From fbc2e5783076d9270d0801b5a724331be8f41142 Mon Sep 17 00:00:00 2001
From: Rahul Guha <19rahul2003@gmail.com>
Date: Wed, 15 Oct 2025 18:57:43 +0530
Subject: [PATCH 1/2] add auto release

---
 .github/workflows/auto-release.yml | 99 ++++++++++++++++++++++++++++++
 VERSION                            |  1 +
 2 files changed, 100 insertions(+)
 create mode 100644 .github/workflows/auto-release.yml
 create mode 100644 VERSION

diff --git a/.github/workflows/auto-release.yml b/.github/workflows/auto-release.yml
new file mode 100644
index 0000000..52ace73
--- /dev/null
+++ b/.github/workflows/auto-release.yml
@@ -0,0 +1,99 @@
+name: Auto Release on Release Branch
+
+on:
+  pull_request:
+    types: [closed]
+    branches:
+      - release
+
+permissions:
+  contents: write
+
+jobs:
+  auto-release:
+    if: github.event.pull_request.merged == true
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Setup Zig
+        uses: goto-bus-stop/setup-zig@v2
+        with:
+          version: 0.14.0
+
+      - name: Read VERSION file
+        id: get_version
+        run: |
+          VERSION=$(cat VERSION)
+          echo "version=$VERSION" >> $GITHUB_OUTPUT
+          echo "tag=v$VERSION" >> $GITHUB_OUTPUT
+
+      - name: Check if tag exists
+        id: check_tag
+        run: |
+          if git rev-parse "v${{ steps.get_version.outputs.version }}" >/dev/null 2>&1; then
+            echo "exists=true" >> $GITHUB_OUTPUT
+          else
+            echo "exists=false" >> $GITHUB_OUTPUT
+          fi
+
+      - name: Run tests
+        if: steps.check_tag.outputs.exists == 'false'
+        run: zig build test
+
+      - name: Build library
+        if: steps.check_tag.outputs.exists == 'false'
+        run: zig build
+
+      - name: Update build.zig.zon version
+        if: steps.check_tag.outputs.exists == 'false'
+        run: |
+          VERSION="${{ steps.get_version.outputs.version }}"
+          sed -i "s/\.version = \".*\"/\.version = \"$VERSION\"/" build.zig.zon
+
+      - name: Generate changelog
+        if: steps.check_tag.outputs.exists == 'false'
+        id: changelog
+        run: |
+          PREVIOUS_TAG=$(git describe --tags --abbrev=0 HEAD^ 2>/dev/null || echo "")
+          if [ -z "$PREVIOUS_TAG" ]; then
+            CHANGELOG=$(git log --pretty=format:"- %s (%h)" --no-merges)
+          else
+            CHANGELOG=$(git log ${PREVIOUS_TAG}..HEAD --pretty=format:"- %s (%h)" --no-merges)
+          fi
+          echo "changelog<<EOF" >> $GITHUB_OUTPUT
+          echo "$CHANGELOG" >> $GITHUB_OUTPUT
+          echo "EOF" >> $GITHUB_OUTPUT
+
+      - name: Commit version update
+        if: steps.check_tag.outputs.exists == 'false'
+        run: |
+          git config --local user.email "action@github.com"
+          git config --local user.name "GitHub Action"
+          git add build.zig.zon
+          git diff --staged --quiet || git commit -m "chore: bump version to ${{ steps.get_version.outputs.version }}"
+
+      - name: Create and push tag
+        if: steps.check_tag.outputs.exists == 'false'
+        run: |
+          git tag -a "v${{ steps.get_version.outputs.version }}" -m "Release v${{ steps.get_version.outputs.version }}"
+          git push origin "v${{ steps.get_version.outputs.version }}"
+
+      - name: Create GitHub Release
+        if: steps.check_tag.outputs.exists == 'false'
+        uses: actions/create-release@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          tag_name: v${{ steps.get_version.outputs.version }}
+          release_name: Release v${{ steps.get_version.outputs.version }}
+          body: |
+            ## Changes in v${{ steps.get_version.outputs.version }}
+
+            ${{ steps.changelog.outputs.changelog }}
+          draft: false
+          prerelease: false
diff --git a/VERSION b/VERSION
new file mode 100644
index 0000000..8a9ecc2
--- /dev/null
+++ b/VERSION
@@ -0,0 +1 @@
+0.0.1
\ No newline at end of file

From ddfec3746d2460c577ff6e156bf37f95c0f28c1d Mon Sep 17 00:00:00 2001
From: Rahul Guha <19rahul2003@gmail.com>
Date: Wed, 15 Oct 2025 19:17:33 +0530
Subject: [PATCH 2/2] add more info

---
 .github/workflows/auto-release.yml | 113 +++++++++++++++++++++++------
 1 file changed, 91 insertions(+), 22 deletions(-)

diff --git a/.github/workflows/auto-release.yml b/.github/workflows/auto-release.yml
index 52ace73..70c8d62 100644
--- a/.github/workflows/auto-release.yml
+++ b/.github/workflows/auto-release.yml
@@ -53,47 +53,116 @@ jobs:
         if: steps.check_tag.outputs.exists == 'false'
         run: |
           VERSION="${{ steps.get_version.outputs.version }}"
-          sed -i "s/\.version = \".*\"/\.version = \"$VERSION\"/" build.zig.zon
+          sed -i "s/\.version = \"[^\"]*\"/\.version = \"$VERSION\"/" build.zig.zon
 
