make updates

utils/_unused/commands/commands.go

@@ -0,0 +1,15 @@
+package commands
+
+import (
+	"os"
+	"os/exec"
+)
+
+// Run executes an external command
+func Run(command string, args []string, path string) error {
+	cmd := exec.Command(command, args...)
+	cmd.Dir = path
+	cmd.Stdout = os.Stderr
+	cmd.Stderr = os.Stderr
+	return cmd.Run()
+}

utils/_unused/files/files.go

@@ -0,0 +1,30 @@
+package files
+
+import (
+	"io"
+	"os"
+)
+
+// CopyFile is used to copy a file
+func CopyFile(old, new string) error {
+	// Open the file and create a new one
+	r, err := os.Open(old)
+	if err != nil {
+		return err
+	}
+	defer r.Close()
+
+	w, err := os.Create(new)
+	if err != nil {
+		return err
+	}
+	defer w.Close()
+
+	// Copy the content
+	_, err = io.Copy(w, r)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}

utils/_unused/files/files_test.go

@@ -0,0 +1,11 @@
+package files
+
+import "testing"
+
+func TestCopyFile(t *testing.T) {
+	err := CopyFile("test_data/file_to_copy.txt", "test_data/copied_file.txt")
+
+	if err != nil {
+		t.Error("Can't copy the file.")
+	}
+}

utils/_unused/files/test_data/file_to_copy.txt

@@ -0,0 +1,9 @@
+Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin faucibus augue vel ex auctor molestie. Sed id lorem quis velit eleifend vestibulum. Etiam tincidunt nulla et metus dictum imperdiet. Suspendisse ac auctor risus. Donec tempus eros quis erat interdum fringilla. Duis ac tristique lorem, quis vulputate enim. In ut est elementum, dignissim tellus quis, ultrices diam. Aenean in efficitur velit, ut imperdiet felis. Suspendisse aliquet accumsan ligula, a iaculis sem luctus vel. Integer sagittis, orci viverra lacinia efficitur, eros magna sodales sapien, in tristique ante arcu ut nunc. Maecenas odio dolor, semper quis vehicula ut, malesuada sollicitudin massa. Integer dolor ligula, hendrerit convallis quam at, luctus dignissim nibh. Fusce interdum congue justo, at imperdiet lorem maximus in.
+
+Curabitur dignissim id turpis ut eleifend. Pellentesque vehicula et purus et consectetur. Nulla facilisis vehicula nunc in imperdiet. Nam eget porta libero, vel dapibus leo. Maecenas iaculis, arcu quis vehicula sollicitudin, massa tortor mattis tortor, vitae venenatis erat neque et dui. Mauris eleifend vel urna ac interdum. Sed convallis, arcu et scelerisque suscipit, nulla urna laoreet mauris, quis aliquam dolor elit id mauris. Pellentesque ac pulvinar nibh. Duis vestibulum ligula orci, et mattis turpis facilisis mattis. Vivamus feugiat neque sed aliquet aliquet. Sed consequat augue sagittis eros imperdiet, ac lacinia erat tempor. Cras gravida mi a orci euismod feugiat. Mauris condimentum turpis id quam vulputate, et maximus dolor hendrerit.
+
+Ut nisi urna, sollicitudin ac facilisis eu, rhoncus sed urna. Interdum et malesuada fames ac ante ipsum primis in faucibus. Nulla eu maximus mi, sed commodo diam. Nunc scelerisque tincidunt ipsum eget mattis. Fusce id finibus nisi, sit amet tempus tortor. Fusce accumsan lectus at dignissim volutpat. Nullam nisl nulla, rhoncus id arcu vitae, eleifend posuere libero. Aliquam dictum bibendum bibendum. Integer non mattis neque. Phasellus fermentum et ex vel vehicula.
+
+Proin eget ligula lorem. Ut vehicula quis augue sed aliquet. Nulla viverra turpis nulla. Morbi et ipsum odio. Nulla in nisi suscipit justo blandit tristique ac vitae ipsum. Donec viverra dictum arcu. Duis est elit, ultrices a massa non, lobortis maximus eros. Nulla porttitor rhoncus lectus in finibus. Duis convallis sapien porta, fringilla orci nec, ultricies nisl. Morbi pulvinar quam in nulla rutrum euismod.
+
+Donec et accumsan lectus, consectetur posuere nunc. Quisque et quam hendrerit, vestibulum quam eget, luctus enim. In hac habitasse platea dictumst. Nunc et est scelerisque, bibendum neque quis, ornare elit. Aliquam erat volutpat. Nulla maximus nibh vitae ex interdum, a efficitur lacus eleifend. Nam vestibulum blandit aliquet. In hac habitasse platea dictumst. Maecenas interdum quam et lorem posuere interdum. Mauris id feugiat augue. Etiam vestibulum pharetra cursus.

