mirror of https://github.com/miniflux/v2.git
59 lines
1.4 KiB
Go
59 lines
1.4 KiB
Go
// Copyright 2017 Frédéric Guillot. All rights reserved.
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// Use of this source code is governed by the Apache 2.0
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// license that can be found in the LICENSE file.
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package opml
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import (
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"bufio"
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"bytes"
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"encoding/xml"
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"log"
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)
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func Serialize(subscriptions SubcriptionList) string {
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var b bytes.Buffer
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writer := bufio.NewWriter(&b)
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writer.WriteString(xml.Header)
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opml := new(Opml)
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opml.Version = "2.0"
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for categoryName, subs := range groupSubscriptionsByFeed(subscriptions) {
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outline := Outline{Text: categoryName}
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for _, subscription := range subs {
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outline.Outlines = append(outline.Outlines, Outline{
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Title: subscription.Title,
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Text: subscription.Title,
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FeedURL: subscription.FeedURL,
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SiteURL: subscription.SiteURL,
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})
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}
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opml.Outlines = append(opml.Outlines, outline)
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}
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encoder := xml.NewEncoder(writer)
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encoder.Indent(" ", " ")
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if err := encoder.Encode(opml); err != nil {
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log.Println(err)
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return ""
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}
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return b.String()
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}
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func groupSubscriptionsByFeed(subscriptions SubcriptionList) map[string]SubcriptionList {
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groups := make(map[string]SubcriptionList)
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for _, subscription := range subscriptions {
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// if subs, ok := groups[subscription.CategoryName]; !ok {
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// groups[subscription.CategoryName] = SubcriptionList{}
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// }
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groups[subscription.CategoryName] = append(groups[subscription.CategoryName], subscription)
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}
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return groups
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}
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