diff --git a/.vscodeignore b/.vscodeignore
index 3bbdd3f..4608c45 100644
--- a/.vscodeignore
+++ b/.vscodeignore
@@ -1,7 +1,11 @@
 .vscode/**
 .vscode-test/**
+node_modules/**
 test/**
 package-lock.json
 .travis.yml
 .gitignore
+entry.js
+rollup.config.js
+test.js
 
diff --git a/index.js b/entry.js
similarity index 98%
rename from index.js
rename to entry.js
index 452b894..88512b0 100644
--- a/index.js
+++ b/entry.js
@@ -64,6 +64,8 @@ const Compiler = {
     let target = origin.replace(/\.scss$/, '')
     let task = []
 
+    console.log(origin, target)
+
     // 说明不是scss文件
     if (origin === target) {
       return
@@ -94,6 +96,7 @@ const Compiler = {
 
     Promise.all(task)
       .then(list => {
+        console.log('>'.repeat(50), '\n', list)
         list.forEach(it => {
           fs.echo(it.css, it.output)
         })
diff --git a/package-lock.json b/package-lock.json
index b24ad65..d099b1c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -13,11 +13,113 @@
         "postcss": "^7.0.6",
         "sass": "^1.35.1"
       },
-      "devDependencies": {},
+      "devDependencies": {
+        "@rollup/plugin-commonjs": "^19.0.0",
+        "@rollup/plugin-json": "^4.1.0",
+        "@rollup/plugin-node-resolve": "^13.0.0",
+        "rollup": "^2.52.7"
+      },
       "engines": {
         "vscode": "^1.28.0"
       }
     },
+    "node_modules/@rollup/plugin-commonjs": {
+      "version": "19.0.0",
+      "resolved": "https://registry.npmjs.org/@rollup/plugin-commonjs/-/plugin-commonjs-19.0.0.tgz",
+      "integrity": "sha512-adTpD6ATGbehdaQoZQ6ipDFhdjqsTgpOAhFiPwl+dzre4pPshsecptDPyEFb61JMJ1+mGljktaC4jI8ARMSNyw==",
+      "dev": true,
+      "dependencies": {
+        "@rollup/pluginutils": "^3.1.0",
+        "commondir": "^1.0.1",
+        "estree-walker": "^2.0.1",
+        "glob": "^7.1.6",
+        "is-reference": "^1.2.1",
+        "magic-string": "^0.25.7",
+        "resolve": "^1.17.0"
+      },
+      "engines": {
+        "node": ">= 8.0.0"
+      },
+      "peerDependencies": {
+        "rollup": "^2.38.3"
+      }
+    },
+    "node_modules/@rollup/plugin-json": {
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/@rollup/plugin-json/-/plugin-json-4.1.0.tgz",
+      "integrity": "sha512-yfLbTdNS6amI/2OpmbiBoW12vngr5NW2jCJVZSBEz+H5KfUJZ2M7sDjk0U6GOOdCWFVScShte29o9NezJ53TPw==",
+      "dev": true,
+      "dependencies": {
+        "@rollup/pluginutils": "^3.0.8"
+      },
+      "peerDependencies": {
+        "rollup": "^1.20.0 || ^2.0.0"
+      }
+    },
+    "node_modules/@rollup/plugin-node-resolve": {
+      "version": "13.0.0",
+      "resolved": "https://registry.npmjs.org/@rollup/plugin-node-resolve/-/plugin-node-resolve-13.0.0.tgz",
+      "integrity": "sha512-41X411HJ3oikIDivT5OKe9EZ6ud6DXudtfNrGbC4nniaxx2esiWjkLOzgnZsWq1IM8YIeL2rzRGLZLBjlhnZtQ==",
+      "dev": true,
+      "dependencies": {
+        "@rollup/pluginutils": "^3.1.0",
+        "@types/resolve": "1.17.1",
+        "builtin-modules": "^3.1.0",
+        "deepmerge": "^4.2.2",
+        "is-module": "^1.0.0",
+        "resolve": "^1.19.0"
+      },
+      "engines": {
+        "node": ">= 10.0.0"
+      },
+      "peerDependencies": {
+        "rollup": "^2.42.0"
+      }
+    },
+    "node_modules/@rollup/pluginutils": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/@rollup/pluginutils/-/pluginutils-3.1.0.tgz",
+      "integrity": "sha512-GksZ6pr6TpIjHm8h9lSQ8pi8BE9VeubNT0OMJ3B5uZJ8pz73NPiqOtCog/x2/QzM1ENChPKxMDhiQuRHsqc+lg==",
+      "dev": true,
+      "dependencies": {
+        "@types/estree": "0.0.39",
+        "estree-walker": "^1.0.1",
+        "picomatch": "^2.2.2"
+      },
+      "engines": {
+        "node": ">= 8.0.0"
+      },
+      "peerDependencies": {
+        "rollup": "^1.20.0||^2.0.0"
+      }
+    },
+    "node_modules/@rollup/pluginutils/node_modules/estree-walker": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/estree-walker/-/estree-walker-1.0.1.tgz",
+      "integrity": "sha512-1fMXF3YP4pZZVozF8j/ZLfvnR8NSIljt56UhbZ5PeeDmmGHpgpdwQt7ITlGvYaQukCvuBRMLEiKiYC+oeIg4cg==",
+      "dev": true
+    },