utils/_unused/frontmatter/frontmatter.go

@@ -0,0 +1,173 @@
+package frontmatter
+
+import (
+	"log"
+	"reflect"
+	"sort"
+	"strings"
+
+	"github.com/hacdias/caddy-hugo/tools/variables"
+	"github.com/spf13/cast"
+	"github.com/spf13/hugo/parser"
+)
+
+const (
+	mainName   = "#MAIN#"
+	objectType = "object"
+	arrayType  = "array"
+)
+
+var mainTitle = ""
+
+// Pretty creates a new FrontMatter object
+func Pretty(content []byte) (interface{}, string, error) {
+	frontType := parser.DetectFrontMatter(rune(content[0]))
+	front, err := frontType.Parse(content)
+
+	if err != nil {
+		return []string{}, mainTitle, err
+	}
+
+	object := new(frontmatter)
+	object.Type = objectType
+	object.Name = mainName
+
+	return rawToPretty(front, object), mainTitle, nil
+}
+
+type frontmatter struct {
+	Name     string
+	Title    string
+	Content  interface{}
+	Type     string
+	HTMLType string
+	Parent   *frontmatter
+}
+
+func rawToPretty(config interface{}, parent *frontmatter) interface{} {
+	objects := []*frontmatter{}
+	arrays := []*frontmatter{}
+	fields := []*frontmatter{}
+
+	cnf := map[string]interface{}{}
+
+	if reflect.TypeOf(config) == reflect.TypeOf(map[interface{}]interface{}{}) {
+		for key, value := range config.(map[interface{}]interface{}) {
+			cnf[key.(string)] = value
+		}
+	} else if reflect.TypeOf(config) == reflect.TypeOf([]interface{}{}) {
+		for key, value := range config.([]interface{}) {
+			cnf[string(key)] = value
+		}
+	} else {
+		cnf = config.(map[string]interface{})
+	}
+
+	for name, element := range cnf {
+		if variables.IsMap(element) {
+			objects = append(objects, handleObjects(element, parent, name))
+		} else if variables.IsSlice(element) {
+			arrays = append(arrays, handleArrays(element, parent, name))
+		} else {
+			if name == "title" && parent.Name == mainName {
+				mainTitle = element.(string)
+			}
+
+			fields = append(fields, handleFlatValues(element, parent, name))
+		}
+	}
+
+	sort.Sort(sortByTitle(objects))
+	sort.Sort(sortByTitle(arrays))
+	sort.Sort(sortByTitle(fields))
+
+	settings := []*frontmatter{}
+	settings = append(settings, fields...)
+	settings = append(settings, arrays...)
+	settings = append(settings, objects...)
+	return settings
+}
+
+type sortByTitle []*frontmatter
+
+func (f sortByTitle) Len() int      { return len(f) }
+func (f sortByTitle) Swap(i, j int) { f[i], f[j] = f[j], f[i] }
+func (f sortByTitle) Less(i, j int) bool {
+	return strings.ToLower(f[i].Name) < strings.ToLower(f[j].Name)
+}
+
+func handleObjects(content interface{}, parent *frontmatter, name string) *frontmatter {
+	c := new(frontmatter)
+	c.Parent = parent
+	c.Type = objectType
+	c.Title = name
+
+	if parent.Name == mainName {
+		c.Name = c.Title
+	} else if parent.Type == arrayType {
+		c.Name = parent.Name + "[]"
+	} else {
+		c.Name = parent.Name + "[" + c.Title + "]"
+	}
+
+	c.Content = rawToPretty(content, c)
+	return c
+}
+
+func handleArrays(content interface{}, parent *frontmatter, name string) *frontmatter {
+	c := new(frontmatter)
+	c.Parent = parent
+	c.Type = arrayType
+	c.Title = name
+
+	if parent.Name == mainName {
+		c.Name = name
+	} else {
+		c.Name = parent.Name + "[" + name + "]"
+	}
+
+	c.Content = rawToPretty(content, c)
+	return c
+}
+
+func handleFlatValues(content interface{}, parent *frontmatter, name string) *frontmatter {
+	c := new(frontmatter)
+	c.Parent = parent
+
+	switch reflect.ValueOf(content).Kind() {
+	case reflect.Bool:
+		c.Type = "boolean"
+	case reflect.Int, reflect.Float32, reflect.Float64:
+		c.Type = "number"
+	default:
+		c.Type = "string"
+	}
+
+	c.Content = content
+
+	switch strings.ToLower(name) {
+	case "description":
+		c.HTMLType = "textarea"
+	case "date", "publishdate":
+		c.HTMLType = "datetime"
+		c.Content = cast.ToTime(content)
+	default:
+		c.HTMLType = "text"
+	}
+
+	if parent.Type == arrayType {
+		c.Name = parent.Name + "[]"
+		c.Title = content.(string)
+	} else if parent.Type == objectType {
+		c.Title = name
+		c.Name = parent.Name + "[" + name + "]"
+
+		if parent.Name == mainName {
+			c.Name = name
+		}
+	} else {
+		log.Panic("Parent type not allowed in handleFlatValues.")
+	}
+
+	return c
+}

