autodebug diff tool

tools/autodediffer.py

@@ -0,0 +1,60 @@
+'''
+A semi-smart diff for autodebugger logs.
+
+Run it with filenames of two autodebugger logs as parameters
+'''
+
+import os, sys
+
+
+def process_line(line):
+  #AD:2041,0.900000
+  if not line.startswith('AD:'): return
+  line = line.split(':')[1]
+  num, val = line.split(',')
+  return [int(num), float(val)]
+
+a = open(sys.argv[1], 'r').readlines()
+b = open(sys.argv[2], 'r').readlines()
+MIN = 0.0001 if len(sys.argv) < 4 else sys.argv[3]
+
+ai = 0
+bi = 0
+maxx = max(len(a), len(b))
+
+while max(ai, bi) < maxx:
+  while 1:
+    av = process_line(a[ai])
+    if av: break
+    ai += 1
+  while 1:
+    bv = process_line(b[bi])
+    if bv: break
+    bi += 1
+  #print 'curr:', ai, bi, av, bv
+  # Find the nearest matching num, if not already matched
+  if not av[0] == bv[0]:
+    tai = ai+1
+    tbi = bi+1
+    while 1:
+      tav = process_line(a[tai])
+      tbv = process_line(b[tbi])
+      #print 'seek:', tai, tbi, tav, tbv
+      if tav and tav[0] == bv[0]:
+        ai = tai
+        av = tav
+        break
+      elif tbv and tbv[0] == av[0]:
+        bi = tbi
+        bv = tbv
+        break
+      tai += 1
+      tbi += 1
+
+  assert av[0] == bv[0]
+  diff = abs(av[1] - bv[1])
+  if diff > MIN:
+    print '<<%d %d>>  %d : %.5f' % (ai, bi, av[0], diff)
+  ai += 1
+  bi += 1
+