Auto merge of rust-lang#93260 - matthiaskrgr:rollup-c5b9c76, r=matthiaskrgr

Rollup of 8 pull requests

Successful merges:

 - rust-lang#92513 (std: Implement try_reserve and try_reserve_exact on PathBuf)
 - rust-lang#93152 (Fix STD compilation for the ESP-IDF target (regression from CVE-2022-21658))
 - rust-lang#93186 (Fix link to CVE-2022-21658)
 - rust-lang#93188 (rustdoc: fix bump down typing search on Safari)
 - rust-lang#93212 (Remove unneeded cursor pointer rule on mobile sidebar)
 - rust-lang#93231 (adjust sidebar link brightness)
 - rust-lang#93241 (Fix brief appearance of rust logo in the sidebar)
 - rust-lang#93253 (Update theme on pageshow event)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup

Author: bors

RELEASES.md

@@ -7,7 +7,7 @@ Version 1.58.1 (2022-01-19)
 * [Fix wrong error message displayed when some imports are missing][91254]
 * [Fix rustfmt not formatting generated files from stdin][92912]
 
-[CVE-2022-21658]: https://www.cve.org/CVERecord?id=CVE-2022-21658]
+[CVE-2022-21658]: https://www.cve.org/CVERecord?id=CVE-2022-21658
 [91254]: https://github.com/rust-lang/rust/pull/91254
 [92912]: https://github.com/rust-lang/rust/pull/92912
 [clippy/8075]: https://github.com/rust-lang/rust-clippy/pull/8075

library/std/src/path.rs

@@ -72,6 +72,7 @@ mod tests;
 
 use crate::borrow::{Borrow, Cow};
 use crate::cmp;
+use crate::collections::TryReserveError;
 use crate::error::Error;
 use crate::fmt;
 use crate::fs;
@@ -1512,6 +1513,15 @@ impl PathBuf {
         self.inner.reserve(additional)
     }
 
+    /// Invokes [`try_reserve`] on the underlying instance of [`OsString`].
+    ///
+    /// [`try_reserve`]: OsString::try_reserve
+    #[unstable(feature = "try_reserve_2", issue = "91789")]
+    #[inline]
+    pub fn try_reserve(&mut self, additional: usize) -> Result<(), TryReserveError> {
+        self.inner.try_reserve(additional)
+    }
+
     /// Invokes [`reserve_exact`] on the underlying instance of [`OsString`].
     ///
     /// [`reserve_exact`]: OsString::reserve_exact
@@ -1521,6 +1531,15 @@ impl PathBuf {
         self.inner.reserve_exact(additional)
     }
 
+    /// Invokes [`try_reserve_exact`] on the underlying instance of [`OsString`].
+    ///
+    /// [`try_reserve_exact`]: OsString::try_reserve_exact
+    #[unstable(feature = "try_reserve_2", issue = "91789")]
+    #[inline]
+    pub fn try_reserve_exact(&mut self, additional: usize) -> Result<(), TryReserveError> {
+        self.inner.try_reserve_exact(additional)
+    }
+
     /// Invokes [`shrink_to_fit`] on the underlying instance of [`OsString`].
     ///
     /// [`shrink_to_fit`]: OsString::shrink_to_fit

library/std/src/sys/unix/fs.rs

@@ -1448,8 +1448,8 @@ pub fn chroot(dir: &Path) -> io::Result<()> {
 
 pub use remove_dir_impl::remove_dir_all;
 
-// Fallback for REDOX
-#[cfg(target_os = "redox")]
+// Fallback for REDOX and ESP-IDF
+#[cfg(any(target_os = "redox", target_os = "espidf"))]
 mod remove_dir_impl {
     pub use crate::sys_common::fs::remove_dir_all;
 }
@@ -1573,7 +1573,11 @@ mod remove_dir_impl {
 }
 
