Add several more collected scripts

9 files changed, 1396 insertions, 0 deletions

diff --git a/cli/cleanup-maildir.py b/cli/cleanup-maildir.py
new file mode 100755
index 0000000..e109ea4
--- /dev/null
+++ b/cli/cleanup-maildir.py
@@ -0,0 +1,533 @@
+#!/usr/bin/python -tt
+#
+# Copyright 2004-2006 Nathaniel W. Turner <nate@houseofnate.net>
+#
+# Permission is hereby granted, free of charge, to any person
+# obtaining a copy of this software and associated documentation
+# files (the "Software"), to deal in the Software without
+# restriction, including without limitation the rights to use,
+# copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the
+# Software is furnished to do so, subject to the following
+# conditions:
+#
+# The above copyright notice and this permission notice shall be
+# included in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+# OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+# OTHER DEALINGS IN THE SOFTWARE.
+
+"""
+USAGE
+  cleanup-maildir [OPTION].. COMMAND FOLDERNAME..
+
+DESCRIPTION
+  Cleans up old messages in FOLDERNAME; the exact action taken
+  depends on COMMAND.  (See next section.)
+      Note that FOLDERNAME is a name such as 'Drafts', and the
+  corresponding maildir path is determined using the values of
+  maildir-root, folder-prefix, and folder-seperator.
+
+COMMANDS
+  archive - move old messages to subfolders based on message date
+  trash   - move old message to trash folder
+  delete  - permanently delete old messages
+
+OPTIONS
+  -h, --help
+      Show this help.
+  -q, --quiet
+      Suppress normal output.
+  -v, --verbose
+      Output extra information for testing.
+  -n, --trial-run
+      Do not actually touch any files; just say what would be done.
+  -a, --age=N
+      Only touch messages older than N days.  Default is 14 days.
+  -k, --keep-flagged-threads
+      If any messages in a thread are flagged, do not touch them or
+      any other messages in that thread.
+      Note: the thread-detection mechanism is currently base purely on
+      a message's subject.  The In-Reply-To header is not currently used.
+  -r, --keep-read
+      If any messages are flagged as READ, do not touch them.
+  -t, --trash-folder=F
+      Use F as trash folder when COMMAND is 'trash'.
+      Default is 'Trash'.
+  --archive-folder=F
+      Use F as the base for constructing archive folders.  For example, if F is
+      'Archive', messages from 2004 might be put in the folder 'Archive.2004'.
+  -d, --archive-hierarchy-depth=N
+      Specify number of subfolders in archive hierarchy; 1 is just
+      the year, 2 is year/month (default), 3 is year/month/day.
+  --maildir-root=F
+      Specifies folder that contains mail folders.
+      Default is "$HOME/Maildir".
+  --folder-seperator=str
+      Folder hierarchy seperator.  Default is '.'
+  --folder-prefix=str
+      Folder prefix.  Default is '.'
+
+NOTES
+  The following form is accepted for backwards compatibility, but is deprecated:
+  cleanup-maildir --mode=COMMAND [OPTION].. FOLDERNAME..
+
+EXAMPLES
+  # Archive messages in 'Sent Items' folder over 30 days old
+  cleanup-maildir --age=30 archive 'Sent Items'" 
+
+  # Delete messages over 2 weeks old in 'Lists/debian-devel' folder,
+  # except messages that are part of a thread containing a flagged message.
+  cleanup-maildir --keep-flagged-threads trash 'Lists.debian-devel'
+"""
+
+__version__ = "0.3.0"
+# $Id$
+# $URL$
+
+import mailbox
+import os.path
+import os
+import rfc822
+import string
+import socket
+import time
+import logging
+import sys
+import getopt
+
+
+def mkMaildir(path):
+    """Make a Maildir structure rooted at 'path'"""
+    os.mkdir(path, 0700)
+    os.mkdir(os.path.join(path, 'tmp'), 0700)
+    os.mkdir(os.path.join(path, 'new'), 0700)
+    os.mkdir(os.path.join(path, 'cur'), 0700)
+
+
+class MaildirWriter(object):
+
+    """Deliver messages into a Maildir"""
+
+    path = None
+    counter = 0
+
+    def __init__(self, path=None):
+        """Create a MaildirWriter that manages the Maildir at 'path'
+
+        Arguments:
+        path -- if specified, used as the default Maildir for this object
+        """
+        if path != None:
+            if not os.path.isdir(path):
+                raise ValueError, 'Path does not exist: %s' % path
+            self.path = path
+        self.logger = logging.getLogger('MaildirWriter')
+
+    def deliver(self, msg, path=None):
+        """Deliver a message to a Maildir
+
+        Arguments:
+        msg -- a message object
+        path -- the path of the Maildir; if None, uses default from __init__
+        """
+        if path != None:
+            self.path = path
+        if self.path == None or not os.path.isdir(self.path):
+            raise ValueError, 'Path does not exist'
+        tryCount = 1
+        srcFile = msg.getFilePath();
+        (dstName, tmpFile, newFile, dstFile) = (None, None, None, None)
+        while 1:
+            try:
+                dstName = "%d.%d_%d.%s" % (int(time.time()), os.getpid(), 
+                                           self.counter, socket.gethostname())
+                tmpFile = os.path.join(os.path.join(self.path, "tmp"), dstName)
+                newFile = os.path.join(os.path.join(self.path, "new"), dstName)
+                self.logger.debug("deliver: attempt copy %s to %s" %
+                              (srcFile, tmpFile))
+                os.link(srcFile, tmpFile) # Copy into tmp
+                self.logger.debug("deliver: attempt link to %s" % newFile)
+                os.link(tmpFile, newFile) # Link into new
+            except OSError, (n, s):
+                self.logger.critical(
+                        "deliver failed: %s (src=%s tmp=%s new=%s i=%d)" % 
+                        (s, srcFile, tmpFile, newFile, tryCount))
+                self.logger.info("sleeping")
+                time.sleep(2)
+                tryCount += 1
+                self.counter += 1
+                if tryCount > 10:
+                    raise OSError("too many failed delivery attempts")
+            else:
+                break
+
+        # Successful delivery; increment deliver counter
+        self.counter += 1
+
+        # For the rest of this method we are acting as an MUA, not an MDA.