utils/_unused/hugo/hugo.go

@@ -0,0 +1,38 @@
+package hugo
+
+import (
+	"log"
+	"os"
+
+	"github.com/hacdias/caddy-hugo/config"
+	"github.com/hacdias/caddy-hugo/tools/commands"
+)
+
+// Run is used to run the static website generator
+func Run(c *config.Config.Config, force bool) {
+	os.RemoveAll(c.Path + "public")
+
+	// Prevent running if watching is enabled
+	if b, pos := stringInSlice("--watch", c.Args); b && !force {
+		if len(c.Args) > pos && c.Args[pos+1] != "false" {
+			return
+		}
+
+		if len(c.Args) == pos+1 {
+			return
+		}
+	}
+
+	if err := commands.Run(c.Hugo, c.Args, c.Path); err != nil {
+		log.Panic(err)
+	}
+}
+
+func stringInSlice(a string, list []string) (bool, int) {
+	for i, b := range list {
+		if b == a {
+			return true, i
+		}
+	}
+	return false, 0
+}

utils/_unused/installer/hashes.go

@@ -0,0 +1,25 @@
+package installer
+
+var (
+	sha256Hash = map[string]string{
+		"hugo_0.16_darwin-arm32.tgz":    "683d5d4b4e0ac03a183ca5eb9019981ba696569445c7d6d1efc7e6706bd273a5",
+		"hugo_0.16_dragonfly-64bit.tgz": "63a3ee9a36d4d2166c77b96bb8bf39b2239affe118e44a83b3d0a44374a8921d",
+		"hugo_0.16_freebsd-32bit.tgz":   "ea3f84900feeeb9d89573dea49a4349753116e70de561eeec4858f7ffc74f8f9",
+		"hugo_0.16_freebsd-64bit.tgz":   "8d9320bb660090a77a4f922ca30b1582593bc6d87c3fd8bd6f5ecbe49cf1d2f2",
+		"hugo_0.16_freebsd-arm32.tgz":   "b4c21296e01ea68709ac50d7eb1d314b738f1c8408ff2be223d06ae76604dbea",
+		"hugo_0.16_linux-32bit.tgz":     "aed82d156f01a4562c39bd1af41aa81699009140da965e0369c370ba874725c9",
+		"hugo_0.16_linux-64bit.tgz":     "13e299dc45bea4fad5bdf8c2640305a5926e2acd02c3aa03b7864403e513920e",
+		"hugo_0.16_linux-arm32.tgz":     "bc836def127d93e2457da9994f9c09b0100523e46d61074cd724ef092b11714f",
+		"hugo_0.16_linux-arm64.tgz":     "d04486918f43f89f1e0359eebedd8a05d96f7ca40f93e7fd8d7c3f2dac115a8d",
+		"hugo_0.16_netbsd-32bit.tgz":    "cb578eebec5b6364b0afd5bb208d94317acab0a3e033b81f04b1511af0669b63",
+		"hugo_0.16_netbsd-64bit.tgz":    "d3c766d9800d7fdd268ffd2f28b7af451f13a4de63901bfdae2ee5c96528b8cc",
+		"hugo_0.16_netbsd-arm32.tgz":    "51162b2637e71b786582af715a44b778f62bdc62a9a354ccc4a7c8384afe194c",
+		"hugo_0.16_openbsd-32bit.tgz":   "2d1e112a7346850897ea77da868c0d987ef90efb7f49c917659437a5a67f89f8",
+		"hugo_0.16_openbsd-64bit.tgz":   "7b33ff2565df5a6253c3e4308813d947e34af04c633fb4e01cac83751066e16e",
+		"hugo_0.16_osx-32bit.tgz":       "6155dda548bbd1e26c26a4a00472e4c0e55fad9fcd46991ce90987385bd5fd0a",
+		"hugo_0.16_osx-64bit.tgz":       "b0cba8f6996946ef34a664184d6461567d79fc2a3e793145d34379902eda0ad9",
+		"hugo_0.16_solaris-64bit.tgz":   "af9557403af5e16eb7faf965c04540417a70699efbbbc4e0a7ae4c4703ad1ae8",
+		"hugo_0.16_windows-32bit.zip":   "1c72d06843fe02cb62348660d87a523c885ed684a683271fc8762e7234c4210b",
+		"hugo_0.16_windows-64bit.zip":   "a3fda0bd30592e4eb3bdde85c8a8ce23a7433073536466d16fd0e97bf7794067",
+	}
+)

