40 lines
867 B
Go
40 lines
867 B
Go
package cliutil
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import (
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"fmt"
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"gopkg.in/urfave/cli.v2"
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)
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type usageError string
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func (ue usageError) Error() string {
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return string(ue)
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}
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func UsageError(format string, args ...interface{}) error {
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if len(args) == 0 {
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return usageError(format)
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} else {
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msg := fmt.Sprintf(format, args...)
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return usageError(msg)
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}
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}
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// Ensures exit with error code if actionFunc returns an error
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func ErrorHandler(actionFunc cli.ActionFunc) cli.ActionFunc {
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return func(ctx *cli.Context) error {
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err := actionFunc(ctx)
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if err != nil {
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if _, ok := err.(usageError); ok {
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msg := fmt.Sprintf("%s\nSee 'cloudflared %s --help'.", err.Error(), ctx.Command.FullName())
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return cli.Exit(msg, -1)
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}
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// os.Exits with error code if err is cli.ExitCoder or cli.MultiError
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cli.HandleExitCoder(err)
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err = cli.Exit(err.Error(), 1)
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}
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return err
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}
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}
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