ci: Add Jenkins pipeline

In some cases, the default codec used by PyYAML is not UTF-8, so loading
the song quotes database fails. Using the `codecs.open` helper function
ensures that the contents of the file are always read with the correct
character set.

.gitignore

@@ -0,0 +1 @@
+/dist/

ci/Jenkinsfile

@@ -0,0 +1,16 @@
+pipeline {
+    agent any
+
+    environment {
+        PUBLISH_HOST = 'web0.pyrocufflink.blue'
+        PUBLISH_USER = 'webapp.dchwww'
+    }
+
+    stages {
+        stage('Publish') {
+            steps {
+                sh '. ci/publish.sh'
+            }
+        }
+    }
+}

ci/publish.sh

@@ -0,0 +1,8 @@
+#!/bin/sh
+
+rsync -rti . ${PUBLISH_USER}@${PUBLISH_HOST}: \
+	--exclude dist/ --exclude .git
+rsync -rti dist/ ${PUBLISH_USER}@${PUBLISH_HOST}:wheelhouse \
+	--include '*.whl' --exclude '**'
+ssh ${PUBLISH_USER}@${PUBLISH_HOST} \
+	venv/bin/pip install --no-index -f wheelhouse -r requirements.txt

requirements.txt

@@ -0,0 +1,3 @@
+Milla>=0.3
+Jinja2>=2.9
+PyYAML>=3.10

site.py

@@ -1,5 +1,6 @@
 from milla.dispatch import routing
 from webob import acceptparse
+import codecs
 import jinja2
 import milla
 import os
@@ -24,7 +25,8 @@ env = jinja2.Environment(
 )
 
 
-with open(os.path.join(os.path.dirname(__file__), 'songquotes.yml')) as f:
+songquotes = os.path.join(os.path.dirname(__file__), 'songquotes.yml')
+with codecs.open(songquotes, 'r', encoding='utf-8') as f:
     songquotes = yaml.load(f, Loader=YamlLoader)