Merge pull request #522 from wtfutil/20190802-custom-config-handling

Improve the config file handling process

.travis.yml

@@ -11,4 +11,4 @@ before_install:
   - cd $HOME/gopath/src/github.com/wtfutil/wtf
   - export GOPROXY="https://gocenter.io" && export GO111MODULE=on
 
-script: go get ./... && go get github.com/go-test/deep && go test -v github.com/wtfutil/wtf/wtf_tests/...
+script: go get ./... && go test -v github.com/wtfutil/wtf/...

cfg/config_files.go

@@ -57,12 +57,20 @@ func CreateFile(fileName string) (string, error) {
 
 // Initialize takes care of settings up the initial state of WTF configuration
 // It ensures necessary directories and files exist
-func Initialize() {
-	migrateOldConfig()
+func Initialize(hasCustom bool) {
+	if hasCustom == false {
+		migrateOldConfig()
+	}
+
+	// These always get created because this is where modules should write any permanent
+	// data they need to persist between runs (i.e.: log, textfile, etc.)
 	createXdgConfigDir()
 	createWtfConfigDir()
-	createWtfConfigFile()
-	chmodConfigFile()
+
+	if hasCustom == false {
+		createWtfConfigFile()
+		chmodConfigFile()
+	}
 }
 
 // WtfConfigDir returns the absolute path to the configuration directory
@@ -144,7 +152,8 @@ func createWtfConfigDir() {
 func createWtfConfigFile() {
 	filePath, err := CreateFile(WtfConfigFile)
 	if err != nil {
-		panic(err)
+		displayDefaultConfigCreateError(err)
+		os.Exit(1)
 	}
 
 	// If the file is empty, write to it

cfg/error_messages.go

@@ -18,8 +18,14 @@ func displayError(err error) {
 	fmt.Printf("%s %s\n\n", aurora.Red("Error:"), err.Error())
 }
 
+func displayDefaultConfigCreateError(err error) {
+	fmt.Printf("\n%s Could not create the default configuration file.\n", aurora.Red("ERROR"))
+	fmt.Println()
+	displayError(err)
+}
+
 func displayDefaultConfigWriteError(err error) {
-	fmt.Printf("\n%s Could not write the default configuration.\n", aurora.Red("ERROR"))
+	fmt.Printf("\n%s Could not write the default configuration file.\n", aurora.Red("ERROR"))
 	fmt.Println()
 	displayError(err)
 }

main.go

@@ -46,14 +46,16 @@ func main() {
 	log.SetFlags(log.LstdFlags | log.Lshortfile)
 
 	// Manage the configuration directories and config file
-	cfg.Initialize()
 
 	// Parse and handle flags
 	flags := flags.NewFlags()
 	flags.Parse()
 
+	hasCustom := flags.HasCustomConfig()
+	cfg.Initialize(hasCustom)
+
 	// Load the configuration file
-	config := cfg.LoadWtfConfigFile(flags.ConfigFilePath(), flags.HasCustomConfig())
+	config := cfg.LoadWtfConfigFile(flags.ConfigFilePath(), hasCustom)
 	flags.RenderIf(version, config)
 
 	if flags.Profile {
@@ -66,7 +68,7 @@ func main() {
 
 	// Build the application
 	tviewApp = tview.NewApplication()
-	wtfApp := app.NewWtfApp(tviewApp, config, flags.Config, flags.HasCustomConfig())
+	wtfApp := app.NewWtfApp(tviewApp, config, flags.Config, hasCustom)
 	wtfApp.Start()
 
 	if err := tviewApp.Run(); err != nil {

modules/gitter/client.go

@@ -4,7 +4,6 @@ import (
 	"bytes"
 	"encoding/json"
 	"fmt"
-	"github.com/wtfutil/wtf/logger"
 	"io"
 	"io/ioutil"
 	"net/http"
@@ -35,7 +34,6 @@ func GetRoom(roomUri, apiToken string) (*Room, error) {
 	parseJson(&rooms, resp.Body)
 
 	for _, room := range rooms.Results {
-		logger.Log(fmt.Sprintf("room: %s", room))
 		if room.URI == roomUri {
 			return &room, nil
 		}

modules/spotifyweb/widget.go

@@ -4,9 +4,9 @@ import (
 	"errors"
 	"fmt"
 	"net/http"
+	"os"
 
