[tex-k] fmtutil --noformaterror

[Norbert Preining]

Dear all, Akira, Karl

following a discussion on the TeX Live mailing list I have made some
simple changes to fmtutil to not abort on some occasions, but 
just do normal cleanup and exit normally.

The command line option is
	--noformaterror

The conditions under which fmtutil before did abort (exit 1) and now
does normal cleanup are:

fmtutil --byhyphen ....
	no format depends on hyphen file ....

fmtutil --byengine ...
	no format depends on engine ....


That is somehow in line with
	$ fmtutil --byfmt foobar_not_defined_format
	$ echo $?
	0
	$

In the above cases now we get someting like:
	$ fmtutil-sys --noformaterror --byengine ptex
	fmtutil: no format depends on engine `ptex'.
	$ echo $?
	0
	$
etc.

I attach a diff to fmtutil tahat accomplishes that for review.


@Akira: I checked the sources of fmtutil.c and found that *AFAIS* 
you only five a warning on stderr, but do not exit with non-zero
exit code.

If that is right, please advise on the following two options:
1- add support for that cmd line options (doing nothing), patch:

--- fmtutil.c	2010-03-10 21:09:12.000000000 +0900
+++ fmtutil.c.new	2010-07-01 13:26:28.000000000 +0900
@@ -561,6 +561,9 @@
       usage();
       return 0;
     }
+    else if(!strncmp(av[i],"--nof", 5) || !strncmp(av[i], "-nof", 4)) {
+      /* do nothing, only for compatibility with shell fmtutil for unix */
+    }
     else {
       fprintf(stderr, "%s: Invalid argument.\n\n", av[0]);
       usage();

2- or I add a special case for W32 in tlmgr calling

Of course I would prefer the former one, also to keep fmtutil in w32
and unix in sync, but I can also do the second.
I didn't add any help option for that, as it does nothing.

@Karl and the others: Is it fine to commit that to the texlive repository?

Best wishes

Norbert
------------------------------------------------------------------------
Norbert Preining            preining@{jaist.ac.jp, logic.at, debian.org}
JAIST, Japan                                 TeX Live & Debian Developer
DSA: 0x09C5B094   fp: 14DF 2E6C 0307 BE6D AD76  A9C0 D2BF 4AA3 09C5 B094
------------------------------------------------------------------------
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