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NAME | SYNOPSIS | DESCRIPTION | SEE ALSO | AUTHOR | COLOPHON |
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GENDIFF(1) GENDIFF(1)
gendiff - utility to aid in error-free diff file generation
gendiff <directory> <diff-extension>
gendiff is a rather simple script which aids in generating a diff
file from a single directory. It takes a directory name and a
"diff-extension" as its only arguments. The diff extension should
be a unique sequence of characters added to the end of all
original, unmodified files. The output of the program is a diff
file which may be applied with the patch program to recreate the
changes.
The usual sequence of events for creating a diff is to create two
identical directories, make changes in one directory, and then use
the diff utility to create a list of differences between the two.
Using gendiff eliminates the need for the extra, original and
unmodified directory copy. Instead, only the individual files
that are modified need to be saved.
Before editing a file, copy the file, appending the extension you
have chosen to the filename. I.e. if you were going to edit
somefile.cpp and have chosen the extension "fix", copy it to
somefile.cpp.fix before editing it. Then edit the first copy
(somefile.cpp).
After editing all the files you need to edit in this fashion,
enter the directory one level above where your source code
resides, and then type
$ gendiff somedirectory .fix > mydiff-fix.patch
You should redirect the output to a file (as illustrated) unless
you want to see the results on stdout.
diff(1), patch(1)
Marc Ewing <marc@redhat.com>
This page is part of the rpm (RPM Package Manager) project.
Information about the project can be found at
⟨https://github.com/rpm-software-management/rpm⟩. It is not known
how to report bugs for this man page; if you know, please send a
mail to man-pages@man7.org. This page was obtained from the
project's upstream Git repository
⟨https://github.com/rpm-software-management/rpm.git⟩ on
2025-02-02. (At that time, the date of the most recent commit
that was found in the repository was 2025-01-31.) If you discover
any rendering problems in this HTML version of the page, or you
believe there is a better or more up-to-date source for the page,
or you have corrections or improvements to the information in this
COLOPHON (which is not part of the original manual page), send a
mail to man-pages@man7.org
Mon Jan 10 2000 GENDIFF(1)
Pages that refer to this page: rpmbuild(8)
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HTML rendering created 2025-02-02 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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