Berkeley CSUA MOTD:Entry 44008
Berkeley CSUA MOTD
 
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2025/05/24 [General] UID:1000 Activity:popular
5/24    

2006/8/15-17 [Computer/SW/Languages/Java, Computer/SW/Languages/Misc] UID:44008 Activity:nil
8/14    In XML scripts in Ant, I can use the value of a variable by doing
        "${foo}".  How do I use the value of an environment variable?  Thx.
        \_ http://ant.apache.org/manual/CoreTasks/property.html
           under Examples, search for environment
        \_ <property environment="ENV" />
           <includepath path="${ENV.JAVA_HOME}/include/" />
           \_ Thanks!!!  I'm new to Ant and I have to guess my way through some
              existing script.  --- OP
ERROR, url_link recursive (eces.Colorado.EDU/secure/mindterm2) 2025/05/24 [General] UID:1000 Activity:popular
5/24    

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ant.apache.org/manual/CoreTasks/property.html
Property Description Sets a property (by name and value), or set of properties (from file or resource) in the project. Properties are immutable: whoever sets a property first freezes it for the rest of the build; There are six ways to set properties: * By supplying both the name and value attribute. Properties, with the same rules about how non-ISO8859-1 characters must be escaped. A resource is a property file on the current classpath, or on the specified classpath. Properties will be defined for every environment variable by prefixing the supplied name and a period to the name of the variable. Although combinations of these ways are possible, only one should be used at a time. Problems might occur with the order in which properties are set, for instance. The value part of the properties being set, might contain references to other properties. These references are resolved at the time these properties are set. This also holds for properties loaded from a property file. OpenVMS Users With the environment attribute this task will load all defined logicals on an OpenVMS system. Logicals with multiple equivalence names get mapped to a property whose value is a comma separated list of all equivalence names. If a logical is defined in multiple tables, only the most local definition is available (the table priority order being PROCESS, JOB, GROUP, SYSTEM) Parameters Attribute Description Required name the name of the property to set. One of these, when using the name attribute location Sets the property to the absolute filename of the given file. If the value of this attribute is an absolute path, it is left unchanged (with / and \ characters converted to the current platforms conventions). Otherwise it is taken as a path relative to the project's basedir and expanded. One of these, when not using the name attribute file the filename of the property file . environment the prefix to use when retrieving environment variables. TERM" Note that if you supply a property name with a final "." TERM" This functionality is currently only implemented on select platforms. classpath the classpath to use when looking up a resource. PATH like structure and can also be set via a nested classpath element. home" property is defined by the Java virtual machine to be your home directory. home" property resolves to in the file system depends on the operating system version and the JVM implementation. On Unix based systems, this will map to the user's home directory. On modern Windows variants, this will most likely resolve to the user's directory in the "Documents and Settings" folder. Older windows variants such as Windows 98/ME are less predictable, as are other operating system/JVM combinations. ANT_HOME}"/> reads the system environment variables and stores them in properties, prefixed with "env". Property Files As stated, this task will load in a properties file stored in the file system, or as a resource on a classpath. Here are some interesting facts about this feature 1 If the file is not there, nothing is printed except at -verbose log level. This lets you have optional configuration files for every project, that team members can customize.