+    "node_modules/@types/estree": {
+      "version": "0.0.39",
+      "resolved": "https://registry.npmjs.org/@types/estree/-/estree-0.0.39.tgz",
+      "integrity": "sha512-EYNwp3bU+98cpU4lAWYYL7Zz+2gryWH1qbdDTidVd6hkiR6weksdbMadyXKXNPEkQFhXM+hVO9ZygomHXp+AIw==",
+      "dev": true
+    },
+    "node_modules/@types/node": {
+      "version": "15.14.0",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-15.14.0.tgz",
+      "integrity": "sha512-um/+/ip3QZmwLfIkWZSNtQIJNVAqrJ92OkLMeuZrjZMTAJniI7fh8N8OICyDhAJ2mzgk/fmYFo72jRr5HyZ1EQ==",
+      "dev": true
+    },
+    "node_modules/@types/resolve": {
+      "version": "1.17.1",
+      "resolved": "https://registry.npmjs.org/@types/resolve/-/resolve-1.17.1.tgz",
+      "integrity": "sha512-yy7HuzQhj0dhGpD8RLXSZWEkLsV9ibvxvi6EiJ3bkqLAO1RGo0WbkWQiwpRlSFymTJRz0d3k5LM3kkx8ArDbLw==",
+      "dev": true,
+      "dependencies": {
+        "@types/node": "*"
+      }
+    },
     "node_modules/ansi-styles": {
       "version": "3.2.1",
       "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
@@ -62,6 +164,12 @@
         "url": "https://tidelift.com/funding/github/npm/autoprefixer"
       }
     },
+    "node_modules/balanced-match": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.2.tgz",
+      "integrity": "sha512-3oSeUO0TMV67hN1AmbXsK4yaqU7tjiHlbxRDZOpH0KW9+CeX4bRAaX0Anxt0tx2MrpRpWwQaPwIlISEJhYU5Pw==",
+      "dev": true
+    },
     "node_modules/binary-extensions": {
       "version": "2.2.0",
       "resolved": "https://registry.npmjs.org/binary-extensions/-/binary-extensions-2.2.0.tgz",
@@ -70,6 +178,16 @@
         "node": ">=8"
       }
     },
+    "node_modules/brace-expansion": {
+      "version": "1.1.11",
+      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz",
+      "integrity": "sha512-iCuPHDFgrHX7H2vEI/5xpz07zSHB00TpugqhmYtVmMO6518mCuRMoOYFldEBl0g187ufozdaHgWKcYFb61qGiA==",
+      "dev": true,
+      "dependencies": {
+        "balanced-match": "^1.0.0",
+        "concat-map": "0.0.1"
+      }
+    },
     "node_modules/braces": {
       "version": "3.0.2",
       "resolved": "https://registry.npmjs.org/braces/-/braces-3.0.2.tgz",
@@ -103,6 +221,18 @@
         "url": "https://opencollective.com/browserslist"
       }
     },
+    "node_modules/builtin-modules": {
+      "version": "3.2.0",
+      "resolved": "https://registry.npmjs.org/builtin-modules/-/builtin-modules-3.2.0.tgz",
+      "integrity": "sha512-lGzLKcioL90C7wMczpkY0n/oART3MbBa8R9OFGE1rJxoVI86u4WAGfEk8Wjv10eKSyTHVGkSo3bvBylCEtk7LA==",
+      "dev": true,
+      "engines": {
+        "node": ">=6"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
     "node_modules/caniuse-lite": {
       "version": "1.0.30001241",
       "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001241.tgz",
@@ -174,10 +304,31 @@
       "resolved": "https://registry.npmjs.org/colorette/-/colorette-1.2.2.tgz",
       "integrity": "sha512-MKGMzyfeuutC/ZJ1cba9NqcNpfeqMUcYmyF1ZFY6/Cn7CNSAKx6a+s48sqLqyAiZuaP2TcqMhoo+dlwFnVxT9w=="
     },
+    "node_modules/commondir": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/commondir/-/commondir-1.0.1.tgz",
+      "integrity": "sha1-3dgA2gxmEnOTzKWVDqloo6rxJTs=",
+      "dev": true
+    },
+    "node_modules/concat-map": {
+      "version": "0.0.1",
+      "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
+      "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s=",
+      "dev": true
+    },
+    "node_modules/deepmerge": {
+      "version": "4.2.2",
+      "resolved": "https://registry.npmjs.org/deepmerge/-/deepmerge-4.2.2.tgz",
+      "integrity": "sha512-FJ3UgI4gIl+PHZm53knsuSFpE+nESMr7M4v9QcgB7S63Kj/6WqMiFQJpBBYz1Pt+66bZpP3Q7Lye0Oo9MPKEdg==",
+      "dev": true,
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
     "node_modules/electron-to-chromium": {
-      "version": "1.3.762",
-      "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.3.762.tgz",
-      "integrity": "sha512-LehWjRpfPcK8F1Lf/NZoAwWLWnjJVo0SZeQ9j/tvnBWYcT99qDqgo4raAfS2oTKZjPrR/jxruh85DGgDUmywEA=="
+      "version": "1.3.765",
+      "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.3.765.tgz",
