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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=23405 Allow Ant command-line property files to be loaded using variable substitution. Summary: Allow Ant command-line property files to be loaded using variable substitution. Product: Ant Version: 1.5.4 Platform: PC URL: http://jakarta.apache.org/log4j/docs/api/org/apache/log4 j/PropertyConfigurator.html OS/Version: Windows XP Status: NEW Severity: Enhancement Priority: Other Component: Core AssignedTo: [EMAIL PROTECTED] ReportedBy: [EMAIL PROTECTED] APACHE ANT 1.5.4 ENHANCEMENT REQUEST (Thrusday 25 September 2003) The Apache Ant tool could be enhanced by allowing property values to be substituted when loading them from the command-line using the Ant "-propertyfile" argument. To illustrate, consider running Ant from the command-line ... > ant -propertyfile config.properties <TARGET> where the proeprty file "config.properties" could contain entries server.home=c:\server server.lib=${server.home}\lib admin.user.home=${user.home} The property "server.lib" would evaluate to "c:\server\lib" while property "admin.user.home" could evaluate to "basil" if the Java system property "user.home" evaluated to "basil". A more formal description of this functionality can be seen in the following excerpt, taken from the header of class "org.apache.log4j.PropertyConfigurator" in Apache Log4j 1.2.8 ... "All option values admit variable substitution. The syntax of variable substitution is similar to that of Unix shells. The string between an opening "${" and closing "}" is interpreted as a key. The value of the substituted variable can be defined as a system property or in the configuration file itself. The value of the key is first searched in the system properties, and if not found there, it is then searched in the configuration file being parsed. The corresponding value replaces the ${variableName} sequence. For example, if java.home system property is set to /home/xyz, then every occurrence of the sequence ${java.home} will be interpreted as /home/xyz." I am volunteering to complete this piece of work as I require this functionality for an existing Ant property file. Tim Telcik [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
