Here's a first pass at using shielded

.gitignore

@@ -1,3 +1,4 @@
 *.egg-info
 *.pyc
 env
+local.env

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "shielded"]
+	path = shielded
+	url = git://github.com/cainus/shielded.git

Makefile

@@ -23,4 +23,4 @@ clean:
 	find . -name \*.pyc -delete
 
 run: env/bin/aspen
-	./env/bin/aspen --www_root=www --project_root=.
+	foreman run -e local.env ./env/bin/aspen --www_root=www --project_root=.

badgr/colors.py

@@ -1,9 +1,8 @@
-"""This module contains RGB color definitions for Badgr.co.
+"""This module contains color definitions for Badgr.co, per shielded.
 """
-
-DARK_GREY = (74,74,74)
-LIGHT_GREY = (135,135,135)
-
-RED = (179,0,0)
-GREEN = (147,188,59)
-YELLOW = (177,175,0)
+GREEN = "green"
+YELLOWGREEN = "yellowgreen"
+YELLOW = "yellow"
+RED = "red"
+LIGHTGRAY = "lightgray"
+all_colors = [GREEN, YELLOWGREEN, YELLOW, RED, LIGHTGRAY]

badgr/services.py

@@ -1,90 +1,106 @@
 """This module contains service definions for Badgr.co.
 
-Service classes should take three strings (first, second, bg) and set three
-attributes (first, second, and bg).
+Service functions should take three strings (first, second, color) and return
+three strings (first, second, and color).
 
     first - the first path part => the first word on the badge
     second - the second path part => the second word on the badge
-    bg - an RGB color definition, the background behind the second word on the
-        badge
+    color - a color name, the background behind the second word on the badge
 
 """
+import os
+import time
 from urllib import quote, urlopen
 
-from badgr.colors import RED, YELLOW, GREEN, LIGHT_GREY
 from aspen import json
+from badgr.colors import RED, YELLOW, YELLOWGREEN, GREEN, LIGHTGRAY
+
+
+def _test(first, second, color):
+    """For testing.
+    """
+    time.sleep(2)
+    if second == "random":
+        base = os.environ['CANONICAL_HOST']
+        url = base + "/random.txt"
+        second = urlopen(url).read().strip()
+    return first, second, color
+
+
+def noop(first, second, color):
+    return first, second, color
+
+
+def coveralls(first, second, color):
+    first = "coverage"
+    url = "https://coveralls.io/repos/%s/badge.png?branch=master"
+    fp = urlopen(url % second)
+    try:
+        # We get a redirect to an S3 URL.
+        score = fp.url.split('_')[1].split('.')[0]
+        second = score + '%'
+
+        as_number = int(score)
+        if as_number < 80:
+            color = RED
+        elif as_number < 90:
+            color = YELLOW
+        else:
+            color = GREEN
+    except (IndexError, ValueError):
+        second = 'n/a'
+        color = LIGHTGRAY
 
-
-class Generic(object):
-
-    def __init__(self, first, second, bg):
-        self.first = first
-        self.second = second
-        self.bg = bg
-
-
-class Coveralls(object):
-
-    def __init__(self, first, second, bg):
-        self.first = "coverage"
-        url = "https://coveralls.io/repos/%s/badge.png?branch=master"
-        fp = urlopen(url % second)
-        try:
-            # We get a redirect to an S3 URL.
-            score = fp.url.split('_')[1].split('.')[0]
-            self.second = score + '%'
-
-            as_number = int(score)
-            if as_number < 80:
-                self.bg = RED
-            elif as_number < 90:
-                self.bg = YELLOW
-            else:
-                self.bg = GREEN
-        except (IndexError, ValueError):
-            self.second = 'n/a'
-            self.bg = LIGHT_GREY
+    return first, second, color
 
 
-class Gittip(object):
+def gittip(first, second, color):
+    first = "tips"
+    fp = urlopen("https://www.gittip.com/%s/public.json" % second)
+    receiving = float(json.loads(fp.read())['receiving'])
+    second = "$%d / week" % receiving
+    if receiving == 0:
+        color = RED
+    elif receiving < 10:
+        color = YELLOW
+    elif receiving < 100:
+        color = YELLOWGREEN
+    else:
+        color = GREEN
 
-    def __init__(self, first, second, bg):
-        self.first = "tips"
-        fp = urlopen("https://www.gittip.com/%s/public.json" % second)
-        receiving = json.loads(fp.read())['receiving']
-        self.second = "$%d / week" % float(receiving)
-        self.bg = (42, 143, 121)  # Gittip green! :)
+    return first, second, color
 