+      "integrity": "sha512-4NhcsfZYlr1x4FehYkK+R9CNNTOZ8vLcIu8Y1uWehxYp5r/jlCGAfBqChIubEfdtX+rBQpXx4yJuX/dzILH/nw=="
     },
     "node_modules/escalade": {
       "version": "3.1.1",
@@ -195,6 +346,12 @@
         "node": ">=0.8.0"
       }
     },
+    "node_modules/estree-walker": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/estree-walker/-/estree-walker-2.0.2.tgz",
+      "integrity": "sha512-Rfkk/Mp/DL7JVje3u18FxFujQlTNR2q6QfMSMB7AvCBx91NGj/ba3kCfza0f6dVDbw7YlRf/nDrn7pQrCCyQ/w==",
+      "dev": true
+    },
     "node_modules/fill-range": {
       "version": "7.0.1",
       "resolved": "https://registry.npmjs.org/fill-range/-/fill-range-7.0.1.tgz",
@@ -206,6 +363,12 @@
         "node": ">=8"
       }
     },
+    "node_modules/fs.realpath": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/fs.realpath/-/fs.realpath-1.0.0.tgz",
+      "integrity": "sha1-FQStJSMVjKpA20onh8sBQRmU6k8=",
+      "dev": true
+    },
     "node_modules/fsevents": {
       "version": "2.3.2",
       "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-2.3.2.tgz",
@@ -219,6 +382,32 @@
         "node": "^8.16.0 || ^10.6.0 || >=11.0.0"
       }
     },
+    "node_modules/function-bind": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/function-bind/-/function-bind-1.1.1.tgz",
+      "integrity": "sha512-yIovAzMX49sF8Yl58fSCWJ5svSLuaibPxXQJFLmBObTuCr0Mf1KiPopGM9NiFjiYBCbfaa2Fh6breQ6ANVTI0A==",
+      "dev": true
+    },
+    "node_modules/glob": {
+      "version": "7.1.7",
+      "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.7.tgz",
+      "integrity": "sha512-OvD9ENzPLbegENnYP5UUfJIirTg4+XwMWGaQfQTY0JenxNvvIKP3U3/tAQSPIu/lHxXYSZmpXlUHeqAIdKzBLQ==",
+      "dev": true,
+      "dependencies": {
+        "fs.realpath": "^1.0.0",
+        "inflight": "^1.0.4",
+        "inherits": "2",
+        "minimatch": "^3.0.4",
+        "once": "^1.3.0",
+        "path-is-absolute": "^1.0.0"
+      },
+      "engines": {
+        "node": "*"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/isaacs"
+      }
+    },
     "node_modules/glob-parent": {
       "version": "5.1.2",
       "resolved": "https://registry.npmjs.org/glob-parent/-/glob-parent-5.1.2.tgz",
@@ -230,6 +419,18 @@
         "node": ">= 6"
       }
     },
+    "node_modules/has": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/has/-/has-1.0.3.tgz",
+      "integrity": "sha512-f2dvO0VU6Oej7RkWJGrehjbzMAjFp5/VKPp5tTpWIV4JHHZK1/BxbFRtf/siA2SWTe09caDmVtYYzWEIbBS4zw==",
+      "dev": true,
+      "dependencies": {
+        "function-bind": "^1.1.1"
+      },
+      "engines": {
+        "node": ">= 0.4.0"
+      }
+    },
     "node_modules/has-flag": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-3.0.0.tgz",
@@ -238,6 +439,22 @@
         "node": ">=4"
       }
     },
+    "node_modules/inflight": {
+      "version": "1.0.6",
+      "resolved": "https://registry.npmjs.org/inflight/-/inflight-1.0.6.tgz",
+      "integrity": "sha1-Sb1jMdfQLQwJvJEKEHW6gWW1bfk=",
+      "dev": true,
+      "dependencies": {
+        "once": "^1.3.0",
+        "wrappy": "1"
+      }
+    },
+    "node_modules/inherits": {
+      "version": "2.0.4",
+      "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
+      "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==",
+      "dev": true
+    },
     "node_modules/iofs": {
       "version": "1.5.2",
       "resolved": "https://registry.npmjs.org/iofs/-/iofs-1.5.2.tgz",
@@ -254,6 +471,18 @@
         "node": ">=8"
       }
     },
+    "node_modules/is-core-module": {
+      "version": "2.4.0",
+      "resolved": "https://registry.npmjs.org/is-core-module/-/is-core-module-2.4.0.tgz",
+      "integrity": "sha512-6A2fkfq1rfeQZjxrZJGerpLCTHRNEBiSgnu0+obeJpEPZRUooHgsizvzv0ZjJwOz3iWIHdJtVWJ/tmPr3D21/A==",
+      "dev": true,
+      "dependencies": {
+        "has": "^1.0.3"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
     "node_modules/is-extglob": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/is-extglob/-/is-extglob-2.1.1.tgz",
