grt.go

package grt

import (
	"io/ioutil"
	"log"
	"os"
	"path/filepath"
	"strings"

	"github.com/bitfield/script"
)

// ReplaceTokens replaces tokens in input file and outputs to new file
func ReplaceTokens(inputFilePath, outputFilePath, repoHost, repoOrg, repoName, newRepo string) {
	parts := strings.Split(newRepo, "/")
	newRepoHost := parts[0]
	newRepoOrg := parts[1]
	newRepoName := parts[2]
	// log.Printf("repoHost: %s, repoOrg: %s, repoName: %s, newRepoHost: %s, newRepoOrg: %s, newRepoName: %s\n", repoHost, repoOrg, repoName, newRepoHost, newRepoOrg, newRepoName)
	inplace := false

	if outputFilePath == "" {
		inplace = true
		tempFileH, err := ioutil.TempFile(filepath.Dir(inputFilePath), "")
		if err != nil {
			log.Fatal(err.Error())
		}
		outputFilePath = tempFileH.Name()
	}
	_, err := script.File(inputFilePath).Replace(repoHost, newRepoHost).Replace(repoOrg, newRepoOrg).Replace(repoName, newRepoName).WriteFile(outputFilePath)

	if err != nil {
		log.Fatal(err.Error())
	}

	if inplace {
		script.File(outputFilePath).Stdout()
		e := os.Rename(outputFilePath, inputFilePath)
		if e != nil {
			log.Fatal(e)
		}
	}
	log.Printf("Replaced tokens in %s and created %s\n", inputFilePath, outputFilePath)
}