chore: updated go mod files

Added Dependancy check for redhat distros

.chglog/CHANGELOG.tpl.md

@@ -0,0 +1,42 @@
+{{ if .Versions -}}
+<a name="unreleased"></a>
+## [Unreleased]
+
+{{ if .Unreleased.CommitGroups -}}
+{{ range .Unreleased.CommitGroups -}}
+### {{ .Title }}
+{{ range .Commits -}}
+- {{ if .Scope }}**{{ .Scope }}:** {{ end }}{{ .Subject }}
+{{ end }}
+{{ end -}}
+{{ end -}}
+{{ end -}}
+
+{{ range .Versions }}
+<a name="{{ .Tag.Name }}"></a>
+## {{ if .Tag.Previous }}[{{ .Tag.Name }}]{{ else }}{{ .Tag.Name }}{{ end }} - {{ datetime "2006-01-02" .Tag.Date }}
+{{ range .CommitGroups -}}
+### {{ .Title }}
+{{ range .Commits -}}
+- {{ if .Scope }}**{{ .Scope }}:** {{ end }}{{ .Subject }}
+{{ end }}
+{{ end -}}
+
+{{- if .NoteGroups -}}
+{{ range .NoteGroups -}}
+### {{ .Title }}
+{{ range .Notes }}
+{{ .Body }}
+{{ end }}
+{{ end -}}
+{{ end -}}
+{{ end -}}
+
+{{- if .Versions }}
+[Unreleased]: {{ .Info.RepositoryURL }}/compare/{{ $latest := index .Versions 0 }}{{ $latest.Tag.Name }}...HEAD
+{{ range .Versions -}}
+{{ if .Tag.Previous -}}
+[{{ .Tag.Name }}]: {{ $.Info.RepositoryURL }}/compare/{{ .Tag.Previous.Name }}...{{ .Tag.Name }}
+{{ end -}}
+{{ end -}}
+{{ end -}}

.chglog/config.yml

@@ -0,0 +1,27 @@
+style: github
+template: CHANGELOG.tpl.md
+info:
+  title: CHANGELOG
+  repository_url: https://github.com/wailsapp/wails
+options:
+  commits:
+    # filters:
+    #   Type:
+    #     - feat
+    #     - fix
+    #     - perf
+    #     - refactor
+  commit_groups:
+    # title_maps:
+    #   feat: Features
+    #   fix: Bug Fixes
+    #   perf: Performance Improvements
+    #   refactor: Code Refactoring
+  header:
+    pattern: "^(\\w*)\\:\\s(.*)$"
+    pattern_maps:
+      - Type
+      - Subject
+  notes:
+    keywords:
+      - BREAKING CHANGE

.vscode/launch.json

@@ -5,14 +5,36 @@
   "version": "0.2.0",
   "configurations": [
     {
-      "name": "Launch",
+      "name": "Wails Init",
       "type": "go",
       "request": "launch",
       "mode": "auto",
       "program": "${workspaceFolder}/cmd/wails/main.go",
       "env": {},
+      "cwd": "/tmp",
       "args": [
-        "setup"
+        "init",
+        "-name",
+        "runtime",
+        "-dir",
+        "runtime",
+        "-output",
+        "runtime",
+        "-template",
+        "vuebasic"
+      ]
+    },
+    {
+      "name": "Wails Update Pre",
+      "type": "go",
+      "request": "launch",
+      "mode": "auto",
+      "program": "${workspaceFolder}/cmd/wails/main.go",
+      "env": {},
+      "cwd": "/tmp",
+      "args": [
+        "update",
+        "-pre"
       ]
     }
   ]

CHANGELOG.md

@@ -0,0 +1,19 @@
+
+<a name="v0.13.0"></a>
+## [v0.13.0] - 2019-05-12
+
+### Feat
+- revamped 'update' system
+- no need for explicit GO111MODULE=on
+
+### Fix
+- documentation typo fixes
+- windows init project
+- windows 10 colour
+- leave windows assets on -p flag
+- show prerequisite errors
+
+### Docs
+- updated contributors
+- added awesomego logo
+- added Redhat distro

CONTRIBUTORS.md

@@ -0,0 +1,12 @@
+# Contributors
+
+Wails is what it is because of the time and effort given by these great people. A huge thank you to each and every one!
+
+* [Dustin Krysak](https://wiki.ubuntu.com/bashfulrobot)
+* [Qais Patankar](https://github.com/qaisjp)
+* [Anthony Lee](https://github.com/alee792)
+* [Adrian Lanzafame](https://github.com/lanzafame)
+* [0xflotus](https://github.com/0xflotus)
+* [Michael D Henderson](https://github.com/mdhender)
+* [fred2104] (https://github.com/fishfishfish2104)
+* [intelwalk] (https://github.com/intelwalk)

README.md

@@ -9,6 +9,7 @@
    <a href="https://www.codefactor.io/repository/github/wailsapp/wails"><img src="https://www.codefactor.io/repository/github/wailsapp/wails/badge" alt="CodeFactor" /></a>
    <a href="https://github.com/wailsapp/wails/issues"><img src="https://img.shields.io/badge/contributions-welcome-brightgreen.svg?style=flat" alt="CodeFactor" /></a>
    <a href="https://houndci.com"><img src="https://img.shields.io/badge/Reviewed_by-Hound-8E64B0.svg"/></a>
+   <a href="https://github.com/sindresorhus/awesome" rel="nofollow"><img src="https://cdn.rawgit.com/sindresorhus/awesome/d7305f38d29fed78fa85652e3a63e154dd8e8829/media/badge.svg" alt="Awesome"></a>-
 </p>
 
 The traditional method of providing web interfaces to Go programs is via a built-in web server. Wails offers a different approach: it provides the ability to wrap both Go code and a web frontend into a single binary. Tools are provided to make this easy for you by handling project creation, compilation and bundling. All you have to do is get creative!
@@ -47,6 +48,14 @@ Make sure you have the xcode command line tools installed. This can be done by r
 
 `sudo apt install pkg-config build-essential libgtk-3-dev libwebkit2gtk-4.0-dev`
 
+#### Arch Linux
+
+`sudo pacman -S webkit2gtk gtk3`
+
+#### Red Hat Based Distros
+
+`sudo yum install webkit2gtk-devel gtk3-devel`
+
 Note: If you have successfully installed these dependencies on a different flavour of Linux, please consider submitting a PR.
 
 ### Windows
@@ -58,7 +67,7 @@ Windows requires gcc and related tooling. The recommended download is from [http
 Installation is as simple as running the following command:
 
 <pre style='color:white'>
-go get -u github.com/wailsapp/wails/cmd/wails
+go get github.com/wailsapp/wails/cmd/wails
 </pre>
 
 ## Next Steps
@@ -86,6 +95,8 @@ Without the following people, this project would never have existed:
   * [Dustin Krysak](https://wiki.ubuntu.com/bashfulrobot) - His support and feedback has been immense. More patience than you can throw a stick at (Not long now Dustin!).
   * [Serge Zaitsev](https://github.com/zserge) - Creator of [Webview](https://github.com/zserge/webview) which Wails uses for the windowing.
 
+And without [these people](CONTRIBUTORS.md), it wouldn't be what it is today.
+
 Special Mentions:
 
   * [Bill Kennedy](https://twitter.com/goinggodotnet) - Go guru, encourager and all-round nice guy, whose infectious energy and inspiration powered me on when I had none left.

cmd/cli.go

@@ -96,6 +96,7 @@ type Command struct {
 	flagCount         int
 	log               *Logger
 	helpFlag          bool
+	hidden            bool
 }
 
 // NewCommand creates a new Command
@@ -106,6 +107,7 @@ func NewCommand(name string, description string, app *Cli, parentCommandPath str
 		SubCommandsMap:   make(map[string]*Command),
 		App:              app,
 		log:              NewLogger(),
+		hidden:           false,
 	}
 
 	// Set up command path
@@ -212,6 +214,9 @@ func (c *Command) PrintHelp() {
 		c.log.White("Available commands:")
 		fmt.Println("")
 		for _, subcommand := range c.SubCommands {
+			if subcommand.isHidden() {
+				continue
+			}
 			spacer := strings.Repeat(" ", 3+c.longestSubcommand-len(subcommand.Name))
 			isDefault := ""
 			if subcommand.isDefaultCommand() {
@@ -237,6 +242,16 @@ func (c *Command) isDefaultCommand() bool {
 	return c.App.defaultCommand == c
 }
 
