Meu Gruntfile.js, se eu colocar tudo em um arquivo só, sem separar o código funciona.
module.exports = function(grunt) {
grunt.initConfig({
/* Copia os arquivos para o diretório 'dist' */
copy: {
public: {
expand: true,
cwd: 'public',
src: '**',
dest: 'dist'
}
},
clean: {
dist: {
src: 'dist'
}
},
useminPrepare: {
html: 'dist/**/*.html'
},
usemin: {
html: 'dist/**/*.html'
},
imagemin: {
public: {
expand: true,
cwd: 'dist/imagens',
src: '**/*.{png,jpg,gif}',
dest: 'dist/imagens'
}
},
rev: {
options: {
encoding: 'utf8',
algorithm: 'md5',
length: 8
},
imagens: {
src: ['dist/imagens/**/*.{png,jpg,gif}']
},
minificados: {
src: ['dist/js/**/*.min.js', 'dist/css/**/*.min.css']
}
},
coffee: {
compilar: {
expand: true,
cwd: 'public/coffee',
src: ['**/*.coffee'],
dest: 'public/js',
ext: '.js'
}
},
less: {
compilar: {
expand: true,
cwd: 'public/less',
src: ['**/*.less'],
dest: 'public/css',
ext: '.css'
}
},
watch: {
coffee: {
options: {
event: ['added', 'changed']
},
files: 'public/coffee/**/*.coffee',
tasks: 'coffee:compilar'
},
less: {
options: {
event: ['added', 'changed']
},
files: 'public/less/**/*.less',
tasks: 'less:compilar'
},
js: {
options: {
event: ['changed']
},
files: 'public/js/**/*.js',
tasks: 'jshint:js'
}
},
jshint: {
js: {
src: ['public/js/**/*.js']
}
},
browserSync: {
public: {
bsFiles: {
src : ['public/**/*']
},
options: {
watchTask: true,
server: {
baseDir: "public"
}
}
}
}
});
//registrando task para minificação
grunt.registerTask('dist', ['clean', 'copy']);
grunt.registerTask('minifica', ['useminPrepare',
'concat', 'uglify', 'cssmin', 'rev:imagens','rev:minificados', 'usemin', 'imagemin']);
grunt.registerTask('server', ["browserSync", "watch"]);
// registrando tasks
grunt.registerTask('default', ['dist', 'minifica', ]);
// carregando tasks
grunt.loadNpmTasks('grunt-contrib-copy');
grunt.loadNpmTasks('grunt-contrib-clean');
grunt.loadNpmTasks('grunt-contrib-concat');
grunt.loadNpmTasks('grunt-contrib-uglify');
grunt.loadNpmTasks('grunt-contrib-cssmin');
grunt.loadNpmTasks('grunt-usemin');
grunt.loadNpmTasks('grunt-contrib-imagemin');
grunt.loadNpmTasks('grunt-rev');
grunt.loadNpmTasks('grunt-contrib-coffee');
grunt.loadNpmTasks('grunt-contrib-less');
grunt.loadNpmTasks('grunt-contrib-watch');
grunt.loadNpmTasks('grunt-contrib-jshint');
grunt.loadNpmTasks('grunt-browser-sync');
}
