Fix new sidebar changes

build.rs

@@ -77,6 +77,7 @@ fn compile_sass() -> Result<(), Box<dyn Error>> {
 
     // Compile rustdoc.scss -> rustdoc.css
     compile_sass_file("rustdoc", "rustdoc", &[])?;
+    compile_sass_file("rustdoc-2021-12-06", "rustdoc-2021-12-06", &[])?;
 
     // Compile vendored.scss -> vendored.css
     compile_sass_file(

src/utils/mod.rs

@@ -6,7 +6,7 @@ pub use self::daemon::start_daemon;
 pub(crate) use self::html::rewrite_lol;
 pub use self::queue::{get_crate_priority, remove_crate_priority, set_crate_priority};
 pub use self::queue_builder::queue_builder;
-pub(crate) use self::rustc_version::parse_rustc_version;
+pub(crate) use self::rustc_version::{get_correct_docsrs_style_file, parse_rustc_version};
 
 #[cfg(test)]
 pub(crate) use self::cargo_metadata::{Dependency, Target};

src/utils/rustc_version.rs

@@ -1,5 +1,7 @@
 use crate::error::Result;
 use anyhow::{anyhow, Context};
+use chrono::prelude::*;
+use once_cell::sync::Lazy;
 use regex::Regex;
 
 /// Parses rustc commit hash from rustc version string
@@ -19,6 +21,38 @@ pub fn parse_rustc_version<S: AsRef<str>>(version: S) -> Result<String> {
     ))
 }
 
+fn parse_rustc_date<S: AsRef<str>>(version: S) -> Result<Date<Utc>> {
+    static RE: Lazy<Regex> = Lazy::new(|| Regex::new(r" (\d+)-(\d+)-(\d+)\)$").unwrap());
+
+    let cap = RE
+        .captures(version.as_ref())
+        .with_context(|| anyhow!("Failed to parse rustc date"))?;
+
+    let year = cap.get(1).unwrap().as_str();
+    let month = cap.get(2).unwrap().as_str();
+    let day = cap.get(3).unwrap().as_str();
+
+    Ok(Utc.ymd(
+        year.parse::<i32>().unwrap(),
+        month.parse::<u32>().unwrap(),
+        day.parse::<u32>().unwrap(),
+    ))
+}
+
+/// Picks the correct "rustdoc.css" static file depending on which rustdoc version was used to
+/// generate this version of this crate.
+pub fn get_correct_docsrs_style_file(version: &str) -> Result<String> {
+    let date = parse_rustc_date(version)?;
+    // This is the date where https://github.com/rust-lang/rust/pull/91356 was merged.
+    if Utc.ymd(2021, 12, 6) < date {
+        // If this is the new rustdoc layout, we need the newer docs.rs CSS file.
+        Ok("rustdoc-2021-12-06.css".to_owned())
+    } else {
+        // By default, we return the old docs.rs CSS file.
+        Ok("rustdoc.css".to_owned())
+    }
+}
+
 #[test]
 fn test_parse_rustc_version() {
     assert_eq!(
@@ -30,3 +64,16 @@ fn test_parse_rustc_version() {
         "20160526-0.2.0-ba9ae23"
     );
 }
+
+#[test]
+fn test_get_correct_docsrs_style_file() {
+    assert_eq!(
+        get_correct_docsrs_style_file("rustc 1.10.0-nightly (57ef01513 2016-05-23)").unwrap(),
+        "rustdoc.css"
+    );
+    assert_eq!(
+        get_correct_docsrs_style_file("docsrs 0.2.0 (ba9ae23 2022-05-26)").unwrap(),
+        "rustdoc-2021-12-06.css"
+    );
+    assert!(get_correct_docsrs_style_file("docsrs 0.2.0").is_err(),);
+}

src/web/builds.rs

@@ -144,14 +144,14 @@ mod tests {
                 .version("0.1.0")
                 .builds(vec![
                     FakeBuild::default()
-                        .rustc_version("rustc 1.0.0")
+                        .rustc_version("rustc (blabla 2019-01-01)")
                         .docsrs_version("docs.rs 1.0.0"),
                     FakeBuild::default()
                         .successful(false)
-                        .rustc_version("rustc 2.0.0")
+                        .rustc_version("rustc (blabla 2020-01-01)")
                         .docsrs_version("docs.rs 2.0.0"),
                     FakeBuild::default()
-                        .rustc_version("rustc 3.0.0")
+                        .rustc_version("rustc (blabla 2021-01-01)")
                         .docsrs_version("docs.rs 3.0.0"),
                 ])
                 .create()?;
@@ -169,11 +169,11 @@ mod tests {
                 .map(|row| row.text_contents())
                 .collect();
 