+// isHidden returns true if the command is a hidden command
+func (c *Command) isHidden() bool {
+	return c.hidden
+}
+
+// Hidden hides the command from the Help system
+func (c *Command) Hidden() {
+	c.hidden = true
+}
+
 // Command - Defines a subcommand
 func (c *Command) Command(name, description string) *Command {
 	result := NewCommand(name, description, c.App, c.CommandPath)

cmd/fs.go

@@ -1,13 +1,19 @@
 package cmd
 
 import (
+	"bytes"
 	"crypto/md5"
+	"encoding/json"
 	"fmt"
 	"io"
 	"io/ioutil"
 	"log"
 	"os"
+	"path"
 	"path/filepath"
+	"runtime"
+
+	"github.com/leaanthony/slicer"
 )
 
 // FSHelper - Wrapper struct for File System utility commands
@@ -104,11 +110,30 @@ func (fs *FSHelper) RemoveFiles(files []string) error {
 	return nil
 }
 
+type Dir struct {
+	localPath string
+	fullPath  string
+}
+
+func (fs *FSHelper) Dir(dir string) (*Dir, error) {
+	fullPath, err := filepath.Abs(dir)
+	return &Dir{fullPath: fullPath}, err
+}
+
+func (fs *FSHelper) LocalDir(dir string) (*Dir, error) {
+	_, filename, _, _ := runtime.Caller(1)
+	fullPath, err := filepath.Abs(filepath.Join(path.Dir(filename), dir))
+	return &Dir{
+		localPath: dir,
+		fullPath:  fullPath,
+	}, err
+}
+
 // GetSubdirs will return a list of FQPs to subdirectories in the given directory
-func (fs *FSHelper) GetSubdirs(dir string) (map[string]string, error) {
+func (d *Dir) GetSubdirs() (map[string]string, error) {
 
 	// Read in the directory information
-	fileInfo, err := ioutil.ReadDir(dir)
+	fileInfo, err := ioutil.ReadDir(d.fullPath)
 	if err != nil {
 		return nil, err
 	}
@@ -120,25 +145,65 @@ func (fs *FSHelper) GetSubdirs(dir string) (map[string]string, error) {
 	// map["directoryName"] = "path/to/directoryName"
 	for _, file := range fileInfo {
 		if file.IsDir() {
-			subdirs[file.Name()] = filepath.Join(dir, file.Name())
+			subdirs[file.Name()] = filepath.Join(d.fullPath, file.Name())
 		}
 	}
 	return subdirs, nil
 }
 
+// GetAllFilenames returns all filename in and below this directory
+func (d *Dir) GetAllFilenames() (*slicer.StringSlicer, error) {
+	result := slicer.String()
+	err := filepath.Walk(d.fullPath, func(dir string, info os.FileInfo, err error) error {
+		if dir == d.fullPath {
+			return nil
+		}
+		if err != nil {
+			return err
+		}
+
+		// Don't copy template metadata
+		result.Add(dir)
+
+		return nil
+	})
+	return result, err
+}
+
 // MkDir creates the given directory.
 // Returns error on failure
 func (fs *FSHelper) MkDir(dir string) error {
 	return os.Mkdir(dir, 0700)
 }
 
+// SaveAsJSON saves the JSON representation of the given data to the given filename
+func (fs *FSHelper) SaveAsJSON(data interface{}, filename string) error {
+
+	var buf bytes.Buffer
+	e := json.NewEncoder(&buf)
+	e.SetEscapeHTML(false)
+	e.SetIndent("", "  ")
+	e.Encode(data)
+
+	err := ioutil.WriteFile(filename, buf.Bytes(), 0755)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
 // LoadAsString will attempt to load the given file and return
 // its contents as a string
 func (fs *FSHelper) LoadAsString(filename string) (string, error) {
-	bytes, err := ioutil.ReadFile(filename)
+	bytes, err := fs.LoadAsBytes(filename)
 	return string(bytes), err
 }
 
+// LoadAsBytes returns the contents of the file as a byte slice
+func (fs *FSHelper) LoadAsBytes(filename string) ([]byte, error) {
+	return ioutil.ReadFile(filename)
+}
+
 // FileMD5 returns the md5sum of the given file
 func (fs *FSHelper) FileMD5(filename string) (string, error) {
 	f, err := os.Open(filename)

cmd/github.go

@@ -0,0 +1,108 @@
+package cmd
+
+import (
+	"encoding/json"
+	"fmt"
+	"io/ioutil"
+	"net/http"
+	"sort"
+)
+
+// GitHubHelper is a utility class for interacting with GitHub
+type GitHubHelper struct {
+}
+
+// NewGitHubHelper returns a new GitHub Helper
+func NewGitHubHelper() *GitHubHelper {
+	return &GitHubHelper{}
+}
+
+// GetVersionTags gets the list of tags on the Wails repo
+// It retuns a list of sorted tags in descending order
+func (g *GitHubHelper) GetVersionTags() ([]*SemanticVersion, error) {
+
+	result := []*SemanticVersion{}
+	var err error
+
+	resp, err := http.Get("https://api.github.com/repos/wailsapp/wails/tags")
+	if err != nil {
+		return result, err
+	}
+	body, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		return result, err
+	}
+
+	data := []map[string]interface{}{}
+	err = json.Unmarshal(body, &data)
+	if err != nil {
+		return result, err
+	}
+
+	// Convert tag data to Version structs
+	for _, tag := range data {
+		version := tag["name"].(string)
+		semver, err := NewSemanticVersion(version)
+		if err != nil {
+			return result, err
+		}
+		result = append(result, semver)
+	}
+
+	// Reverse Sort
+	sort.Sort(sort.Reverse(SemverCollection(result)))
+
+	return result, err
+}
+
+// GetLatestStableRelease gets the latest stable release on GitHub
+func (g *GitHubHelper) GetLatestStableRelease() (result *SemanticVersion, err error) {
+
+	tags, err := g.GetVersionTags()
+	if err != nil {
+		return nil, err
+	}
+
+	for _, tag := range tags {
+		if tag.IsRelease() {
+			return tag, nil
+		}
+	}
+
+	return nil, fmt.Errorf("no release tag found")
+}
+
+// GetLatestPreRelease gets the latest prerelease on GitHub
+func (g *GitHubHelper) GetLatestPreRelease() (result *SemanticVersion, err error) {
+
+	tags, err := g.GetVersionTags()
+	if err != nil {
+		return nil, err
+	}
+
+	for _, tag := range tags {
+		if tag.IsPreRelease() {
+			return tag, nil
+		}
+	}
+
+	return nil, fmt.Errorf("no prerelease tag found")
+}
+
+// IsValidTag returns true if the given string is a valid tag
+func (g *GitHubHelper) IsValidTag(tagVersion string) (bool, error) {
+	if tagVersion[0] == 'v' {
+		tagVersion = tagVersion[1:]
+	}
+	tags, err := g.GetVersionTags()
+	if err != nil {
+		return false, err
+	}
+
+	for _, tag := range tags {
+		if tag.String() == tagVersion {
+			return true, nil
+		}
+	}
+	return false, nil
+}

cmd/helpers.go

@@ -83,6 +83,7 @@ func BuildApplication(binaryName string, forceRebuild bool, buildMode string, pa
 		// Ignore errors
 		buildCommand.Add("-i")
 	}
+
 	buildCommand.Add("build")
 
 	if binaryName != "" {
@@ -127,7 +128,7 @@ func BuildApplication(binaryName string, forceRebuild bool, buildMode string, pa
 	return nil
 }
 
-// PackageApplication will attempt to package the application in a pltform dependent way
+// PackageApplication will attempt to package the application in a platform dependent way
 func PackageApplication(projectOptions *ProjectOptions) error {
 	// Package app
 	message := "Generating .app"

cmd/linux.go

@@ -2,6 +2,9 @@ package cmd
 
 import (
 	"fmt"
+	"io/ioutil"
+	"os"
+	"regexp"
 	"strings"
 )
 
@@ -15,6 +18,8 @@ const (
 	Ubuntu
 	// Arch linux distribution
 	Arch
+	// RedHat linux distribution
+	RedHat
 )
 
