${escapeXml(item.title)}

[{"_1":2,"_3":-5,"_4":-5},"loaderData",{"_5":6,"_7":8,"_9":10},"actionData","errors","root",{"_204":205,"_206":207},"routes/_app.x.$handle.$name",{"_97":96,"_32":45,"_105":87,"_27":106,"_13":14,"_107":-5,"_11":108,"_109":110,"_111":112,"_113":114,"_115":116,"_20":-5,"_117":-5,"_118":-5,"_119":25,"_120":121,"_122":59,"_123":-5,"_124":-5,"_125":126},"routes/_app.x.$handle.$name.branch.$branch.version.$version.diff",{"_11":12,"_13":14,"_15":16,"_17":-5,"_18":-5},"project",{"_43":44,"_32":45,"_38":46,"_47":-5,"_48":25,"_49":50,"_51":50,"_52":53,"_54":-5,"_18":55,"_56":57,"_58":59,"_60":-5,"_61":-5,"_62":63,"_64":65,"_66":-5,"_67":-5,"_68":-5,"_69":-5,"_70":71,"_72":71,"_73":74,"_75":74,"_76":74,"_77":71,"_78":71,"_79":80,"_81":82,"_83":84,"_85":25},"version",14,"changes",[19],"aiChatInfo","userId",{"_20":21,"_22":23,"_24":25,"_26":25,"_27":28,"_29":28},"file",{"_30":31,"_32":28,"_33":34,"_35":37,"_38":39,"_40":14,"_41":42,"_24":25},"previous",{"_30":31,"_32":28,"_33":34,"_35":36},"deleted",false,"deletedHere","path","scraper.ts","latestPath","fileId","01a0560d-6ef3-71ba-96df-c2b69e1f4e8e","name","fileType","script","content","import { blob } from \"https://esm.town/v/std/blob/main.ts\";\nimport { load } from \"npm:cheerio@1.0.0\";\n\nconst HOME_URL = \"https://andymatuschak.org/\";\nconst CACHE_KEY = \"andy-matuschak-writing-feed\";\nconst INCLUDED_HOSTS = new Set([\n \"andymatuschak.org\",\n \"www.andymatuschak.org\",\n \"numinous.productions\",\n \"klr.tumblr.com\",\n]);\n\nexport interface FeedItem {\n title: string;\n url: string;\n guid?: string;\n date: string | null;\n summary: string | null;\n}\n\ninterface Cache {\n lastCheck: string | null;\n items: FeedItem[];\n}\n\nasync function fetchText(url: string): Promise {\n const response = await fetch(url, {\n headers: { \"User-Agent\": \"Listenly custom RSS feed (+https://listenly.io)\" },\n });\n if (!response.ok) throw new Error(`${url}: HTTP ${response.status}`);\n return await response.text();\n}\n\nasync function readCache(): Promise {\n return (await blob.getJSON(CACHE_KEY)) ?? { lastCheck: null, items: [] };\n}\n\nfunction scrapeHomepage(html: string): FeedItem[] {\n const $ = load(html);\n const items = new Map();\n\n for (const element of $(\"a[href]\").toArray()) {\n const anchor = $(element);\n const heading = anchor.find(\"h3\").first();\n if (!heading.length || anchor.find(\"img.Locked\").length) continue;\n\n const href = anchor.attr(\"href\");\n if (!href) continue;\n const url = new URL(href, HOME_URL);\n url.hash = \"\";\n\n if (!INCLUDED_HOSTS.has(url.hostname)) continue;\n if (url.hostname.endsWith(\"andymatuschak.org\") && url.pathname === \"/scrying-pen\") continue;\n\n const title = heading.text().replace(/\\s+/g, \" \").trim();\n const summary = heading.next(\"p\").text().replace(/\\s+/g, \" \").trim();\n if (!title) continue;\n\n const canonicalUrl = url.href;\n items.set(canonicalUrl, {\n title,\n url: canonicalUrl,\n guid: canonicalUrl,\n date: null,\n summary: summary || null,\n });\n }\n\n const result = [...items.values()];\n if (result.length < 25 || result.length > 45) {\n throw new Error(`homepage selection returned unexpected count: ${result.length}`);\n }\n return result;\n}\n\nexport async function refresh(): Promise {\n const items = scrapeHomepage(await fetchText(HOME_URL));\n await blob.setJSON(CACHE_KEY, { lastCheck: new Date().toISOString(), items } satisfies Cache);\n}\n\nexport async function lastChecked(): Promise {\n const value = (await readCache()).lastCheck;\n const parsed = value ? Date.parse(value) : Number.NaN;\n return Number.isNaN(parsed) ? 