-            assert!(rows[0].contains("rustc 3.0.0"));
+            assert!(rows[0].contains("rustc (blabla 2021-01-01)"));
             assert!(rows[0].contains("docs.rs 3.0.0"));
-            assert!(rows[1].contains("rustc 2.0.0"));
+            assert!(rows[1].contains("rustc (blabla 2020-01-01)"));
             assert!(rows[1].contains("docs.rs 2.0.0"));
-            assert!(rows[2].contains("rustc 1.0.0"));
+            assert!(rows[2].contains("rustc (blabla 2019-01-01)"));
             assert!(rows[2].contains("docs.rs 1.0.0"));
 
             Ok(())
@@ -188,14 +188,14 @@ mod tests {
                 .version("0.1.0")
                 .builds(vec![
                     FakeBuild::default()
-                        .rustc_version("rustc 1.0.0")
+                        .rustc_version("rustc (blabla 2019-01-01)")
                         .docsrs_version("docs.rs 1.0.0"),
                     FakeBuild::default()
                         .successful(false)
-                        .rustc_version("rustc 2.0.0")
+                        .rustc_version("rustc (blabla 2020-01-01)")
                         .docsrs_version("docs.rs 2.0.0"),
                     FakeBuild::default()
-                        .rustc_version("rustc 3.0.0")
+                        .rustc_version("rustc (blabla 2021-01-01)")
                         .docsrs_version("docs.rs 3.0.0"),
                 ])
                 .create()?;
@@ -214,7 +214,7 @@ mod tests {
             );
             assert_eq!(
                 value.pointer("/0/rustc_version"),
-                Some(&"rustc 3.0.0".into())
+                Some(&"rustc (blabla 2021-01-01)".into())
             );
             assert!(value.pointer("/0/id").unwrap().is_i64());
             assert!(serde_json::from_value::<DateTime<Utc>>(
@@ -229,7 +229,7 @@ mod tests {
             );
             assert_eq!(
                 value.pointer("/1/rustc_version"),
-                Some(&"rustc 2.0.0".into())
+                Some(&"rustc (blabla 2020-01-01)".into())
             );
             assert!(value.pointer("/1/id").unwrap().is_i64());
             assert!(serde_json::from_value::<DateTime<Utc>>(
@@ -244,7 +244,7 @@ mod tests {
             );
             assert_eq!(
                 value.pointer("/2/rustc_version"),
-                Some(&"rustc 1.0.0".into())
+                Some(&"rustc (blabla 2019-01-01)".into())
             );
             assert!(value.pointer("/2/id").unwrap().is_i64());
             assert!(serde_json::from_value::<DateTime<Utc>>(
@@ -317,15 +317,15 @@ mod tests {
                 .name("aquarelle")
                 .version("0.1.0")
                 .builds(vec![FakeBuild::default()
-                    .rustc_version("rustc 1.0.0")
+                    .rustc_version("rustc (blabla 2019-01-01)")
                     .docsrs_version("docs.rs 1.0.0")])
                 .create()?;
 
             env.fake_release()
                 .name("aquarelle")
                 .version("0.2.0")
                 .builds(vec![FakeBuild::default()
-                    .rustc_version("rustc 1.0.0")
+                    .rustc_version("rustc (blabla 2019-01-01)")
                     .docsrs_version("docs.rs 1.0.0")])
                 .create()?;
 
@@ -363,7 +363,7 @@ mod tests {
                 .name("foo")
                 .version("0.1.0")
                 .builds(vec![FakeBuild::default()
-                    .rustc_version("rustc 1.0.0")
+                    .rustc_version("rustc (blabla 2019-01-01)")
                     .docsrs_version("docs.rs 1.0.0")])
                 .create()?;
 