 // DistroInfo contains all the information relating to a linux distribution
@@ -51,7 +56,7 @@ func GetLinuxDistroInfo() *DistroInfo {
 					switch value {
 					case "Ubuntu":
 						result.Distribution = Ubuntu
-					case "Arch":
+					case "Arch", "ManjaroLinux":
 						result.Distribution = Arch
 					}
 				case "Description":
@@ -64,7 +69,19 @@ func GetLinuxDistroInfo() *DistroInfo {
 				}
 			}
 		}
-
+		// check if /etc/os-release exists
+	} else if _, err := os.Stat("/etc/os-release"); !os.IsNotExist(err) {
+		// read /etc/os-release
+		osRelease, _ := ioutil.ReadFile("/etc/os-release")
+		// compile a regex to find NAME=distro
+		re := regexp.MustCompile(`^NAME=(.*)\n`)
+		// extract the distro name
+		osName := string(re.FindSubmatch(osRelease)[1])
+		// Check distro name against list of RedHat distros
+		if osName == "Fedora" || osName == "CentOS" {
+			//if it matches set result.Distribution to RedHat
+			result.Distribution = RedHat
+		}
 	}
 	return result
 }
@@ -90,3 +107,14 @@ func PacmanInstalled(packageName string) (bool, error) {
 	_, _, exitCode, _ := pacman.Run("-Qs", packageName)
 	return exitCode == 0, nil
 }
+
+// RpmInstalled uses rpm to see if a package is installed
+func RpmInstalled(packageName string) (bool, error) {
+	program := NewProgramHelper()
+	rpm := program.FindProgram("rpm")
+	if rpm == nil {
+		return false, fmt.Errorf("cannot check dependencies: rpm not found")
+	}
+	_, _, exitCode, _ := rpm.Run("--query", packageName)
+	return exitCode == 0, nil
+}

cmd/package.go

@@ -76,7 +76,7 @@ func (b *PackageHelper) Package(po *ProjectOptions) error {
 		}
 		return b.packageOSX(po)
 	case "windows":
-		return b.PackageWindows(po, true)
+		return b.PackageWindows(po, false)
 	case "linux":
 		return fmt.Errorf("linux is not supported at this time. Please see https://github.com/wailsapp/wails/issues/2")
 	default:
@@ -199,7 +199,7 @@ func (b *PackageHelper) PackageWindows(po *ProjectOptions, cleanUp bool) error {
 
 	// clean up
 	if cleanUp {
-		filesToDelete := []string{tgtIconFile, tgtManifestFile, tgtRCFile}
+		filesToDelete := []string{tgtIconFile, tgtManifestFile, tgtRCFile, sysofile}
 		err := b.fs.RemoveFiles(filesToDelete)
 		if err != nil {
 			return err

cmd/prerequisites.go

@@ -99,7 +99,10 @@ func getRequiredLibrariesLinux() (*Prerequisites, error) {
 		result.Add(newPrerequisite("libwebkit2gtk-4.0-dev", "Please install with `sudo apt install libwebkit2gtk-4.0-dev` and try again"))
 	case Arch:
 		result.Add(newPrerequisite("gtk3", "Please install with `sudo pacman -S gtk3` and try again"))
-		result.Add(newPrerequisite("webkit2gtk", "Please install with `sudo pacman -S webkit2gtk"))
+		result.Add(newPrerequisite("webkit2gtk", "Please install with `sudo pacman -S webkit2gtk` and try again"))
+	case RedHat:
+		result.Add(newPrerequisite("gtk3-devel", "Please install with `sudo yum install gtk3-devel` and try again"))
+		result.Add(newPrerequisite("webkit2gtk3-devel", "Please install with `sudo yum install webkit2gtk3-devel` and try again"))
 	default:
 		result.Add(newPrerequisite("libgtk-3-dev", "Please install with your system package manager and try again"))
 		result.Add(newPrerequisite("libwebkit2gtk-4.0-dev", "Please install with your system package manager and try again"))

cmd/program.go

@@ -92,7 +92,7 @@ func (p *Program) Run(vars ...string) (stdout, stderr string, exitCode int, err
 
 // InstallGoPackage installs the given Go package
 func (p *ProgramHelper) InstallGoPackage(packageName string) error {
-	args := strings.Split("get -u "+packageName, " ")
+	args := strings.Split("get "+packageName, " ")
 	_, stderr, err := p.shell.Run("go", args...)
 	if err != nil {
 		fmt.Println(stderr)
@@ -107,7 +107,7 @@ func (p *ProgramHelper) RunCommand(command string) error {
 }
 
 // RunCommandArray runs the command specified in the array
-func (p *ProgramHelper) RunCommandArray(args []string) error {
+func (p *ProgramHelper) RunCommandArray(args []string, dir ...string) error {
 	program := args[0]
 	// TODO: Run FindProgram here and get the full path to the exe
 	program, err := exec.LookPath(program)
@@ -116,8 +116,13 @@ func (p *ProgramHelper) RunCommandArray(args []string) error {
 		return err
 	}
 	args = args[1:]
+	var stderr string
 	// fmt.Printf("RunCommandArray = %s %+v\n", program, args)
-	_, stderr, err := p.shell.Run(program, args...)
+	if len(dir) > 0 {
+		_, stderr, err = p.shell.RunInDirectory(dir[0], program, args...)
+	} else {
+		_, stderr, err = p.shell.Run(program, args...)
+	}
 	if err != nil {
 		fmt.Println(stderr)
 	}

cmd/project.go

@@ -50,12 +50,6 @@ func NewProjectHelper() *ProjectHelper {
 // GenerateProject generates a new project using the options given
 func (ph *ProjectHelper) GenerateProject(projectOptions *ProjectOptions) error {
 
-	// exists := ph.templates.TemplateExists(projectOptions.Template)
-
-	// if !exists {
-	// 	return fmt.Errorf("template '%s' is invalid", projectOptions.Template)
-	// }
-
 	// Calculate project path
 	projectPath, err := filepath.Abs(projectOptions.OutputDirectory)
 	if err != nil {
@@ -173,19 +167,43 @@ func (po *ProjectOptions) PromptForInputs() error {
 	// Process Templates
 	templateList := slicer.Interface()
 	options := slicer.String()
-	for _, templateDetails := range po.templates.TemplateList.details {
+	templateDetails, err := po.templates.GetTemplateDetails()
-		templateList.Add(templateDetails)
+	if err != nil {
-		options.Add(fmt.Sprintf("%s - %s", templateDetails.Metadata.Name, templateDetails.Metadata.ShortDescription))
+		return err
 	}
 
-	templateIndex := 0
+	if po.Template != "" {
+		// Check template is valid if given
+		if templateDetails[po.Template] == nil {
+			keys := make([]string, 0, len(templateDetails))
+			for k := range templateDetails {
+				keys = append(keys, k)
+			}
+			return fmt.Errorf("invalid template name '%s'. Valid options: %s", po.Template, strings.Join(keys, ", "))
+		}
+		po.selectedTemplate = templateDetails[po.Template]
+	} else {
 
-	if len(options.AsSlice()) > 1 {
+		for _, templateDetail := range templateDetails {
-		templateIndex = PromptSelection("Please select a template", options.AsSlice(), 0)
+			templateList.Add(templateDetail)
+			options.Add(fmt.Sprintf("%s - %s", templateDetail.Metadata.Name, templateDetail.Metadata.ShortDescription))
+		}
+
+		templateIndex := 0
+
+		if len(options.AsSlice()) > 1 {
+			templateIndex = PromptSelection("Please select a template", options.AsSlice(), 0)
+		}
+
+		if len(templateList.AsSlice()) == 0 {
+			return fmt.Errorf("aborting: no templates found")
+		}
+
+		// After selection do this....
+		po.selectedTemplate = templateList.AsSlice()[templateIndex].(*TemplateDetails)
 	}
 
-	// After selection do this....
+	fmt.Println("Template: " + po.selectedTemplate.Metadata.Name)
-	po.selectedTemplate = templateList.AsSlice()[templateIndex].(*TemplateDetails)
 
