kbtui/mage.go

// +build mage

package main

import (
	"encoding/json"
	"fmt"
	"io/ioutil"
	"net/http"
	"os"
	"strings"

	"github.com/magefile/mage/mg"
	"github.com/magefile/mage/sh"
)

// emoji related constants
const emojiList = "https://raw.githubusercontent.com/CodeFreezr/emojo/master/db/v5/emoji-v5.json"
const emojiFileName = "emojiList.go"

// json parsing structure
type emoji struct {
	Num         int    `json:"No"`
	Emoji       string `json:"Emoji"`
	Category    string `json:"Category"`
	SubCategory string `json:"SubCategory"`
	Unicode     string `json:"Unicode"`
	Name        string `json:"Name"`
	Tags        string `json:"Tags"`
	Shortcode   string `json:"Shortcode"`
}

// This func downloaded and parses the emojis from online into a slice of all shortnames
// to be used as a lookup for tab completion for emojis
// this way the pull from GitHub only has to be done at build time.
func createEmojiSlice() ([]string, error) {
	result, err := http.Get(emojiList)
	if err != nil {
		return nil, err
	}
	defer result.Body.Close()

	emojiList, err := ioutil.ReadAll(result.Body)
	if err != nil {
		return nil, err
	}

	var emojis []emoji
	if err := json.Unmarshal(emojiList, &emojis); err != nil {
		return nil, err
	}

	var emojiSlice []string

	for _, emj := range emojis {
		if len(emj.Shortcode) == 0 || strings.Contains(emj.Shortcode, "_tone") {
			// dont add them
			continue
		}
		emojiSlice = append(emojiSlice, emj.Shortcode)
	}
	return emojiSlice, nil
}

func getRemotePackages() error {
	var packages = []string{
		"samhofi.us/x/keybase",
		"github.com/awesome-gocui/gocui",
		"github.com/magefile/mage/mage",
		"github.com/magefile/mage/mg",
		"github.com/magefile/mage/sh",
		"github.com/pelletier/go-toml",
	}
	for _, p := range packages {
		if err := sh.Run("go", "get", "-u", p); err != nil {
			return err
		}
	}
	return nil
}

// proper error reporting and exit code
func exit(err error) {
	if err != nil {
		fmt.Fprintf(os.Stderr, "%+v\n", err)
		os.Exit(1)
	}
}

// Build kbtui with emoji lookup support
func BuildEmoji() error {
	mg.Deps(getRemotePackages)
	emojis, err := createEmojiSlice()
	if err != nil {
		return err
	}
	f, err := os.Create(emojiFileName)
	if err != nil {
		return err
	}
	defer f.Close()

	fileContent := fmt.Sprintf("package main\n\nvar emojiSlice = %#v", emojis)
	_, err = f.WriteString(fileContent)
	if err != nil {
		return err
	}
	f.Sync()
	return nil
}

// Build kbtui with just the basic commands.
func Build() {
	mg.Deps(getRemotePackages)
	if err := sh.Run("go", "build"); err != nil {
		defer func() {
			exit(err)
		}()
	}
}

// Build kbtui with the basic commands, and the ShowReactions "TypeCommand".
// The ShowReactions TypeCommand will print a message in the feed window when
// a reaction is received in the current conversation.
func BuildShowReactions() {
	mg.Deps(getRemotePackages)
	if err := sh.Run("go", "build", "-tags", "showreactionscmd"); err != nil {
		defer func() {
			exit(err)
		}()
	}
}

// Build kbtui with the basec commands, and the AutoReact "TypeCommand".
// The AutoReact TypeCommand will automatically react to every message
// received in the current conversation. This gets pretty annoying, and
// is not recommended.
func BuildAutoReact() {
	mg.Deps(getRemotePackages)
	if err := sh.Run("go", "build", "-tags", "autoreactcmd"); err != nil {
		defer func() {
			exit(err)
		}()
	}
}

// Build kbtui with all commands and TypeCommands disabled.
func BuildAllCommands() {
	mg.Deps(getRemotePackages)
	if err := sh.Run("go", "build", "-tags", "allcommands"); err != nil {
		defer func() {
			exit(err)
		}()
	}
}

// Build kbtui with all Commands and TypeCommands enabled.
func BuildAllCommandsT() {
	mg.Deps(getRemotePackages)
	if err := sh.Run("go", "build", "-tags", "type_commands,allcommands"); err != nil {
		defer func() {
			exit(err)
		}()
	}
}

// Build kbtui with beta functionality
func BuildBeta() {
	mg.Deps(getRemotePackages)
	mg.Deps(BuildEmoji)
	if err := sh.Run("go", "build", "-tags", "allcommands,showreactionscmd,emojiList,tabcompletion"); err != nil {
		defer func() {
			exit(err)
		}()
	}
}