+
+        # Move message to cur and restore any flags
+        dstFile = os.path.join(os.path.join(self.path, "cur"), dstName)
+        if msg.getFlags() != None:
+            dstFile += ':' + msg.getFlags()
+        self.logger.debug("deliver: attempt link to %s" % dstFile)
+        os.link(newFile, dstFile)
+        os.unlink(newFile)
+
+        # Cleanup tmp file
+        os.unlink(tmpFile)
+
+
+class MessageDateError(TypeError):
+    """Indicate that the message date was invalid"""
+    pass
+
+
+class MaildirMessage(rfc822.Message):
+    
+    """An email message
+
+    Has extra Maildir-specific attributes
+    """
+
+    def getFilePath(self):
+        if sys.hexversion >= 0x020500F0:
+            return self.fp._file.name
+        else:
+            return self.fp.name
+
+    def isFlagged(self):
+        """return true if the message is flagged as important"""
+        import re
+        fname = self.getFilePath()
+        if re.search(r':.*F', fname) != None:
+            return True
+        return False
+
+    def getFlags(self):
+        """return the flag part of the message's filename"""
+        parts = self.getFilePath().split(':')
+        if len(parts) == 2:
+            return parts[1]
+        return None
+
+    def isNew(self):
+        """return true if the message is marked as unread"""
+        # XXX should really be called isUnread
+        import re
+        fname = self.getFilePath()
+        if re.search(r':.*S', fname) != None:
+            return False
+        return True
+
+    def getSubject(self):
+        """get the message's subject as a unicode string"""
+
+        import email.Header
+        s = self.getheader("Subject")
+        try:
+            return u"".join(map(lambda x: x[0].decode(x[1] or 'ASCII', 'replace'),
+                                email.Header.decode_header(s)))
+        except(LookupError):
+            return s
+
+    def getSubjectHash(self):
+        """get the message's subject in a "normalized" form
+
+        This currently means lowercasing and removing any reply or forward
+        indicators.
+        """
+        import re
+        import string
+        s = self.getSubject()
+        if s == None:
+            return '(no subject)'
+        return re.sub(r'^(re|fwd?):\s*', '', string.strip(s.lower()))
+
+    def getDateSent(self):
+        """Get the time of sending from the Date header
+
+        Returns a time object using time.mktime.  Not very reliable, because
+        the Date header can be missing or spoofed (and often is, by spammers).
+        Throws a MessageDateError if the Date header is missing or invalid.
+        """
+        dh = self.getheader('Date')
+        if dh == None: 
+            return None
+        try:
+            return time.mktime(rfc822.parsedate(dh))
+        except ValueError:
+            raise MessageDateError("message has missing or bad Date")
+        except TypeError:  # gets thrown by mktime if parsedate returns None
+            raise MessageDateError("message has missing or bad Date")
+        except OverflowError:
+            raise MessageDateError("message has missing or bad Date")
+
+    def getDateRecd(self):
+        """Get the time the message was received"""
+        # XXX check that stat returns time in UTC, fix if not
+        return os.stat(self.getFilePath())[8]
+
+    def getDateSentOrRecd(self):
+        """Get the time the message was sent, fall back on time received"""
+        try:
+            d = self.getDateSent()
+            if d != None:
+                return d
+        except MessageDateError:
+            pass
+        return self.getDateRecd()
+
+    def getAge(self):
+        """Get the number of seconds since the message was received"""
+        msgTime = self.getDateRecd()
+        msgAge = time.mktime(time.gmtime()) - msgTime
+        return msgAge / (60*60*24)
+
+
+class MaildirCleaner(object):
+
+    """Clean a maildir by deleting or moving old messages"""
+
+    __trashWriter = None
+    __mdWriter = None
+    stats = {'total': 0, 'delete': 0, 'trash': 0, 'archive': 0}
+    keepSubjects = {}
+    archiveFolder = None
+    archiveHierDepth = 2
+    folderBase = None
+    folderPrefix = "."
+    folderSeperator = "."
+    keepFlaggedThreads = False
+    trashFolder = "Trash"
+    isTrialRun = False
+    keepRead = False
+
+    def __init__(self, folderBase=None):
+        """Initialize the MaildirCleaner
+
+        Arguments:
+        folderBase -- the directory in which the folders are found
+        """
+        self.folderBase = folderBase
+        self.__mdWriter = MaildirWriter()
+        self.logger = logging.getLogger('MaildirCleaner')
+        self.logger.setLevel(logging.DEBUG)
+
+    def __getTrashWriter(self):
+        if not self.__trashWriter:
+            path = os.path.join(self.folderBase, self.folderPrefix + self.trashFolder)
+            self.__trashWriter = MaildirWriter(path)
+        return self.__trashWriter
+
+    trashWriter = property(__getTrashWriter)
+
+    def scanSubjects(self, folderName):
+        """Scans for flagged subjects"""
+        self.logger.info("Scanning for flagged subjects...")
+        if (folderName == 'INBOX'):
+            path = self.folderBase
+        else:
+            path = os.path.join(self.folderBase, self.folderPrefix + folderName)
+        maildir = mailbox.Maildir(path, MaildirMessage)
+        self.keepSubjects = {}
+        for i, msg in enumerate(maildir):
+            if msg.isFlagged():
+                self.keepSubjects[msg.getSubjectHash()] = 1
+                self.logger.debug("Flagged (%d): %s", i, msg.getSubjectHash())
+        self.logger.info("Done scanning.")
+
+
+    def clean(self, mode, folderName, minAge):
+
+        """Trashes or archives messages older than minAge days
+
+        Arguments:
+        mode -- the cleaning mode.  Valid modes are:
+            trash -- moves the messages to a trash folder
+            archive -- moves the messages to folders based on their date
+            delete -- deletes the messages
+        folderName -- the name of the folder on which to operate
+            This is a name like "Stuff", not a filename
+        minAge -- messages younger than minAge days are left alone
+        """
+
+        if not mode in ('trash', 'archive', 'delete'):
+            raise ValueError
+
+        if (self.keepFlaggedThreads):
+            self.scanSubjects(folderName)
+
+        archiveFolder = self.archiveFolder
+        if (archiveFolder == None):
+            if (folderName == 'INBOX'):
+                archiveFolder = ""
+            else:
+                archiveFolder = folderName
+
+        if (folderName == 'INBOX'):
+            path = self.folderBase
+        else:
+            path = os.path.join(self.folderBase, self.folderPrefix + folderName)
+
+        maildir = mailbox.Maildir(path, MaildirMessage)
+
+        fakeMsg = ""
+        if self.isTrialRun: 
+            fakeMsg = "(Not really) "
+
+        # Move old messages
+        for i, msg in enumerate(maildir):
+            if self.keepFlaggedThreads == True \
+                    and msg.getSubjectHash() in self.keepSubjects:
+                self.log(logging.DEBUG, "Keeping #%d (topic flagged)" % i, msg)
+            else:
+                if (msg.getAge() >= minAge) and ((not self.keepRead) or (self.keepRead and msg.isNew())):
+                    if mode == 'trash':
+                        self.log(logging.INFO, "%sTrashing #%d (old)" %
+                                 (fakeMsg, i), msg)
+                        if not self.isTrialRun:
+                            self.trashWriter.deliver(msg)
