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Re: Suggestion for future release


From: Mark Burgess
Subject: Re: Suggestion for future release
Date: Fri, 10 Mar 2006 20:35:40 +0100

You mean like ReadFile() ?

On Wed, 2006-03-08 at 16:47 +0000, Marco van Beek wrote:
> Hi Everyone,
> 
> I have a suggestion for CFengine. It would be nice to be able to have a 
> plain text config file with variables, which could be read by a client 
> on a host by host, and/or class by class basis.
> 
> The data would be read in by CFEngine (probably set in cfagent.conf) and 
> would be available to all subsequent cf files being processed.
> 
> I did something a while ago because I wanted to read the same data in 
> Perl as PHP for a project I have been dabbling with.
> 
> Anyway, an example config plus working Perl code is below. It would save 
> me having to use complicated bash code to extract data from a plain text 
> file. I have a config file per host which means I can define each boxes 
> purpose outside of CFEngine, which makes it easier to maintain.
> 
> Cheers,
> 
> Marco
> 
> 
> ==============================================================
> EXAMPLE CONFIG FILE
> ==============================================================
> 
> #######################################
> # Cross language config file for SSiS #
> #######################################
> # Comments are allowed    #
> # White space is allowed  #
> # syntax is 'key = value' #
> ###########################
> 
> ...
> 
> #########
> # MySQL #
> #########
> 
> mysql_server = localhost
> mysql_datasource = dbi:mysql:ssis
> mysql_database = ssis
> mysql_username = ssis
> mysql_password = ssis
> mysql_palm_gluetable = PDA_Sync
> mysql_ldap_gluetable = LDAP_Sync
> 
> ########
> # LDAP #
> ########
> 
> ou = ou=SSiS
> dc = dc=supporting-role,dc=co,dc=uk
> ldap_bindas = uid=ssis,ou=People,dc=supporting-role,dc=co,dc=uk
> ldap_password = secret
> ldap_server = localhost
> ldap_port   = 389
> ldap_version = 3
> 
> ===============================================================
> PERL CODE TO EXTRACT FROM CONFIG AND DUMP INTO ARRAY
> ================================================================
> my %settings;
> open(CONFIG,"/etc/ssis-config");
> while(<CONFIG>)
>          {
>          chomp;                  # no newline
>          s/#.*//;                # no comments
>          s/^\s+//;               # no leading whitespace
>          s/\s+$//;               # no trailing whitespace
>          next unless length;     # Anything left?
>          my ($var, $value) = split(/\s*=\s*/,$_, 2);
>          $settings{$var} = $value;
>          }
> close CONFIG;
> 
> my $mysql_datasource          = $settings{"mysql_datasource"};
> my $mysql_username            = $settings{"mysql_username"};
> my $mysql_password            = $settings{"mysql_password"};
> my $mysql_palm_gluetable      = $settings{"mysql_palm_gluetable"};
> my $public_user                       = $settings{"public_user"};
> my $Memo_user                         = $settings{"Memo_user"};
> my $ToDo_user                 = $settings{"ToDo_user"};
> my $Address_user              = $settings{"Address_user"};
> my $Datebook_user             = $settings{"Datebook_user"};
> ==================================================================
> 
> 
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