Re: how to debug file type recognition

[tooth pik]

On Tue, May 21, 2013 at 03:52:03AM -0700, Matteo Cavalleri wrote:
> i have two identical smarty files: i load the first one and it gets
> recognized as "heist". i load the second one and it gets correclty
> recognized as smarty... how can that happen?

> if i start vim with "vim -u NONE -U NONE" and give the commands
> ":set nocompatible" and ":syntax on", the files are all recognized
> as smarty, so the problem should either be in my .vimrc or some
> plugin, but i have no idea where to look for to fix this problem.

the first thing I'd try would be

:verbose set ft?

in the first "heist" buffer

[Ben Fritz]

On Tuesday, May 21, 2013 5:52:03 AM UTC-5, Matteo Cavalleri wrote:
> i have two identical smarty files:

Content is identical? Or file name/extension? Or both?

[Christian Brabandt]

On Tue, May 21, 2013 12:52, Matteo Cavalleri wrote:
> i have two identical smarty files: i load the first one and it gets
> recognized as "heist". i load the second one and it gets correclty
> recognized as smarty... how can that happen?
>
> if i start vim with "vim -u NONE -U NONE" and give the commands ":set
> nocompatible" and ":syntax on", the files are all recognized as smarty, so
> the problem should either be in my .vimrc or some plugin, but i have no
> idea where to look for to fix this problem.
>

> thanks in advance.

My guess is, this is caused by some kind of plugins, cause
the standard distributed filetype.vim file doesn't know about
the filetype "heist".

So check your plugins.

regards,
Christian

[Matteo Cavalleri]

> > i have two identical smarty files:
>
> Content is identical? Or file name/extension? Or both?

they are identical in content and extension. name is obviously different. i just did another test with these steps:

touch foo1.tpl
vim foo1.tpl -> put some smarty/html tags and quit
cp foo1.tpl foo2.tpl
vim foo1.tpl -> recognized as heist
:e foo2.tpl -> recognized as smarty

after loading foo1.tpl, "verbose set ft?" gives:

filetype=heist
Last set from ~/.vim/bundle/vim2hs/ftdetect/heist.vim

after loading foo2.tpl

filetype=smarty
Last set from ~/.vim/ftplugin/smarty.vim

so the culprit is known, but the question is why? why the first file gets recognized one way and the second another way?

[Matteo Cavalleri]

> so the culprit is known, but the question is why? why the first file gets recognized one way and the second another way?

the content of ~/.vim/bundle/vim2hs/ftdetect/heist.vim is just:

autocmd BufNewFile,BufRead *.tpl setlocal filetype=heist

the content of ~/.vim/ftplugin/smarty.vim is:

au BufRead,BufNewFile *.tpl set filetype=smarty

(plus some other code fir match it)

[Matteo Cavalleri]

ok, i finally found this in the documentation: "When the same extension is used for two filetypes, Vim tries to guess what kind of file it is. This doesn't always work." and "The files in the "ftdetect" directory are used after all the default checks, thus they can overrule a previously detected file type"

so i suppose i should have done my homework a little bit harder. sorry for this, i'll try not to spam this group any longer :) thanks for your help

[Ben Fritz]

Files in the ftplugin directory should not be setting the filetype. That may be the culprit of your multiple loads as well. ftplugin/smarty.vim should only be running when you do "set ft=smarty" so setting it again is unnecessary at best.

[Matteo Cavalleri]

> Files in the ftplugin directory should not be setting the filetype. That may be the culprit of your multiple loads as well. ftplugin/smarty.vim should only be running when you do "set ft=smarty" so setting it again is unnecessary at best.

looking back at my dotfiles git log i found that to be my first attempt to fix this issue, and that clearly shows that i didn't understand at all vim plugins/filetypes ^__^ at least i should have learned something new.

btw, after some tries i was able to fix the problem by removing that line from ftplugin/ and putting it inside ~/.vim/after/ftdetect/smarty.vim, ~/.vim/ftdetect/ wasn't enough to get my settings win over the other plugin ftdetect

regarding my multiple loads i won't be at office till next monday, so i'll be unable to test this. i can try to replicate the issue here at home on my mac though. supposing os / system performance don't matter, i should be able to get the same result i have on my linux box

thanks again for the help