Autocomplete goodies

[pacak]

• Expand file name before trying to execute, Fixes Completions broken in zsh if completing with a path containing ~ or an environment variable #315
• (Should completion descriptions with backtick should be escaped better? #336)
• (Consider silent failure rather than panicking in complete_gen.rs #305)
• (Tab completion in zsh broken in 0.9.5? #303)

[ysndr]

Hej,

Is this likely to fix issues like we see here [1]?
I.e. parsing errors "leaking" out of the completer and blocking you from doing anything except ^C and start over again?

Note in this particular case we have a -f and a -d <arg> flag both being short aliases.
I understand that -fd is not a correct argument, but in this case i'd expect arguments to -d to be completed here instead. suggesto -f=d in this case is just incorrect i'd say.

[1] flox/flox#1657

Edit: It does seem to ignore these errors now, so that's a start, but this is apparently still in progress considering the debug output it produces.

[pacak]

I understand that -fd is not a correct argument, but in this case i'd expect arguments to -d to be completed here instead.

Even if I could start completing arguments for -d here - it won't work once you press enter and try to run the whole thing. The goal is to either move to completing the next item -fd<TAB> -> -fd _ or to break them down into separate items: -fd<TAB> -> -f -d _.

zsh with its default completion scripts support doing something smart with adjacent single letter flags, bash does not.

So yeah, I'm planning to fix this problem, but I'm not sure yet what the best solution is. Dealing with a newborn is not helping :)

[ysndr]

Well, congratulations :)

I'm fine with it not completing if the result wouldn't be valid anyway..
Mainly hoping to get this to work without it messing up the terminal at least ^^

Is this PR the right place to start if i were to look at it myself?

[pacak]

Well, congratulations :)

❤️

Mainly hoping to get this to work without it messing up the terminal at least ^^

Should be here, but it's a mess... Might be easier to try to address that issue directly, gimme a sec.