+                            os.unlink(msg.getFilePath())
+                    elif mode == 'delete':
+                        self.log(logging.INFO, "%sDeleting #%d (old)" % 
+                                 (fakeMsg, i), msg)
+                        if not self.isTrialRun:
+                            os.unlink(msg.getFilePath())
+                    else: # mode == 'archive'
+                        # Determine subfolder path
+                        mdate = time.gmtime(msg.getDateSentOrRecd())
+                        datePart = str(mdate[0])
+                        if self.archiveHierDepth > 1:
+                            datePart += self.folderSeperator \
+                                        + time.strftime("%m-%b", mdate)
+                        if self.archiveHierDepth > 2:
+                            datePart += self.folderSeperator \
+                                        + time.strftime("%d-%a", mdate)
+                        subFolder = archiveFolder + self.folderSeperator \
+                                    + datePart
+                        sfPath = os.path.join(self.folderBase, 
+                                              self.folderPrefix + subFolder)
+                        self.log(logging.INFO, "%sArchiving #%d to %s" %
+                                 (fakeMsg, i, subFolder), msg)
+                        if not self.isTrialRun:
+                            # Create the subfolder if needed
+                            if not os.path.exists(sfPath):
+                                mkMaildir(sfPath)
+                            # Deliver
+                            self.__mdWriter.deliver(msg, sfPath)
+                            os.unlink(msg.getFilePath())
+                    self.stats[mode] += 1
+                else:
+                    self.log(logging.DEBUG, "Keeping #%d (fresh)" % i, msg)
+            self.stats['total'] += 1
+
+    def log(self, lvl, text, msgObj):
+        """Log some text with the subject of a message"""
+        subj = msgObj.getSubject()
+        if subj == None:
+            subj = "(no subject)"
+        self.logger.log(lvl, text + ": " + subj)
+
+
+# Defaults
+minAge = 14
+mode = None
+
+logging.basicConfig()
+logging.getLogger().setLevel(logging.DEBUG)
+logging.disable(logging.INFO - 1)
+logger = logging.getLogger('cleanup-maildir')
+cleaner = MaildirCleaner()
+
+# Read command-line arguments
+try:
+    opts, args = getopt.getopt(sys.argv[1:], 
+            "hqvnrm:t:a:kd:",
+            ["help", "quiet", "verbose", "version", "mode=", "trash-folder=",
+             "age=", "keep-flagged-threads", "keep-read", "folder-seperator=",
+             "folder-prefix=", "maildir-root=", "archive-folder=",
+             "archive-hierarchy-depth=", "trial-run"])
+except getopt.GetoptError, (msg, opt):
+    logger.error("%s\n\n%s" % (msg, __doc__))
+    sys.exit(2)
+output = None
+for o, a in opts:
+    if o in ("-h", "--help"):
+        print __doc__
+        sys.exit()
+    if o in ("-q", "--quiet"): 
+        logging.disable(logging.WARNING - 1)
+    if o in ("-v", "--verbose"): 
+        logging.disable(logging.DEBUG - 1)
+    if o == "--version":
+        print __version__
+        sys.exit()
+    if o in ("-n", "--trial-run"):
+        cleaner.isTrialRun = True
+    if o in ("-m", "--mode"): 
+        logger.warning("the --mode flag is deprecated (see --help)")
+        if a in ('trash', 'archive', 'delete'):
+            mode = a
+        else:
+            logger.error("%s is not a valid command" % a)
+            sys.exit(2)
+    if o in ("-t", "--trash-folder"): 
+        cleaner.trashFolder = a
+    if o == "--archive-folder":
+        cleaner.archiveFolder = a
+    if o in ("-a", "--age"): 
+        minAge = int(a)
+    if o in ("-k", "--keep-flagged-threads"): 
+        cleaner.keepFlaggedThreads = True
+    if o in ("-r", "--keep-read"):
+        cleaner.keepRead = True
+    if o == "--folder-seperator":
+        cleaner.folderSeperator = a
+    if o == "--folder-prefix":
+        cleaner.folderPrefix = a
+    if o == "--maildir-root":
+        cleaner.folderBase = a
+    if o in ("-d", "--archive-hierarchy-depth"): 
+        archiveHierDepth = int(a)
+        if archiveHierDepth < 1 or archiveHierDepth > 3:
+            sys.stderr.write("Error: archive hierarchy depth must be 1, " +
+                             "2, or 3.\n")
+            sys.exit(2)
+        cleaner.archiveHierDepth = archiveHierDepth
+
+if not cleaner.folderBase:
+    cleaner.folderBase = os.path.join(os.environ["HOME"], "Maildir")
+if mode == None:
+    if len(args) < 1:
+        logger.error("No command specified")
+        sys.stderr.write(__doc__)
+        sys.exit(2)
+    mode = args.pop(0)
+    if not mode in ('trash', 'archive', 'delete'):
+        logger.error("%s is not a valid command" % mode)
+        sys.exit(2)
+
+if len(args) == 0:
+    logger.error("No folder(s) specified")
+    sys.stderr.write(__doc__)
+    sys.exit(2)
+
+logger.debug("Mode is " + mode)
+
+# Clean each folder
+for dir in args:
+    logger.debug("Cleaning up %s..." % dir)
+    cleaner.clean(mode, dir, minAge)
+
+logger.info('Total messages:     %5d' % cleaner.stats['total'])
+logger.info('Affected messages:  %5d' % cleaner.stats[mode])
+logger.info('Untouched messages: %5d' %
+            (cleaner.stats['total'] - cleaner.stats[mode]))
diff --git a/cli/dict.py b/cli/dict.py
new file mode 100755
index 0000000..6043a3c
--- /dev/null
+++ b/cli/dict.py
@@ -0,0 +1,104 @@
+#!/usr/bin/env python
+# -*- coding: UTF-8 -*-
+#
+# Lookup word from YoDao online dictionary service.
+#
+
+import sys, urllib2, optparse, os
+try:
+    import xml.etree.ElementTree as ElementTree # in python >=2.5
+except ImportError:
+    try:
+        import cElementTree as ElementTree # effbot's C module
+    except ImportError:
+        try:
+            # effbot's pure Python module
+            import elementtree.ElementTree as ElementTree
+        except ImportError:
+            try:
+                # ElementTree API using libxml2
+                import lxml.etree as ElementTree
+            except ImportError:
+                import warnings
+                warnings.warn("could not import ElementTree "
+                              "(http://effbot.org/zone/element-index.htm)")
+
+def parseDict(xml):
+    tree = ElementTree.fromstring(xml)
+    word = tree.find('original-query').text
+    customtrans = tree.findall('custom-translation')
+    translist = []
+    for node in customtrans:
+        temp =[]
+        for item in deepFindAll(node,'translation/content'):
+            temp.append(item.text)
+        translist.append([node.find('source/name').text,temp])
+    return word, translist
+
+def parseSentence(xml):
+    tree = ElementTree.fromstring(xml)
+    senlist = []
+    for node in deepFindAll(tree,'example-sentences/sentence-pair'):
+        senlist.append([node.find('sentence').text,
+            node.find('sentence-translation').text])
+    return senlist
+
+def deepFindAll(element, tag):
+    if type(tag) == type(''):       tag = tag.split('/')
+    if tag == []:        return  [element]
+    if len(tag) == 1:
+        elist = []
+        findres = element.findall(tag[0])
+        if findres:     elist.extend(findres)
+        for node in element:
+            elist.extend(deepFindAll(node, tag[0]))
+        return elist
+    else:
+        sublist = deepFindAll(element, tag[0])
+        return deepFindAll(element, tag[1:])
+
+if __name__=='__main__':
+    parser = optparse.OptionParser()
+    parser.add_option('-w', dest='word',action='store_true',
+            default=False, help='print the translation of the word.')
