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Generating a reasonable ctags database for Boost

Answer 1

+2 A:

use the option

--sort=foldcase

With this the searching of the tags becomes faster.

Quoting from the man page of ctags : "The foldcase value specifies case insensitive (or case-folded) sorting. Fast binary searches of tag files sorted with case-folding will require special support from tools using tag files, such as that found in the ctags readtags library, or Vim version 6.2 or higher (using "set ignorecase"). This option must appear before the first file name"

Vicky 2010-05-13 13:04:23

Will this reduce the size of the tags file to reasonable dimensions? I mean, stdlibc++ includes the STL and TR1 which actually has allot of Boost in it - and it's only 4MB!

Robert S. Barnes 2010-05-13 16:38:53

I am not sure about the size, but my tag search speed in VIM was increased atleast 5 fold..

Vicky 2010-05-14 10:26:24

No. Including the sort option gives me no gain in Ubuntu 10.04. Still getting the 1.4G file size

ancechu 2010-07-07 10:13:08

Answer 2

+2 A:

I know this post is a little old, but I just ran into the same problem. I looked into it a little further and it seems it is one folder in boost that is causing the problem: typeof. I am using boost 1.37 and my tags file was 1.5G, typeof was 1.4G of that. So I just created a tags file without that directory included and the resulting size was 70M. I was even able to sort it without running out of space :) I imagine in newer versions of boost they may be other projects that are too large however the general solution I found is this...

Generate a tag file for each boost folder seperately, a simple bash for loop should be able to do this.
Look at which ones are too large.
Either create a new single tags file excluding those large directories or keep the tag files separated simply deleting the ones that are too large.

Hope this helps...

Neg_EV 2010-10-07 15:03:41

I don't suppose you could post the script?

Robert S. Barnes 2010-10-08 12:40:11

This should generate separate tag files to find the culprit:for i in $(find -maxdepth 1 -type d | grep -v '^\.$' | sed 's/\.\///' ); do echo $i; ctags -f ~/tmp_tags/$i.tags -R --c++-kinds=+p --fields=+iaS --extra=+q --languages=c++ --sort=foldcase $i; doneThen to generate a single tags file you can simply do something similar to:ctags -f ~/tmp_tags/all.tags -R --c++-kinds=+p --fields=+iaS --extra=+q --languages=c++ --sort=foldcase $(ls -d * | grep -v typeof );The grep -v part is where I exclude things such as typeof. Both commands assume you are in the boost include dir.

Neg_EV 2010-10-08 15:53:19

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Generating a reasonable ctags database for Boost

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