 	// Setup NPM Project name
 	po.NPMProjectName = strings.ToLower(strings.Replace(po.Name, " ", "_", -1))
@@ -266,7 +284,6 @@ func processProjectName(po *ProjectOptions) {
 		po.Name = Prompt("The name of the project", "My Project")
 	}
 	fmt.Println("Project Name: " + po.Name)
-
 }
 
 func processBinaryName(po *ProjectOptions) {

cmd/semver.go

@@ -0,0 +1,98 @@
+package cmd
+
+import (
+	"fmt"
+
+	"github.com/masterminds/semver"
+)
+
+// SemanticVersion is a struct containing a semantic version
+type SemanticVersion struct {
+	Version *semver.Version
+}
+
+// NewSemanticVersion creates a new SemanticVersion object with the given version string
+func NewSemanticVersion(version string) (*SemanticVersion, error) {
+	semverVersion, err := semver.NewVersion(version)
+	if err != nil {
+		return nil, err
+	}
+	return &SemanticVersion{
+		Version: semverVersion,
+	}, nil
+}
+
+// IsRelease returns true if it's a release version
+func (s *SemanticVersion) IsRelease() bool {
+	return len(s.Version.Prerelease()) == 0 && len(s.Version.Metadata()) == 0
+}
+
+// IsPreRelease returns true if it's a prerelease version
+func (s *SemanticVersion) IsPreRelease() bool {
+	return len(s.Version.Prerelease()) > 0
+}
+
+func (s *SemanticVersion) String() string {
+	return s.Version.String()
+}
+
+// IsGreaterThan returns true if this version is greater than the given version
+func (s *SemanticVersion) IsGreaterThan(version *SemanticVersion) (bool, error) {
+	// Set up new constraint
+	constraint, err := semver.NewConstraint("> " + version.Version.String())
+	if err != nil {
+		return false, err
+	}
+
+	// Check if the desired one is greater than the requested on
+	success, msgs := constraint.Validate(s.Version)
+	if !success {
+		return false, msgs[0]
+	}
+	return true, nil
+}
+
+// IsGreaterThanOrEqual returns true if this version is greater than or equal the given version
+func (s *SemanticVersion) IsGreaterThanOrEqual(version *SemanticVersion) (bool, error) {
+	// Set up new constraint
+	constraint, err := semver.NewConstraint(">= " + version.Version.String())
+	if err != nil {
+		return false, err
+	}
+
+	// Check if the desired one is greater than the requested on
+	success, msgs := constraint.Validate(s.Version)
+	if !success {
+		return false, msgs[0]
+	}
+	return true, nil
+}
+
+// MainVersion returns the main version of any version+prerelease+metadata
+// EG: MainVersion("1.2.3-pre") => "1.2.3"
+func (s *SemanticVersion) MainVersion() *SemanticVersion {
+	mainVersion := fmt.Sprintf("%d.%d.%d", s.Version.Major(), s.Version.Minor(), s.Version.Patch())
+	result, _ := NewSemanticVersion(mainVersion)
+	return result
+}
+
+// SemverCollection is a collection of SemanticVersion objects
+type SemverCollection []*SemanticVersion
+
+// Len returns the length of a collection. The number of Version instances
+// on the slice.
+func (c SemverCollection) Len() int {
+	return len(c)
+}
+
+// Less is needed for the sort interface to compare two Version objects on the
+// slice. If checks if one is less than the other.
+func (c SemverCollection) Less(i, j int) bool {
+	return c[i].Version.LessThan(c[j].Version)
+}
+
+// Swap is needed for the sort interface to replace the Version objects
+// at two different positions in the slice.
+func (c SemverCollection) Swap(i, j int) {
+	c[i], c[j] = c[j], c[i]
+}

cmd/shell.go

@@ -2,6 +2,7 @@ package cmd
 
 import (
 	"bytes"
+	"os"
 	"os/exec"
 )
 
@@ -17,6 +18,21 @@ func NewShellHelper() *ShellHelper {
 // Run the given command
 func (sh *ShellHelper) Run(command string, vars ...string) (stdout, stderr string, err error) {
 	cmd := exec.Command(command, vars...)
+	cmd.Env = append(os.Environ(), "GO111MODULE=on")
+	var stdo, stde bytes.Buffer
+	cmd.Stdout = &stdo
+	cmd.Stderr = &stde
+	err = cmd.Run()
+	stdout = string(stdo.Bytes())
+	stderr = string(stde.Bytes())
+	return
+}
+
+// RunInDirectory runs the given command in the given directory
+func (sh *ShellHelper) RunInDirectory(dir string, command string, vars ...string) (stdout, stderr string, err error) {
+	cmd := exec.Command(command, vars...)
+	cmd.Dir = dir
+	cmd.Env = append(os.Environ(), "GO111MODULE=on")
 	var stdo, stde bytes.Buffer
 	cmd.Stdout = &stdo
 	cmd.Stderr = &stde

cmd/system.go

@@ -68,6 +68,17 @@ func (s *SystemHelper) ConfigFileIsValid() bool {
 	return err == nil
 }
 
+// GetAuthor returns a formatted string of the user's name and email
+func (s *SystemHelper) GetAuthor() (string, error) {
+	var config *SystemConfig
+	config, err := s.LoadConfig()
+	if err != nil {
+		return "", err
+	}
+
+	return fmt.Sprintf("%s <%s>", config.Name, config.Email), nil
+}
+
 // BackupConfig attempts to backup the system config file
 func (s *SystemHelper) BackupConfig() (string, error) {
 	now := strconv.FormatInt(time.Now().UTC().UnixNano(), 10)
@@ -245,7 +256,7 @@ func CheckDependencies(logger *Logger) (bool, error) {
 		bin := programHelper.FindProgram(program.Name)
 		if bin == nil {
 			errors = true
-			logger.Red("Program '%s' not found. %s", program.Name, program.Help)
+			logger.Error("Program '%s' not found. %s", program.Name, program.Help)
 		} else {
 			logger.Green("Program '%s' found: %s", program.Name, bin.Path)
 		}
@@ -268,7 +279,7 @@ func CheckDependencies(logger *Logger) (bool, error) {
 				}
 				if !installed {
 					errors = true
-					logger.Red("Library '%s' not found. %s", library.Name, library.Help)
+					logger.Error("Library '%s' not found. %s", library.Name, library.Help)
 				} else {
 					logger.Green("Library '%s' installed.", library.Name)
 				}
@@ -279,7 +290,19 @@ func CheckDependencies(logger *Logger) (bool, error) {
 				}
 				if !installed {
 					errors = true
-					logger.Red("Library '%s' not found. %s", library.Name, library.Help)
+					logger.Error("Library '%s' not found. %s", library.Name, library.Help)
+				} else {
+					logger.Green("Library '%s' installed.", library.Name)
+				}
+			case RedHat:
+
+				installed, err := RpmInstalled(library.Name)
+				if err != nil {
+					return false, err
+				}
+				if !installed {
+					errors = true
+					logger.Error("Library '%s' not found. %s", library.Name, library.Help)
 				} else {
 					logger.Green("Library '%s' installed.", library.Name)
 				}

cmd/templates.go

@@ -3,20 +3,21 @@ package cmd
 import (
 	"bytes"
 	"encoding/json"
+	"fmt"
+	"io/ioutil"
 	"log"
 	"path/filepath"
-	"regexp"
 	"strings"
 	"text/template"
 
-	mewn "github.com/leaanthony/mewn"
+	"github.com/kennygrant/sanitize"
-	mewnlib "github.com/leaanthony/mewn/lib"
 	"github.com/leaanthony/slicer"
 )
 
 // TemplateMetadata holds all the metadata for a Wails template
 type TemplateMetadata struct {
 	Name             string `json:"name"`
+	Version          string `json:"version"`
 	ShortDescription string `json:"shortdescription"`
 	Description      string `json:"description"`
 	Install          string `json:"install"`
@@ -26,91 +27,146 @@ type TemplateMetadata struct {
 	FrontendDir      string `json:"frontenddir"`
 	Serve            string `json:"serve"`
 	Bridge           string `json:"bridge"`
+	WailsDir         string `json:"wailsdir"`
 }
 
 // TemplateDetails holds information about a specific template
 type TemplateDetails struct {
-	BasePath string
+	Name     string
 	Path     string
 	Metadata *TemplateMetadata
-}
+	fs       *FSHelper
-
-// TemplateList is a list of available templates
-type TemplateList struct {
-	details map[string]*TemplateDetails
-}
-
-// NewTemplateList creates a new TemplateList object
-func NewTemplateList(filenames *mewnlib.FileGroup) *TemplateList {
-	// Iterate each template and store information
-
-	result := &TemplateList{details: make(map[string]*TemplateDetails)}
-
-	entries := slicer.String()
-	entries.AddSlice(filenames.Entries())
-
-	// Find all template.json files
-	metadataFiles := entries.Filter(func(filename string) bool {
-		match, _ := regexp.MatchString("(.)+template.json$", filename)
-		return match
-	})
-
-	// Load each metadata file
-	metadataFiles.Each(func(filename string) {
-		fileData := filenames.Bytes(filename)
-		var metadata TemplateMetadata
-		err := json.Unmarshal(fileData, &metadata)
-		if err != nil {
-			log.Fatalf("corrupt metadata for template: %s", filename)
-		}
-		path := strings.Split(filename, string(filepath.Separator))[0]
-		thisTemplate := &TemplateDetails{Path: path, Metadata: &metadata}
-		result.details[filename] = thisTemplate
-	})
-
-	return result
-}
-
-// Template holds details about a Wails template
-type Template struct {
-	Name        string
-	Path        string
-	Description string
 }
 
