prompt: You will be provided with a partial code base and an issue statement explaining a problem to resolve.
  <issue>
  Setup: generated files missing
  Traefik is ending up in a looped redirect when trying to download the generated files. Flask blueprint context to be modified to simplify the forwarding and eliminate the need for redirects.
  
  </issue>
  <code>
  [start of setup/server.py]
  1 import flask
  2 import flask_bootstrap
  3 import redis
  4 import json
  5 import os
  6 import jinja2
  7 import uuid
  8 import string
  9 import random
  10 import ipaddress
  11 
  12 
  13 app = flask.Flask(__name__)
  14 flask_bootstrap.Bootstrap(app)
  15 db = redis.StrictRedis(host='redis', port=6379, db=0)
  16 
  17 
  18 def render_flavor(flavor, template, data):
  19     return flask.render_template(
  20         os.path.join(flavor, template),
  21         **data
  22     )
  23 
  24 
  25 @app.add_template_global
  26 def secret(length=16):
  27     charset = string.ascii_uppercase + string.digits
  28     return ''.join(
  29         random.SystemRandom().choice(charset)
  30         for _ in range(length)
  31     )
  32 
  33 
  34 def build_app(path):
  35 
  36     app.jinja_env.trim_blocks = True
  37     app.jinja_env.lstrip_blocks = True
  38 
  39     @app.context_processor
  40     def app_context():
  41         return dict(versions=os.getenv("VERSIONS","master").split(','))
  42 
  43     version = os.getenv("this_version")
  44 
  45     bp = flask.Blueprint(version, __name__)
  46     bp.jinja_loader = jinja2.ChoiceLoader([
  47         jinja2.FileSystemLoader(os.path.join(path, "templates")),
  48         jinja2.FileSystemLoader(os.path.join(path, "flavors"))
  49     ])
  50 
  51     @bp.context_processor
  52     def bp_context(version=version):
  53         return dict(version=version)
  54 
  55     @bp.route("/")
  56     def wizard():
  57         return flask.render_template('wizard.html')
  58 
  59     @bp.route("/submit_flavor", methods=["POST"])
  60     def submit_flavor():
  61         data = flask.request.form.copy()
  62         steps = sorted(os.listdir(os.path.join(path, "templates", "steps", data["flavor"])))
  63         return flask.render_template('wizard.html', flavor=data["flavor"], steps=steps)
  64 
  65     @bp.route("/submit", methods=["POST"])
  66     def submit():
  67         data = flask.request.form.copy()
  68         data['uid'] = str(uuid.uuid4())
  69         data['dns'] = str(ipaddress.IPv4Network(data['subnet'])[-2])
  70         db.set(data['uid'], json.dumps(data))
  71         return flask.redirect(flask.url_for('.setup', uid=data['uid']))
  72 
  73     @bp.route("/setup/<uid>", methods=["GET"])
  74     def setup(uid):
  75         data = json.loads(db.get(uid))
  76         flavor = data.get("flavor", "compose")
  77         rendered = render_flavor(flavor, "setup.html", data)
  78         return flask.render_template("setup.html", contents=rendered)
  79 
  80     @bp.route("/file/<uid>/<filepath>", methods=["GET"])
  81     def file(uid, filepath):
  82         data = json.loads(db.get(uid))
  83         flavor = data.get("flavor", "compose")
  84         return flask.Response(
  85             render_flavor(flavor, filepath, data),
  86             mimetype="application/text"
  87         )
  88 
  89     app.register_blueprint(bp, url_prefix="/{}".format(version))
  90 
  91 
  92 if __name__ == "__main__":
  93     build_app("/tmp/mailutest")
  94     app.run(debug=True)
  95
  [end of setup/server.py]
  </code>
  
  I need you to solve this issue by generating a single patch file that I can apply directly to this repository using git apply. Please respond with a single patch file in the following format.
  <patch>
  diff --git a/file.py b/file.py
  --- a/file.py
  +++ b/file.py
  @@ -1,27 +1,35 @@
   def euclidean(a, b):
  -    while b:
  -        a, b = b, a % b
  -    return a
  +    if b == 0:
  +        return a
  +    return euclidean(b, a % b)
   
   
   def bresenham(x0, y0, x1, y1):
       points = []
       dx = abs(x1 - x0)
       dy = abs(y1 - y0)
  -    sx = 1 if x0 < x1 else -1
  -    sy = 1 if y0 < y1 else -1
  -    err = dx - dy
  +    x, y = x0, y0
  +    sx = -1 if x0 > x1 else 1
  +    sy = -1 if y0 > y1 else 1
   