@@ -273,6 +502,12 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/is-module": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/is-module/-/is-module-1.0.0.tgz",
+      "integrity": "sha1-Mlj7afeMFNW4FdZkM2tM/7ZEFZE=",
+      "dev": true
+    },
     "node_modules/is-number": {
       "version": "7.0.0",
       "resolved": "https://registry.npmjs.org/is-number/-/is-number-7.0.0.tgz",
@@ -281,6 +516,36 @@
         "node": ">=0.12.0"
       }
     },
+    "node_modules/is-reference": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/is-reference/-/is-reference-1.2.1.tgz",
+      "integrity": "sha512-U82MsXXiFIrjCK4otLT+o2NA2Cd2g5MLoOVXUZjIOhLurrRxpEXzI8O0KZHr3IjLvlAH1kTPYSuqer5T9ZVBKQ==",
+      "dev": true,
+      "dependencies": {
+        "@types/estree": "*"
+      }
+    },
+    "node_modules/magic-string": {
+      "version": "0.25.7",
+      "resolved": "https://registry.npmjs.org/magic-string/-/magic-string-0.25.7.tgz",
+      "integrity": "sha512-4CrMT5DOHTDk4HYDlzmwu4FVCcIYI8gauveasrdCu2IKIFOJ3f0v/8MDGJCDL9oD2ppz/Av1b0Nj345H9M+XIA==",
+      "dev": true,
+      "dependencies": {
+        "sourcemap-codec": "^1.4.4"
+      }
+    },
+    "node_modules/minimatch": {
+      "version": "3.0.4",
+      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.0.4.tgz",
+      "integrity": "sha512-yJHVQEhyqPLUTgt9B83PXu6W3rx4MvvHvSUvToogpwoGDOUQ+yDrR0HRot+yOCdCO7u4hX3pWft6kWBBcqh0UA==",
+      "dev": true,
+      "dependencies": {
+        "brace-expansion": "^1.1.7"
+      },
+      "engines": {
+        "node": "*"
+      }
+    },
     "node_modules/node-releases": {
       "version": "1.1.73",
       "resolved": "https://registry.npmjs.org/node-releases/-/node-releases-1.1.73.tgz",
@@ -307,6 +572,30 @@
       "resolved": "https://registry.npmjs.org/num2fraction/-/num2fraction-1.2.2.tgz",
       "integrity": "sha1-b2gragJ6Tp3fpFZM0lidHU5mnt4="
     },
+    "node_modules/once": {
+      "version": "1.4.0",
+      "resolved": "https://registry.npmjs.org/once/-/once-1.4.0.tgz",
+      "integrity": "sha1-WDsap3WWHUsROsF9nFC6753Xa9E=",
+      "dev": true,
+      "dependencies": {
+        "wrappy": "1"
+      }
+    },
+    "node_modules/path-is-absolute": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/path-is-absolute/-/path-is-absolute-1.0.1.tgz",
+      "integrity": "sha1-F0uSaHNVNP+8es5r9TpanhtcX18=",
+      "dev": true,
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
+    "node_modules/path-parse": {
+      "version": "1.0.7",
+      "resolved": "https://registry.npmjs.org/path-parse/-/path-parse-1.0.7.tgz",
+      "integrity": "sha512-LDJzPVEEEPR+y48z93A0Ed0yXb8pAByGWo/k5YYdYgpY2/2EsOsksJrq7lOHxryrVOn1ejG6oAp8ahvOIQD8sw==",
+      "dev": true
+    },
     "node_modules/picomatch": {
       "version": "2.3.0",
       "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-2.3.0.tgz",
@@ -351,6 +640,34 @@
         "node": ">=8.10.0"
       }
     },
+    "node_modules/resolve": {
+      "version": "1.20.0",
+      "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.20.0.tgz",
+      "integrity": "sha512-wENBPt4ySzg4ybFQW2TT1zMQucPK95HSh/nq2CFTZVOGut2+pQvSsgtda4d26YrYcr067wjbmzOG8byDPBX63A==",
+      "dev": true,
+      "dependencies": {
+        "is-core-module": "^2.2.0",
+        "path-parse": "^1.0.6"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/rollup": {
+      "version": "2.52.7",
+      "resolved": "https://registry.npmjs.org/rollup/-/rollup-2.52.7.tgz",
+      "integrity": "sha512-55cSH4CCU6MaPr9TAOyrIC+7qFCHscL7tkNsm1MBfIJRRqRbCEY0mmeFn4Wg8FKsHtEH8r389Fz38r/o+kgXLg==",
+      "dev": true,
+      "bin": {
+        "rollup": "dist/bin/rollup"
+      },
+      "engines": {
+        "node": ">=10.0.0"
+      },
+      "optionalDependencies": {
+        "fsevents": "~2.3.2"
+      }
+    },
     "node_modules/sass": {
       "version": "1.35.1",
       "resolved": "https://registry.npmjs.org/sass/-/sass-1.35.1.tgz",
@@ -373,6 +690,12 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/sourcemap-codec": {
+      "version": "1.4.8",
+      "resolved": "https://registry.npmjs.org/sourcemap-codec/-/sourcemap-codec-1.4.8.tgz",