+    parser.add_option('-s', dest='sent',action='store_true',
+            default=False, help='print sample sentences.')
+    options, args = parser.parse_args(sys.argv[1:])
+    #test if the string contains chinese
+    #if ' '.join(args).isalpha():
+    #    #os.system('echo %s |festival --tts' %' '.join(args))
+    #    os.system('espeak -ven+13 %s &>/dev/null' %' '.join(args))
+    #get word translation
+    xml1= urllib2.urlopen("http://dict.yodao.com/search?keyfrom=dict.python&q=" + '+'.join(args) + "&xmlDetail=true&doctype=xml").read()
+    word, translist = parseDict(xml1)
+    #get sample sentences
+    xml2= urllib2.urlopen("http://dict.yodao.com/search?keyfrom=dict.python&q=lj:" + '+'.join(args) + "&xmlDetail=true&doctype=xml").read()
+    senlist = parseSentence(xml2)
+    #define colors
+    BOLD='\033[1m'
+    DEFAULT='\033[m'
+    UNDERLINE='\033[4m'
+    MAGENTA='\033[35m'
+    YELLOW='\033[33m'
+    GREEN='\033[32m'
+    RED='\033[31m'
+    WHITE='\033[37m'
+    BGWHITE='\033[47m'
+    BLUE='\033[34m'
+    if options.word:
+        print RED+BOLD+word+DEFAULT
+        for item in translist:
+            print MAGENTA+BGWHITE+item[0]+DEFAULT +': '\
+                +GREEN+BOLD+ '; '.join(item[1]) + DEFAULT
+    if options.sent:
+        for item in senlist:
+            print item[0].replace('<b>', YELLOW+BOLD).replace('</b>', DEFAULT)
+            print BLUE+BOLD+item[1]+DEFAULT
+    if not options.word and not options.sent:
+        print RED+BOLD+word+DEFAULT
+        for item in translist:
+            print MAGENTA+BGWHITE+item[0]+DEFAULT +': '\
+                +GREEN+BOLD+ '; '.join(item[1]) + DEFAULT
+        for item in senlist[:7]:
+            print item[0].replace('<b>', YELLOW+BOLD).replace('</b>', DEFAULT)
+            print BLUE+BOLD+item[1]+DEFAULT
diff --git a/cli/flv2mp4.sh b/cli/flv2mp4.sh
new file mode 100755
index 0000000..f331c88
--- /dev/null
+++ b/cli/flv2mp4.sh
@@ -0,0 +1,23 @@
+#!/bin/sh
+#
+# Convert FLV to MP4 with ffmpeg and preserving original encodings.
+#
+# Credit:
+# [1] FFMPEG convert flv to mp4 without losing quality
+#     http://superuser.com/a/727081
+#
+# Aaron LI
+# Created: 2015-12-28
+#
+
+if [ $# -ne 1 ] && [ $# -ne 2 ]; then
+    echo "Usage: `basename $0` <file.flv> [file.mp4]"
+    exit 1
+fi
+
+INFILE="$1"
+OUTFILE="$2"
+[ -z "${OUTFILE}" ] && OUTFILE="${INFILE%.flv}.mp4"
+
+ffmpeg -i "${INFILE}" -codec copy "${OUTFILE}"
+
diff --git a/cli/geteltorito.pl b/cli/geteltorito.pl
new file mode 100755
index 0000000..fec18fa
--- /dev/null
+++ b/cli/geteltorito.pl
@@ -0,0 +1,228 @@
+#!/usr/bin/perl
+
+use Getopt::Std;
+
+#
+# geteltorito.pl: a bootimage extractor
+# Script that will extract the first El Torito bootimage from a
+# bootable CD image
+# R. Krienke 08/2001
+# krienke@uni-koblenz.de
+# License: GPL
+#
+# Get latest version from:
+# http://userpages.uni-koblenz.de/~krienke/ftp/noarch/geteltorito
+#
+$utilVersion="0.6"; 
+#
+# Version 0.6
+#    2015/02/25
+#    I included a patch by Daniel Kekez, daniel.kekez@utoronto.ca to make geteltorito
+#    better compatible with windows:
+#       "To run this Perl script using using Strawberry Perl under Windows, I
+#       found it was necessary to explicitly open the files in binary mode since
+#       Windows will default to text mode when open() is called."
+# Version 0.5
+#    2009/06/22
+#    A patch for harddisk emulation images from <colimit@gmail.com>.
+#    For BootMediaType=4 (harddisk emulation) SectorCount is always 1, and geteltorito.pl
+#    returns just MBR. This patch guesses the correct bootimage size
+#    from MBR (offset+size of the first partitition).
+# Version 0.4
+#    2007/02/01
+#    A patch from Santiago Garcia <manty@debian.org> to use a virtual sector
+#    size (vSecSize) of 512 bytes, as defined on "El Torito" specs and change
+#    unpack of the sector count from n to v to get the correct sector count.
