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| 20 | <li><a href="../installation/">Installation</a></li> |
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| 22 | <li><a href="../user_guide/">User Guide</a></li> |
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| 27 | |
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| 28 | <div class="page-header"> |
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| 29 | <div class="fcm-page-content pull-right well well-sm"></div> |
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| 30 | <h1>FCM 1.1 Release Notes <small>06 November 2006</small></h1> |
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| 31 | </div> |
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| 32 | |
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| 33 | <div class="container"> |
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| 34 | <div class="row"> |
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| 35 | <div class="col-md-12"> |
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| 36 | |
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| 37 | <p>These are the release notes for FCM release 1.1. You can use this release |
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| 38 | of FCM freely under the terms of the FCM LICENSE, which you should receive |
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| 39 | with the distribution of this release. Release 1.1 is the first external |
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| 40 | release of FCM. (Release 1.0, 30 November 2005, was an internal Met Office |
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| 41 | release which marked the start of the main migration of systems into FCM.)</p> |
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| 42 | |
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| 43 | <p>FCM is maintained by the FCM team at the Met Office. Please feedback any |
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| 44 | bug reports or feature requests to us by <a href= |
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| 45 | "mailto:fcm-team@metoffice.gov.uk">e-mail</a>.</p> |
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| 46 | |
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| 47 | <h2 id="new">What's New?</h2> |
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| 48 | |
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| 49 | <p>Build system:</p> |
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| 50 | |
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| 51 | <ul> |
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| 52 | <li>Support building of Fortran <code>BLOCKDATA</code> program units.</li> |
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| 53 | |
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| 54 | <li>Option to generate Fortran interface files in lower case names after |
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| 55 | their program units.</li> |
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| 56 | |
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| 57 | <li>Allow renaming of main program targets using the build configuration |
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| 58 | file.</li> |
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| 59 | |
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| 60 | <li>The <samp>fcm_env.ksh</samp> file now provides an environment variable |
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| 61 | for the <samp>etc/</samp> sub-directory of the build which can be used if |
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| 62 | you are <em>building</em> data files.</li> |
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| 63 | |
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| 64 | <li>The build root directory is now locked while a build is running. This |
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| 65 | prevents multiple instances of build running in the same directory. |
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| 66 | However, you can bypass the lock if you specify the new |
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| 67 | <code>--ignore-lock</code> option with <code>fcm build</code>.</li> |
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| 68 | </ul> |
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| 69 | |
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| 70 | <p>Extract system:</p> |
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| 71 | |
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| 72 | <ul> |
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| 73 | <li>The destination root directory is now locked while an extract is |
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| 74 | running. This prevents multiple instances of extract running in the same |
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| 75 | directory. However, you can bypass the lock if you specify the new |
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| 76 | <code>--ignore-lock</code> option with <code>fcm extract</code>.</li> |
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| 77 | </ul> |
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| 78 | |
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| 79 | <p>Code management commands:</p> |
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| 80 | |
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| 81 | <ul> |
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| 82 | <li><code>fcm merge</code> now supports custom and reverse modes.</li> |
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| 83 | |
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| 84 | <li><code>fcm merge</code> now allows automatic merges in sub-trees if it |
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| 85 | is safe.</li> |
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| 86 | |
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| 87 | <li><code>fcm merge</code> now handles automatic merges from sibling |
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| 88 | branches that are created at different revisions of the parent.</li> |
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| 89 | |
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| 90 | <li><code>fcm branch, fcm diff --branch</code> and <code>fcm merge</code> |
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| 91 | can now handle creation, diff and automatic merge of a branch of a |
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| 92 | branch.</li> |
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| 93 | |
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| 94 | <li><code>fcm switch</code> is improved to allow safer switches of your |
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| 95 | working copy to point to different branches in your project.</li> |
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| 96 | |
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| 97 | <li><code>fcm commit</code> now displays your location in the branch, and |
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| 98 | extra warning when you are committing to the trunk of a project.</li> |
