mirror of
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cbc163de28
On Windows, the various bundle hexdumps were being truncated at the first occurrence of 0x1a. The line endings in the sequence generation then needs to be standardized on LF so that the file is the same for the tool tests.
159 lines
5.9 KiB
Python
Executable File
159 lines
5.9 KiB
Python
Executable File
#!/usr/bin/env python
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"""
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Utility for inspecting files in various ways.
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This tool is like the collection of tools found in a unix environment but are
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cross platform and stable and suitable for our needs in the test suite.
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This can be used instead of tools like:
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[
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dd
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find
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head
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hexdump
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ls
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md5sum
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readlink
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sha1sum
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stat
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tail
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test
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readlink.py
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md5sum.py
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"""
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import sys, os, errno, re, glob, optparse
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def visit(opts, filenames, outfile):
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"""Process filenames in the way specified in opts, writing output to
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outfile."""
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for f in sorted(filenames):
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isstdin = f == '-'
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if not isstdin and not os.path.lexists(f):
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outfile.write('%s: file not found\n' % f)
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continue
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quiet = opts.quiet and not opts.recurse or isstdin
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isdir = os.path.isdir(f)
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islink = os.path.islink(f)
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isfile = os.path.isfile(f) and not islink
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dirfiles = None
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content = None
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facts = []
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if isfile:
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if opts.type:
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facts.append('file')
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if opts.hexdump or opts.dump or opts.md5:
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content = file(f, 'rb').read()
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elif islink:
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if opts.type:
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facts.append('link')
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content = os.readlink(f)
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elif isstdin:
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content = sys.stdin.read()
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if opts.size:
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facts.append('size=%s' % len(content))
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elif isdir:
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if opts.recurse or opts.type:
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dirfiles = glob.glob(f + '/*')
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facts.append('directory with %s files' % len(dirfiles))
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elif opts.type:
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facts.append('type unknown')
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if not isstdin:
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stat = os.lstat(f)
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if opts.size and not isdir:
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facts.append('size=%s' % stat.st_size)
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if opts.mode and not islink:
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facts.append('mode=%o' % (stat.st_mode & 0777))
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if opts.links:
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facts.append('links=%s' % stat.st_nlink)
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if opts.newer:
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# mtime might be in whole seconds so newer file might be same
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if stat.st_mtime >= os.stat(opts.newer).st_mtime:
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facts.append('newer than %s' % opts.newer)
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else:
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facts.append('older than %s' % opts.newer)
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if opts.md5 and content is not None:
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try:
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from hashlib import md5
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except ImportError:
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from md5 import md5
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facts.append('md5=%s' % md5(content).hexdigest()[:opts.bytes])
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if opts.sha1 and content is not None:
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try:
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from hashlib import sha1
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except ImportError:
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from sha import sha as sha1
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facts.append('sha1=%s' % sha1(content).hexdigest()[:opts.bytes])
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if isstdin:
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outfile.write(', '.join(facts) + '\n')
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elif facts:
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outfile.write('%s: %s\n' % (f, ', '.join(facts)))
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elif not quiet:
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outfile.write('%s:\n' % f)
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if content is not None:
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chunk = content
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if not islink:
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if opts.lines:
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if opts.lines >= 0:
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chunk = ''.join(chunk.splitlines(True)[:opts.lines])
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else:
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chunk = ''.join(chunk.splitlines(True)[opts.lines:])
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if opts.bytes:
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if opts.bytes >= 0:
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chunk = chunk[:opts.bytes]
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else:
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chunk = chunk[opts.bytes:]
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if opts.hexdump:
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for i in range(0, len(chunk), 16):
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s = chunk[i:i+16]
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outfile.write('%04x: %-47s |%s|\n' %
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(i, ' '.join('%02x' % ord(c) for c in s),
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re.sub('[^ -~]', '.', s)))
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if opts.dump:
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if not quiet:
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outfile.write('>>>\n')
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outfile.write(chunk)
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if not quiet:
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if chunk.endswith('\n'):
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outfile.write('<<<\n')
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else:
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outfile.write('\n<<< no trailing newline\n')
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if opts.recurse and dirfiles:
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assert not isstdin
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visit(opts, dirfiles, outfile)
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if __name__ == "__main__":
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parser = optparse.OptionParser("%prog [options] [filenames]")
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parser.add_option("-t", "--type", action="store_true",
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help="show file type (file or directory)")
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parser.add_option("-m", "--mode", action="store_true",
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help="show file mode")
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parser.add_option("-l", "--links", action="store_true",
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help="show number of links")
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parser.add_option("-s", "--size", action="store_true",
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help="show size of file")
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parser.add_option("-n", "--newer", action="store",
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help="check if file is newer (or same)")
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parser.add_option("-r", "--recurse", action="store_true",
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help="recurse into directories")
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parser.add_option("-S", "--sha1", action="store_true",
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help="show sha1 hash of the content")
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parser.add_option("-M", "--md5", action="store_true",
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help="show md5 hash of the content")
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parser.add_option("-D", "--dump", action="store_true",
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help="dump file content")
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parser.add_option("-H", "--hexdump", action="store_true",
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help="hexdump file content")
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parser.add_option("-B", "--bytes", type="int",
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help="number of characters to dump")
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parser.add_option("-L", "--lines", type="int",
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help="number of lines to dump")
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parser.add_option("-q", "--quiet", action="store_true",
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help="no default output")
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(opts, filenames) = parser.parse_args(sys.argv[1:])
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if not filenames:
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filenames = ['-']
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visit(opts, filenames, sys.stdout)
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