grunt string-replace

gistfile1.txt

'string-replace': {
      optimized: {
        files: {
          'source/index.html': 'source/index.html'
        },
        options: {
          replacements: [{
            pattern: /static\/js\/main/,
            replacement: 'static/js/main.optimized'
          }]
        }
      },
      stage: {
        files: {
          'source/index.html': 'source/index.html'
        },
        options: {
          replacements: [{
            pattern: /src\=\"static/g,
            replacement: 'src="' + STAGE_CDN + '/chase/' + TSTAMP + '/static'
          },{
            pattern: /href\=\"static/g,
            replacement: 'href="' + STAGE_CDN + '/chase/' + TSTAMP + '/static'
          },{
            pattern: /data-main\=\"static/g,
            replacement: 'data-main="' + STAGE_CDN + '/chase/' + TSTAMP + '/static'
          }]
        }
      }
    }