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import sys,os;
sys.path.append(os.getenv("HOME") + "/slg/src/python")
from statbag import statbag
drives = {} # hash table for the drives
gb = 1000*1000*1000
class dr:
pass
def process_afcompare(fn):
import re
global null_drives,total_nochg,total_null,total_lzma,total_drives,drives_larger_1g
m = re.compile("\d\d\d\d[.]aff")
for line in open(fn,"r"):
r = m.search(line)
drive = r.group(0)
d = dr()
fields = line.split(" ")
while "" in fields: fields.remove("")
d.nochg = int(fields[4])
d.nul = int(fields[6])
d.lzma = int(fields[8])
d.old_bytes = int(fields[10])
d.new_bytes = int(fields[12])
drives[drive] = d
def process_afreport(fn):
import re
m = re.compile("\d\d\d\d[.]aff")
for line in open(fn,"r"):
r = m.search(line)
try:
drive = r.group(0)
if drive not in drives: continue
d = drives[drive]
line = line.replace("\t"," ")
fields = line.split(" ")
while "" in fields: fields.remove("")
d.imagesize = int(fields[1])
d.compressed = int(fields[2])
d.uncompressed = int(fields[3])
print d.iamgesize,d.compressed,d.uncompressed
except AttributeError:
pass
if(__name__=="__main__"):
import glob
for fn in glob.glob("*afcompare*"):
process_afcompare(fn)
for fn in glob.glob("*-report*"):
process_afreport(fn)
null_drives =0
big = {}
for (fn,d) in drives.iteritems():
if(d.nochg==0 and d.nul>=0 and d.lzma==0):
null_drives += 1
continue
if(d.uncompressed<gb):
continue
big[fn] = d
print "Total drives:",len(drives)
print "Drives that were completely blank:",null_drives
remaining = len(drives) - null_drives
print "Drives containing some data:",remaining
print "Drives larger than 1GB uncompressed:",len(big)
print
print "For the drives larger than 1GB uncompressed:"
print "(All sizes in megabytes)"
print "%8s %8s %8s %8s %s" % ("DriveID","Uncomp","EnCase","AFFLIB 1.7","Savings")
def myfunc(A,B):
a = big[A]
b = big[B]
if a.uncompressed < b.uncompressed: return -1
if a.uncompressed > b.uncompressed: return 1
return 0
fns = big.keys()
fns.sort(myfunc)
avg_savings = statbag();
for fn in fns:
d = big[fn]
savings = 100.0 - (100.0 * d.new_bytes/d.old_bytes)
if(d.old_bytes/1000000 < 10): continue
print "%8s %8d %8d %8d %5.2f%%" % (
fn,d.uncompressed/1000000,d.old_bytes/1000000,d.new_bytes/1000000,savings)
avg_savings.addx(savings)
print "\nAverage savings: %5.2f%%" % avg_savings.average()
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