Enable autosave option

The autosave option is now specified as an integer, which denotes
the number of seconds to wait between saving the file. If the option
is 0, then autosaving is disabled. If the option is given by the user
as a boolean, it will be converted to 8 if true, and 0 if false.

Fixes #1479

internal/action/actions.go

@@ -1278,20 +1278,20 @@ func (h *BufPane) Quit() bool {
 		}
 	}
 	if h.Buf.Modified() {
-		// if config.GlobalSettings["autosave"].(float64) > 0 {
-		// autosave on means we automatically save when quitting
-		// h.Save()
-		// quit()
-		// } else {
-		InfoBar.YNPrompt("Save changes to "+h.Buf.GetName()+" before closing? (y,n,esc)", func(yes, canceled bool) {
-			if !canceled && !yes {
-				quit()
-			} else if !canceled && yes {
-				h.Save()
-				quit()
-			}
-		})
-		// }
+		if config.GlobalSettings["autosave"].(float64) > 0 {
+			// autosave on means we automatically save when quitting
+			h.Save()
+			quit()
+		} else {
+			InfoBar.YNPrompt("Save changes to "+h.Buf.GetName()+" before closing? (y,n,esc)", func(yes, canceled bool) {
+				if !canceled && !yes {
+					quit()
+				} else if !canceled && yes {
+					h.Save()
+					quit()
+				}
+			})
+		}
 	} else {
 		quit()
 	}

internal/action/command.go

@@ -442,14 +442,13 @@ func SetGlobalOptionNative(option string, nativeValue interface{}) error {
 			} else {
 				screen.Screen.EnableMouse()
 			}
-			// autosave option has been removed
-			// } else if option == "autosave" {
-			// 	if nativeValue.(float64) > 0 {
-			// 		config.SetAutoTime(int(nativeValue.(float64)))
-			// 		config.StartAutoSave()
-			// 	} else {
-			// 		config.SetAutoTime(0)
-			// 	}
+		} else if option == "autosave" {
+			if nativeValue.(float64) > 0 {
+				config.SetAutoTime(int(nativeValue.(float64)))
+				config.StartAutoSave()
+			} else {
+				config.SetAutoTime(0)
+			}
 		} else if option == "paste" {
 			screen.Screen.SetPaste(nativeValue.(bool))
 		} else {

internal/buffer/buffer.go

@@ -6,6 +6,7 @@ import (
 	"errors"
 	"io"
 	"io/ioutil"
+	"log"
 	"os"
 	"path/filepath"
 	"strconv"
@@ -527,6 +528,7 @@ func (b *Buffer) UpdateRules() {
 	if syntaxFile == "" {
 		// search for the syntax file in the user's custom syntax files
 		for _, f := range config.ListRealRuntimeFiles(config.RTSyntax) {
+			log.Println("real runtime file", f.Name())
 			data, err := f.Data()
 			if err != nil {
 				screen.TermMessage("Error loading syntax file " + f.Name() + ": " + err.Error())
@@ -540,7 +542,7 @@ func (b *Buffer) UpdateRules() {
 				continue
 			}
 
-			if (ft == "unknown" || ft == "" && highlight.MatchFiletype(header.FtDetect, b.Path, b.lines[0].data)) || header.FileType == ft {
+			if ((ft == "unknown" || ft == "") && highlight.MatchFiletype(header.FtDetect, b.Path, b.lines[0].data)) || header.FileType == ft {
 				syndef, err := highlight.ParseDef(file, header)
 				if err != nil {
 					screen.TermMessage("Error parsing syntax file " + f.Name() + ": " + err.Error())

internal/config/settings.go

@@ -35,7 +35,7 @@ func init() {
 
 // Options with validators
 var optionValidators = map[string]optionValidator{
-	// "autosave":     validateNonNegativeValue,
+	"autosave":     validateNonNegativeValue,
 	"tabsize":      validatePositiveValue,
 	"scrollmargin": validateNonNegativeValue,
 	"scrollspeed":  validateNonNegativeValue,
@@ -58,6 +58,18 @@ func ReadSettings() error {
 			if err != nil {
 				return errors.New("Error reading settings.json: " + err.Error())
 			}
+
+			// check if autosave is a boolean and convert it to float if so
+			if v, ok := parsedSettings["autosave"]; ok {
+				s, ok := v.(bool)
+				if ok {
+					if s {
+						parsedSettings["autosave"] = 8.0
+					} else {
+						parsedSettings["autosave"] = 0.0
+					}
+				}
+			}
 		}
 	}
 	return nil
@@ -232,7 +244,7 @@ func DefaultCommonSettings() map[string]interface{} {
 // a list of settings that should only be globally modified and their
 // default values
 var defaultGlobalSettings = map[string]interface{}{
-	// "autosave":    float64(0),
+	"autosave":       float64(0),
 	"colorscheme":    "default",
 	"infobar":        true,
 	"keymenu":        false,