Merge pull request #2642 from jandubois/brew-install-version

Use script to pick the qemu formula for the desired version

Author: jandubois

.github/workflows/test.yml

@@ -370,7 +370,6 @@ jobs:
 
   upgrade:
     name: "Upgrade test"
-    # The QEMU bottle URL needs to be updated when the runner is upgraded from Monterey
     runs-on: macos-12
     timeout-minutes: 120
     strategy:
@@ -388,15 +387,14 @@ jobs:
       with:
         template: https://raw.githubusercontent.com/lima-vm/lima/${{ matrix.oldver }}/examples/ubuntu-lts.yaml
     - name: Install test dependencies
+      env:
+        # brew-install-version.sh calls `gh`, which needs the token
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       run: |
         brew install bash coreutils
         # QEMU 9.1.0 seems to break on GitHub runners, both on Monterey and Ventura
         # We revert back to 8.2.1, which seems to work fine
-        # The SHA1 for the Monterey bottle comes from https://github.com/Homebrew/homebrew-core/blob/4c7ffca/Formula/q/qemu.rb
-        brew uninstall --ignore-dependencies --force qemu
-        curl -L -o qemu-8.2.1.monterey.bottle.tar.gz -H "Authorization: Bearer QQ==" \
-            https://ghcr.io/v2/homebrew/core/qemu/blobs/sha256:41c77f6bac3e8c1664c665fbe2b19b19ee9da57f8e1ad6697348286710cc3575
-        brew install --ignore-dependencies ./qemu-8.2.1.monterey.bottle.tar.gz
+        ./hack/brew-install-version.sh qemu 8.2.1
     - name: Test
       uses: nick-fields/retry@v3
       with:

hack/brew-install-version.sh

@@ -0,0 +1,32 @@
+#!/bin/bash
+# This script only works for formulas in the homebrew-core
+
+set -eu -o pipefail
+
+FORMULA=$1
+VERSION=$2
+
+export HOMEBREW_NO_AUTO_UPDATE=1
+export HOMEBREW_NO_INSTALL_UPGRADE=1
+export HOMEBREW_NO_INSTALL_CLEANUP=1
+
+TAP=lima/tap
+if ! brew tap | grep -q "^${TAP}\$"; then
+	brew tap-new "$TAP"
+fi
+
+# Get the commit id for the commit that updated this bottle
+SHA=$(gh search commits --repo homebrew/homebrew-core "${FORMULA}: update ${VERSION} bottle" --json sha --jq "last|.sha")
+if [[ -z $SHA ]]; then
+	echo "${FORMULA} ${VERSION} not found"
+	exit 1
+fi
+
+OUTPUT="$(brew --repo "$TAP")/Formula/${FORMULA}.rb"
+RAW="https://raw.githubusercontent.com/Homebrew/homebrew-core"
+curl -s "${RAW}/${SHA}/Formula/${FORMULA::1}/${FORMULA}.rb" -o "$OUTPUT"
+
+if brew ls -1 | grep -q "^${FORMULA}\$"; then
+	brew uninstall "$FORMULA" --ignore-dependencies
+fi
+brew install "${TAP}/${FORMULA}"