mirror of https://github.com/coder/coder.git
132 lines
3.6 KiB
Go
132 lines
3.6 KiB
Go
package cli
|
|
|
|
import (
|
|
"errors"
|
|
"fmt"
|
|
"net/http"
|
|
"net/http/httptest"
|
|
|
|
"golang.org/x/xerrors"
|
|
|
|
"github.com/coder/coder/v2/codersdk"
|
|
"github.com/coder/serpent"
|
|
)
|
|
|
|
func (RootCmd) errorExample() *serpent.Command {
|
|
errorCmd := func(use string, err error) *serpent.Command {
|
|
return &serpent.Command{
|
|
Use: use,
|
|
Handler: func(inv *serpent.Invocation) error {
|
|
return err
|
|
},
|
|
}
|
|
}
|
|
|
|
// Make an api error
|
|
recorder := httptest.NewRecorder()
|
|
recorder.WriteHeader(http.StatusBadRequest)
|
|
resp := recorder.Result()
|
|
_ = resp.Body.Close()
|
|
resp.Request, _ = http.NewRequest(http.MethodPost, "http://example.com", nil)
|
|
apiError := codersdk.ReadBodyAsError(resp)
|
|
//nolint:errorlint,forcetypeassert
|
|
apiError.(*codersdk.Error).Response = codersdk.Response{
|
|
Message: "Top level sdk error message.",
|
|
Detail: "magic dust unavailable, please try again later",
|
|
Validations: []codersdk.ValidationError{
|
|
{
|
|
Field: "region",
|
|
Detail: "magic dust is not available in your region",
|
|
},
|
|
},
|
|
}
|
|
//nolint:errorlint,forcetypeassert
|
|
apiError.(*codersdk.Error).Helper = "Have you tried turning it off and on again?"
|
|
|
|
//nolint:errorlint,forcetypeassert
|
|
cpy := *apiError.(*codersdk.Error)
|
|
apiErrorNoHelper := &cpy
|
|
apiErrorNoHelper.Helper = ""
|
|
|
|
// Some flags
|
|
var magicWord serpent.String
|
|
|
|
cmd := &serpent.Command{
|
|
Use: "example-error",
|
|
Short: "Shows what different error messages look like",
|
|
Long: "This command is pretty pointless, but without it testing errors is" +
|
|
"difficult to visually inspect. Error message formatting is inherently" +
|
|
"visual, so we need a way to quickly see what they look like.",
|
|
Handler: func(inv *serpent.Invocation) error {
|
|
return inv.Command.HelpHandler(inv)
|
|
},
|
|
Children: []*serpent.Command{
|
|
// Typical codersdk api error
|
|
errorCmd("api", apiError),
|
|
|
|
// Typical cli error
|
|
errorCmd("cmd", xerrors.Errorf("some error: %w", errorWithStackTrace())),
|
|
|
|
// A multi-error
|
|
{
|
|
Use: "multi-error",
|
|
Handler: func(inv *serpent.Invocation) error {
|
|
return xerrors.Errorf("wrapped: %w", errors.Join(
|
|
xerrors.Errorf("first error: %w", errorWithStackTrace()),
|
|
xerrors.Errorf("second error: %w", errorWithStackTrace()),
|
|
xerrors.Errorf("wrapped api error: %w", apiErrorNoHelper),
|
|
))
|
|
},
|
|
},
|
|
{
|
|
Use: "multi-multi-error",
|
|
Short: "This is a multi error inside a multi error",
|
|
Handler: func(inv *serpent.Invocation) error {
|
|
return errors.Join(
|
|
xerrors.Errorf("parent error: %w", errorWithStackTrace()),
|
|
errors.Join(
|
|
xerrors.Errorf("child first error: %w", errorWithStackTrace()),
|
|
xerrors.Errorf("child second error: %w", errorWithStackTrace()),
|
|
),
|
|
)
|
|
},
|
|
},
|
|
{
|
|
Use: "validation",
|
|
Options: serpent.OptionSet{
|
|
serpent.Option{
|
|
Name: "magic-word",
|
|
Description: "Take a good guess.",
|
|
Required: true,
|
|
Flag: "magic-word",
|
|
Default: "",
|
|
Value: serpent.Validate(&magicWord, func(value *serpent.String) error {
|
|
return xerrors.Errorf("magic word is incorrect")
|
|
}),
|
|
},
|
|
},
|
|
Handler: func(i *serpent.Invocation) error {
|
|
_, _ = fmt.Fprint(i.Stdout, "Try setting the --magic-word flag\n")
|
|
return nil
|
|
},
|
|
},
|
|
{
|
|
Use: "arg-required <required>",
|
|
Middleware: serpent.Chain(
|
|
serpent.RequireNArgs(1),
|
|
),
|
|
Handler: func(i *serpent.Invocation) error {
|
|
_, _ = fmt.Fprint(i.Stdout, "Try running this without an argument\n")
|
|
return nil
|
|
},
|
|
},
|
|
},
|
|
}
|
|
|
|
return cmd
|
|
}
|
|
|
|
func errorWithStackTrace() error {
|
|
return xerrors.Errorf("function decided not to work, and it never will")
|
|
}
|