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a52f07afcb
Extend the the release_revisions() function so that it frees the "mailmap" in the "struct rev_info". The log family of functions now calls the clear_mailmap() function added in fa8afd18e5a (revisions API: provide and use a release_revisions(), 2021-09-19), allowing us to whitelist some tests with "TEST_PASSES_SANITIZE_LEAK=true". Unfortunately having a pointer to a mailmap in "struct rev_info" instead of an embedded member that we "own" get a bit messy, as can be seen in the change to builtin/commit.c. When we free() this data we won't be able to tell apart a pointer to a "mailmap" on the heap from one on the stack. As seen inea57bc0d41(log: add --use-mailmap option, 2013-01-05) the "log" family allocates it on the heap, but in the find_author_by_nickname() code added inea16794e43(commit: search author pattern against mailmap, 2013-08-23) we allocated it on the stack instead. Ideally we'd simply change that member to a "struct string_list mailmap" and never free() the "mailmap" itself, but that would be a much larger change to the revisions API. We have code that needs to hand an existing "mailmap" to a "struct rev_info", while we could change all of that, let's not go there now. The complexity isn't in the ownership of the "mailmap" per-se, but that various things assume a "rev_info.mailmap == NULL" means "doesn't want mailmap", if we changed that to an init'd "struct string_list we'd need to carefully refactor things to change those assumptions. Let's instead always free() it, and simply declare that if you add such a "mailmap" it must be allocated on the heap. Any modern libc will correctly panic if we free() a stack variable, so this should be safe going forward. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
140 lines
2.2 KiB
Bash
Executable File
140 lines
2.2 KiB
Bash
Executable File
#!/bin/sh
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#
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# Copyright (c) 2007 Johannes E. Schindelin
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#
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test_description='Test commit notes index (expensive!)'
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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_PASSES_SANITIZE_LEAK=true
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. ./test-lib.sh
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create_repo () {
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number_of_commits=$1
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nr=0
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test -d .git || {
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git init &&
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(
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while test $nr -lt $number_of_commits
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do
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nr=$(($nr+1))
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mark=$(($nr+$nr))
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notemark=$(($mark+1))
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test_tick &&
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cat <<-INPUT_END &&
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commit refs/heads/main
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mark :$mark
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committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
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data <<COMMIT
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commit #$nr
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COMMIT
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M 644 inline file
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data <<EOF
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file in commit #$nr
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EOF
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blob
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mark :$notemark
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data <<EOF
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note for commit #$nr
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EOF
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INPUT_END
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echo "N :$notemark :$mark" >>note_commit
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done &&
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test_tick &&
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cat <<-INPUT_END &&
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commit refs/notes/commits
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committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
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data <<COMMIT
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notes
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COMMIT
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INPUT_END
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cat note_commit
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) |
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git fast-import --quiet &&
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git config core.notesRef refs/notes/commits
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}
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}
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test_notes () {
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count=$1 &&
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git config core.notesRef refs/notes/commits &&
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git log >tmp &&
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grep "^ " tmp >output &&
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i=$count &&
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while test $i -gt 0
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do
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echo " commit #$i" &&
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echo " note for commit #$i" &&
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i=$(($i-1))
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done >expect &&
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test_cmp expect output
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}
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write_script time_notes <<\EOF
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mode=$1
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i=1
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while test $i -lt $2
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do
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case $1 in
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no-notes)
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GIT_NOTES_REF=non-existing
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export GIT_NOTES_REF
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;;
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notes)
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unset GIT_NOTES_REF
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;;
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esac
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git log || exit $?
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i=$(($i+1))
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done >/dev/null
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EOF
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time_notes () {
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for mode in no-notes notes
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do
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echo $mode
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/usr/bin/time ../time_notes $mode $1
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done
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}
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do_tests () {
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count=$1 pr=${2-}
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test_expect_success $pr "setup $count" '
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mkdir "$count" &&
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(
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cd "$count" &&
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create_repo "$count"
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)
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'
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test_expect_success $pr 'notes work' '
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(
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cd "$count" &&
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test_notes "$count"
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)
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'
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test_expect_success "USR_BIN_TIME${pr:+,$pr}" 'notes timing with /usr/bin/time' '
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(
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cd "$count" &&
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time_notes 100
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)
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'
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}
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do_tests 10
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for count in 100 1000 10000
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do
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do_tests "$count" EXPENSIVE
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done
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test_done
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