How to iterate over a directory of files in vimscript?

Question

I have a directory ~/.vim/rc.d/ that houses various configuration files. I like this pattern for configuring various things in my homedir because it modularizes configuration options.

The problem is that my vimrc is now a series of commands to source hard-coded paths to other .vim files.

source ~/.vim/rc.d/00-plugins.vim
source ~/.vim/rc.d/01-plugins-settings.vim
source ~/.vim/rc.d/02-interface-colorscheme.vim
source ~/.vim/rc.d/02-interface-listchars.vim

Etc.

How can I rewrite this to source all the files in that directory that end in .vim?

Answer 1

You can put all your files to ~/.vim/plugin/ directory and they would be sourced by vim automatically.

Basically vim does :runtime all vim files from that directory.

If you still want to do it by hand you can :runtime! ~/.vim/rc.d/**/*.vim

You can also use glob() function to get all your vim filenames and source them in a for loop.

Answer 2

The doc :h :runtime says:

:ru[ntime][!] [where] {file} ..
            Read Ex commands from {file} in each directory given
            by 'runtimepath' and/or 'packpath'.  There is no error
            for non-existing files.
            [...]
            When [!] is included, all found files are sourced.
            [...]
            When {file} contains wildcards it is expanded to all
            matching files.  Example: >
                :runtime! plugin/*.vim

So you should be able to use runtime! ~/.vim/rc.d/*