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838f9a1566
The reflog walking logic (git log -g) replaces the true parent list with the preceding commit in the reflog. This results in bogus commit diffs when combined with options such as -p; the diff is against the reflog predecessor, not the parent of the commit. Save the true parents on the side, extending the functions from the previous commit. The diff logic picks them up and uses them to show the correct diffs. We do have to be somewhat careful about repeated calling of save_parents(), since the reflog may list a commit more than once. We now store (commit_list*)-1 to distinguish the "not saved yet" and "root commit" cases. This lets us preserve an empty parent list even if save_parents() is repeatedly called. Suggested-by: Jeff King <peff@peff.net> Signed-off-by: Thomas Rast <trast@inf.ethz.ch> Signed-off-by: Junio C Hamano <gitster@pobox.com>
169 lines
4.2 KiB
Bash
Executable file
169 lines
4.2 KiB
Bash
Executable file
#!/bin/sh
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test_description='Test reflog display routines'
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. ./test-lib.sh
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test_expect_success 'setup' '
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echo content >file &&
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git add file &&
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test_tick &&
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git commit -m one
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'
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cat >expect <<'EOF'
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Reflog: HEAD@{0} (C O Mitter <committer@example.com>)
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Reflog message: commit (initial): one
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EOF
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test_expect_success 'log -g shows reflog headers' '
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git log -g -1 >tmp &&
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grep ^Reflog <tmp >actual &&
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test_cmp expect actual
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'
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cat >expect <<'EOF'
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e46513e HEAD@{0}: commit (initial): one
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EOF
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test_expect_success 'oneline reflog format' '
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git log -g -1 --oneline >actual &&
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test_cmp expect actual
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'
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test_expect_success 'reflog default format' '
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git reflog -1 >actual &&
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test_cmp expect actual
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'
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cat >expect <<'EOF'
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commit e46513e
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Reflog: HEAD@{0} (C O Mitter <committer@example.com>)
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Reflog message: commit (initial): one
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Author: A U Thor <author@example.com>
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one
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EOF
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test_expect_success 'override reflog default format' '
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git reflog --format=short -1 >actual &&
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test_cmp expect actual
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'
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cat >expect <<'EOF'
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Reflog: HEAD@{Thu Apr 7 15:13:13 2005 -0700} (C O Mitter <committer@example.com>)
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Reflog message: commit (initial): one
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EOF
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test_expect_success 'using @{now} syntax shows reflog date (multiline)' '
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git log -g -1 HEAD@{now} >tmp &&
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grep ^Reflog <tmp >actual &&
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test_cmp expect actual
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'
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cat >expect <<'EOF'
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e46513e HEAD@{Thu Apr 7 15:13:13 2005 -0700}: commit (initial): one
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EOF
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test_expect_success 'using @{now} syntax shows reflog date (oneline)' '
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git log -g -1 --oneline HEAD@{now} >actual &&
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test_cmp expect actual
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'
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cat >expect <<'EOF'
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HEAD@{Thu Apr 7 15:13:13 2005 -0700}
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EOF
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test_expect_success 'using @{now} syntax shows reflog date (format=%gd)' '
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git log -g -1 --format=%gd HEAD@{now} >actual &&
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test_cmp expect actual
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'
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cat >expect <<'EOF'
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Reflog: HEAD@{Thu Apr 7 15:13:13 2005 -0700} (C O Mitter <committer@example.com>)
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Reflog message: commit (initial): one
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EOF
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test_expect_success 'using --date= shows reflog date (multiline)' '
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git log -g -1 --date=default >tmp &&
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grep ^Reflog <tmp >actual &&
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test_cmp expect actual
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'
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cat >expect <<'EOF'
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e46513e HEAD@{Thu Apr 7 15:13:13 2005 -0700}: commit (initial): one
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EOF
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test_expect_success 'using --date= shows reflog date (oneline)' '
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git log -g -1 --oneline --date=default >actual &&
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test_cmp expect actual
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'
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cat >expect <<'EOF'
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HEAD@{1112911993 -0700}
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EOF
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test_expect_success 'using --date= shows reflog date (format=%gd)' '
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git log -g -1 --format=%gd --date=raw >actual &&
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test_cmp expect actual
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'
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cat >expect <<'EOF'
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Reflog: HEAD@{0} (C O Mitter <committer@example.com>)
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Reflog message: commit (initial): one
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EOF
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test_expect_success 'log.date does not invoke "--date" magic (multiline)' '
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test_config log.date raw &&
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git log -g -1 >tmp &&
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grep ^Reflog <tmp >actual &&
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test_cmp expect actual
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'
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cat >expect <<'EOF'
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e46513e HEAD@{0}: commit (initial): one
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EOF
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test_expect_success 'log.date does not invoke "--date" magic (oneline)' '
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test_config log.date raw &&
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git log -g -1 --oneline >actual &&
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test_cmp expect actual
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'
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cat >expect <<'EOF'
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HEAD@{0}
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EOF
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test_expect_success 'log.date does not invoke "--date" magic (format=%gd)' '
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test_config log.date raw &&
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git log -g -1 --format=%gd >actual &&
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test_cmp expect actual
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'
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cat >expect <<'EOF'
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HEAD@{0}
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EOF
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test_expect_success '--date magic does not override explicit @{0} syntax' '
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git log -g -1 --format=%gd --date=raw HEAD@{0} >actual &&
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test_cmp expect actual
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'
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: >expect
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test_expect_success 'empty reflog file' '
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git branch empty &&
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: >.git/logs/refs/heads/empty &&
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git log -g empty >actual &&
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test_cmp expect actual
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'
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# This guards against the alternative of showing the diffs vs. the
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# reflog ancestor. The reflog used is designed to list the commits
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# more than once, so as to exercise the corresponding logic.
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test_expect_success 'git log -g -p shows diffs vs. parents' '
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test_commit two &&
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git branch flipflop &&
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git update-ref refs/heads/flipflop -m flip1 HEAD^ &&
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git update-ref refs/heads/flipflop -m flop1 HEAD &&
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git update-ref refs/heads/flipflop -m flip2 HEAD^ &&
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git log -g -p flipflop >reflog &&
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grep -v ^Reflog reflog >actual &&
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git log -1 -p HEAD^ >log.one &&
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git log -1 -p HEAD >log.two &&
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(
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cat log.one; echo
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cat log.two; echo
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cat log.one; echo
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cat log.two
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) >expect &&
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test_cmp expect actual
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'
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test_done
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