Complete refactor and reworked usage.

The usage is completely replaced. Now locally I run inside a pipenv and
remotely using Docker.

- Use Supersonic as the Cron daemon.
- Run locally using pipenv.
- Run remotely using Docker (and docker-compose).
- Automate tasks using pipenv custom script shortcuts.
- Updated pre-commit hooks, added yamllint hook.
- Added license.
- Updated README.

.dockerignore

+*
+!Pipfile*
+!poca.xml
+!crontab

.envrc

+source_up
+layout pipenv

.pre-commit-config.yaml

+---
+repos:
   - repo: https://github.com/pre-commit/pre-commit-hooks
-    sha: v0.7.1
+    rev: v2.2.1
     hooks:
-    -   id: check-added-large-files
       - id: check-yaml
+      - id: check-xml
+      - id: check-added-large-files
       - id: check-merge-conflict
--   repo: https://github.com/willthames/ansible-lint
-    sha: v3.4.13
-    hooks:
-    -   id: ansible-lint
-        files: playbook\.yml
-        args: ['--exclude=roles']
--   repo: https://github.com/adarnimrod/shell-pre-commit
-    sha: v0.5.4
+      - id: check-symlinks
+      - id: trailing-whitespace
+  - repo: https://github.com/adrienverge/yamllint
+    rev: v1.15.0
     hooks:
-    -   id: shell-lint
-        files: receiver
-    -   id: shellcheck
-        files: receiver
+      - id: yamllint

Dockerfile

+FROM adarnimrod/cron as supersonic
+
+FROM python:3.7-alpine
+COPY --from=supersonic /usr/local/bin/supersonic /usr/local/bin/
+RUN pip install --no-cache-dir pipenv
+COPY Pipfile* /poquita/
+WORKDIR /poquita
+RUN apk add --update --no-cache --virtual .lxml-build build-base libxslt-dev && \
+    pipenv install --deploy --system && \
+    apk del .lxml-build && \
+    apk add --update --no-cache --virtual .lxml-runtime libxml2 libxslt
+COPY --chown=root:root crontab /poquita/
+COPY --chown=root:root poca.xml /poquita/
+VOLUME /poquita/db/ /poquita/Podcasts/
+CMD [ "supersonic", "crontab" ]
+USER nobody
+HEALTHCHECK CMD pgrep supersonic

LICENSE.txt

+MIT License
+
+Copyright (c) 2019 Adar Nimrod
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

Pipfile

+[[source]]
+name = "pypi"
+url = "https://pypi.org/simple"
+verify_ssl = true
+
+[dev-packages]
+pre-commit = "*"
+docker-compose = "*"
+
+[packages]
+poca = "*"
+
+[requires]
+python_version = "3.7"
+
+[scripts]
+deploy = "docker-compose up --detach --build --remove-orphans"
+subscribe = "poca-subscribe -c ."
+lint = "pre-commit"

README.md

 # Poquita
 
-My setup of [Poca](https://github.com/brokkr/poca/).
+> My setup of [Poca](https://github.com/brokkr/poca/).
 
-My workflow is managing the podcast list (and config and provisioning and
-deployment scripts) via git, using
-[gitreceive](https://github.com/progrium/gitreceive/) to deploy new versions to
-the downloading machine (syncing files locally when afterward).
+My setup consists of keeping the subscriptions in git (`poca.xml`), managing
+them locally and running the downloader inside a Docker container remotely. The
+final part of syncing the downloads is using unison and is managed in my
+[rcfiles](https://www.shore.co.il/git/rcfiles) repository.
 
