7

[Golang] Online Concatenate and Compress JavaScript Files

 3 years ago
source link: http://siongui.github.io/2016/03/07/go-online-concatenate-and-compress-js-files/
Go to the source link to view the article. You can view the picture content, updated content and better typesetting reading experience. If the link is broken, please click the button below to view the snapshot at that time.
neoserver,ios ssh client

[Golang] Online Concatenate and Compress JavaScript Files

March 07, 2016

Concatenate and compress JavaScript files via Golang and online Google Closure Compiler.

package main

import (
      "io/ioutil"
      "net/http"
      "net/url"
      "path"
)

func minjs(baseDir string, jsFiles []string, outputPath string) {
      var jsCode []byte
      for _, file := range jsFiles {
              jsPath := path.Join(baseDir, file)
              println("concatenating " + jsPath + " ...")
              b, err := ioutil.ReadFile(jsPath)
              if err != nil {
                      panic(err)
              }
              jsCode = append(jsCode, b...)
      }

      params := url.Values{}
      //params.Set("code_url", "https://github.com/twnanda/twnanda/raw/master/theme/javascript/tongwen_core.js")
      //params.Set("code_url", "https://github.com/twnanda/twnanda/raw/master/theme/javascript/tongwen_table_ps2t.js")
      //params.Set("code_url", "https://github.com/twnanda/twnanda/raw/master/theme/javascript/tongwen_table_pt2s.js")
      //params.Set("code_url", "https://github.com/twnanda/twnanda/raw/master/theme/javascript/tongwen_table_s2t.js")
      //params.Set("code_url", "https://github.com/twnanda/twnanda/raw/master/theme/javascript/tongwen_table_t2s.js")
      params.Set("js_code", string(jsCode))
      params.Set("compilation_level", "SIMPLE_OPTIMIZATIONS")
      params.Set("language", "ECMASCRIPT5")
      params.Set("output_format", "text")
      params.Set("output_info", "compiled_code")

      println("\nCompressing combined js online ...")
      resp, err := http.PostForm("https://closure-compiler.appspot.com/compile", params)
      if err != nil {
              panic(err)
      }
      defer resp.Body.Close()
      b, err := ioutil.ReadAll(resp.Body)
      if err != nil {
              panic(err)
      }
      ioutil.WriteFile(path.Join(baseDir, outputPath), b, 0644)
}

func main() {
      baseDir := "dictionary"
      jsFiles := []string{
              "common/app/scripts/services/data/dicBooks.js",
              "common/app/scripts/services/data/succinctTrie.js",
              "common/app/scripts/services/data/i18nStrings.js",
              "app/scripts/app.js",
              "app/scripts/controllers.js",
              "app/scripts/directives/inputSuggest.js",
              "app/scripts/directives/draggableAndEvents.js",
              "common/app/scripts/services/paliWordJson.js",
              "common/app/scripts/services/shortExp.js",
              "common/app/scripts/services/ngBits.js",
              "common/app/scripts/services/wordSearch.js",
              "common/app/scripts/directives/dropdown.js",
              "common/app/scripts/filters/expOrder.js",
              "common/app/scripts/i18n.js",
      }
      minjs(baseDir, jsFiles, "app/all_compiled.js")
}

report

Recommend

About Joyk


Aggregate valuable and interesting links.
Joyk means Joy of geeK