fixup! Add heroku deployment feature

cookiecutter.json

@@ -8,5 +8,5 @@
 	"use_pipenv": ["no", "yes"],
 	"python_version": ["3.7", "3.6"],
 	"node_version": ["12", "10", "8"],
-	"deployment_on_heroku": ["no", "yes"]
+	"use_heroku": ["no", "yes"]
 }

hooks/post_gen_project.py

@@ -10,6 +10,7 @@ import sys
 def clean_extra_package_management_files():
     """Removes either requirements files and folder or the Pipfile."""
     use_pipenv = "{{cookiecutter.use_pipenv}}"
+    use_heroku = "{{cookiecutter.use_heroku}}"
     to_delete = []
 
     if use_pipenv == "yes":
@@ -17,6 +18,9 @@ def clean_extra_package_management_files():
     else:
         to_delete.append("Pipfile")
 
+    if use_heroku == "no":
+        to_delete = to_delete + ["Procfile", "app.json"]
+
     try:
         for file_or_dir in to_delete:
             if os.path.isfile(file_or_dir):

{{cookiecutter.app_name}}/Pipfile

@@ -12,8 +12,8 @@ click = ">=5.0"
 # Database
 Flask-SQLAlchemy = "==2.4.1"
 SQLAlchemy = "==1.3.9"
-{%- if cookiecutter.deployment_on_heroku == "yes" %}
-psycopg2 = "==2.8.3"
+{%- if cookiecutter.use_heroku == "yes" %}
+psycopg2-binary = "==2.8.3"
 {%- endif %}
 
 # Migrations

{{cookiecutter.app_name}}/README.rst

@@ -136,8 +136,8 @@ in your ``settings.py``::
 
     SEND_FILE_MAX_AGE_DEFAULT = 31556926  # one year
 
+{%- if cookiecutter.use_heroku == "yes" %}
 
-{%- if cookiecutter.deployment_on_heroku == "yes" %}
 Deployment on Heroku
 --------------------
 
@@ -174,13 +174,15 @@ If you want deploy by using Heroku CLI:
     heroku buildpacks:add --index=1 heroku/nodejs
     heroku buildpacks:add --index=1 heroku/python
 
-* add Postgres database addon (it also sets `DATABASE_URL` environmental variable to created database)::
+* add database addon which sets Postgres in version 11 in free `hobby-dev` plan (https://elements.heroku.com/addons/heroku-postgresql#hobby-dev) (it also sets `DATABASE_URL` environmental variable to created database)::
 
-    heroku addons:create heroku-postgresql:hobby-dev
+    heroku addons:create heroku-postgresql:hobby-dev --version=11
 
-* set environmental variables (change secret key)::
+* set environmental variables: change secret key.
+  `DATABASE_URL` environmental variable is set by database addon in previous step.
+  Please check `.env.example` to get overview which environmental variables are used in project.::
 
-    heroku config:set SECRET_KEY=<secret-key>
+    heroku config:set SECRET_KEY=not-so-secret
     heroku config:set FLASK_APP=autoapp.py
 
 * deploy on Heroku::

{{cookiecutter.app_name}}/app.json

@@ -21,7 +21,7 @@
    ],
    "addons": [
       {
-         "plan": "heroku-postgresql",
+         "plan": "heroku-postgresql:hobby-dev",
          "options": {
             "version": "11"
          }

{{cookiecutter.app_name}}/requirements/prod.txt

@@ -8,8 +8,8 @@ click>=7.0
 # Database
 Flask-SQLAlchemy==2.4.1
 SQLAlchemy==1.3.9
-{%- if cookiecutter.deployment_on_heroku == "yes" %}
-psycopg2==2.8.3
+{%- if cookiecutter.use_heroku == "yes" %}
+psycopg2-binary==2.8.3
 {%- endif %}
 
 # Migrations