From a25775a3afce305adccc7e93db377dae4b335682 Mon Sep 17 00:00:00 2001
From: Yuval Shavit <dev@yuvalshavit.com>
Date: Sun, 2 Mar 2025 04:39:09 -0500
Subject: [PATCH] create action to prepare releases

---
 .github/workflows/build-release.yml       |   2 +-
 .github/workflows/prepare-new-release.yml | 149 ++++++++++++++++++++++
 2 files changed, 150 insertions(+), 1 deletion(-)
 create mode 100644 .github/workflows/prepare-new-release.yml

diff --git a/.github/workflows/build-release.yml b/.github/workflows/build-release.yml
index 8535433..e06c19e 100644
--- a/.github/workflows/build-release.yml
+++ b/.github/workflows/build-release.yml
@@ -1,4 +1,4 @@
-name: Release
+name: Binaries
 on:
   push:
     branches: [ "main" ]
diff --git a/.github/workflows/prepare-new-release.yml b/.github/workflows/prepare-new-release.yml
new file mode 100644
index 0000000..32ba374
--- /dev/null
+++ b/.github/workflows/prepare-new-release.yml
@@ -0,0 +1,149 @@
+name: Prepare New Release
+
+on:
+  workflow_dispatch:
+    inputs:
+      version_to_release:
+        description: 'version to cut a release as'
+        required: true
+        type: string
+      next_version:
+        description: 'the new dev to prepare (w/o "-dev" suffix)'
+        required: true
+        type: string
+      base_ref:
+        description: 'the git ref to go against'
+        required: false
+        type: string
+        default: main
+      base_ref_version:
+        description: 'verify current dev version (w/o "-dev" suffix)'
+        required: true
+        type: string
+
+jobs:
+  run:
+    runs-on: ubuntu-latest
+    env:
+      GH_TOKEN: ${{ github.token }}
+      RELEASE_VERSION: ${{ github.event.inputs.version_to_release }}
+      NEXT_DEV_VERSION: "${{ github.event.inputs.next_version }}-dev"
+      TAG_NAME: "v${{ github.event.inputs.version_to_release }}"
+    permissions:
+      contents: write
+      pull-requests: write
+
+    steps:
+    - name: Configure git
+      run: |
+        set -euo pipefail
+        git config --global user.name 'github-actions[bot]'
+        git config --global user.email 'github-actions[bot]@users.noreply.github.com'
+
+    - uses: actions/checkout@v2
+      with:
+        ref: ${{ github.event.inputs.base_ref }}
+
+    - name: Check that tag is available
+      run: |
+        if gh release view "$TAG_NAME" ; then
+          echo "::error ::tag $TAG_NAME already exists"
+          exit 1
+        fi
+
+    - name: Check Cargo.toml version
+      run: |
+        set -euo pipefail
+        toml_current_version=$(grep '^version' Cargo.toml | sed 's/version = "\(.*\)"/\1/')
+        expect_version="${VERIFY_VERSION}-dev"
+        if [[ "$toml_current_version" != "$expect_version" ]]; then
+          echo "::error title=bad version::Expected version $expect_version does not match current version $toml_current_version."
+          exit 1
+        fi
+      env:
+        VERIFY_VERSION: ${{ github.event.inputs.base_ref_version }}
+
+    - name: Set up Rust
+      uses: actions-rs/toolchain@v1
+      with:
+        toolchain: stable
+        override: true
+
+    - name: Release Cargo.toml
+      run: |
+        sed -i 's/^version = ".*"/version = "${{ env.RELEASE_VERSION }}"/' Cargo.toml
+        cargo metadata >/dev/null
+
+    - name: Release Commit
+      run: |
+        set -euo pipefail
+        git checkout -b "release-$RELEASE_VERSION"
+        git commit -am "bump version to $RELEASE_VERSION"
+        git push --set-upstream origin "release-$RELEASE_VERSION"
+
+    - name: Release PR
+      run: |
+        gh pr create --title "Release v${RELEASE_VERSION}" --body "Bump version to $RELEASE_VERSION" --base "$TARGET_REF"
+      env:
+        TARGET_REF: ${{ github.event.inputs.base_ref }}
+
+    - name: Dev Cargo.toml
+      run: |
+        sed -i 's/^version = ".*"/version = "${{ env.NEXT_DEV_VERSION }}"/' Cargo.toml
+        cargo metadata >/dev/null
+
+    - name: Dev Commit
+      run: |
+        set -euo pipefail
+        git checkout -b "release-$RELEASE_VERSION-post"
+        git commit -am "bump version to $NEXT_DEV_VERSION"
+        git push --set-upstream origin "release-$RELEASE_VERSION-post"
+
+    - name: Dev PR
+      run: |
+        gh pr create --title "Prepare v${NEXT_DEV_VERSION}" --body "Bump version to $NEXT_DEV_VERSION" --base "release-$RELEASE_VERSION"
+
+    - name: Prepare random dir
+      id: random-dir
+      run: echo "path=$(mktemp -d)" >> "$GITHUB_OUTPUT"
+
+    - name: Find latest build
+      id: latest-build
+      run: |
+        set -euo pipefail
+        run_info="$(gh run list -b "$RUN_REF" -w build-release.yml --limit 1 --json status,conclusion,databaseId)"
+        run_id="$(echo "$run_info" | jq -re '.[].databaseId' )"
+
+        if [[ "$(echo "$run_info" | jq -r '.[].conclusion')" != success ]]; then
+          echo "::error ::Found run $run_id but its conclusion was $(echo "$run_info" | jq '.[].conclusion')"
+          exit 1
+        fi
+        echo "run_id=$run_id" >> "$GITHUB_OUTPUT"
+      env:
+        RUN_REF: ${{ github.event.inputs.base_ref }}
+
+    - name: Download build artifacts
+      run: gh run download "$RUN_ID" -p 'mdq-*' --dir "$TMP_DIR"
+      env:
+        TMP_DIR: ${{ steps.random-dir.outputs.path }}
+        RUN_ID: ${{ steps.latest-build.outputs.run_id }}
+
+    - name: Re-zip build artifacts
+      run: |
+        set -euo pipefail
+        for artifact_name in $(ls -1) ; do
+          zip "${artifact_name}.zip" "$artifact_name"/*
+          rm -rf "$artifact_name"/
+        done
+      working-directory: ${{ steps.random-dir.outputs.path }}
+
+    - name: Create new release
+      id: create_release
+      run: |
+        release_url="$(gh release create "$TAG_NAME" --draft --title "$TAG_NAME" --generate-notes --target "release-$RELEASE_VERSION")"
+        echo "release_url=$release_url" >> "$GITHUB_OUTPUT"
+
+    - name: Upload artifacts
+      run: gh release upload "$TAG_NAME" "$TMP_DIR"/*
+      env:
+        TMP_DIR: ${{ steps.random-dir.outputs.path }}