pkg/dotenv/load_file.go - master - t3/cli

package dotenv

import (
	"bufio"
	"os"
	"path/filepath"
	"strings"
)

func LoadFile(file string) error {
	file, err := filepath.Abs(file)
	if err != nil {
		return err
	}

	f, err := os.Open(file)
	if err != nil {
		return err
	}
	defer f.Close()

	scanner := bufio.NewScanner(f)
	for scanner.Scan() {
		pair := strings.Split(scanner.Text(), "=")
		if len(pair) != 2 {
			continue
		}
		key := strings.TrimSpace(pair[0])
		val := strings.TrimSpace(pair[1])
		val = strings.Trim(val, "'\"")

		if len(key) == 0 {
			continue
		}

		if key[0] == '#' {
			continue
		}

		os.Setenv(key, val)
	}

	return scanner.Err()
}