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Diffstat (limited to 'gr-run-waveform/gen-xyzzy')
| -rw-r--r-- | gr-run-waveform/gen-xyzzy | 192 |
1 files changed, 0 insertions, 192 deletions
diff --git a/gr-run-waveform/gen-xyzzy b/gr-run-waveform/gen-xyzzy deleted file mode 100644 index 955d24798..000000000 --- a/gr-run-waveform/gen-xyzzy +++ /dev/null @@ -1,192 +0,0 @@ -#!/usr/bin/env python - -""" - usage: gen-xyzzy [-o output] directory... - - Typical usage: - gen-xyzzy -o filesystem.dat /usr/share/guile/1.8 /usr/local/share/guile/site - - Where /usr/share/guile points to the system guile installation and - /usr/local/share/guile/site points to the GNU Radio installed guile files - - - Build a single file that contains all of the *.scm files from the - guile installation and from the GR installation. I figure it's - basically a table that maps strings to strings. That is, - "/foo/bar/filename" -> "file contents". We could just mmap - it in read-only, or just read it in. Reading is more portable, - let's do that. - - File: [ header | directory | strings ] - - All integers are net-endian. - - struct header { - char magic[8]; - - uint32_t offset_to_directory; // byte offset from start of file - uint32_t size_of_directory; // bytes - uint32_t number_of_dir_entries; - - uint32_t offset_to_strings; // byte offset from start of file - uint32_t size_of_strings; // bytes - }; - - struct directory_entry { - uint32_t offset_to_name; // from start of strings - uint32_t offset_to_contents; // from start of strings - } - - Each string starts with a uint32_t length, followed by length bytes. - There is no trailing \0 in the string. Each string entry is followed - with enough padding to bring it up to a multiple of 4 bytes. - - struct string_entry { - uint32_t length; - unsigned char c[1]; // 0 is nicer, but not portable. - } -""" - - -from optparse import OptionParser -import sys -import os -import os.path -from pprint import pprint -import struct - - -def main(): - parser = OptionParser(usage="usage: %prog [options] directory...") - parser.add_option("-o", type="string", default=None, metavar="FILENAME", - help="Specify output filename [default=stdout]") - (options, args) = parser.parse_args() - - if len(args) == 0: - parser.print_help() - raise SystemExit, 1 - - if options.o: - output = open(options.o, 'wb') - else: - output = sys.stdout - - doit(output, args) - - -def doit(output, dirs): - acc = [] - for d in dirs: - acc.extend(handle_dir(d)) - - uniq = {} - for key, val in acc: - if key in uniq: - if val != uniq[key]: - sys.stderr.write("Duplicate key: %s %s %s\n" % (key, uniq[key], val)) - else: - uniq[key] = val - - t = uniq.items() - t.sort() - write_xyzzy(output, t) - - -def handle_dir(directory): - if not directory.endswith(os.sep): - directory = directory + os.sep - acc = [] - for root, dirs, files in os.walk(directory, topdown=True): - # scm_files = [f for f in files if f.endswith('.scm')] - scm_files = files - for f in scm_files: - full_name = os.path.join(root, f) - t = (full_name[len(directory):], full_name) - acc.append(t) - return acc - - -def file_length(filename): - statinfo = os.stat(filename) - return statinfo.st_size - - -# return n rounded up to a multiple of 4 -def round_up(n): - return (n + 3) & -4 - - -class string_table(object): - def __init__(self): - self._table = '' - self._padding = '\0\0\0\0' - - def add_string(self, s): - r = len(self._table) - len_s = len(s) - padding = self._padding[0:round_up(len_s) - len_s] - self._table = ''.join((self._table, struct.pack('>I', len(s)), s, padding)) - return r - - -def write_xyzzy(f, list_of_tuples): - # tuples: (name, filename) - names = [s[0] for s in list_of_tuples] - number_of_dir_entries = len(list_of_tuples) - number_of_names = number_of_dir_entries - number_of_files = number_of_dir_entries - sizeof_uint32 = 4 - - contents = {} - for name, filename in list_of_tuples: - t = open(filename, 'rb').read() - contents[name] = t - - offset_to_directory = 28 - size_of_directory = number_of_dir_entries * 8 - offset_to_strings = offset_to_directory + size_of_directory - - st = string_table() - - # Insert names in string table first to help locality - name_str_offset = {} - for name in names: - name_str_offset[name] = st.add_string(name) - - # Now add file contents - content_str_offset = {} - for name in names: - content_str_offset[name] = st.add_string(contents[name]) - - size_of_strings = len(st._table) - - if 0: - print "offset_to_directory\t", offset_to_directory - print "size_of_directory\t", size_of_directory - print "number_of_dir_entries\t", number_of_dir_entries - print "offset_to_strings\t", offset_to_strings - print "size_of_strings\t\t", size_of_strings - - magic = '-XyZzY-\0' - - # Write header - f.write(struct.pack('>8s5I', - magic, - offset_to_directory, - size_of_directory, - number_of_dir_entries, - offset_to_strings, - size_of_strings)) - - # Write directory - for name in names: - f.write(struct.pack('>2I', - name_str_offset[name], - content_str_offset[name])) - - # Write string table - f.write(st._table) - - -if __name__ == "__main__": - main() |