utils/_unused/installer/installer.go

@@ -0,0 +1,216 @@
+package installer
+
+import (
+	"crypto/sha256"
+	"encoding/hex"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"log"
+	"net/http"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"regexp"
+	"runtime"
+
+	"github.com/hacdias/caddy-hugo/tools/files"
+	"github.com/mitchellh/go-homedir"
+	"github.com/pivotal-golang/archiver/extractor"
+)
+
+const (
+	version = "0.16"
+	baseurl = "https://github.com/spf13/hugo/releases/download/v" + version + "/"
+)
+
+var caddy, bin, temp, hugo, tempfile, zipname, exename string
+
+// GetPath retrives the Hugo path for the user or install it if it's not found
+func GetPath() string {
+	initializeVariables()
+
+	var err error
+
+	// Check if Hugo is already on $PATH
+	if hugo, err = exec.LookPath("hugo"); err == nil {
+		if checkVersion() {
+			return hugo
+		}
+	}
+
+	// Check if Hugo is on $HOME/.caddy/bin
+	if _, err = os.Stat(hugo); err == nil {
+		if checkVersion() {
+			return hugo
+		}
+	}
+
+	fmt.Println("Unable to find Hugo on your computer.")
+
+	// Create the neccessary folders
+	os.MkdirAll(caddy, 0774)
+	os.Mkdir(bin, 0774)
+
+	if temp, err = ioutil.TempDir("", "caddy-hugo"); err != nil {
+		fmt.Println(err)
+		os.Exit(-1)
+	}
+
+	downloadHugo()
+	checkSHA256()
+
+	fmt.Print("Unzipping... ")
+
+	// Unzip or Ungzip the file
+	switch runtime.GOOS {
+	case "darwin", "windows":
+		zp := extractor.NewZip()
+		err = zp.Extract(tempfile, temp)
+	default:
+		gz := extractor.NewTgz()
+		err = gz.Extract(tempfile, temp)
+	}
+
+	if err != nil {
+		fmt.Println(err)
+		os.Exit(-1)
+	}
+
+	fmt.Println("done.")
+
+	var exetorename string
+
+	err = filepath.Walk(temp, func(path string, f os.FileInfo, err error) error {
+		if f.Name() == exename {
+			exetorename = path
+		}
+
+		return nil
+	})
+
+	// Copy the file
+	fmt.Print("Moving Hugo executable... ")
+	err = files.CopyFile(exetorename, hugo)
+	if err != nil {
+		fmt.Println(err)
+		os.Exit(-1)
+	}
+
+	err = os.Chmod(hugo, 0755)
+	if err != nil {
+		fmt.Println(err)
+		os.Exit(-1)
+	}
+
+	fmt.Println("done.")
+	fmt.Println("Hugo installed at " + hugo)
+	defer os.RemoveAll(temp)
+	return hugo
+}
+
+func initializeVariables() {
+	var arch string
+	switch runtime.GOARCH {
+	case "amd64":
+		arch = "64bit"
+	case "386":
+		arch = "32bit"
+	case "arm":
+		arch = "arm32"
+	default:
+		arch = runtime.GOARCH
+	}
+
+	var ops = runtime.GOOS
+	if runtime.GOOS == "darwin" && runtime.GOARCH != "arm" {
+		ops = "osx"
+	}
+
+	exename = "hugo"
+	zipname = "hugo_" + version + "_" + ops + "-" + arch
+
+	homedir, err := homedir.Dir()
+	if err != nil {
+		fmt.Println(err)
+		os.Exit(-1)
+	}
+
+	caddy = filepath.Join(homedir, ".caddy")
+	bin = filepath.Join(caddy, "bin")
+	hugo = filepath.Join(bin, "hugo")
+
+	switch runtime.GOOS {
+	case "windows":
+		zipname += ".zip"
+		exename += ".exe"
