llvm-project/lldb/utils/git-svn/convert.py

66 lines
1.8 KiB
Python
Executable File

#!/usr/bin/env python
"""
Convert the raw message sources from git patch emails to git-am friendly files.
Usage:
1. Mail.app -> Save As -> api.eml (Raw Message Source)
2. .../convert.py api.eml
3. git am [--signoff] < api.eml
4. git svn dcommit [--commit-url https://id@llvm.org/svn/llvm-project/lldb/trunk]
"""
import os, re, sys
import StringIO
def usage(problem_file=None):
if problem_file:
print "%s is not a file" % problem_file
print "Usage: convert.py raw-message-source [raw-message-source2 ...]"
sys.exit(0)
def do_convert(file):
"""Skip all preceding mail message headers until 'From: ' is encountered.
Then for each line ('From: ' header included), replace the dos style CRLF
end-of-line with unix style LF end-of-line.
"""
print "converting %s ..." % file
with open(file, 'r') as f_in:
content = f_in.read()
# The new content to be written back to the same file.
new_content = StringIO.StringIO()
# Boolean flag controls whether to start printing lines.
from_header_seen = False
# By default, splitlines() don't include line breaks. CRLF should be gone.
for line in content.splitlines():
# Wait till we scan the 'From: ' header before start printing the lines.
if not from_header_seen:
if not line.startswith('From: '):
continue
else:
from_header_seen = True
print >> new_content, line
with open(file, 'w') as f_out:
f_out.write(new_content.getvalue())
print "done"
def main():
if len(sys.argv) == 1:
usage()
# Convert the raw message source one by one.
for file in sys.argv[1:]:
if not os.path.isfile(file):
usage(file)
do_convert(file)
if __name__ == '__main__':
main()