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| 99 | |
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| 100 | <li>New <code>fcm mkpatch</code> command.</li> |
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| 101 | </ul> |
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| 102 | |
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| 103 | <p>General:</p> |
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| 104 | |
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| 105 | <ul> |
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| 106 | <li>Error handling is improved.</li> |
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| 107 | |
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| 108 | <li>The User Guide is now complete, with a much improved tutorial.</li> |
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| 109 | |
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| 110 | <li>New document: Fortran coding standard for FCM.</li> |
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| 111 | </ul> |
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| 112 | |
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| 113 | <h2 id="fix">Minor Enhancements & Bug Fixes</h2> |
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| 114 | |
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| 115 | <p>Build system:</p> |
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| 116 | |
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| 117 | <ul> |
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| 118 | <li>Ignore empty Fortran source files, so that alternate sections can be |
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| 119 | handled correctly.</li> |
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| 120 | |
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| 121 | <li>Handle recursive header file dependency correctly in pre-processing |
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| 122 | stage.</li> |
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| 123 | |
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| 124 | <li>Identify changes in pre-processed source file, the pre-processor |
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| 125 | options and keys correctly in incremental builds.</li> |
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| 126 | |
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| 127 | <li>Improve speed of pre-processing in incremental builds by not performing |
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| 128 | any unnecessary null-action pre-processing.</li> |
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| 129 | |
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| 130 | <li>Load archiver no longer includes main program objects.</li> |
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| 131 | |
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| 132 | <li>It is now possible for a sub-package to exclude particular types of |
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| 133 | dependencies.</li> |
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| 134 | </ul> |
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| 135 | |
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| 136 | <p>Extract system:</p> |
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| 137 | |
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| 138 | <ul> |
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| 139 | <li>Sub-directories are now extracted with the non-recursive mode of |
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| 140 | <code>svn export</code>.</li> |
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| 141 | |
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| 142 | <li>Peg revisions should now be handled correctly in <var>INC</var> extract |
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| 143 | declarations.</li> |
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| 144 | |
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| 145 | <li>The command should now fail if a declared source directory does not |
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| 146 | exist or if the update of an extract destination fails.</li> |
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| 147 | </ul> |
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| 148 | |
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| 149 | <p>Code management commands:</p> |
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| 150 | |
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| 151 | <ul> |
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| 152 | <li><code>fcm branch --info</code> and <code>fcm diff</code> can now take a |
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| 153 | <code>PATH</code> as an argument.</li> |
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| 154 | |
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| 155 | <li>The <code>--ticket</code> option of <code>fcm branch --create</code> |
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| 156 | can now accept multiple tickets.</li> |
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| 157 | |
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| 158 | <li><code>fcm branch --info</code> and <code>fcm diff --branch</code> |
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| 159 | should now work correctly in a sub-tree of a branch.</li> |
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| 160 | |
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| 161 | <li><code>fcm branch --create</code> no longer offers to checkout the |
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| 162 | branch.</li> |
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| 163 | |
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| 164 | <li><code>fcm commit</code> no longer fails when adding a new symbolic |
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| 165 | link.</li> |
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| 166 | |
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| 167 | <li>The <code>--password</code> option is now supported by the <code>fcm |
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| 168 | branch --create</code>, <code>fcm branch --delete</code>, <code>fcm |
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| 169 | commit</code> and <code>fcm delete</code> commands.</li> |
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| 170 | |
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| 171 | <li>Empty arguments to code management commands are now parsed |
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| 172 | correctly.</li> |
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| 173 | |
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| 174 | <li>The <code>fcm diff --graphical</code> option no longer fails with |
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| 175 | binary files.</li> |
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| 176 | |
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| 177 | <li>FCM will always set the environment variable <var>LANG=en_GB</var> |
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| 178 | before running Subversion commands. This prevents failure of FCM when it |
