Adding upstream version 2.6.3.

Signed-off-by: Daniel Baumann <daniel@debian.org>

cmd/editorconfig/main.go

@@ -0,0 +1,74 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"log"
+	"os"
+
+	"gopkg.in/ini.v1"
+
+	"github.com/editorconfig/editorconfig-core-go/v2"
+)
+
+// version indicates the current version number.
+var version = "dev"
+
+func main() {
+	var (
+		configName      string
+		configVersion   string
+		showVersionFlag bool
+	)
+
+	flag.StringVar(&configName, "f", editorconfig.ConfigNameDefault, "Specify conf filename other than '.editorconfig'")
+	flag.StringVar(&configVersion, "b", "", "Specify version (used by devs to test compatibility)")
+	flag.BoolVar(&showVersionFlag, "v", false, "Display version information")
+	flag.BoolVar(&showVersionFlag, "version", false, "Display version information")
+	flag.Parse()
+
+	if showVersionFlag {
+		fmt.Printf("EditorConfig Core Go, Version %s\n", version) //nolint:forbidigo
+		os.Exit(0)
+	}
+
+	rest := flag.Args()
+
+	if len(rest) < 1 {
+		flag.Usage()
+		os.Exit(1)
+	}
+
+	config := &editorconfig.Config{
+		Name:     configName,
+		Version:  configVersion,
+		Graceful: false,
+	}
+
+	if len(rest) > 1 {
+		config.Parser = editorconfig.NewCachedParser()
+	}
+
+	for _, file := range rest {
+		def, err := config.Load(file)
+		if err != nil {
+			log.Fatal(err)
+		}
+
+		iniFile := ini.Empty()
+		ini.PrettyFormat = false
+
+		if len(rest) < 2 {
+			def.Selector = ini.DefaultSection
+		} else {
+			def.Selector = file
+		}
+
+		def.InsertToIniFile(iniFile)
+
+		_, err = iniFile.WriteTo(os.Stdout)
+		if err != nil {
+			log.Fatal(err)
+		}
+	}
+}