Add fish completion

[xfgusta]

Here are some things I couldn't figure out how to implement:

!
(
)
,
-newerXY REFERENCE

I also don't know if I should add a completion for -noleaf.

The completion is installed in the /usr/share/fish/vendor_completions.d directory.

See #32.

[tavianator]

Here are some things I couldn't figure out how to implement:

!
(
)
,

These aren't too important, since they're one character tab completion doesn't help much :)

-newerXY REFERENCE

These are handled by expanding out the full set of possibilities for bash and zsh. Maybe fish can do something similar?

bfs/completions/bfs.bash

Line 78 in 33293e3

-newer{a,B,c,m}{a,B,c,m}

bfs/completions/bfs.zsh

Line 102 in 33293e3

'*-newer'{a,B,c,m}{a,B,c,m}'[find files where timestamp 1 is newer than timestamp 2 of reference FILE]:reference file:_files'

I also don't know if I should add a completion for -noleaf.

The bash and zsh ones have it, so fish might as well too.

[xfgusta]

These are handled by expanding out the full set of possibilities for bash and zsh. Maybe fish can do something similar?

I managed to do this using the following code:

# handle -newer{a,B,c,m}{a,B,c,m} FILE
for x in {a,B,c,m}
    for y in {a,B,c,m}
        complete -c bfs -o newer$x$y -d "Find files whose $x""time is newer than the $y""time of specified file" -F
    end
end

# handle -newer{a,B,c,m}t TIMESTAMP
for x in {a,B,c,m}
    complete -c bfs -o newer$x"t" -d "Find files whose $x""time is newer than specified timestamp" -x
end

It generates these completions (except the first one):

Does it look right?

The bash and zsh ones have it, so fish might as well too.

Added.

[tavianator]

Looks right to me. $x""time looks weird but I guess it's right, since fish doesn't support ${x}time.

[xfgusta]

$x""time looks weird but I guess it's right, since fish doesn't support ${x}time.

Unfortunately I couldn't come up with a better solution. Maybe something like this:

string join '' "Find files whose " $x "time is newer than the " $y "time of specified file"

[tavianator]

I think $x""time is better than that, might as well keep it

[tavianator]

Looks good! I tried it out locally and it works. Just have the one question about -ls.