datapacker (empty) → 1.0.0
raw patch · 8 files changed
+1538/−0 lines, 8 filesdep +MissingHdep +basedep +directorysetup-changed
Dependencies added: MissingH, base, directory, filepath, hslogger, mtl, process, unix
Files
- COPYING +676/−0
- COPYRIGHT +25/−0
- INSTALL +16/−0
- Makefile +55/−0
- Setup.lhs +7/−0
- datapacker.cabal +38/−0
- datapacker.hs +146/−0
- datapacker.sgml +575/−0
+ COPYING view
@@ -0,0 +1,676 @@++ GNU GENERAL PUBLIC LICENSE+ Version 3, 29 June 2007++ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>+ Everyone is permitted to copy and distribute verbatim copies+ of this license document, but changing it is not allowed.++ Preamble++ The GNU General Public License is a free, copyleft license for+software and other kinds of works.++ The licenses for most software and other practical works are designed+to take away your freedom to share and change the works. By contrast,+the GNU General Public License is intended to guarantee your freedom to+share and change all versions of a program--to make sure it remains free+software for all its users. We, the Free Software Foundation, use the+GNU General Public License for most of our software; it applies also to+any other work released this way by its authors. You can apply it to+your programs, too.++ When we speak of free software, we are referring to freedom, not+price. 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+ COPYRIGHT view
@@ -0,0 +1,25 @@+Copyright (C) 2008 John Goerzen <jgoerzen@complete.org>++All code, documentation, and build scripts are under the following+license unless otherwise noted:++ This program is free software: you can redistribute it and/or modify+ it under the terms of the GNU General Public License as published by+ the Free Software Foundation, either version 3 of the License, or+ (at your option) any later version.++ This program is distributed in the hope that it will be useful,+ but WITHOUT ANY WARRANTY; without even the implied warranty of+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the+ GNU General Public License for more details.++ You should have received a copy of the GNU General Public License+ along with this program. If not, see <http://www.gnu.org/licenses/>.++The GNU General Public License is available in the file COPYING in the source+distribution. Debian GNU/Linux users may find this in+/usr/share/common-licenses/GPL-3.++If the GPL is unacceptable for your uses, please e-mail me; alternative+terms can be negotiated for your project.+
+ INSTALL view
@@ -0,0 +1,16 @@+Sorry, I need to work on this some more...++PREREQUISITES:++ * GHC 6.8 or above http://www.haskell.org/ghc++Once you have that, you can just run "make". It will tell you if you+are missing any Haskell libraries.++All remaining packages can be found from http://hackage.haskell.org as+a central location. Here are some of the packages and their+homepages. Again, you can use either their homepage or+http://hackage.haskell.org to download them.++ * MissingH 1.0.1 or above http://software.complete.org/missingh+ * hslogger http://software.complete.org/hslogger
+ Makefile view
@@ -0,0 +1,55 @@+# Copyright (c) 2004-2008 John Goerzen+#++all: setup # GHC build+ ./setup configure+ ./setup build++hugsbuild: setup+ ./setup configure --hugs+ ./setup build++setup: Setup.lhs datapacker.cabal+ ghc -package Cabal Setup.lhs -o setup++doc: man html pdf txt++.PHONY: man+man: datapacker.1++.PHONY: html+html: datapacker.html++.PHONY: pdf+pdf: datapacker.pdf++.PHONY: txt+txt: datapacker.txt++datapacker.html: datapacker.sgml+ docbook2html -u datapacker.sgml++datapacker.ps: datapacker.1+ man -t -l datapacker.1 > datapacker.ps++datapacker.pdf: datapacker.ps+ ps2pdf14 datapacker.ps++datapacker.txt: datapacker.1+ groff -Tascii -man datapacker.1 | sed $$'s/.\b//g' > datapacker.txt++datapacker.1: datapacker.sgml+ docbook2man datapacker.sgml+ docbook2man datapacker.sgml++clean: clean-code clean-doc++clean-code:+ -./setup clean+ -cd libsrc && ../setup clean+ -rm -rf dist libsrc/dist *.ho *.hi *.o *.a setup *~+ -rm -f `find . -name "*~"` `find . -name "*.o"`+ -rm -f `find . -name "*.cm*"`++clean-doc:+ -rm -f *.1 *.ps *.pdf *.txt *.links *.refs *.html
