From 1af63b2a8c19d5c85384747861e0d514d4d93249 Mon Sep 17 00:00:00 2001
From: Ammar Bandukwala <ammar@ammar.io>
Date: Mon, 6 Oct 2025 12:35:53 -0500
Subject: [PATCH] =?UTF-8?q?=F0=9F=A4=96=20Cache=20cargo=20binaries=20for?=
 =?UTF-8?q?=20docs=20workflow?=
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Reduces workflow time from ~2-3 minutes to ~30 seconds on cache hit.

_Generated with `cmux`_
---
 .github/workflows/docs.yml | 20 ++++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index fbab659271..1f580f164a 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -26,6 +26,17 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
 
+      - name: Setup Rust toolchain
+        uses: dtolnay/rust-toolchain@stable
+
+      - name: Cache cargo binaries
+        uses: actions/cache@v4
+        with:
+          path: ~/.cargo/bin
+          key: ${{ runner.os }}-cargo-bins-mdbook-mermaid-0.16.0-linkcheck-0.7.7
+          restore-keys: |
+            ${{ runner.os }}-cargo-bins-
+
       - name: Setup mdBook
         uses: peaceiris/actions-mdbook@v2
         with:
@@ -33,11 +44,16 @@ jobs:
 
       - name: Install mdbook-mermaid
         run: |
-          cargo install mdbook-mermaid --version 0.16.0
+          if ! command -v mdbook-mermaid &> /dev/null; then
+            cargo install mdbook-mermaid --version 0.16.0
+          fi
           mdbook-mermaid install docs
 
       - name: Install mdbook-linkcheck
-        run: cargo install mdbook-linkcheck --version 0.7.7
+        run: |
+          if ! command -v mdbook-linkcheck &> /dev/null; then
+            cargo install mdbook-linkcheck --version 0.7.7
+          fi
 
       - name: Build docs
         run: cd docs && mdbook build