How do I automatically generate a tags file with ripper-tags for ruby?

Question

How do I get ripper-tags to automatically generate a tags file for my ruby buffers upon save?

Answer 1

Disclaimer: I don't have ripper-tags installed, this is my best guess on browsing the documentation.

In the documentation it says that the typical usage is:

ripper-tags -R --exclude=vendor

This parses all *.rb files in the current project, excluding ones in vendor/ directory, and saves tags in Vim format to a file named ./tags.

Using this with an autocmd on save I would get something like the following:

autocmd BufWritePost *.rb !ripper-tags -R --exclude=vendor

• autocmd BufWritePost Sets up an auto command to do something everytime we write to a file
• *.rb Only execute on ruby files (.rb extension)
• !... Executes following command in a shell

Put this line in your vimrc file to enable the auto command.

See :h BufWritePost and :h ! for more info.