+# Version 0.3
+#    2006/02/21
+#    A patch from  Ben Collins <bcollins@ubuntu.com> to make the 
+#    utility work on PPC machines (change from 'L'-encoding in pack to 'V')
+# Version 0.2
+#    Several patches included from Nathan Stratton Treadway(nathant@ontko.com)
+#    to adjust the platform output as well as fixes for other minor bugs
+# Version 0.1
+#    Initial release
+#
+# For information on El Torito see 
+# http://en.wikipedia.org/wiki/El_torito
+
+$vSecSize=512;
+$secSize=2048;
+$ret=undef;$version=undef;$opt_h=undef;$loadSegment=undef;$systemType=undef;
+
+#
+# Read a particular sector from a file
+# sector counting starts at 0, not 1
+#
+sub getSector{
+   my ($secNum, $secCount, $file)=@_;
+   my ($sec, $count);
+
+   open(FILE, "<:raw", $file) || die "Cannot open \"$file\" \n";
+
+   seek(FILE, $secNum*$secSize, 0);
+   $count=read(FILE, $sec, $vSecSize*$secCount, 0) ;
+   if( $count != $vSecSize*$secCount ){
+       warn "Error reading from file \"$file\"\n";
+   }
+   close(FILE);
+
+   return($sec);
+}
+
+
+#
+# Write eltorito data into a file
+#
+sub writeOutputFile{
+   my($name)=shift;
+   my($value)=shift;
+
+   open(OUT, ">:raw", $name)|| die "$0: Cannot open outputfile \"$name\" for writing. Stop.";
+   print OUT $value;
+   close(OUT);
+}
+
+
+#
+# Usage
+#
+sub usage{
+	warn "\n$0 [-hv] [-o outputfilename] cd-image \n",
+	    "Script will try to extract an El Torito image from a \n",
+	    "bootable CD (or cd-image) given by <cd-image> and write \n",
+	    "the data extracted to STDOUT or to a file.\n",
+	    "   -h:        This help. \n",
+	    "   -v:        Print version of script and exit.\n",
+	    "   -o <file>: Write extracted data to file <file> instead of STDOUT.\n",
+	    "\n\n";
+	exit 0;    
+}
+
+
+# ---------------------------------------------------------------------
+$ret=getopts('hvo:');
+ 
+if( defined($opt_v) ){
+ 	warn "Version: $utilVersion \n";
+	exit 0;
+}
+
+if( defined($opt_h) || $#ARGV <0 ){
+         usage(0);
+}	 
+
+if( defined($opt_o) ){
+   $outputFilename="$opt_o";
+}
+	 
+$imageFile=$ARGV[0];
+
+if( ! -r $imageFile ){
+	die "Cannot read image/device \"$imageFile\". Aborting\n";
+}
+
+#
+# Read Sector 17 from CD which should contain a Boot Record Volume
+# descriptor. This descriptor contains at its start the text ($isoIdent)
+# CD001     and ($toritoSpec)
+# EL TORITO SPECIFICATION
+# see http://www.cdpage.com/Compact_Disc_Variations/eltoritoi.html
+# for details
+#
+
+$sector=getSector(17, 1, $imageFile );
+($boot, $isoIdent, $version, $toritoSpec,
+ 	$unUsed, $bootP)= unpack( "Ca5CA32A32V", $sector );
+
+if( $isoIdent ne "CD001" || $toritoSpec ne "EL TORITO SPECIFICATION" ){
+	die "This data image does not seem to be a bootable CD-image\n";
+}	
+
+#
+# Now fetch the sector of the booting catalog 
+#
+$sector=getSector($bootP, 1, $imageFile );
+
+print STDERR "Booting catalog starts at sector: $bootP \n";
+
+# The first 32 bytes of this sector contains the validation entry for a
+# boot. The first byte has to be 01, the next byte determines the
+# architecture the image is designed for, where 00 is i86, 01 is PowerPC
+# and 02 is Mac. More data give info about manufacturer, etc.  The 
+# final two bytes must contain 0x55 and 0xAA respectively (as 
+# defined by the El Torito standard).
+
+$validateEntry=substr($sector, 0, 32);
+
+($header, $platform, $unUsed, $manufact, $unUsed, $five, $aa)=
+               unpack( "CCvA24vCC", $validateEntry);
+
+if( $header != 1 || $five != 0x55 || $aa != 0xaa ){
+	die "Invalid Validation Entry on image \n";
+}
+
+print STDERR "Manufacturer of CD: $manufact\n";
+print STDERR "Image architecture: ";
+print STDERR "x86" if( $platform == 0 );
+print STDERR "PowerPC" if( $platform == 1 );
+print STDERR "Mac" if( $platform == 2 );
+print STDERR "unknown ($platform)" if( $platform > 2 );
+print STDERR "\n";
+
+#
+# Now we examine the initial/defaultentry which follows the validate
+# entry and has a size of 32 bytes. 
+
+$initialEntry=substr($sector, 32, 32);
+
+($boot, $media, $loadSegment, $systemType, $unUsed, 
+       $sCount, $imgStart, $unUsed)=unpack( "CCvCCvVC", $initialEntry);
+
+if( $boot != 0x88 ){
+	die "Boot indicator in Initial/Default-Entry is not 0x88. CD is not bootable. \n";
+}    
+
+print STDERR "Boot media type is: ";
+if( $media == 0 ){
+	print STDERR "no emulation";
+	$count=0;
+}
+if( $media == 1 ){
+	print STDERR "1.2meg floppy";
+        $count=1200*1024/$vSecSize;  
+}
+if( $media == 2 ){
+	print STDERR "1.44meg floppy";
+        $count=1440*1024/$vSecSize;  
+}
+if( $media == 3 ){
+	print STDERR "2.88meg floppy";
+        $count=2880*1024/$vSecSize;  
+}
+if( $media == 4 ){
+	print STDERR "harddisk";
+	$MBR=getSector($imgStart, 1, $imageFile );
+	$partition1=substr($MBR, 446, 16);
+	($unUsed, $firstSector, $partitionSize) = unpack( "A8VV", $partition1);
+	$count=$firstSector + $partitionSize;
+}
+print STDERR "\n";
+
+# Only use the internal sector counter if the real size is unknown
+# ($count==0)
+$cnt=$count==0?$sCount:$count;
+
+print STDERR "El Torito image starts at sector $imgStart and has $cnt sector(s) of $vSecSize Bytes\n";
+
+# We are there:
+# Now read the bootimage to stdout
+$image=getSector($imgStart, $cnt, $imageFile);
+
+if( length($outputFilename) ){
+   writeOutputFile($outputFilename, $image);
+   print STDERR "\nImage has been written to file \"$outputFilename\".\n";
+}else{
+   print "$image";
+   print STDERR "Image has been written to stdout ....\n"; 
+}
diff --git a/cli/i3lock.sh b/cli/i3lock.sh
new file mode 100755
index 0000000..1af93d6
--- /dev/null
+++ b/cli/i3lock.sh
@@ -0,0 +1,16 @@
+#!/bin/sh
+#
+# see i3lock(1)
+#
+# Aaron LI
+# 2017-10-03
+#
+
+revert() {
+    xset dpms 0 0 0
+}
+
+trap revert SIGHUP SIGINT SIGTERM
+xset +dpms dpms 5 5 5
+i3lock -n
+revert
diff --git a/cli/pdf-embed-fonts.sh b/cli/pdf-embed-fonts.sh
new file mode 100755
index 0000000..0f89f70
--- /dev/null
+++ b/cli/pdf-embed-fonts.sh
@@ -0,0 +1,37 @@
+#!/bin/sh
+#
+# Embed a PDF file with all fonts it uses, so it can be rendered and printed
+# correctly by every PDF reader on all types of OS.
+#
+#
+# Credits:
+# [1] The PDF viewer 'Evince' on Linux can not display some math symbols correctly
+#     http://stackoverflow.com/a/10282269/4856091
+#
+#
+# Aaron LI
+# 2015-10-24
+#
+
+usage() {
+    echo "usage: `basename $0` <input.pdf> [ output_embedfonts.pdf  ]"
+    exit 1
+}
+
+if [ $# -eq 0 ]; then
+    usage
+fi
+case "$1" in
+    -[hH]*)
+        usage
+        ;;
+esac
+
+INFILE="$1"
+OUTFILE="$2"
+
+[ -z "${OUTFILE}" ] && OUTFILE="${INFILE%.pdf}_embedfonts.pdf"
+
+# "-dPDFSETTINGS=/prepress" tells Ghostscript to embed all non-embedded fonts.
