Message-ID: <4176F429.3070209@johnmeinel.com>
Date: Wed, 20 Oct 2004 18:26:33 -0500
From: John Meinel <tla@johnmeinel.com>
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To: Zenaan Harkness <zen@cashpoolcomps.com>
Subject: Re: [Gnu-arch-users] Re: File naming conventions
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Cc: GNU Arch Users <gnu-arch-users@gnu.org>
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Zenaan Harkness wrote:
>>>% tla inventory -s | ctags -L -
>>>
>>>Not as pretty as 'ctags -R *', but still pretty short, and much saner.
>>>No pristines, no precious files, no backup files, no junk files.
>>>Spaces in filenames work.  No \0's, no xargs limit issues.  You can
>>>even slap a --nested in there if you like.
>>
>>Except that does not work for even slightly "unusual" file names, like
>>the ones which make the -0 option to find and xargs useful, because of
>>pika escaping.
> 
> 
> Which is therefore a bug in tla inventory: missing -0 option.
> 
> (I haven't filed a bug before, but I don't imagine it's
> overly difficult.)
> 

Actually, I think what ddaa is mentioning is even more serious. For 
filenames with "bad" characters in them, tla inventory outputs the pika 
escaped version, not the real version. As an example:

$ cd project-tree
$ echo "# arch-tag: `uuidgen`" > "test file.txt"
$ tla inventory --source
...
test\(sp)file.txt
...

That doesn't work for *anyone* whether we had a -0 flag or not.

Maybe we could have '-0' mean, use null termination, and don't pika escape.

I'm not very happy that tla inventory, or tla changes, etc all show the 
pika escaped version of the files, it really messes with toolchains. So 
far, though, that is the decision from on high. (It probably makes 
things work better internal to tla, but that doesn't help external things)

There is the command tla escape (and tla escape --unescaped). But they 
only read a single command line argument. So you can't do:

tla inventory --source | tla escape --unescaped | xargs chmod 644
and you can't do
tla inventory --source | xargs tla escape --unescaped | xargs chmod 644

And you can't even do:
tla inventory --source | xargs -n1 tla escape --unescaped \
	| xargs chmod 644

Because xargs strips off the whitespace. I haven't found anything that 
works outside of building a complete bash script.

John
=:->


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