  -    while True:
  -        points.append((x0, y0))
  -        if x0 == x1 and y0 == y1:
  -            break
  -        e2 = 2 * err
  -        if e2 > -dy:
  -            err -= dy
  -            x0 += sx
  -        if e2 < dx:
  -            err += dx
  -            y0 += sy
  +    if dx > dy:
  +        err = dx / 2.0
  +        while x != x1:
  +            points.append((x, y))
  +            err -= dy
  +            if err < 0:
  +                y += sy
  +                err += dx
  +            x += sx
  +    else:
  +        err = dy / 2.0
  +        while y != y1:
  +            points.append((x, y))
  +            err -= dx
  +            if err < 0:
  +                x += sx
  +                err += dy
  +            y += sy
  +
  +    points.append((x, y))
       return points
  
  </patch>
golden_diff: diff --git a/setup/server.py b/setup/server.py
  --- a/setup/server.py
  +++ b/setup/server.py
  @@ -10,7 +10,9 @@
   import ipaddress
   
   
  -app = flask.Flask(__name__)
  +version = os.getenv("this_version")
  +static_url_path = "/" + version + "/static"
  +app = flask.Flask(__name__, static_url_path=static_url_path)
   flask_bootstrap.Bootstrap(app)
   db = redis.StrictRedis(host='redis', port=6379, db=0)
   
  @@ -40,29 +42,37 @@
       def app_context():
           return dict(versions=os.getenv("VERSIONS","master").split(','))
   
  -    version = os.getenv("this_version")
  +    prefix_bp = flask.Blueprint(version, __name__)
  +    prefix_bp.jinja_loader = jinja2.ChoiceLoader([
  +        jinja2.FileSystemLoader(os.path.join(path, "templates")),
  +        jinja2.FileSystemLoader(os.path.join(path, "flavors"))
  +    ])
   
  -    bp = flask.Blueprint(version, __name__)
  -    bp.jinja_loader = jinja2.ChoiceLoader([
  +    root_bp = flask.Blueprint("root", __name__)
  +    root_bp.jinja_loader = jinja2.ChoiceLoader([
           jinja2.FileSystemLoader(os.path.join(path, "templates")),
           jinja2.FileSystemLoader(os.path.join(path, "flavors"))
       ])
   
  -    @bp.context_processor
  +    @prefix_bp.context_processor
  +    @root_bp.context_processor
       def bp_context(version=version):
           return dict(version=version)
   
  -    @bp.route("/")
  +    @prefix_bp.route("/")
  +    @root_bp.route("/")
       def wizard():
           return flask.render_template('wizard.html')
   
  -    @bp.route("/submit_flavor", methods=["POST"])
  +    @prefix_bp.route("/submit_flavor", methods=["POST"])
  +    @root_bp.route("/submit_flavor", methods=["POST"])
       def submit_flavor():
           data = flask.request.form.copy()
           steps = sorted(os.listdir(os.path.join(path, "templates", "steps", data["flavor"])))
           return flask.render_template('wizard.html', flavor=data["flavor"], steps=steps)
   
  -    @bp.route("/submit", methods=["POST"])
  +    @prefix_bp.route("/submit", methods=["POST"])
  +    @root_bp.route("/submit", methods=["POST"])
       def submit():
           data = flask.request.form.copy()
           data['uid'] = str(uuid.uuid4())
  @@ -70,14 +80,16 @@
           db.set(data['uid'], json.dumps(data))
           return flask.redirect(flask.url_for('.setup', uid=data['uid']))
   
  -    @bp.route("/setup/<uid>", methods=["GET"])
  +    @prefix_bp.route("/setup/<uid>", methods=["GET"])
  +    @root_bp.route("/setup/<uid>", methods=["GET"])
       def setup(uid):
           data = json.loads(db.get(uid))
           flavor = data.get("flavor", "compose")
           rendered = render_flavor(flavor, "setup.html", data)
           return flask.render_template("setup.html", contents=rendered)
   
