Closes #43. Add CommandRunner module to the app.

CommandRunner allows you to define a terminal command and arguments, run
it on a schedule, and view the output.

Examples:

   ping -3 cisco.com

bamboohr/widget.go

@@ -2,7 +2,6 @@ package bamboohr
 
 import (
 	"fmt"
-	"time"
 
 	"github.com/olebedev/config"
 	"github.com/senorprogrammer/wtf/wtf"
@@ -37,12 +36,11 @@ func (widget *Widget) Refresh() {
 		wtf.Now().Format(wtf.DateFormat),
 	)
 
+	widget.UpdateRefreshedAt()
 	widget.View.SetTitle(fmt.Sprintf(" 👽 Away (%d) ", len(todayItems)))
-
 	widget.View.Clear()
-	fmt.Fprintf(widget.View, "%s", widget.contentFrom(todayItems))
 
-	widget.RefreshedAt = time.Now()
+	fmt.Fprintf(widget.View, "%s", widget.contentFrom(todayItems))
 }
 
 /* -------------------- Unexported Functions -------------------- */

clocks/widget.go

@@ -33,9 +33,9 @@ func (widget *Widget) Refresh() {
 		return
 	}
 
+	widget.UpdateRefreshedAt()
 	widget.View.Clear()
 	widget.display(widget.clockColl.Sorted())
-	widget.RefreshedAt = time.Now()
 }
 
 /* -------------------- Unexported Functions -------------------- */

cmdrunner/widget.go

@@ -2,6 +2,11 @@ package cmdrunner
 
 import (
 	"fmt"
+	"os/exec"
+	"strings"
+
+	"github.com/olebedev/config"
+	"github.com/senorprogrammer/wtf/wtf"
 )
 
 // Config is a pointer to the global config object
@@ -10,9 +15,42 @@ var Config *config.Config
 type Widget struct {
 	wtf.TextWidget
 
-	cmd string
+	args   []string
+	cmd    string
+	result string
 }
 
 func NewWidget() *Widget {
 
+	widget := Widget{
+		TextWidget: wtf.NewTextWidget(" 🏃 Runner ", "cmdrunner", true),
+
+		args: wtf.ToStrs(Config.UList("wtf.mods.cmdrunner.args")),
+		cmd:  Config.UString("wtf.mods.cmdrunner.cmd"),
+	}
+
+	return &widget
+}
+
+func (widget *Widget) Refresh() {
+	if widget.Disabled() {
+		return
+	}
+
+	widget.UpdateRefreshedAt()
+	widget.execute()
+	widget.View.Clear()
+	widget.View.SetTitle(fmt.Sprintf(" %s ", widget))
+
+	fmt.Fprintf(widget.View, "%s", widget.result)
+}
+
+func (widget *Widget) String() string {
+	args := strings.Join(widget.args, " ")
+	return fmt.Sprintf("%s %s", widget.cmd, args)
+}
+
+func (widget *Widget) execute() {
+	cmd := exec.Command(widget.cmd, widget.args...)
+	widget.result = wtf.ExecuteCommand(cmd)
 }

gcal/widget.go

@@ -35,10 +35,10 @@ func (widget *Widget) Refresh() {
 
 	events, _ := Fetch()
 
+	widget.UpdateRefreshedAt()
 	widget.View.Clear()
-	fmt.Fprintf(widget.View, "%s", widget.contentFrom(events))
 
-	widget.RefreshedAt = time.Now()
+	fmt.Fprintf(widget.View, "%s", widget.contentFrom(events))
 }
 
 /* -------------------- Unexported Functions -------------------- */

git/widget.go

@@ -1,8 +1,6 @@
 package git
 
 import (
-	"time"
-
 	"github.com/gdamore/tcell"
 	"github.com/olebedev/config"
 	"github.com/rivo/tview"
@@ -26,7 +24,7 @@ const helpText = `
 type Widget struct {
 	wtf.TextWidget
 
-	app      *tview.Application
+	app   *tview.Application
 	Data  []*GitRepo
 	Idx   int
 	pages *tview.Pages
@@ -36,9 +34,9 @@ func NewWidget(app *tview.Application, pages *tview.Pages) *Widget {
 	widget := Widget{
 		TextWidget: wtf.NewTextWidget(" Git ", "git", true),
 
-		app: app,
+		app:   app,
-		Idx:        0,
+		Idx:   0,
-		pages:      pages,
+		pages: pages,
 	}
 
 	widget.View.SetInputCapture(widget.keyboardIntercept)
@@ -54,10 +52,10 @@ func (widget *Widget) Refresh() {
 	}
 
 	repoPaths := wtf.ToStrs(Config.UList("wtf.mods.git.repositories"))
-	widget.Data = widget.gitRepos(repoPaths)
 
+	widget.UpdateRefreshedAt()
+	widget.Data = widget.gitRepos(repoPaths)
 	widget.display()
-	widget.RefreshedAt = time.Now()
 }
 
 func (widget *Widget) Next() {

github/widget.go

@@ -1,8 +1,6 @@
 package github
 
 import (
-	"time"
-
 	"github.com/gdamore/tcell"
 	"github.com/olebedev/config"
 	"github.com/rivo/tview"
@@ -56,8 +54,8 @@ func (widget *Widget) Refresh() {
 
 	widget.Data = widget.buildRepoCollection(Config.UMap("wtf.mods.github.repositories"))
 
+	widget.UpdateRefreshedAt()
 	widget.display()
-	widget.RefreshedAt = time.Now()
 }
 
 func (widget *Widget) Next() {

jira/widget.go

@@ -2,7 +2,6 @@ package jira
 
 import (
 	"fmt"
-	"time"
 
 	"github.com/olebedev/config"
 	"github.com/senorprogrammer/wtf/wtf"
@@ -32,6 +31,7 @@ func (widget *Widget) Refresh() {
 
 	searchResult, err := IssuesFor(Config.UString("wtf.mods.jira.username"))
 
+	widget.UpdateRefreshedAt()
 	widget.View.Clear()
 
 	if err != nil {
@@ -49,8 +49,6 @@ func (widget *Widget) Refresh() {
 		)
 		fmt.Fprintf(widget.View, "%s", widget.contentFrom(searchResult))
 	}
-
-	widget.RefreshedAt = time.Now()
 }
 
 /* -------------------- Unexported Functions -------------------- */

newrelic/widget.go

@@ -2,7 +2,6 @@ package newrelic
 
 import (
 	"fmt"
-	"time"
 
 	"github.com/olebedev/config"
 	"github.com/senorprogrammer/wtf/wtf"
@@ -39,8 +38,8 @@ func (widget *Widget) Refresh() {
 		appName = app.Name
 	}
 
+	widget.UpdateRefreshedAt()
 	widget.View.SetTitle(fmt.Sprintf(" New Relic: [green]%s[white] ", appName))
-
 	widget.View.Clear()
 
 	if depErr != nil {
@@ -50,8 +49,6 @@ func (widget *Widget) Refresh() {
 		widget.View.SetWrap(false)
 		fmt.Fprintf(widget.View, "%s", widget.contentFrom(deploys))
 	}
-
-	widget.RefreshedAt = time.Now()
 }
 
 /* -------------------- Unexported Functions -------------------- */

opsgenie/widget.go

@@ -3,7 +3,6 @@ package opsgenie
 import (
 	"fmt"
 	"strings"
-	"time"
 
 	"github.com/olebedev/config"
 	"github.com/senorprogrammer/wtf/wtf"
@@ -33,8 +32,8 @@ func (widget *Widget) Refresh() {
 
 	data, err := Fetch()
 
+	widget.UpdateRefreshedAt()
 	widget.View.SetTitle(" ⏰ On Call ")
-
 	widget.View.Clear()
 
 	if err != nil {
@@ -44,8 +43,6 @@ func (widget *Widget) Refresh() {
 		widget.View.SetWrap(false)
 		fmt.Fprintf(widget.View, "%s", widget.contentFrom(data))
 	}
-
-	widget.RefreshedAt = time.Now()
 }
 
 /* -------------------- Unexported Functions -------------------- */

security/widget.go

@@ -2,7 +2,6 @@ package security
 
 import (
 	"fmt"
-	"time"
 
 	"github.com/olebedev/config"
 	"github.com/senorprogrammer/wtf/wtf"
@@ -33,10 +32,10 @@ func (widget *Widget) Refresh() {
 	data := NewSecurityData()
 	data.Fetch()
 
+	widget.UpdateRefreshedAt()
 	widget.View.Clear()
-	fmt.Fprintf(widget.View, "%s", widget.contentFrom(data))
 
-	widget.RefreshedAt = time.Now()
+	fmt.Fprintf(widget.View, "%s", widget.contentFrom(data))
 }
 
 /* -------------------- Unexported Functions -------------------- */

status/widget.go

@@ -2,7 +2,6 @@ package status
 
 import (
 	"fmt"
-	"time"
 
 	"github.com/olebedev/config"
 	"github.com/senorprogrammer/wtf/wtf"
@@ -33,14 +32,14 @@ func (widget *Widget) Refresh() {
 		return
 	}
 
+	widget.UpdateRefreshedAt()
 	widget.View.Clear()
+
 	fmt.Fprintf(
 		widget.View,
 		"\n%s",
 		widget.animation(),
 	)
-
-	widget.RefreshedAt = time.Now()
 }
 
 /* -------------------- Unexported Functions -------------------- */

system/widget.go

@@ -37,6 +37,7 @@ func (widget *Widget) Refresh() {
 		return
 	}
 
+	widget.UpdateRefreshedAt()
 	widget.View.Clear()
 
 	fmt.Fprintf(
@@ -51,8 +52,6 @@ func (widget *Widget) Refresh() {
 		"Build",
 		widget.systemInfo.BuildVersion,
 	)
-
-	widget.RefreshedAt = time.Now()
 }
 
 func (widget *Widget) prettyDate() string {

textfile/widget.go

@@ -3,7 +3,6 @@ package textfile
 import (
 	"fmt"
 	"io/ioutil"
-	"time"
 
 	"github.com/gdamore/tcell"
 	"github.com/olebedev/config"
@@ -53,9 +52,8 @@ func (widget *Widget) Refresh() {
 		return
 	}
 
+	widget.UpdateRefreshedAt()
 	widget.View.SetTitle(fmt.Sprintf(" 📄 %s ", widget.filePath))
-	widget.RefreshedAt = time.Now()
-
 	widget.View.Clear()
 
 	filePath, _ := wtf.ExpandHomeDir(widget.filePath)

todo/widget.go

@@ -3,7 +3,6 @@ package todo
 import (
 	"fmt"
 	"io/ioutil"
-	"time"
 
 	"github.com/gdamore/tcell"
 	"github.com/olebedev/config"
@@ -66,9 +65,9 @@ func (widget *Widget) Refresh() {
 		return
 	}
 
+	widget.UpdateRefreshedAt()
 	widget.load()
 	widget.display()
-	widget.RefreshedAt = time.Now()
 }
 
 /* -------------------- Unexported Functions -------------------- */

weather/widget.go

@@ -2,7 +2,6 @@ package weather
 
 import (
 	"os"
-	"time"
 
 	owm "github.com/briandowns/openweathermap"
 	"github.com/gdamore/tcell"
@@ -81,8 +80,8 @@ func (widget *Widget) Refresh() {
 
 	widget.Data = widget.Fetch(wtf.ToInts(Config.UList("wtf.mods.weather.cityids", widget.defaultCityCodes())))
 
+	widget.UpdateRefreshedAt()
 	widget.display()
-	widget.RefreshedAt = time.Now()
 }
 
 // Next displays data for the next city data in the list. If the current city is the last
@@ -219,7 +218,7 @@ func (widget *Widget) keyboardIntercept(event *tcell.EventKey) *tcell.EventKey {
 	case "/":
 		widget.showHelp()
 		return nil
-  case "h":
+	case "h":
 		widget.Prev()
 		return nil
 	case "l":

wtf.go

@@ -10,6 +10,7 @@ import (
 	"github.com/rivo/tview"
 	"github.com/senorprogrammer/wtf/bamboohr"
 	"github.com/senorprogrammer/wtf/clocks"
+	"github.com/senorprogrammer/wtf/cmdrunner"
 	"github.com/senorprogrammer/wtf/gcal"
 	"github.com/senorprogrammer/wtf/git"
 	"github.com/senorprogrammer/wtf/github"
@@ -63,7 +64,7 @@ func buildGrid(modules []wtf.Wtfable) *tview.Grid {
 func keyboardIntercept(event *tcell.EventKey) *tcell.EventKey {
 	switch event.Key() {
 	case tcell.KeyCtrlR:
-		refreshAllModules()
+		refreshAllWidgets()
 	case tcell.KeyTab:
 		FocusTracker.Next()
 	case tcell.KeyBacktab:
@@ -96,9 +97,9 @@ func redrawApp(app *tview.Application) {
 	}
 }
 
-func refreshAllModules() {
+func refreshAllWidgets() {
-	for _, module := range Widgets {
+	for _, widget := range Widgets {
-		go module.Refresh()
+		go widget.Refresh()
 	}
 }
 
@@ -151,6 +152,7 @@ func main() {
 
 	bamboohr.Config = Config
 	clocks.Config = Config
+	cmdrunner.Config = Config
 	gcal.Config = Config
 	git.Config = Config
 	github.Config = Config
@@ -168,6 +170,7 @@ func main() {
 	Widgets = []wtf.Wtfable{
 		bamboohr.NewWidget(),
 		clocks.NewWidget(),
+		cmdrunner.NewWidget(),
 		gcal.NewWidget(),
 		git.NewWidget(app, pages),
 		github.NewWidget(app, pages),

wtf/text_widget.go

@@ -85,3 +85,7 @@ func (widget *TextWidget) addView() {
 
 	widget.View = view
 }
+
+func (widget *TextWidget) UpdateRefreshedAt() {
+	widget.RefreshedAt = time.Now()
+}