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main.go
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main.go
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package main
import (
"fmt"
"os"
"path/filepath"
)
func main() {
if len(os.Args) != 5 {
fmt.Println("Unexpected number of arguments:", len(os.Args)-1)
fmt.Println("Usage: <input file> <types target file> <generator target file> <generator package>")
os.Exit(1)
}
inputFile := os.Args[1]
typesTargetFile := os.Args[2]
generatorTargetFile := os.Args[3]
targetPackage := os.Args[4]
absTypesTargetFile, err := filepath.Abs(typesTargetFile)
if err != nil {
fmt.Println(err)
os.Exit(1)
}
absGeneratorTargetFile, err := filepath.Abs(generatorTargetFile)
if err != nil {
fmt.Println(err)
os.Exit(1)
}
fmt.Println("writing generators to", absGeneratorTargetFile)
fmt.Println("writing types to", absTypesTargetFile)
err = run(inputFile, typesTargetFile, generatorTargetFile, targetPackage)
if err != nil {
fmt.Println(err)
os.Exit(1)
}
}
func run(inputFile string, typesTargetFile string, generatorTargetFile string, targetPackage string) error {
data, err := os.ReadFile(inputFile)
if err != nil {
return err
}
events, err := parseEventDefinitionSetForFile(inputFile, string(data))
if err != nil {
return err
}
typesCode, err := generateTypes(events)
if err != nil {
return err
}
generatorCode, err := generateParsers(targetPackage, events)
if err != nil {
return err
}
err = os.WriteFile(typesTargetFile, []byte(typesCode), 0644)
if err != nil {
return err
}
err = os.WriteFile(generatorTargetFile, []byte(generatorCode), 0644)
if err != nil {
return err
}
return nil
}