kernel/git - git - PowerEL Git System

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Author	SHA1	Message	Date
Linus Torvalds	7d004199d1	Make revision limiting more robust against occasional bad commit dates The revision limiter uses the commit date to decide when it has seen enough commits to finalize the revision list, but that can get confused if there are incorrect dates far in the past on some commits. This makes the logic a bit more robust by - we always walk an extra SLOP commits from the source list even if we decide that the source list is probably all done (unless the source is entirely empty, of course, because then we really can't do anything at all) - we keep track of the date of the last commit we added to the destination list (this will generally be the oldest entry we've seen so far) - we compare that with the youngest entry (the first one) of the source list, and if the destination is older than the source, we know we want to look at the source. which causes occasional date mishaps to be handled cleanly. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>	17 years ago
Jeff King	82ebb0b6ec	add test_cmp function for test scripts Many scripts compare actual and expected output using "diff -u". This is nicer than "cmp" because the output shows how the two differ. However, not all versions of diff understand -u, leading to unnecessary test failure. This adds a test_cmp function to the test scripts and switches all "diff -u" invocations to use it. The function uses the contents of "$GIT_TEST_CMP" to compare its arguments; the default is "diff -u". On systems with a less-capable diff, you can do: GIT_TEST_CMP=cmp make test Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>	17 years ago
Junio C Hamano	991c3dc79f	known breakage: revision range computation with clock skew This is the absolute minimum (and reliable) reproduction recipe to demonstrate that revision range in a history with clock skew sometimes fails to mark UNINTERESTING commit in topologically early parts of the history. The history looks like this: o---o---o---o one four but one has the largest timestamp. "git rev-list four..one" fails to notice that "one" should not be emitted. Signed-off-by: Junio C Hamano <gitster@pobox.com>	17 years ago

Author

SHA1

Message

Date

Linus Torvalds

7d004199d1

Make revision limiting more robust against occasional bad commit dates

The revision limiter uses the commit date to decide when it has seen
enough commits to finalize the revision list, but that can get confused
if there are incorrect dates far in the past on some commits.

This makes the logic a bit more robust by

 - we always walk an extra SLOP commits from the source list even if we
   decide that the source list is probably all done (unless the source is
   entirely empty, of course, because then we really can't do anything at
   all)

 - we keep track of the date of the last commit we added to the
   destination list (this will *generally* be the oldest entry we've seen
   so far)

 - we compare that with the youngest entry (the first one) of the source
   list, and if the destination is older than the source, we know we want
   to look at the source.

which causes occasional date mishaps to be handled cleanly.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

17 years ago

Jeff King

82ebb0b6ec

add test_cmp function for test scripts

Many scripts compare actual and expected output using
"diff -u". This is nicer than "cmp" because the output shows
how the two differ. However, not all versions of diff
understand -u, leading to unnecessary test failure.

This adds a test_cmp function to the test scripts and
switches all "diff -u" invocations to use it. The function
uses the contents of "$GIT_TEST_CMP" to compare its
arguments; the default is "diff -u".

On systems with a less-capable diff, you can do:

  GIT_TEST_CMP=cmp make test

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

17 years ago

Junio C Hamano

991c3dc79f

known breakage: revision range computation with clock skew

This is the absolute minimum (and reliable) reproduction recipe
to demonstrate that revision range in a history with clock skew
sometimes fails to mark UNINTERESTING commit in topologically
early parts of the history.

The history looks like this:

	o---o---o---o
	one         four

but one has the largest timestamp.  "git rev-list four..one"
fails to notice that "one" should not be emitted.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

17 years ago

3 Commits (4c8d4c14c6de59bc14d6118724ffee949e8654a7)