[Pkg-javascript-devel] Bug#711810: npm: bash completion script clobbers $COMP_WORDBREAKS

[Jonathan Nieder]

Package: npm
Version: 1.1.4~dfsg-2
Severity: important
Tags: upstream

While investigating another bug related to $COMP_WORDBREAKS, I noticed
the following:

	$ echo $COMP_WORDBREAKS
	"'@><=;|&(:
	$ . /etc/bash_completion
	$ echo $COMP_WORDBREAKS
	"'><;|&(:

That's due to the following code from /etc/bash_completion.d/npm:

	COMP_WORDBREAKS=${COMP_WORDBREAKS/=/}
	COMP_WORDBREAKS=${COMP_WORDBREAKS/@/}
	export COMP_WORDBREAKS

I assume the intent is to change how wordbreaking works in the npm
completion script (so that e.g. "npm ls =isaa" can complete to "npm ls
=isaacs").  See the definition of "__get_comp_words_by_ref -n @=" in
/etc/bash_completion for a better way to do that, which doesn't
clobber state used by other completion scripts.

Thanks and hope that helps,
Jonathan