From 57d1e6b068512d2dd52e7e90a2b96240899ff36a Mon Sep 17 00:00:00 2001
From: Martin Liska <martin.liska@hey.com>
Date: Mon, 6 Jan 2025 08:58:29 +0100
Subject: [PATCH 1/2] Save linkcheck cache always

---
 .github/workflows/ci.yml | 22 ++++++++++++++++------
 book.toml                |  4 +++-
 2 files changed, 19 insertions(+), 7 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 07c20d8d8..1b5c41417 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -35,12 +35,13 @@ jobs:
             ~/.cargo/bin
           key: ${{ runner.os }}-${{ env.MDBOOK_VERSION }}--${{ env.MDBOOK_LINKCHECK2_VERSION }}--${{ env.MDBOOK_TOC_VERSION }}--${{ env.MDBOOK_MERMAID_VERSION }}
 
-      - name: Cache linkcheck
-        uses: actions/cache@v4
+      - name: Restore cached Linkcheck
+        if: github.event_name == 'schedule'
+        id: cache-linkcheck-restore
+        uses: actions/cache/restore@v4
         with:
-          path: |
-            ~/book/linkcheck
-          key: ${{ runner.os }}-${{ hashFiles('./book/linkcheck') }}
+          path: book/linkcheck/cache.json
+          key: linkcheck
 
       - name: Install latest nightly Rust toolchain
         if: steps.mdbook-cache.outputs.cache-hit != 'true'
@@ -57,7 +58,16 @@ jobs:
           cargo install mdbook-mermaid --version ${{ env.MDBOOK_MERMAID_VERSION }}
 
       - name: Check build
-        run: ENABLE_LINKCHECK=1 mdbook build
+        run: mdbook build
+        continue-on-error: true
+
+      - name: Save cached Linkcheck
+        id: cache-linkcheck-save
+        if: github.event_name == 'schedule'
+        uses: actions/cache/save@v4
+        with:
+          path: book/linkcheck/cache.json
+          key: linkcheck
 
       - name: Deploy to gh-pages
         if: github.event_name == 'push'
diff --git a/book.toml b/book.toml
index 2f67aecf6..67069d993 100644
--- a/book.toml
+++ b/book.toml
@@ -52,7 +52,9 @@ exclude = [
     # 500 is returned for HEAD request
     "code\\.visualstudio\\.com/docs/editor/tasks",
 ]
-cache-timeout = 86400
+# The scheduled CI runs every day and so we need to reuse a part of the cache
+# in order to face "Server returned 429 Too Many Requests" errors for github.com.
+cache-timeout = 90000
 warning-policy = "error"
 
 [output.html.redirect]

From 10c76e1bfc6fe65c0dd0c3304349ae12339758bb Mon Sep 17 00:00:00 2001
From: Martin Liska <martin.liska@hey.com>
Date: Wed, 8 Jan 2025 17:06:15 +0100
Subject: [PATCH 2/2] Update key

---
 .github/workflows/ci.yml | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1b5c41417..3c45ad164 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -41,7 +41,7 @@ jobs:
         uses: actions/cache/restore@v4
         with:
           path: book/linkcheck/cache.json
-          key: linkcheck
+          key: linkcheck--${{ env.MDBOOK_LINKCHECK2_VERSION }}
 
       - name: Install latest nightly Rust toolchain
         if: steps.mdbook-cache.outputs.cache-hit != 'true'
@@ -58,7 +58,7 @@ jobs:
           cargo install mdbook-mermaid --version ${{ env.MDBOOK_MERMAID_VERSION }}
 
       - name: Check build
-        run: mdbook build
+        run: ENABLE_LINKCHECK=1 mdbook build
         continue-on-error: true
 
       - name: Save cached Linkcheck
@@ -67,7 +67,7 @@ jobs:
         uses: actions/cache/save@v4
         with:
           path: book/linkcheck/cache.json
-          key: linkcheck
+          key: linkcheck--${{ env.MDBOOK_LINKCHECK2_VERSION }}
 
       - name: Deploy to gh-pages
         if: github.event_name == 'push'