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| 179 | attempts to parse output from Subversion commands when a different |
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| 180 | <var>LANG</var> setting is used.</li> |
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| 181 | </ul> |
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| 182 | |
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| 183 | <p>General:</p> |
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| 184 | |
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| 185 | <ul> |
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| 186 | <li>Various other very minor enhancements and bug fixes.</li> |
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| 187 | </ul> |
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| 188 | |
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| 189 | <h2 id="req">System Requirements</h2> |
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| 190 | |
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| 191 | <h3 id="req_perl">Perl</h3> |
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| 192 | |
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| 193 | <p>The core part of FCM is a set of Perl scripts and modules. For the build |
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| 194 | system to work, you need the following modules installed:</p> |
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| 195 | |
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| 196 | <ul> |
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| 197 | <li>Carp</li> |
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| 198 | |
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| 199 | <li>Cwd</li> |
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| 200 | |
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| 201 | <li>File::Basename</li> |
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| 202 | |
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| 203 | <li>File::Compare</li> |
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| 204 | |
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| 205 | <li>File::Find</li> |
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| 206 | |
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| 207 | <li>File::Path</li> |
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| 208 | |
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| 209 | <li>File::Spec::Functions</li> |
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| 210 | |
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| 211 | <li>File::Spec</li> |
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| 212 | |
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| 213 | <li>FindBin</li> |
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| 214 | |
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| 215 | <li>Getopt::Long</li> |
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| 216 | |
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| 217 | <li>POSIX</li> |
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| 218 | </ul> |
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| 219 | |
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| 220 | <p>The code management commands and extract system need the following |
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| 221 | additional modules installed:</p> |
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| 222 | |
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| 223 | <ul> |
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| 224 | <li>File::Temp</li> |
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| 225 | |
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| 226 | <li>Getopt::Long</li> |
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| 227 | |
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| 228 | <li>HTTP::Date</li> |
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| 229 | |
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| 230 | <li>XML::DOM</li> |
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| 231 | </ul> |
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| 232 | |
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| 233 | <p>To use the simple GUI for some of the code management commands, you also |
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| 234 | need the following modules:</p> |
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| 235 | |
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| 236 | <ul> |
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| 237 | <li>Tk::ROText</li> |
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| 238 | |
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| 239 | <li>Tk</li> |
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| 240 | </ul> |
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| 241 | |
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| 242 | <p>At the Met Office we are currently using the complete FCM system with Perl |
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| 243 | 5.8.x. In addition the build system is being used with Perl 5.6.x.</p> |
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| 244 | |
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| 245 | <h3 id="req_svn">Subversion</h3> |
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| 246 | |
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| 247 | <p>To use the code management commands (and relevant parts of the extract |
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| 248 | system) you need to have <a href= |
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| 249 | "http://subversion.tigris.org/">Subversion</a> installed.</p> |
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| 250 | |
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| 251 | <ul> |
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| 252 | <li>FCM makes extensive use of peg revisions in both the code management |
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| 253 | and extract systems. This requires Subversion 1.2.0.</li> |
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| 254 | |
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| 255 | <li>At the Met Office we are currently using Subversion 1.3.2 (although |
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| 256 | 1.2.3 was used until very recently).</li> |
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| 257 | </ul> |
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| 258 | |
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| 259 | <p>Note that the extract system can mirror extracted code to a remote |
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| 260 | platform for building. Therefore it is only necessary to have Subversion |
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| 261 | installed on the platform where you do your code development. If you use |
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| 262 | other platforms purely for building and running then you do not need to have |
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| 263 | Subversion installed on these platforms.</p> |
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| 264 | |