+ Setup.lhs view
@@ -0,0 +1,7 @@+#!/usr/bin/env runhugs+arch-tag: Main setup script++> import Distribution.Simple++> main = defaultMain+
+ datapacker.cabal view
@@ -0,0 +1,38 @@+Name: datapacker+Version: 1.0.0+License: GPL+Maintainer: John Goerzen <jgoerzen@complete.org>+Author: John Goerzen+Stability: Stable+Copyright: Copyright (c) 2008 John Goerzen+license-file: COPYRIGHT+extra-source-files: COPYING, datapacker.sgml, Makefile, INSTALL+homepage: http://software.complete.org/datapacker+Build-type: Simple+Category: Network+Synopsis: Tool to help pack files into the minimum number of CDs/DVDs/etc+Description: datapacker is a tool to group files by size. It is+ designed to group files such that they fill fixed-size containers+ (called "bins") using the minimum number of containers. This is+ useful, for instance, if you want to archive a number of files to CD+ or DVD, and want to organize them such that you use the minimum+ possible number of CDs or DVDs.+ .+ In many cases, datapacker executes almost instantaneously. Of+ particular note, the hardlink action can be used+ to effectively copy data into bins without having to actually copy+ the data at all.+ .+ datapacker is a tool in the traditional Unix style; it can be used in+ pipes and call other tools.++Build-Depends: unix, MissingH>=1.0.1, mtl, base, filepath, directory,+ hslogger, process++Executable: datapacker+Main-Is: datapacker.hs+ +GHC-Options: -O2 -Wall+ +-- Extensions: ExistentialQuantification, OverlappingInstances,+-- UndecidableInstances
+ datapacker.hs view
@@ -0,0 +1,146 @@+{- +Copyright (C) 2006-2008 John Goerzen <jgoerzen@complete.org>++This program is distributed in the hope that it will be useful, but+WITHOUT ANY WARRANTY; without even the implied warranty of+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU+General Public License for more details.+-}++{- |+ Module : Main+ Copyright : Copyright (C) 2008 John Goerzen+ License : GNU GPL, version 3 or above; see COPYRIGHT for details++ Maintainer : John Goerzen <jgoerzen@complete.org>+ Stability : provisional+ Portability: portable++Written by John Goerzen, jgoerzen\@complete.org++-}++import System.Log.Logger+import System.Log.Handler.Simple+import System.IO(stderr)+import System.Console.GetOpt.Utils+import System.Console.GetOpt+import System.Environment+import Data.Quantity+import Data.List+import System.Exit+import Control.Monad+import Types+import Scan+import Data.List.Utils(split)+import Actions++main :: IO ()+main = + do updateGlobalLogger "" (setLevel INFO)+ argv <- getArgs+ case getOpt RequireOrder options argv of+ (o, n, []) -> worker o n+ (_, _, errors) -> usageerror (concat errors) -- ++ usageInfo header options)++options :: [OptDescr (String, String)] +options = [+ Option "0" ["null"] (NoArg ("0", ""))+ "Input items terminated by null character",+ Option "a" ["action"] (ReqArg (stdRequired "a") "ACTION")+ "Give action for output. Options are:\n\+ \print print each record with a newline\n\+ \ after [default]\n\+ \printfull print one line for each bin\n\+ \print0 print each record with NULL after\n\+ \exec:CMD Execute CMD in the shell for each\n\+ \record\n\+ \hardlink Hard link items into bins\n\+ \symlink Symlink items into bins",+ Option "b" ["binfmt"] (ReqArg (stdRequired "b") "FORMAT")+ "Gives bin name format in printf style.\n\+ \Tip: this can include a directory.