mirror of https://github.com/go-gitea/gitea
119 lines
3.0 KiB
Go
119 lines
3.0 KiB
Go
// Copyright 2023 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package label
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import (
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"errors"
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"fmt"
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"strings"
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"code.gitea.io/gitea/modules/options"
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"gopkg.in/yaml.v3"
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)
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type labelFile struct {
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Labels []*Label `yaml:"labels"`
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}
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// ErrTemplateLoad represents a "ErrTemplateLoad" kind of error.
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type ErrTemplateLoad struct {
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TemplateFile string
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OriginalError error
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}
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// IsErrTemplateLoad checks if an error is a ErrTemplateLoad.
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func IsErrTemplateLoad(err error) bool {
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_, ok := err.(ErrTemplateLoad)
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return ok
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}
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func (err ErrTemplateLoad) Error() string {
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return fmt.Sprintf("failed to load label template file %q: %v", err.TemplateFile, err.OriginalError)
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}
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// LoadTemplateFile loads the label template file by given file name, returns a slice of Label structs.
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func LoadTemplateFile(fileName string) ([]*Label, error) {
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data, err := options.Labels(fileName)
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if err != nil {
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return nil, ErrTemplateLoad{fileName, fmt.Errorf("LoadTemplateFile: %w", err)}
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}
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if strings.HasSuffix(fileName, ".yaml") || strings.HasSuffix(fileName, ".yml") {
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return parseYamlFormat(fileName, data)
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}
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return parseLegacyFormat(fileName, data)
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}
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func parseYamlFormat(fileName string, data []byte) ([]*Label, error) {
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lf := &labelFile{}
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if err := yaml.Unmarshal(data, lf); err != nil {
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return nil, err
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}
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// Validate label data and fix colors
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for _, l := range lf.Labels {
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l.Color = strings.TrimSpace(l.Color)
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if len(l.Name) == 0 || len(l.Color) == 0 {
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return nil, ErrTemplateLoad{fileName, errors.New("label name and color are required fields")}
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}
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color, err := NormalizeColor(l.Color)
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if err != nil {
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return nil, ErrTemplateLoad{fileName, fmt.Errorf("bad HTML color code '%s' in label: %s", l.Color, l.Name)}
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}
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l.Color = color
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}
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return lf.Labels, nil
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}
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func parseLegacyFormat(fileName string, data []byte) ([]*Label, error) {
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lines := strings.Split(string(data), "\n")
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list := make([]*Label, 0, len(lines))
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for i := 0; i < len(lines); i++ {
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line := strings.TrimSpace(lines[i])
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if len(line) == 0 {
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continue
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}
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parts, description, _ := strings.Cut(line, ";")
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color, labelName, ok := strings.Cut(parts, " ")
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if !ok {
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return nil, ErrTemplateLoad{fileName, fmt.Errorf("line is malformed: %s", line)}
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}
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color, err := NormalizeColor(color)
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if err != nil {
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return nil, ErrTemplateLoad{fileName, fmt.Errorf("bad HTML color code '%s' in line: %s", color, line)}
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}
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list = append(list, &Label{
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Name: strings.TrimSpace(labelName),
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Color: color,
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Description: strings.TrimSpace(description),
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})
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}
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return list, nil
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}
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// LoadTemplateDescription loads the labels from a template file, returns a description string by joining each Label.Name with comma
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func LoadTemplateDescription(fileName string) (string, error) {
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var buf strings.Builder
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list, err := LoadTemplateFile(fileName)
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if err != nil {
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return "", err
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}
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for i := 0; i < len(list); i++ {
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if i > 0 {
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buf.WriteString(", ")
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}
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buf.WriteString(list[i].Name)
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}
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return buf.String(), nil
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}
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