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| 265 | <h3 id="req_trac">Trac</h3> |
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| 266 | |
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| 267 | <p>The use of <a href="http://trac.edgewall.org/">Trac</a> is entirely |
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| 268 | optional (although highly recommended if you are using Subversion). At the |
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| 269 | Met Office we are currently using version 0.9.6.</p> |
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| 270 | |
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| 271 | <h3 id="req_other">Other Requirements</h3> |
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| 272 | |
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| 273 | <p>The <code>fcm diff --graphical</code> and <code>fcm conflicts</code> |
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| 274 | commands require <a href="http://furius.ca/xxdiff/">xxdiff</a>. At the Met |
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| 275 | Office we are currently using version 3.1.</p> |
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| 276 | |
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| 277 | <p>The build system requires <a href= |
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| 278 | "http://www.gnu.org/software/make/make.html">GNU make</a>. At the Met Office |
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| 279 | we are currently using version 3.79.x and 3.80.</p> |
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| 280 | |
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| 281 | <p>Optionally, the build system can use <a href= |
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| 282 | "http://www.ifremer.fr/ditigo/molagnon/fortran90/">f90aib</a> to generate |
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| 283 | interface files. However, there is also a built in Perl based interface file |
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| 284 | generator which is quicker and better in most cases so you are unlikely to |
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| 285 | need f90aib unless you hit a problem with some particular code.</p> |
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| 286 | |
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| 287 | <p>FCM is intended to run on a Unix/Linux system. It is currently used at the |
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| 288 | Met Office on Linux (Red Hat 9 and Red Hat Enterprise 2.1 and 4.4) and HP-UX |
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| 289 | 11.00.</p> |
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| 290 | |
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| 291 | <h2 id="ins">Installation</h2> |
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| 292 | |
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| 293 | <p>FCM is distributed in the form of a compressed tar file. Un-pack the tar |
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| 294 | file into an appropriate location on your system. Then add the |
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| 295 | <samp>bin/</samp> directory into your <var>PATH</var>. Once you have done this |
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| 296 | you should now have full access to the FCM system, assuming that you have met |
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| 297 | the requirements described in the previous section.</p> |
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| 298 | |
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| 299 | <p>If you wish to define keywords for your systems you will need to create a |
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| 300 | file <samp>etc/fcm.cfg</samp>. An example file, <samp>fcm.cfg.eg</samp>, is |
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| 301 | provided which is a copy of the file currently used at the Met Office. For |
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| 302 | further details please refer to the section <a href= |
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| 303 | "../user_guide/system_admin.html#fcm-keywords">FCM keywords</a> in the System |
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| 304 | Admin chapter of the User Guide.</p> |
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| 305 | |
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| 306 | <p>The <samp>doc/</samp> directory contains all the system documentation.</p> |
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| 307 | |
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| 308 | <ul> |
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| 309 | <li><samp>doc/release_notes/</samp> contains these release notes. It also |
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| 310 | contains the release notes for all previous versions which may be useful if |
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| 311 | you have skipped any versions.</li> |
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| 312 | |
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| 313 | <li><samp>doc/user_guide/</samp> contains the FCM User Guide in both |
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| 314 | <a href="../user_guide/">HTML</a> and <a href= |
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| 315 | "../user_guide/fcm-user-guide.pdf">PDF</a> form.</li> |
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| 316 | |
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| 317 | <li><samp>doc/design/</samp> contains the <a href="../design/">FCM Detailed |
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| 318 | Design</a> document (currently in draft form).</li> |
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| 319 | |
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| 320 | <li><samp>doc/standards/</samp> contains the FCM <a href= |
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| 321 | "../standards/perl_standard.html">Perl</a> and <a href= |
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| 322 | "../standards/fortran_standard.html">Fortran</a> coding standards. The Perl |
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| 323 | standard describes the standards followed by the FCM code. The Fortran |
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| 324 | standard contains some <a href= |
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| 325 | "../standards/fortran_standard.html#fcm">specific advice</a> on the best |
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| 326 | way of writing Fortran code for use with FCM as well as more general advice |
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| 327 | on good practise.</li> |
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| 328 | </ul> |
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| 329 | |
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| 330 | <p>The <samp>tutorial/</samp> directory contains the files necessary to set |
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| 331 | up a tutorial repository. This will allow you to follow the <a href= |
