76 lines
1.4 KiB
Go
76 lines
1.4 KiB
Go
package app
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import (
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"encoding/gob"
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"fmt"
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"log"
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"net"
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"os"
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)
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const (
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Query = 0
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Flush = 1
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)
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type Request struct {
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Request int
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Pattern string
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}
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type Response struct {
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Err error
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Actions ReadableMap
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}
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const SocketPath = "/run/reaction/reaction.sock"
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func SendAndRetrieve(data Request) Response {
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conn, err := net.Dial("unix", SocketPath)
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if err != nil {
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log.Fatalln("Error opening connection top daemon:", err)
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}
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err = gob.NewEncoder(conn).Encode(data)
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if err != nil {
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log.Fatalln("Can't send message:", err)
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}
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var response Response
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err = gob.NewDecoder(conn).Decode(&response)
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if err != nil {
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log.Fatalln("Invalid answer from daemon:", err)
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}
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return response
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}
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func usage(err string) {
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fmt.Println("Usage: reactionc")
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fmt.Println("Usage: reactionc flush <PATTERN>")
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log.Fatalln(err)
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}
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func CLI() {
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if len(os.Args) <= 1 {
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response := SendAndRetrieve(Request{Query, ""})
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if response.Err != nil {
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log.Fatalln("Received error from daemon:", response.Err)
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}
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fmt.Println(response.Actions.ToString())
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os.Exit(0)
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}
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switch os.Args[1] {
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case "flush":
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if len(os.Args) != 3 {
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usage("flush takes one <PATTERN> argument")
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}
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response := SendAndRetrieve(Request{Flush, os.Args[2]})
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if response.Err != nil {
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log.Fatalln("Received error from daemon:", response.Err)
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}
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os.Exit(0)
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default:
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usage("first argument must be `flush`")
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}
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}
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