[vdr] suggestion: version stamping of patches

Udo Richter udo_richter at gmx.de
Thu Jun 2 21:24:58 CEST 2005

Rainer Zocholl wrote:
> The "redundant" "/* Filename audio.h: */" is
> to give "patch" some fix points for "fuzzy" logic,
> as this file might have many changes.

A diff -u needs at least three common lines before and after each change
to pass through with 'fuzz'. And because this is a generated file, no
patch should change it. In fact, it will be a common mistake to include
this file in patches.

> If a patch is applied it could add it's own "Id$: patch" to
> the modified source file.
> Or it changes the CVS $Id.

Again, if two patches try to modify the same source file, they MUST
collide, because both want to change the $Id line. Then we'll be in
patching hell, because patches will require proper ordering and depend
on each other. (... patch X for plain vanilla VDR, patch X.1 for users
of patch Y, patch X.2 for users of patch Z, patch X.3 for users of patch
Y AND Z, ...)

The only way that wont introduce unnecessary conflicts is to add NEW
files, like installed-patches/MyPatchName.info, and then collect all
these info files somehow.

However, first, this requires such a method to be implemented in VDR, so
you need Klaus to do it, and second, all patches must be adapted to
support this. You really think this will work?



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