From a6d474471dddc2d7a187a66358aafcb86235ca69 Mon Sep 17 00:00:00 2001
From: Lars-Dominik Braun <lars@6xq.net>
Date: Sat, 21 Jan 2017 11:24:56 +0100
Subject: Restructure git

Move tools into separate repo, split TTL file.
---
 tools/extractArchive.py | 110 ------------------------------------------------
 1 file changed, 110 deletions(-)
 delete mode 100755 tools/extractArchive.py

(limited to 'tools/extractArchive.py')

diff --git a/tools/extractArchive.py b/tools/extractArchive.py
deleted file mode 100755
index f14a6b6..0000000
--- a/tools/extractArchive.py
+++ /dev/null
@@ -1,110 +0,0 @@
-#!/usr/bin/env python3
-
-"""
-Extract linearized (see linearizeDisk.py) EUMEL archive disk.
-"""
-
-import struct, sys, io, logging
-import codecs
-from eumel import Dataspace
-
-def take (it, n):
-    for i in range (n):
-        yield next (it)
-
-def parseEntry (blocks):
-    while True:
-        header = next (blocks)
-        unknown1, unknown2, length, unknown3 = struct.unpack ('<HHHH', header[:8])
-        logging.debug ('Got dataspace with {} blocks'.format (length))
-        yield b''.join (take (blocks, length))
-
-def readBlocks (fd):
-    while True:
-        buf = fd.read (512)
-        if not buf:
-            break
-        yield buf
-
-class FileHeaderDataspace (Dataspace):
-    TYPE = 0
-
-    def __init__ (self, fd):
-        Dataspace.__init__ (self, fd)
-        self.name = self.parseText ()
-        self.mtime = self.parseText ()
-        self.seek (0x40)
-        self.parseHeap ()
-
-if __name__ == '__main__':
-    import argparse, sys, codecs, os
-    from datetime import datetime
-    from io import BytesIO
-    from eumel import pagesize
-    
-    parser = argparse.ArgumentParser(description='Extract EUMEL disk archive.')
-    parser.add_argument ('-f', '--force', help='Overwrite existing files', action='store_true')
-    parser.add_argument ('-o', '--output', help='Output directory, defaults to archive name')
-    parser.add_argument ('-v', '--verbose', help='Enable debugging messages', action='store_true')
-    parser.add_argument ('-n', '--number', help='Number files based on their position in the archive',
-            action='store_true')
-    parser.add_argument ('file', help='Input file')
-    args = parser.parse_args ()
-
-    if args.verbose:
-        logging.basicConfig (level=logging.DEBUG)
-    else:
-        logging.basicConfig (level=logging.INFO)
-
-    with open (args.file, 'rb') as infd:
-        entries = parseEntry (readBlocks (infd))
-
-        # first entry is always disk info
-        diskinfo = FileHeaderDataspace (BytesIO (next (entries)))
-        if not args.output:
-            args.output = codecs.decode (diskinfo.name, 'eumel', 'replace')
-            logging.debug ('Using disk name {} as output directory'.format (args.output))
-
-        # create output dir
-        try:
-            os.makedirs (args.output)
-        except FileExistsError:
-            pass
-
-        i = 1
-        while True:
-            # file header dataspace
-            fileheader = FileHeaderDataspace (BytesIO (next (entries)))
-            filename = codecs.decode (fileheader.name, 'eumel', 'replace').replace ('/', '-')
-            if len (filename) == 0:
-                logging.debug ('Filename was empty, i.e. last item in archive. I’m done')
-                break
-            try:
-                mtime = datetime.strptime (codecs.decode (fileheader.mtime, 'eumel', 'replace'), '%d.%m.%y')
-            except ValueError as e:
-                logging.warning ('Cannot parse date of file {}, {}'.format (filename, e))
-                mtime = datetime.now ()
-            logging.debug ('Got file {}, last modified {}'.format (filename, mtime))
-
-            # actual file contents
-            e = next (entries)
-
-            # quirks: if the first page starts with a magic sequence, skip it.
-            # Not sure what it is used for.
-            if e.startswith (2*b'\x30\x00\x00\x00'):
-                logging.debug ('skipping quirks')
-                e = e[pagesize:]
-
-            if args.number:
-                filename = '{:03d}_{}'.format (i, filename)
-            outfile = os.path.join (args.output, filename)
-            if os.path.exists (outfile) and not args.force:
-                logging.info ('File {} exists, skipping'.format (outfile))
-                continue
-            logging.info ('Extracting {} bytes to file {}'.format (len (e), outfile))
-            with open (outfile, 'wb') as outfd:
-                outfd.write (e)
-            stamp = mtime.timestamp ()
-            os.utime (outfile, (stamp, stamp))
-            i += 1
-
-- 
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