Bundler 2.1.x and greater caching issues

Build Environment Caching Dependencies
1

Hi,
Switched recently to the last version of bundler (2.2.2) and it has broke the caching system of our projects using has key the Gemfile.lock.
We are using the advised {{ checksum Gemfile.lock }} to generate our cache key but since the last version of bundler is adding a platforms info after an update. The generated cache key is different from the one that will be retrieve because the file has changed.

Is there a way to use the commit hash of the file or an other solution to solve this issue?

3

One trick with the checksum command is that you can create a temporary file with the caching data and then checksum that.

Depending on the contents on the Gemfile.lock, you should be able to filter out any data and then create a new file to checksum.

For example:

grep -vF 'PLATFORMS' > /tmp/gems.lock

Then you can use that for a checksum:

{{ checksum /tmp/gems.lock }}

If you had an example Gemfile.lock we can come up with something a bit robust for the platform data added.