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@@ -394,9 +717,93 @@
       "engines": {
         "node": ">=8.0"
       }
+    },
+    "node_modules/wrappy": {
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+      "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
+      "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
+      "dev": true
     }
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+      "version": "19.0.0",
+      "resolved": "https://registry.npmjs.org/@rollup/plugin-commonjs/-/plugin-commonjs-19.0.0.tgz",
+      "integrity": "sha512-adTpD6ATGbehdaQoZQ6ipDFhdjqsTgpOAhFiPwl+dzre4pPshsecptDPyEFb61JMJ1+mGljktaC4jI8ARMSNyw==",
+      "dev": true,
+      "requires": {
+        "@rollup/pluginutils": "^3.1.0",
+        "commondir": "^1.0.1",
+        "estree-walker": "^2.0.1",
+        "glob": "^7.1.6",
+        "is-reference": "^1.2.1",
+        "magic-string": "^0.25.7",
+        "resolve": "^1.17.0"
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+    "@rollup/plugin-json": {
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/@rollup/plugin-json/-/plugin-json-4.1.0.tgz",
+      "integrity": "sha512-yfLbTdNS6amI/2OpmbiBoW12vngr5NW2jCJVZSBEz+H5KfUJZ2M7sDjk0U6GOOdCWFVScShte29o9NezJ53TPw==",
+      "dev": true,
+      "requires": {
+        "@rollup/pluginutils": "^3.0.8"
+      }
+    },
+    "@rollup/plugin-node-resolve": {
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+      "resolved": "https://registry.npmjs.org/@rollup/plugin-node-resolve/-/plugin-node-resolve-13.0.0.tgz",
+      "integrity": "sha512-41X411HJ3oikIDivT5OKe9EZ6ud6DXudtfNrGbC4nniaxx2esiWjkLOzgnZsWq1IM8YIeL2rzRGLZLBjlhnZtQ==",
+      "dev": true,
+      "requires": {
+        "@rollup/pluginutils": "^3.1.0",
+        "@types/resolve": "1.17.1",
+        "builtin-modules": "^3.1.0",
+        "deepmerge": "^4.2.2",
+        "is-module": "^1.0.0",
+        "resolve": "^1.19.0"
+      }
+    },
+    "@rollup/pluginutils": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/@rollup/pluginutils/-/pluginutils-3.1.0.tgz",
+      "integrity": "sha512-GksZ6pr6TpIjHm8h9lSQ8pi8BE9VeubNT0OMJ3B5uZJ8pz73NPiqOtCog/x2/QzM1ENChPKxMDhiQuRHsqc+lg==",
+      "dev": true,
+      "requires": {
+        "@types/estree": "0.0.39",
+        "estree-walker": "^1.0.1",
+        "picomatch": "^2.2.2"
+      },
+      "dependencies": {
+        "estree-walker": {
+          "version": "1.0.1",
+          "resolved": "https://registry.npmjs.org/estree-walker/-/estree-walker-1.0.1.tgz",
+          "integrity": "sha512-1fMXF3YP4pZZVozF8j/ZLfvnR8NSIljt56UhbZ5PeeDmmGHpgpdwQt7ITlGvYaQukCvuBRMLEiKiYC+oeIg4cg==",
+          "dev": true
+        }
+      }
+    },
+    "@types/estree": {
+      "version": "0.0.39",
+      "resolved": "https://registry.npmjs.org/@types/estree/-/estree-0.0.39.tgz",
+      "integrity": "sha512-EYNwp3bU+98cpU4lAWYYL7Zz+2gryWH1qbdDTidVd6hkiR6weksdbMadyXKXNPEkQFhXM+hVO9ZygomHXp+AIw==",
+      "dev": true
+    },
+    "@types/node": {
+      "version": "15.14.0",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-15.14.0.tgz",
+      "integrity": "sha512-um/+/ip3QZmwLfIkWZSNtQIJNVAqrJ92OkLMeuZrjZMTAJniI7fh8N8OICyDhAJ2mzgk/fmYFo72jRr5HyZ1EQ==",
+      "dev": true
+    },
+    "@types/resolve": {
+      "version": "1.17.1",
+      "resolved": "https://registry.npmjs.org/@types/resolve/-/resolve-1.17.1.tgz",
+      "integrity": "sha512-yy7HuzQhj0dhGpD8RLXSZWEkLsV9ibvxvi6EiJ3bkqLAO1RGo0WbkWQiwpRlSFymTJRz0d3k5LM3kkx8ArDbLw==",
+      "dev": true,
+      "requires": {
+        "@types/node": "*"
+      }
+    },
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       "version": "3.2.1",
       "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
@@ -428,11 +835,27 @@
         "postcss-value-parser": "^4.1.0"
       }
     },
+    "balanced-match": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.2.tgz",
+      "integrity": "sha512-3oSeUO0TMV67hN1AmbXsK4yaqU7tjiHlbxRDZOpH0KW9+CeX4bRAaX0Anxt0tx2MrpRpWwQaPwIlISEJhYU5Pw==",
+      "dev": true
+    },
     "binary-extensions": {
       "version": "2.2.0",
       "resolved": "https://registry.npmjs.org/binary-extensions/-/binary-extensions-2.2.0.tgz",
       "integrity": "sha512-jDctJ/IVQbZoJykoeHbhXpOlNBqGNcwXJKJog42E5HDPUwQTSdjCHdihjj0DlnheQ7blbT6dHOafNAiS8ooQKA=="
     },
+    "brace-expansion": {
+      "version": "1.1.11",
+      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz",
+      "integrity": "sha512-iCuPHDFgrHX7H2vEI/5xpz07zSHB00TpugqhmYtVmMO6518mCuRMoOYFldEBl0g187ufozdaHgWKcYFb61qGiA==",
+      "dev": true,
+      "requires": {
+        "balanced-match": "^1.0.0",
+        "concat-map": "0.0.1"
+      }
+    },
     "braces": {
       "version": "3.0.2",
       "resolved": "https://registry.npmjs.org/braces/-/braces-3.0.2.tgz",
@@ -453,6 +876,12 @@
         "node-releases": "^1.1.71"
       }
     },
+    "builtin-modules": {
+      "version": "3.2.0",
+      "resolved": "https://registry.npmjs.org/builtin-modules/-/builtin-modules-3.2.0.tgz",
+      "integrity": "sha512-lGzLKcioL90C7wMczpkY0n/oART3MbBa8R9OFGE1rJxoVI86u4WAGfEk8Wjv10eKSyTHVGkSo3bvBylCEtk7LA==",
+      "dev": true
+    },
     "caniuse-lite": {
       "version": "1.0.30001241",
       "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001241.tgz",
@@ -511,10 +940,28 @@
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     },
+    "commondir": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/commondir/-/commondir-1.0.1.tgz",
+      "integrity": "sha1-3dgA2gxmEnOTzKWVDqloo6rxJTs=",
+      "dev": true
+    },
+    "concat-map": {
+      "version": "0.0.1",
+      "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
+      "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s=",
+      "dev": true
+    },
+    "deepmerge": {
+      "version": "4.2.2",
+      "resolved": "https://registry.npmjs.org/deepmerge/-/deepmerge-4.2.2.tgz",
+      "integrity": "sha512-FJ3UgI4gIl+PHZm53knsuSFpE+nESMr7M4v9QcgB7S63Kj/6WqMiFQJpBBYz1Pt+66bZpP3Q7Lye0Oo9MPKEdg==",
+      "dev": true
+    },
     "electron-to-chromium": {
-      "version": "1.3.762",
-      "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.3.762.tgz",
-      "integrity": "sha512-LehWjRpfPcK8F1Lf/NZoAwWLWnjJVo0SZeQ9j/tvnBWYcT99qDqgo4raAfS2oTKZjPrR/jxruh85DGgDUmywEA=="
+      "version": "1.3.765",
+      "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.3.765.tgz",
+      "integrity": "sha512-4NhcsfZYlr1x4FehYkK+R9CNNTOZ8vLcIu8Y1uWehxYp5r/jlCGAfBqChIubEfdtX+rBQpXx4yJuX/dzILH/nw=="
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       "version": "3.1.1",
@@ -526,6 +973,12 @@
       "resolved": "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz",
       "integrity": "sha1-G2HAViGQqN/2rjuyzwIAyhMLhtQ="
     },
+    "estree-walker": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/estree-walker/-/estree-walker-2.0.2.tgz",
+      "integrity": "sha512-Rfkk/Mp/DL7JVje3u18FxFujQlTNR2q6QfMSMB7AvCBx91NGj/ba3kCfza0f6dVDbw7YlRf/nDrn7pQrCCyQ/w==",
+      "dev": true
+    },
     "fill-range": {
       "version": "7.0.1",
       "resolved": "https://registry.npmjs.org/fill-range/-/fill-range-7.0.1.tgz",
@@ -534,12 +987,38 @@
         "to-regex-range": "^5.0.1"
       }
     },
+    "fs.realpath": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/fs.realpath/-/fs.realpath-1.0.0.tgz",
+      "integrity": "sha1-FQStJSMVjKpA20onh8sBQRmU6k8=",
+      "dev": true
+    },
     "fsevents": {
       "version": "2.3.2",
       "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-2.3.2.tgz",
       "integrity": "sha512-xiqMQR4xAeHTuB9uWm+fFRcIOgKBMiOBP+eXiyT7jsgVCq1bkVygt00oASowB7EdtpOHaaPgKt812P9ab+DDKA==",
       "optional": true
     },
+    "function-bind": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/function-bind/-/function-bind-1.1.1.tgz",
+      "integrity": "sha512-yIovAzMX49sF8Yl58fSCWJ5svSLuaibPxXQJFLmBObTuCr0Mf1KiPopGM9NiFjiYBCbfaa2Fh6breQ6ANVTI0A==",
+      "dev": true
+    },
+    "glob": {
+      "version": "7.1.7",
+      "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.7.tgz",
+      "integrity": "sha512-OvD9ENzPLbegENnYP5UUfJIirTg4+XwMWGaQfQTY0JenxNvvIKP3U3/tAQSPIu/lHxXYSZmpXlUHeqAIdKzBLQ==",
+      "dev": true,
