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iamamused/Readme.md

Created February 21, 2012 03:10
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Set Ant build properties from JSON
Raw
Readme.md

Example:

Jeffreys-MacBook-Air$ ant example
Buildfile: /Users/jsambells/Documents/example/build.xml
    [echo] Parsing properties
    [echo] greeting=Hello
    [echo] audience=world
example:
    [echo] Hello world
Raw
build.xml
<?xml version="1.0" encoding="UTF-8"?>
<project name="JSON Example" basedir=".">
<script language="javascript">
importClass(java.io.File);
importClass(java.io.FileReader);
importClass(java.io.BufferedReader);
importClass(java.io.FileWriter);
importClass(java.io.BufferedWriter);
echo = project.createTask("echo");
echo.setMessage("Parsing properties");
echo.perform();
var file = new File("properties.json");
fr = new FileReader(file);
br = new BufferedReader(fr);
// Read the file.
// This assumes the file has no line breaks and is one line.
var json = br.readLine();
// Evaluate the JSON.
var struct = eval("(" + json + ")");
// Set each property in the project environment.
for (i in struct) {
echo = project.createTask("echo");
echo.setMessage(i + "=" + struct[i]);
echo.perform();
project.setProperty(i,struct[i]);
}
</script>
<target name="example">
<echo>${greeting} ${audience}</echo>
</target>
</project>
Raw
properties.json
{"greeting":"Hello","audience":"world"}
@cm325
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cm325 commented Jan 19, 2017

I'm getting:

javax.script.ScriptEngineFactory: Provider com.sun.phobos.script.javascript.RhinoScriptEngineFactory could not be instantiated

How did you setup ant to start running tasks like this?

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