Support heroku config --json ONLY

README.md

@@ -192,7 +192,7 @@ It assumes a standard project layout (see the default value for the globs-option
 The easiest/quickest is to run:
 
 ```
-$ heroku config | bundle exec envied check:heroku
+$ heroku config --json | bundle exec envied check:heroku
 ```
 
 This is equivalent to having the heroku config as your local environment and running `envied check:heroku --groups default production`.

lib/envied/cli.rb

@@ -1,4 +1,5 @@
 require 'thor'
+require 'json'
 require 'envied/env_var_extractor'
 
 class ENVied
@@ -84,7 +85,7 @@ def check
 
       The Heroku config should be piped to this task:
 
-      heroku config | bundle exec envied check:heroku
+      heroku config --json | bundle exec envied check:heroku
 
       Use the check:heroku:binstub-task to turn this into a bash-script.
 
@@ -96,16 +97,12 @@ def check
     define_method "check:heroku" do
       if STDIN.tty?
         error <<-ERR
-Please pipe the contents of `heroku config` to this task.
-I.e. `heroku config | bundle exec envied check:heroku`"
+Please pipe the contents of `heroku config --json` to this task.
+I.e. `heroku config --json | bundle exec envied check:heroku`"
 ERR
         exit 1
       end
-      config = STDIN.read
-      heroku_env = Hash[config.split("\n")[1..-1].each_with_object([]) do |i, res|
-        res << i.split(":", 2).map(&:strip)
-      end]
-
+      heroku_env = JSON.parse(STDIN.read)
       ENV.replace({}).update(heroku_env)
 
       requested_groups = ENV['ENVIED_GROUPS'] || options[:groups]
@@ -119,7 +116,7 @@ def check
     long_desc <<-LONG
       Generates a shell script to check the Heroku config against the local Envfile.
 
-      The same as the check:heroku-task, but all in one script (no need to pipe `heroku config` to it etc.).
+      The same as the check:heroku-task, but all in one script (no need to pipe `heroku config --json` to it etc.).
 
     LONG
     option :dest, banner: "where to put the script", desc: "Default: bin/<app>-env-check or bin/heroku-env-check"

lib/envied/templates/heroku-env-check.tt

@@ -3,7 +3,7 @@
 # Check the config of a Heroku app against the defined variables in `Envfile`
 
 <%- if @app %>
-HEROKU_APP=<%= @app %> exec heroku config | bundle exec envied check:heroku --groups <%= @groups.join(" ") %>
+HEROKU_APP=<%= @app %> exec heroku config --json | bundle exec envied check:heroku --groups <%= @groups.join(" ") %>
 <%- else %>
-exec heroku config | bundle exec envied check:heroku --groups <%= @groups.join(" ") %>
+exec heroku config --json | bundle exec envied check:heroku --groups <%= @groups.join(" ") %>
 <%- end %>