 	"github.com/rivo/tview"
-	"github.com/wtfutil/wtf/logger"
 	"github.com/wtfutil/wtf/wtf"
 	"github.com/zmb3/spotify"
 )
@@ -43,15 +43,12 @@ var (
 )
 
 func authHandler(w http.ResponseWriter, r *http.Request) {
-	logger.Log("[SpotifyWeb] Got an authentication hit!")
 	tok, err := auth.Token(state, r)
 	if err != nil {
 		http.Error(w, "Couldn't get token", http.StatusForbidden)
-		logger.Log(err.Error())
 	}
 	if st := r.FormValue("state"); st != state {
 		http.NotFound(w, r)
-		logger.Log(fmt.Sprintf("State mismatch: %s != %s\n", st, state))
 	}
 	// use the token to get an authenticated client
 	client := auth.NewClient(tok)
@@ -87,7 +84,6 @@ func NewWidget(app *tview.Application, pages *tview.Pages, settings *Settings) *
 
 	go func() {
 		// wait for auth to complete
-		logger.Log("[SpotifyWeb] Waiting for authentication... URL: " + authURL)
 		client = <-tempClientChan
 
 		// use the client to make calls that require authorization
@@ -98,9 +94,10 @@ func NewWidget(app *tview.Application, pages *tview.Pages, settings *Settings) *
 
 		playerState, err = client.PlayerState()
 		if err != nil {
-			panic(err)
+			fmt.Println(err)
+			os.Exit(1)
 		}
-		logger.Log("[SpotifyWeb] Authentication complete.")
+
 		widget.client = client
 		widget.playerState = playerState
 		widget.Refresh()

modules/textfile/widget.go

@@ -4,7 +4,6 @@ import (
 	"bytes"
 	"fmt"
 	"io/ioutil"
-	"log"
 	"os"
 	"path/filepath"
 	"time"
@@ -18,6 +17,10 @@ import (
 	"github.com/wtfutil/wtf/wtf"
 )
 
+const (
+	pollingIntervalms = 100
+)
+
 type Widget struct {
 	wtf.KeyboardWidget
 	wtf.MultiSourceWidget
@@ -137,7 +140,8 @@ func (widget *Widget) watchForFileChanges() {
 			case <-watch.Event:
 				widget.display()
 			case err := <-watch.Error:
-				log.Fatalln(err)
+				fmt.Println(err)
+				os.Exit(1)
 			case <-watch.Closed:
 				return
 			}
@@ -149,13 +153,14 @@ func (widget *Widget) watchForFileChanges() {
 		fullPath, err := utils.ExpandHomeDir(source)
 		if err == nil {
 			if err := watch.Add(fullPath); err != nil {
-				log.Fatalln(err)
+				// Ignore it, don't care about a file that doesn't exist
 			}
 		}
 	}
 
-	// Start the watching process - it'll check for changes every 100ms.
-	if err := watch.Start(time.Millisecond * 100); err != nil {
-		log.Fatalln(err)
+	// Start the watching process - it'll check for changes every pollingIntervalms.
+	if err := watch.Start(time.Millisecond * pollingIntervalms); err != nil {
+		fmt.Println(err)
+		os.Exit(1)
 	}
 }

wtf/multisource_widget.go

@@ -1,11 +1,10 @@
 package wtf
 
 import (
-	"fmt"
 	"github.com/wtfutil/wtf/cfg"
-	"github.com/wtfutil/wtf/logger"
 )
 
+// MultiSourceWidget is a widget that supports displaying data from multiple sources
 type MultiSourceWidget struct {
 	moduleConfig *cfg.Common
 	singular     string
@@ -26,8 +25,6 @@ func NewMultiSourceWidget(moduleConfig *cfg.Common, singular, plural string) Mul
 
 	widget.loadSources()
 
-	logger.Log(fmt.Sprintf("%+v", widget.Sources))
-
 	return widget
 }
 
@@ -42,7 +39,7 @@ func (widget *MultiSourceWidget) CurrentSource() string {
 	return widget.Sources[widget.Idx]
 }
 
-// Next displays the next source in the source list. If the current source is the last
+// NextSource displays the next source in the source list. If the current source is the last
 // source it wraps around to the first source
 func (widget *MultiSourceWidget) NextSource() {
 	widget.Idx++
@@ -55,7 +52,7 @@ func (widget *MultiSourceWidget) NextSource() {
 	}
 }
 
-// Prev displays the previous source in the source list. If the current source is the first
+// PrevSource displays the previous source in the source list. If the current source is the first
 // source, it wraps around to the last source
 func (widget *MultiSourceWidget) PrevSource() {
 	widget.Idx--