\n\+ \default: %03d",+ Option "d" ["debug"] (NoArg ("d", "")) "Enable debugging",+ Option "p" ["preserve-order"] (NoArg ("p", ""))+ "Don't reorder files for maximum packing",+ Option "s" ["size"] (ReqArg (stdRequired "s") "SIZE")+ "Size of each output bin",+ Option "S" ["size-first"] (ReqArg (stdRequired "S") "SIZE")+ "Override size of first output bin",+ Option "" ["help"] (NoArg ("help", "")) "Display this help"]++worker :: [(String, String)] -> [FilePath] -> IO ()+worker args files =+ do when (lookup "help" args == Just "") $ usageerror ""+ when (lookup "d" args == Just "") + (updateGlobalLogger "" (setLevel DEBUG))+ handler <- streamHandler stderr DEBUG+ updateGlobalLogger "" (setHandlers [handler])+ + runinfo <- case parseArgs args of+ Left x -> usageerror x+ Right x -> return x++ when (files == [])+ (usageerror "One or more files, or \"-\", must be specified")++ files_scan <- if files == ["-"]+ then readFileList (readNull runinfo)+ else return files++ results <- scan runinfo files_scan+ let numberedResults = zip [1..] (map (map snd) results)+ runAction runinfo numberedResults++readFileList :: Bool -> IO [FilePath]+readFileList nullsep =+ do c <- getContents+ return (splitfunc c)+ where splitfunc + | nullsep = filter (/= "") . split "\0"+ | otherwise = lines++parseArgs :: [(String, String)] -> Either String RunInfo+parseArgs args =+ do size <- case lookup "s" args of+ Nothing -> fail "Missing required argument --size"+ Just x -> parseNumInt binaryOpts True x+ first <- case lookup "S" args of+ Nothing -> return size+ Just x -> parseNumInt binaryOpts True x+ let po = case lookup "p" args of+ Nothing -> False+ Just _ -> True+ let n = case lookup "0" args of+ Nothing -> False+ Just _ -> True+ let b = case lookup "b" args of+ Nothing -> "%03d"+ Just x -> x+ a <- case lookup "a" args of+ Nothing -> return Print+ Just "print" -> return Print+ Just "printfull" -> return PrintFull+ Just "print0" -> return Print0+ Just "hardlink" -> return Hardlink+ Just "symlink" -> return Symlink+ Just x -> + if "exec:" `isPrefixOf` x+ then return (Exec (drop 5 x))+ else fail $ "Unknown action: " ++ show x+ return $ RunInfo {binSize = size, firstBinSize = first,+ preserveOrder = po, readNull = n, binFmt = b,+ action = a}++usageerror :: String -> IO t+usageerror errormsg =+ do putStrLn errormsg+ putStrLn (usageInfo header options)+ putStrLn "If the single value \"-\" is given for inputfiles, the list of files"+ putStrLn "is read from stdin."+ exitFailure++header :: String+header = "\nUsage: datapacker [options] --size=n inputfiles\n\n\+ \Available options are:\n"
+ datapacker.sgml view
@@ -0,0 +1,575 @@+<!DOCTYPE reference PUBLIC "-//OASIS//DTD DocBook V4.1//EN" [+ <!ENTITY datapacker "<application>datapacker</application>">+]>+<!-- "file:///usr/share/sgml/docbook/dtd/xml/4.2/docbookx.dtd"> -->++<reference>+ <title>datapacker Manual</title>++ <refentry>+ <refentryinfo>+ <address><email>jgoerzen@complete.org</email></address>+ <author><firstname>John</firstname><surname>Goerzen</surname></author>+ </refentryinfo>++ <refmeta>+ <refentrytitle>datapacker</refentrytitle>+ <manvolnum>1</manvolnum>+ <refmiscinfo>John Goerzen</refmiscinfo>+ </refmeta>++ <refnamediv>+ <refname>datapacker</refname>+ <refpurpose>Tool to pack files into the minimum number+ of bins</refpurpose>+ </refnamediv>++ <refsynopsisdiv>+ <cmdsynopsis>+ <command>datapacker</command>+ <arg>-0</arg>+ <arg>-a <replaceable>ACTION</replaceable></arg>+ <arg>-b <replaceable>FORMAT</replaceable></arg>+ <arg>-d</arg>+ <arg>-p</arg>+ <arg>-S <replaceable>SIZE</replaceable></arg>+ <arg choice="plain">-s <replaceable>SIZE</replaceable></arg>+ <arg choice="plain" rep="repeat"><replaceable>FILE</replaceable></arg>+ </cmdsynopsis>+ <cmdsynopsis>+ <command>datapacker</command>+ <group choice="plain"><arg>-h</arg><arg>--help</arg></group>+ </cmdsynopsis>+ </refsynopsisdiv>++ <refsect1>+ <title>Description</title>++ <para>&datapacker; is a tool to group files by size. It is+ designed to group files such that they fill fixed-size+ containers (called "bins") using the minimum number of+ containers. This is useful, for instance, if you want to+ archive a number of files to CD or DVD, and want to organize+ them such that you use the minimum possible number of CDs or+ DVDs.