Added the ability to limit results by date range (Fixes issue 1).

This can now be done by supplying one (or both) of the "--since" and
"--until" parameters to the gitinspector executable. These parameters
work in the same manner as they do in git and accept the same values.
Statistics will only be generated from data between the given interval.

blame.py

@@ -23,6 +23,7 @@ from changes import FileDiff
 import comment
 import filtering
 import format
+import interval
 import missing
 import multiprocessing
 import re
@@ -84,15 +85,18 @@ class BlameThread(threading.Thread):
 class Blame:
 	def __init__(self, hard):
 		self.blames = {}
-		ls_tree_r = subprocess.Popen("git ls-tree --name-only -r HEAD", shell=True, bufsize=1, stdout=subprocess.PIPE).stdout
+		ls_tree_r = subprocess.Popen("git ls-tree --name-only -r " + interval.get_ref(), shell=True, bufsize=1,
+		                             stdout=subprocess.PIPE).stdout
 		lines = ls_tree_r.readlines()
 
 		for i, row in enumerate(lines):
 			row = row.decode("utf-8", "replace").strip().strip("\"").strip("'")
 			row = row.decode("string_escape").strip()
+
 			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() + "\""
+					blame_string = "git blame -w {0} ".format("-C -C -M" if hard else "") + \
+					               interval.get_ref() + " -- \"" + row.strip() + "\""
 					thread = BlameThread(blame_string, FileDiff.get_extension(row), self.blames, row.strip())
 					thread.daemon = True
 					thread.start()

changes.py

@@ -21,12 +21,12 @@ from __future__ import print_function
 from outputable import Outputable
 import extensions
 import filtering
+import interval
 import re
 import os
 import subprocess
 import terminal
 import textwrap
-import sys
 
 class FileDiff:
 	def __init__(self, string):
@@ -91,7 +91,8 @@ class AuthorInfo:
 class Changes:
 	def __init__(self, hard):
 		self.commits = []
-		git_log_r = subprocess.Popen("git log --pretty=\"%ad|%t|%aN|%s\" --stat=100000,8192 --no-merges -w " +
+		git_log_r = subprocess.Popen("git log --pretty=\"%ad|%H|%aN|%s\" --stat=100000,8192 --no-merges -w " +
+		                             interval.get_since() + interval.get_until() +
 		                             "{0} --date=short".format("-C -C -M" if hard else ""),
 		                             shell=True, bufsize=1, stdout=subprocess.PIPE).stdout
 		commit = None
@@ -115,6 +116,9 @@ class Changes:
 					filediff = FileDiff(i)
 					commit.add_filediff(filediff)
 
+		if interval.has_interval():
+			interval.set_ref(self.commits[0].sha)
+
 	def get_commits(self):
 		return self.commits
 

gitinspector.py

@@ -26,6 +26,7 @@ import filtering
 import format
 import getopt
 import help
+import interval
 import metrics
 import missing
 import os
@@ -81,8 +82,8 @@ if __name__ == "__main__":
 	try:
 		__opts__, __args__ = getopt.gnu_getopt(sys.argv[1:], "cf:F:hHlmrTwx:", ["checkout-missing", "exclude=",
 		                                                     "file-types=", "format=", "hard", "help", "list-file-types",
-		                                                     "metrics", "responsibilities", "grading", "timeline",
-		                                                     "version"])
+		                                                     "metrics", "responsibilities", "since=", "grading",
+		                                                     "timeline", "until=", "version"])
 		for o, a in __opts__:
 			if o in("-c", "--checkout-missing"):
 				missing.set_checkout_missing(True)
@@ -102,6 +103,8 @@ if __name__ == "__main__":
 				__run__.include_metrics = True
 			elif o in("-r", "--responsibilities"):
 				__run__.responsibilities = True
+			elif o in("--since"):
+				interval.set_since(a)
 			elif o in("--version"):
 				version.output()
 				sys.exit(0)
@@ -115,6 +118,8 @@ if __name__ == "__main__":
 				__run__.useweeks = True
 			elif o in("-T", "--timeline"):
 				__run__.timeline = True
+			elif o in("--until"):
+				interval.set_until(a)
 			elif o in("-w"):
 				__run__.useweeks = True
 			elif o in("-x", "--exclude"):

help.py

@@ -42,7 +42,11 @@ Mandatory arguments to long options are mandatory for short options too.
                                  analysis of commits
   -r  --responsibilities       show which files the different authors seem
                                  most responsible for
+      --since=DATE             show statistics for commits more recent than a
+                                 specific date
   -T, --timeline               show commit timeline, including author names
+      --until=DATE             show  statistics for commits older than a
+                                 specific date
   -w                           show all statistical information in weeks
                                  instead of in months
   -x, --exclude=PATTERN        an exclusion pattern describing file names that

interval.py

@@ -0,0 +1,49 @@
+#!/usr/bin/python
+# coding: utf-8
+#
+# Copyright © 2012-2013 Ejwa Software. All rights reserved.
+#
+# This file is part of gitinspector.
+#
+# gitinspector is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# gitinspector is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with gitinspector. If not, see <http://www.gnu.org/licenses/>.
+
+__since__ = ""
+
+__until__ = ""
+
+__ref__ = "HEAD"
+
+def has_interval():
+	return __since__ + __until__ != ""
+
+def get_since():
+	return __since__
+
+def set_since(since):
+	global __since__
+	__since__ = "--since=\"" + since + "\" "
+
+def get_until():
+	return __until__
+
+def set_until(until):
+	global __until__
+	__until__ = "--until=\"" + until + "\" "
+
+def get_ref():
+	return __ref__
+
+def set_ref(ref):
+	global __ref__
+	__ref__ = ref

missing.py

@@ -19,6 +19,7 @@
 
 from __future__ import print_function
 from outputable import Outputable
+import interval
 import os
 import subprocess
 import terminal
@@ -28,7 +29,7 @@ __checkout_missing__ = False
 __missing_files__ =  set()
 
 def add(file_name):
-	if not os.path.exists(file_name):
+	if not interval.has_interval() and not os.path.exists(file_name):
 		if __checkout_missing__:
 			subprocess.call("git checkout \"" + file_name.strip() + "\"", shell=True)
 		else: