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feat(contentIndex): add flexible tag-based RSS feed generation

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Enable generating RSS feeds for specific tags via `rssTags` option
This commit is contained in:
Suryaansh Rai 2026-01-17 22:24:20 +05:30
parent 47433a9068
commit 7bfbb6016a
1 changed files with 20 additions and 12 deletions
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32
quartz/plugins/emitters/contentIndex.tsx
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@ -30,6 +30,7 @@ interface Options {
includeEmptyFiles: boolean includeEmptyFiles: boolean
includeTags: boolean includeTags: boolean
rssTagsLimit: number rssTagsLimit: number
rssTags: string[]
} }
const defaultOptions: Options = { const defaultOptions: Options = {
@ -41,6 +42,7 @@ const defaultOptions: Options = {
includeEmptyFiles: true, includeEmptyFiles: true,
includeTags: false, includeTags: false,
rssTagsLimit: 15, rssTagsLimit: 15,
rssTags: [],
} }
function generateSiteMap(cfg: GlobalConfiguration, idx: ContentIndexMap): string { function generateSiteMap(cfg: GlobalConfiguration, idx: ContentIndexMap): string {
@ -140,21 +142,27 @@ export const ContentIndex: QuartzEmitterPlugin<Partial<Options>> = (opts) => {
ext: ".xml", ext: ".xml",
}) })
if (opts?.includeTags && (opts.rssTagsLimit ?? 0) > 0) { if (opts?.includeTags) {
const tagCounts: Map<string, number> = new Map() let sortedTags: string[] = []
// Count tags from all non-empty files (unless includeEmptyFiles is true) if (opts.rssTags && opts.rssTags.length > 0) {
for (const [_, content] of linkIndex) { sortedTags = opts.rssTags
const tags = content.tags.flatMap(getAllSegmentPrefixes) } else if ((opts.rssTagsLimit ?? 0) > 0) {
for (const tag of new Set(tags)) { // Use Set to avoid double counting per file const tagCounts: Map<string, number> = new Map()
tagCounts.set(tag, (tagCounts.get(tag) ?? 0) + 1)
// Count tags from all non-empty files (unless includeEmptyFiles is true)
for (const [_, content] of linkIndex) {
const tags = content.tags.flatMap(getAllSegmentPrefixes)
for (const tag of new Set(tags)) { // Use Set to avoid double counting per file
tagCounts.set(tag, (tagCounts.get(tag) ?? 0) + 1)
}
} }
}
const sortedTags = Array.from(tagCounts.entries()) sortedTags = Array.from(tagCounts.entries())
.sort((a, b) => b[1] - a[1]) // Sort by frequency descending .sort((a, b) => b[1] - a[1]) // Sort by frequency descending
.slice(0, opts.rssTagsLimit) .slice(0, opts.rssTagsLimit)
.map(([tag]) => tag) .map(([tag]) => tag)
}
for (const tag of sortedTags) { for (const tag of sortedTags) {
const tagFilteredIndex = new Map( const tagFilteredIndex = new Map(