@@ -382,7 +382,7 @@ mod tests {
                 .name("foo")
                 .version("0.1.0")
                 .builds(vec![FakeBuild::default()
-                    .rustc_version("rustc 1.0.0")
+                    .rustc_version("rustc (blabla 2019-01-01)")
                     .docsrs_version("docs.rs 1.0.0")])
                 .create()?;
 

src/web/crate_details.rs

@@ -1,4 +1,5 @@
 use super::{match_version, redirect_base, render_markdown, MatchSemver, MetaData};
+use crate::utils::get_correct_docsrs_style_file;
 use crate::{db::Pool, impl_webpage, repositories::RepositoryStatsUpdater, web::page::WebPage};
 use chrono::{DateTime, Utc};
 use iron::prelude::*;
@@ -114,6 +115,7 @@ impl CrateDetails {
                 releases.license,
                 releases.documentation_url,
                 releases.default_target,
+                releases.doc_rustc_version,
                 doc_coverage.total_items,
                 doc_coverage.documented_items,
                 doc_coverage.total_items_needing_examples,
@@ -159,6 +161,7 @@ impl CrateDetails {
             default_target: krate.get("default_target"),
             doc_targets: MetaData::parse_doc_targets(krate.get("doc_targets")),
             yanked: krate.get("yanked"),
+            rustdoc_css_file: get_correct_docsrs_style_file(krate.get("doc_rustc_version"))?,
         };
 
         let documented_items: Option<i32> = krate.get("documented_items");

src/web/mod.rs

@@ -2,6 +2,7 @@
 
 pub(crate) mod page;
 
+use crate::utils::get_correct_docsrs_style_file;
 use crate::utils::report_error;
 use anyhow::{anyhow, Context as _};
 use log::info;
@@ -534,6 +535,9 @@ pub(crate) struct MetaData {
     pub(crate) default_target: String,
     pub(crate) doc_targets: Vec<String>,
     pub(crate) yanked: bool,
+    /// CSS file to use depending on the rustdoc version used to generate this version of this
+    /// crate.
+    pub(crate) rustdoc_css_file: String,
 }
 
 impl MetaData {
@@ -552,7 +556,8 @@ impl MetaData {
                        releases.rustdoc_status,
                        releases.default_target,
                        releases.doc_targets,
-                       releases.yanked
+                       releases.yanked,
+                       releases.doc_rustc_version
                 FROM releases
                 INNER JOIN crates ON crates.id = releases.crate_id
                 WHERE crates.name = $1 AND releases.version = $2",
@@ -572,6 +577,7 @@ impl MetaData {
             default_target: row.get(5),
             doc_targets: MetaData::parse_doc_targets(row.get(6)),
             yanked: row.get(7),
+            rustdoc_css_file: get_correct_docsrs_style_file(row.get(8)).unwrap(),
         })
     }
 
@@ -927,6 +933,7 @@ mod test {
                 "arm64-unknown-linux-gnu".to_string(),
             ],
             yanked: false,
+            rustdoc_css_file: "rustdoc.css".to_string(),
         };
 
         let correct_json = json!({
@@ -942,6 +949,7 @@ mod test {
                 "arm64-unknown-linux-gnu",
             ],
             "yanked": false,
+            "rustdoc_css_file": "rustdoc.css",
         });
 
         assert_eq!(correct_json, serde_json::to_value(&metadata).unwrap());
@@ -960,6 +968,7 @@ mod test {
                 "arm64-unknown-linux-gnu",
             ],
             "yanked": false,
+            "rustdoc_css_file": "rustdoc.css",
         });
 
         assert_eq!(correct_json, serde_json::to_value(&metadata).unwrap());
@@ -978,6 +987,7 @@ mod test {
                 "arm64-unknown-linux-gnu",
             ],
             "yanked": false,
+            "rustdoc_css_file": "rustdoc.css",
         });
 
         assert_eq!(correct_json, serde_json::to_value(&metadata).unwrap());
@@ -1001,6 +1011,7 @@ mod test {
                     default_target: "x86_64-unknown-linux-gnu".to_string(),
                     doc_targets: vec![],
                     yanked: false,
+                    rustdoc_css_file: "rustdoc.css".to_string(),
                 },
             );
             Ok(())

