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Commit a428b092 authored by Mitchell Wills's avatar Mitchell Wills
Browse files

Fix comment to reflect that the value passed to head is actually the size 

There is no functional change

Bug: 130257221
Test: generated an archive using the script and ran the result
Change-Id: I946f2827a9519873be2173fc50d9bc1cc46a326f
parent 0c4f577f

tools/generate-self-extracting-archive.py

+6 −6
Original line number Original line Diff line number Diff line
@@ -92,7 +92,7 @@ def _pipe_bytes(src, dst): 
    dst.write(b)

    dst.write(b)





_MAX_OFFSET_WIDTH = 20

_MAX_OFFSET_WIDTH = 20

def _generate_extract_command(start, end, extract_name):

def _generate_extract_command(start, size, extract_name):

  """Generate the extract command.

  """Generate the extract command.





  The length of this string must be constant no matter what the start and end

  The length of this string must be constant no matter what the start and end
@@ -101,7 +101,7 @@ def _generate_extract_command(start, end, extract_name): 




  Args:

  Args:

    start: offset in bytes of the start of the wrapped file

    start: offset in bytes of the start of the wrapped file

    end: offset in bytes of the end of the wrapped file

    size: size in bytes of the wrapped file

    extract_name: of the file to create when extracted

    extract_name: of the file to create when extracted





  """

  """
@@ -111,11 +111,11 @@ def _generate_extract_command(start, end, extract_name): 
  if len(start_str) != _MAX_OFFSET_WIDTH + 1:

  if len(start_str) != _MAX_OFFSET_WIDTH + 1:

    raise Exception('Start offset too large (%d)' % start)

    raise Exception('Start offset too large (%d)' % start)





  end_str = ('%d' % end).rjust(_MAX_OFFSET_WIDTH)

  size_str = ('%d' % size).rjust(_MAX_OFFSET_WIDTH)

  if len(end_str) != _MAX_OFFSET_WIDTH:

  if len(size_str) != _MAX_OFFSET_WIDTH:

    raise Exception('End offset too large (%d)' % end)

    raise Exception('Size too large (%d)' % size)





  return "tail -c %s $0 | head -c %s > %s\n" % (start_str, end_str, extract_name)

  return "tail -c %s $0 | head -c %s > %s\n" % (start_str, size_str, extract_name)









def main(argv):

def main(argv):