hasheddan
a062611ecf
Refactors usageOnMissing option to not run parent commands after printing usage when a child node is missing. Signed-off-by: hasheddan <georgedanielmangum@gmail.com>
44 lines
877 B
Go
44 lines
877 B
Go
package kong
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import (
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"fmt"
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"strings"
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)
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// ParseError is the error type returned by Kong.Parse().
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//
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// It contains the parse Context that triggered the error.
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type ParseError struct {
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error
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Context *Context
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}
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// Cause returns the original cause of the error.
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func (p *ParseError) Cause() error { return p.error }
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type missingChildError struct {
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missing []string
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}
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func (m *missingChildError) Error() string {
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if len(m.missing) > 5 {
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m.missing = append(m.missing[:5], "...")
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}
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if len(m.missing) == 1 {
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return fmt.Sprintf("expected %s", m.missing[0])
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}
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return fmt.Sprintf("expected one of %s", strings.Join(m.missing, ", "))
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}
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func newMissingChildError(missing []string) *missingChildError {
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return &missingChildError{missing}
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}
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func isMissingChildError(err error) bool {
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if err == nil {
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return false
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}
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_, ok := err.(*missingChildError)
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return ok
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}
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