+gs -o "${OUTFILE}" -dPDFSETTINGS=/prepress -sDEVICE=pdfwrite "${INFILE}"
+
diff --git a/cli/whatmp3.py b/cli/whatmp3.py
new file mode 100755
index 0000000..4269fd0
--- /dev/null
+++ b/cli/whatmp3.py
@@ -0,0 +1,370 @@
+#!/usr/bin/env python3
+
+import argparse
+import multiprocessing
+import os
+import re
+import shutil
+import sys
+import threading
+from fnmatch import fnmatch
+
+VERSION = "3.8"
+
+# DEFAULT CONFIGURATION
+
+# Output folder unless specified
+# output = os.path.join(os.environ['HOME'], "Desktop/")
+output = os.getcwd()
+
+# Separate torrent output folder (defaults to output):
+torrent_dir = output
+
+# Do you want to copy additional files (.jpg, .log, etc)?
+copyother = 1
+
+# Do you want to zeropad tracknumbers? (1 => 01, 2 => 02 ...)
+zeropad = 1
+
+# Do you want to dither FLACs to 16/44 before encoding?
+dither = 0
+
+# Specify tracker announce URL
+tracker = None
+
+# Max number of threads (e.g., Dual-core = 2, Hyperthreaded Dual-core = 4)
+max_threads = multiprocessing.cpu_count()
+
+# Tags to copy (note: changing/adding to these requires changing/adding values in/to 'encoders' below)
+copy_tags = ('TITLE', 'ALBUM', 'ARTIST', 'TRACKNUMBER', 'GENRE', 'COMMENT', 'DATE')
+
+# Default encoding options
+enc_opts = {
+    '320':  {'enc': 'lame',       'ext': '.mp3',  'opts': '-q 0 -b 320 --ignore-tag-errors --noreplaygain'},
+    'V0':   {'enc': 'lame',       'ext': '.mp3',  'opts': '-q 0 -V 0 --vbr-new --ignore-tag-errors --noreplaygain'},
+    'V2':   {'enc': 'lame',       'ext': '.mp3',  'opts': '-q 0 -V 2 --vbr-new --ignore-tag-errors --noreplaygain'},
+    'V8':   {'enc': 'lame',       'ext': '.mp3',  'opts': '-q 0 -V 8 --vbr-new --ignore-tag-errors --noreplaygain'},
+    'Q8':   {'enc': 'oggenc',     'ext': '.ogg',  'opts': '-q 8 --utf8'},
+    'AAC':  {'enc': 'neroAacEnc', 'ext': '.aac',  'opts': '-br 320000'},
+    'ALAC': {'enc': 'ffmpeg',     'ext': '.m4a',  'opts': ''},
+    'FLAC': {'enc': 'flac',       'ext': '.flac', 'opts': '--best'}
+}
+
+encoders = {
+    'lame': {
+        'enc':         "lame --silent %(opts)s %(tags)s --add-id3v2 - '%(filename)s' 2>&1",
+        'TITLE':       "--tt '%(TITLE)s'",
+        'ALBUM':       "--tl '%(ALBUM)s'",
+        'ARTIST':      "--ta '%(ARTIST)s'",
+        'TRACKNUMBER': "--tn '%(TRACKNUMBER)s'",
+        'GENRE':       "--tg '%(GENRE)s'",
+        'DATE':        "--ty '%(DATE)s'",
+        'COMMENT':     "--tc '%(COMMENT)s'",
+        'regain':      "mp3gain -q -c -s i '%s'/*.mp3"
+    },
+    'oggenc': {
+        'enc':         "oggenc -Q %(opts)s %(tags)s -o '%(filename)s' - 2>&1",
+        'TITLE':       "-t '%(TITLE)s'",
+        'ALBUM':       "-l '%(ALBUM)s'",
+        'ARTIST':      "-a '%(ARTIST)s'",
+        'TRACKNUMBER': "-N '%(TRACKNUMBER)s'",
+        'GENRE':       "-G '%(GENRE)s'",
+        'DATE':        "-d '%(DATE)s'",
+        'COMMENT':     "-c 'comment=%(COMMENT)s'",
+        'regain':      "vorbisgain -qafrs '%s'/*.ogg"
+    },
+    'neroAacEnc': {
+        'enc':         "neroAacEnc %(opts)s -if - -of '%(filename)s' 2>&1 && neroAacTag %(tags)s",
+        'TITLE':       "-meta:title='%(TITLE)s'",
+        'ALBUM':       "-meta:album='%(ALBUM)s'",
+        'ARTIST':      "-meta:artist='%(ARTIST)s'",
+        'TRACKNUMBER': "-meta:track='%(TRACKNUMBER)s'",
+        'GENRE':       "-meta:genre='%(GENRE)s'",
+        'DATE':        "-meta:year='%(DATE)s'",
+        'COMMENT':     "-meta:comment='%(COMMENT)s'",
+        'regain':      "aacgain -q -c '%s'/*.aac"
+    },
+    'ffmpeg': {
+        'enc':         "ffmpeg %(opts)s -i - -acodec alac %(tags)s '%(filename)s' 2>&1",
+        'TITLE':       "-metadata title='%(TITLE)s'",
+        'ALBUM':       "-metadata album='%(ALBUM)s'",
+        'ARTIST':      "-metadata author='%(ARTIST)s'",
+        'TRACKNUMBER': "-metadata track='%(TRACKNUMBER)s'",
+        'GENRE':       "-metadata genre='%(GENRE)s'",
+        'DATE':        "-metadata date='%(DATE)s'",
+        'COMMENT':     "-metadata comment='%(COMMENT)s'",
+        'regain':      ""
+    },
+    'flac': {
+        'enc':         "flac %(opts)s -s %(tags)s -o '%(filename)s' - 2>&1",
+        'TITLE':       "-T 'TITLE=%(TITLE)s'",
+        'ALBUM':       "-T 'ALBUM=%(ALBUM)s'",
+        'ARTIST':      "-T 'ARTIST=%(ARTIST)s'",
+        'TRACKNUMBER': "-T 'TRACKNUMBER=%(TRACKNUMBER)s'",
+        'GENRE':       "-T 'GENRE=%(GENRE)s'",
+        'DATE':        "-T 'DATE=%(DATE)s'",
+        'COMMENT':     "-T 'COMMENT=%(COMMENT)s'",
+        'regain':      "metaflac --add-replay-gain '%s'/*.flac"
+    }
+}
+
+dither_cmd = 'sox -t wav - -b 16 -t wav - rate 44100 dither'
+
+# END CONFIGURATION
+
+codecs = []
+
+def copy_other(opts, flacdir, outdir):
+    if opts.verbose:
+        print('COPYING other files')
+    for dirpath, dirs, files in os.walk(flacdir, topdown=False):
+        for name in files:
+            if opts.nolog and fnmatch(name.lower(), '*.log'):
+                continue
+            if opts.nocue and fnmatch(name.lower(), '*.cue'):
+                continue
+            if opts.nodots and fnmatch(name.lower(), '^.'):
+                continue
+            if (not fnmatch(name.lower(), '*.flac')
+               and not fnmatch(name.lower(), '*.m3u')):
+                d = re.sub(re.escape(flacdir), outdir, dirpath)
+                if (os.path.exists(os.path.join(d, name))
+                   and not opts.overwrite):
+                    continue
+                if not os.path.exists(d):
+                    os.makedirs(d)
+                shutil.copy(os.path.join(dirpath, name), d)
+
+class EncoderArg(argparse.Action):
+    def __init__(self, option_strings, dest, nargs=None, **kwargs):
+        super(EncoderArg, self).__init__(option_strings, dest, nargs, **kwargs)
+    def __call__(self, parser, namespace, values, option_string=None):
+        codecs.append(option_string[2:])
+
+def escape_quote(pattern):
