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package main
import (
"encoding/json"
"fmt"
"io/ioutil"
"log"
"os"
"time"
"github.com/pelletier/go-toml"
)
func main() {
bytes, err := ioutil.ReadAll(os.Stdin)
if err != nil {
log.Fatalf("Error during TOML read: %s", err)
os.Exit(2)
}
tree, err := toml.Load(string(bytes))
if err != nil {
log.Fatalf("Error during TOML load: %s", err)
os.Exit(1)
}
typedTree := translate(*tree)
if err := json.NewEncoder(os.Stdout).Encode(typedTree); err != nil {
log.Fatalf("Error encoding JSON: %s", err)
os.Exit(3)
}
os.Exit(0)
}
func translate(tomlData interface{}) interface{} {
switch orig := tomlData.(type) {
case map[string]interface{}:
typed := make(map[string]interface{}, len(orig))
for k, v := range orig {
typed[k] = translate(v)
}
return typed
case *toml.Tree:
return translate(*orig)
case toml.Tree:
keys := orig.Keys()
typed := make(map[string]interface{}, len(keys))
for _, k := range keys {
typed[k] = translate(orig.GetPath([]string{k}))
}
return typed
case []*toml.Tree:
typed := make([]map[string]interface{}, len(orig))
for i, v := range orig {
typed[i] = translate(v).(map[string]interface{})
}
return typed
case []map[string]interface{}:
typed := make([]map[string]interface{}, len(orig))
for i, v := range orig {
typed[i] = translate(v).(map[string]interface{})
}
return typed
case []interface{}:
typed := make([]interface{}, len(orig))
for i, v := range orig {
typed[i] = translate(v)
}
return tag("array", typed)
case time.Time:
return tag("datetime", orig.Format("2006-01-02T15:04:05Z"))
case bool:
return tag("bool", fmt.Sprintf("%v", orig))
case int64:
return tag("integer", fmt.Sprintf("%d", orig))
case float64:
return tag("float", fmt.Sprintf("%v", orig))
case string:
return tag("string", orig)
}
panic(fmt.Sprintf("Unknown type: %T", tomlData))
}
func tag(typeName string, data interface{}) map[string]interface{} {
return map[string]interface{}{
"type": typeName,
"value": data,
}
}
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