+		hugo += ".exe"
+	default:
+		zipname += ".tgz"
+	}
+}
+
+func checkVersion() bool {
+	out, _ := exec.Command("hugo", "version").Output()
+
+	r := regexp.MustCompile(`v\d\.\d{2}`)
+	v := r.FindStringSubmatch(string(out))[0]
+	v = v[1:len(v)]
+
+	return (v == version)
+}
+
+func downloadHugo() {
+	tempfile = filepath.Join(temp, zipname)
+
+	fmt.Print("Downloading Hugo from GitHub releases... ")
+
+	// Create the file
+	out, err := os.Create(tempfile)
+	out.Chmod(0774)
+	if err != nil {
+		defer os.RemoveAll(temp)
+		fmt.Println(err)
+		os.Exit(-1)
+	}
+	defer out.Close()
+
+	// Get the data
+	resp, err := http.Get(baseurl + zipname)
+	if err != nil {
+		fmt.Println("An error ocurred while downloading. If this error persists, try downloading Hugo from \"https://github.com/spf13/hugo/releases/\" and put the executable in " + bin + " and rename it to 'hugo' or 'hugo.exe' if you're on Windows.")
+		fmt.Println(err)
+		os.Exit(-1)
+	}
+	defer resp.Body.Close()
+
+	// Writer the body to file
+	_, err = io.Copy(out, resp.Body)
+	if err != nil {
+		fmt.Println(err)
+		os.Exit(-1)
+	}
+
+	fmt.Println("downloaded.")
+}
+
+func checkSHA256() {
+	fmt.Print("Checking SHA256...")
+
+	hasher := sha256.New()
+	f, err := os.Open(tempfile)
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer f.Close()
+	if _, err := io.Copy(hasher, f); err != nil {
+		log.Fatal(err)
+	}
+
+	if hex.EncodeToString(hasher.Sum(nil)) != sha256Hash[zipname] {
+		fmt.Println("can't verify SHA256.")
+		os.Exit(-1)
+	}
+
+	fmt.Println("checked!")
+}

utils/_unused/server/response.go

@@ -0,0 +1,24 @@
+package server
+
+import (
+	"encoding/json"
+	"net/http"
+)
+
+// RespondJSON used to send JSON responses to the web server
+func RespondJSON(w http.ResponseWriter, message interface{}, code int, err error) (int, error) {
+	if message == nil {
+		message = map[string]string{}
+	}
+
+	msg, msgErr := json.Marshal(message)
+
+	if msgErr != nil {
+		return 500, msgErr
+	}
+
+	w.Header().Set("Content-Type", "application/json")
+	w.WriteHeader(code)
+	w.Write(msg)
+	return 0, err
+}

utils/_unused/server/url.go

@@ -0,0 +1,26 @@
+package server
+
+import (
+	"net/http"
+	"strings"
+)
+
+// ParseURLComponents parses the components of an URL creating an array
+func ParseURLComponents(r *http.Request) []string {
+	//The URL that the user queried.
+	path := r.URL.Path
+	path = strings.TrimSpace(path)
+	//Cut off the leading and trailing forward slashes, if they exist.
+	//This cuts off the leading forward slash.
+	if strings.HasPrefix(path, "/") {
+		path = path[1:]
+	}
+	//This cuts off the trailing forward slash.
+	if strings.HasSuffix(path, "/") {
+		cutOffLastCharLen := len(path) - 1
+		path = path[:cutOffLastCharLen]
+	}
+	//We need to isolate the individual components of the path.
+	components := strings.Split(path, "/")
+	return components
+}