+    pattern = re.sub("'", "'\"'\"'", pattern)
+    return pattern
+
+def escape_percent(pattern):
+    pattern = re.sub('%', '%%', pattern)
+    return pattern
+
+def failure(r, msg):
+    print("ERROR: %s: %s" % (r, msg), file=sys.stderr)
+
+def make_torrent(opts, target):
+    if opts.verbose:
+        print('MAKE: %s.torrent' % os.path.relpath(target))
+    torrent_cmd = "mktorrent -p -a '%s' -o '%s.torrent' '%s' 2>&1" % (
+        opts.tracker, escape_quote(os.path.join(opts.torrent_dir,
+                                   os.path.basename(target))),
+        escape_quote(target)
+    )
+    if opts.additional:
+        torrent_cmd += ' ' + opts.additional
+    if opts.nodate:
+        torrent_cmd += ' -d'
+    if not opts.verbose:
+        torrent_cmd += ' >/dev/null'
+    if opts.verbose:
+        print(torrent_cmd)
+    r = system(torrent_cmd)
+    if r: failure(r, torrent_cmd)
+
+def replaygain(opts, codec, outdir):
+    if opts.verbose:
+        print("APPLYING replaygain")
+        print(encoders[enc_opts[codec]['enc']]['regain'] % outdir)
+    r = system(encoders[enc_opts[codec]['enc']]['regain'] % escape_quote(outdir))
+    if r: failure(r, "replaygain")
+    for dirpath, dirs, files in os.walk(outdir, topdown=False):
+        for name in dirs:
+            r = system(encoders[enc_opts[codec]['enc']]['regain']
+                       % os.path.join(dirpath, name))
+            if r: failure(r, "replaygain")
+
+def setup_parser():
+    p = argparse.ArgumentParser(
+        description="whatmp3 transcodes audio files and creates torrents for them",
+        argument_default=False,
+        epilog="""depends on flac, metaflac, mktorrent, and optionally oggenc, lame, neroAacEnc,
+        neroAacTag, mp3gain, aacgain, vorbisgain, and sox""")
+    p.add_argument('--version', action='version', version='%(prog)s ' + VERSION)
+    for a in [
+        [['-v', '--verbose'],    False,     'increase verbosity'],
+        [['-n', '--notorrent'],  False,     'do not create a torrent after conversion'],
+        [['-r', '--replaygain'], False,     'add ReplayGain to new files'],
+        [['-c', '--original'],   False,     'create a torrent for the original FLAC'],
+        [['-i', '--ignore'],     False,     'ignore top level directories without flacs'],
+        [['-s', '--silent'],     False,     'do not write to stdout'],
+        [['-S', '--skipgenre'],  False,     'do not insert a genre tag in MP3 files'],
+        [['-D', '--nodate'],     False,     'do not write the creation date to the .torrent file'],
+        [['-L', '--nolog'],      False,     'do not copy log files after conversion'],
+        [['-C', '--nocue'],      False,     'do not copy cue files after conversion'],
+        [['-H', '--nodots'],     False,     'do not copy dot/hidden files after conversion'],
+        [['-w', '--overwrite'],  False,     'overwrite files in output dir'],
+        [['-d', '--dither'],     dither,    'dither FLACs to 16/44 before encoding'],
+        [['-m', '--copyother'],  copyother, 'copy additional files (def: true)'],
+        [['-z', '--zeropad'],    zeropad,   'zeropad tracknumbers (def: true)'],
+    ]:
+        p.add_argument(*a[0], **{'default': a[1], 'action': 'store_true', 'help': a[2]})
+    for a in [
+        [['-a', '--additional'],  None,        'ARGS', 'additional arguments to mktorrent'],
+        [['-t', '--tracker'],     tracker,     'URL',  'tracker URL'],
+        [['-o', '--output'],      output,      'DIR',  'set output dir'],
+        [['-O', '--torrent-dir'], torrent_dir, 'DIR',  'set independent torrent output dir'],
+    ]:
+        p.add_argument(*a[0], **{
+            'default': a[1], 'action': 'store',
+            'metavar': a[2], 'help': a[3]
+        })
+    p.add_argument('-T', '--threads', default=max_threads, action='store',
+                   dest='max_threads', type=int, metavar='THREADS',
+                   help='set number of threads THREADS (def: %s)' % max_threads)
+    for enc_opt in enc_opts.keys():
+        p.add_argument("--" + enc_opt, action=EncoderArg, nargs=0,
+                       help='convert to %s' % (enc_opt))
+    p.add_argument('flacdirs', nargs='+', metavar='flacdir',
+                   help='directories to transcode')
+    return p
+
+def system(cmd):
+    return os.system(cmd)
+
+def transcode(f, flacdir, mp3_dir, codec, opts, lock):
+    tags = {}
+    for tag in copy_tags:
+        tagcmd = "metaflac --show-tag='" + escape_quote(tag) + \
+                 "' '" + escape_quote(f) + "'"
+        t = re.sub('\S.+?=', '', os.popen(tagcmd).read().rstrip(), count=1)
+        if t:
+            tags.update({tag: escape_quote(t)})
+        del t
+    if (opts.zeropad and 'TRACKNUMBER' in tags
+       and len(tags['TRACKNUMBER']) == 1):
+        tags['TRACKNUMBER'] = '0' + tags['TRACKNUMBER']
+    if opts.skipgenre and 'GENRE' in tags: del tags['GENRE']
+
+    outname = re.sub(re.escape(flacdir), mp3_dir, f)
+    outname = re.sub(re.compile('\.flac$', re.IGNORECASE), '', outname)
+    with lock:
+        if not os.path.exists(os.path.dirname(outname)):
+            os.makedirs(os.path.dirname(outname))
+    outname += enc_opts[codec]['ext']
+    if os.path.exists(outname) and not opts.overwrite:
+        print("WARN: file %s already exists" % (os.path.relpath(outname)),
+              file=sys.stderr)
+        return 1
+    flac_cmd = encoders[enc_opts[codec]['enc']]['enc']
+    tagline = ''
+    for tag in tags:
+        tagline = tagline + " " + encoders[enc_opts[codec]['enc']][tag]
+    tagline = tagline % tags
+    if opts.dither:
+        flac_cmd = dither_cmd + ' | ' + flac_cmd
+    flac_cmd = "flac -sdc -- '" + escape_percent(escape_quote(f)) + \
+               "' | " + flac_cmd
+    flac_cmd = flac_cmd % {
+        'opts': enc_opts[codec]['opts'],
+        'filename': escape_quote(outname),
+        'tags': tagline
+    }
+    outname = os.path.basename(outname)