 // TemplateHelper is a utility object to help with processing templates
 type TemplateHelper struct {
-	TemplateList *TemplateList
+	templateDir      *Dir
-	Files        *mewnlib.FileGroup
+	fs               *FSHelper
+	metadataFilename string
 }
 
 // NewTemplateHelper creates a new template helper
 func NewTemplateHelper() *TemplateHelper {
-	files := mewn.Group("./templates")
+
+	templateDir, err := fs.LocalDir("./templates")
+	if err != nil {
+		log.Fatal("Unable to find the template directory. Please reinstall Wails.")
+	}
 
 	return &TemplateHelper{
-		TemplateList: NewTemplateList(files),
+		templateDir:      templateDir,
-		Files:        files,
+		metadataFilename: "template.json",
 	}
 }
 
+// IsValidTemplate returns true if the given tempalte name resides on disk
+func (t *TemplateHelper) IsValidTemplate(templateName string) bool {
+	pathToTemplate := filepath.Join(t.templateDir.fullPath, templateName)
+	return t.fs.DirExists(pathToTemplate)
+}
+
+// SanitizeFilename sanitizes the given string to make a valid filename
+func (t *TemplateHelper) SanitizeFilename(name string) string {
+	return sanitize.Name(name)
+}
+
+// CreateNewTemplate creates a new template based on the given directory name and string
+func (t *TemplateHelper) CreateNewTemplate(dirname string, details *TemplateMetadata) (string, error) {
+
+	// Check if this template has already been created
+	if t.IsValidTemplate(dirname) {
+		return "", fmt.Errorf("cannot create template in directory '%s' - already exists", dirname)
+	}
+
+	targetDir := filepath.Join(t.templateDir.fullPath, dirname)
+	err := t.fs.MkDir(targetDir)
+	if err != nil {
+		return "", err
+	}
+	targetMetadata := filepath.Join(targetDir, t.metadataFilename)
+	err = t.fs.SaveAsJSON(details, targetMetadata)
+
+	return targetDir, err
+}
+
+// LoadMetadata loads the template's 'metadata.json' file
+func (t *TemplateHelper) LoadMetadata(dir string) (*TemplateMetadata, error) {
+	templateFile := filepath.Join(dir, t.metadataFilename)
+	result := &TemplateMetadata{}
+	if !t.fs.FileExists(templateFile) {
+		return nil, nil
+	}
+	rawJSON, err := ioutil.ReadFile(templateFile)
+	if err != nil {
+		return nil, err
+	}
+	err = json.Unmarshal(rawJSON, &result)
+	return result, err
+}
+
+// GetTemplateDetails returns a map of Template structs containing details
+// of the found templates
+func (t *TemplateHelper) GetTemplateDetails() (map[string]*TemplateDetails, error) {
+
+	// Get the subdirectory details
+	templateDirs, err := t.templateDir.GetSubdirs()
+	if err != nil {
+		return nil, err
+	}
+
+	result := make(map[string]*TemplateDetails)
+
+	for name, dir := range templateDirs {
+		result[name] = &TemplateDetails{
+			Path: dir,
+		}
+		_ = &TemplateMetadata{}
+		metadata, err := t.LoadMetadata(dir)
+		if err != nil {
+			return nil, err
+		}
+		result[name].Metadata = metadata
+		if metadata.Name != "" {
+			result[name].Name = metadata.Name
+		} else {
+			// Ignore bad templates?
+			result[name] = nil
+		}
+	}
+
+	return result, nil
+}
+
+// GetTemplateFilenames returns all the filenames of the given template
+func (t *TemplateHelper) GetTemplateFilenames(template *TemplateDetails) (*slicer.StringSlicer, error) {
+
+	// Get the subdirectory details
+	templateDir, err := t.fs.Dir(template.Path)
+	if err != nil {
+		return nil, err
+	}
+	return templateDir.GetAllFilenames()
+}
+
 // InstallTemplate installs the template given in the project options to the
 // project path given
 func (t *TemplateHelper) InstallTemplate(projectPath string, projectOptions *ProjectOptions) error {
 
 	// Get template files
+	templateFilenames, err := t.GetTemplateFilenames(projectOptions.selectedTemplate)
+	if err != nil {
+		return err
+	}
+
 	templatePath := projectOptions.selectedTemplate.Path
 
-	templateFilenames := slicer.String()
+	templateJSONFilename := filepath.Join(templatePath, t.metadataFilename)
-	templateFilenames.AddSlice(projectOptions.templates.Files.Entries())
-
-	templateJSONFilename := filepath.Join(templatePath, "template.json")
 
 	templateFiles := templateFilenames.Filter(func(filename string) bool {
+		filename = filepath.FromSlash(filename)
 		return strings.HasPrefix(filename, templatePath) && filename != templateJSONFilename
 	})
 
-	var err error
 	templateFiles.Each(func(templateFile string) {
 
 		// Setup filenames
@@ -119,11 +175,14 @@ func (t *TemplateHelper) InstallTemplate(projectPath string, projectOptions *Pro
 		if err != nil {
 			return
 		}
-		filedata := projectOptions.templates.Files.Bytes(templateFile)
+		filedata, err := t.fs.LoadAsBytes(templateFile)
+		if err != nil {
+			return
+		}
 
 		// If file is a template, process it
 		if strings.HasSuffix(templateFile, ".template") {
-			templateData := projectOptions.templates.Files.String(templateFile)
+			templateData := string(filedata)
 			tmpl := template.New(templateFile)
 			tmpl.Parse(templateData)
 			var tpl bytes.Buffer

cmd/version.go

@@ -1,4 +1,4 @@
 package cmd
 
 // Version - Wails version
-const Version = "v0.11.9"
+const Version = "v0.14.4-pre"

cmd/wails/10.1_dev_newtemplate.go

@@ -0,0 +1,121 @@
+// +build dev
+
+package main
+
+import (
+	"fmt"
+	"time"
+
+	"github.com/wailsapp/wails/cmd"
+	"gopkg.in/AlecAivazis/survey.v1"
+)
+
+var templateHelper = cmd.NewTemplateHelper()
+
+var qs = []*survey.Question{
+	{
+		Name:     "Name",
+		Prompt:   &survey.Input{Message: "Please enter the name of your template (eg: React/Webpack Basic):"},
+		Validate: survey.Required,
+	},
+	{
+		Name:     "ShortDescription",
+		Prompt:   &survey.Input{Message: "Please enter a short description for the template (eg: React with Webpack 4):"},
+		Validate: survey.Required,
+	},
+	{
+		Name:     "Description",
+		Prompt:   &survey.Input{Message: "Please enter a long description:"},
+		Validate: survey.Required,
+	},
+	{
+		Name:     "FrontendDir",
+		Prompt:   &survey.Input{Message: "Please enter the name of the directory the frontend code resides (eg: frontend):"},
+		Validate: survey.Required,
+	},
+	{
+		Name:     "Install",
+		Prompt:   &survey.Input{Message: "Please enter the install command (eg: npm install):"},
+		Validate: survey.Required,
+	},
+	{
+		Name:     "Build",
+		Prompt:   &survey.Input{Message: "Please enter the build command (eg: npm run build):"},
+		Validate: survey.Required,
+	},
+	{
+		Name:     "Serve",
+		Prompt:   &survey.Input{Message: "Please enter the serve command (eg: npm run serve):"},
+		Validate: survey.Required,
+	},
+	{
+		Name:     "Bridge",
+		Prompt:   &survey.Input{Message: "Please enter the name of the directory to copy the wails bridge runtime (eg: src):"},
+		Validate: survey.Required,
+	},
+}
+
+func newTemplate(devCommand *cmd.Command) {
+
+	commandDescription := `This command scaffolds everything needed to develop a new template.`
+	newTemplate := devCommand.Command("newtemplate", "Generate a new template").
+		LongDescription(commandDescription)
+
+	newTemplate.Action(func() error {
+		logger.PrintSmallBanner("Generating new project template")
+		fmt.Println()
+
+		var answers cmd.TemplateMetadata
+
+		// perform the questions
+		err := survey.Ask(qs, &answers)
+		if err != nil {
+			fmt.Println(err.Error())
+			return err
+		}
+
+		dirname := templateHelper.SanitizeFilename(answers.Name)
+		prompt := []*survey.Question{{
+			Prompt: &survey.Input{
+				Message: "Please enter a directory name for the template:",
+				Default: dirname,
+			},
+			Validate: func(val interface{}) error {
+				err := survey.Required(val)
+				if err != nil {
+					return err
+				}
+				if templateHelper.IsValidTemplate(val.(string)) {
+					return fmt.Errorf("template directory already exists")
+				}
+				if templateHelper.SanitizeFilename(val.(string)) != val.(string) {
+					return fmt.Errorf("invalid directory name '%s'", val.(string))
+				}
+				return nil
+			},
+		}}
+		err = survey.Ask(prompt, &dirname)
+		if err != nil {
+			return err
+		}
+
+		answers.Version = "1.0.0"
+		answers.Created = time.Now().String()
+
+		// Get Author info from system info
+		system := cmd.NewSystemHelper()
+		author, err := system.GetAuthor()
+		if err == nil {
+			answers.Author = author
+		}
+
+		templateDirectory, err := templateHelper.CreateNewTemplate(dirname, &answers)
+		if err != nil {
+			return err
+		}
+
+		logger.Green("Created new template '%s' in directory '%s'", answers.Name, templateDirectory)
+
+		return nil
+	})
+}

