Add on-init hook command (#1838)

client.go

@@ -117,7 +117,7 @@ func readExpr() <-chan expr {
 	ch := make(chan expr)
 
 	go func() {
-		duration := 1 * time.Second
+		duration := 100 * time.Millisecond
 
 		c, err := net.Dial(gSocketProt, gSocketPath)
 		for err != nil {
@@ -130,6 +130,7 @@ func readExpr() <-chan expr {
 		fmt.Fprintf(c, "conn %d\n", gClientID)
 
 		ch <- &callExpr{"sync", nil, 1}
+		ch <- &callExpr{"on-init", nil, 1}
 
 		s := bufio.NewScanner(c)
 		for s.Scan() {

doc.md

@@ -239,6 +239,7 @@ The following special shell commands are used to customize the behavior of lf wh
 	on-cd
 	on-focus-gained
 	on-focus-lost
+	on-init
 	on-select
 	on-redraw
 	on-quit
@@ -1143,6 +1144,10 @@ This shell command can be defined to be executed when the terminal gains focus.
 
 This shell command can be defined to be executed when the terminal loses focus.
 
+## on-init
+
+This shell command can be defined to be executed after initializing and connecting to the server.
+
 ## on-select
 
 This shell command can be defined to be executed after the selection changes.

doc.txt

@@ -230,6 +230,7 @@ of lf when defined:
     on-cd
     on-focus-gained
     on-focus-lost
+    on-init
     on-select
     on-redraw
     on-quit
@@ -1262,6 +1263,11 @@ on-focus-lost
 This shell command can be defined to be executed when the terminal loses
 focus.
 
+on-init
+
+This shell command can be defined to be executed after initializing and
+connecting to the server.
+
 on-select
 
 This shell command can be defined to be executed after the selection

eval.go

@@ -600,6 +600,12 @@ func onFocusLost(app *app) {
 	}
 }
 
+func onInit(app *app) {
+	if cmd, ok := gOpts.cmds["on-init"]; ok {
+		cmd.eval(app, nil)
+	}
+}
+
 func onRedraw(app *app) {
 	if cmd, ok := gOpts.cmds["on-redraw"]; ok {
 		cmd.eval(app, nil)
@@ -1801,6 +1807,8 @@ func (e *callExpr) eval(app *app, args []string) {
 		onFocusGained(app)
 	case "on-focus-lost":
 		onFocusLost(app)
+	case "on-init":
+		onInit(app)
 	case "cmd-insert":
 		if len(e.args) == 0 {
 			return

lf.1

@@ -1,6 +1,6 @@
 .\" Automatically generated by Pandoc 2.11.4
 .\"
-.TH "LF" "1" "2024-11-01" "" "DOCUMENTATION"
+.TH "LF" "1" "2024-11-06" "" "DOCUMENTATION"
 .hy
 .SH NAME
 .PP
@@ -256,6 +256,7 @@ pre-cd
 on-cd
 on-focus-gained
 on-focus-lost
+on-init
 on-select
 on-redraw
 on-quit
@@ -1262,6 +1263,10 @@ focus.
 .PP
 This shell command can be defined to be executed when the terminal loses
 focus.
+.SS on-init
+.PP
+This shell command can be defined to be executed after initializing and
+connecting to the server.
 .SS on-select
 .PP
 This shell command can be defined to be executed after the selection