repostatus/unix.go

// This is a simple example
package repostatus

import 	(
	"os"
	"os/exec"
	"strings"
	"regexp"
	"errors"

	"go.wit.com/log"
)

func fullpath(repo string) string {
	return "/home/jcarr/go/src/" + repo
}

func run(path string, thing string, cmdline string) string {
	parts := strings.Split(cmdline, " ")
	// Create the command
	cmd := exec.Command(thing, parts...)

	// Set the working directory
	cmd.Dir = fullpath(path)

	// Execute the command
	output, err := cmd.CombinedOutput()
	if err != nil {
		log.Error(err, "cmd error'd out", parts)
		return ""
	}

	tmp := string(output)
	tmp = strings.TrimSpace(tmp)

	// Print the output
	log.Log(WARN, "run()", path, thing, cmdline, "=", tmp)
	return tmp
}

// goes in one directory so it gets remote branch names
func listFiles(directory string) []string {
	var files []string
	fileInfo, err := os.ReadDir(directory)
	if err != nil {
		log.Error(err)
		return nil
	}

	for _, file := range fileInfo {
		if file.IsDir() {
			dirname := file.Name()
			newdir, _ := os.ReadDir(directory + "/" + dirname)
			for _, file := range newdir {
				if ! file.IsDir() {
					files = append(files, dirname + "/" + file.Name())
				}
			}
		} else {
			files = append(files, file.Name())
		}
	}

	return files
}

/*
// string handling examples that might be helpful for normalizeInt()
isAlpha := regexp.MustCompile(`^[A-Za-z]+$`).MatchString

for _, username := range []string{"userone", "user2", "user-three"} {
    if !isAlpha(username) {
        log.Log(GUI, "%q is not valid\n", username)
    }
}

const alpha = "abcdefghijklmnopqrstuvwxyz"

func alphaOnly(s string) bool {
   for _, char := range s {
      if !strings.Contains(alpha, strings.ToLower(string(char))) {
         return false
      }
   }
   return true
}
*/

func normalizeVersion(s string) string {
	// reg, err := regexp.Compile("[^a-zA-Z0-9]+")
	parts := strings.Split(s, "-")
	if len(parts) == 0 { return "" }
	reg, err := regexp.Compile("[^0-9.]+")
	if err != nil {
		log.Log(WARN, "normalizeVersion() regexp.Compile() ERROR =", err)
		return parts[0]
	}
	clean := reg.ReplaceAllString(parts[0], "")
	log.Log(WARN, "normalizeVersion() s =", clean)
	return clean
}

func splitVersion(version string) (a, b, c string) {
	tmp := normalizeVersion(version)
	parts := strings.Split(tmp, ".")
	switch len(parts) {
	case 1:
		return parts[0], "", ""
	case 2:
		return parts[0], parts[1], ""
	default:
		return parts[0], parts[1], parts[2]
	}
}

func runCmd(path string, parts []string) (error, bool, string) {
	if len(parts) == 0 {
		log.Warn("command line was empty")
		return errors.New("empty"), false, ""
	}
	if parts[0] == "" {
		log.Warn("command line was empty")
		return errors.New("empty"), false, ""
	}
	thing := parts[0]
	parts = parts[1:]

	log.Info("path =", path, "thing =", thing, "cmdline =", parts)
	// Create the command
	cmd := exec.Command(thing, parts...)

	// Set the working directory
	cmd.Dir = fullpath(path)

	// Execute the command
	output, err := cmd.CombinedOutput()
	if err != nil {
		log.Error(err)
		log.Warn("output was", output)
		log.Warn("cmd exited with error", err)
		return err, false, string(output)
	}

	tmp := string(output)
	tmp = strings.TrimSpace(tmp)

	// Print the output
	return nil, true, tmp
}