+      "requires": {
+        "fs.realpath": "^1.0.0",
+        "inflight": "^1.0.4",
+        "inherits": "2",
+        "minimatch": "^3.0.4",
+        "once": "^1.3.0",
+        "path-is-absolute": "^1.0.0"
+      }
+    },
     "glob-parent": {
       "version": "5.1.2",
       "resolved": "https://registry.npmjs.org/glob-parent/-/glob-parent-5.1.2.tgz",
@@ -548,11 +1027,36 @@
         "is-glob": "^4.0.1"
       }
     },
+    "has": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/has/-/has-1.0.3.tgz",
+      "integrity": "sha512-f2dvO0VU6Oej7RkWJGrehjbzMAjFp5/VKPp5tTpWIV4JHHZK1/BxbFRtf/siA2SWTe09caDmVtYYzWEIbBS4zw==",
+      "dev": true,
+      "requires": {
+        "function-bind": "^1.1.1"
+      }
+    },
     "has-flag": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-3.0.0.tgz",
       "integrity": "sha1-tdRU3CGZriJWmfNGfloH87lVuv0="
     },
+    "inflight": {
+      "version": "1.0.6",
+      "resolved": "https://registry.npmjs.org/inflight/-/inflight-1.0.6.tgz",
+      "integrity": "sha1-Sb1jMdfQLQwJvJEKEHW6gWW1bfk=",
+      "dev": true,
+      "requires": {
+        "once": "^1.3.0",
+        "wrappy": "1"
+      }
+    },
+    "inherits": {
+      "version": "2.0.4",
+      "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
+      "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==",
+      "dev": true
+    },
     "iofs": {
       "version": "1.5.2",
       "resolved": "https://registry.npmjs.org/iofs/-/iofs-1.5.2.tgz",
@@ -566,6 +1070,15 @@
         "binary-extensions": "^2.0.0"
       }
     },
+    "is-core-module": {
+      "version": "2.4.0",
+      "resolved": "https://registry.npmjs.org/is-core-module/-/is-core-module-2.4.0.tgz",
+      "integrity": "sha512-6A2fkfq1rfeQZjxrZJGerpLCTHRNEBiSgnu0+obeJpEPZRUooHgsizvzv0ZjJwOz3iWIHdJtVWJ/tmPr3D21/A==",
+      "dev": true,
+      "requires": {
+        "has": "^1.0.3"
+      }
+    },
     "is-extglob": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/is-extglob/-/is-extglob-2.1.1.tgz",
@@ -579,11 +1092,44 @@
         "is-extglob": "^2.1.1"
       }
     },
+    "is-module": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/is-module/-/is-module-1.0.0.tgz",
+      "integrity": "sha1-Mlj7afeMFNW4FdZkM2tM/7ZEFZE=",
+      "dev": true
+    },
     "is-number": {
       "version": "7.0.0",
       "resolved": "https://registry.npmjs.org/is-number/-/is-number-7.0.0.tgz",
       "integrity": "sha512-41Cifkg6e8TylSpdtTpeLVMqvSBEVzTttHvERD741+pnZ8ANv0004MRL43QKPDlK9cGvNp6NZWZUBlbGXYxxng=="
     },
+    "is-reference": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/is-reference/-/is-reference-1.2.1.tgz",
+      "integrity": "sha512-U82MsXXiFIrjCK4otLT+o2NA2Cd2g5MLoOVXUZjIOhLurrRxpEXzI8O0KZHr3IjLvlAH1kTPYSuqer5T9ZVBKQ==",
+      "dev": true,
+      "requires": {
+        "@types/estree": "*"
+      }
+    },
+    "magic-string": {
+      "version": "0.25.7",
+      "resolved": "https://registry.npmjs.org/magic-string/-/magic-string-0.25.7.tgz",
+      "integrity": "sha512-4CrMT5DOHTDk4HYDlzmwu4FVCcIYI8gauveasrdCu2IKIFOJ3f0v/8MDGJCDL9oD2ppz/Av1b0Nj345H9M+XIA==",
+      "dev": true,
+      "requires": {
+        "sourcemap-codec": "^1.4.4"
+      }
+    },
+    "minimatch": {
+      "version": "3.0.4",
+      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.0.4.tgz",
+      "integrity": "sha512-yJHVQEhyqPLUTgt9B83PXu6W3rx4MvvHvSUvToogpwoGDOUQ+yDrR0HRot+yOCdCO7u4hX3pWft6kWBBcqh0UA==",
+      "dev": true,
+      "requires": {
+        "brace-expansion": "^1.1.7"
+      }
+    },
     "node-releases": {
       "version": "1.1.73",
       "resolved": "https://registry.npmjs.org/node-releases/-/node-releases-1.1.73.tgz",
@@ -604,6 +1150,27 @@
       "resolved": "https://registry.npmjs.org/num2fraction/-/num2fraction-1.2.2.tgz",
       "integrity": "sha1-b2gragJ6Tp3fpFZM0lidHU5mnt4="
     },
+    "once": {
+      "version": "1.4.0",
+      "resolved": "https://registry.npmjs.org/once/-/once-1.4.0.tgz",
+      "integrity": "sha1-WDsap3WWHUsROsF9nFC6753Xa9E=",
+      "dev": true,
+      "requires": {
+        "wrappy": "1"
+      }
+    },
