Go Tutorial => Create $GO_PATH/gulpfile.js

Example

var gulp = require('gulp');
var path = require('path');
var shell = require('gulp-shell');

var goPath = 'src/mypackage/**/*.go';


gulp.task('compilepkg', function() {
  return gulp.src(goPath, {read: false})
    .pipe(shell(['go install <%= stripPath(file.path) %>'],
      {
          templateData: {
            stripPath: function(filePath) {
              var subPath = filePath.substring(process.cwd().length + 5);
              var pkg = subPath.substring(0, subPath.lastIndexOf(path.sep));
              return pkg;
            }
          }
      })
    );
});

gulp.task('watch', function() {
  gulp.watch(goPath, ['compilepkg']);
});

In the code above we defined a compliepkg task that will be triggered every time any go file in goPath (src/mypackage/) or subdirectories changes. the task will run the shell command go install changed_file.go

After creating the gulp file in go path and define the task open a command line and run: