add timefmt option for time format in status line

Mentioned in #41.

comp.go

@@ -44,15 +44,15 @@ var (
 	}
 
 	gOptWords = []string{
+		"dirfirst",
+		"nodirfirst",
+		"dirfirst!",
 		"hidden",
 		"nohidden",
 		"hidden!",
 		"preview",
 		"nopreview",
 		"preview!",
-		"dirfirst",
-		"nodirfirst",
-		"dirfirst!",
 		"scrolloff",
 		"tabstop",
 		"ifs",
@@ -60,6 +60,7 @@ var (
 		"shell",
 		"showinfo",
 		"sortby",
+		"timefmt",
 		"ratios",
 	}
 )

doc.go

@@ -45,9 +45,9 @@ The following commands are provided by lf without default keybindings.
 
 The following options can be used to customize the behavior of lf.
 
+    dirfirst   bool    (default on)
     hidden     bool    (default off)
     preview    bool    (default on)
-    dirfirst   bool    (default on)
     scrolloff  int     (default 0)
     tabstop    int     (default 8)
     ifs        string  (default "") (not exported if empty)
@@ -55,6 +55,7 @@ The following options can be used to customize the behavior of lf.
     shell      string  (default "$SHELL")
     showinfo   string  (default "none")
     sortby     string  (default "name")
+    timefmt    string  (default "Mon Jan _2 15:04:05 2006")
     ratios     string  (default "1:2:3")
 
 The following variables are exported for shell commands.

docstring.go

@@ -49,9 +49,9 @@ The following commands are provided by lf without default keybindings.
 
 The following options can be used to customize the behavior of lf.
 
+    dirfirst   bool    (default on)
     hidden     bool    (default off)
     preview    bool    (default on)
-    dirfirst   bool    (default on)
     scrolloff  int     (default 0)
     tabstop    int     (default 8)
     ifs        string  (default "") (not exported if empty)
@@ -59,6 +59,7 @@ The following options can be used to customize the behavior of lf.
     shell      string  (default "$SHELL")
     showinfo   string  (default "none")
     sortby     string  (default "name")
+    timefmt    string  (default "Mon Jan _2 15:04:05 2006")
     ratios     string  (default "1:2:3")
 
 The following variables are exported for shell commands.

eval.go

@@ -11,6 +11,15 @@ import (
 
 func (e *SetExpr) eval(app *App, args []string) {
 	switch e.opt {
+	case "dirfirst":
+		gOpts.dirfirst = true
+		app.nav.renew(app.nav.height)
+	case "nodirfirst":
+		gOpts.dirfirst = false
+		app.nav.renew(app.nav.height)
+	case "dirfirst!":
+		gOpts.dirfirst = !gOpts.dirfirst
+		app.nav.renew(app.nav.height)
 	case "hidden":
 		gOpts.hidden = true
 		app.nav.renew(app.nav.height)
@@ -26,15 +35,6 @@ func (e *SetExpr) eval(app *App, args []string) {
 		gOpts.preview = false
 	case "preview!":
 		gOpts.preview = !gOpts.preview
-	case "dirfirst":
-		gOpts.dirfirst = true
-		app.nav.renew(app.nav.height)
-	case "nodirfirst":
-		gOpts.dirfirst = false
-		app.nav.renew(app.nav.height)
-	case "dirfirst!":
-		gOpts.dirfirst = !gOpts.dirfirst
-		app.nav.renew(app.nav.height)
 	case "scrolloff":
 		n, err := strconv.Atoi(e.val)
 		if err != nil {
@@ -92,6 +92,8 @@ func (e *SetExpr) eval(app *App, args []string) {
 		}
 		gOpts.sortby = e.val
 		app.nav.renew(app.nav.height)
+	case "timefmt":
+		gOpts.timefmt = e.val
 	case "ratios":
 		toks := strings.Split(e.val, ":")
 		var rats []int

opts.go

@@ -1,6 +1,9 @@
 package main
 
+import "time"
+
 var gOpts struct {
+	dirfirst  bool
 	hidden    bool
 	preview   bool
 	scrolloff int
@@ -10,13 +13,14 @@ var gOpts struct {
 	shell     string
 	showinfo  string
 	sortby    string
-	dirfirst  bool
+	timefmt   string
 	ratios    []int
 	keys      map[string]Expr
 	cmds      map[string]Expr
 }
 
 func init() {
+	gOpts.dirfirst = true
 	gOpts.hidden = false
 	gOpts.preview = true
 	gOpts.scrolloff = 0
@@ -24,7 +28,7 @@ func init() {
 	gOpts.shell = envShell
 	gOpts.showinfo = "none"
 	gOpts.sortby = "name"
-	gOpts.dirfirst = true
+	gOpts.timefmt = time.ANSIC
 	gOpts.ratios = []int{1, 2, 3}
 
 	gOpts.keys = make(map[string]Expr)

ui.go

@@ -13,7 +13,6 @@ import (
 	"strconv"
 	"strings"
 	"text/tabwriter"
-	"time"
 	"unicode/utf8"
 
 	"github.com/nsf/termbox-go"
@@ -405,7 +404,7 @@ func (ui *UI) loadFile(nav *Nav) {
 		return
 	}
 
-	ui.message = fmt.Sprintf("%v %v %v", curr.Mode(), humanize(curr.Size()), curr.ModTime().Format(time.ANSIC))
+	ui.message = fmt.Sprintf("%v %v %v", curr.Mode(), humanize(curr.Size()), curr.ModTime().Format(gOpts.timefmt))
 
 	if !gOpts.preview {
 		return