+    "path-is-absolute": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/path-is-absolute/-/path-is-absolute-1.0.1.tgz",
+      "integrity": "sha1-F0uSaHNVNP+8es5r9TpanhtcX18=",
+      "dev": true
+    },
+    "path-parse": {
+      "version": "1.0.7",
+      "resolved": "https://registry.npmjs.org/path-parse/-/path-parse-1.0.7.tgz",
+      "integrity": "sha512-LDJzPVEEEPR+y48z93A0Ed0yXb8pAByGWo/k5YYdYgpY2/2EsOsksJrq7lOHxryrVOn1ejG6oAp8ahvOIQD8sw==",
+      "dev": true
+    },
     "picomatch": {
       "version": "2.3.0",
       "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-2.3.0.tgz",
@@ -632,6 +1199,25 @@
         "picomatch": "^2.2.1"
       }
     },
+    "resolve": {
+      "version": "1.20.0",
+      "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.20.0.tgz",
+      "integrity": "sha512-wENBPt4ySzg4ybFQW2TT1zMQucPK95HSh/nq2CFTZVOGut2+pQvSsgtda4d26YrYcr067wjbmzOG8byDPBX63A==",
+      "dev": true,
+      "requires": {
+        "is-core-module": "^2.2.0",
+        "path-parse": "^1.0.6"
+      }
+    },
+    "rollup": {
+      "version": "2.52.7",
+      "resolved": "https://registry.npmjs.org/rollup/-/rollup-2.52.7.tgz",
+      "integrity": "sha512-55cSH4CCU6MaPr9TAOyrIC+7qFCHscL7tkNsm1MBfIJRRqRbCEY0mmeFn4Wg8FKsHtEH8r389Fz38r/o+kgXLg==",
+      "dev": true,
+      "requires": {
+        "fsevents": "~2.3.2"
+      }
+    },
     "sass": {
       "version": "1.35.1",
       "resolved": "https://registry.npmjs.org/sass/-/sass-1.35.1.tgz",
@@ -645,6 +1231,12 @@
       "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
       "integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g=="
     },
+    "sourcemap-codec": {
+      "version": "1.4.8",
+      "resolved": "https://registry.npmjs.org/sourcemap-codec/-/sourcemap-codec-1.4.8.tgz",
+      "integrity": "sha512-9NykojV5Uih4lgo5So5dtw+f0JgJX30KCNI8gwhz2J9A15wD0Ml6tjHKwf6fTSa6fAdVBdZeNOs9eJ71qCk8vA==",
+      "dev": true
+    },
     "supports-color": {
       "version": "6.1.0",
       "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-6.1.0.tgz",
@@ -660,6 +1252,12 @@
       "requires": {
         "is-number": "^7.0.0"
       }
+    },
+    "wrappy": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
+      "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
+      "dev": true
     }
   }
 }
diff --git a/package.json b/package.json
index 1412785..8b3d321 100644
--- a/package.json
+++ b/package.json
@@ -9,13 +9,9 @@
   "engines": {
     "vscode": "^1.28.0"
   },
-  "categories": [
-    "Other"
-  ],
-  "activationEvents": [
-    "*"
-  ],
-  "main": "./index",
+  "categories": ["Formatters"],
+  "activationEvents": ["*"],
+  "main": "index.js",
   "contributes": {
     "commands": [
       {
@@ -81,13 +77,21 @@
     "autoprefixer",
     "yutent"
   ],
-  "scripts": {},
+  "scripts": {
+    "start": "npm run vscode:prepublish",
+    "vscode:prepublish": "rollup -c"
+  },
   "license": "MIT",
-  "devDependencies": {},
   "dependencies": {
     "autoprefixer": "^9.3.1",
     "iofs": "^1.1.0",
     "postcss": "^7.0.6",
     "sass": "^1.35.1"
+  },
+  "devDependencies": {
+    "@rollup/plugin-commonjs": "^19.0.0",
+    "@rollup/plugin-json": "^4.1.0",
+    "@rollup/plugin-node-resolve": "^13.0.0",
+    "rollup": "^2.52.7"
   }
 }
diff --git a/rollup.config.js b/rollup.config.js
new file mode 100644
index 0000000..b79c0b9
--- /dev/null
+++ b/rollup.config.js
@@ -0,0 +1,19 @@
+import json from '@rollup/plugin-json'
+import commonjs from '@rollup/plugin-commonjs'
+import resolve from '@rollup/plugin-node-resolve'
+
+export default {
+  input: 'entry.js',
+  output: {
+    file: 'index.js',
+    format: 'cjs'
+  },
+  external: ['vscode', 'fs', 'path', 'url', 'events'],
+  plugins: [
+    json(),
+    commonjs({
+      ignoreDynamicRequires: true
+    }),
+    resolve()
+  ]
+}
diff --git a/test/demo.css b/test/demo.css
deleted file mode 100644
index 229b2aa..0000000
--- a/test/demo.css
+++ /dev/null
@@ -1 +0,0 @@
-ul{display:-webkit-flex;display:-ms-flexbox;display:flex}ul li{-webkit-flex:2;-ms-flex:2;flex:2;color:#fff}
\ No newline at end of file