#!/usr/bin/python

### License: GPL
### Author:  Rudolf Kastl

### default target: /srv/mirror
### how?: use config file and special mirror .repo files

### todo:

#### code:
### - ConfigParser
### - logging
### - legacy and updates-testing awareness
### - fix hierachy into the fedora mirror dir scheme
### - use separate configs for each release
### - progressbars
### - eta (complete, per repo, per file(?!))

#### support files/packaging/integration:
### - creation of specially crafted .repo files
### - cron integration
### - 0 conf apache serving as split package
### - mock config files as split package
### - yum localmirror config files as split package
### - discuss access rights on /srv/mirror

##################
### special cases:
### - the fedora core repos differ in logic -> core repos have updates, updates-testing, legacy -> to be investigated
### - development is another special case not having updates updates-testing and legacy
### - other repos (3rd party) never have updates and updates-testing
### - SRPMS are another special case -> same for each arch of the same release
#############################



import os

flavourlist=["core", "extras", "updates", "updates-testing", "legacy"]
#versionlist=["development", "5", "4", "3", "2" ,"1"]
versionlist=["development"]
archlist=["i386" ]
#targetlocation="/home/che/mirror"
subflavourlist=["binary"]

##### block for parsing commandline switches
from optparse import OptionParser

parser = OptionParser()
### var can be accessed with options.filename
parser.add_option("-d", "--dest", dest="destination", help="Sync Destination", metavar="dir", default="/home/source")
parser.add_option("-n", "--newonly", action="store_true", dest="newonly", help="Sync Destination", default=False)
parser.add_option("-t", "--testonly" , action="store_true", dest="testonly", help="No Sync Transaction", default=False)
parser.add_option("-q", "--quiet", action="store_false", dest="verbose", default=True, help="don't print status msgs to stdout")

(options, args) = parser.parse_args()
##### end bloc

targetlocation = options.destination

def syncMirror (version, flavour, arch, subflavour, targetlocation):
        print "syncing: Fedora " + version, flavour, arch, subflavour, "to", targetlocation

        ### handling the special cases
        if subflavour == "binary":
                subflavourid = ""
                subflavourpath = ""
        elif subflavour == "source":
                subflavourid = "-"+subflavour
                subflavourpath = "/SRPMS"
        else:
                subflavourid = "-"+subflavour
                subflavourpath = "-"+subflavour 
        
        ### devel is special
        if version == "development":
                repoid="mirror-"+flavour+"-"+version+subflavourid
        else:
                repoid="mirror-"+flavour+subflavourid
        
        if subflavour == "source":
                targetdir=targetlocation+"/fedora/"+version+"/"+flavour+subflavourpath
        else:
                targetdir=targetlocation+"/fedora/"+version+"/"+flavour+"/"+arch+subflavourpath
        
        ### handling the newonly option of reposync
        if options.newonly == True:
                newonly = " -n"
        else:
                newonly = ""
        
        ### building the command for syncing a single repo
        syncdistro="mirrorreleasever="+version+" mirrorbasearch="+arch+" /usr/bin/reposync"+newonly+" -r "+repoid+" -p "+targetdir

        ### for testing we just print instead of sync
        if options.testonly == True:
                print syncdistro
        else:
                ### create potentially missing paths
                try:
                        if os.path.isdir(targetdir) == False:
                                os.makedirs(targetdir)
                except:
                        print "Error: Cannot create targetdirectory:", targetdir

                os.system(syncdistro)

#### main loop
for version in versionlist:
        for flavour in flavourlist:
                for arch in archlist:
                        for subflavour in subflavourlist:
                                ### stuff that just doesent happen
                                if version == "development" and flavour == "updates":
                                        continue
                                if version == "development" and flavour == "legacy":
                                        continue
                                if version == "development" and flavour == "updates-testing":
                                        continue
                                else:
                                        syncMirror(version, flavour, arch, subflavour, targetlocation)