From 911847efc45abc90fea849ece545b2cda63e858c Mon Sep 17 00:00:00 2001
From: Mike Kruskal <mkruskal@google.com>
Date: Thu, 16 Feb 2023 11:42:17 -0800
Subject: [PATCH] Cache our ccache download to avoid network flakes from choco.

Chocolatey doesn't support any caching, so we're moving back to downloading the exe directly.  This issue is responsible for a 5-10% flake rate in our windows cmake builds

PiperOrigin-RevId: 510202223
---
 .../internal/ccache-setup-windows/action.yml  | 36 +++++++++++++++++--
 1 file changed, 34 insertions(+), 2 deletions(-)

diff --git a/.github/actions/internal/ccache-setup-windows/action.yml b/.github/actions/internal/ccache-setup-windows/action.yml
index a42e7bf8a8..7b9f9925b3 100644
--- a/.github/actions/internal/ccache-setup-windows/action.yml
+++ b/.github/actions/internal/ccache-setup-windows/action.yml
@@ -16,9 +16,41 @@ runs:
         arch: x64
         vsversion: '2019'
 
-    - name: Install ccache
+    - name: Setup ccache path
       shell: bash
-      run: choco install ccache --version=4.7.4
+      run: |
+        echo "CCACHE_EXE_PATH=$LOCALAPPDATA\ccache-${{ inputs.ccache-version }}-windows-x86_64" >> $GITHUB_ENV
+        echo "$LOCALAPPDATA\ccache-${{ inputs.ccache-version }}-windows-x86_64" >> $GITHUB_PATH
+
+    - name: Add ccache to Powershell path
+      shell: pwsh
+      run: echo "%LOCALAPPDATA%\ccache-${{ inputs.ccache-version }}-windows-x86_64" | Out-File -FilePath $env:GITHUB_PATH -Encoding utf8 -Append
+
+    - name: Setup caching of ccache download
+      if: ${{ github.event_name != 'pull_request' && github.event_name != 'pull_request_target' }}
+      id: ccache-cache
+      uses: actions/cache@627f0f41f6904a5b1efbaed9f96d9eb58e92e920 # v3.2.4
+      with:
+        path: ${{ env.CCACHE_EXE_PATH }}
+        key: ccache-exe-${{ inputs.ccache-version }}
+
+    - name: Restore ccache download
+      if: ${{ github.event_name == 'pull_request' || github.event_name == 'pull_request_target' }}
+      id: ccache-restore
+      uses: actions/cache/restore@627f0f41f6904a5b1efbaed9f96d9eb58e92e920 # v3.2.4
+      with:
+        path: ${{ env.CCACHE_EXE_PATH }}
+        key: ccache-exe-${{ inputs.ccache-version }}
+
+    - name: Download ccache
+      shell: bash
+      if: ${{ steps.ccache-cache.outputs.cache-hit != 'true' && steps.ccache-restore.outputs.cache-hit != 'true'}}
+      run: |
+        cd $LOCALAPPDATA
+        curl -kLSs "https://github.com/ccache/ccache/releases/download/v${{ inputs.ccache-version }}/ccache-${{ inputs.ccache-version }}-windows-x86_64.zip" -o ccache.zip
+        unzip ccache.zip
+        rm ccache.zip
+        ccache --version
 
     - name: Configure ccache environment variables
       shell: pwsh