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#!/usr/bin/env python3
# Copyright 2008 Marcus D. Hanwell <marcus@cryos.org>
# Minor changes for NUT by Charles Lepple
# Distributed under the terms of the GNU General Public License v2 or later
import re
from textwrap import TextWrapper
import sys
import subprocess
rev_range = ""
# Define the git command and its arguments as a list
git_command = [
"git",
"log",
"--summary",
"--stat",
"--no-merges",
"--date=short",
]
if len(sys.argv) > 1:
base = sys.argv[1]
rev_range = "%s..HEAD" % base
git_command.append(rev_range)
# Execute git log with the desired command line options.
process = subprocess.Popen(git_command, stdout=subprocess.PIPE, encoding="utf8")
fin = process.stdout
# Create a ChangeLog file in the current directory.
fout = open("ChangeLog", "w")
# Set up the loop variables in order to locate the blocks we want
authorFound = False
dateFound = False
messageFound = False
filesFound = False
message = ""
messageNL = False
files = ""
prevAuthorLine = ""
wrapper = TextWrapper(initial_indent="\t", subsequent_indent="\t ")
# The main part of the loop
for line in fin:
# The commit line marks the start of a new commit object.
if line.startswith("commit"):
# Start all over again...
authorFound = False
dateFound = False
messageFound = False
messageNL = False
message = ""
filesFound = False
files = ""
continue
# Match the author line and extract the part we want
# (Don't use startswith to allow Author override inside commit message.)
elif "Author:" in line:
authorList = re.split(": ", line, 1)
try:
author = authorList[1]
author = author[0 : len(author) - 1]
authorFound = True
except:
print("Could not parse authorList = '%s'" % (line))
# Match the date line
elif line.startswith("Date:"):
dateList = re.split(": ", line, 1)
try:
date = dateList[1]
date = date[0 : len(date) - 1]
dateFound = True
except:
print("Could not parse dateList = '%s'" % (line))
# The Fossil-IDs are ignored:
elif line.startswith(" Fossil-ID:") or line.startswith(" [[SVN:"):
continue
# The svn-id lines are ignored
elif " git-svn-id:" in line:
continue
# The sign off line is ignored too
elif "Signed-off-by" in line:
continue
# Extract the actual commit message for this commit
elif authorFound & dateFound & messageFound == False:
# Find the commit message if we can
if len(line) == 1:
if messageNL:
messageFound = True
else:
messageNL = True
elif len(line) == 4:
messageFound = True
else:
if len(message) == 0:
message = message + line.strip()
else:
message = message + " " + line.strip()
# If this line is hit all of the files have been stored for this commit
elif re.search("files? changed", line):
filesFound = True
continue
# Collect the files for this commit. FIXME: Still need to add +/- to files
elif authorFound & dateFound & messageFound:
fileList = re.split(r" \| ", line, 2)
if len(fileList) > 1:
if len(files) > 0:
files = files + ", " + fileList[0].strip()
else:
files = fileList[0].strip()
# All of the parts of the commit have been found - write out the entry
if authorFound & dateFound & messageFound & filesFound:
# First the author line, only outputted if it is the first for that
# author on this day
authorLine = date + " " + author
if len(prevAuthorLine) == 0:
fout.write(authorLine + "\n\n")
elif authorLine == prevAuthorLine:
pass
else:
fout.write("\n" + authorLine + "\n\n")
# Assemble the actual commit message line(s) and limit the line length
# to 80 characters.
commitLine = "* " + files + ": " + message
# Write out the commit line
fout.write(wrapper.fill(commitLine) + "\n")
# Now reset all the variables ready for a new commit block.
authorFound = False
dateFound = False
messageFound = False
messageNL = False
message = ""
filesFound = False
files = ""
prevAuthorLine = authorLine
# Close the input and output lines now that we are finished.
fin.close()
fout.close()
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