Heroku et. al. buildpack that installs packages from a list of packages.
You probably want to compose this with other buildpack(s) using heroku-buildpack-multi (https://github.com/ddollar/heroku-buildpack-multi):
Set your buildpack:
heroku config:set BUILDPACK_URL=https://github.com/ddollar/heroku-buildpack-multi
And add this to your .buildpacks, i.e.:
https://github.com/benalavi/buildpack-packages
https://github.com/heroku/heroku-buildpack-ruby
Then add a file called .packages that is simply a list of packages you want
to "install" (really it just unzips them and sets the PATH).
https://s3.amazonaws.com/buildpack-s3cmd/s3cmd-1.0.1.tar.gz
https://s3.amazonaws.com/buildpack-exiftool/exiftool-9.40.tar.gz
https://s3.amazonaws.com/buildpack-zip/zip-3.0.tar.gz
The above would install s3cmd, exiftool, and zip from S3 sources.
The script is very simple: it just downloads and uncompresses the given
packages into /app/vendor and then adds /app/vendor/<package name>/bin to
PATH.
The packages are expected to be compressed in a specific way: they should
uncompress to a folder named the same as the filename, with a folder called
/bin under it which will be put on PATH. For instance:
tar xvf zip-3.0.tar.gz
./zip-3.0/
./zip-3.0/bin/
./zip-3.0/bin/zip
./zip-3.0/bin/zipsplit
./zip-3.0/bin/zipnote
./zip-3.0/bin/zipcloak
ruby test/buildpack_test.rb
There is also a Vagrantfile which will set up a VM with the build/test
environment ready to go:
vagrant up
vagrant ssh
cd /vagrant
ruby test/buildpack_test.rb