+ </para>++ <para>+ In many cases, &datapacker; executes almost instantaneously.+ Of particular note, the <literal>hardlink</literal> action+ (see OPTIONS below) can be used to effectively copy data into+ bins without having to actually copy the data at all.+ </para>+ + <para>+ &datapacker; is a tool in the traditional Unix style; it can+ be used in pipes and call other tools.+ </para>++ <refsect1>+ <title>Options</title>+ <para>+ Here are the command-line options you may set for+ &datapacker;. Please note that <option>-s</option> and at+ least one file (see FILE SPECIFICATION below) is mandatory.+ </para>++ <variablelist>+ <varlistentry>+ <term>-0</term>+ <term>--null</term>+ <listitem><para>+ When reading a list of files from standard input (see+ FILE SPECIFICATION below), expect the input to be+ separated by NULL (ASCII 0) characters instead of one+ per line. Especially useful with <command>find+ -print0</command>.+ </para>+ </listitem>+ </varlistentry>++ <varlistentry>+ <term>-a <replaceable>ACTION</replaceable></term>+ <term>--action=<replaceable>ACTION</replaceable></term>+ <listitem>+ <para>+ Defines what action to take with the matches. Please+ note that, with any action, the output will be sorted by+ bin, with bin 1 first. Possible+ actions include:+ </para>+ <variablelist>+ <varlistentry>+ <term>print</term>+ <listitem><para>Print one human-readable line per+ file. Each line contains the bin number (in the+ format given by <option>-b</option>), an ASCII tab+ character, then the filename.+ </para>+ </listitem>+ </varlistentry>++ <varlistentry>+ <term>printfull</term>+ <listitem><para>Print one semi-human-readable line per+ bin. Each line contains the bin number, then a list+ of filenames to place in that bin,+ with an ASCII tab character after the+ bin number and between each filename.+ </para>+ </listitem>+ </varlistentry>++ <varlistentry>+ <term>print0</term>+ <listitem>+ <para>+ For each file, output the bin number (according to the+ format given by <option>-b</option>), an ASCII+ NULL character, the filename, and another ASCII+ NULL character. Ideal for use with <literal>xargs+ -0 -L 2</literal>.+ </para>+ </listitem>+ </varlistentry>++ <varlistentry>+ <term>exec:<replaceable>COMMAND</replaceable></term>+ <listitem>+ <para>+ For each file, execute the specified COMMAND via+ the shell. The program COMMAND will be passed+ information on its command line as indicated below.+ </para>+ <para>+ It is an error if the generated command line for a+ given bin is too large for the system.+ </para>+ <para>+ A nonzero exit code from any COMMAND will cause+ &datapacker; to terminate. If COMMAND contains+ quotes, don't forget to quote the entire command,+ as in:+ </para>+ <programlisting>+datapacker '--action=exec:echo "Bin: $1"; shift; ls "$@"'+ </programlisting>+ <para>+ The arguments to the given command will be:+ </para>+ <itemizedlist>+ <listitem><para>+ <literal>argv[0]</literal> ($0 in shell) will+ be the name of the shell used to invoke the+ command -- <literal>$SHELL</literal> or+ <literal>/bin/sh</literal>.+ </para>+ </listitem>+ <listitem><para>+ <literal>argv[1]</literal> ($1 in shell) will+ be the bin number, formatted according to+ <option>-b</option>.</para>+ </listitem>+ <listitem><para>+ <literal>argv[2]</literal> and on ($2 and on+ in shell) will be the files to place in that+ bin+ </para>+ </listitem>+ </itemizedlist>+ </listitem>+ </varlistentry>++ <varlistentry>+ <term>hardlink</term>+ <listitem>+ <para>+ For each file, create a hardlink at+ <replaceable>bin</replaceable>/<replaceable>filename</replaceable>+ pointing to the original input filename. Creates+ the directory <replaceable>bin</replaceable> as+ necessary. Alternative locations and formats for+ <replaceable>bin</replaceable> can be specified+ with <option>-b</option>. All bin directories and+ all input must reside on the same filesystem.