The Vim shfmt plugin runs shfmt to auto format the current buffer by a command :Shfmt. If instead you prefer to format a textobject, say a paragraph, by gq, then add to the file after/ftplugin/sh.vim in your Vim configuration folder the lines
if executable('shfmt')
let &l:formatprg='shfmt -i ' . &l:shiftwidth . ' -ln posix -sr -ci -s'
endif
and press, say gqip. Customize the options -ln posix -sr -ci -s to your liking.
You just need the shfmt command
Obtain a copy of this plugin and place shfmt.vim in your Vim plugin directory or be sensible and use something like Plug:
Plug 'z0mbix/vim-shfmt', { 'for': 'sh' }
You can use the :Shfmt command to run shfmt and automatically format the current buffer
You can also use the :Shfmt command together with options. For example,
shfmt uses tabs by default for auto formatting, so if you prefer to use 2 spaces, you can set the following in your .vimrc file:
let g:shfmt_extra_args = '-i 2'
If you would like to auto format shell scripts on save, you can add the following to your vim config:
let g:shfmt_fmt_on_save = 1
The Vim shfmt plugin is open-sourced software licensed under the MIT license.
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