CollectiveRefiningProgram/database.py at stable · Private/CollectiveRefiningProgram · GitHub

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"""
Kristoffer Langeland Knudsen
rainbowponyprincess@gmail.com
"""

importos
importbz2
importtime
importurllib2
importsqlite3assql


importcache


globaldb


## --------------------------------------------------------------- ##

definitialize(configtree):
"""
 Initialize the sqlite3 database. This provides access to the EVE Online database
 dump, containing information about item names, reprocessing yields, and so on.
 """

globaldb
filename=configtree.findtext(".//updates/database/filename")

ifnotos.path.isfile(filename):
# Some skank has sabotaged the database. It's time for an update.
updateDatabase(configtree)

db=sql.connect(filename)


## --------------------------------------------------------------- ##


defcursor():

globaldb
returndb.cursor()


## --------------------------------------------------------------- ##

defupdate(configtree):

cache.resetUpdateTimer('database',
time.time() +
float(configtree.findtext('.//updates/database/timer')))

local=configtree.findtext('.//updates/database/filename') +'.md5'
remote=configtree.findtext('.//updates/database/md5')

ifcheckDatabaseHash(local, remote):
print("")
print(" Update available.")
print("")
updateDatabase(configtree)
else:
print("")
print(" No update available")
print("")

defcheckDatabaseHash(local, remote):

ifnotos.path.isfile(local):
returnTrue

localHash=open(local)
remoteHash=urllib2.urlopen(remote)

returnlocalHash.read() !=remoteHash.read()


defupdateDatabase(configtree):
"""
 Update the EVE Online database SDE. Awesome.
 """

url=configtree.findtext(".//updates/database/url")
filename=configtree.findtext(".//updates/database/filename")

print("Updating database...")

print("Fetching sqlite database dump:")
print(url)

# All right - get the sqlite dump.
response=urllib2.urlopen(url)

print("\tResponse: "+str(response.getcode()))

ifresponse.getcode() !=200:
return

print("Downloading...")
dump=response.read()

print("Decompressing...")
dump=bz2.decompress(dump)

# Let's put it in a file.
sqlitefile=open(filename, 'wb')
sqlitefile.write(dump)

print("Wrote file: "+filename)

print("Fetching hash...")

md5=urllib2.urlopen(configtree.findtext('.//updates/database/md5'))
md5file=open(configtree.findtext('.//updates/database/filename') +'.md5', 'w')

md5file.write(md5.read())

print("Trimming database...")

try:
trimDatabase(filename)
print("\tOK")
except:
print("\tFAILED - This is common, don't worry.")

print("")
print("")


deftrimDatabase(filename):

# This is a hardcoded list for now, deal with it.
tables= ['invTypes',
'invGroups',
'invMarketGroups',
'invTypeMaterials',
'mapSolarSystems',
'staStations']

db=sql.connect(filename)

cursor=db.cursor()
cursor.execute("SELECT name, type FROM sqlite_master WHERE type='table'")

forname, _incursor.fetchall():

ifnamenotintables:
db.execute("DROP TABLE "+name+";")
db.commit()

db.execute("VACUUM")
db.close()