 
-class TravisCI(object):
+def travis_ci(first, second, color):
+    first = "build"
 
-    def __init__(self, first, second, bg):
-        self.first = "build"
+    url = 'https://api.travis-ci.org/repos?slug=%s' % quote(second)
+    fp = urlopen(url)
+    repos = json.loads(fp.read())
+    if repos:
+        status = repos[0].get('last_build_status', 'n/a')
+    else:
+        status = 'n/a'
 
-        url = 'https://api.travis-ci.org/repos?slug=%s' % quote(second)
-        fp = urlopen(url)
-        repos = json.loads(fp.read())
-        if repos:
-            status = repos[0].get('last_build_status', 'n/a')
-        else:
-            status = 'n/a'
+    second = { 0: 'passing'
+             , 1: 'failing'
+             , None: 'pending'
+             , 'n/a': 'n/a'
+              }.get(status, 'n/a')
 
-        self.second = { 0: 'passing'
-                      , 1: 'failing'
-                      , None: 'pending'
-                      , 'n/a': 'n/a'
-                       }.get(status, 'n/a')
+    color = { 'failing': RED
+            , 'passing': GREEN
+            , 'pending': YELLOW
+             }.get(second, LIGHTGRAY)
 
-        self.bg = { 'failing': RED
-                  , 'passing': GREEN
-                  , 'pending': YELLOW
-                   }.get(self.second, LIGHT_GREY)
+    return first, second, color
 
 
 services = {}
-services['coveralls'] = Coveralls
-services['gittip'] = Gittip
-services['travis-ci'] = TravisCI
+services['_test'] = _test
+services['coveralls'] = coveralls
+services['gittip'] = gittip
+services['travis-ci'] = travis_ci
 
 def get(first):
-    return services.get(first, Generic)
+    return services.get(first, noop)

bin/pre_compile

@@ -0,0 +1,46 @@
+#!/usr/bin/env bash
+
+set -eo pipefail
+indent()
+{ 
+    sed -u 's/^/       /' 
+}
+echo "=========================================="
+echo
+echo "1: $1"
+echo "2: $2"
+echo "cwd: $(pwd)"
+echo
+echo "=========================================="
+
+
+# Install Node.js.
+# ================
+# Adapted from https://github.com/heroku/heroku-buildpack-nodejs.
+
+echo "-----> Installing Node.js, version 0.10.15 ..."
+mkdir -p vendor/node
+cd vendor/node
+NODEBALL=http://heroku-buildpack-nodejs.s3.amazonaws.com/nodejs-0.10.15.tgz 
+curl $NODEBALL | tar zx
+
+
+# Install shielded.
+# =================
+
+echo "-----> Installing shielded ..."
+cd $BUILD_DIR/shielded/
+../vendor/node/bin/npm install | indent
+
+
+# Set up environment variables.
+# =============================
+# This is done with a script in .profile.d/:
+#
+#   https://devcenter.heroku.com/articles/profiled
+
+cd $BUILD_DIR
+mkdir -p .profile.d
+cat << EOF > .profile.d/badgr-node.sh
+export PATH=/app/vendor/node/bin:$PATH
+EOF

configure-aspen.py

@@ -0,0 +1,29 @@
+import os
+import time
+
+from aspen import log
+
+
+def time_request_inbound(request):
+    request._start = time.time()
+
+def time_request_outbound(response):
+    start = response.request._start
+    end = time.time()
+    elapsed = (end - start) * 1000.0
+    log("Request served in %.3f ms." % elapsed)
+
+website.hooks.inbound_early += [time_request_inbound]
+website.hooks.outbound += [time_request_outbound]
+
+
+
+# Up the threadpool size.
+# =======================
+# Yanked from Gittip. Should upstream this.
+
+def up_minthreads(website):
+    website.network_engine.cheroot_server.requests.min = \
+                                           int(os.environ['ASPEN_THREAD_POOL'])
+
+website.hooks.startup.insert(0, up_minthreads)

requirements.txt

@@ -3,4 +3,5 @@
 ./vendor/tornado-1.2.1.tar.gz
 ./vendor/aspen-0.24.3.tar.bz2
 
-./vendor/Pillow-2.0.0.zip
+./vendor/hiredis-0.1.1.tar.gz
+./vendor/redis-2.7.6.tar.gz