Debug statements aren't showing src/groovy classes - grails

Question

I have the following in my config.groovy
// default for all environments
log4j = { root ->
appenders {
rollingFile name:'stacktrace', file:"${logDirectory}/app_stack.log".toString(), maxFileSize:'100KB'
}
error 'org.codehaus.groovy.grails.web.servlet', // controllers
'org.codehaus.groovy.grails.web.pages', // GSP
'org.codehaus.groovy.grails.web.sitemesh', // layouts
'org.codehaus.groovy.grails.web.mapping.filter', // URL mapping
'org.codehaus.groovy.grails.web.mapping', // URL mapping
'org.codehaus.groovy.grails.commons', // core / classloading
'org.codehaus.groovy.grails.plugins', // plugins
'org.codehaus.groovy.grails.orm.hibernate', // hibernate integration
'org.springframework', 'org.hibernate'
debug 'com.my.code'
root.level = org.apache.log4j.Level.INFO
}
I get debug statements printed to the logs for all classes except for my groovy files placed in package com.my.code I don't get the debug statements printed. Only the info statements are being printed to the log.
Here is an example for one of the groovy classes in src/groovy
#Log4j
class SomeTest {
def someMethod() {
log.info("This will print")
log.debug("This will not print")
println log.isDebugEnabled() //prints false
print log.isInfoEnabled() //prints true
}
}
Question
How can I turn on debugging for all class under package com.my.code ? I'm on grails 2.3.5. When I change root.level to org.apache.log4j.Level.DEBUG then the debug statements do show up but that turns on DEBUG for ALL other classes as well

Answer 1

Here's a configuration that will log all code in packages com.my.code at the DEBUG level, and all other packages at the ERROR level.
The logs will be sent to the console and a file named appLog.txt.
log4j = {
appenders {
def logPattern = '%d{dd-MM-yyyy HH:mm:ss,SSS} %5p %c{2} - %m%n'
console name: 'consoleAppender', layout: pattern(conversionPattern: logPattern)
file name: "fileAppender", file: "appLog.txt"
}
root {
// define the root logger's level and appenders, these will be inherited by all other loggers
error 'consoleAppender', 'fileAppender'
}
def appNamespaces = [
'com.my.code',
'grails.app.conf.com.my.code',
'grails.app.filters.com.my.code',
'grails.app.taglib.com.my.code',
'grails.app.services.com.my.code',
'grails.app.controllers.com.my.code',
'grails.app.domain.com.my.code'
]
appNamespaces.each { debug it }
}

Answer 2

In grails 2.x apps I used next format (with regards to your config):
debug rollingFile 'com.my.code'
Furthermore, if you need to set different log level for a bunch of packages:
debug rollingFile: ['com.example','com.otherpackage']