Rollup merge of #134807 - poliorcetics:ab/push-skpynvsmwkll, r=camelid

fix(rustdoc): always use a channel when linking to doc.rust-lang.org

Closes #131971

I manually checked the resulting links

One issue is that this will create `nightly/...` links in places that formerly linked to stable, is that ok ? (the `slice` and `array` links in the search help notably)

2 files changed, 13 insertions, 12 deletions

diff --git a/src/librustdoc/html/static/js/main.js b/src/librustdoc/html/static/js/main.js
index ccf4002bb30..bfd5cb7764f 100644
--- a/src/librustdoc/html/static/js/main.js
+++ b/src/librustdoc/html/static/js/main.js
@@ -1534,10 +1534,10 @@ function preLoadCss(cssUrl) {
 
     function buildHelpMenu() {
         const book_info = document.createElement("span");
-        const channel = getVar("channel");
+        const drloChannel = `https://doc.rust-lang.org/${getVar("channel")}`;
         book_info.className = "top";
         book_info.innerHTML = `You can find more information in \
-<a href="https://doc.rust-lang.org/${channel}/rustdoc/">the rustdoc book</a>.`;
+<a href="${drloChannel}/rustdoc/">the rustdoc book</a>.`;
 
         const shortcuts = [
             ["?", "Show this help dialog"],
@@ -1557,8 +1557,8 @@ function preLoadCss(cssUrl) {
         div_shortcuts.innerHTML = "<h2>Keyboard Shortcuts</h2><dl>" + shortcuts + "</dl></div>";
 
         const infos = [
-            `For a full list of all search features, take a look <a \
-href="https://doc.rust-lang.org/${channel}/rustdoc/read-documentation/search.html">here</a>.`,
+            `For a full list of all search features, take a look \
+             <a href="${drloChannel}/rustdoc/read-documentation/search.html">here</a>.`,
             "Prefix searches with a type followed by a colon (e.g., <code>fn:</code>) to \
              restrict the search to a given item kind.",
             "Accepted kinds are: <code>fn</code>, <code>mod</code>, <code>struct</code>, \
@@ -1568,10 +1568,10 @@ href="https://doc.rust-lang.org/${channel}/rustdoc/read-documentation/search.htm
              <code>-&gt; vec</code> or <code>String, enum:Cow -&gt; bool</code>)",
             "You can look for items with an exact name by putting double quotes around \
              your request: <code>\"string\"</code>",
-             "Look for functions that accept or return \
-              <a href=\"https://doc.rust-lang.org/std/primitive.slice.html\">slices</a> and \
-              <a href=\"https://doc.rust-lang.org/std/primitive.array.html\">arrays</a> by writing \
-              square brackets (e.g., <code>-&gt; [u8]</code> or <code>[] -&gt; Option</code>)",
+             `Look for functions that accept or return \
+              <a href="${drloChannel}/std/primitive.slice.html">slices</a> and \
+              <a href="${drloChannel}/std/primitive.array.html">arrays</a> by writing square \
+              brackets (e.g., <code>-&gt; [u8]</code> or <code>[] -&gt; Option</code>)`,
             "Look for items inside another one by searching for a path: <code>vec::Vec</code>",
         ].map(x => "<p>" + x + "</p>").join("");
         const div_infos = document.createElement("div");
diff --git a/src/librustdoc/html/static/js/search.js b/src/librustdoc/html/static/js/search.js
index 1ad32721e06..662e9510699 100644
--- a/src/librustdoc/html/static/js/search.js
+++ b/src/librustdoc/html/static/js/search.js
@@ -1,5 +1,5 @@
 // ignore-tidy-filelength
-/* global addClass, getNakedUrl, getSettingValue */
+/* global addClass, getNakedUrl, getSettingValue, getVar */
 /* global onEachLazy, removeClass, searchState, browserSupportsHistoryApi, exports */
 
 "use strict";
@@ -4923,17 +4923,18 @@ ${item.displayPath}<span class="${type}">${name}</span>\
             }
         });
     } else if (query.error === null) {
+        const dlroChannel = `https://doc.rust-lang.org/${getVar("channel")}`;
         output.className = "search-failed" + extraClass;
         output.innerHTML = "No results :(<br/>" +
             "Try on <a href=\"https://duckduckgo.com/?q=" +
             encodeURIComponent("rust " + query.userQuery) +
             "\">DuckDuckGo</a>?<br/><br/>" +
             "Or try looking in one of these:<ul><li>The <a " +
-            "href=\"https://doc.rust-lang.org/reference/index.html\">Rust Reference</a> " +
+            `href="${dlroChannel}/reference/index.html">Rust Reference</a> ` +
             " for technical details about the language.</li><li><a " +
-            "href=\"https://doc.rust-lang.org/rust-by-example/index.html\">Rust By " +
+            `href="${dlroChannel}/rust-by-example/index.html">Rust By ` +
             "Example</a> for expository code examples.</a></li><li>The <a " +
-            "href=\"https://doc.rust-lang.org/book/index.html\">Rust Book</a> for " +
+            `href="${dlroChannel}/book/index.html">Rust Book</a> for ` +
             "introductions to language features and the language itself.</li><li><a " +
             "href=\"https://docs.rs\">Docs.rs</a> for documentation of crates released on" +
             " <a href=\"https://crates.io/\">crates.io</a>.</li></ul>";