  -    @bp.route("/file/<uid>/<filepath>", methods=["GET"])
  +    @prefix_bp.route("/file/<uid>/<filepath>", methods=["GET"])
  +    @root_bp.route("/file/<uid>/<filepath>", methods=["GET"])
       def file(uid, filepath):
           data = json.loads(db.get(uid))
           flavor = data.get("flavor", "compose")
  @@ -86,7 +98,8 @@
               mimetype="application/text"
           )
   
  -    app.register_blueprint(bp, url_prefix="/{}".format(version))
  +    app.register_blueprint(prefix_bp, url_prefix="/{}".format(version))
  +    app.register_blueprint(root_bp)
   
   
   if __name__ == "__main__":
  
verification_info: {"golden_diff": "diff --git a/setup/server.py b/setup/server.py\n--- a/setup/server.py\n+++ b/setup/server.py\n@@ -10,7 +10,9 @@\n import ipaddress\n \n \n-app = flask.Flask(__name__)\n+version = os.getenv(\"this_version\")\n+static_url_path = \"/\" + version + \"/static\"\n+app = flask.Flask(__name__, static_url_path=static_url_path)\n flask_bootstrap.Bootstrap(app)\n db = redis.StrictRedis(host='redis', port=6379, db=0)\n \n@@ -40,29 +42,37 @@\n     def app_context():\n         return dict(versions=os.getenv(\"VERSIONS\",\"master\").split(','))\n \n-    version = os.getenv(\"this_version\")\n+    prefix_bp = flask.Blueprint(version, __name__)\n+    prefix_bp.jinja_loader = jinja2.ChoiceLoader([\n+        jinja2.FileSystemLoader(os.path.join(path, \"templates\")),\n+        jinja2.FileSystemLoader(os.path.join(path, \"flavors\"))\n+    ])\n \n-    bp = flask.Blueprint(version, __name__)\n-    bp.jinja_loader = jinja2.ChoiceLoader([\n+    root_bp = flask.Blueprint(\"root\", __name__)\n+    root_bp.jinja_loader = jinja2.ChoiceLoader([\n         jinja2.FileSystemLoader(os.path.join(path, \"templates\")),\n         jinja2.FileSystemLoader(os.path.join(path, \"flavors\"))\n     ])\n \n-    @bp.context_processor\n+    @prefix_bp.context_processor\n+    @root_bp.context_processor\n     def bp_context(version=version):\n         return dict(version=version)\n \n-    @bp.route(\"/\")\n+    @prefix_bp.route(\"/\")\n+    @root_bp.route(\"/\")\n     def wizard():\n         return flask.render_template('wizard.html')\n \n-    @bp.route(\"/submit_flavor\", methods=[\"POST\"])\n+    @prefix_bp.route(\"/submit_flavor\", methods=[\"POST\"])\n+    @root_bp.route(\"/submit_flavor\", methods=[\"POST\"])\n     def submit_flavor():\n         data = flask.request.form.copy()\n         steps = sorted(os.listdir(os.path.join(path, \"templates\", \"steps\", data[\"flavor\"])))\n         return flask.render_template('wizard.html', flavor=data[\"flavor\"], steps=steps)\n \n-    @bp.route(\"/submit\", methods=[\"POST\"])\n+    @prefix_bp.route(\"/submit\", methods=[\"POST\"])\n+    @root_bp.route(\"/submit\", methods=[\"POST\"])\n     def submit():\n         data = flask.request.form.copy()\n         data['uid'] = str(uuid.uuid4())\n@@ -70,14 +80,16 @@\n         db.set(data['uid'], json.dumps(data))\n         return flask.redirect(flask.url_for('.setup', uid=data['uid']))\n \n-    @bp.route(\"/setup/<uid>\", methods=[\"GET\"])\n+    @prefix_bp.route(\"/setup/<uid>\", methods=[\"GET\"])\n+    @root_bp.route(\"/setup/<uid>\", methods=[\"GET\"])\n     def setup(uid):\n         data = json.loads(db.get(uid))\n         flavor = data.get(\"flavor\", \"compose\")\n         rendered = render_flavor(flavor, \"setup.html\", data)\n         return flask.render_template(\"setup.html\", contents=rendered)\n \n-    @bp.route(\"/file/<uid>/<filepath>\", methods=[\"GET\"])\n+    @prefix_bp.route(\"/file/<uid>/<filepath>\", methods=[\"GET\"])\n+    @root_bp.route(\"/file/<uid>/<filepath>\", methods=[\"GET\"])\n     def file(uid, filepath):\n         data = json.loads(db.get(uid))\n         flavor = data.get(\"flavor\", \"compose\")\n@@ -86,7 +98,8 @@\n             mimetype=\"application/text\"\n         )\n \n-    app.register_blueprint(bp, url_prefix=\"/{}\".format(version))\n+    app.register_blueprint(prefix_bp, url_prefix=\"/{}\".format(version))\n+    app.register_blueprint(root_bp)\n \n \n if __name__ == \"__main__\":\n", "issue": "Setup: generated files missing\nTraefik is ending up in a looped redirect when trying to download the generated files. Flask blueprint context to be modified to simplify the forwarding and eliminate the need for redirects.\n", "before_files": [{"content": "import flask\nimport flask_bootstrap\nimport redis\nimport json\nimport os\nimport jinja2\nimport uuid\nimport string\nimport random\nimport ipaddress\n\n\napp = flask.Flask(__name__)\nflask_bootstrap.Bootstrap(app)\ndb = redis.StrictRedis(host='redis', port=6379, db=0)\n\n\ndef render_flavor(flavor, template, data):\n    return flask.render_template(\n        os.path.join(flavor, template),\n        **data\n    )\n\n\n@app.add_template_global\ndef secret(length=16):\n    charset = string.ascii_uppercase + string.digits\n    return ''.join(\n        random.SystemRandom().choice(charset)\n        for _ in range(length)\n    )\n\n\ndef build_app(path):\n\n    app.jinja_env.trim_blocks = True\n    app.jinja_env.lstrip_blocks = True\n\n    @app.context_processor\n    def app_context():\n        return dict(versions=os.getenv(\"VERSIONS\",\"master\").split(','))\n\n    version = os.getenv(\"this_version\")\n\n    bp = flask.Blueprint(version, __name__)\n    bp.jinja_loader = jinja2.ChoiceLoader([\n        jinja2.FileSystemLoader(os.path.join(path, \"templates\")),\n        jinja2.FileSystemLoader(os.path.join(path, \"flavors\"))\n    ])\n\n    @bp.context_processor\n    def bp_context(version=version):\n        return dict(version=version)\n\n    @bp.route(\"/\")\n    def wizard():\n        return flask.render_template('wizard.html')\n\n    @bp.route(\"/submit_flavor\", methods=[\"POST\"])\n    def submit_flavor():\n        data = flask.request.form.copy()\n        steps = sorted(os.listdir(os.path.join(path, \"templates\", \"steps\", data[\"flavor\"])))\n        return flask.render_template('wizard.html', flavor=data[\"flavor\"], steps=steps)\n\n    @bp.route(\"/submit\", methods=[\"POST\"])\n    def submit():\n        data = flask.request.form.copy()\n        data['uid'] = str(uuid.uuid4())\n        data['dns'] = str(ipaddress.IPv4Network(data['subnet'])[-2])\n        db.set(data['uid'], json.dumps(data))\n        return flask.redirect(flask.url_for('.setup', uid=data['uid']))\n\n    @bp.route(\"/setup/<uid>\", methods=[\"GET\"])\n    def setup(uid):\n        data = json.loads(db.get(uid))\n        flavor = data.get(\"flavor\", \"compose\")\n        rendered = render_flavor(flavor, \"setup.html\", data)\n        return flask.render_template(\"setup.html\", contents=rendered)\n\n    @bp.route(\"/file/<uid>/<filepath>\", methods=[\"GET\"])\n    def file(uid, filepath):\n        data = json.loads(db.get(uid))\n        flavor = data.get(\"flavor\", \"compose\")\n        return flask.Response(\n            render_flavor(flavor, filepath, data),\n            mimetype=\"application/text\"\n        )\n\n    app.register_blueprint(bp, url_prefix=\"/{}\".format(version))\n\n\nif __name__ == \"__main__\":\n    build_app(\"/tmp/mailutest\")\n    app.run(debug=True)\n", "path": "setup/server.py"}]}