utils/_unused/templates/templates.go

@@ -0,0 +1,73 @@
+package templates
+
+import (
+	"log"
+	"net/http"
+	"strings"
+	"text/template"
+
+	"github.com/hacdias/caddy-hugo/routes/assets"
+)
+
+// CanBeEdited checks if the extension of a file is supported by the editor
+func CanBeEdited(filename string) bool {
+	extensions := [...]string{
+		"md", "markdown", "mdown", "mmark",
+		"asciidoc", "adoc", "ad",
+		"rst",
+		".json", ".toml", ".yaml",
+		".css", ".sass", ".scss",
+		".js",
+		".html",
+		".txt",
+	}
+
+	for _, extension := range extensions {
+		if strings.HasSuffix(filename, extension) {
+			return true
+		}
+	}
+
+	return false
+}
+
+// Get is used to get a ready to use template based on the url and on
+// other sent templates
+func Get(r *http.Request, functions template.FuncMap, templates ...string) (*template.Template, error) {
+	// If this is a pjax request, use the minimal template to send only
+	// the main content
+	if r.Header.Get("X-PJAX") == "true" {
+		templates = append(templates, "base_minimal")
+	} else {
+		templates = append(templates, "base_full")
+	}
+
+	var tpl *template.Template
+
+	// For each template, add it to the the tpl variable
+	for i, t := range templates {
+		// Get the template from the assets
+		page, err := assets.Asset("templates/" + t + ".tmpl")
+
+		// Check if there is some error. If so, the template doesn't exist
+		if err != nil {
+			log.Print(err)
+			return new(template.Template), err
+		}
+
+		// If it's the first iteration, creates a new template and add the
+		// functions map
+		if i == 0 {
+			tpl, err = template.New(t).Funcs(functions).Parse(string(page))
+		} else {
+			tpl, err = tpl.Parse(string(page))
+		}
+
+		if err != nil {
+			log.Print(err)
+			return new(template.Template), err
+		}
+	}
+
+	return tpl, nil
+}

utils/_unused/templates/templates_test.go

@@ -0,0 +1,39 @@
+package templates
+
+import "testing"
+
+type canBeEdited struct {
+	file   string
+	result bool
+}
+
+var canBeEditedPairs = []canBeEdited{
+	{"file.markdown", true},
+	{"file.md", true},
+	{"file.json", true},
+	{"file.toml", true},
+	{"file.yaml", true},
+	{"file.css", true},
+	{"file.sass", true},
+	{"file.scss", true},
+	{"file.js", true},
+	{"file.html", true},
+	{"file.git", false},
+	{"file.log", false},
+	{"file.sh", false},
+	{"file.png", false},
+	{"file.jpg", false},
+}
+
+func TestCanBeEdited(t *testing.T) {
+	for _, pair := range canBeEditedPairs {
+		v := CanBeEdited(pair.file)
+		if v != pair.result {
+			t.Error(
+				"For", pair.file,
+				"expected", pair.result,
+				"got", v,
+			)
+		}
+	}
+}

utils/errors/http.go

@@ -0,0 +1,20 @@
+package errors
+
+import (
+	"net/http"
+	"os"
+)
+
+// ToHTTPCode gets the respective HTTP code for an error
+func ToHTTPCode(err error) int {
+	switch {
+	case os.IsPermission(err):
+		return http.StatusForbidden
+	case os.IsNotExist(err):
+		return http.StatusNotFound
+	case os.IsExist(err):
+		return http.StatusGone
+	default:
+		return http.StatusInternalServerError
+	}
+}

