List 7z files

listSevenZipFiles.go

package main

import (
	"regexp"
	"os"
	"os/exec"
)

var pattern = regexp.MustCompile(`(?m)^Path = (.+)$`)

// shell version: 7z l path.7z -ba -slt | grep -oE 'Path = .*' | awk -F' = ' '{print $2}'
func list7zFiles(path string) ([]string, error) {
	if _, err := os.Stat(path); err != nil {
		return nil, err
	}
	
	// -slt switch since v15.xx
	cmd := exec.Command("7z", "l", path, "-ba", "-slt")
	output, err := cmd.Output()
	if err != nil {
		return nil, err
	}
	matches := pattern.FindAllSubmatch(output, -1)
	files := make([]string, len(matches))
	for i, match := range matches {
		files[i] = string(match[1])
	}
	return files, nil
}