Strange error copying a file

Old Forum
1

My setup (remember I am 2 days old with gradle!)

wicket application was maven, I made it into gradle to get some experience.

So I need to copy a large textfile during build. The file is a normal txt file. During the processResources phase I get the following error:

Caused by: groovy.lang.GroovyRuntimeException: Failed to parse template script (
your template may contain an error or be trying to use expressions not currently
 supported): startup failed:
SimpleTemplateScript5.groovy: 1: String too long. The given string is 813517 Uni
code code units long, but only a maximum of 65535 is allowed.

This seems to be because I have in my build file:

// define the profileProperties. This is basically the profile and properties like in maven
def profileProperties = [
 dev:[
  dbdriver:"org.apache.derby.jdbc.EmbeddedDriver",
  dburl:"jdbc:derby:db/eveasset;create=true",
  dbuser:"app",
  dbpassword:"app"
 ],
 test:[prop1:"devValue1", prop2:"devValue2"],
 prod:[prop1:"prodValue1", prop2:"prodValue2"]
]
  // define usedProfile as a global then test if it is set from the command line. If not, then set it to dev
def usedProfile = project.hasProperty("profile") ? project.getProperty("profile"): "dev"
 //if (project.hasProperty("profile")) {
// usedProfile = project.getProperty("profile")
//} else {
// usedProfile = 'dev'
//}
  task showProfile << {
 println usedProfile
}
  // Tell processResources to handle this.
processResources{
 expand(profileProperties[usedProfile])
}

If I comment out the “processResources” part it works perfectly. Is there a way I can tell gradle to exclude the file from being filtered, but it has to be copied?

2

The ‘expand’ method used Groovy’s ‘SimpleTemplateEngine’, which has its limitations. For larger files, you are better off with the Ant-based ‘filter’ method. For details, see the ‘Copy’ task type in the Gradle Build Language Reference.

3

I will look into that for now I solved it as follows:

task copyTypeId(type: Copy) {
    from 'tmp/typeid.txt'
    into 'build/resources/main'
}
processResources.dependsOn copyTypeId

This ‘feels’ reasonably clean without having to go into ant(brrrr…). I know this file will never have to be filtered.

In maven you could add several directories and signify filtering false or true. Is this in the pipeline for gradle?

4

Each copy action of a ‘Copy’ task can have its own filters. See ‘Copy’ in the Gradle Build Language Reference.

5

If there is interest I wrote an alternative template engine on some bored out Saturday a while back which can handle larger strings:

https://github.com/mbjarland/groovy-streaming-template-engine