[Hatch Deployment] - Cannot bundle commonmarker due to cmake

Im using commonmarker for the HTML::Pipeline::MarkdownFilter. And when trying to deploy my app, I get this exception:

Gem::Ext::BuildError: ERROR: Failed to build gem native extension.

current directory:
/home/deploy/lauroio/shared/bundle/ruby/2.4.0/gems/commonmarker-0.16.7/ext/commonmarker
/home/deploy/.rbenv/versions/2.4.1/bin/ruby -r
./siteconf20170721-22951-szfhyg.rb extconf.rb
checking for cmake... no



[ERROR]: cmake is required and not installed. Get it here: http://www.cmake.org/


*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of necessary
libraries and/or headers.  Check the mkmf.log file for more details.  You may
need configuration options.

Provided configuration options:
    --with-opt-dir
    --without-opt-dir
    --with-opt-include
    --without-opt-include=${opt-dir}/include
    --with-opt-lib
    --without-opt-lib=${opt-dir}/lib
    --with-make-prog
    --without-make-prog
    --srcdir=.
    --curdir
    --ruby=/home/deploy/.rbenv/versions/2.4.1/bin/$(RUBY_BASE_NAME)

How can I instal cmake?

It's as easy as SSHing into your server and running sudo apt-get install cmake.

If you're interested in trying out a new feature, I added Scripts at the top of the page and you can create little bash scripts to install things like cmake. You can create a new Recipe and paste that line into that and tell it to run on your server (as root, not deploy) and it'll install it for ya.

Thanks Chris. Worked perfectly!

I forgot that Hatch sends an email with the deploy user's sudo password.