+ </para>+ <para>+ After you are done processing the results of the+ bin, you may safely delete the bins without+ deleting original data. Alternatively, you could+ leave the bins and delete the original data.+ Either approach will be workable.+ </para>+ <para>+ It is an error to attempt to make a hard link+ across filesystems, or to have two input files+ with the same filename in different paths.+ &datapacker; will exit on either of these situations.+ </para>+ </listitem>+ </varlistentry>++ <varlistentry>+ <term>symlink</term>+ <listitem>+ <para>Like <option>hardlink</option>, but create+ symlinks instead. Symlinks can span filesystems,+ but you will lose information if you remove the+ original (pre-bin) data. Like+ <option>hardlink</option>, it is an error to have a+ single filename occur in multiple input directories+ with this option.+ </para>+ </listitem>+ </varlistentry>+ </variablelist>+ </listitem>+ </varlistentry>++ <varlistentry>+ <term>-b <replaceable>FORMAT</replaceable></term>+ <term>--binfmt=<replaceable>FORMAT</replaceable></term>+ <listitem>+ <para>+ Defines the output format for the bin name. This format+ is given as a <literal>%d</literal> input to a function+ that interprets it as+ <application>printf</application>(3) would.+ This can be useful both to define the name and the+ location of your bins. When running &datapacker; with+ certain arguments, the bin format can be taken to be a+ directory in which files in that bin are linked. The+ default is <literal>%03d</literal>, which outputs+ integers with leading zeros to make all bin names at+ least three characters wide.+ </para>+ <para>+ Other useful variants could include+ <literal>destdir/%d</literal> to put the string+ <literal>"destdir/"</literal> in front of the bin number,+ which is rendered without leading zeros.+ </para>+ </listitem>+ </varlistentry>++ <varlistentry>+ <term>-d</term>+ <term>--debug</term>+ <listitem>+ <para>+ Enable debug mode. This is here for future expansion+ and does not currently have any effect.+ </para>+ </listitem>+ </varlistentry>++ <varlistentry>+ <term>--help</term>+ <listitem>+ <para>+ Display brief usage information and exit.+ </para>+ </listitem>+ </varlistentry>++ <varlistentry>+ <term>-p</term>+ <term>--preserve-order</term>+ <listitem>+ <para>+ Normally, &datapacker; uses an efficient algorithm that+ tries to rearrange files such that the number of bins+ required is minimized. Sometimes you may instead wish+ to preserve the ordering of files at the expense of+ potentially using more bins. In these cases, you would+ want to use this option.+ </para>+ <para>+ As an example of such a situation: perhaps you have+ taken one photo a day for several years. You would like+ to archive these photos to CD, but you want them to be+ stored in chronological order. You have named the files+ such that the names indicate order, so you can pass the+ file list to &datapacker; using <option>-p</option> to+ preserve the ordering in your bins. Thus, bin 1 will+ contain the oldest files, bin 2 the second-oldest, and+ so on. If <option>-p</option> wasn't used, you might+ use fewer CDs, but the photos would be spread out across+ all CDs without preserving your chronological order.+ </para>+ </listitem>+ </varlistentry>++ <varlistentry>+ <term>-s <replaceable>SIZE</replaceable></term>+ <term>--size=<replaceable>SIZE</replaceable></term>+ <listitem>+ <para>+ Gives the size of each bin in bytes. Suffixes such as+ "k", "m", "g", etc. may be used to indicate kilobytes,+ megabytes, gigabytes, and so forth. Numbers such as+ <literal>1.5g</literal> are valid, and if needed, will+ be rounded to the nearest possible integer value.+ </para>+ <para>+ The size of the first bin may be overridden with+ <option>-S</option>.