make.go

// +build ignore

package main

import (
    "bytes"
    "fmt"
    "io/ioutil"
    "os"
    "path/filepath"
    "strings"

    "github.com/kr/text"
)

const dest = "dist"

func main() {
    err := os.MkdirAll(dest, 0777)

    err = dist()
    if err != nil {
        fmt.Println(err)
        os.Exit(1)
    }
    err = embedStyles()
    if err != nil {
        fmt.Println(err)
        os.Exit(1)
    }
    err = embedScripts()
    if err != nil {
        fmt.Println(err)
        os.Exit(1)
    }
    err = embedViews()
    if err != nil {
        fmt.Println(err)
        os.Exit(1)
    }
}

// copy file to dist directory
func dist() error {
    data, err := ioutil.ReadFile("index.html")
    if err != nil {
        return err
    }
    return ioutil.WriteFile("dist/index.html", data, 0777)
}

// embedViews is a helper function that embeds all angular views
// in the main index.html file.
func embedViews() error {
    var buf_ bytes.Buffer
    buf := text.NewIndentWriter(&buf_, []byte("\t"))

    page, err := ioutil.ReadFile("dist/index.html")
    if err != nil {
        return err
    }
    pagestr := string(page)

    views, err := filepath.Glob("scripts/views/*.html")
    if err != nil {
        return err
    }

    for _, view := range views {
        v, err := ioutil.ReadFile(view)
        if err != nil {
            return err
        }

        o := fmt.Sprintf("<script type='text/ng-template' id='/%s'>", view)
        c := "</script>"
        buf.Write([]byte(o))
        buf.Write([]byte(v))
        buf.Write([]byte(c))
    }

    pagestr = strings.Replace(pagestr, "<!--INJECT:VIEWS-->", buf_.String(), -1)
    return ioutil.WriteFile("dist/index.html", []byte(pagestr), 0777)
}

// embedScripts is a helper function that takes all JavaScript
// files and combines into a single file, and writes to /dist/scripts.js
func embedScripts() error {
    var buf bytes.Buffer

    page, err := ioutil.ReadFile("dist/index.html")
    if err != nil {
        return err
    }
    pagestr := string(page)

    paths, err := filepath.Glob("scripts/*/*.js")
    if err != nil {
        return err
    }
    paths = append([]string{"scripts/app.js"}, paths...)

    for _, path := range paths {
        s, err := ioutil.ReadFile(path)
        if err != nil {
            return err
        }

        o := "<script type='text/javascript'>"
        c := "</script>"
        buf.WriteString(o)
        buf.Write(s)
        buf.WriteString(c)
    }

    pagestr = strings.Replace(pagestr, "<!--INJECT:SCRIPTS-->", buf.String(), -1)
    return ioutil.WriteFile("dist/index.html", []byte(pagestr), 0777)
}

// embedScripts is a helper function that takes all JavaScript
// files and combines into a single file, and writes to /dist/scripts.js
func embedStyles() error {
    var buf bytes.Buffer

    page, err := ioutil.ReadFile("dist/index.html")
    if err != nil {
        return err
    }
    pagestr := string(page)

    paths, err := filepath.Glob("styles/*.css")
    if err != nil {
        return err
    }

    for _, path := range paths {
        s, err := ioutil.ReadFile(path)
        if err != nil {
            return err
        }

        o := "<style>"
        c := "</style>"
        buf.WriteString(o)
        buf.Write(s)
        buf.WriteString(c)
    }

    pagestr = strings.Replace(pagestr, "<!--INJECT:STYLES-->", buf.String(), -1)
    return ioutil.WriteFile("dist/index.html", []byte(pagestr), 0777)
}