Add heroku-regen script, rename config/ -> misc/

Introduces a new script for quickly regenerating a Heroku instance
(typically with a new IP) to handle the rare circumstances where an
instance is flagged by Google and prompted for a captcha.

The config/ dir was renamed to misc/ to avoid confusion with the Docker
mounted config volume, and to more closely match its intended purpose
(which is to contain all miscellaneous features/scripts/etc that add
functionality to Whoogle, but are not critical for general use).

Dockerfile

@@ -55,8 +55,8 @@ ENV WHOOGLE_ALT_RD=$reddit_alt
 WORKDIR /whoogle
 
 COPY --from=builder /install /usr/local
-COPY config/tor/torrc /etc/tor/torrc
-COPY config/tor/start-tor.sh config/tor/start-tor.sh
+COPY misc/tor/torrc /etc/tor/torrc
+COPY misc/tor/start-tor.sh misc/tor/start-tor.sh
 COPY app/ app/
 COPY run .
 
@@ -65,4 +65,4 @@ EXPOSE $EXPOSE_PORT
 HEALTHCHECK  --interval=5m --timeout=5s \
   CMD wget --no-verbose --tries=1 http://localhost:${EXPOSE_PORT}/ || exit 1
 
-CMD config/tor/start-tor.sh & ./run
+CMD misc/tor/start-tor.sh & ./run

misc/heroku-regen.sh

@@ -0,0 +1,29 @@
+#!/bin/sh
+# Assumes this is being executed from a session that has already logged
+# into Heroku with "heroku login -i" beforehand.
+# 
+# You can set this up to run every night when you aren't using the
+# instance with a cronjob. For example:
+# 0 3 * * * /home/pi/whoogle-search/config/heroku-regen.sh <app_name>
+
+HEROKU_CLI_SITE="https://devcenter.heroku.com/articles/heroku-cli"
+
+if ! type "heroku" > /dev/null; then
+    echo "Must have heroku cli installed: $HEROKU_CLI_SITE"
+    exit 1
+fi
+
+cd "$(builtin cd "$(dirname "${BASH_SOURCE[0]}")" && pwd -P)/../"
+
+if [ $# -ne 1 ]; then
+    echo "Must provide the name of the Whoogle instance to regenerate"
+    exit 1
+fi
+
+APP_NAME="$1"
+
+heroku apps:destroy $APP_NAME --confirm $APP_NAME
+heroku apps:create $APP_NAME
+heroku container:login
+heroku container:push web
+heroku container:release web