techknowlogick
b868d30434
Co-authored-by: techknowlogick <hello@techknowlogick.com> Co-committed-by: techknowlogick <hello@techknowlogick.com>
53 lines
1.4 KiB
Go
53 lines
1.4 KiB
Go
// Copyright 2021 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package flags
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import (
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"fmt"
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"strings"
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"code.gitea.io/tea/modules/utils"
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"github.com/urfave/cli/v2"
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)
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// CsvFlag is a wrapper around cli.StringFlag, with an added GetValues() method
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// to retrieve comma separated string values as a slice.
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type CsvFlag struct {
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cli.StringFlag
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AvailableFields []string
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}
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// NewCsvFlag creates a CsvFlag, while setting its usage string and default values
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func NewCsvFlag(name, usage string, aliases, availableValues, defaults []string) *CsvFlag {
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var availableDesc string
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if len(availableValues) != 0 {
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availableDesc = " Available values:"
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}
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return &CsvFlag{
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AvailableFields: availableValues,
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StringFlag: cli.StringFlag{
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Name: name,
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Aliases: aliases,
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Value: strings.Join(defaults, ","),
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Usage: fmt.Sprintf(`Comma-separated list of %s.%s
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%s
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`, usage, availableDesc, strings.Join(availableValues, ",")),
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},
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}
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}
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// GetValues returns the value of the flag, parsed as a commaseparated list
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func (f CsvFlag) GetValues(ctx *cli.Context) ([]string, error) {
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val := ctx.String(f.Name)
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selection := strings.Split(val, ",")
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if f.AvailableFields != nil && val != "" {
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for _, field := range selection {
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if !utils.Contains(f.AvailableFields, field) {
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return nil, fmt.Errorf("Invalid field '%s'", field)
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}
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}
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}
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return selection, nil
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}
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