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Date:	Mon, 12 Nov 2001 05:55:11 -0500
From:	Charles Wilson <cwilson AT ece DOT gatech DOT edu>
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To:	Charles Wilson <cwilson AT ece DOT gatech DOT edu>
CC:	Robert Collins <robert DOT collins AT itdomain DOT com DOT au>,
	Corinna Vinschen <cygwin-apps AT cygwin DOT com>
Subject:	Re: patches to vendor source trees - discussion
References:	<EA18B9FA0FE4194AA2B4CDB91F73C0EF7A48 AT itdomain002 DOT itdomain DOT net DOT au> <3BE4D4A7 .2070900 AT ece DOT gatech DOT edu> <20011104104732 DOT X17306 AT cygbert DOT vinschen DOT de> <1004867892 DOT 5388 DOT 54 DOT camel AT lifelesswks> <3BE702C3 DOT 5010008 AT ece DOT gatech DOT edu> <1004999653 DOT 4685 DOT 20 DOT camel AT lifelesswks> <3BE71DF4 DOT 20802 AT ece DOT gatech DOT edu>

Okay, I put my money where my mouth is.  See

http://www.neuro.gatech.edu/users/cwilson/cygutils/packaging/

I've implemented two slightly different src packaging schemes: the one I've 
been advocating, and a slightly modified version of the scheme Robert likes.

------------------------------------------------------
STYLE 1 (Chuck):
-src archive contains an inner "pristine" tarball in cygwin/SOURCES/ along 
with a patch in the same directory.  Since setup will automagically unpack 
-src archives into /usr/src, that means we have "/usr/src/cygwin/SOURCES/". 
  Also, the -src archive contains a build script in cygwin/SPECS/.

So, -src contains 3 files, total.

------------------------------------------------------
STYLE 2 (Robert):

Since Corinna suggested that any scheme uses the RPM-ish directories, I've 
adapted Robert's debian-like scheme to fit that structure (basically, just 
put the src tarball and the patch in cygwin/SOURCES, but the README 
instructs to unpack, patch, and build under cygwin/BUILD rather than *right 
there* like debian does).

When you unpack the inner (pristine) archive and apply the patch, you get a 
"rules" file (shell script, not makefile, in this example) in 
CYGWIN-PATCHES.  I'm pretending that <srctop>/CYGWIN-PATCHES/ is like 
debian's <srctop>/debian/.

-src contains 2 files, total.
-------------------------------------------------------

These differences don't sound like much, but when you get down to it, it's 
actually pretty profound.  Since we don't (yet) have an outside tool to 
handle unpacking the inner archive and applying the patch, Robert's scheme 
is unwieldy IMO.  This leads to lots of little differences in how you 
rebuild the -src archive, naming (and dir structure) of the "pristine" 
inner archive, etc.

Until we actually HAVE a dpkg tool (or unless we change setup.exe to do 
more than just unpack into /usr/src) I like style 1 better.

Anyway, go to the URL, download, check it out.  I'm going to bed.

--Chuck

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