0 : parsed;\n}\n\nexport async function fetchItems(): Promise {\n return (await readCache()).items;\n}\n\nfunction escapeXml(value: string): string {\n return value.replace(/&/g, \"&\").replace(//g, \">\")\n .replace(/\"/g, \""\").replace(/'/g, \"'\");\n}\n\nexport function buildRss(items: FeedItem[], selfUrl: string): string {\n const body = items.map((item) => {\n const summary = item.summary ? `${escapeXml(item.summary)}` : \"\";\n const contentUrl = item.contentPath ? new URL(item.contentPath, selfUrl).href : item.url;\n return `\n ${escapeXml(item.title)}\n ${escapeXml(contentUrl)}\n ${escapeXml(item.guid ?? item.url)}\n ${summary}\n `;\n }).join(\"\\n \");\n\n return `\n\n \n Andy Matuschak: selected public writing\n ${HOME_URL}\n Public essays and authored writing selected from Andy Matuschak's homepage. Locked posts, server-blocked hosts, notes, podcasts, and interactive products are excluded.\n en-us\n \n ${body}\n \n`;\n}","import { blob } from \"https://esm.town/v/std/blob/main.ts\";\nimport { load } from \"npm:cheerio@1.0.0\";\n\nconst HOME_URL = \"https://andymatuschak.org/\";\nconst CACHE_KEY = \"andy-matuschak-writing-feed\";\nconst INCLUDED_HOSTS = new Set([\n \"andymatuschak.org\",\n \"www.andymatuschak.org\",\n \"numinous.productions\",\n \"klr.tumblr.com\",\n]);\n\nexport interface FeedItem {\n title: string;\n url: string;\n guid?: string;\n date: string | null;\n summary: string | null;\n}\n\ninterface Cache {\n lastCheck: string | null;\n items: FeedItem[];\n}\n\nasync function fetchText(url: string): Promise {\n const response = await fetch(url, {\n headers: { \"User-Agent\": \"Listenly custom RSS feed (+https://listenly.io)\" },\n });\n if (!response.ok) throw new Error(`${url}: HTTP ${response.status}`);\n return await response.text();\n}\n\nasync function readCache(): Promise {\n return (await blob.getJSON(CACHE_KEY)) ?? { lastCheck: null, items: [] };\n}\n\nfunction scrapeHomepage(html: string): FeedItem[] {\n const $ = load(html);\n const items = new Map();\n\n for (const element of $(\"a[href]\").toArray()) {\n const anchor = $(element);\n const heading = anchor.find(\"h3\").first();\n if (!heading.length || anchor.find(\"img.Locked\").length) continue;\n\n const href = anchor.attr(\"href\");\n if (!href) continue;\n const url = new URL(href, HOME_URL);\n url.hash = \"\";\n\n if (!INCLUDED_HOSTS.has(url.hostname)) continue;\n if (url.hostname.endsWith(\"andymatuschak.org\") && url.pathname === \"/scrying-pen\") continue;\n\n const title = heading.text().replace(/\\s+/g, \" \").trim();\n const summary = heading.next(\"p\").text().replace(/\\s+/g, \" \").trim();\n if (!title) continue;\n\n const canonicalUrl = url.href;\n items.set(canonicalUrl, {\n title,\n url: canonicalUrl,\n guid: canonicalUrl,\n date: null,\n summary: summary || null,\n });\n }\n\n const result = [...items.values()];\n if (result.length < 25 || result.length > 45) {\n throw new Error(`homepage selection returned unexpected count: ${result.length}`);\n }\n return result;\n}\n\nexport async function refresh(): Promise {\n const items = scrapeHomepage(await fetchText(HOME_URL));\n await blob.setJSON(CACHE_KEY, { lastCheck: new Date().toISOString(), items } satisfies Cache);\n}\n\nexport async function lastChecked(): Promise {\n const value = (await readCache()).lastCheck;\n const parsed = value ? 