cmd/wails/10_dev.go

@@ -0,0 +1,18 @@
+// +build dev
+
+package main
+
+func init() {
+
+	commandDescription := `This command provides access to developer tooling.`
+	devCommand := app.Command("dev", "A selection of developer tools").
+		LongDescription(commandDescription)
+
+	// Add subcommands
+	newTemplate(devCommand)
+
+	devCommand.Action(func() error {
+		devCommand.PrintHelp()
+		return nil
+	})
+}

cmd/wails/2_init.go

@@ -17,7 +17,7 @@ Any flags that are required and not given will be prompted for.`
 		LongDescription(commandDescription).
 		BoolFlag("f", "Use defaults", &projectOptions.UseDefaults).
 		StringFlag("dir", "Directory to create project in", &projectOptions.OutputDirectory).
-		// StringFlag("template", "Template name", &projectOptions.Template).
+		StringFlag("template", "Template name", &projectOptions.Template).
 		StringFlag("name", "Project name", &projectOptions.Name).
 		StringFlag("description", "Project description", &projectOptions.Description).
 		StringFlag("output", "Output binary name", &projectOptions.BinaryName)

cmd/wails/6_serve.go

@@ -14,7 +14,7 @@ func init() {
 	buildSpinner.SetSpinSpeed(50)
 
 	commandDescription := `This command builds then serves your application in bridge mode. Useful for developing your app in a browser.`
-	initCmd := app.Command("serve", "Run your Wails project in bridge mode.").
+	initCmd := app.Command("serve", "Run your Wails project in bridge mode").
 		LongDescription(commandDescription).
 		BoolFlag("f", "Force rebuild of application components", &forceRebuild)
 

cmd/wails/8_update.go

@@ -1,24 +1,28 @@
 package main
 
 import (
-	"encoding/json"
 	"fmt"
-	"io/ioutil"
+	"log"
-	"net/http"
 
 	"github.com/leaanthony/spinner"
+	"github.com/mitchellh/go-homedir"
 	"github.com/wailsapp/wails/cmd"
 )
 
 func init() {
 
+	var prereleaseRequired bool
+	var specificVersion string
+
 	// var forceRebuild = false
 	checkSpinner := spinner.NewSpinner()
 	checkSpinner.SetSpinSpeed(50)
 
-	commandDescription := `This command checks if there are updates to Wails.`
+	commandDescription := `This command allows you to update your version of Wails.`
-	updateCmd := app.Command("update", "Check for Updates.").
+	updateCmd := app.Command("update", "Update to newer [pre]releases or specific versions").
-		LongDescription(commandDescription)
+		LongDescription(commandDescription).
+		BoolFlag("pre", "Update to latest Prerelease", &prereleaseRequired).
+		StringFlag("version", "Install a specific version (Overrides other flags)", &specificVersion)
 
 	updateCmd.Action(func() error {
 
@@ -28,42 +32,133 @@ func init() {
 
 		// Get versions
 		checkSpinner.Start(message)
-		resp, err := http.Get("https://api.github.com/repos/wailsapp/wails/tags")
+
+		github := cmd.NewGitHubHelper()
+		var desiredVersion *cmd.SemanticVersion
+		var err error
+		var valid bool
+
+		if len(specificVersion) > 0 {
+			// Check if this is a valid version
+			valid, err = github.IsValidTag(specificVersion)
+			if err == nil {
+				if !valid {
+					err = fmt.Errorf("version '%s' is invalid", specificVersion)
+				} else {
+					desiredVersion, err = cmd.NewSemanticVersion(specificVersion)
+				}
+			}
+		} else {
+			if prereleaseRequired {
+				desiredVersion, err = github.GetLatestPreRelease()
+			} else {
+				desiredVersion, err = github.GetLatestStableRelease()
+			}
+		}
 		if err != nil {
 			checkSpinner.Error(err.Error())
 			return err
 		}
 		checkSpinner.Success()
-		body, err := ioutil.ReadAll(resp.Body)
-		if err != nil {
-			checkSpinner.Error(err.Error())
-			return err
-		}
-
-		data := []map[string]interface{}{}
-		err = json.Unmarshal(body, &data)
-		if err != nil {
-			return err
-		}
-
-		latestVersion := data[0]["name"].(string)
 		fmt.Println()
-		fmt.Println("Current Version: " + cmd.Version)
+
-		fmt.Println(" Latest Version: " + latestVersion)
+		fmt.Println("    Current Version : " + cmd.Version)
-		if latestVersion != cmd.Version {
+
-			updateSpinner := spinner.NewSpinner()
+		if len(specificVersion) > 0 {
-			updateSpinner.SetSpinSpeed(40)
+			fmt.Printf("    Desired Version : v%s\n", desiredVersion)
-			updateSpinner.Start("Updating to  : " + latestVersion)
-			err = cmd.NewProgramHelper().RunCommandArray([]string{"go", "get", "-u", "github.com/wailsapp/wails/cmd/wails"})
-			if err != nil {
-				updateSpinner.Error(err.Error())
-				return err
-			}
-			updateSpinner.Success()
-			logger.Yellow("Wails updated to " + latestVersion)
 		} else {
-			logger.Yellow("Looks like you're up to date!")
+			if prereleaseRequired {
+				fmt.Printf("  Latest Prerelease : v%s\n", desiredVersion)
+			} else {
+				fmt.Printf("     Latest Release : v%s\n", desiredVersion)
+			}
 		}
-		return nil
+
+		return updateToVersion(desiredVersion, len(specificVersion) > 0)
 	})
 }
+
+func updateToVersion(targetVersion *cmd.SemanticVersion, force bool) error {
+
+	var targetVersionString = "v" + targetVersion.String()
+
+	// Early exit
+	if targetVersionString == cmd.Version {
+		logger.Green("Looks like you're up to date!")
+		return nil
+	}
+
+	var desiredVersion string
+
+	if !force {
+
+		compareVersion := cmd.Version
+
+		currentVersion, err := cmd.NewSemanticVersion(compareVersion)
+		if err != nil {
+			return err
+		}
+
+		var success bool
+
+		// Release -> Pre-Release = Massage current version to prerelease format
+		if targetVersion.IsPreRelease() && currentVersion.IsRelease() {
+			testVersion, err := cmd.NewSemanticVersion(compareVersion + "-0")
+			if err != nil {
+				return err
+			}
+			success, _ = targetVersion.IsGreaterThan(testVersion)
+		}
+		// Pre-Release -> Release = Massage target version to prerelease format
+		if targetVersion.IsRelease() && currentVersion.IsPreRelease() {
+			// We are ok with greater than or equal
+			mainversion := currentVersion.MainVersion()
+			targetVersion, err = cmd.NewSemanticVersion(targetVersion.String())
+			if err != nil {
+				return err
+			}
+			success, _ = targetVersion.IsGreaterThanOrEqual(mainversion)
+		}
+
+		// Release -> Release = Standard check
+		if (targetVersion.IsRelease() && currentVersion.IsRelease()) ||
+			(targetVersion.IsPreRelease() && currentVersion.IsPreRelease()) {
+
+			success, _ = targetVersion.IsGreaterThan(currentVersion)
+		}
+
+		// Compare
+		if !success {
+			logger.Red("The requested version is lower than the current version.")
+			logger.Red("If this is what you really want to do, use `wails update -version %s`", targetVersionString)
+			return nil
+		}
+
+		desiredVersion = "v" + targetVersion.String()
+
+	} else {
+		desiredVersion = "v" + targetVersion.String()
+	}
+
+	fmt.Println()
+	updateSpinner := spinner.NewSpinner()
+	updateSpinner.SetSpinSpeed(40)
+	updateSpinner.Start("Installing Wails " + desiredVersion)
+
+	// Run command in non module directory
+	homeDir, err := homedir.Dir()
+	if err != nil {
+		log.Fatal("Cannot find home directory! Please file a bug report!")
+	}
+
+	err = cmd.NewProgramHelper().RunCommandArray([]string{"go", "get", "github.com/wailsapp/wails/cmd/wails@" + desiredVersion}, homeDir)
+	if err != nil {
+		updateSpinner.Error(err.Error())
+		return err
+	}
+	updateSpinner.Success()
+	fmt.Println()
+	logger.Green("Wails updated to " + desiredVersion)
+
+	return nil
+}

cmd/wails/9_issue.go

@@ -18,7 +18,7 @@ func init() {
 
 	commandDescription := `Generates an issue in Github using the given title, description and system report.`
 
