From mboxrd@z Thu Jan  1 00:00:00 1970
From: Mike Haertel <mike@ducky.net>
Message-Id: <200110150830.f9F8UJa82006@ducky.net>
To: 9fans@cse.psu.edu
Subject: Re: Plan 9 annoyances (was: Re: [9fans] mv vs cp)
In-Reply-To: <3BCA8652.F2CC96B7@strakt.com>
Date: Mon, 15 Oct 2001 01:30:19 -0700
Topicbox-Message-UUID: 08add52e-eaca-11e9-9e20-41e7f4b1d025

>Mike Haertel wrote:
>> i see no real reason for "mk nuke" to exist.  "mk clean" *almost* removes
>> every intermediate file; why not just fix it to get them all, and then
>> get rid of "mk nuke" entirely?
>
>No, 'nuke' and 'clean' serve two different purposes.  Both are aptly named.

Ok, here's an exercise for the reader...

After a full build of libraries and commands for the 386 target,
of all the thousands of files generated during the build, only
the following 17 files are *not* removed by "mk clean":

	/sys/src/ape/cmd/make/gram.c
	/sys/src/cmd/cc/cc.a8
	/sys/src/cmd/eqn/eqn.c
	/sys/src/cmd/9nfs/lib/lib.a8
	/sys/src/cmd/map/libmap/libmap.a8
	/sys/src/cmd/postscript/common/com.a8
	/sys/src/cmd/spell/amspell
	/sys/src/cmd/spell/brspell
	/sys/src/cmd/plot/libplot.a8
	/sys/src/cmd/cvs/lib/libcvs.a8
	/sys/src/cmd/cvs/zlib/libzlib.a8
	/sys/src/cmd/cvs/diff/libdiff.a8
	/sys/src/cmd/tex/tpic/picy.c
	/sys/src/cmd/tex/kpathsea/libkpathsea.a8
	/sys/src/cmd/tex/web2c/lib/lib.a8
	/sys/src/libthread/syms.386
	/sys/src/libscribble/syms

And here is the list of files left after a further "mk nuke":

	/sys/src/cmd/eqn/eqn.c
	/sys/src/cmd/map/libmap/libmap.a8
	/sys/src/cmd/cvs/lib/libcvs.a8
	/sys/src/cmd/cvs/zlib/libzlib.a8
	/sys/src/cmd/cvs/diff/libdiff.a8
	/sys/src/cmd/tex/tpic/picy.c
	/sys/src/cmd/tex/kpathsea/libkpathsea.a8
	/sys/src/cmd/tex/web2c/lib/lib.a8
	/sys/src/libthread/syms.386
	/sys/src/libscribble/syms

In other words, the difference between "mk clean" and "mk nuke" is
just 7 files in all of /sys/src.  (In addition, "mk nuke" does some
collateral damage outside /sys/src.)

So, please explain "different purposes" served by "mk clean" and "mk nuke".