mirror of
https://github.com/kovidgoyal/calibre.git
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258 lines
9.1 KiB
Python
Executable File
258 lines
9.1 KiB
Python
Executable File
#!/usr/bin/env python
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"""
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Provides a command-line interface to the SONY Reader PRS-500.
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For usage information run the script.
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"""
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import StringIO, sys, time, os
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from optparse import OptionParser
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from libprs500 import VERSION
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from libprs500.communicate import PRS500Device
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from libprs500.terminfo import TerminalController
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from libprs500.errors import ArgumentError
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MINIMUM_COL_WIDTH = 12 #: Minimum width of columns in ls output
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def human_readable(size):
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""" Convert a size in bytes into a human readle form """
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if size < 1024: divisor, suffix = 1, ""
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elif size < 1024*1024: divisor, suffix = 1024., "K"
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elif size < 1024*1024*1024: divisor, suffix = 1024*1024, "M"
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elif size < 1024*1024*1024*1024: divisor, suffix = 1024*1024, "G"
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size = str(size/divisor)
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if size.find(".") > -1: size = size[:size.find(".")+2]
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return size + suffix
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class FileFormatter(object):
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def __init__(self, file, term):
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self.term = term
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self.is_dir = file.is_dir
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self.is_readonly = file.is_readonly
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self.size = file.size
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self.ctime = file.ctime
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self.wtime = file.wtime
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self.name = file.name
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self.path = file.path
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@apply
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def mode_string():
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doc=""" The mode string for this file. There are only two modes read-only and read-write """
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def fget(self):
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mode, x = "-", "-"
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if self.is_dir: mode, x = "d", "x"
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if self.is_readonly: mode += "r-"+x+"r-"+x+"r-"+x
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else: mode += "rw"+x+"rw"+x+"rw"+x
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return mode
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return property(**locals())
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@apply
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def name_in_color():
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doc=""" The name in ANSI text. Directories are blue, ebooks are green """
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def fget(self):
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cname = self.name
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blue, green, normal = "", "", ""
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if self.term: blue, green, normal = self.term.BLUE, self.term.GREEN, self.term.NORMAL
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if self.is_dir: cname = blue + self.name + normal
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else:
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ext = self.name[self.name.rfind("."):]
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if ext in (".pdf", ".rtf", ".lrf", ".lrx", ".txt"): cname = green + self.name + normal
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return cname
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return property(**locals())
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@apply
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def human_readable_size():
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doc=""" File size in human readable form """
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def fget(self):
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human_readable(self.size)
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return property(**locals())
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@apply
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def modification_time():
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doc=""" Last modified time in the Linux ls -l format """
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def fget(self):
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return time.strftime("%Y-%m-%d %H:%M", time.gmtime(self.wtime))
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return property(**locals())
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@apply
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def creation_time():
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doc=""" Last modified time in the Linux ls -l format """
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def fget(self):
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return time.strftime("%Y-%m-%d %H:%M", time.gmtime(self.ctime))
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return property(**locals())
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def info(dev):
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info = dev.get_device_information()
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print "Device name: ", info[0]
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print "Device version: ", info[1]
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print "Software version:", info[2]
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print "Mime type: ", info[3]
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def ls(dev, path, term, recurse=False, color=False, human_readable_size=False, ll=False, cols=0):
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def col_split(l, cols): # split list l into columns
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rows = len(l) / cols
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if len(l) % cols:
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rows += 1
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m = []
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for i in range(rows):
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m.append(l[i::rows])
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return m
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def row_widths(table): # Calculate widths for each column in the row-wise table
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tcols = len(table[0])
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rowwidths = [ 0 for i in range(tcols) ]
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for row in table:
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c = 0
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for item in row:
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rowwidths[c] = len(item) if len(item) > rowwidths[c] else rowwidths[c]
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c += 1
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return rowwidths
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output = StringIO.StringIO()
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if path.endswith("/"): path = path[:-1]
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dirs = dev.list(path, recurse)
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for dir in dirs:
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if recurse: print >>output, dir[0] + ":"
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lsoutput, lscoloutput = [], []
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files = dir[1]
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maxlen = 0
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if ll: # Calculate column width for size column
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for file in files:
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size = len(str(file.size))
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if human_readable_size:
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file = FileFormatter(file, term)
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size = len(file.human_readable_size)
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if size > maxlen: maxlen = size
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for file in files:
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file = FileFormatter(file, term)
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name = file.name
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lsoutput.append(name)
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if color: name = file.name_in_color
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lscoloutput.append(name)
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if ll:
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size = str(file.size)
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if human_readable_size: size = file.human_readable_size
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print >>output, file.mode_string, ("%"+str(maxlen)+"s")%size, file.modification_time, name