+    if not opts.silent:
+        print("encoding %s" % outname)
+    if opts.verbose:
+        print(flac_cmd)
+    r = system(flac_cmd)
+    if r:
+        failure(r, "error encoding %s" % outname)
+        system("touch '%s/FAILURE'" % mp3_dir)
+    return 0
+
+class Transcode(threading.Thread):
+    def __init__(self, file, flacdir, mp3_dir, codec, opts, lock, cv):
+        threading.Thread.__init__(self)
+        self.file = file
+        self.flacdir = flacdir
+        self.mp3_dir = mp3_dir
+        self.codec = codec
+        self.opts = opts
+        self.lock = lock
+        self.cv = cv
+
+    def run(self):
+        r = transcode(self.file, self.flacdir, self.mp3_dir, self.codec,
+                      self.opts, self.lock)
+        with self.cv:
+            self.cv.notify_all()
+        return r
+
+def main():
+    parser = setup_parser()
+    opts = parser.parse_args()
+    if not opts.output.endswith('/'):
+        opts.output += '/'
+    if len(codecs) == 0 and not opts.original:
+        parser.error("you must provide at least one format to transcode to")
+        exit()
+    for flacdir in opts.flacdirs:
+        flacdir = os.path.abspath(flacdir)
+        flacfiles = []
+        if not os.path.exists(opts.torrent_dir):
+            os.makedirs(opts.torrent_dir)
+        for dirpath, dirs, files in os.walk(flacdir, topdown=False):
+            for name in files:
+                if fnmatch(name.lower(), '*.flac'):
+                    flacfiles.append(os.path.join(dirpath, name))
+        flacfiles.sort()
+        if opts.ignore and not flacfiles:
+            if not opts.silent:
+                print("SKIP (no flacs in): %s" % (os.path.relpath(flacdir)))
+            continue
+        if opts.original:
+            if not opts.silent:
+                print('BEGIN ORIGINAL FLAC')
+            if opts.output and opts.tracker and not opts.notorrent:
+                make_torrent(opts, flacdir)
+            if not opts.silent:
+                print('END ORIGINAL FLAC')
+
+        for codec in codecs:
+            outdir = os.path.basename(flacdir)
+            flacre = re.compile('FLAC', re.IGNORECASE)
+            if flacre.search(outdir):
+                outdir = flacre.sub(codec, outdir)
+            else:
+                outdir = outdir + " (" + codec + ")"
+            outdir = opts.output + outdir
+            if not os.path.exists(outdir):
+                os.makedirs(outdir)
+
+            if not opts.silent:
+                print('BEGIN ' + codec + ': %s' % os.path.relpath(flacdir))
+            threads = []
+            cv = threading.Condition()
+            lock = threading.Lock()
+            for f in flacfiles:
+                with cv:
+                    while (threading.active_count() == max(1, opts.max_threads) + 1):
+                        cv.wait()
+                    t = Transcode(f, flacdir, outdir, codec, opts, lock, cv)
+                t.start()
+                threads.append(t)
+            for t in threads:
+                t.join()
+
+            if opts.copyother:
+                copy_other(opts, flacdir, outdir)
+            if opts.replaygain:
+                replaygain(opts, codec, outdir)
+            if opts.output and opts.tracker and not opts.notorrent:
+                make_torrent(opts, outdir)
+            if not opts.silent:
+                print('END ' + codec + ': %s' % os.path.relpath(flacdir))
+
+        if opts.verbose: print('ALL DONE: ' + os.path.relpath(flacdir))
+    return 0
+
+if __name__ == '__main__':
+    main()
diff --git a/unix/makepatch.sh b/unix/makepatch.sh
new file mode 100755
index 0000000..86804ab
--- /dev/null
+++ b/unix/makepatch.sh
@@ -0,0 +1,61 @@
+#!/bin/sh
+#
+# Automatically make the patches for the updated files by find
+# the corresponding '*.orig' files through the given directory.
+#
+# Based on the 'makepatch' target of FreeBSD 'Mk/bsd.port.mk'.
+#
+#
+# Aaron LI
+# Created: 2015-10-13
+# Updated: 2015-12-07
+#
+# ChangeLog:
+# 2015-12-06:
+#   * Drop option '-s' for `find`
+# 2015-12-07:
+#   * Replace 'workdir' with 'srcdir'
+#   * Make find to search 'srcdir' instead of '.'
+#
+
+case "$1" in
+    -[hH]*|--[hH]*)
+        echo "Usage: $0 [srcdir] [patchdir]"
+        echo ""
+        echo "Both 'srcdir' and 'patchdir' default to be ."
+        exit 1
+        ;;
+esac
+
+SRCDIR=${1:-.}
+PATCHDIR=${2:-.}
+
+if [ ! -d "${PATCHDIR}" ]; then
+    mkdir ${PATCHDIR}
+fi
+
+PATCH_PATH_SEPARATOR="_"
+
+for f in `find ${SRCDIR}/ -type f -name '*.orig'`; do
+    _SEEN="NO"
+    ORIG=${f#./}
+    NEW=${ORIG%.orig}
+    if cmp -s ${ORIG} ${NEW}; then
+        # The two files are identical
+        continue
+    fi
+    PATCH=`echo ${NEW} | sed -e \
+        "s|${PATCH_PATH_SEPARATOR}|&&|g" -e "s|/|${PATCH_PATH_SEPARATOR}|g"`
+    OUT="${PATCHDIR}/patch-${PATCH}"
+    if test -f "${OUT}"; then
+        echo WARNING: patch already exists: \"${OUT}\"
+    else
+        echo diff -udp ${ORIG} ${NEW} '>' ${OUT}
+        TZ=UTC diff -udp ${ORIG} ${NEW} | sed -e \
+            '/^---/s|\.[0-9]* +0000$| UTC|' -e \
+            '/^+++/s|\([[:blank:]][-0-9:.+]*\)*$||' > ${OUT}
+    fi
+done
+
+exit 0
+
diff --git a/unix/snow.sh b/unix/snow.sh
new file mode 100755
index 0000000..57657d2
--- /dev/null
+++ b/unix/snow.sh
@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+#
+# Command line – Let it snow, Let it snow, Let it snow
+# http://mebsd.com/coding-snipits/command-line-let-it-snow-let-it-snow-let-it-snow.html
+# October 9, 2012
+#
+
+LINES=${LINES:-24}
+COLUMNS=${COLUMNS:-90}
+
+clear; \
+while :; \
+do \
+echo $LINES $COLUMNS $(($RANDOM%$COLUMNS)); \
+sleep 0.1; \
+done | \
+awk '{ \
+         a[$3]=0; \
+         for(x in a) {o=a[x]; \
+                      a[x]=a[x]+1; \
+                      printf "\033[%s;%sH ",o,x; \
+                      printf "\033[%s;%sH*\033[0;0H",a[x],x; \
+                     } \
+     }'