 // Modern implementation using openat(), unlinkat() and fdopendir()
-#[cfg(not(any(all(target_os = "macos", target_arch = "x86_64"), target_os = "redox")))]
+#[cfg(not(any(
+    all(target_os = "macos", target_arch = "x86_64"),
+    target_os = "redox",
+    target_os = "espidf"
+)))]
 mod remove_dir_impl {
     use super::{cstr, lstat, Dir, DirEntry, InnerReadDir, ReadDir};
     use crate::ffi::CStr;

src/librustdoc/html/static/css/rustdoc.css

@@ -397,7 +397,7 @@ nav.sub {
 }
 
 .source .sidebar > *:not(:first-child) {
-	transition: opacity 0.5s, visibility 0.2s;
+	transition: opacity 0.5s;
 	opacity: 0;
 	visibility: hidden;
 }
@@ -1848,7 +1848,6 @@ details.rustdoc-toggle[open] > summary.hideme::after {
 		position: sticky;
 		z-index: 10;
 		font-size: 2rem;
-		cursor: pointer;
 		height: 45px;
 		width: 100%;
 		left: 0;

src/librustdoc/html/static/css/themes/ayu.css

@@ -191,6 +191,10 @@ pre, .rustdoc.source .example-wrap {
 	color: #a37acc;
 }
 
+.sidebar a { color: #53b1db; }
+.sidebar a.current.type { color: #53b1db; }
+.sidebar a.current.associatedtype { color: #53b1db; }
+
 pre.rust .comment { color: #788797; }
 pre.rust .doccomment { color: #a1ac88; }
 
@@ -485,6 +489,25 @@ a.result-static:focus {}
 a.result-primitive:focus {}
 a.result-keyword:focus {}
 
+.sidebar a.current.enum {}
+.sidebar a.current.struct {}
+.sidebar a.current.foreigntype {}
+.sidebar a.current.attr,
+.sidebar a.current.derive,
+.sidebar a.current.macro {}
+.sidebar a.current.union {}
+.sidebar a.current.constant
+.sidebar a.current.static {}
+.sidebar a.current.primitive {}
+.sidebar a.current.externcrate
+.sidebar a.current.mod {}
+.sidebar a.current.trait {}
+.sidebar a.current.traitalias {}
+.sidebar a.current.fn,
+.sidebar a.current.method,
+.sidebar a.current.tymethod {}
+.sidebar a.current.keyword {}
+
 @media (max-width: 700px) {
 	.sidebar-menu {
 		background-color: #14191f;

src/librustdoc/html/static/css/themes/dark.css

@@ -148,6 +148,28 @@ a.result-keyword:focus { background-color: #884719; }
 .content .fnname{ color: #2BAB63; }
 .content span.keyword, .content a.keyword, .block a.current.keyword { color: #D2991D; }
 
+.sidebar a { color: #fdbf35; }
+.sidebar a.current.enum { color: #12ece2; }
+.sidebar a.current.struct { color: #12ece2; }
+.sidebar a.current.type { color: #12ece2; }
+.sidebar a.current.associatedtype { color: #fdbf35; }
+.sidebar a.current.foreigntype { color: #12ece2; }
+.sidebar a.current.attr,
+.sidebar a.current.derive,
+.sidebar a.current.macro { color: #0be900; }
+.sidebar a.current.union { color: #12ece2; }
+.sidebar a.current.constant
+.sidebar a.current.static { color: #fdbf35; }
+.sidebar a.current.primitive { color: #12ece2; }
+.sidebar a.current.externcrate
+.sidebar a.current.mod { color: #fdbf35; }
+.sidebar a.current.trait { color: #cca7ff; }
+.sidebar a.current.traitalias { color: #cca7ff; }
+.sidebar a.current.fn,
+.sidebar a.current.method,
+.sidebar a.current.tymethod { color: #32d479; }
+.sidebar a.current.keyword { color: #fdbf35; }
+
 pre.rust .comment { color: #8d8d8b; }
 pre.rust .doccomment { color: #8ca375; }
 

src/librustdoc/html/static/css/themes/light.css

@@ -148,6 +148,28 @@ a.result-keyword:focus { background-color: #afc6e4; }
 .content .fnname { color: #AD7C37; }
 .content span.keyword, .content a.keyword, .block a.current.keyword { color: #3873AD; }
 
