Code optimisation (#1117)

[micro.git] / cmd / micro / settings.go

diff --git a/cmd/micro/settings.go b/cmd/micro/settings.go
index 5052054834998fd67ca821500ad7d38af4fa27cc..23660d156083e353dcdada1e8532f5932ea1d6fd 100644 (file)
--- a/cmd/micro/settings.go
+++ b/cmd/micro/settings.go
@@ -4,11 +4,13 @@ import (
        "crypto/md5"
        "encoding/json"
        "errors"
+       "io"
        "io/ioutil"
        "os"
        "reflect"
        "strconv"
        "strings"
+       "sync"
 
        "github.com/flynn/json5"
        "github.com/zyedidia/glob"
@@ -209,12 +211,14 @@ func DefaultGlobalSettings() map[string]interface{} {
                "eofnewline":     false,
                "fastdirty":      true,
                "fileformat":     "unix",
+               "hidehelp":       false,
                "ignorecase":     false,
                "indentchar":     " ",
                "infobar":        true,
                "keepautoindent": false,
                "keymenu":        false,
                "matchbrace":     false,
+               "matchbraceleft": false,
                "mouse":          true,
                "pluginchannels": []string{"https://raw.githubusercontent.com/micro-editor/plugin-channel/master/channel.json"},
                "pluginrepos":    []string{},
@@ -253,10 +257,12 @@ func DefaultLocalSettings() map[string]interface{} {
                "fastdirty":      true,
                "fileformat":     "unix",
                "filetype":       "Unknown",
+               "hidehelp":       false,
                "ignorecase":     false,
                "indentchar":     " ",
                "keepautoindent": false,
                "matchbrace":     false,
+               "matchbraceleft": false,
                "rmtrailingws":   false,
                "ruler":          true,
                "savecursor":     false,
@@ -387,22 +393,36 @@ func SetLocalOption(option, value string, view *View) error {
 
        if option == "fastdirty" {
                // If it is being turned off, we have to hash every open buffer
-               var empty [16]byte
+               var empty [md5.Size]byte
+               var wg sync.WaitGroup
+
                for _, tab := range tabs {
                        for _, v := range tab.Views {
                                if !nativeValue.(bool) {
                                        if v.Buf.origHash == empty {
-                                               data, err := ioutil.ReadFile(v.Buf.AbsPath)
-                                               if err != nil {
-                                                       data = []byte{}
-                                               }
-                                               v.Buf.origHash = md5.Sum(data)
+                                               wg.Add(1)
+
+                                               go func(b *Buffer) { // calculate md5 hash of the file
+                                                       defer wg.Done()
+
+                                                       if file, e := os.Open(b.AbsPath); e == nil {
+                                                               defer file.Close()
+
+                                                               h := md5.New()
+
+                                                               if _, e = io.Copy(h, file); e == nil {
+                                                                       h.Sum(b.origHash[:0])
+                                                               }
+                                                       }
+                                               }(v.Buf)
                                        }
                                } else {
                                        v.Buf.IsModified = v.Buf.Modified()
                                }
                        }
                }
+
+               wg.Wait()
        }
 
        buf.Settings[option] = nativeValue