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| 332 | "../user_guide/getting_started.html#tutorial">tutorial section</a> in the |
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| 333 | User Guide.</p> |
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| 334 | |
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| 335 | <ul> |
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| 336 | <li>The file <samp>tutorial/repos/tutorial.dump</samp> should be loaded |
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| 337 | into an empty repository using the <code>svnadmin load</code> command.</li> |
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| 338 | |
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| 339 | <li>The hook scripts in <samp>tutorial/hook/</samp> should then be |
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| 340 | installed in this repository in order to prevent any commits to the trunk. |
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| 341 | Note that the configuration file <samp>svnperms.conf</samp> assumes that |
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| 342 | the tutorial repository is called <samp>tutorial_svn</samp>. Please edit |
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| 343 | this file if you use a different name.</li> |
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| 344 | |
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| 345 | <li>The repository should be configured to allow users write access. You |
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| 346 | may find it easiest to simply allow anonymous access.</li> |
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| 347 | |
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| 348 | <li>A Trac system should be configured associated with the Tutorial |
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| 349 | repository. You then need to allow users write access. You may find it |
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| 350 | easiest to set up a number of guest accounts for this purpose.</li> |
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| 351 | </ul> |
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| 352 | |
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| 353 | <p>The <samp>templates/</samp> directory contains various example scripts |
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| 354 | which you may find useful. Note that these scripts are all specific to the |
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| 355 | Met Office and may contain hard coded paths and email addresses. They are |
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| 356 | provided in the hope that you may find them useful as templates for setting |
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| 357 | up similar scripts of your own. However, they should only be used after |
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| 358 | careful review to adapt them to your environment. The contents are as |
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| 359 | follows:</p> |
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| 360 | |
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| 361 | <dl> |
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| 362 | <dt>templates/hook/pre-commit</dt> |
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| 363 | |
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| 364 | <dd> |
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| 365 | This script restricts write-access to the repository by checking the |
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| 366 | following: |
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| 367 | |
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| 368 | <ul> |
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| 369 | <li>It executes the Subversion utility <code>svnperms.py</code> if it |
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| 370 | exists. This utility checks whether the author of the current |
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| 371 | transaction has enough permission to write to particular paths in the |
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| 372 | repository.</li> |
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| 373 | |
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| 374 | <li>It checks the disk space required by the current transaction. It |
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| 375 | fails the commit if it requires more than 5Mb of disk space.</li> |
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| 376 | </ul> |
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| 377 | </dd> |
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| 378 | |
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| 379 | <dt>templates/hook/post-commit</dt> |
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| 380 | |
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| 381 | <dd>A simple post-commit hook script which runs the script |
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| 382 | <code>post-commit-background</code> in the background.</dd> |
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| 383 | |
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| 384 | <dt>templates/hook/post-commit-background</dt> |
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| 385 | |
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| 386 | <dd> |
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| 387 | This script runs in the background after each commit. |
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| 388 | |
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| 389 | <ul> |
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| 390 | <li>It updates a <samp><repos>.latest</samp> file with the latest |
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| 391 | revision number.</li> |
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| 392 | |
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| 393 | <li>It creates a dump of the new revision.</li> |
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| 394 | |
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| 395 | <li>It calls the script <code>background_updates.pl</code> if it |
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| 396 | exists.</li> |
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| 397 | </ul>This script is installed as standard in all our repositories. |
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| 398 | </dd> |
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| 399 | |
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| 400 | <dt>templates/hook/background_updates.pl</dt> |
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| 401 | |
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| 402 | <dd>An example of how you may want to set up a |
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| 403 | <code>background_updates.pl</code> script to perform post-commit tasks for |
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| 404 | a specific repository. This script uses a lock file to prevent multiple |
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| 405 | commits in quick succession from causing problems.</dd> |
