You can add additional buildpacks to your Heroku application with the
$ heroku buildpacks:add https://github.com/MattFenelon/heroku-buildpack-ruby-poppler --index 1
The index is set to 1 to install the poppler library before it is needed by another buildpack, i.e. when bundler runs as part of the ruby buildpack.
The buildpack installs Poppler 0.52.0
0.52.0 is the last released version to work with the latest version of the poppler gem 3.0.8.
The first-run of this buildpack will compile the poppler library. The compilation of the poppler library can take some time. Subsequent builds use a cached version of the compiled library, vastly decreasing the amount of time to install the buildpack.
When the cache can't be used, the poppler library will need to be compiled again. This could happen when the poppler version has changed, or there have been enough changes to this buildpack that old cached versions can't be used.
Poppler is installed on the dynos to
/app/vendor/poppler. The installation
path is appended to the environment variable
LD_LIBRARY_PATH, which is used
by other programs to find the shared library.
Copyright 2016 Matthew Fenelon
Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at
Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
Copy the snippet above into CLI.