How to use Play with custom modules and continuous integration

Question

How can I set up builds of Play apps and (custom) Play modules in a CI system so that when a module\'s build is good, the build installs the module artifacts in a local reposito

Answer 1

I wrote this little Play! command that basically it does the same thing, but integrates nicely into Play!

http://www.playframework.org/community/snippets/25

from play.utils import *
from poster.encode import multipart_encode
from poster.streaminghttp import register_openers
import urllib
import urllib2
import yaml

COMMANDS = ['nexus-commit',]

HELP = {
    'nexus-commit': 'push built module to nexus'
}

def execute(**kargs):
    app = kargs.get("app")
    args = kargs.get("args")
    play_env = kargs.get("env")

    print '~ '
    print '~ Commiting to nexus server'
    print '~ '

    app.check()
    nexus = app.readConf('nexus.server.url')
    user = app.readConf('nexus.server.user')
    password = app.readConf('nexus.server.password')

    if nexus:
        print '~ Found nexus repository : %s' % nexus
    else:
        print '~ No nexus server configured'
        print '~ Set up the following on your application.conf:'
        print '~    nexus.server.url'
        print '~    nexus.server.user'
        print '~    nexus.server.password'
        sys.exit(0)

    #Getting module version from dependencies file
    deps_file = os.path.join(app.path, 'conf', 'dependencies.yml')
    if os.path.exists(deps_file):
        f = open(deps_file)
        deps = yaml.load(f.read())
        #Is this a Play~ module?
        if "self" in deps:
            d = deps["self"].split(" ")
            module_version = d.pop()
            app_name = d.pop()
        else:
            app_name = app.name()
            print '~ This is not a Play module'
            module_version = app.readConf('application.version')
            if not module_version:
                print '~ '
                print '~ No application.version found in application.conf file'
                print '~ '
                module_version = raw_input('~ Provide version number to be pushed to Nexus:')
        f.close

    if module_version:
        print '~ Module version : %s' % module_version
        print '~ '
    else:
        print '~ No module version configured.'
        print '~ Configure your dependencies file properly'
        sys.exit(0)

    dist_dir = os.path.join(app.path, 'dist')

    #Only interested on .zip files
    for root, dirs, files in os.walk(dist_dir):
        files = [ fi for fi in files if fi.endswith(".zip") ]

    #Loop over all found files
    if len(files) >0:
        for file in files:
            if "-a" in args:
                #We won't ask the user if he wants to commit
                resp = "Y"
            else:
                resp = raw_input('~ Do you want to post %s to nexus? (Y/N) ' % file)
            if resp == 'Y':
                url = '%s/%s/%s-SNAPSHOT/%s-%s-SNAPSHOT.zip' % (nexus, app_name, module_version, app_name, module_version)
                print '~ '
                print '~ Sending %s to %s' % (file, url)

                try:
                    data = open(os.path.join(dist_dir, file), 'rb')
                except:
                    print '~ Error: could not open file %s for reading' % file
                    continue 

                openers = register_openers()
                #post data to Nexus using configured credentials
                passman = urllib2.HTTPPasswordMgrWithDefaultRealm()
                passman.add_password(None, url, user, password)
                authhandler = urllib2.HTTPBasicAuthHandler(passman)
                openers.add_handler(authhandler)
                openers.add_handler(urllib2.HTTPHandler(debuglevel=1))
                datagen, headers = multipart_encode({"file": data})
                request = urllib2.Request(url, datagen, headers)

                try:
                    print urllib2.urlopen(request).read()
                    print '~ File correctly sent'
                except urllib2.HTTPError, err:
                    print '~ Error: Nexus replied with -- %s' % err

            else:
                print '~ '
                print '~ Skiping %s' % file
    else:
        print '~ '
        print '~ No module build found.'
        print '~ Try "play build-module" command first'
        print '~ '