637f38edca
Refactor to return errors instead of calling os.Exit() directly: - Add SilentExitError type for commands that signal status via exit code - Update mail.go runMailPeek() and runMailCheck() to return errors - Change Execute() to return int exit code instead of calling os.Exit() - Move os.Exit() call to main() where it belongs This improves testability, enables graceful shutdown, and follows Go conventions for library code. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
32 lines
835 B
Go
32 lines
835 B
Go
package cmd
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import "fmt"
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// SilentExitError signals that the command should exit with a specific code
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// without printing an error message. This is used for scripting purposes
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// where exit codes convey status (e.g., "no mail" = exit 1).
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type SilentExitError struct {
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Code int
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}
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func (e *SilentExitError) Error() string {
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return fmt.Sprintf("exit %d", e.Code)
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}
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// NewSilentExit creates a SilentExitError with the given exit code.
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func NewSilentExit(code int) *SilentExitError {
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return &SilentExitError{Code: code}
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}
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// IsSilentExit checks if an error is a SilentExitError and returns its code.
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// Returns 0 and false if err is nil or not a SilentExitError.
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func IsSilentExit(err error) (int, bool) {
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if err == nil {
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return 0, false
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}
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if se, ok := err.(*SilentExitError); ok {
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return se.Code, true
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}
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return 0, false
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}
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