grunt: an example of building task targets dynamically

1.before.js

/*global module:false*/
module.exports = function(grunt) {

  // Project configuration.
  grunt.initConfig({
    min: {
      ariaAccessibility: {
        src: ['src/javascripts/jquery.selectBoxIt.ariaAccessibility.js'],
        dest: 'src/javascripts/jquery.selectBoxIt.ariaAccessibility.min.js'
      },
      disable: {
        src: ['src/javascripts/jquery.selectBoxIt.disable.js'],
        dest: 'src/javascripts/jquery.selectBoxIt.disable.min.js'
      },
      enable: {
        src: ['src/javascripts/jquery.selectBoxIt.enable.js'],
        dest: 'src/javascripts/jquery.selectBoxIt.enable.min.js'
      },
      destroy: {
        src: ['src/javascripts/jquery.selectBoxIt.destroy.js'],
        dest: 'src/javascripts/jquery.selectBoxIt.destroy.min.js'
      },
      setOption: {
        src: ['src/javascripts/jquery.selectBoxIt.setOption.js'],
        dest: 'src/javascripts/jquery.selectBoxIt.setOption.min.js'
      },
      setOptions: {
        src: ['src/javascripts/jquery.selectBoxIt.setOptions.js'],
        dest: 'src/javascripts/jquery.selectBoxIt.setOptions.min.js'
      },
      wait: {
        src: ['src/javascripts/jquery.selectBoxIt.wait.js'],
        dest: 'src/javascripts/jquery.selectBoxIt.wait.min.js'
      }
    }
  });

  // etc.
};

2.after.js

/*global module:false*/
module.exports = function(grunt) {

  var min = {};
  [
    'ariaAccessibility',
    'disable',
    'enable',
    'destroy',
    'setOption',
    'setOptions',
    'wait'
  ].forEach(function(name) {
    min[name] = {
      src: 'src/javascripts/jquery.selectBoxIt.' + name + '.js',
      dest: 'src/javascripts/jquery.selectBoxIt.' + name + '.min.js'
    };
  });

  // Project configuration.
  grunt.initConfig({
    min: min
  });

  // etc.
};

very useful for my case. What if there is another min configuration and I want to run this specific configuration. My case is, I have created a dynamic compress task from your example and when I run 'grunt compress' all the compress tasks are being executed but I just want the compress configuration generated by the above example. For example...
//created grunt compress task
var compress = {};
references.forEach(function(name)
{
compress[name] = {
options: {
archive: '<%= pkg.distOutputDir %>/uploads/'+ name + '.zip'
},
files: [
{
expand: true,
cwd: './js/temp/files/'+name+'/',
src: ['']
}
]
};
});
grunt.initConfig({
compress:compress, //dynamically geneerated statements from above
compress: { //manual configuration
temp: {
options: {
archive: ./uploads/xyz.zip
},
files: [
{expand: true,
cwd: <%= pkg.distOutputDir %>/xyz/,
src: []
}
]
}
}
});

when I do a 'grunt compress' all compress tasks are run including temp also. I do not want compress: temp to run. Any help on this is appreciable. Thanks in advance