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if not ll and len(lsoutput) > 0:
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trytable = []
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for colwidth in range(MINIMUM_COL_WIDTH, cols):
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trycols = int(cols/colwidth)
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trytable = col_split(lsoutput, trycols)
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works = True
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for row in trytable:
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row_break = False
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for item in row:
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if len(item) > colwidth - 1:
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works, row_break = False, True
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break
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if row_break: break
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if works: break
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rowwidths = row_widths(trytable)
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trytablecol = col_split(lscoloutput, len(trytable[0]))
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for r in range(len(trytable)):
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for c in range(len(trytable[r])):
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padding = rowwidths[c] - len(trytable[r][c])
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print >>output, trytablecol[r][c], "".ljust(padding),
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print >>output
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print >>output
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listing = output.getvalue().rstrip()+ "\n"
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output.close()
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return listing
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def main():
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term = TerminalController()
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cols = term.COLS
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parser = OptionParser(usage="usage: %prog [options] command args\n\ncommand is one of: info, df, ls, cp, cat or rm\n\n"+
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"For help on a particular command: %prog command", version="libprs500 version: " + VERSION)
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parser.add_option("--log-packets", help="print out packet stream to stdout", dest="log_packets", action="store_true", default=False)
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parser.remove_option("-h")
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parser.disable_interspersed_args() # Allow unrecognized options
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options, args = parser.parse_args()
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if len(args) < 1:
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parser.print_help()
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sys.exit(1)
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command = args[0]
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args = args[1:]
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dev = PRS500Device(log_packets=options.log_packets)
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if command == "df":
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dev.open()
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data = dev.available_space()
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dev.close()
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print "Filesystem\tSize \tUsed \tAvail \tUse%"
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for datum in data:
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total, free, used, percent = human_readable(datum[2]), human_readable(datum[1]), human_readable(datum[2]-datum[1]), \
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str(0 if datum[2]==0 else int(100*(datum[2]-datum[1])/(datum[2]*1.)))+"%"
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print "%-10s\t%s\t%s\t%s\t%s"%(datum[0], total, used, free, percent)
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elif command == "ls":
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parser = OptionParser(usage="usage: %prog ls [options] path\n\npath must begin with /,a:/ or b:/")
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parser.add_option("--color", help="show ls output in color", dest="color", action="store_true", default=False)
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parser.add_option("-l", help="In addition to the name of each file, print the file type, permissions, and timestamp (the modification time unless other times are selected)", dest="ll", action="store_true", default=False)
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parser.add_option("-R", help="Recursively list subdirectories encountered. /dev and /proc are omitted", dest="recurse", action="store_true", default=False)
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parser.remove_option("-h")
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parser.add_option("-h", "--human-readable", help="show sizes in human readable format", dest="hrs", action="store_true", default=False)
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options, args = parser.parse_args(args)
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if len(args) < 1:
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parser.print_help()
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sys.exit(1)
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dev.open()
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try:
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print ls(dev, args[0], term, color=options.color, recurse=options.recurse, ll=options.ll, human_readable_size=options.hrs, cols=cols),
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except ArgumentError, e:
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print >> sys.stderr, e
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sys.exit(1)
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finally:
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dev.close()
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elif command == "info":
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dev.open()
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try:
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info(dev)
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finally: dev.close()
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elif command == "cp":
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parser = OptionParser(usage="usage: %prog cp [options] source destination\n\nsource is a path on the device and must begin with /,a:/ or b:/"+
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"\n\ndestination is a path on your computer and can point to either a file or a directory")
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options, args = parser.parse_args(args)
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if len(args) < 2:
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parser.print_help()
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sys.exit(1)
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if args[0].endswith("/"): path = args[0][:-1]
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else: path = args[0]
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outfile = args[1]
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if os.path.isdir(outfile):
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outfile = os.path.join(outfile, path[path.rfind("/")+1:])
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outfile = open(outfile, "w")
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dev.open()
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try:
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dev.get_file(path, outfile)
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except ArgumentError, e:
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print >>sys.stderr, e
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finally:
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dev.close()
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outfile.close()
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elif command == "cat":
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outfile = sys.stdout
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parser = OptionParser(usage="usage: %prog cat path\n\npath should point to a file on the device and must begin with /,a:/ or b:/")
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options, args = parser.parse_args(args)
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if len(args) < 1:
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parser.print_help()
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sys.exit(1)
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if args[0].endswith("/"): path = args[0][:-1]
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else: path = args[0]
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outfile = sys.stdout
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dev.open()
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try:
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dev.get_file(path, outfile)
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except ArgumentError, e:
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print >>sys.stderr, e
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finally:
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dev.close()
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else:
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parser.print_help()
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sys.exit(1)
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if __name__ == "__main__":
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main()
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