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#!/usr/bin/env python

import json
import morphlib
import os
import subprocess
import sys
import urllib
import urllib2
import urlparse
import yaml
import re

verbose = False
if '--verbose' in sys.argv or '-v' in sys.argv:
    verbose = True

# load all morphologies in the definitions repo
sb = morphlib.sysbranchdir.open_from_within('.')
loader = morphlib.morphloader.MorphologyLoader()
morphs = [m for m in sb.load_all_morphologies(loader)]
print 'Found %d morphologies in total' % len(morphs)


# Harvest all the morphologies on the directory
morphologies = { 'chunk': '', 'stratum': '', 'system' : '', 'cluster': '' } 

for key in morphologies.iterkeys():
    morphologies[key] = [m for m in morphs if m['kind'] == key]
    #print 'There are: %d %s' %(len(morphologies[key]), key)

# organise the definitions repo
definitions_repo = sb.get_git_directory_name(sb.root_repository_url)
def move_morphs(morphs, kind):
    if kind == 'cluster':
         print 'Moving %s into subdirectory' % kind
         subdir = os.path.join(definitions_repo, 'cluster')
         subprocess.call(['mkdir', '-p', subdir])
         for morph in morphs:
             for m in morph['systems']:
	         m['morph'] = str('systems/' + m['morph'] + '.morph')
	     #loader.save_to_file(morph.filename, morph)
	     loader.save_to_file(morph.filename, morph)
             new_location = os.path.join(subdir, morph.filename)
             #subprocess.call(['git', 'mv', morph.filename, new_location])
             #morph.filename = new_location
             #subprocess.call(['git', 'commit', '--quiet', '-m',
             #                 'Move %s into subdirectory' %kind])
    if kind == 'system':
         print 'Moving %s into subdirectory' % kind
         subdir = os.path.join(definitions_repo, 'system')
         subprocess.call(['mkdir', '-p', subdir])
         for morph in morphs:
             #print 'Initial: %s' % str(morph)
	     for stratum in morph['strata']:
	         stratum['morph'] = str('strata/' + stratum['morph'] + '.morph')
	     loader.save_to_file(morph.filename,morph)
             new_location = os.path.join(subdir, morph.filename)
             #subprocess.call(['git', 'mv', morph.filename, new_location])
             #morph.filename = new_location
             #subprocess.call(['git', 'commit', '--quiet', '-m',
             #                 'Move %s into subdirectory' %kind])
	 
    #for morph in morphs:
#	print '%s' %morph
#	str_morph = str(morph)
#	new_morph = loader.parse_morphology_text(str_morph, morph.filename)
#        new_location = os.path.join(subdir, morph.filename.replace('-' + kind,'',1))
#	loader.save_to_file(new_location,new_morph)
#	print '%s' % new_location
#       sys.exit(0)
        #subprocess.call(['git', 'mv', morph.filename, new_location])
        #morph.filename = new_location
    #subprocess.call(['git', 'commit', '--quiet', '-m',
    #                 'Move %s into subdirectory' % kind]m

for key in morphologies.iterkeys():
    print "Moving %s....\n" %key
    move_morphs(morphologies[key], key)

#move_morphs(chunks, 'chunks')
#move_morphs(strata, 'strata')
#move_morphs(systems, 'systems')
#move_morphs(clusters, 'clusters')
sys.exit(0)

# get a list of ALL the chunks
chunk_map = {}
for stratum in strata:
    for spec in stratum['chunks']:
        if spec['name'] not in chunk_map:
            chunk_map[spec['name']] = (spec['repo'], spec['ref'])

# look for a chunk morph in the repo
# NOTE: The following reimplements part of morphlib's remote repo cache stuff
def parse_repo_alias(repo):
    if verbose:
        print 'Parsing repo-alias %s' % repo
    domain, path = repo.split(':')
    if domain == 'baserock':
        repo = 'ssh://git@git.baserock.org/baserock/%s' % path
    elif domain == 'upstream':
        repo = 'ssh://git@git.baserock.org/delta/%s' % path
    else:
        raise Exception("I don't know how to parse the repo-alias \"%s\"" % repo)
    return repo

def make_request(path):
    server_url = 'http://git.baserock.org:8080/'
    url = urlparse.urljoin(server_url, '/1.0/%s' % path)
    handle = urllib2.urlopen(url)
    return handle.read()

def quote(*args):
    return tuple(urllib.quote(string) for string in args)

def ls_tree(repo, ref):
    info = yaml.load(make_request('trees?repo=%s&ref=%s' % quote(repo, ref)))
    return info['tree'].keys()

def cat_file(repo, ref, filename):
    return make_request('files?repo=%s&ref=%s&filename=%s' %
                        quote(repo, ref, filename))

new_chunks = []
i = 0
n = len(chunk_map)
for name, (repo, ref) in chunk_map.iteritems():
    i += 1
    if verbose:
        print '[%d/%d] Checking chunk: %s' % (i, n, name)
    repo = parse_repo_alias(repo)
    morph = morphlib.util.sanitise_morphology_path(name)
    if morph in ls_tree(repo, ref):
        print '[%d/%d] Getting chunk morph: %s' % (i, n, name)
        text = cat_file(repo, ref, morph)
        # convert the morphology to yaml, because we should be using yaml now
        try:
            morph_dict = json.loads(text)
        except ValueError:
            morph_dict = yaml.load(text)
        output = yaml.dump(morph_dict,
                           Dumper=morphlib.morphloader.OrderedDumper,
                           default_flow_style=False)
        path = os.path.join(definitions_repo, morph)
        with open(path, 'w') as f:
            f.write(output)
        new_chunks.append(name)

# move the new chunks
for chunk in new_chunks:
    morph = morphlib.util.sanitise_morphology_path(chunk)
    path = os.path.join(definitions_repo, os.path.join('chunks', morph))
    subprocess.call(['mv', morph, path])
    #subprocess.call(['git', 'add', path])
#subprocess.call(['git', 'commit', '-m', 'Add chunk morphologies'])

# update the chunk specs in the strata
for stratum in strata:
    for spec in stratum['chunks']:
        if 'morph' in spec:
            del spec['morph']
        if spec['name'] in new_chunks:
            morph = morphlib.util.sanitise_morphology_path(spec['name'])
            spec['morph'] = os.path.join('chunks', morph)
    loader.save_to_file(stratum.filename, stratum)