src/web/source.rs

@@ -3,6 +3,7 @@
 use crate::{
     db::Pool,
     impl_webpage,
+    utils::get_correct_docsrs_style_file,
     web::{
         error::Nope, file::File as DbFile, match_version, page::WebPage, redirect_base,
         MatchSemver, MetaData, Url,
@@ -67,7 +68,8 @@ impl FileList {
                         releases.files,
                         releases.default_target,
                         releases.doc_targets,
-                        releases.yanked
+                        releases.yanked,
+                        releases.doc_rustc_version
                 FROM releases
                 LEFT OUTER JOIN crates ON crates.id = releases.crate_id
                 WHERE crates.name = $1 AND releases.version = $2",
@@ -147,6 +149,7 @@ impl FileList {
                     default_target: rows[0].get(6),
                     doc_targets: MetaData::parse_doc_targets(rows[0].get(7)),
                     yanked: rows[0].get(8),
+                    rustdoc_css_file: get_correct_docsrs_style_file(rows[0].get(9)).unwrap(),
                 },
                 files: file_list,
             })

src/web/statics.rs

@@ -1,7 +1,7 @@
 use super::{error::Nope, redirect, redirect_base, STATIC_FILE_CACHE_DURATION};
 use crate::utils::report_error;
 use anyhow::Context;
-use chrono::Utc;
+use chrono::prelude::*;
 use iron::{
     headers::CacheDirective,
     headers::{CacheControl, ContentLength, ContentType, LastModified},
@@ -14,6 +14,8 @@ use std::{ffi::OsStr, fs, path::Path};
 const VENDORED_CSS: &str = include_str!(concat!(env!("OUT_DIR"), "/vendored.css"));
 const STYLE_CSS: &str = include_str!(concat!(env!("OUT_DIR"), "/style.css"));
 const RUSTDOC_CSS: &str = include_str!(concat!(env!("OUT_DIR"), "/rustdoc.css"));
+const RUSTDOC_2021_12_06_CSS: &str =
+    include_str!(concat!(env!("OUT_DIR"), "/rustdoc-2021-12-06.css"));
 const STATIC_SEARCH_PATHS: &[&str] = &["static", "vendor"];
 
 pub(crate) fn static_handler(req: &mut Request) -> IronResult<Response> {
@@ -25,6 +27,10 @@ pub(crate) fn static_handler(req: &mut Request) -> IronResult<Response> {
         "vendored.css" => serve_resource(VENDORED_CSS, ContentType("text/css".parse().unwrap())),
         "style.css" => serve_resource(STYLE_CSS, ContentType("text/css".parse().unwrap())),
         "rustdoc.css" => serve_resource(RUSTDOC_CSS, ContentType("text/css".parse().unwrap())),
+        "rustdoc-2021-12-06.css" => serve_resource(
+            RUSTDOC_2021_12_06_CSS,
+            ContentType("text/css".parse().unwrap()),
+        ),
         file => serve_file(file)?,
     })
 }

templates/rustdoc/head.html

@@ -1,5 +1,5 @@
 {%- import "macros.html" as macros -%}
-        <link rel="stylesheet" href="/-/static/rustdoc.css?{{ docsrs_version() | slugify }}" type="text/css" media="all" />
+        <link rel="stylesheet" href="/-/static/{{metadata.rustdoc_css_file}}?{{ docsrs_version() | slugify }}" type="text/css" media="all" />
 
         <link rel="search" href="/-/static/opensearch.xml" type="application/opensearchdescription+xml" title="Docs.rs" />
 

templates/style/rustdoc-2021-12-06.scss

@@ -0,0 +1,41 @@
+// FIXME: Use modules
+@import "rustdoc-common";
+
+// This file is needed to overload the previous docs.rs style. It is added into crates generated
+// using rustdoc after https://github.com/rust-lang/rust/pull/91356 has been merged.
+
+#rustdoc_body_wrapper {
+    padding: 0;
+
+    .sidebar {
+        margin-top: 0;
+        top: $top-navbar-height;
+
+        .sidebar-menu {
+            top: $top-navbar-height;
+        }
+    }
+
+    main {
+        padding-bottom: 50px;
+    }
+}
+
+div.container-rustdoc {
+    > .docs-rs-footer {
+        bottom: 0;
+        right: 0;
+    }
+}
+
+div.container-rustdoc:not(.source) {
+    > .docs-rs-footer {
+        left: 200px;
+    }
+}
+
+div.rustdoc {
+    #sidebar-toggle {
+        top: 0;
+    }
+}