merge tags and gems.tags to TAGS for emacs

[antono]

to avoid extra configs for emacs

[antono]

@diasjorge yep. i saw this part and i just do not want to call visit-tags-table twice for project and gem tags. Nice catch about run_on_change. Fix added.

[ivalkeen]

I'm using VIM and I don't want to merge these 2 files because of sorting. Vim by default uses binary search for tags, which is very fast, but requires tags file(s) to be sorted. When you merge them into one, they become unsorted and binary search doesn't work. I'm sure that searching for tags in 2 sorted tagfiles is much faster than searching in one unsorted. Besides, tag files contain header, which is duplicated when merging and becomes incorrent (because it says that file is sorted). But I don't know how emacs work with tags. If you guys sure, thay it is not the case for emacs, I will merge it.

[diasjorge]

In my opinion this doesn't need to be merged, there are some alternatives to this.

http://www.emacswiki.org/emacs/EtagsSelect http://www.emacswiki.org/emacs/EtagsTable

I haven't had anytime to make a configuration for emacs...although you can just use visit-tags-table function

[antono]

@diasjorge , @ivalkeen i've added this merge in order to avoid manual emacs tweaking. its up to you. i'll keep it in my fork anyway :)

[svperfecta]

+1 - For emacs is much easier to have a single file generated.

[ivalkeen]

Any ideas about how it should be done?

[antono]

@ivalkeen proposed patch works for me as expected. Without this patch i have to visit both files first time when i need my tags.

[ivalkeen]

Yes, but resulting file is incorrect (unsorted and with 2 headers). Получается же что у него 2 шапки, причем одна в середине, плюс в шапке написано что он сортированный, а на самом деле он получается не сортированный, поэтому поиск может косячить или как минимум просто медленнее работать. Я думал над решением вырезать одну шапку вручную и через sort прогнать, тогда файл валидный будет, но теряется приоритет локальных тегов над гемовскими (что мне очень нравится в решении с 2-мя файлами). Есть мысли?

[diasjorge]

@antono maybe you could make it an extra option to merge the files? I don't know what can be expected from having the incorrect headers, you say it works for you so I guess it's not a problem.

[svperfecta]

+1 For emacs, having them merged is much simpler. Actually, I'd vote for creating individual files and merging them. There's less overhead during the regeneration.

On Tue, Jun 19, 2012 at 6:18 AM, Jorge Dias reply@reply.github.com wrote:

@antono maybe you could make it an extra option to merge the files? I don't know what can be expected from having the incorrect headers, you say it works for you so I guess it's not a problem.

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Reply to this email directly or view it on GitHub: https://github.com/ivalkeen/guard-ctags-bundler/pull/4#issuecomment-6421297

[ivalkeen]

Ok, it seems that in emacs mode, there is no meta-information header in tags files, so it seems that it is OK to merge them. Thanks.

[antono]

Cool. Thanks :)