utils/variables/transform.go

@@ -0,0 +1,42 @@
+package variables
+
+import (
+	"strings"
+	"unicode"
+)
+
+var splitCapitalizeExceptions = map[string]string{
+	"youtube":    "YouTube",
+	"github":     "GitHub",
+	"googleplus": "Google Plus",
+	"linkedin":   "LinkedIn",
+}
+
+// SplitCapitalize splits a string by its uppercase letters and capitalize the
+// first letter of the string
+func SplitCapitalize(name string) string {
+	if val, ok := splitCapitalizeExceptions[strings.ToLower(name)]; ok {
+		return val
+	}
+
+	var words []string
+	l := 0
+	for s := name; s != ""; s = s[l:] {
+		l = strings.IndexFunc(s[1:], unicode.IsUpper) + 1
+		if l <= 0 {
+			l = len(s)
+		}
+		words = append(words, s[:l])
+	}
+
+	name = ""
+
+	for _, element := range words {
+		name += element + " "
+	}
+
+	name = strings.ToLower(name[:len(name)-1])
+	name = strings.ToUpper(string(name[0])) + name[1:]
+
+	return name
+}

utils/variables/transform_test.go

@@ -0,0 +1,31 @@
+package variables
+
+import "testing"
+
+type testSplitCapitalize struct {
+	name   string
+	result string
+}
+
+var testSplitCapitalizeCases = []testSplitCapitalize{
+	{"loremIpsum", "Lorem ipsum"},
+	{"LoremIpsum", "Lorem ipsum"},
+	{"loremipsum", "Loremipsum"},
+	{"YouTube", "YouTube"},
+	{"GitHub", "GitHub"},
+	{"GooglePlus", "Google Plus"},
+	{"Facebook", "Facebook"},
+}
+
+func TestSplitCapitalize(t *testing.T) {
+	for _, pair := range testSplitCapitalizeCases {
+		v := SplitCapitalize(pair.name)
+		if v != pair.result {
+			t.Error(
+				"For", pair.name,
+				"expected", pair.result,
+				"got", v,
+			)
+		}
+	}
+}

utils/variables/types.go

@@ -0,0 +1,13 @@
+package variables
+
+import "reflect"
+
+// IsMap checks if some variable is a map
+func IsMap(sth interface{}) bool {
+	return reflect.ValueOf(sth).Kind() == reflect.Map
+}
+
+// IsSlice checks if some variable is a slice
+func IsSlice(sth interface{}) bool {
+	return reflect.ValueOf(sth).Kind() == reflect.Slice
+}

utils/variables/variables.go

@@ -0,0 +1,37 @@
+package variables
+
+import (
+	"errors"
+	"log"
+	"reflect"
+)
+
+// Defined checks if variable is defined in a struct
+func Defined(data interface{}, field string) bool {
+	t := reflect.Indirect(reflect.ValueOf(data)).Type()
+
+	if t.Kind() != reflect.Struct {
+		log.Print("Non-struct type not allowed.")
+		return false
+	}
+
+	_, b := t.FieldByName(field)
+	return b
+}
+
+// Dict allows to send more than one variable into a template
+func Dict(values ...interface{}) (map[string]interface{}, error) {
+	if len(values)%2 != 0 {
+		return nil, errors.New("invalid dict call")
+	}
+	dict := make(map[string]interface{}, len(values)/2)
+	for i := 0; i < len(values); i += 2 {
+		key, ok := values[i].(string)
+		if !ok {
+			return nil, errors.New("dict keys must be strings")
+		}
+		dict[key] = values[i+1]
+	}
+
+	return dict, nil
+}

utils/variables/variables_test.go

@@ -0,0 +1,41 @@
+package variables
+
+import "testing"
+
+type testDefinedData struct {
+	f1 string
+	f2 bool
+	f3 int
+	f4 func()
+}
+
+type testDefined struct {
+	data   interface{}
+	field  string
+	result bool
+}
+
+var testDefinedCases = []testDefined{
+	{testDefinedData{}, "f1", true},
+	{testDefinedData{}, "f2", true},
+	{testDefinedData{}, "f3", true},
+	{testDefinedData{}, "f4", true},
+	{testDefinedData{}, "f5", false},
+	{[]string{}, "", false},
+	{map[string]int{"oi": 4}, "", false},
+	{"asa", "", false},
+	{"int", "", false},
+}
+
+func TestDefined(t *testing.T) {
+	for _, pair := range testDefinedCases {
+		v := Defined(pair.data, pair.field)
+		if v != pair.result {
+			t.Error(
+				"For", pair.data,
+				"expected", pair.result,
+				"got", v,
+			)
+		}
+	}
+}