vim cannot connect to cscope database

Question

I have opensuse 11.4 installed. Vim is version 7. Now I normally use it to browse the linux kernel source. So I generated the cscope database inside a directory within my home folder i.e. /home/aijazbaig1/cscope_DB/ and I got 3 files viz. cscope.out, cscope.po.out and cscope.in.out besides the cscope.files file which contains a list of all the relevant files which I want to search.

Additionally I have added the following to my .bashrc:

CSCOPE_DB=/home/aijazbaig1/cscope_DB/cscope.out
export CSCOPE_DB

But when I do a :cscope show from within vim it says there are no connections. Can anyone please let me know what is going wrong.

Keen to hear from you,

Answer 1

This is mentioned in the comments above, but I want to make sure it's preserved in an answer.

The issue that came up for me was that vim didn't know where to look for the cscope database. When I added

cs add $CSCOPE_DB

to my .vimrc. Everything came out fine.

Answer 2

I figure since I've made the visit, I would try responding.

I was getting this error when searching using ctrl-space s (or any search for that matter):

E567: no cscope connections

I finally found the full solution at http://cscope.sourceforge.net/cscope_vim_tutorial.html, Step 11.

The idea is that you create a list of source files to be included in the view of cscope, generate the cscope.out in the same location, and update the export path accordingly:

• find /my/project/dir -name '*.c' -o -name '*.h' > /foo/cscope.files
• cscope -R -b (this may take a while depending on the size of your source)
• export CSCOPE_DB=/foo/cscope.out (put this in your .bashrc/.zshrc/other-starting-script if you don't want to repeat this every time you log into the terminal)