design
git-svn-id: https://svn.code.sf.net/p/nsis/code/NSIS/trunk@3474 212acab6-be3b-0410-9dea-997c60f758d6
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joostverburg
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2 changed files with 397 additions and 257 deletions
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@ -14,12 +14,12 @@ body
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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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text-align: left;
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}
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p
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p, li
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{
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font-size: 100%;
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margin: 20px;
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font-size: 13px;
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}
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.center
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@ -30,7 +30,7 @@ p
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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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font-size: 13px;
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background-color: #FFFFFF;
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}
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@ -48,31 +48,29 @@ table
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h1
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{
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font-size: 220%;
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font-size: 30px;
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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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margin-top: 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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font-size: 20px;
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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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font-size: 17px;
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font-weight: bold;
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color: #303030;
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margin: 20px;
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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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font-size: 13px;
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}
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div
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@ -85,7 +83,7 @@ a:link, a:visited, a:active
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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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@ -97,19 +95,23 @@ a:hover
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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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<table width="750" class="maintable" cellspacing="0" cellpadding="0" align="center">
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<tr>
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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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<div>
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<p>VPatch allows to create a patch file to update previous versions
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of your software. The GenPat utitily generates the patch file. The
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plug-in can use the patch to update a file. Using a patch, you can
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reduce the download size of your updates, because only the differences
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between the files are included in the patch file.</p>
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</div>
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<h2>How to use</h2>
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<div>
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<h3>Generate the patch file</h3>
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<div>
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<p>Make sure you have the source file (original version) and the target
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file (version to update to). For example, DATA.DTA (currently on user
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system) and DATA_20.DTA (version 2.0 of this data file). Now call
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@ -122,7 +124,9 @@ GENPAT data.dta data_20.dta data.pat
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after the filenames), you can use a different block size. A smaller
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block size may result in a smaller patch, but the generation will
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take more time (the default blocksize is 64).</p>
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</div>
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<h3>Update the file during installation</h3>
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<div>
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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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@ -137,7 +141,9 @@ vpatch::vpatchfile "pathfile.pat" "source.file" "new.file"
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<li>No suitable patches were found</li>
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</ul>
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<p>Check <a href="example.nsi">example.nsi</a> for an example.</p>
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</div>
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<h3>Multiple patches in one file</h3>
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<div>
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<p>GenPat appends a patch to the file you specified. If there is already
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a patch for the same orginal file in the patch file, the patch will
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be replaced. For example, if you want to be able to upgrade version
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@ -148,7 +154,9 @@ vpatch::vpatchfile "pathfile.pat" "source.file" "new.file"
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from file B version 1 to file B version 2. Just call the plug-in multiple
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times with the same patch file. It will automatically select the right
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patch (based on the file CRC).</p>
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</div>
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<h3>GenPat exit codes</h3>
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<div>
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<p>In version 2.1 support was added for exit codes (known as error levels
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in the DOS period) to GenPat. GenPat will return an exit code based
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on succes of the patch generation. Here is a list of the possible
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@ -202,22 +210,33 @@ vpatch::vpatchfile "pathfile.pat" "source.file" "new.file"
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<p>These exit codes can be useful when you generate patch files through
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a script.</p>
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</div>
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</div>
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</div>
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<div>
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<h2>Source code</h2>
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<div>
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<h3>NSIS plug-in (C++)</h3>
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<div>
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<p>The source of the NSIS plug-in that applies patches can be found
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in the Source\Plugin folder.</p>
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</div>
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<h3>Patch Generator (Delphi)</h3>
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<div>
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<p>The most interesting part of VPatch, the actual patch generation
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algoritm, can be found in Source\GenPat\PatchGenerator.pas. The header
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of that file contains a brief explanation of the algoritm as well.</p>
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</div>
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<h3>User interface (Delphi)</h3>
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<div>
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<p>A user interface is included as well, which you will have to build
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yourself because the GUI executable was too large to include. Besides
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Borland Delphi 6 or higher (you can use the freely available Personal
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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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</div>
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</div>
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<h2>Version history</h2>
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<div>
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<ul>
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<li>2.1
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<ul>
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@ -247,11 +266,15 @@ vpatch::vpatchfile "pathfile.pat" "source.file" "new.file"
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</ul>
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</li>
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</ul>
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</div>
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<h2>Credits</h2>
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<div>
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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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</div>
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<h2>License</h2>
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<div>
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<pre>
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Copyright (C) 2001-2003 Koen van de Sande
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@ -271,6 +294,7 @@ it freely, subject to the following restrictions:
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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>
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</div>
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</td>
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</tr>
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