep="[DE]" >D-then-E-log &&
git -C GS-plain log >full-log
'
test_expect_success 'log -G trims diff new/old [-+]' '
git -C GS-plain log -G"[+-]a" >log &&
test_must_be_empty log &&
git -C GS-plain log -G"^a" >log &&
test_cmp log A-to-B-then-E-log
'
test_expect_success 'log -S<pat> is not a regex, but -S<pat> --pickaxe-regex is' '
git -C GS-plain log -S"a" >log &&
test_cmp log A-to-B-then-E-log &&
git -C GS-plain log -S"[a]" >log &&
test_must_be_empty log &&
git -C GS-plain log -S"[a]" --pickaxe-regex >log &&
test_cmp log A-to-B-then-E-log &&
git -C GS-plain log -S"[b]" >log &&
test_cmp log D-then-E-log &&
git -C GS-plain log -S"[b]" --pickaxe-regex >log &&
test_cmp log C-to-D-then-E-log
'
test_expect_success 'setup log -[GS] binary & --text' '
test_create_repo GS-bin-txt &&
test_commit -C GS-bin-txt --printf A data.bin "a\na\0a\n" &&
test_commit -C GS-bin-txt --append --printf B data.bin "a\na\0a\n" &&
test_commit -C GS-bin-txt C data.bin "" &&
git -C GS-bin-txt log >full-log
'
test_expect_success 'log -G ignores binary files' '
git -C GS-bin-txt log -Ga >log &&
test_must_be_empty log
'
test_expect_success 'log -G looks into binary files with -a' '
git -C GS-bin-txt log -a -Ga >log &&
test_cmp log full-log
'
test_expect_success 'log -G looks into binary files with textconv filter' '
test_when_finished "rm GS-bin-txt/.gitattributes" &&
(
cd GS-bin-txt &&
echo "* diff=bin" >.gitattributes &&
git -c diff.bin.textconv=cat log -Ga >../log
) &&
test_cmp log full-log
'
test_expect_success 'log -S looks into binary files' '
git -C GS-bin-txt log -Sa >log &&
test_cmp log full-log
'
test_expect_success 'log -S --pickaxe-regex looks into binary files' '
git -C GS-bin-txt log --pickaxe-regex -Sa >log &&
test_cmp log full-log &&
git -C GS-bin-txt log --pickaxe-regex -S"[a]" >log &&
test_cmp log full-log
'
test_done