updated reserve file info, fixes, html structure
git-svn-id: https://svn.code.sf.net/p/nsis/code/NSIS/trunk@3265 212acab6-be3b-0410-9dea-997c60f758d6
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joostverburg
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3 changed files with 166 additions and 177 deletions
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@ -1,138 +1,131 @@
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
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<html>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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<title>VPatch 2</title>
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<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
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<meta http-equiv="Content-Type" content="text/html; charset=us-ascii" />
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<style type="text/css">
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/*<![CDATA[*/
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body
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{
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padding: 10px;
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background-color: #F0F0F0;
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font-family: Verdana, Arial, Helvetica, sans-serif;
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font-size: 10pt;
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font-weight: normal;
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}
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{
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padding: 10px;
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background-color: #F0F0F0;
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font-family: Verdana, Arial, Helvetica, sans-serif;
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font-size: 13px;
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font-weight: normal;
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}
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center
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{
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text-align: center;
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}
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p
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{
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font-size: 100%;
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margin: 20px;
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}
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.center
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{
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text-align: center;
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}
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table
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{
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margin: auto;
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text-align: left;
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background-color: #FFFFFF;
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}
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{
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margin: auto;
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text-align: left;
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background-color: #FFFFFF;
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}
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.maintable
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{
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border: 2px solid #376EAB;
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}
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{
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border: 2px solid #376EAB;
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}
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.margin
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{
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margin: 20px;
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}
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.parameter
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{
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font-weight: bold;
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color: #6586AC;
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}
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.text
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{
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margin: 20px;
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}
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.bold
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{
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font-weight: bold;
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}
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.italic
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{
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font-style: italic;
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}
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h1
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{
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font-size: 220%;
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color: #333333;
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font-weight: normal;
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text-align: center;
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margin: 20px;
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}
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h2
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{
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font-size: 165%;
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color: #7A7272;
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font-weight: normal;
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}
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h3
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{
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font-size: 140%;
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font-weight: normal
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color: #303030;
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margin: 20px;
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}
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.bigheader
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{
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margin: 10px;
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font-size: 24pt;
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color: #333333;
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text-align: center;
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}
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pre {
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font-size: 100%;
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margin: 20px;
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}
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.header
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{
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font-size: 14pt;
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color: #7A7272;
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}
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.subheader
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{
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margin: 20px;
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font-size: 11pt;
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font-weight: bold;
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color: #303030;
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}
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div
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{
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margin: 20px;
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}
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.footer
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{
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margin: 5px 5px 5px 5px;
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text-align: right;
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font-size: 8pt;
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color: #909090;
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}
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a:link, a:visited, a:active
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{
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color: #294F75;
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text-decoration: none;
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}
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{
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color: #294F75;
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text-decoration: none;
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}
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a:hover
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{
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color: #182634;
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text-decoration: none;
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}
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{
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color: #182634;
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text-decoration: underline;
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}
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/*]]>*/
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</style>
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</head>
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<body>
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<div class="center">
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<table width="750" class="maintable" cellspacing="0" cellpadding="0">
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<tr><td>
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<table cellspacing="0" cellpadding="0">
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<tr>
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<td><p class="bigheader">VPatch 2</p></td>
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</tr>
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<tr>
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<td><div class="margin">
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<p class="header">Introduction</p>
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<p class="text">VPatch allows to create a patch file to update previous versions of
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your software. The GenPat utitily generates the patch file. The plug-in can use the
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patch to update a file. Using a patch, you can reduce the download size of your
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updates, because only the differences between the files are included in the patch
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file.</p>
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<p class="header">How to use</p>
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<p class="subheader">Generate the patch file</p>
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<p class="text">Make sure you have the source file (original version) and the target file (version
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to update to). For example, DATA.DTA (currently on user system) and DATA_20.DTA
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(version 2.0 of this data file). Now call the command line tool GenPat.exe:</p>
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<pre class="margin">GENPAT data.dta data_20.dta data.pat</pre>
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<p class="text">Now, the patch will be generated, this will take some time.</p>
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<p class="text">Using the /B=(BlockSize) parameter of the GenPat utility (put it after
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the filenames), you can use a different block size. A smaller block size may result in
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a smaller patch, but the generation will take more time (the default blocksize is 64).</p>
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<p class="subheader">Update the file in your installer</p>
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<p class="text">Use the VPatch plug-in to update a file using a patch file:</p>
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<pre class="margin">vpatch::vpatchfile "pathfile.pat" "source.file" "new.file"</pre>
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<p class="text">The result of the patch operating will be added to the stack and can
