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#
# backport_sources.py
#
# fixup the python sources to work with python2.5 and earlier
#
import os
import sys
def backportRequired():
try:
import setup_backport_probe
return False
except SyntaxError:
return True
def cmd_help( argv ):
progname = os.path.basename( argv[0] )
print( ''' Backport the PySVN sources to work with python 2.5 and earlier
python %(progname)s backport [<pysvn-folder>]
''' % {'progname': progname} )
def cmd_backport( argv ):
if len(argv) > 2:
pysvn_root = argv[2]
else:
pysvn_root = '..'
if os.path.exists( os.path.join( pysvn_root, '.svn' ) ):
print( 'Error: Cannot apply backport command to a subversion working copy - becuase of risk of backported files being committed.' )
return 1
all_files = []
walk( pysvn_root, all_files )
all_files.sort()
backported = 0
for filename in all_files:
if fixup_source( filename ):
backported += 1
if backported == 0:
print( 'Warning: Of %d candidate files no files required backporting' % len(all_files) )
else:
print( 'Info: Backported source for %d files' % backported )
return 0
def walk( dirname, all_files ):
for filename in os.listdir( dirname ):
filename = os.path.join( dirname, filename )
if os.path.isdir( filename ):
walk( filename, all_files )
elif filename.endswith( '.py' ):
all_files.append( filename )
elif filename.endswith( '.py.template' ):
all_files.append( filename )
def fixup_source( filename ):
f = open( filename, 'r' )
all_lines = f.readlines()
f.close()
replaced = False
for index in range( len( all_lines ) ):
if( all_lines[ index ].strip().startswith( 'except ' )
and ' as e:' in all_lines[ index ] ):
replaced = True
print( 'Info: processing %s' % filename )
print( 'Info: Before: %r' % all_lines[ index ] )
all_lines[ index ] = all_lines[ index ].replace( ' as e:', ', e:' )
print( 'Info: After: %r' % all_lines[ index ] )
if replaced:
print( 'Info: Updating %s' % filename )
f = open( filename, 'w' )
f.write( ''.join( all_lines ) )
f.close()
return replaced
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