Reflecting Heroku push version within the app

Question

Every time I push my app to heroku I see the line

-----> Launching... done, v43

Is there a way to make that version number apear within the

Answer 1

After every push, run (assuming a bash shell):

heroku config:add rel=$(heroku releases | tail -2 | awk '{print $1}')

You can then just access the rel environment variable from your app.

Alternatively, if you'd like to present the date of the push, which, IMO, represents more meaningful information:

heroku config:add rel=$(heroku releases | tail -2 | awk '{print $5,$6,$7}')

Or, my favorite, which contains date and version with no whitespace:

heroku config:add rel=$(heroku releases | tail -2 | awk '{print $5"t"$6$7"."$1}')