1 files changed, 144 insertions, 0 deletions
diff --git a/dev_tools/src/bin/docsify_sidebar_gen.rs b/dev_tools/src/bin/docsify_sidebar_gen.rs
new file mode 100644
index 0000000..9020ca4
--- /dev/null
+++ b/dev_tools/src/bin/docsify_sidebar_gen.rs
@@ -0,0 +1,144 @@
+use std::collections::BTreeMap;
+use std::path::Path;
+
+const PAGES_ROOT: &str = "./docs/pages";
+const SIDEBAR_PATH: &str = "./docs/_sidebar.md";
+
+const SIDEBAR_HEAD: &str = "- [Welcome!](README)\n";
+
+fn main() {
+    println!("Refreshing _sidebar.md");
+    gen_sidebar();
+}
+
+fn gen_sidebar() {
+    let repo_root = find_git_repo().unwrap();
+    let pages_root = repo_root.join(PAGES_ROOT);
+
+    let mut lines = String::from(SIDEBAR_HEAD);
+
+    // Collect and sort entries at root level first
+    let mut root_files: Vec<SidebarEntry> = Vec::new();
+    // Subdirectory name -> its files
+    let mut sub_dirs: BTreeMap<String, Vec<SidebarEntry>> = BTreeMap::new();
+
+    if let Ok(read_dir) = std::fs::read_dir(&pages_root) {
+        for entry in read_dir.flatten() {
+            let path = entry.path();
+            if path.is_dir() {
+                let dir_name = entry.file_name().to_string_lossy().to_string();
+                let entries = collect_markdown_files(&path);
+                if !entries.is_empty() {
+                    sub_dirs.insert(dir_name, entries);
+                }
+            } else if path.extension().map_or(false, |ext| ext == "md") {
+                let title = extract_title(&path);
+                let relative = path
+                    .strip_prefix(&repo_root.join("docs"))
+                    .unwrap()
+                    .to_string_lossy()
+                    .replace('\\', "/");
+                let link = relative
+                    .strip_suffix(".md")
+                    .unwrap_or(&relative)
+                    .to_string();
+                root_files.push(SidebarEntry { title, link });
+            }
+        }
+    }
+
+    // Sort root files by link for stable order
+    root_files.sort_by(|a, b| a.link.cmp(&b.link));
+
+    // Append root-level files
+    for f in &root_files {
+        lines.push_str(&format!("* [{}]({})\n", f.title, f.link));
+    }
+
+    // Append subdirectory groups
+    for (dir_name, entries) in &sub_dirs {
+        let mut sorted_entries = entries.clone();
+        sorted_entries.sort_by(|a, b| a.link.cmp(&b.link));
+
+        // Directory header with 2-space indent
+        lines.push_str(&format!("* {}\n", dir_name));
+        for f in &sorted_entries {
+            lines.push_str(&format!("  * [{}]({})\n", f.title, f.link));
+        }
+    }
+
+    let sidebar_path = repo_root.join(SIDEBAR_PATH);
+    std::fs::write(&sidebar_path, lines).unwrap();
+    println!("  Generated: {}", sidebar_path.display());
+}
+
+#[derive(Clone)]
+struct SidebarEntry {
+    title: String,
+    link: String,
+}
+
+/// Collect all `.md` files directly under `dir` (non-recursive).
+fn collect_markdown_files(dir: &Path) -> Vec<SidebarEntry> {
+    let mut entries = Vec::new();
+    let repo_root = find_git_repo().unwrap();
+    let docs_root = repo_root.join("docs");
+
+    if let Ok(read_dir) = std::fs::read_dir(dir) {
+        for entry in read_dir.flatten() {
+            let path = entry.path();
+            if path.extension().map_or(false, |ext| ext == "md") {
+                let title = extract_title(&path);
+                let relative = path
+                    .strip_prefix(&docs_root)
+                    .unwrap()
+                    .to_string_lossy()
+                    .replace('\\', "/");
+                let link = relative
+                    .strip_suffix(".md")
+                    .unwrap_or(&relative)
+                    .to_string();
+                entries.push(SidebarEntry { title, link });
+            }
+        }
+    }
+
+    entries
+}
+
+/// Extract title from the first line `<h1 align="center">TITLE</h1>`.
+/// Fallback to filename stem.
+fn extract_title(path: &Path) -> String {
+    let content = std::fs::read_to_string(path).unwrap_or_default();
+    if let Some(first_line) = content.lines().next() {
+        let trimmed = first_line.trim();
+        // Find `>TITLE<` between `<h1 align="center">` and `</h1>`
+        if let Some(start) = trimmed.find('>') {
+            let after_start = &trimmed[start + 1..];
+            if let Some(end) = after_start.find('<') {
+                return after_start[..end].to_string();
+            }
+        }
+    }
+    // Fallback: use file stem
+    path.file_stem()
+        .map(|s| s.to_string_lossy().to_string())
+        .unwrap_or_else(|| "Untitled".to_string())
+}
+
+fn find_git_repo() -> Option<std::path::PathBuf> {
+    let mut current_dir = std::env::current_dir().ok()?;
+
+    loop {
+        let git_dir = current_dir.join(".git");
+        if git_dir.exists() && git_dir.is_dir() {
+            return Some(current_dir);
+        }
+
+        if !current_dir.pop() {
+            break;
+        }
+    }
+
+    None
+}