Add relative option to lcov format files.

lib/report/lcov.js

@@ -35,7 +35,7 @@ function LcovReport(opts) {
         htmlDir = path.resolve(baseDir, 'lcov-report');
 
     mkdirp.sync(baseDir);
-    this.lcov = new LcovOnlyReport({ dir: baseDir, watermarks: opts.watermarks });
+    this.lcov = new LcovOnlyReport({ dir: baseDir, watermarks: opts.watermarks, relative: opts.relative});
     this.html = new HtmlReport({ dir: htmlDir, watermarks: opts.watermarks, sourceStore: opts.sourceStore});
 }
 

lib/report/lcovonly.js

@@ -23,10 +23,12 @@ var path = require('path'),
  * @constructor
  * @param {Object} opts optional
  * @param {String} [opts.dir] the directory in which to the `lcov.info` file. Defaults to `process.cwd()`
+ * @param {Boolean} [opts.relative] If true paths reported will be relative to `process.cwd()`. Defaults to `false`
  */
 function LcovOnlyReport(opts) {
     this.opts = opts || {};
     this.opts.dir = this.opts.dir || process.cwd();
+    this.opts.relative = this.opts.relative || false;
     this.opts.file = this.opts.file || this.getDefaultConfig().file;
     this.opts.writer = this.opts.writer || null;
 }
@@ -49,7 +51,7 @@ Report.mix(LcovOnlyReport, {
             summary = utils.summarizeFileCoverage(fc);
 
         writer.println('TN:'); //no test name
-        writer.println('SF:' + fc.path);
+        writer.println('SF:' + (this.opts.relative ? path.relative(process.cwd(), fc.path) : fc.path));
 
         Object.keys(functions).forEach(function (key) {
             var meta = functionMap[key];