Installation » History » Version 41

Marcus Pearce, 2013-10-30 10:31 AM

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h1. Installing IDyOM
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h2. Prerequisites
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* "Steel Bank Common Lisp [SBCL]":http://www.sbcl.org/platform-table.html
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* "Quicklisp":http://www.quicklisp.org/beta/ is a library manager for Common Lisp.  Just download "<code>quicklisp.lisp</code>":http://beta.quicklisp.org/quicklisp.lisp and follow the instructions "here":http://www.quicklisp.org/beta/
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* An SQL database.  I would recommend  "SQLite":http://www.sqlite.org/ which is already installed on most recent flavours of MacOS and Linux.
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It is possible to use SBCL in a terminal window but I strongly suggest using "Emacs":http://www.gnu.org/software/emacs/ and installing Slime (a Lisp interface for Emacs) which is easily done using Quicklisp (see instructions "here":http://www.quicklisp.org/beta/).
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See the "CLSQL Manual":http://clsql.b9.com/manual/ for information on other database systems you can use and how to access them from Common Lisp.
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h2. Install Quicklisp
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First download  "<code>quicklisp.lisp</code>":http://beta.quicklisp.org/quicklisp.lisp to a directory <code>DIR_A</code>.  You can then install Quicklisp to another directory of your choice <code>DIR_B</code>:
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<pre>
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(load "/DIR_A/quicklisp.lisp")
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(quicklisp-quickstart:install :path "/DIR_B/quicklisp/")
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(ql:add-to-init-file)
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(ql:quickload "quicklisp-slime-helper")
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</pre>
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Use the full pathnames for both directories (Lisp doesn't interpret shell substitutions like ~ for the home directory).
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Remember to follow the instructions given by each of these commands (in particular the final command includes some lines of code to put in the emacs configuration file - usually called <code>.emacs</code> in your home directory). 
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See the "Quicklisp website":http://beta.quicklisp.org/ for documentation about other features of Quicklisp.
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h2. Download IDyOM
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Download the following Lisp libraries, and unzip them into <code>DIR_B/quicklisp/local-projects/</code>
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* "idyom":https://code.soundsoftware.ac.uk/hg/idyom/archive/tip.zip
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*Removing previous installations*: If you have any previous installations of these libraries, you would do well to remove them, especially if they are in folders such as '~/.local' which are automatically scanned by asdf/quicklisp. You may also want to clear the corresponding entries from <code>asdf:*central-registry*</code> in your .sbclrc file, should any exist.
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h2. Set <code>*idyom-root*</code>
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IDyOM requires the global variable <code>*idyom-root*</code> be set to a suitable working directory, where it stores models, cross-validation settings, cached results etc. By default, this is a directory called 'idyom' in your home directory. Alternatively, you can customise the location by setting the variable <code>*idyom-root*</code> to point to the desired directory by including the following in your <code>.sbclrc</code> file, located in your home directory (you must restart SBCL for this to take effect):
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<pre>
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(defvar *idyom-root* "/FULL/PATH/TO/WORKING/DIR/")
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</pre>
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However you configure this, you must ensure that the directory exists (create it if it doesn't) and you will also need to create three directories below <code>*idyom-root*</code> for IDyOM to use: <code>*idyom-root*/data/cache/</code>, <code>data/models/</code> and <code>data/resampling/</code>.
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h2. Install IDyOM
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You can now use Quicklisp to install IDyOM:
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<pre>
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(ql:quickload "idyom")
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</pre>
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This will also install the third-party Lisp libraries IDyOM depends on.  
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(If you get an error which brings up the debugger, press 2 [ACCEPT] and the installation should complete.)
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h2. Create a database
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IDyOM is now installed, but you will need a database in order to use it.  For example, to create an SQLite database called 'example.db' in directory <code>DIR</code>:
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<pre>
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(clsql:connect '("DIR/example.db") :if-exists :old :database-type :sqlite3)
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</pre>
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Alternatively, to connect to an existing local MySQL database:
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<pre>
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(clsql:connect '("localhost" "example-database" "username" "password") :if-exists :old :database-type :mysql)
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</pre>
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See the "CLSQL documentation":http://clsql.b9.com/manual/ for more on "connect":http://clsql.b9.com/manual/connect.html and "supported databases":http://clsql.b9.com/manual/prerequisites.html#idp8251808.
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Finally, for a new database: 
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<pre>
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(mtp-admin:initialise-database)
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</pre>
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h3. Problems loading foreign libraries
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Depending on how your system is configured, <code>clsql:connect</code> may give a "Couldn't load foreign libraries" error.  In this case, you
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need to "tell CLSQL where it can find these libraries":http://clsql.b9.com/manual/appendix.html#foreignlibs, e.g.
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<pre>
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(clsql:push-library-path "/usr/local/mysql/lib/")
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</pre>
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The exact path will depend on your system.  Note that, for some database installations these libraries may not have been installed, and you should consult the database documentation.