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| 406 | |
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| 407 | <dt>templates/hook/pre-revprop-change</dt> |
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| 408 | |
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| 409 | <dd>A simple pre-revprop-change hook script which runs the script |
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| 410 | <code>pre-revprop-change.pl</code>.</dd> |
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| 411 | |
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| 412 | <dt>templates/hook/pre-revprop-change.pl</dt> |
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| 413 | |
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| 414 | <dd>If a user attempts to modify the log message of a changeset and he/she |
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| 415 | is not the original author of the changeset, this script will e-mail the |
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| 416 | original author. You can also set up a watch facility to monitor changes of |
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| 417 | log messages that affect particular paths in the repository. For further |
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| 418 | details please refer to the section <a href= |
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| 419 | "../user_guide/system_admin.html#svn_watch">Watching changes in log |
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| 420 | messages</a> in the System Admin chapter of the User Guide.</dd> |
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| 421 | |
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| 422 | <dt>templates/hook/post-revprop-change</dt> |
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| 423 | |
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| 424 | <dd>A simple post-revprop-change hook script which runs the script |
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| 425 | <code>post-revprop-change.py</code>.</dd> |
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| 426 | |
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| 427 | <dt>templates/hook/post-revprop-change.py</dt> |
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| 428 | |
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| 429 | <dd>This hook script updates the Trac SQLite database following a |
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| 430 | successful change in the log message.</dd> |
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| 431 | |
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| 432 | <dt>templates/utils/cron_template.ksh</dt> |
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| 433 | |
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| 434 | <dd>An example of how you might set up a cron job to make use of the |
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| 435 | <samp><repos>.latest</samp> file.</dd> |
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| 436 | |
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| 437 | <dt>templates/utils/daily_cron</dt> |
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| 438 | |
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| 439 | <dd>The cron job which we run each night. It verifies and backs up each of |
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| 440 | our repositories, housekeeps the revision dumps created by |
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| 441 | <code>post-commit-background</code> and backs up each of our Trac systems. |
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| 442 | It also handles the distribution of FCM to various platforms at the Met |
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| 443 | Office.</dd> |
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| 444 | |
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| 445 | <dt>templates/utils/fcm_add_trac.pl</dt> |
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| 446 | |
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| 447 | <dd>This script sets up a new Trac system and applies some configuration |
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| 448 | options which we use by default at the Met Office.</dd> |
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| 449 | |
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| 450 | <dt>templates/utils/recover_svn.pl</dt> |
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| 451 | |
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| 452 | <dd>This script allows us to recover all of our Subversion repositories by |
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| 453 | using the nightly backups and the repository dumps.</dd> |
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| 454 | </dl> |
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| 455 | |
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| 456 | </div> |
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| 457 | </div> |
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| 458 | </div> |
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| 459 | |
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| 460 | <hr/> |
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| 461 | <div class="container-fluid text-center"> |
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| 462 | <div class="row"><div class="col-md-12"> |
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| 463 | <address><small> |
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| 464 | Copyright © 2006-2021 British Crown (Met Office) & Contributors. |
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| 465 | <a href="http://www.metoffice.gov.uk">Met Office</a>. |
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| 466 | See <a href="../etc/fcm-terms-of-use.html">Terms of Use</a>.<br /> |
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| 467 | This document is released under the British <a href= |
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| 468 | "http://www.nationalarchives.gov.uk/doc/open-government-licence/" rel= |
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| 469 | "license">Open Government Licence</a>.<br /> |
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| 470 | </small></address> |
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| 471 | </div></div> |
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| 472 | </div> |
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| 473 | |
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| 474 | <script type="text/javascript" src="../etc/jquery.min.js"></script> |
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| 475 | <script type="text/javascript" src="../etc/bootstrap/js/bootstrap.min.js"></script> |
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| 476 | <script type="text/javascript" src="../etc/fcm.js"></script> |
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| 477 | <script type="text/javascript" src="../etc/fcm-version.js"></script> |
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| 478 | </body> |
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| 479 | </html> |
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