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package config
import "fmt"
type Group struct {
Group string
Feeds []configGroupFeed
}
type configGroupFeed struct {
Target *string
Feed `yaml:",inline"`
Group `yaml:",inline"`
}
func (grpFeed *configGroupFeed) isGroup() bool {
return grpFeed.Group.Group != ""
}
func (grpFeed *configGroupFeed) isFeed() bool {
return grpFeed.Name != ""
}
func (grpFeed *configGroupFeed) target() string {
if grpFeed.Target != nil {
return *grpFeed.Target
}
if grpFeed.Name != "" {
return grpFeed.Name
}
return grpFeed.Group.Group
}
func appTarget(target, app string) string {
if target == "" {
return app
}
if app == "" {
return target
}
return target + "/" + app
}
// Parse the group structure and populate the `Target` fields in the feeds
func buildFeeds(cfg []configGroupFeed, target string, feeds Feeds) error {
for _, f := range cfg {
target := appTarget(target, f.target())
switch {
case f.isFeed() && f.isGroup():
return fmt.Errorf("Entry with Target %s is both a Feed and a group", target)
case f.isFeed():
name := f.Feed.Name
if _, ok := feeds[name]; !ok {
return fmt.Errorf("Duplicate Feed Name '%s'", name)
}
f.Feed.Target = target
feeds[name] = &f.Feed
case f.isGroup():
if err := buildFeeds(f.Group.Feeds, target, feeds); err != nil {
return err
}
}
}
return nil
}
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