On Sat, Dec 31, 2011 at 02:14:14PM +0100, xiscu wrote: > Package: bash-completion > Version: 1:1.3-1 > Severity: normal > > Dear Maintainer, > > * What led up to the situation? > - Pressing <tab> to auto complete a path that uses $HOME > > > * What exactly did you do (or not do) that was effective (or > ineffective)? > - Just try: dir $HOME/ and then press <tab> > > > * What was the outcome of this action? > - The command is changed to: dir \$HOME/ > (- If you then press <return> you will get the error: > dir: cannot access $HOME/: No such file or directory) > > * What outcome did you expect instead? > - The command should be changed with the true $HOME value
I can reproduce the problem.
$ bash --noprofile --norc
bash-5.0$ echo $HOME/.bashrc
/home/anarcat/.bashrc
bash-5.0$ . /usr/share/bash-completion/bash_completion
bash-5.0$ echo \$HOME/.bashrc
$HOME/.bashrc
bash-5.0$
I hit <TAB> after typing "$HOME/.bashr" in both cases, but after
bash_completion is loaded it breaks $HOME.
I've traced the problem down to this dynamic loader:
# set up dynamic completion loading
_completion_loader()
{
# $1=_EmptycmD_ already for empty cmds in bash 4.3, set to it for earlier
local cmd="${1:-_EmptycmD_}"
__load_completion "$cmd" && return 124
# Need to define *something*, otherwise there will be no completion at all.
complete -F _minimal -- "$cmd" && return 124
} &&
complete -D -F _completion_loader
If that code is removed, the problem doesn't occur. That's a complex
piece of code I have kind of gotten lost along the way. It seems the
escape character is inserted when this is called:
_quote_readline_by_ref '$HOME/.bashr' quoted
That's called somewhere below the _minimal callback defined above, which
is:
_minimal()
{
local cur prev words cword split
_init_completion -s || return
$split && return
_filedir
}
Things look fine there, so I'm tempted to think it's
_quote_readline_by_ref that's being too enthusiastic.
But I'm pretty lost here so i'll stop there.
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