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<H1><A NAME="SECTION00480000000000000000"></A><A NAME="sec:creatingscramprojectconf"></A><A NAME="1075"></A>
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<BR>
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3.8 Creating SCRAM Project Files
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</H1>
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A <SMALL>SCRAM</SMALL> project must have, at least, the following configuration
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files in a configuration directory to properly define the project:
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<DL>
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<DT><STRONG><TT>BootStrapFile</TT></STRONG></DT>
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<DD>
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<BR>
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For bootstrapping the project. This will relate a specific project
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version with the relevant source code version and define a
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requirements file.
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</DD>
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<DT><STRONG><TT>RequirementsDoc</TT></STRONG></DT>
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<DD>
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<BR>
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The requirements file containing information to be passed to the
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configuration manager for setting up external tools.
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</DD>
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<DT><STRONG><TT>BuildFile</TT></STRONG></DT>
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<DD>
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<BR>
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The top-level <TT>BuildFile</TT>, containing project-wide default settings for
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export of external tools, build product storage and
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architecture/compiler settings.
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</DD>
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</DL>
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<P>
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These files are normally kept in a directory called
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<A NAME="1876"></A>
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<A NAME="1086"></A>
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<TT>config</TT> (the name of the directory can be changed using a
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directive in the <TT>BootStrapFile</TT>). A <SMALL>SCRAM</SMALL> command exists
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which can be used to grab basic template files for a new project.
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Typing
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<P>
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<TT>scram project template</TT>
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<P>
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will download some basic project configuration files to a
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directory called <TT>config</TT> in the current directory. These
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should be edited to suit and imported into the project CVS repository
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(see Chapter <A HREF="node47.html#ch:configuringCVSinf">4</A>). Once these configuration
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files exist, they must be tagged with a CVS symbolic tag that matches the name
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and version of the project (for example <TT>myProject_1_0</TT>).
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All project source code must have the same global CVS tag (this is
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especially important if you want the bootstrap mechanism to also
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download source code).
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<P>
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Creating the project area is very easy- just type the command
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<P>
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<TT>scram project file:config/BootStrapFile</TT>
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<P>
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indicating the location of the bootstrap file after the <TT>file:</TT>
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statement, and that's it. <SMALL>SCRAM</SMALL> will set up the tools automatically
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using the settings in the default lookup file
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(<TT>config/site/tools.conf</TT>) or whichever lookup file is specified.
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<P>
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Two subdirectories are created in the project area as part of the
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initialisation: <TT>config</TT> and <TT>.SCRAM</TT>. All files used
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for bootstrapping and the build system are contained in
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<TT>config</TT>, downloaded directly from the CVS repository. The
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important project information is contained in the <TT>.SCRAM</TT>
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subdirectory
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<A NAME="sec:dotSCRAMcontents"></A><A NAME="1877"></A> so this must not be renamed or
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deleted. A closer look at the contents of <TT>.SCRAM</TT> reveals the
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following directories and files:
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<P>
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<PRE>
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ObjectDB/
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Environment
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cache/
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ToolFiles/
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Linux__2.2/
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</PRE>
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<P>
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The directories <TT>ObjectDB</TT>, <TT>cache</TT> and
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<TT>ToolFiles</TT> store tool description files as they are downloaded
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from the CVS repository prior to being parsed by the setup mechanism.
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Once each tool has been configured for use in the current environment,
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a file is created in a directory for the architecture (in this example,
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the architecture is <TT>Linux__2.2</TT>). The file
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<TT>Environment</TT> contains information required about the project
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by <SMALL>SCRAM</SMALL> . The file content for project <TT>COBRA</TT> version
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<TT>COBRA_6_3_0</TT> looks like this:
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<P>
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<PRE>
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SCRAM_PROJECTNAME=COBRA
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SCRAM_PROJECTVERSION=COBRA_6_3_0
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projconfigdir=config
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SCRAM_ProjReqsDoc=config/RequirementsDoc
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</PRE>
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<P>
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If a project area was created (`cloned') from an
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existing project release, there will also be an entry like
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<A NAME="1880"></A>
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<PRE>
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RELEASETOP=/afs/cern.ch/cms/Releases/COBRA/COBRA_6_3_0
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</PRE>
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<P>
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informing <SMALL>SCRAM</SMALL> that a central area containing libraries and
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header files should be used first, before any of the contents of the
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current developer area.
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