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![Ævar Arnfjörð Bjarmason](/assets/img/avatar_default.png)
Fix a memory leak in code added in5d7eeee2ac
(git-show: grok blobs, trees and tags, too, 2006-12-14). As we iterate over a "<revision>..." command-line and encounter ad OBJ_COMMIT we want to use our "struct rev_info", but with a "pending" array of one element: the one commit we're showing in the loop. To do this5d7eeee2ac
saved away a pointer to rev.pending.objects and rev.pending.nr for its iteration. We'd then clobber those (and alloc) when we needed to show an OBJ_COMMIT. We'd therefore leak the "rev.pending" we started out with, and only free the new "rev.pending" in the "OBJ_COMMIT" case arm as prepare_revision_walk() would draw it down. Let's fix this memory leak. Now when we encounter an OBJ_COMMIT we save away the "rev.pending" before clearing it. We then add a single commit to it, which our indirect invocation of prepare_revision_walk() will remove. After that we restore the "rev.pending". Our "rev.pending" will then get free'd by the release_revisions() added inf6bfea0ad0
(revisions API users: use release_revisions() in builtin/log.c, 2022-04-13) Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
172 lines
3.8 KiB
Bash
Executable file
172 lines
3.8 KiB
Bash
Executable file
#!/bin/sh
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test_description='git show'
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TEST_PASSES_SANITIZE_LEAK=true
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. ./test-lib.sh
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test_expect_success setup '
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echo hello world >foo &&
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H=$(git hash-object -w foo) &&
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git tag -a foo-tag -m "Tags $H" $H &&
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HH=$(expr "$H" : "\(..\)") &&
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H38=$(expr "$H" : "..\(.*\)") &&
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rm -f .git/objects/$HH/$H38
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'
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test_expect_success 'showing a tag that point at a missing object' '
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test_must_fail git --no-pager show foo-tag
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'
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test_expect_success 'set up a bit of history' '
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test_commit main1 &&
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test_commit main2 &&
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test_commit main3 &&
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git tag -m "annotated tag" annotated &&
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git checkout -b side HEAD^^ &&
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test_commit side2 &&
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test_commit side3 &&
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test_merge merge main3
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'
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test_expect_success 'showing two commits' '
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cat >expect <<-EOF &&
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commit $(git rev-parse main2)
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commit $(git rev-parse main3)
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EOF
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git show main2 main3 >actual &&
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grep ^commit actual >actual.filtered &&
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test_cmp expect actual.filtered
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'
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test_expect_success 'showing a tree' '
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cat >expected <<-EOF &&
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tree main1:
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main1.t
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EOF
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git show main1: >actual &&
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test_cmp expected actual
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'
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test_expect_success 'showing two trees' '
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cat >expected <<-EOF &&
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tree main1^{tree}
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main1.t
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tree main2^{tree}
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main1.t
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main2.t
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EOF
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git show main1^{tree} main2^{tree} >actual &&
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test_cmp expected actual
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'
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test_expect_success 'showing a trees is not recursive' '
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git worktree add not-recursive main1 &&
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mkdir not-recursive/a &&
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test_commit -C not-recursive a/file &&
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cat >expected <<-EOF &&
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tree HEAD^{tree}
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a/
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main1.t
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EOF
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git -C not-recursive show HEAD^{tree} >actual &&
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test_cmp expected actual
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'
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test_expect_success 'showing a range walks (linear)' '
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cat >expect <<-EOF &&
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commit $(git rev-parse main3)
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commit $(git rev-parse main2)
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EOF
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git show main1..main3 >actual &&
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grep ^commit actual >actual.filtered &&
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test_cmp expect actual.filtered
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'
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test_expect_success 'showing a range walks (Y shape, ^ first)' '
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cat >expect <<-EOF &&
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commit $(git rev-parse main3)
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commit $(git rev-parse main2)
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EOF
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git show ^side3 main3 >actual &&
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grep ^commit actual >actual.filtered &&
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test_cmp expect actual.filtered
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'
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test_expect_success 'showing a range walks (Y shape, ^ last)' '
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cat >expect <<-EOF &&
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commit $(git rev-parse main3)
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commit $(git rev-parse main2)
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EOF
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git show main3 ^side3 >actual &&
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grep ^commit actual >actual.filtered &&
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test_cmp expect actual.filtered
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'
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test_expect_success 'showing with -N walks' '
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cat >expect <<-EOF &&
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commit $(git rev-parse main3)
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commit $(git rev-parse main2)
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EOF
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git show -2 main3 >actual &&
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grep ^commit actual >actual.filtered &&
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test_cmp expect actual.filtered
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'
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test_expect_success 'showing annotated tag' '
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cat >expect <<-EOF &&
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tag annotated
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commit $(git rev-parse annotated^{commit})
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EOF
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git show annotated >actual &&
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grep -E "^(commit|tag)" actual >actual.filtered &&
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test_cmp expect actual.filtered
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'
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test_expect_success 'showing annotated tag plus commit' '
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cat >expect <<-EOF &&
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tag annotated
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commit $(git rev-parse annotated^{commit})
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commit $(git rev-parse side3)
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EOF
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git show annotated side3 >actual &&
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grep -E "^(commit|tag)" actual >actual.filtered &&
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test_cmp expect actual.filtered
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'
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test_expect_success 'showing range' '
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cat >expect <<-EOF &&
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commit $(git rev-parse main3)
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commit $(git rev-parse main2)
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EOF
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git show ^side3 annotated >actual &&
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grep -E "^(commit|tag)" actual >actual.filtered &&
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test_cmp expect actual.filtered
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'
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test_expect_success '-s suppresses diff' '
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cat >expect <<-\EOF &&
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merge
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main3
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EOF
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git show -s --format=%s merge main3 >actual &&
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test_cmp expect actual
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'
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test_expect_success '--quiet suppresses diff' '
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echo main3 >expect &&
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git show --quiet --format=%s main3 >actual &&
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test_cmp expect actual
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'
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test_expect_success 'show --graph is forbidden' '
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test_must_fail git show --graph HEAD
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'
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test_done
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