d2b09d854f
Implement a new error handling library based on pkg/errors. It provides stack saving on wrapping and exports some function to add stack saving also to external errors. It also implements custom zerolog error formatting without adding too much verbosity by just printing the chain error file:line without a full stack trace of every error. * Add a --detailed-errors options to print error with they full chain * Wrap all error returns. Use errors.WithStack to wrap without adding a new messsage and error.Wrap[f] to add a message. * Add golangci-lint wrapcheck to check that external packages errors are wrapped. This won't check that internal packages error are wrapped. But we want also to ensure this case so we'll have to find something else to check also these.
64 lines
1.2 KiB
Go
64 lines
1.2 KiB
Go
package errors
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import (
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"encoding/json"
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"fmt"
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"strings"
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)
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// copied from zerolog console writer since they aren't exported
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//nolint
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const (
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colorBlack = iota + 30
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colorRed
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colorGreen
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colorYellow
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colorBlue
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colorMagenta
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colorCyan
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colorWhite
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)
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// colorize returns the string s wrapped in ANSI code c, unless disabled is true.
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func colorize(s interface{}, c int, disabled bool) string {
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if disabled {
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return fmt.Sprintf("%s", s)
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}
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return fmt.Sprintf("\x1b[%dm%v\x1b[0m", c, s)
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}
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type errorFormat = struct {
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Error string
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Details []string
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}
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func FormatErrFieldValue(i interface{}) string {
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switch d := i.(type) {
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case []byte:
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var ed errorFormat
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if err := json.Unmarshal(d, &ed); err != nil {
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return fmt.Sprintf("error: %v", err)
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}
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var sb strings.Builder
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sb.WriteString(fmt.Sprintf("%s\n", ed.Error))
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if len(ed.Details) > 0 {
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sb.WriteString("error details:\n")
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for _, l := range ed.Details {
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sb.WriteString(fmt.Sprintf("%s\n", l))
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}
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}
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return colorize(sb.String(), colorRed, false)
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default:
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return colorize(fmt.Sprintf("%s", d), colorRed, false)
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}
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}
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func ErrorMarshalFunc(err error) interface{} {
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ef := errorFormat{
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Error: err.Error(),
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Details: PrintErrorDetails(err),
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}
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return ef
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}
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