fix race condition

4 files changed, 10 insertions, 11 deletions

diff --git a/go.mod b/go.mod
index 0625ede68..5da6012a8 100644
--- a/go.mod
+++ b/go.mod
@@ -20,7 +20,7 @@ require (
 	github.com/imdario/mergo v0.3.11
 	github.com/integrii/flaggy v1.4.0
 	github.com/jesseduffield/go-git/v5 v5.1.2-0.20201006095850-341962be15a4
-	github.com/jesseduffield/gocui v0.3.1-0.20210412113212-ee65bd542c08
+	github.com/jesseduffield/gocui v0.3.1-0.20210412130453-de7bb5079f9f
 	github.com/jesseduffield/termbox-go v0.0.0-20200823212418-a2289ed6aafe // indirect
 	github.com/jesseduffield/yaml v2.1.0+incompatible
 	github.com/kardianos/osext v0.0.0-20190222173326-2bc1f35cddc0
diff --git a/go.sum b/go.sum
index b80707c08..573569b93 100644
--- a/go.sum
+++ b/go.sum
@@ -114,6 +114,8 @@ github.com/jesseduffield/gocui v0.3.1-0.20210412111008-6ef019af3724 h1:U70Do3/OS
 github.com/jesseduffield/gocui v0.3.1-0.20210412111008-6ef019af3724/go.mod h1:QWq79xplEoyhQO+dgpk3sojjTVRKjQklyTlzm5nC5Kg=
 github.com/jesseduffield/gocui v0.3.1-0.20210412113212-ee65bd542c08 h1:d003y2GByfR3PqN/JvxNuqyo8vx4m0epwY2hW7sNU80=
 github.com/jesseduffield/gocui v0.3.1-0.20210412113212-ee65bd542c08/go.mod h1:QWq79xplEoyhQO+dgpk3sojjTVRKjQklyTlzm5nC5Kg=
+github.com/jesseduffield/gocui v0.3.1-0.20210412130453-de7bb5079f9f h1:JPpHlvSrKNxro+K9rM3nEHCdZ16qD0hnEedHPF07OtA=
+github.com/jesseduffield/gocui v0.3.1-0.20210412130453-de7bb5079f9f/go.mod h1:QWq79xplEoyhQO+dgpk3sojjTVRKjQklyTlzm5nC5Kg=
 github.com/jesseduffield/termbox-go v0.0.0-20200823212418-a2289ed6aafe h1:qsVhCf2RFyyKIUe/+gJblbCpXMUki9rZrHuEctg6M/E=
 github.com/jesseduffield/termbox-go v0.0.0-20200823212418-a2289ed6aafe/go.mod h1:anMibpZtqNxjDbxrcDEAwSdaJ37vyUeM1f/M4uekib4=
 github.com/jesseduffield/yaml v2.1.0+incompatible h1:HWQJ1gIv2zHKbDYNp0Jwjlj24K8aqpFHnMCynY1EpmE=
diff --git a/vendor/github.com/jesseduffield/gocui/edit.go b/vendor/github.com/jesseduffield/gocui/edit.go
index 1e98468c4..ee6d7f604 100644
--- a/vendor/github.com/jesseduffield/gocui/edit.go
+++ b/vendor/github.com/jesseduffield/gocui/edit.go
@@ -131,6 +131,9 @@ func (v *View) EditGotoToEndOfLine() {
 // EditDelete deletes a rune at the cursor position. back determines the
 // direction.
 func (v *View) EditDelete(back bool) {
+	v.writeMutex.Lock()
+	defer v.writeMutex.Unlock()
+
 	x, y := v.ox+v.cx, v.oy+v.cy
 	if y < 0 {
 		return
@@ -177,6 +180,9 @@ func (v *View) EditDelete(back bool) {
 
 // EditNewLine inserts a new line under the cursor.
 func (v *View) EditNewLine() {
+	v.writeMutex.Lock()
+	defer v.writeMutex.Unlock()
+
 	v.breakLine(v.cx, v.cy)
 	v.ox = 0
 	v.cy = v.cy + 1
@@ -397,9 +403,6 @@ func (v *View) writeRune(x, y int, ch rune) error {
 // position corresponding to the point (x, y).
 // returns the amount of columns that where removed.
 func (v *View) deleteRune(x, y int) (int, error) {
-	v.writeMutex.Lock()
-	defer v.writeMutex.Unlock()
-
 	v.tainted = true
 
 	x, y, err := v.realPosition(x, y)
@@ -427,9 +430,6 @@ func (v *View) deleteRune(x, y int) (int, error) {
 
 // mergeLines merges the lines "y" and "y+1" if possible.
 func (v *View) mergeLines(y int) error {
-	v.writeMutex.Lock()
-	defer v.writeMutex.Unlock()
-
 	v.clearViewLines()
 
 	_, y, err := v.realPosition(0, y)
@@ -451,9 +451,6 @@ func (v *View) mergeLines(y int) error {
 // breakLine breaks a line of the internal buffer at the position corresponding
 // to the point (x, y).
 func (v *View) breakLine(x, y int) error {
-	v.writeMutex.Lock()
-	defer v.writeMutex.Unlock()
-
 	v.tainted = true
 
 	x, y, err := v.realPosition(x, y)
diff --git a/vendor/modules.txt b/vendor/modules.txt
index a458811c9..68c377230 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -149,7 +149,7 @@ github.com/jesseduffield/go-git/v5/utils/merkletrie/filesystem
 github.com/jesseduffield/go-git/v5/utils/merkletrie/index
 github.com/jesseduffield/go-git/v5/utils/merkletrie/internal/frame
 github.com/jesseduffield/go-git/v5/utils/merkletrie/noder
-# github.com/jesseduffield/gocui v0.3.1-0.20210412113212-ee65bd542c08
+# github.com/jesseduffield/gocui v0.3.1-0.20210412130453-de7bb5079f9f
 ## explicit
 github.com/jesseduffield/gocui
 # github.com/jesseduffield/termbox-go v0.0.0-20200823212418-a2289ed6aafe