Not rebuilding dependencies?

[noam87]

Hi, so I'm using the ja_serializer gem which requires to be rebuilt after a setting is changed, via mix deps.clean ja_serializer && mix deps.get (https://github.com/AgilionApps/ja_serializer#attribute-relationship-and-query-param-key-format).

Now this does not seem to be working in heroku, So next I tried passing the always_rebuild=true flag to buildpack, but again this did not work (and from the heroku log at least, I can't see that dependencies are being rebuilt).

My fix for this has been to set dependency one version lower, then upgrade again, which will recompile it as expected.

[noam87]

I'm not too familiar, but perhaps at

heroku-buildpack-elixir/lib/app_funcs.sh

Line 47 in f08c5ed

mix deps.get --only $MIX_ENV || exit 1

this would work?:

if [ $always_rebuild = true ]; then
  mix deps.clean --all && mix deps.get --only $MIX_ENV || exit 1
else
  deps.get --only $MIX_ENV || exit 1
fi

Or maybe a separate option for recompiling assets. If so, I can create a PR.

[HashNuke]

@noam87 We have support for a pre-compile hook and a post-compile hook. Can you see if these can be used? (examples in the readme)

[ericmj]

always_rebuild=true should work, if it doesn't it's a bug. always_rebuild cleans the cache here

heroku-buildpack-elixir/lib/misc_funcs.sh

Line 85 in 2e1a09b

function clean_cache() {

.

[HashNuke]

Closing since no activity since a solution was recommended.