-	initCommand := app.Command("issue", "Generates an issue in Github.").
+	initCommand := app.Command("issue", "Generates an issue in Github").
 		LongDescription(commandDescription)
 
 	initCommand.Action(func() error {

cmd/windows.go

@@ -0,0 +1,19 @@
+// +build windows
+
+package cmd
+
+import (
+	"os"
+
+	"golang.org/x/sys/windows"
+)
+
+// Credit: https://stackoverflow.com/a/52579002
+
+func init() {
+	stdout := windows.Handle(os.Stdout.Fd())
+	var originalMode uint32
+
+	_ = windows.GetConsoleMode(stdout, &originalMode)
+	_ = windows.SetConsoleMode(stdout, originalMode|windows.ENABLE_VIRTUAL_TERMINAL_PROCESSING)
+}

go.mod

@@ -1,6 +1,7 @@
 module github.com/wailsapp/wails
 
 require (
+	github.com/Masterminds/semver v1.4.2 // indirect
 	github.com/dchest/cssmin v0.0.0-20151210170030-fb8d9b44afdc // indirect
 	github.com/dchest/htmlmin v0.0.0-20150526090704-e254725e81ac
 	github.com/dchest/jsmin v0.0.0-20160823214000-faeced883947 // indirect
@@ -8,20 +9,23 @@ require (
 	github.com/go-playground/colors v1.2.0
 	github.com/gorilla/websocket v1.4.0
 	github.com/jackmordaunt/icns v1.0.0
+	github.com/kennygrant/sanitize v1.2.4
 	github.com/konsorten/go-windows-terminal-sequences v1.0.2 // indirect
-	github.com/leaanthony/mewn v0.10.4
+	github.com/leaanthony/mewn v0.10.6
 	github.com/leaanthony/slicer v1.3.1
 	github.com/leaanthony/spinner v0.5.0
+	github.com/masterminds/semver v1.4.2
 	github.com/mattn/go-colorable v0.1.1 // indirect
-	github.com/mattn/go-isatty v0.0.6 // indirect
+	github.com/mattn/go-isatty v0.0.7 // indirect
 	github.com/mitchellh/go-homedir v1.1.0
 	github.com/nfnt/resize v0.0.0-20180221191011-83c6a9932646 // indirect
 	github.com/pkg/browser v0.0.0-20180916011732-0a3d74bf9ce4
 	github.com/pkg/errors v0.8.1 // indirect
-	github.com/sirupsen/logrus v1.3.0
+	github.com/sirupsen/logrus v1.4.1
 	github.com/stretchr/testify v1.3.0 // indirect
 	github.com/wailsapp/webview v0.2.7
-	golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2 // indirect
+	golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529 // indirect
-	golang.org/x/net v0.0.0-20190310014029-b774fd8d5c0f // indirect
+	golang.org/x/net v0.0.0-20190509222800-a4d6f7feada5 // indirect
-	golang.org/x/sys v0.0.0-20190310054646-10058d7d4faa // indirect
+	golang.org/x/sys v0.0.0-20190509141414-a5b02f93d862
+	gopkg.in/AlecAivazis/survey.v1 v1.8.4
 )

