Re: warning: massive change to conditional coding style in net?

[Jarek Poplawski <jarkao2@gmail.com>]

On 30-11-2009 11:36, William Allen Simpson wrote:
> Over the past several days, David Miller (with help from Joe Perches)
> made sweeping changes to the format of conditional statements in the
> net tree -- the equivalent of mass patches that change spaces.
> 
> This makes writing patches for multiple versions of the tree very
> difficult, and will make future pullups problematic.  It's enough to
> make a grown man cry....  Patching conflicts everywhere!
> 
> CodingStyle is mute on this issue.  Does Linus have a preference?
> 
> My personal practice (based on decades of open source projects) has
> been to use a form already used in the same file or section of code,
> matching the existing practice.
> 
> If this is to be done everywhere, CodingStyle (and SubmittingPatches)
> should be updated.
> 
> Currently, roughly 19% (7855 lines) of the -2.6 tree uses leading form:
> 
> 	if (condition
> 	    && condition
> 	    && (condition
> 	        || condition
> 	        || condition)) {
> 
> Single spaced is also fairly common:
> 
> 	if (condition
> 	 && condition
> 	 && (condition
> 	  || condition
> 	  || condition)) {
> 
> The advantage of the leading form is *readability* due to indentation,
> ease of patching and reading patches (changes affect only 1 line,
> instead of previous and following lines), and especially conditionals
> within #if sections.  Also, shorter lines (by 3 characters).
> 
> The other 81% uses trailing form, often with odd random line breaks:
> 
> 	if (condition &&
>              condition && (condition || condition ||
> 	    condition)) {
> 
> Miller (with Perches) changed hundreds (thousands?) of these to
> trailing form.  This results in a number of hilarious examples --
> lines with both leading and trailing, lines with only &&, etc.  A
> small sample for illustration:

Yes, it's even enough to make a grown man laugh....

Jarek P.