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be one of the following texts:</p>
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<td>
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<h1>VPatch 2</h1>
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<div>
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<h2>Introduction</h2>
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<p>VPatch allows to create a patch file to update previous versions of your software. The GenPat
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utitily generates the patch file. The plug-in can use the patch to update a file. Using a patch,
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you can reduce the download size of your updates, because only the differences between the files
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are included in the patch file.</p>
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<h2>How to use</h2>
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<h3>Generate the patch file</h3>
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<p>Make sure you have the source file (original version) and the target file (version to update
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to). For example, DATA.DTA (currently on user system) and DATA_20.DTA (version 2.0 of this data
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file). Now call the command line tool GenPat.exe:</p>
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<pre>
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GENPAT data.dta data_20.dta data.pat
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</pre>
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<p>Now, the patch will be generated, this will take some time.</p>
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<p>Using the /B=(BlockSize) parameter of the GenPat utility (put it after the filenames), you can
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use a different block size. A smaller block size may result in a smaller patch, but the generation
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will take more time (the default blocksize is 64).</p>
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<h3>Update the file during installation</h3>
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<p>Use the VPatch plug-in to update a file using a patch file:</p>
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<pre>
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vpatch::vpatchfile "pathfile.pat" "source.file" "new.file"
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</pre>
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<p>The result of the patch operating will be added to the stack and can be one of the following
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texts:</p>
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<ul>
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<li>OK</li>
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<li>OK, new version already installed</li>
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@ -140,53 +133,53 @@ be one of the following texts:</p>
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<li>Patch data is invalid or corrupt</li>
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<li>No suitable patches were found</li>
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</ul>
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<p class="text">Check <a href="example.nsi">example.nsi</a> for an example.</p>
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<p class="subheader">Multiple patches in one file</p>
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<p class="text">GenPat appends a patch to the file you specified. If there is already a patch
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for the same orginal file in the patch file, the patch will be replaced. For example, if you want
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to be able to upgrade version 1 and 2 to version 3, you can put a 1 > 3 and 2 > 3 patch in one
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file.</p>
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<p class="text">You can also put patches for different files in one patch file, for example, a
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patch from file A version 1 to file A version 2 and a patch from file B version 1 to
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file B version 2. Just call the plug-in multiple times with the same patch file. It
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will automatically select the right patch (based on the file CRC).</p>
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<p class="header">Source code</p>
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<p class="subheader">NSIS plug-in (C++)</p>
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<p class="text">The source of the NSIS plug-in that applies patches can be found in the
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Source\Plugin folder.</p>
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<p class="subheader">Patch Generator (Delphi)</p>
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<p class="text">The most interesting part of VPatch, the actual patch generation algoritm,
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can be found in Source\GenPat\PatchGenerator.pas. The header of that file contains a brief
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explanation of the algoritm as well.</p>
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<p class="subheader">User interface (Delphi)</p>
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<p class="text">A user interface is included as well, which you will have to build yourself
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because the GUI executable was too large to include. Besides Borland Delphi 6 or higher
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(you can use the freely available Personal edition), you will also need to install the
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<a href="http://www.delphi-gems.com">VirtualTreeView</a> component by Mike Lischke.</p>
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<p class="header">Version history</p>
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<p>Check <a href="example.nsi">example.nsi</a> for an example.</p>
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<h3>Multiple patches in one file</h3>
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<p>GenPat appends a patch to the file you specified. If there is already a patch for the same
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orginal file in the patch file, the patch will be replaced. For example, if you want to be able to
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upgrade version 1 and 2 to version 3, you can put a 1 > 3 and 2 > 3 patch in one file.</p>
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<p>You can also put patches for different files in one patch file, for example, a patch from file A
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version 1 to file A version 2 and a patch from file B version 1 to file B version 2. Just call the
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plug-in multiple times with the same patch file. It will automatically select the right patch
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(based on the file CRC).</p>
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<h2>Source code</h2>
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<h3>NSIS plug-in (C++)</h3>
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<p>The source of the NSIS plug-in that applies patches can be found in the Source\Plugin
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folder.</p>
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<h3>Patch Generator (Delphi)</h3>
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<p>The most interesting part of VPatch, the actual patch generation algoritm, can be found in
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Source\GenPat\PatchGenerator.pas. The header of that file contains a brief explanation of the
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algoritm as well.</p>
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<h3>User interface (Delphi)</h3>
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<p>A user interface is included as well, which you will have to build yourself because the GUI
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executable was too large to include. Besides Borland Delphi 6 or higher (you can use the freely
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available Personal edition), you will also need to install the <a href=
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"http://www.delphi-gems.com">VirtualTreeView</a> component by Mike Lischke.</p>
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<h2>Version history</h2>
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<ul>
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<li>2.0 final
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<ul>
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<li>Cleaned up source code for the patch generator, which is now included (this code is
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written in Borland Delphi 6 and compiles with the freely available Personal edition).</li>
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<li>Cleaned up source code for the patch generator, which is now included (this code is written in
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Borland Delphi 6 and compiles with the freely available Personal edition).</li>
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</ul>
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</li>
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<li>2.0 beta 2
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<li>2.0 beta 2
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<ul>
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<li>All new algorithm used in the patch generator: much faster (up to 90%) while using
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smaller block sizes (higher compression)</li>
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<li>All new algorithm used in the patch generator: much faster (up to 90%) while using smaller
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block sizes (higher compression)</li>
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<li>Created a NSIS 2 plugin</li>
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<li>Works with small files</li>
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<li>Replaces existing patch in file if original file CRC is identical</li>
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</ul>
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</li>
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</ul>
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<p class="header">Credits</p>
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<p class="text">Written by Koen van de Sande<br />
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<h2>Credits</h2>
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<p>Written by Koen van de Sande<br />
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C plug-in by Edgewize<br />
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New documentation and example by Joost Verburg</p>
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<p class="header">License</p>
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<pre class="margin">Copyright (C) 2001-2003 Koen van de Sande
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<h2>License</h2>
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<pre>
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Copyright (C) 2001-2003 Koen van de Sande
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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@ -203,13 +196,10 @@ it freely, subject to the following restrictions:
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2. Altered versions must be plainly marked as such,
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and must not be misrepresented as being the original software.
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3. This notice may not be removed or altered from any distribution.
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</pre>
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</div></td>
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</tr>
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</table>
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</td></tr>
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</pre></div>
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</td>
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</tr>
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</table>
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</div>
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</body>
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</html>
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</html>
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