go.sum

@@ -1,3 +1,7 @@
+github.com/Masterminds/semver v1.4.2 h1:WBLTQ37jOCzSLtXNdoo8bNM8876KhNqOKvrlGITgsTc=
+github.com/Masterminds/semver v1.4.2/go.mod h1:MB6lktGJrhw8PrUyiEoblNEGEQ+RzHPF078ddwwvV3Y=
+github.com/Netflix/go-expect v0.0.0-20180615182759-c93bf25de8e8 h1:xzYJEypr/85nBpB11F9br+3HUrpgb+fcm5iADzXXYEw=
+github.com/Netflix/go-expect v0.0.0-20180615182759-c93bf25de8e8/go.mod h1:oX5x61PbNXchhh0oikYAH+4Pcfw5LKv21+Jnpr6r6Pc=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
@@ -15,14 +19,22 @@ github.com/google/go-github v17.0.0+incompatible/go.mod h1:zLgOLi98H3fifZn+44m+u
 github.com/google/go-querystring v1.0.0/go.mod h1:odCYkC5MyYFN7vkCjXpyrEuKhc/BUO6wN/zVPAxq5ck=
 github.com/gorilla/websocket v1.4.0 h1:WDFjx/TMzVgy9VdMMQi2K2Emtwi2QcUQsztZ/zLaH/Q=
 github.com/gorilla/websocket v1.4.0/go.mod h1:E7qHFY5m1UJ88s3WnNqhKjPHQ0heANvMoAMk2YaljkQ=
+github.com/hinshun/vt10x v0.0.0-20180616224451-1954e6464174 h1:WlZsjVhE8Af9IcZDGgJGQpNflI3+MJSBhsgT5PCtzBQ=
+github.com/hinshun/vt10x v0.0.0-20180616224451-1954e6464174/go.mod h1:DqJ97dSdRW1W22yXSB90986pcOyQ7r45iio1KN2ez1A=
 github.com/jackmordaunt/icns v1.0.0 h1:RYSxplerf/l/DUd09AHtITwckkv/mqjVv4DjYdPmAMQ=
 github.com/jackmordaunt/icns v1.0.0/go.mod h1:7TTQVEuGzVVfOPPlLNHJIkzA6CoV7aH1Dv9dW351oOo=
+github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51 h1:Z9n2FFNUXsshfwJMBgNA0RU6/i7WVaAegv3PtuIHPMs=
+github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51/go.mod h1:CzGEWj7cYgsdH8dAjBGEr58BoE7ScuLd+fwFZ44+/x8=
+github.com/kennygrant/sanitize v1.2.4 h1:gN25/otpP5vAsO2djbMhF/LQX6R7+O1TB4yv8NzpJ3o=
+github.com/kennygrant/sanitize v1.2.4/go.mod h1:LGsjYYtgxbetdg5owWB2mpgUL6e2nfw2eObZ0u0qvak=
 github.com/konsorten/go-windows-terminal-sequences v1.0.1 h1:mweAR1A6xJ3oS2pRaGiHgQ4OO8tzTaLawm8vnODuwDk=
 github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
 github.com/konsorten/go-windows-terminal-sequences v1.0.2 h1:DB17ag19krx9CFsz4o3enTrPXyIXCl+2iCXH/aMAp9s=
 github.com/konsorten/go-windows-terminal-sequences v1.0.2/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
-github.com/leaanthony/mewn v0.10.4 h1:b16/E0r6CuXN8WYuDJIgwRocLQlmMjfBsooEJr6FdqY=
+github.com/kr/pty v1.1.1 h1:VkoXIwSboBpnk99O/KFauAEILuNHv5DVFKZMBN/gUgw=
-github.com/leaanthony/mewn v0.10.4/go.mod h1:i3ygCWW96qVQlGa8sjWnTM0IKAijoFvTwATDIZgK4k0=
+github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
+github.com/leaanthony/mewn v0.10.6 h1:tL8YYcVXGpJJeWlwjd2su88or8Ul+0cQoJPNcICGMto=
+github.com/leaanthony/mewn v0.10.6/go.mod h1:i3ygCWW96qVQlGa8sjWnTM0IKAijoFvTwATDIZgK4k0=
 github.com/leaanthony/slicer v1.3.1 h1:n2iIV2sxvL/3bpnmVY0vBjXf3yYFWcB6CYLVMrzJxRw=
 github.com/leaanthony/slicer v1.3.1/go.mod h1:VMB/HGvr3uR3MRpFWHWAm0w+DHQLzPHYe2pKfpFlQIQ=
 github.com/leaanthony/spinner v0.5.0 h1:HQykt/iTy7fmINEREtRbWrt+8j4MxC8dtvWBxEWM9oA=
@@ -31,16 +43,21 @@ github.com/leaanthony/synx v0.1.0 h1:R0lmg2w6VMb8XcotOwAe5DLyzwjLrskNkwU7LLWsyL8
 github.com/leaanthony/synx v0.1.0/go.mod h1:Iz7eybeeG8bdq640iR+CwYb8p+9EOsgMWghkSRyZcqs=
 github.com/leaanthony/wincursor v0.1.0 h1:Dsyp68QcF5cCs65AMBmxoYNEm0n8K7mMchG6a8fYxf8=
 github.com/leaanthony/wincursor v0.1.0/go.mod h1:7TVwwrzSH/2Y9gLOGH+VhA+bZhoWXBRgbGNTMk+yimE=
+github.com/masterminds/semver v1.4.2 h1:BgrAYDjlAebjtOwS7C/1QZoh5WgyXx4b59ydc+Ph8xI=
+github.com/masterminds/semver v1.4.2/go.mod h1:s7KNT9fnd7edGzwwP7RBX4H0v/CYd5qdOLfkL1V75yg=
 github.com/mattn/go-colorable v0.0.9 h1:UVL0vNpWh04HeJXV0KLcaT7r06gOH2l4OW6ddYRUIY4=
 github.com/mattn/go-colorable v0.0.9/go.mod h1:9vuHe8Xs5qXnSaW/c/ABM9alt+Vo+STaOChaDxuIBZU=
 github.com/mattn/go-colorable v0.1.1 h1:G1f5SKeVxmagw/IyvzvtZE4Gybcc4Tr1tf7I8z0XgOg=
 github.com/mattn/go-colorable v0.1.1/go.mod h1:FuOcm+DKB9mbwrcAfNl7/TZVBZ6rcnceauSikq3lYCQ=
+github.com/mattn/go-isatty v0.0.3/go.mod h1:M+lRXTBqGeGNdLjl/ufCoiOlB5xdOkqRJdNxMWT7Zi4=
 github.com/mattn/go-isatty v0.0.4 h1:bnP0vzxcAdeI1zdubAl5PjU6zsERjGZb7raWodagDYs=
 github.com/mattn/go-isatty v0.0.4/go.mod h1:M+lRXTBqGeGNdLjl/ufCoiOlB5xdOkqRJdNxMWT7Zi4=
 github.com/mattn/go-isatty v0.0.5/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s=
-github.com/mattn/go-isatty v0.0.6 h1:SrwhHcpV4nWrMGdNcC2kXpMfcBVYGDuTArqyhocJgvA=
+github.com/mattn/go-isatty v0.0.7 h1:UvyT9uN+3r7yLEYSlJsbQGdsaB/a0DlgWP3pql6iwOc=
-github.com/mattn/go-isatty v0.0.6/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s=
+github.com/mattn/go-isatty v0.0.7/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s=
 github.com/mattn/go-runewidth v0.0.4/go.mod h1:LwmH8dsx7+W8Uxz3IHJYH5QSwggIsqBzpuz5H//U1FU=
+github.com/mgutz/ansi v0.0.0-20170206155736-9520e82c474b h1:j7+1HpAFS1zy5+Q4qx1fWh90gTKwiN4QCGoY9TWyyO4=
+github.com/mgutz/ansi v0.0.0-20170206155736-9520e82c474b/go.mod h1:01TrycV0kFyexm33Z7vhZRXopbI8J3TDReVlkTgMUxE=
 github.com/mitchellh/go-homedir v1.1.0 h1:lukF9ziXFxDFPkA1vsr5zpc1XuPDn/wFntq5mG+4E0Y=
 github.com/mitchellh/go-homedir v1.1.0/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrkLzIz1N1q0pr0=
 github.com/nfnt/resize v0.0.0-20180221191011-83c6a9932646 h1:zYyBkD/k9seD2A7fsi6Oo2LfFZAehjjQMERAvZLEDnQ=
@@ -53,30 +70,38 @@ github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINE
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/ribice/glice v0.0.0-20181011133736-685f13fa9b12/go.mod h1:A+ednilkKNW0CJGLsrLkq0D49M4EhlCi8gvnkwoZFn0=
-github.com/sirupsen/logrus v1.3.0 h1:hI/7Q+DtNZ2kINb6qt/lS+IyXnHQe9e90POfeewL/ME=
+github.com/sirupsen/logrus v1.4.1 h1:GL2rEmy6nsikmW0r8opw9JIRScdMF5hA8cOYLH7In1k=
-github.com/sirupsen/logrus v1.3.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
+github.com/sirupsen/logrus v1.4.1/go.mod h1:ni0Sbl8bgC9z8RoU9G6nDWqqs/fq4eDPysMBDgk/93Q=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.2.1/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
 github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0Q=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
 github.com/wailsapp/webview v0.2.7 h1:fN5L5H9Oivg9IJPk7uaXQnjqB68Fny11ZWkIaTIZHmk=
 github.com/wailsapp/webview v0.2.7/go.mod h1:XO9HJbKWokDxUYTWQEBCYg95n/To1v7PxvanDNVf8hY=
 github.com/zserge/webview v0.0.0-20190123072648-16c93bcaeaeb/go.mod h1:a1CV8KR4Dd1eP2g+mEijGOp+HKczwdKHWyx0aPHKvo4=
-golang.org/x/crypto v0.0.0-20180904163835-0709b304e793 h1:u+LnwYTOOW7Ukr/fppxEb1Nwz0AtPflrblfvUudpo+I=
+golang.org/x/crypto v0.0.0-20190123085648-057139ce5d2b/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
-golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2 h1:VklqNMn3ovrHsnt90PveolxSbWFaJdECFbxSq0Mqo2M=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529 h1:iMGN4xG0cnqj3t+zOM8wUB0BiPKHEwSxEZCvzcbZuvk=
+golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/net v0.0.0-20181220203305-927f97764cc3 h1:eH6Eip3UpmR+yM/qI9Ijluzb1bNv/cAU/n+6l8tRSis=
 golang.org/x/net v0.0.0-20181220203305-927f97764cc3/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
-golang.org/x/net v0.0.0-20190310014029-b774fd8d5c0f h1:CxcNDReoTQBlkHuyVUepQrMJTSa7q1+j65kVRv6jK3c=
+golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
-golang.org/x/net v0.0.0-20190310014029-b774fd8d5c0f/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
+golang.org/x/net v0.0.0-20190509222800-a4d6f7feada5 h1:6M3SDHlHHDCx2PcQw3S4KsR170vGqDhJDOmpVd4Hjak=
+golang.org/x/net v0.0.0-20190509222800-a4d6f7feada5/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/oauth2 v0.0.0-20181203162652-d668ce993890/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
+golang.org/x/sys v0.0.0-20180606202747-9527bec2660b/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20181228144115-9a3f9b0469bb h1:pf3XwC90UUdNPYWZdFjhGBE7DUFuK3Ct1zWmZ65QN30=
 golang.org/x/sys v0.0.0-20181228144115-9a3f9b0469bb/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223 h1:DH4skfRX4EBpamg7iV4ZlCpblAHI6s6TDM39bFZumv8=
 golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
-golang.org/x/sys v0.0.0-20190310054646-10058d7d4faa h1:lqti/xP+yD/6zH5TqEwx2MilNIJY5Vbc6Qr8J3qyPIQ=
+golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20190310054646-10058d7d4faa/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20190509141414-a5b02f93d862 h1:rM0ROo5vb9AdYJi1110yjWGMej9ITfKddS89P3Fkhug=
+golang.org/x/sys v0.0.0-20190509141414-a5b02f93d862/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+gopkg.in/AlecAivazis/survey.v1 v1.8.4 h1:10xXXN3wgIhPheb5NI58zFgZv32Ana7P3Tl4shW+0Qc=
+gopkg.in/AlecAivazis/survey.v1 v1.8.4/go.mod h1:iBNOmqKz/NUbZx3bA+4hAGLRC7fSK7tgtVDT4tB22XA=

scripts/updateversion.sh

@@ -1,8 +1,15 @@
 #!/usr/bin/env bash
-TAG=$(git describe --abbrev=0 --tags)
+if [ "$#" != "1" ]; then 
+  echo "Tag required"
+  exit 1
+fi
+TAG=${1}
 cat << EOF > cmd/version.go
 package cmd
 
 // Version - Wails version
 const Version = "${TAG}"
-EOF
+EOF
+git add cmd/version.go
+git commit cmd/version.go -m "Bump to ${TAG}" 
+git tag ${TAG}