46 lines
829 B
Go
46 lines
829 B
Go
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// +build darwin freebsd linux netbsd openbsd
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package main
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import (
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"bytes"
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"errors"
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"log"
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"os"
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"os/exec"
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"path/filepath"
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"strings"
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)
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func configFile() (string, error) {
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dir, err := configDir()
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if err != nil {
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return "", err
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}
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return filepath.Join(dir, ".packerconfig"), nil
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}
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func configDir() (string, error) {
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// First prefer the HOME environmental variable
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if home := os.Getenv("HOME"); home != "" {
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log.Printf("Detected home directory from env var: %s", home)
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return home, nil
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}
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// If that fails, try the shell
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var stdout bytes.Buffer
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cmd := exec.Command("sh", "-c", "eval echo ~$USER")
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cmd.Stdout = &stdout
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if err := cmd.Run(); err != nil {
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return "", err
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}
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result := strings.TrimSpace(stdout.String())
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if result == "" {
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return "", errors.New("blank output")
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}
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return result, nil
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}
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