FLIPDIFF(1) Man pages FLIPDIFF(1)NAMEflipdiff - exchange the order of two incremental patches
SYNOPSISflipdiff [-p n] [-U n] [-Bbiwz] [--in-place] diff1 diff2
flipdiff {[--help] | [--version]}
DESCRIPTIONflipdiff exchanges the order of two patch files that apply one after
the other. The patches must be “clean”: the context lines must match
and there should be no mis-matched offsets.
The swapped patches are sent to standard output, with a marker line
(“===8<===cuthere===8<===”) between them, unless the --in-place option
is passed. In that case, the output is written back to the original
input files.
OPTIONS-p n
When comparing filenames, ignore the first n pathname components
from both patches. (This is similar to the -p option to GNU
patch(1).)
-U n
Attempt to display n lines of context (requires at least n lines of
context in both input files). (This is similar to the -U option to
GNU diff(1).)
-d pattern
Don´t display any context on files that match the shell wildcard
pattern. This option can be given multiple times.
Note that the interpretation of the shell wildcard pattern does not
count slash characters or periods as special (in other words, no
flags are given to fnmatch). This is so that “*/basename”-type
patterns can be given without limiting the number of pathname
components.
-i
Consider upper- and lower-case to be the same.
-w
Ignore whitespace changes in patches.
-b
Ignore changes in the amount of whitespace.
-B
Ignore changes whose lines are all blank.
-z
Decompress files with extensions .gz and .bz2.
--in-place
Write output to the original input files.
--help
Display a short usage message.
--version
Display the version number of flipdiff.
LIMITATIONS
This is only been very lightly tested, and may not even work. Using
--in-place is not recommended at the moment.
There are some cases in which it is not possible to meaningfully flip
patches without understanding the semantics of the content. This
program only uses complete lines that appear at some stage during the
application of the two patches, and never composes a line from parts.
Because of this, it is generally a good idea to read through the output
to check that it makes sense.
AUTHOR
Tim Waugh <twaugh@redhat.com>
Author.
patchutils 31 January 2003 FLIPDIFF(1)