From 181a2f4f2e3bed8dc6be5630e9bfb3362194ab3a Mon Sep 17 00:00:00 2001
From: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
Date: Fri, 14 Nov 2025 11:59:19 +0200
Subject: [PATCH] gh-139596: Cease caching config.cache & ccache in GH Actions
 (#141451)

---
 .github/workflows/build.yml            | 5 -----
 .github/workflows/reusable-context.yml | 9 ---------
 .github/workflows/reusable-macos.yml   | 3 ---
 .github/workflows/reusable-san.yml     | 3 ---
 .github/workflows/reusable-ubuntu.yml  | 3 ---
 .github/workflows/reusable-wasi.yml    | 6 +-----
 .gitignore                             | 1 -
 7 files changed, 1 insertion(+), 29 deletions(-)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index a0f60c30ac..8e15400e49 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -205,7 +205,6 @@ jobs:
           free-threading: true
     uses: ./.github/workflows/reusable-macos.yml
     with:
-      config_hash: ${{ needs.build-context.outputs.config-hash }}
       free-threading: ${{ matrix.free-threading }}
       os: ${{ matrix.os }}
 
@@ -237,7 +236,6 @@ jobs:
           bolt: true
     uses: ./.github/workflows/reusable-ubuntu.yml
     with:
-      config_hash: ${{ needs.build-context.outputs.config-hash }}
       bolt-optimizations: ${{ matrix.bolt }}
       free-threading: ${{ matrix.free-threading }}
       os: ${{ matrix.os }}
@@ -414,8 +412,6 @@ jobs:
     needs: build-context
     if: needs.build-context.outputs.run-tests == 'true'
     uses: ./.github/workflows/reusable-wasi.yml
-    with:
-      config_hash: ${{ needs.build-context.outputs.config-hash }}
 
   test-hypothesis:
     name: "Hypothesis tests on Ubuntu"
@@ -600,7 +596,6 @@ jobs:
     uses: ./.github/workflows/reusable-san.yml
     with:
       sanitizer: ${{ matrix.sanitizer }}
-      config_hash: ${{ needs.build-context.outputs.config-hash }}
       free-threading: ${{ matrix.free-threading }}
 
   cross-build-linux:
diff --git a/.github/workflows/reusable-context.yml b/.github/workflows/reusable-context.yml
index d2668ddcac..66c7cc47de 100644
--- a/.github/workflows/reusable-context.yml
+++ b/.github/workflows/reusable-context.yml
@@ -17,9 +17,6 @@ on:  # yamllint disable-line rule:truthy
       #        || 'falsy-branch'
       #   }}
       #
-      config-hash:
-        description: Config hash value for use in cache keys
-        value: ${{ jobs.compute-changes.outputs.config-hash }}  # str
       run-docs:
         description: Whether to build the docs
         value: ${{ jobs.compute-changes.outputs.run-docs }}  # bool
@@ -42,7 +39,6 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 10
     outputs:
-      config-hash: ${{ steps.config-hash.outputs.hash }}
       run-ci-fuzz: ${{ steps.changes.outputs.run-ci-fuzz }}
       run-docs: ${{ steps.changes.outputs.run-docs }}
       run-tests: ${{ steps.changes.outputs.run-tests }}
@@ -100,8 +96,3 @@ jobs:
         GITHUB_EVENT_NAME: ${{ github.event_name }}
         CCF_TARGET_REF: ${{ github.base_ref || github.event.repository.default_branch }}
         CCF_HEAD_REF: ${{ github.event.pull_request.head.sha || github.sha }}
-
-    - name: Compute hash for config cache key
-      id: config-hash
-      run: |
-        echo "hash=${{ hashFiles('configure', 'configure.ac', '.github/workflows/build.yml') }}" >> "$GITHUB_OUTPUT"
diff --git a/.github/workflows/reusable-macos.yml b/.github/workflows/reusable-macos.yml
index d85c46b96f..98d557ba1e 100644
--- a/.github/workflows/reusable-macos.yml
+++ b/.github/workflows/reusable-macos.yml
@@ -3,9 +3,6 @@ name: Reusable macOS
 on:
   workflow_call:
     inputs:
-      config_hash:
-        required: true
-        type: string
       free-threading:
         required: false
         type: boolean
diff --git a/.github/workflows/reusable-san.yml b/.github/workflows/reusable-san.yml
index 7fe96d1b23..c601d0b733 100644
--- a/.github/workflows/reusable-san.yml
+++ b/.github/workflows/reusable-san.yml
@@ -6,9 +6,6 @@ on:
       sanitizer:
         required: true
         type: string
-      config_hash:
-        required: true
-        type: string
       free-threading:
         description: Whether to use free-threaded mode
         required: false
diff --git a/.github/workflows/reusable-ubuntu.yml b/.github/workflows/reusable-ubuntu.yml
index 7b93b5f51b..0c1ebe29ae 100644
--- a/.github/workflows/reusable-ubuntu.yml
+++ b/.github/workflows/reusable-ubuntu.yml
@@ -3,9 +3,6 @@ name: Reusable Ubuntu
 on:
   workflow_call:
     inputs:
-      config_hash:
-        required: true
-        type: string
       bolt-optimizations:
         description: Whether to enable BOLT optimizations
         required: false
diff --git a/.github/workflows/reusable-wasi.yml b/.github/workflows/reusable-wasi.yml
index 8f412288f5..a309ef4e7f 100644
--- a/.github/workflows/reusable-wasi.yml
+++ b/.github/workflows/reusable-wasi.yml
@@ -2,10 +2,6 @@ name: Reusable WASI
 
 on:
   workflow_call:
-    inputs:
-      config_hash:
-        required: true
-        type: string
 
 env:
   FORCE_COLOR: 1
@@ -53,7 +49,7 @@ jobs:
     - name: "Configure build Python"
       run: python3 Tools/wasm/wasi configure-build-python -- --config-cache --with-pydebug
     - name: "Make build Python"
-      run: python3 Tools/wasm/wasi.py make-build-python
+      run: python3 Tools/wasm/wasi make-build-python
     - name: "Configure host"
       # `--with-pydebug` inferred from configure-build-python
       run: python3 Tools/wasm/wasi configure-host -- --config-cache
diff --git a/.gitignore b/.gitignore
index 2bf4925647..4ea2fd9655 100644
--- a/.gitignore
+++ b/.gitignore
@@ -135,7 +135,6 @@ Tools/unicode/data/
 /config.log
 /config.status
 /config.status.lineno
-# hendrikmuhs/ccache-action@v1
 /.ccache
 /cross-build/
 /jit_stencils*.h