Check that files of readme links are present and images have alt text

Author: saecki

Cargo.lock

@@ -13,12 +13,15 @@ comrak = { version = "0.49.0", default-features = false }
 dirs = "6.0.0"
 dotenvy = "0.15.7"
 fontdb = "0.23.0"
+html5ever = "0.38.0"
+markup5ever_rcdom = "0.38.0"
 ignore = "0.4.25"
 jwt-simple = { version = "0.12", default-features = false, features = [
     "pure-rust",
 ] }
 parking_lot = "0.12.5"
 pathdiff = "0.2.3"
+regex = "1.12.3"
 reqwest = { version = "0.12", features = ["json"] }
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"

Cargo.toml

@@ -1,4 +1,4 @@
-use std::path::{Path, PathBuf};
+use std::path::{Component, Path, PathBuf};
 
 use codespan_reporting::diagnostic::{Diagnostic, Label};
 use ignore::overrides::Override;
@@ -69,3 +69,17 @@ pub fn forbid_font_files(
 
     Ok(())
 }
+
+/// Stips any any leading root components (`/` or `\`) of the path before
+/// joining it to the `root` path.
+///
+/// Absolute paths (starting with `/` or `\`) replace the complete path when
+/// `join`ed with a parent path.
+pub fn path_relative_to(root: &Path, path: &Path) -> PathBuf {
+    let components = path
+        .components()
+        .skip_while(|c| matches!(c, Component::RootDir))
+        .map(|c| Path::new(c.as_os_str()));
+
+    PathBuf::from_iter(std::iter::once(root).chain(components))
+}