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include file rename tracking at metrics ingestion #31

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include file rename tracking at metrics ingestion #31

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42 changes: 41 additions & 1 deletion ingester/git.py
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Original file line number Diff line number Diff line change
Expand Up @@ -5,7 +5,7 @@
import math # Required for the math.log function
from ingester.commitFile import * # Represents a file
from classifier.classifier import * # Used for classifying each commit
import time
import re

"""
file: repository.py
Expand Down Expand Up @@ -110,6 +110,46 @@ def getCommitStatsProperties( stats, commitFiles, devExperience, author, unixTim

totalModified = fileLa + fileLd

# Check for filepath rename
oldpath, newpath, renamed = "", "", False

# check if the path was partially changed
match = re.search('^(.*)({.+=>.+})(.*)$', fileName)
if match:
oldpath = []
newpath = []
for group in match.groups():
change = re.search('^{(.+)=>(.+)}$', group)
if change:
old, new = change.groups()
oldpath.append(old.strip())
newpath.append(new.strip())
else:
oldpath.append(group)
newpath.append(group)
oldpath = "".join(oldpath).replace("//", "/").strip()
newpath = "".join(newpath).replace("//", "/").strip()
renamed = True

# If not, check if the path was fully changed
else:
match = re.search('^(.+)=>(.+)$', fileName)
if match:
oldpath, newpath = match.groups()
oldpath = oldpath.strip()
newpath = newpath.strip()
renamed = True

if renamed:
# In case of an error in the git history (e.g. due to rewrites),
# the old name may not exist in the dictionary. Therefore this extra
# check is required to avoid KeyErrors
if oldpath in commitFiles:
commitFiles[newpath] = commitFiles[oldpath]
setattr(commitFiles[newpath], 'name', newpath)

fileName = newpath

# have we seen this file already?
if(fileName in commitFiles):
prevFileChanged = commitFiles[fileName]
Expand Down