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wget/PATCHES
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* Guidelines for patch submissions
==================================
** Where to send the patches.
Patches intended to be applied to Wget should be mailed to
<wget-patches@sunsite.auc.dk>. Each patch will be reviewed by the
developers, and will be acked and added to the distribution, or
rejected with an explanation.
If you want to discuss your patch with the community of Wget users and
developers, it is OK to send it to the general list at
<wget@sunsite.auc.dk>. If the patch is really large (more than 100K),
you may want to put it on the web and post the URL.
If your mail composer or gateway is inclined to munge patches, e.g. by
line-wrapping them, send them out as a MIME attachment. Otherwise,
patches simply inserted into an email message are fine.
** How to create patches.
Patches are created using the `diff' utility. When making patches,
please use the `-u' option, or if your diff doesn't support it, `-c'.
Using ordinary (context-free) diffs are notoriously prone to error,
since line numbers tend to change when others make changes to the same
source file.
An example of the `diff' usage:
diff -u OLDFILE NEWFILE
-or-
diff -c OLDFILE NEWFILE
Also, it is helpful if you create the patch in the top level of
the Wget source directory:
$ cp -p src/http.c src/http.c.orig
...hack, hack, hack....
$ diff -u src/http.c.orig src/http.c
If your patch changes more than one file, the output of all the diff
invocations should be concatenated to form a single patch.
Alternatively, you can use the `-r' option to compare entire
directories. If you do that, be careful not to include the
differences to automatically generated files, such as `.info*'.
If you run on Windows and don't have `diff' handy, please get one.
It's extremely hard to review changes to files unless they're in the
form of a patch. If you really cannot use a variant of `diff', then
mail us the whole new file and specify which version of Wget you
changed; that way we will be able to generate the diff ourselves.
** Standards and coding style.
Wget abides by the GNU coding standards, available at:
http://www.gnu.org/prep/standards.html
The most important point in that entire document is "no arbitrary
limits". Even when Wget's coding is less than exemplary, it respects
that rule. There should be no exceptions.
Here is a short recap of the indentation/naming rules, borrowed from
XEmacs:
-- Put a space after every comma.
-- Put a space before the parenthesis that begins a function call,
macro call, function declaration or definition, or control
statement (if, while, switch, for). (DO NOT do this for macro
definitions; this is invalid preprocessor syntax.)
-- The brace that begins a control statement (if, while, for, switch,
do) or a function definition should go on a line by itself.
-- In function definitions, put the return type and all other
qualifiers on a line before the function name. Thus, the function
name is always at the beginning of a line.
-- Indentation level is two spaces. (However, the first and following
statements of a while/for/if/etc. block are indented four spaces
from the while/for/if keyword. The opening and closing braces are
indented two spaces.)
-- Variable and function names should be all lowercase, with
underscores separating words, except for a prefixing tag, which may
be in uppercase. Do not use the mixed-case convention (e.g.
SetVariableToValue ()) and *especially* do not use Microsoft
Hungarian notation (char **rgszRedundantTag).
-- preprocessor and enum constants should be all uppercase, and should
be prefixed with a tag that groups related constants together.
** ChangeLog policy.
Each patch should be accompanied by an update to the appropriate
ChangeLog file. Please don't mail patches to ChangeLog because they
have an extremely high rate of failure; just mail us the new part of
the ChangeLog you added. Patches without a ChangeLog entry will be
accepted, but this creates additional work for the maintainers, so
please do write the ChangeLog entries.
Guidelines for writing ChangeLog entries are also governed by the GNU
coding standards, under the "Change Logs" section.