feat: enhance podcast functionality and build pipeline

- Dynamically resolve image paths for podcast episodes in `episodes.11tydata.js`
- Add podcast metadata handling with inferred URLs for MP3 and transcripts
- Introduce search functionality with Lunr.js and a search index generator
- Update Eleventy path prefix handling to support environment variable override
- Add `.mp4` files to `.gitignore`
- Expand VSCode settings to include Markdown-Eleventy support and improved terminal history
- Add deployment script (`deploy.sh`) with remote rsync-based deployment and permission handling
- Adjust episode layout to use dynamic image paths and updated podcast metadata
- Add search and members page updates, including new URLs and search integration
- Update dependencies to include `html-to-text` and related packages for search indexing

content/episodes/episodes.11tydata.js

@@ -1,17 +1,83 @@
-const {seasonEpisodeFormat} = require('../../utils/filters');
+const {seasonEpisodeFormat, episodeNumber} = require('../../utils/filters');
+const fs = require('fs/promises');
+path = require('path')
 
 module.exports = {
   "layout": "episode",
   "tags":['episode'],
   "eleventyComputed": {
     "episode": "{{page.fileSlug | episodeNumber: episode}}",
-    "image": "{{page.url}}/../image.jpg",
-    "podcast": (data) => {
-      return {
-      "enclosureUrl": data.podcast.enclosureUrl ||`${data.site.cdn}/${seasonEpisodeFormat(null, data).toLowerCase()}.mp3`,
-      "transcriptUrl": data.podcast.transcriptUrl ||`${data.site.cdn}/${seasonEpisodeFormat(null, data).toLowerCase()}.srt`,
-      "title": data.podcast.title || `${seasonEpisodeFormat(null, data)}: ${data.title || "Episode " + data.episode}`,
-      "image" : data.podcast.image || data.image || "{{page.url}}/../image.jpg"
-    }}
+    "image": async (data) => {
+      const image_locations_promises = [
+        data.image,
+        `${data.page.filePathStem}.jpg`,
+        `${data.page.filePathStem}.png`,
+        '../image.jpg',
+        '../image.png',
+        '../../image.jpg',
+        '../../image.png'
+      ].filter(image_path=>image_path).map((image_path)=>
+        fs.access(path.resolve(data.page.inputPath, image_path))
+        .then(()=>path.resolve(data.page.filePathStem, image_path))
+        .catch(()=>null)
+      )
+      return (await Promise.all(image_locations_promises)).find(i=>i)
+    },
+    "podcast": podcastData
   }
+}
+
+async function podcastData (data) {
+  var file_stem
+  if (data.season === 1) {
+    file_stem = `ep${data.episode}`
+  } else {
+    file_stem = `${seasonEpisodeFormat(null, data).toLowerCase()}`
+  }
+  const mp3_exists_promise = new Promise ((resolve, reject) => {
+    if (data.podcast.enclosureUrl) {
+      resolve(data.podcast.enclosureUrl)
+    } else {
+      const url = `${data.site.cdn}/${file_stem}.mp3`
+      console.log(`Inferring URL @ ${url} for ${data.page.url}`)
+      fetch(url, { method: "HEAD" })
+      .then((res)=>{
+        if (res.ok) {
+          resolve(`${url}`)
+        } else {
+          reject(new Error(`No file at ${url}`));
+        }
+      })
+    }
+  }).catch((e)=>{return null})
+
+  const transcript_exists_promise = new Promise ((resolve, reject) => {
+    if (data.podcast.transcriptUrl) {
+      resolve(data.podcast.transcriptUrl)
+    } else {
+      const url = `${data.site.cdn}/${file_stem}.srt`
+      console.log(`Inferring URL @ ${url}`)
+      fetch(url, { method: "HEAD" })
+      .then((res)=>{
+        if (res.ok) {
+          resolve(`${url}`)
+        } else {
+          reject(new Error(`No file at ${url}`));
+        }
+      })
+    }
+  }).catch((e)=>{return null})
+
+  const result =  {
+    "enclosureUrl": await mp3_exists_promise,
+    "transcriptUrl": await transcript_exists_promise,
+    "title": data.podcast.title || `${seasonEpisodeFormat(null, data)}: ${data.title || "Episode " + data.episode}`,
+    "image" : data.podcast.image || data.image
+  }
+
+  if (result.enclosureUrl != null) {
+    return result
+  } else {
+    return false
+  } 
 }