flask_script - gather_templates command (like djangos management command, but for flask)

manage.py

from flask import Flask
from flask_script import Manager
from flask_admin import Admin
import os.path as op
import os

app = Flask(__name__)
manager = Manager(app)
admin = Admin(app)  #<-- this gives our app some templates to gather

def gather_template_files(verbose=False):
    template_files = map(lambda x: (
                x[0],
                x[1],
                   open(x[0],'r').read()
                    ),map(lambda x: (
                x.filename,
                x.name
                    ),map(
                app.jinja_env.get_template,
                app.jinja_env.list_templates()
                )
           )
    )
    base = 'templates'
    success = True
    
    for location,name,text in template_files:
        filename = op.join(base,name)
        filedir = op.join(base,op.dirname(name))
        if not op.exists(filedir):
            if verbose:
                print 'Directory path {} does not exist, creating now...\n\n'.format(filedir)
            os.makedirs(filedir)
        with open(filename,'w') as f:
            try:
                if verbose:
                    print 'Preparing to write file {}\n'.format(filename)
                f.write(text)
                if verbose:
                    print 'wrote {} to file\n'.format(filename)
            except:
                success = False
                pass
    return success
    
@manager.command
def gather_templates():
    if gather_template_files():
        print 'all template files gathered'
    else:
        print 'error gathering templates'

@manager.command
def gather_templates_verbose():
    if gather_template_files(verbose=True):
        print 'all template files gathered'
    else:
        print 'error gathering templates'

if __name__ == "__main__":
    manager.run()