Add autosave option

cmd/micro/micro.go

@@ -233,6 +233,10 @@ func main() {
 		case f := <-shell.Jobs:
 			// If a new job has finished while running in the background we should execute the callback
 			f.Function(f.Output, f.Args...)
+		case <-config.Autosave:
+			for _, b := range buffer.OpenBuffers {
+				b.Save()
+			}
 		case event = <-events:
 		case <-screen.DrawChan:
 		}

internal/action/actions.go

@@ -1162,14 +1162,20 @@ func (h *BufPane) Quit() bool {
 		}
 	}
 	if h.Buf.Modified() {
-		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

@@ -404,6 +404,12 @@ func SetGlobalOptionNative(option string, nativeValue interface{}) error {
 		} else {
 			screen.Screen.EnableMouse()
 		}
+	} else if option == "autosave" {
+		if nativeValue.(float64) > 0 {
+			config.StartAutoSave()
+		} else {
+			config.StopAutoSave()
+		}
 	} else {
 		for _, pl := range config.Plugins {
 			if option == pl.Name {

internal/buffer/save.go

@@ -57,6 +57,9 @@ func (b *Buffer) Save() error {
 // SaveAs saves the buffer to a specified path (filename), creating the file if it does not exist
 func (b *Buffer) SaveAs(filename string) error {
 	var err error
+	if b.Type.Readonly {
+		return errors.New("Cannot save readonly buffer")
+	}
 	if b.Type.Scratch {
 		return errors.New("Cannot save scratch buffer")
 	}

internal/config/autosave.go

@@ -0,0 +1,30 @@
+package config
+
+import (
+	"log"
+	"time"
+)
+
+var Autosave chan bool
+
+func init() {
+	Autosave = make(chan bool)
+}
+
+func StartAutoSave() {
+	go func() {
+		for {
+			autotime := time.Duration(GlobalSettings["autosave"].(float64))
+			if autotime < 1 {
+				break
+			}
+			time.Sleep(autotime * time.Second)
+			log.Println("Autosave")
+			Autosave <- true
+		}
+	}()
+}
+
+func StopAutoSave() {
+	GlobalSettings["autosave"] = float64(0)
+}

internal/config/globals.go

@@ -2,7 +2,6 @@ package config
 
 const (
 	DoubleClickThreshold = 400 // How many milliseconds to wait before a second click is not a double click
-	AutosaveTime         = 8   // Number of seconds to wait before autosaving
 )
 
 var Bindings map[string]string

internal/config/settings.go

@@ -30,6 +30,7 @@ var (
 
 // Options with validators
 var optionValidators = map[string]optionValidator{
+	"autosave":     validateNonNegativeValue,
 	"tabsize":      validatePositiveValue,
 	"scrollmargin": validateNonNegativeValue,
 	"scrollspeed":  validateNonNegativeValue,
@@ -150,7 +151,6 @@ func GetGlobalOption(name string) interface{} {
 
 var defaultCommonSettings = map[string]interface{}{
 	"autoindent":     true,
-	"autosave":       false,
 	"basename":       false,
 	"colorcolumn":    float64(0),
 	"cursorline":     true,
@@ -209,6 +209,7 @@ func DefaultCommonSettings() map[string]interface{} {
 }
 
 var defaultGlobalSettings = map[string]interface{}{
+	"autosave":    float64(0),
 	"colorscheme": "default",
 	"infobar":     true,
 	"keymenu":     false,

runtime/help/options.md

@@ -13,12 +13,14 @@ Here are the options that you can set:
 
 	default value: `true`
 
-* `autosave`: micro will save the buffer every 8 seconds automatically. Micro
-   also will automatically save and quit when you exit without asking. Be
-   careful when using this feature, because you might accidentally save a file,
-   overwriting what was there before.
+* `autosave`: micro will save the buffer every `n` seconds automatically
+   (where `n` is the value of the option). Micro also will automatically
+   save and quit when you exit without asking. Be careful when using this
+   feature, because you might accidentally save a file, overwriting what
+   was there before. If the value of the option is `0` then micro will
+   not autosave.
 
-	default value: `false`
+	default value: `0`
 
 * `basename`: in the infobar, show only the basename of the file being edited
    rather than the full path.
@@ -123,6 +125,12 @@ Here are the options that you can set:
 
     default value: `false`
 
+* `mkparents`: if a file is opened on a path that does not exist, the file cannot
+   be saved because the parent directories don't exist. This option lets micro
+   automatically create the parent directories in such a situation.
+
+    default value: `false`
+
 * `mouse`: whether to enable mouse support. When mouse support is disabled,
    usually the terminal will be able to access mouse events which can be useful
    if you want to copy from the terminal instead of from micro (if over ssh for
@@ -131,19 +139,6 @@ Here are the options that you can set:
 
 	default value: `true`
 
-* `pluginchannels`: contains all the channels micro's plugin manager will search
-   for plugins in. A channel is simply a list of 'repository' json files which
-   contain metadata about the given plugin. See the `Plugin Manager` section of
-   the `plugins` help topic for more information.
-
-	default value: `https://github.com/micro-editor/plugin-channel`
-
-* `pluginrepos`: contains all the 'repositories' micro's plugin manager will
-   search for plugins in. A repository consists of a `repo.json` file which
-   contains metadata for a single plugin.
-
-	default value: ` `
-
 * `rmtrailingws`: micro will automatically trim trailing whitespaces at eol.
 
 	default value: `false`