* Completion for command-not-found "commands"
@ 2012-07-24 4:08 Benjamin R. Haskell
2012-07-24 15:49 ` Bart Schaefer
0 siblings, 1 reply; 2+ messages in thread
From: Benjamin R. Haskell @ 2012-07-24 4:08 UTC (permalink / raw)
To: Zsh Users
The very-short version of my question is: How can I dynamically get
completion for `git rm` when what I've typed on the commandline so far
is `grm`? ("dynamically" meaning without defining a bunch of compdef's
up front.)
Longer version:
A colleague of mine finally convinced me that using his 'g___' aliases
for git commands was superior to using my 'g ___' versions. E.g.:
==> in his ~/.bashrc <==
alias gst='git status'
alias gco='git checkout'
========================
==> vs. my ~/.gitconfig <==
[alias]
st = status
co = checkout
==> and my ~/.zshrc <==
alias g=git
=======================
However, I'm still convinced that I'd rather keep mine as git
[alias]'es, rather than shell aliases (When getting slightly complex,
git [alias]es can be shell functions). So, I wrote the following:
valid_git_alias () {
git config -l | grep -qF "alias.$1="
}
valid_git_command () {
# my `awk` is better than my `zsh` for this kind of string manipulation:
git help --all | awk '/---/ { ok=1 ; OFS="\n" ; ORS="" } /^ / { NF=NF+1 ; if (ok) print $0 }' | grep -qF $1
}
command_not_found_handler () {
[[ $1 = g* ]] || return 1
local al=${1#g}
shift
valid_git_alias $al || valid_git_command $al || return 1
git $al "$@"
return 0
}
This lets me do:
`gst` -- gets converted to `git st` (which is one of my git [alias]es)
`grm` -- gets converted to `git rm` (which is a built-in git command)
The problem is that I've lost shell-completion (which I had with the `g
___` version). E.g. `g checkout <Tab>` would complete branches and
tags. And, with:
_git-co () { _git-checkout "$@" }
`g co <Tab>` would behave the same.
--
Best,
Ben
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Completion for command-not-found "commands"
2012-07-24 4:08 Completion for command-not-found "commands" Benjamin R. Haskell
@ 2012-07-24 15:49 ` Bart Schaefer
0 siblings, 0 replies; 2+ messages in thread
From: Bart Schaefer @ 2012-07-24 15:49 UTC (permalink / raw)
To: Zsh Users
On Jul 24, 12:08am, Benjamin R. Haskell wrote:
}
} The very-short version of my question is: How can I dynamically get
} completion for `git rm` when what I've typed on the commandline so far
} is `grm`? ("dynamically" meaning without defining a bunch of compdef's
} up front.)
You probably want to write a completer function to insert into your
"completers" style. This is a crude version but mostly works:
_check_for_git_alias () {
[[ $words[1] = g* ]] || return 1
local al=${words[1]#g}
if valid_git_alias $al || valid_git_command $al
then
words[1]=(git $al)
((++CURRENT))
_normal
else
return 1
fi
}
zstyle ':completion:*' completer _check_for_git_alias \
whatever you already had for this style goes here
Obviously there are a bunch more tests you can do to figure out whether
it's even reasonable to treat $words[1] as a git alias or command, and
you may want to try this in some other ordering of the zstyle rather
than right at the beginning, but hopefully this gets you started.
--
Barton E. Schaefer
^ permalink raw reply [flat|nested] 2+ messages in thread
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2012-07-24 4:08 Completion for command-not-found "commands" Benjamin R. Haskell
2012-07-24 15:49 ` Bart Schaefer
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