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Those three feed items use Tumblr's official AMP pages for content while retaining their canonical article URLs as stable GUIDs.\n\n`refresh.ts` updates the cache daily. `main.ts` also refreshes a cache older than six hours and serves the last good copy if the homepage is temporarily unavailable.\n",[163],"pulls","branches","forks","envVars",{"_176":63,"_178":63},"connections",{"_176":63,"_177":63},"count","unfilledCount","emptyCount",{"_43":162,"_32":163,"_30":164,"_135":-5,"_41":42,"_40":144,"_137":25,"_38":197,"_13":166,"_33":20,"_35":167,"_24":25,"_140":-5,"_185":198,"_27":199},{"_43":154,"_32":155,"_30":57,"_135":-5,"_41":42,"_40":156,"_137":25,"_38":194,"_13":136,"_33":158,"_35":159,"_24":25,"_140":160,"_185":195,"_27":196},{"_43":146,"_32":147,"_30":148,"_135":-5,"_41":42,"_40":149,"_137":59,"_38":191,"_13":136,"_33":151,"_35":152,"_24":25,"_140":-5,"_185":192,"_27":193},{"_43":142,"_32":28,"_30":31,"_135":-5,"_41":42,"_40":14,"_137":25,"_38":188,"_13":144,"_33":34,"_35":37,"_24":25,"_140":-5,"_185":189,"_27":190},{"_43":132,"_32":133,"_30":134,"_135":-5,"_41":42,"_40":136,"_137":59,"_38":184,"_13":63,"_33":34,"_35":139,"_24":25,"_140":-5,"_185":186,"_27":187},["D",1788150116030],"children",[],[133],["D",1788238878032],[],[28],["D",1788150278393],[],[147],["D",1788192508235],[],[155],["D",1788192155915],[],[163],["D",1788150116030],{"_97":96,"_104":100},{"_97":96,"_98":-5,"_99":100,"_18":55,"_101":102,"_103":25},{"_13":86,"_32":87,"_43":42,"_88":44,"_89":-5,"_90":-5,"_91":-5,"_92":-5,"_93":-5,"_94":45,"_95":96},"ctx",{"_79":-5,"_124":237,"_238":239,"_240":241,"_242":25,"_243":25,"_244":25,"_245":59,"_246":-5,"_247":-7,"_248":-7,"_249":63,"_250":25,"_251":25,"_252":-5,"_253":25,"_254":25,"_255":25,"_256":-5},"ENV",{"_208":209,"_210":211,"_212":87,"_213":214,"_215":216,"_217":218,"_219":220,"_221":222,"_223":224,"_225":226,"_227":228,"_229":230,"_231":232,"_233":234,"_235":236},"REACT_APP_SENTRY_DSN","https://586020d86f05489db63a554690acf1e9@o1398359.ingest.sentry.io/6724499","RENDER_GIT_COMMIT","e87eb04e707cf64e7e532c8e8ec395f209e17f15","RENDER_GIT_BRANCH","POSTHOG_API_TOKEN","phc_nmoyuAkStEZuUp69rYlg1DZgrIt19Gx0Y4Hwf8tGgJP","POSTHOG_API_HOST","https://wart.val.town","WEB_API_TEMPLATE","https://{val}.web.val.run","APP_URL","https://www.val.town","MODULE_URL","https://esm.town","VANITY_WEB_API_TEMPLATE","https://{label}.val.run/","DENOLS_URL","https://lsp.val.town","NODE_ENV","production","CLOUDFLARE_TURNSTILE_SITE_KEY","0x4AAAAAACtaIZJH7s9rBMZ6","GOOGLE_CLIENT_ID","875989696899-jtsqkhlbdv5jrlsk8631p7ipjg3c6o62.apps.googleusercontent.com","STRIPE_PUBLISHABLE_KEY","pk_live_51N2zvWEpZTTLipIkVEwXrUG9AT0yeOOEYxszarZT1jpsZV58Ly6wlg3SltZpHN26CUalOBmUSY7adQRQiSkCZz2500qSXNkf8Y","API_URL","https://api.val.town",[],"preferencesKeybindings","default","preferencesTheme","light","preferencesFixers","preferencesCopilot","preferencesSelectionAi","preferencesCloseBrackets","preferencesChatPanelState","preferencesDprint","preferencesDenofmt","notificationCount","flagDenols","isBusinessOrgMember","businessOrgHandle","isBusinessOrgAdmin","isHigherTownieTier","navCollapsed","currentOrgId"]

Diff · v14