+.sidebar a { color: #356da4; }
+.sidebar a.current.enum { color: #a63283; }
+.sidebar a.current.struct { color: #a63283; }
+.sidebar a.current.type { color: #a63283; }
+.sidebar a.current.associatedtype { color: #356da4; }
+.sidebar a.current.foreigntype { color: #356da4; }
+.sidebar a.current.attr,
+.sidebar a.current.derive,
+.sidebar a.current.macro { color: #067901; }
+.sidebar a.current.union { color: #a63283; }
+.sidebar a.current.constant
+.sidebar a.current.static { color: #356da4; }
+.sidebar a.current.primitive { color: #a63283; }
+.sidebar a.current.externcrate
+.sidebar a.current.mod { color: #356da4; }
+.sidebar a.current.trait { color: #6849c3; }
+.sidebar a.current.traitalias { color: #4b349e; }
+.sidebar a.current.fn,
+.sidebar a.current.method,
+.sidebar a.current.tymethod { color: #32d479; }
+.sidebar a.current.keyword { color: #356da4; }
+
 nav.main .current {
 	border-top-color: #000;
 	border-bottom-color: #000;

src/librustdoc/html/static/js/storage.js

@@ -216,6 +216,15 @@ var updateSystemTheme = (function() {
     };
 })();
 
+function switchToSavedTheme() {
+    switchTheme(
+        window.currentTheme,
+        window.mainTheme,
+        getSettingValue("theme") || "light",
+        false
+    );
+}
+
 if (getSettingValue("use-system-theme") !== "false" && window.matchMedia) {
     // update the preferred dark theme if the user is already using a dark theme
     // See https://github.com/rust-lang/rust/pull/77809#issuecomment-707875732
@@ -228,10 +237,20 @@ if (getSettingValue("use-system-theme") !== "false" && window.matchMedia) {
     // call the function to initialize the theme at least once!
     updateSystemTheme();
 } else {
-    switchTheme(
-        window.currentTheme,
-        window.mainTheme,
-        getSettingValue("theme") || "light",
-        false
-    );
+    switchToSavedTheme();
 }
+
+// If we navigate away (for example to a settings page), and then use the back or
+// forward button to get back to a page, the theme may have changed in the meantime.
+// But scripts may not be re-loaded in such a case due to the bfcache
+// (https://web.dev/bfcache/). The "pageshow" event triggers on such navigations.
+// Use that opportunity to update the theme.
+// We use a setTimeout with a 0 timeout here to put the change on the event queue.
+// For some reason, if we try to change the theme while the `pageshow` event is
+// running, it sometimes fails to take effect. The problem manifests on Chrome,
+// specifically when talking to a remote website with no caching.
+window.addEventListener("pageshow", function(ev) {
+    if (ev.persisted) {
+        setTimeout(switchToSavedTheme, 0);
+    }
+});

src/librustdoc/html/templates/page.html

@@ -117,6 +117,7 @@ <h2 class="location"></h2>
                     </div> {#- -#}
                     <form class="search-form"> {#- -#}
                         <div class="search-container"> {#- -#}
+                            <span></span> {#- This empty span is a hacky fix for Safari - See #93184 -#}
                             <input {# -#}
                                 class="search-input" {# -#}
                                 name="search" {# -#}

src/test/rustdoc-gui/anchors.goml

@@ -20,7 +20,7 @@ assert-css: (".srclink", {"text-decoration": "underline solid rgb(56, 115, 173)"
 
 assert-css: ("#top-doc-prose-title", {"color": "rgb(0, 0, 0)"})
 
-assert-css: (".sidebar a", {"color": "rgb(56, 115, 173)"})
+assert-css: (".sidebar a", {"color": "rgb(53, 109, 164)"})
 assert-css: (".in-band a", {"color": "rgb(0, 0, 0)"})
 
 // We move the cursor over the "Implementations" title so the anchor is displayed.