Create a key:value pair dynamically - groovy

Question

I have the following groovy-script:
#!/usr/bin/env groovy
def files = [
'file-1.bat' :
[
'content-1-1',
'content-1-2',
'content-1-3'
],
'file-1' :
[
'content-unix-1-1',
'content-unix-1-2',
'content-unix-1-3',
],
'file-2.bat' :
[
'content-2-1',
'content-2-2',
'content-2-3'
],
'file-2' :
[
'content-unix-2-1',
'content-unix-2-2',
'content-unix-2-3',
],
]
files.each {
file_key, file_value -> println file_key;
file_value.each {
file_content -> println "\t"+file_content;
files[ file_key ] = [file_content : true];
}
}
println ' Upgraded content';
files.each {
file_key, file_value -> println file_key;
file_value.each {
file_content -> println "\t"+file_content;
}
}
The following lines causes my problems:
files[ file_key ] = [file_content : true];
What I want to do is to create for every entry in the map also the true part of the key:value pair...I know that I didn't define the list in that way...
I've tried to enhance the map by using files[file_key].put(key, value); but this does not work...Maybe I'm thinking in a complete wrong direction...
The background of that construct is that in the files (file-1.bat, file-1 etc.) I will check the existence of the contents given as a Map
'file-1.bat' : [
'content-1-1',
'content-1-2',
'content-1-3'
],
I could do the following:
'file-1.bat' : [
'content-1-1' : false,
'content-1-2' : false,
'content-1-3' : false,
],
but that's exactly what I want to avoid.

Answer 1

You are right in thinking that put() will solve your issue, but you cannot put a map element into a list. You need to first create a map that can be put into, then assign the resulting map as the output.
For example:
files.each {
file_key, file_value -> println file_key;
def file_map = [:];
file_value.each {
file_content -> println "\t"+file_content;
file_map.put(file_content, true);
}
files[ file_key ] = file_map;
}