Re: move point to first error, without opening target buffer

[Sam Halliday]

On Thursday, 24 December 2015 23:15:33 UTC, Sam Halliday  wrote:
> Dear Emacs users,
> 
> I am using a package called `ag' as a faster replacement for grep 
> (silversearcher), installing the emacs package like so:
> 
>     (use-package ag
>       :commands ag
>       :config
>       (add-hook 'ag-search-finished-hook 'next-error-no-select))
> 
> for all intents and purposes, this could be any subprocess that uses the 
> `compile' support and search results are shown as "errors".
> 
> Ag has a hook (see above) which runs when the search is complete. What I'm 
> trying to do is to make the point jump to the first search result, so that I 
> don't have to manually `C-x o' and then `C-s' to the hits (sometimes the 
> preamble can be quite long).
> 
> What I have above is nearly there, but it opens the first search result in a 
> buffer and I don't want that. I just want the point to move to the first hit 
> so I can manually select which ones I care about. Reading through `simple.el' 
> I'm pretty confused about how I can achieve that, could somebody please help?
> 
> In addition, it would be far better if the hook was run when the first search 
> result (or "error") was detected. There doesn't appear to be a hook point for 
> this, but maybe I'm wrong.


Thanks to Sasha on #emacs for pointing me at compilation-next-error, used like 
this in the hook, it works a treat!

  (defun next-match-jump ()
    "Jump the point and user's focus to first match in a `compile'."
    (pop-to-buffer next-error-last-buffer)
    (compilation-next-error 1))