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https://github.com/dhewm/dhewm3.git
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240 lines
6.6 KiB
Python
240 lines
6.6 KiB
Python
# a collection of utility functions to manipulate pak files
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import os, zipfile, md5, pdb
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# sorts in reverse alphabetical order like doom does for searching
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def list_paks( path ):
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files = os.listdir( path )
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for i in files:
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if ( i[-4:] != '.pk4' ):
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files.remove( i )
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files.sort()
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files.reverse()
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return files
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def list_files_in_pak( pak ):
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files = []
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zippy = zipfile.ZipFile( pak )
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files += zippy.namelist()
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files.sort()
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return files
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# no sorting, blunt list of everything
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def list_files_in_paks( path ):
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files = []
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zippies = list_paks( path )
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for fname in zippies:
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print fname
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zippy = zipfile.ZipFile( os.path.join( path, fname ) )
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files += zippy.namelist()
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# sort and remove dupes
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dico = {}
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for f in files:
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dico[ f ] = 1
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files = dico.keys()
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files.sort()
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return files
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# build a dictionary of names -> ( pak name, md5 ) from a path of pk4s
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def md5_in_paks( path ):
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ret = {}
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zippies = list_paks( path )
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for fname in zippies:
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print fname
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zippy = zipfile.ZipFile( os.path.join( path, fname ) )
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for file in zippy.namelist():
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if ( ret.has_key( file ) ):
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continue
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data = zippy.read( file )
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m = md5.new()
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m.update( data )
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ret[ file ] = ( fname, m.hexdigest() )
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return ret
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# find which files need to be updated in a set of paks from an expanded list
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# returns ( updated, not_found, {} )
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# ignores directories
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# by default, no case match is done
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# if case match is set, return ( updated, not_found, { zip case -> FS case } )
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# updated will contain the zip case name
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def list_updated_files( pak_path, base_path, case_match = False ):
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not_found = []
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updated = []
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case_table = {}
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pak_md5 = md5_in_paks( pak_path )
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for file in pak_md5.keys():
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if ( file[-1] == '/' ):
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continue
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path = os.path.join( base_path, file )
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if ( case_match ):
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ret = ifind( base_path, file )
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if ( not ret[ 0 ] ):
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not_found.append( file )
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continue
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else:
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case_table[ path ] = ret[ 1 ]
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path = os.path.join( base_path, ret[ 1 ] )
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try:
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f = open( path )
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data = f.read()
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f.close()
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except:
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if ( case_match ):
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raise "internal error: ifind success but later read failed"
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not_found.append( file )
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else:
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m = md5.new()
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m.update( data )
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if ( m.hexdigest() != pak_md5[ file ][ 1 ] ):
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print file
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updated.append( file )
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return ( updated, not_found, case_table )
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# find which files are missing in the expanded path, and extract the directories
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# returns ( files, dirs, missing )
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def status_files_for_path( path, infiles ):
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files = []
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dirs = []
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missing = []
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for i in infiles:
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test_path = os.path.join( path, i )
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if ( os.path.isfile( test_path ) ):
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files.append( i )
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elif ( os.path.isdir( test_path ) ):
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dirs.append( i )
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else:
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missing.append( i )
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return ( files, dirs, missing )
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# build a pak from a base path and a list of files
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def build_pak( pak, path, files ):
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zippy = zipfile.ZipFile( pak, 'w', zipfile.ZIP_DEFLATED )
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for i in files:
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source_path = os.path.join( path, i )
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print source_path
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zippy.write( source_path, i )
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zippy.close()
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# process the list of files after a run to update media
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# dds/ -> verify all the .dds are present in zip ( case insensitive )
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# .wav -> verify that all .wav have a .ogg version in zip ( case insensitive )
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# .tga not in dds/ -> try to find a .dds for them
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# work from a list of files, and a path to the base pak files
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# files: text files with files line by line
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# pak_path: the path to the pak files to compare against
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# returns: ( [ missing ], [ bad ] )
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# bad are files the function didn't know what to do about ( bug )
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# missing are lowercased of all the files that where not matched in build
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# the dds/ ones are all forced to .dds extension
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# missing .wav are returned in the missing list both as .wav and .ogg
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# ( that's handy when you need to fetch next )
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def check_files_against_build( files, pak_path ):
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pak_list = list_files_in_paks( pak_path )
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# make it lowercase
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tmp = []
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for i in pak_list:
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tmp.append( i.lower() )
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pak_list = tmp
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# read the files and make them lowercase
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f = open( files )
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check_files = f.readlines()
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f.close()
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tmp = []
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for i in check_files:
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s = i.lower()
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s = s.replace( '\n', '' )
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s = s.replace( '\r', '' )
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tmp.append( s )
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check_files = tmp
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# start processing
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bad = []
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missing = []
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for i in check_files:
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if ( i[ :4 ] == 'dds/' ):
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if ( i[ len(i)-4: ] == '.tga' ):
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i = i[ :-4 ] + '.dds'
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elif ( i[ len(i)-4: ] != '.dds' ):
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print 'File not understood: ' + i
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bad.append( i )
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continue
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try:
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pak_list.index( i )
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except:
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print 'Not found: ' + i
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missing.append( i )
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elif ( i[ len(i)-4: ] == '.wav' ):
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i = i[ :-4 ] + '.ogg'
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try:
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pak_list.index( i )
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except:
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print 'Not found: ' + i
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missing.append( i )
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missing.append( i[ :-4 ] + '.wav' )
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elif ( i[ len(i)-4: ] == '.tga' ):
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# tga, not from dds/
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try:
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pak_list.index( i )
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except:
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print 'Not found: ' + i
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missing.append( i )
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i = 'dds/' + i[ :-4 ] + '.dds'
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print 'Add dds : ' + i
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missing.append( i )
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else:
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try:
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pak_list.index( i )
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except:
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print 'Not found: ' + i
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missing.append( i )
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return ( missing, bad )
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# match a path to a file in a case insensitive way
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# return ( True/False, 'walked up to' )
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def ifind( base, path ):
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refpath = path
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path = os.path.normpath( path )
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path = os.path.normcase( path )
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# early out just in case
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if ( os.path.exists( path ) ):
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return ( True, path )
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head = path
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components = []
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while ( len( head ) ):
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( head, chunk ) = os.path.split( head )
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components.append( chunk )
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#print 'head: %s - components: %s' % ( head, repr( components ) )
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components.reverse()
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level = 0
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for root, dirs, files in os.walk( base, topdown = True ):
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if ( level < len( components ) - 1 ):
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#print 'filter dirs: %s' % repr( dirs )
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dirs_del = []
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for i in dirs:
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if ( not i.lower() == components[ level ].lower() ):
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dirs_del.append( i )
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for i in dirs_del:
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dirs.remove( i )
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level += 1
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# we assume there is never going to be 2 dirs with only case difference
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if ( len( dirs ) != 1 ):
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#print '%s: ifind failed dirs matching at %s - dirs: %s' % ( refpath, root, repr( dirs ) )
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return ( False, root[ len( base ) + 1: ] )
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else:
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# must find the file here
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for i in files:
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if ( i.lower() == components[-1].lower() ):
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return ( True, os.path.join( root, i )[ len( base ) + 1: ] )
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return ( False, root[ len( base ) + 1: ] )
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# do case insensitive FS search on files list
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# return [ cased files, not found (unmodified ) ]
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def ifind_list( base, files ):
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cased = []
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notfound = []
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for i in files:
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ret = ifind( base, i )
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if ( ret[ 0 ] ):
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cased.append( ret[ 1 ] )
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else:
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notfound.append( i )
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return [ cased, notfound ]
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