+ </para>+ <para>+ Here are the sizes of some commonly-used bins. For each+ item, I have provided you with both the underlying+ recording capacity of the disc and a suggested value for+ <option>-s</option>. The suggested value for+ <option>-s</option> is lower than the underlying+ capacity because there is overhead imposed by the+ filesystem stored on the disc. You will perhaps find+ that the suggested value for <option>-s</option> is+ lower than optimal for discs that contain few large+ files, and higher than desired for discs that contain+ vast amounts of small files.+ </para>+ <itemizedlist>+ <listitem><para>CD-ROM, 74-minute (standard): 650m / 600m</para>+ </listitem>+ <listitem><para>CD-ROM, 80-minute: 703m / 650m</para>+ </listitem>+ <listitem><para>CD-ROM, 90-minute: 790m / 740m</para>+ </listitem>+ <listitem><para>CD-ROM, 99-minute: 870m / 820m</para>+ </listitem>+ <listitem><para>DVD+-R: 4.377g / 4g</para>+ </listitem>+ <listitem><para>DVD+R, dual layer: 8.5g / 8g</para>+ </listitem>+ </itemizedlist>+ </listitem>+ </varlistentry>+ + <varlistentry>+ <term>-S</term>+ <term>--size-first</term>+ <listitem>+ <para>+ The size of the first bin. If not given, defaults to+ the value given with <option>-s</option>. This may be+ useful if you will be using a mechanism outside+ &datapacker; to add additional information to the first+ bin: perhaps an index of which bin has which file, the+ information necessary to make a CD bootable, etc. You+ may use the same suffixes as with <option>-s</option>+ with this option.+ </para>+ </listitem>+ </varlistentry>+ </variablelist>+ <refsect2>+ <title>File Specification</title>+ <para>+ After the options, you must supply one or more files to+ consider for packing into bins. Alternatively, instead of+ listing files on the command line, you may list a single+ hyphen (<literal>-</literal>), which tells &datapacker; to+ read the list of files from standard input (stdin).+ </para>+ <para>+ &datapacker; never recurses into subdirectories. If you+ want a recursive search -- finding all files in a given+ directory and all its subdirectories -- see the second+ example in the EXAMPLES section below. &datapacker; is+ designed to integrate with+ <application>find</application>(1) in this situation to+ let you take advantage of find's built-in powerful recursion+ and filtering features.+ </para>+ <para>+ When reading files from standard input, it is assumed that+ the list contains one distinct filename per line. Seasoned+ POSIX veterans will recognize the inherent limitations in+ this format. For that reason, when given+ <option>-0</option> in conjunction with the single file+ <literal>-</literal>, &datapacker; will instead expect, on+ standard input, a list of files, each one terminated by an+ ASCII NULL character. Such a list can be easily generated+ with <application>find</application>(1) using its+ <option>-print0</option> option.+ </para>+ </refsect2>+ </refsect1>++ <refsect1>+ <title>Examples</title>+ <itemizedlist>+ <listitem>+ <para>+ Put all JPEG images in <literal>~/Pictures</literal>+ into bins (using hardlinks) under the pre-existing directory+ <literal>~/bins</literal>, no more than 600MB per bin:+ </para>+ <programlisting>+datapacker -b ~/bins/%03d -s 600m -a hardlink ~/Pictures/*.jpg+ </programlisting>+ </listitem>++ <listitem>+ <para>+ Put all files in <literal>~/Pictures</literal> or any+ subdirectory thereof into 600MB bins under ~/bins, using+ hardlinking. This is a simple example to follow if you+ simply want a recursive search of all files.+ </para>+ <programlisting>+find ~/Pictures -type f -print0 | \+ datapacker -0 -b ~/bins/%03d -s 600m -a hardlink -+ </programlisting>+ </listitem>+ <listitem>+ <para>+ Find all JPEG images in <literal>~/Pictures</literal> or+ any subdirectory thereof, put them into bins (using+ hardlinks) under the pre-existing directory+ <literal>~/bins</literal>, no more than 600MB per bin:+ </para>+ <programlisting>+find ~/Pictures -name "*.jpg" -print0 | \+ datapacker -0 -b ~/bins/%03d -s 600m -a hardlink -+ </programlisting>+ </listitem>++ <listitem>+ <para>+ Find all JPEG images as above, put them in 4GB bins,+ but instead of putting them+ anywhere, calculate the size of each bin and display it.