public void get()

in wagon-providers/wagon-scm/src/main/java/org/apache/maven/wagon/providers/scm/ScmWagon.java [707:763]
38 lines of code
8 McCabe index (conditional complexity)

    public void get( String resourceName, File destination )
        throws TransferFailedException, ResourceDoesNotExistException, AuthorizationException
    {
        Resource resource = new Resource( resourceName );

        fireGetInitiated( resource, destination );

        fireGetStarted( resource, destination );

        try
        {
            String subdir = getDirname( resourceName );
            ScmResult res = tryPartialCheckout( subdir, false );
            if ( !res.isSuccess() && ( partCOSubdir.length() == 0 || res instanceof UpdateScmResult ) )
            {
                // inability to checkout SVN or CVS subdir is not fatal. We just assume it doesn't exist
                // inability to update existing subdir or checkout root is fatal
                throw new ScmException( "command failed: " + res.getCommandOutput().trim() );
            }
            resourceName = resourceName.substring( partCOSubdir.length() );

            // TODO: limitations:
            // - destination filename must match that in the repository - should allow the "-d" CVS equiv to be passed
            //   in
            // - we don't get granular exceptions from SCM (ie, auth, not found)
            // - need to make it non-recursive to save time
            // - exists() check doesn't test if it is in SCM already

            File scmFile = new File( checkoutDirectory, resourceName );

            if ( !scmFile.exists() )
            {
                throw new ResourceDoesNotExistException( "Unable to find resource " + destination + " after checkout" );
            }

            if ( !scmFile.equals( destination ) )
            {
                FileUtils.copyFile( scmFile, destination );
            }
        }
        catch ( ScmException e )
        {
            fireTransferError( resource, e, TransferEvent.REQUEST_GET );

            throw new TransferFailedException( "Error getting file from SCM", e );
        }
        catch ( IOException e )
        {
            fireTransferError( resource, e, TransferEvent.REQUEST_GET );

            throw new TransferFailedException( "Error getting file from SCM", e );
        }

        postProcessListeners( resource, destination, TransferEvent.REQUEST_GET );

        fireGetCompleted( resource, destination );
    }