More changes done to improve compatibility with Python 3.

Changed from using the deprecated functions in the os module to using the
new ones in the subprocess module. All string reading now also uses the
string.decode() function, which seems to be recommended practice whenever
the input is a little "iffy".

blame.py

@@ -23,8 +23,8 @@ import comment
 import filtering
 import missing
 import multiprocessing
-import os
 import re
+import subprocess
 import sys
 import terminal
 import threading
@@ -49,10 +49,11 @@ class BlameThread(threading.Thread):
 		self.filename = filename
 
 	def run(self):
-		git_blame_r = os.popen(self.blame_string)
+		git_blame_r = subprocess.Popen(self.blame_string, shell=True, bufsize=1, stdout=subprocess.PIPE).stdout
 		is_inside_comment = False
 
 		for j in git_blame_r.readlines():
+			j = j.decode("utf-8", errors="replace")
 			if Blame.is_blame_line(j):
 				author = Blame.get_author(j)
 				content = Blame.get_content(j)
@@ -74,15 +75,17 @@ class BlameThread(threading.Thread):
 				self.blames[(author, self.filename)].rows += 1
 				__blame_lock__.release() # ...to here.
 
+		git_blame_r.close()
 		__thread_lock__.release() # Lock controlling the number of threads running
 
 class Blame:
 	def __init__(self, hard):
 		self.blames = {}
-		ls_tree_r = os.popen("git ls-tree --name-only -r HEAD")
+		ls_tree_r = subprocess.Popen("git ls-tree --name-only -r HEAD", shell=True, bufsize=1, stdout=subprocess.PIPE).stdout
 		lines = ls_tree_r.readlines()
 
 		for i, row in enumerate(lines):
+			row = row.decode("utf-8", errors="replace")
 			if FileDiff.is_valid_extension(row) and not filtering.set_filtered(FileDiff.get_filename(row)):
 				if not missing.add(row.strip()):
 					blame_string = "git blame -w {0} \"".format("-C -C -M" if hard else "") + row.strip() + "\""

changes.py

@@ -20,8 +20,9 @@
 from __future__ import print_function
 import extensions
 import filtering
-import os
 import re
+import os
+import subprocess
 import terminal
 
 class FileDiff:
@@ -86,13 +87,15 @@ class AuthorInfo:
 class Changes:
 	def __init__(self, hard):
 		self.commits = []
-		git_log_r = os.popen("git log --pretty='%ad|%t|%aN|%s' --stat=100000,8192 --no-merges -w " +
+		git_log_r = subprocess.Popen("git log --pretty='%ad|%t|%aN|%s' --stat=100000,8192 --no-merges -w " +
-		                     "{0} --date=short".format("-C -C -M" if hard else ""))
+		                             "{0} --date=short".format("-C -C -M" if hard else ""),
+		                             shell=True, bufsize=1, stdout=subprocess.PIPE).stdout
 		commit = None
 		found_valid_extension = False
 		lines = git_log_r.readlines()
 
 		for i in lines:
+			i = i.decode("utf-8", errors="replace")
 			if Commit.is_commit_line(i) or i == lines[-1]:
 				if found_valid_extension:
 					self.commits.append(commit)

metrics.py

@@ -22,7 +22,7 @@ from changes import FileDiff
 import comment
 import filtering
 import missing
-import os
+import subprocess
 
 __metric_eloc__ = {"java": 500, "c": 500, "cpp": 500, "h": 300, "hpp": 300, "py": 500, "glsl": 1000,
                    "rb": 500, "js": 500, "sql": 1000, "xml": 1000}
@@ -30,12 +30,13 @@ __metric_eloc__ = {"java": 500, "c": 500, "cpp": 500, "h": 300, "hpp": 300, "py"
 class Metrics:
 	def __init__(self):
 		self.eloc = {}
-		ls_tree_r = os.popen("git ls-tree --name-only -r HEAD")
+		ls_tree_r = subprocess.Popen("git ls-tree --name-only -r HEAD", shell=True, bufsize=1, stdout=subprocess.PIPE).stdout
 
 		for i in ls_tree_r.readlines():
+			i = i.decode("utf-8", errors="replace")
 			if FileDiff.is_valid_extension(i) and not filtering.set_filtered(FileDiff.get_filename(i)):
 				if not missing.add(i.strip()):
-					file_r = open(i.strip(), "r")
+					file_r = open(i.strip(), "rb")
 					extension = FileDiff.get_extension(i)
 					lines = Metrics.get_eloc(file_r, extension)
 
@@ -48,6 +49,7 @@ class Metrics:
 		eloc_counter = 0
 
 		for j in file_r.readlines():
+			j = j.decode("utf-8", errors="replace")
 			if is_inside_comment and comment.has_comment_end(extension, j):
 				is_inside_comment = False
 			elif comment.has_comment_begining(extension, j):

missing.py

@@ -19,6 +19,7 @@
 
 from __future__ import print_function
 import os
+import subprocess
 import terminal
 
 __checkout_missing__ = False
@@ -27,7 +28,7 @@ __missing_files__ =  set()
 def add(file_name):
 	if not os.path.exists(file_name):
 		if __checkout_missing__:
-			os.popen("git checkout \"" + file_name.strip() + "\"")
+			subprocess.call("git checkout \"" + file_name.strip() + "\"")
 		else:
 			__missing_files__.add(file_name)
 			return True