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Author	SHA1	Message	Date
Gary V. Vaughan	4fdf71be1c	tests: use "test_cmp", not "diff", when verifying the result In tests, call test_cmp rather than raw diff where possible (i.e. if the output does not go to a pipe), to allow the use of, say, 'cmp' when the default 'diff -u' is not compatible with a vendor diff. When that is not possible, use $DIFF, as set in GIT-BUILD-OPTIONS. Signed-off-by: Gary V. Vaughan <gary@thewrittenword.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	15 years ago
Junio C Hamano	16652170bf	An illustration of rev-list --parents --pretty=raw This script creates two separate histories, A and B, each of which does: (A0, B0): create fileA and subdir/fileB (A1, B1): modify fileA (A2, B2): modify subdir/fileB and then grafts them together to make B0 a child of A2. So the final history looks like (time flows from top to bottom): true parent touches subdir? A0 none yes (creates it) A1 A0 no A2 A1 yes B0 none yes (different from what's in A2) B1 B0 no B2 B1 yes "git rev-list --parents --pretty=raw B2" would give "fake" parents on the "commit " header lines while "parent " header lines show the parent as recorded in the commit object (i.e. B0 appears to have A2 as its parent on "commit " header but there is no "parent A2" header line in it). When you have path limiters, we simplify history to omit commits that do not affect the specified paths. So "git rev-list --parents --pretty=raw B2 subdir" would return "B2 B0 A2 A0" (because B1 and A1 do not touch the path). When it does so, the "commit " header lines have "fake" parents (i.e. B2 appears to have B0 as its parent on "commit " header), but you can still get the true parents by looking at "parent " header. Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago

Author

SHA1

Message

Date

Gary V. Vaughan

4fdf71be1c

tests: use "test_cmp", not "diff", when verifying the result

In tests, call test_cmp rather than raw diff where possible (i.e. if
the output does not go to a pipe), to allow the use of, say, 'cmp'
when the default 'diff -u' is not compatible with a vendor diff.

When that is not possible, use $DIFF, as set in GIT-BUILD-OPTIONS.

Signed-off-by: Gary V. Vaughan <gary@thewrittenword.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

15 years ago

Junio C Hamano

16652170bf

An illustration of rev-list --parents --pretty=raw

This script creates two separate histories, A and B, each of
which does:

      (A0, B0): create fileA and subdir/fileB
      (A1, B1): modify fileA
      (A2, B2): modify subdir/fileB

and then grafts them together to make B0 a child of A2.  So
the final history looks like (time flows from top to bottom):

		true parent	touches subdir?

	A0	none		yes (creates it)
        A1      A0		no
        A2	A1		yes
        B0	none		yes (different from what's in A2)
        B1	B0		no
        B2	B1		yes

"git rev-list --parents --pretty=raw B2" would give "fake"
parents on the "commit " header lines while "parent " header
lines show the parent as recorded in the commit object (i.e. B0
appears to have A2 as its parent on "commit " header but there
is no "parent A2" header line in it).

When you have path limiters, we simplify history to omit
commits that do not affect the specified paths.

So "git rev-list --parents --pretty=raw B2 subdir" would return
"B2 B0 A2 A0" (because B1 and A1 do not touch the path).  When
it does so, the "commit " header lines have "fake" parents
(i.e. B2 appears to have B0 as its parent on "commit " header),
but you can still get the true parents by looking at "parent "
header.

Signed-off-by: Junio C Hamano <junkio@cox.net>

19 years ago

2 Commits (88202b9ce6ae09eaeb228104536ecf78ef50f0db)