add a shell command to replay

cmd/replay/replay.go

@@ -0,0 +1,68 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"io"
+	"log"
+	"os"
+	"time"
+
+	"golang.org/x/term"
+)
+
+type writeRecord struct {
+	Dur  time.Duration `json:"Duration"`
+	Data []byte        `json:"Data"`
+}
+
+func main() {
+	if len(os.Args) != 2 {
+		log.Fatalln("Usage: replay <recordfile>")
+	}
+
+	fp, err := os.Open(os.Args[1])
+
+	if err != nil {
+		log.Fatalln("Failed to open record file", err)
+	}
+
+	screen := struct {
+		io.Reader
+		io.Writer
+	}{os.Stdin, os.Stdout}
+
+	t := term.NewTerminal(screen, ">")
+
+	if t == nil {
+		log.Fatalln("Failed to create terminal")
+	}
+
+	w, h, err := term.GetSize(int(os.Stdout.Fd()))
+
+	if (w != 120) || (h != 36) {
+		fmt.Println("Set terminal window to 120x36")
+		os.Stdout.WriteString(`\e[8;50;100t`)
+	}
+	/* if err := term.SetSize(120, 36); err != nil {
+		log.Println("Failed to set terminal size", err)
+	} */
+
+	decoder := json.NewDecoder(fp)
+
+	if decoder == nil {
+		log.Fatalln("Failed to create JSON decoder")
+	}
+
+	for decoder.More() {
+		var record writeRecord
+
+		if err := decoder.Decode(&record); err != nil {
+			log.Println("Failed to decode record", err)
+			continue
+		}
+
+		time.Sleep(record.Dur)
+		t.Write(record.Data)
+	}
+}

cmd/replay/run.sh

@@ -0,0 +1,4 @@
+echo "Try to resize shell with shell command"
+printf '\e[8;36;120t'
+clear
+./replay $1

go.mod

@@ -23,5 +23,6 @@ require (
 	github.com/ugorji/go/codec v1.1.7 // indirect
 	golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9 // indirect
 	golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1 // indirect
+	golang.org/x/term v0.0.0-20210927222741-03fcf44c2211
 	gopkg.in/yaml.v2 v2.2.8 // indirect
 )

go.sum

@@ -51,6 +51,8 @@ golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1 h1:SrN+KX8Art/Sf4HNj6Zcz06G7VEz+7w9tdXTPOZ7+l4=
 golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/term v0.0.0-20210927222741-03fcf44c2211 h1:JGgROgKl9N8DuW20oFS5gxc+lE67/N3FcwmBPMe7ArY=
+golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=