[tools/docs:tweak] use duckduckgo favicon service

completions.js

@@ -43,7 +43,6 @@ completions.al = {
 completions.au = {
   alias:  "au",
   name:   "AUR",
-  favicon: "https://aur.archlinux.org/images/favicon.ico",
   search: "https://aur.archlinux.org/packages/?O=0&SeB=nd&outdated=&SB=v&SO=d&PP=100&do_Search=Go&K=",
   compl:  "https://aur.archlinux.org/rpc?type=suggest&arg=",
 }
@@ -127,7 +126,6 @@ completions.at.callback = (response) => {
 completions.cs = {
   alias:    "cs",
   name:     "chromestore",
-  favicon:  "https://www.google.com/images/icons/product/chrome_web_store-32.png",
   search:   "https://chrome.google.com/webstore/search/",
   compl:    googleCxURL("cs"),
   callback: googleCxCallback,
@@ -293,7 +291,6 @@ completions.do.callback = (response) => Object.entries(JSON.parse(response.text)
 completions.vw = {
   alias:  "vw",
   name:   "vimwiki",
-  favicon: "https://vignette.wikia.nocookie.net/vim/images/6/64/Favicon.ico",
   search: "https://vim.fandom.com/wiki/Special:Search?query=",
   compl:  "https://vim.fandom.com/api.php?action=opensearch&format=json&formatversion=2&namespace=0&limit=10&suggest=true&search=",
 }
@@ -892,7 +889,6 @@ completions.gd.callback = (response) => JSON.parse(response.text).results.map((s
 completions.gw = {
   alias:  "gw",
   name:   "gowalker",
-  favicon: "https://gowalker.org/img/favicon.png",
   search: "https://gowalker.org/search?auto_redirect=true&q=",
   compl:  "https://gowalker.org/search/json?q=",
 }
@@ -912,7 +908,6 @@ completions.gw.callback = (response) => JSON.parse(response.text).results.map((s
 completions.gs = {
   alias:  "gs",
   name:   "go-search",
-  favicon: "https://go-search.org/images/logo-16.png",
   search: "http://go-search.org/search?q=",
   compl:  "http://go-search.org/api?action=search&q=",
 }
@@ -926,7 +921,6 @@ completions.gs.callback = (response) => JSON.parse(response.text).hits
 completions.ha = {
   alias:  "ha",
   name:   "hackage",
-  favicon: "https://hackage.haskell.org/static/favicon.png",
   search: "https://hackage.haskell.org/packages/search?terms=",
   compl:  "https://hackage.haskell.org/packages/search.json?terms=",
 }
@@ -938,7 +932,6 @@ completions.ha.callback = (response) => JSON.parse(response.text)
 completions.ho = {
   alias:  "ho",
   name:   "hoogle",
-  favicon: "https://www.haskell.org/img/favicon.ico",
   search: `https://www.haskell.org/hoogle/?hoogle=${
     encodeURIComponent("+platform +xmonad +xmonad-contrib ")}`, // This tells Hoogle to include these modules in the search - encodeURIComponent is only used for better readability
   compl:  `https://www.haskell.org/hoogle/?mode=json&hoogle=${
@@ -952,7 +945,6 @@ completions.ho.callback = (response) => JSON.parse(response.text).results
 completions.hw = {
   alias:  "hw",
   name:   "haskellwiki",
-  favicon: "https://www.haskell.org/img/favicon.ico",
   search: "https://wiki.haskell.org/index.php?go=go&search=",
   compl:  "https://wiki.haskell.org/api.php?action=opensearch&format=json&formatversion=2&namespace=0&limit=10&suggest=true&search=",
 }
@@ -963,7 +955,6 @@ completions.hw.callback = (response) => JSON.parse(response.text)[1]
 completions.hy = {
   alias:  "hy",
   name:   "hayoo",
-  favicon: "https://www.haskell.org/img/favicon.ico",
   search: "http://hayoo.fh-wedel.de/?query=",
   compl:  "http://hayoo.fh-wedel.de/json?query=",
 }
@@ -1027,7 +1018,6 @@ completions.md.callback = (response) => {
 completions.np = {
   alias:  "np",
   name:   "npm",
-  favicon: "https://static.npmjs.com/da3ab40fb0861d15c83854c29f5f2962.png",
   search: "https://www.npmjs.com/search?q=",
   compl:  "https://api.npms.io/v2/search/suggestions?size=20&q=",
 }

gulpfile.js

@@ -235,7 +235,6 @@ task("docs", parallel(async () => {
 const getFavicon = async ({ domain, favicon }, timeout = 5000) => {
   const url = favicon
   let data
-  let ext = path.extname(new URL(favicon).pathname)
   try {
     const res = await fetch(url, { timeout })
     if (!res.ok) {
@@ -244,7 +243,6 @@ const getFavicon = async ({ domain, favicon }, timeout = 5000) => {
     data = await res.buffer()
   } catch (e) {
     process.stdout.write(`no favicon found for ${url}: ${e}\n`)
-    ext = ".ico"
     // transparent pixel
     data = Buffer.from(
       "AAABAAEAAQEAAAEAIAAwAAAAFgAAACgAAAABAAAAAgAAAAEAIAAAAAAABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAgAAAAA==",
@@ -253,7 +251,7 @@ const getFavicon = async ({ domain, favicon }, timeout = 5000) => {
   }
   return {
     domain,
-    name:   `${domain}${ext}`,
+    name:   `${domain}.ico`,
     source: data,
   }
 }
@@ -266,7 +264,7 @@ task("favicons", series("clean-favicons", async () => {
     Object.entries(compl)
       .map(([, v]) => ({
         domain:  new URL(v.domain ? `https://${v.domain}` : v.search).hostname,
-        favicon: v.favicon ? v.favicon : `${new URL(v.domain ? `https://${v.domain}` : v.search).origin}/favicon.ico`,
+        favicon: `https://icons.duckduckgo.com/ip3/${new URL(v.domain ? `https://${v.domain}` : v.search).hostname}.ico`,
       })),
 
     // site-specific keybindings
@@ -274,7 +272,7 @@ task("favicons", series("clean-favicons", async () => {
       .filter((k) => k !== "global")
       .map((k) => ({
         domain:  k,
-        favicon: `${new URL(`https://${k}`).origin}/favicon.ico`,
+        favicon: `https://icons.duckduckgo.com/ip3/${new URL(`https://${k}`).hostname}.ico`,
       })),
   ).filter((e, i, arr) => i === arr.indexOf(e)) // Keep only first occurrence of each element