command

utils/utils.go

@@ -0,0 +1,47 @@
+package utils
+
+import (
+	"embed"
+	"os"
+	"os/exec"
+	"strings"
+)
+
+//go:embed assets/*
+var FS embed.FS
+
+func Exec(args ...string) error {
+	fArgs := []string{"-c"}
+	if len(args) > 0 {
+		fArgs = append(fArgs, args...)
+	}
+	cmd := exec.Command("bash", fArgs...)
+	cmd.Stdin = os.Stdin
+	cmd.Stderr = os.Stderr
+
+	return cmd.Run()
+}
+
+func ReadFS(filePath string) (string, error) {
+	b, err := FS.ReadFile(filePath)
+	return string(b), err
+}
+
+func Extract(content string, key string) (string, bool) {
+	key = key + ": "
+	idx := strings.Index(content, key)
+	if idx == -1 {
+		return "", false
+	}
+
+	// start right after "host: "
+	start := idx + len(key)
+
+	// stop at end of line
+	end := strings.Index(content[start:], "\n")
+	if end == -1 {
+		return strings.TrimSpace(content[start:]), true
+	}
+
+	return strings.TrimSpace(content[start : start+end]), true
+}