-## Running Poca locally
+## Requirements
 
-`tox`
+- Python 3.7
+- pipenv
 
-## Running poca-subscribe locally
+## Usage
 
-`tox -e poca-subscribe -- {add,delete,list,toggle} ...`
+Adding/ removing/ list/ toggling subscriptions:
+```
+pipenv run subscribe {add,delete,list,toggle}
+```
 
-## Provision a machine for git push
+Deploying a new version:
+```
+pipenv run deploy
+```
 
-`tox -e ansible -- -i xbmc.shore.co.il,`
+Linting (using [pre-commit](https://pre-commit.com/)):
+```
+pipenv run lint
+```
 
-## Deploying a new version
+## License
 
-    git remote add kodi git@xbmc.shore.co.il:poquita.git
-    git push kodi
-
-## Running [pre-commit](http://pre-commit.com/)
-
-`tox -e pre-commit`
+This software is licensed under the MIT license (see `LICENSE.txt`).

ansible.cfg

-[defaults]
-library = library
-host_key_checking = False
-retry_files_enabled = False
-roles_path = ./roles/
-command_warnings = True
-deprecation_warnings = True
-callback_whitelist = profile_tasks
-retry_files_save_path = /tmp/
-
-[ssh_connection]
-pipelining = True
-
-[privilege_escalation]
-become = True
-become_method = sudo
-become_user = root
-become_ask_pass = False

crontab

+0 */4 * * * cd /poquita && poca --config ./

docker-compose.yml

+---
+version: '2'
+services:
+  - poquita:
+      build:
+        context: ./
+      restart: on-failure
+      user: '1000' # My (Nimrod) uid on the xbmc host.
+      volumes:
+        - /srv/library/nimrod/Podcasts:/poquita/Podcasts
+        - poquita:/poquita/db
+
+volumes:
+  poquita:

playbook.yml

----
-- hosts: all
-  pre_tasks:
-      - name: APT install Python3, Tox, Cron, Unison
-        apt:
-            name:
-                - python3
-                - tox
-                - cron-daemon
-                - unison
-            state: present
-            update_cache: True
-            cache_valid_time: 3600
-
-      - name: Get authorized keys
-        become: False
-        slurp:
-            src: ~/.ssh/authorized_keys
-        register: authorized_keys
-  roles:
-      - name: gitreceive
-        gitreceive_public_keys: "{{ (authorized_keys['content']|b64decode).splitlines() }}"
-        gitreceive_receiver_script: |
-            #!/bin/sh
-            set -eu
-            echo '----> Unpacking ...'
-            mkdir -p ~/poquita
-            cd ~/poquita
-            tar -xf -
-            if [ -f receiver ] && [ -x receiver ]
-            then
-                echo '----> Running receiver ...'
-                ./receiver
-            fi
-            echo '----> OK.'
-  post_tasks:
-      - name: Create Podcasts directory
-        file:
-            path: /srv/library/nimrod/Podcasts
-            state: directory
-            owner: nimrod
-            group: git
-            mode: 0o0775

receiver

-#!/bin/sh
-set -eu
-
-# shellcheck disable=SC2016
-( (crontab -l 2>/dev/null || true) | sed '/poquita/d'; echo '0 */4 * * * tox -c $HOME/poquita/tox.ini | logger' )  | crontab -

requirements.yml

----
-- src: adarnimrod.gitreceive
-  name: gitreceive

tox.ini

-[tox]
-skipsdist = True
-envlist = poca
-
-[testenv:poca]
-basepython = python3
-deps =
-    feedparser
-    lxml
-    mutagen
-    git+https://github.com/brokkr/poca/@v0.8
-commands =
-    poca --config ./ {posargs}
-
-[testenv:poca-subscribe]
-envdir = {toxworkdir}/poca
-basepython = python3
-deps =
-    feedparser
-    lxml
-    mutagen
-    git+https://github.com/brokkr/poca/@v0.8
-commands =
-    poca-subscribe --config ./ {posargs}
-
-[testenv:ansible]
-deps =
-    ansible==2.3.0.0
-commands =
-    ansible-galaxy install -r requirements.yml
-    ansible-playbook playbook.yml {posargs}
-passenv = HOME TERM ANSIBLE_* AWS_*
-setenv =
-    ANSIBLE_VERBOSITY=2
-
-[testenv:pre-commit]
-deps =
-    pre-commit==0.14.1
-commands =
-    pre-commit {posargs}