8d4d7ce7a7
- Global options -v/-vv/-vvv, -q, --ansi/--no-ansi, -n and --env on every command; PeekGlobals reads them before config loads, OnGlobals hooks re-apply them after parsing (diary.ApplyGlobals in the generated main) - Bare binary, --help and list print the Artisan list with the version header from BuildVersion and namespace blocks - Execute runs the root through fang (no version, man page or completions) and returns 0, 1 or 2; Fail renders errors before the root exists - NewRoot rejects duplicate command names (ErrDuplicateCommand) and flags that reuse a global option (ErrReservedFlag) - Generated main and summer use PeekGlobals, compass.Open with --env, diary.FromGlobals and bonfire.Execute; docs checker knows the globals
53 lines
1.2 KiB
Go
53 lines
1.2 KiB
Go
package bonfire
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import (
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"errors"
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"fmt"
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"io"
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"strings"
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)
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// UsageError marks a mistake in how a command was called: an unknown
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// command or flag, or a wrong number of arguments. Execute returns ExitUsage
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// for it.
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type UsageError struct {
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Err error
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}
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func (e *UsageError) Error() string { return e.Err.Error() }
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func (e *UsageError) Unwrap() error { return e.Err }
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// Usage wraps err as a UsageError; nil stays nil.
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func Usage(err error) error {
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if err == nil {
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return nil
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}
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var ue *UsageError
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if errors.As(err, &ue) {
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return err
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}
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return &UsageError{Err: err}
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}
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// isUsage reports a UsageError in the chain or cobra's unknown command error.
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func isUsage(err error) bool {
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var ue *UsageError
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if errors.As(err, &ue) {
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return true
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}
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return strings.HasPrefix(err.Error(), "unknown command")
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}
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// RenderError writes err to w as the console error block: a blank line,
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// " ERROR <message>" and a blank line. name is the root name of the binary
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// (summer, or the application binary's name).
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func RenderError(w io.Writer, name string, err error, g Globals) {
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if err == nil || w == nil {
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return
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}
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_ = name
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_ = g
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fmt.Fprintf(w, "\n ERROR %s\n\n", err.Error())
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}
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