+ </para>+ <programlisting>+find ~/Pictures -name "*.jpg" -print0 | \+ datapacker -0 -b ~/bins/%03d -s 4g \+ '--action=exec:echo -n "$1: "; shift; du -ch "$@" | grep total' \+ -+ </programlisting>+ <para>+ This will display output like so:+ </para>+ <programlisting>+/home/jgoerzen/bins/001: 4.0G total+/home/jgoerzen/bins/002: 4.0G total+/home/jgoerzen/bins/003: 4.0G total+/home/jgoerzen/bins/004: 992M total+ </programlisting>+ <para>+ Note: the <literal>grep</literal> pattern in this example+ is simple, but will cause unexpected results if any+ matching file contains the word "total".+ </para>+ </listitem>++ <listitem>+ <para>+ Find all JPEG images as above, and generate 600MB ISO+ images of them in ~/bins. This will generate the ISO+ images directly without ever hardlinking files into+ ~/bins.+ </para>+ <programlisting>+find ~/Pictures -name "*.jpg" -print0 | \+ datapacker -0 -b ~/bins/%03d.iso -s 4g \+ '--action=exec:BIN="$1"; shift; mkisofs -r -J -o "$BIN" "$@"' \+ -+ </programlisting>+ <para>+ You could, if you so desired, pipe this result directly+ into a DVD-burning application. Or, you could use+ <literal>growisofs</literal> to burn a DVD+R in a single+ step.+ </para>+ </listitem>+ </itemizedlist>+ </refsect1>+ + <refsect1>+ <title>Errors</title>+ <para>+ It is an error if any specified file exceeds the value given+ with <literal>-s</literal> or <literal>-S</literal>.+ </para>+ <para>+ It is also an error if any specified files disappear while+ &datapacker; is running.+ </para>+ </refsect1>+ <refsect1>+ <title>Bugs</title>+ <para>+ Reports of bugs should be reported online at the+ &datapacker; homepage.+ Debian users are encouraged to instead use the+ Debian+ bug-tracking system.+ </para>+ </refsect1>+++ <refsect1>+ <title>Copyright</title>+ <para>&datapacker;, and this manual, are Copyright © 2008 John Goerzen.</para>+ <para>+ All code, documentation, and build scripts are under the following+ license unless otherwise noted:+ </para>+ <para>+ This program is free software: you can redistribute it and/or modify+ it under the terms of the GNU General Public License as published by+ the Free Software Foundation, either version 3 of the License, or+ (at your option) any later version.+ </para>+ <para>+ This program is distributed in the hope that it will be useful,+ but WITHOUT ANY WARRANTY; without even the implied warranty of+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the+ GNU General Public License for more details.+ </para>+ <para>+ You should have received a copy of the GNU General Public License+ along with this program. If not, see+ <ulink url="http://www.gnu.org/licenses/"></ulink>.+ </para>+ <para>+The GNU General Public License is available in the file COPYING in the source+distribution. Debian GNU/Linux users may find this in+/usr/share/common-licenses/GPL-3.+ </para>+ <para>+If the GPL is unacceptable for your uses, please e-mail me; alternative+terms can be negotiated for your project.+ </para>+ </refsect1>++ <refsect1>+ <title>Author</title>+ <para>&datapacker;, its libraries, documentation, and all included files, except where+ noted, was written by John Goerzen <email>jgoerzen@complete.org</email> and+ copyright is held as stated in the COPYRIGHT section.+ </para>++ <para>+ &datapacker; may be downloaded, and information found, from its+ <ulink url="http://software.complete.org/datapacker">homepage</ulink>.+ </para>++ </refsect1>++ <refsect1>+ <title>See Also</title>+ <para><application>mkisofs</application>(1),+ <application>genisoimage</application>(1)+ </para>+ </refsect1>+ </refentry>+</reference>++<!--+Local Variables:+mode: sgml+sgml-set-face: T+End:+-->