       - name: Generate changelog
         if: steps.check_tag.outputs.exists == 'false'
         id: changelog
         run: |
-          PREVIOUS_TAG=$(git describe --tags --abbrev=0 HEAD^ 2>/dev/null || echo "")
-          if [ -z "$PREVIOUS_TAG" ]; then
-            CHANGELOG=$(git log --pretty=format:"- %s (%h)" --no-merges)
+          VERSION="${{ steps.get_version.outputs.version }}"
+
+          # Get previous tag
+          PREV_TAG=$(git describe --tags --abbrev=0 2>/dev/null || echo "")
+
+          if [ -z "$PREV_TAG" ]; then
+            echo "## Initial Release" > CHANGELOG.md
+            echo "" >> CHANGELOG.md
+            echo "First release of zig-snappy - A Zig implementation of Snappy compression." >> CHANGELOG.md
+            echo "" >> CHANGELOG.md
+            echo "### Features" >> CHANGELOG.md
+            echo "- Snappy compression implementation" >> CHANGELOG.md
+            echo "- Snappy decompression implementation" >> CHANGELOG.md
+            echo "- CRC32C checksum support" >> CHANGELOG.md
+            echo "- Comprehensive test suite" >> CHANGELOG.md
           else
-            CHANGELOG=$(git log ${PREVIOUS_TAG}..HEAD --pretty=format:"- %s (%h)" --no-merges)
+            echo "## Changes since $PREV_TAG" > CHANGELOG.md
+            echo "" >> CHANGELOG.md
+            git log "$PREV_TAG"..HEAD --pretty=format:"- %s (%h)" >> CHANGELOG.md
           fi
-          echo "changelog<<EOF" >> $GITHUB_OUTPUT
-          echo "$CHANGELOG" >> $GITHUB_OUTPUT
-          echo "EOF" >> $GITHUB_OUTPUT
+
+          cat CHANGELOG.md
 
       - name: Commit version update
         if: steps.check_tag.outputs.exists == 'false'
         run: |
-          git config --local user.email "action@github.com"
-          git config --local user.name "GitHub Action"
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
           git add build.zig.zon
           git diff --staged --quiet || git commit -m "chore: bump version to ${{ steps.get_version.outputs.version }}"
 
-      - name: Create and push tag
+      - name: Push version update
+        if: steps.check_tag.outputs.exists == 'false'
+        run: |
+          git push origin release
+
+      - name: Create Git tag
         if: steps.check_tag.outputs.exists == 'false'
         run: |
-          git tag -a "v${{ steps.get_version.outputs.version }}" -m "Release v${{ steps.get_version.outputs.version }}"
-          git push origin "v${{ steps.get_version.outputs.version }}"
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+          git tag -a "${{ steps.get_version.outputs.tag }}" -m "Release ${{ steps.get_version.outputs.tag }}"
+          git push origin "${{ steps.get_version.outputs.tag }}"
 
       - name: Create GitHub Release
         if: steps.check_tag.outputs.exists == 'false'
-        uses: actions/create-release@v1
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        uses: softprops/action-gh-release@v2
         with:
-          tag_name: v${{ steps.get_version.outputs.version }}
-          release_name: Release v${{ steps.get_version.outputs.version }}
-          body: |
-            ## Changes in v${{ steps.get_version.outputs.version }}
-
-            ${{ steps.changelog.outputs.changelog }}
+          tag_name: ${{ steps.get_version.outputs.tag }}
+          name: Release ${{ steps.get_version.outputs.tag }}
+          body_path: CHANGELOG.md
           draft: false
           prerelease: false
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Calculate tarball hash
+        if: steps.check_tag.outputs.exists == 'false'
+        id: tarball_hash
+        run: |
+          VERSION="${{ steps.get_version.outputs.version }}"
+          TARBALL_URL="https://github.com/${{ github.repository }}/archive/v${VERSION}.tar.gz"
+
+          # Download and calculate hash
+          curl -L "$TARBALL_URL" -o release.tar.gz
+          HASH=$(zig fetch release.tar.gz 2>&1 | grep -o '12[0-9a-f]*' || echo "")
+
+          if [ -z "$HASH" ]; then
+            echo "Could not calculate hash automatically"
+            echo "Users can get the hash by running:"
+            echo "   zig fetch --save $TARBALL_URL"
+          else
+            echo "hash=$HASH" >> $GITHUB_OUTPUT
+            echo "Tarball hash: $HASH"
+          fi
+
+      - name: Post release information
+        if: steps.check_tag.outputs.exists == 'false'
+        run: |
+          echo "=========================================================================="
+          echo "Release ${{ steps.get_version.outputs.tag }} created successfully!"
+          echo "=========================================================================="
+          echo ""
+          echo "To use this release in your project's build.zig.zon:"
+          echo ""
+          echo ".dependencies = .{"
+          echo "    .snappy = .{"
+          echo "        .url = \"https://github.com/${{ github.repository }}/archive/${{ steps.get_version.outputs.tag }}.tar.gz\","
+          echo "        .hash = \"${{ steps.tarball_hash.outputs.hash }}\","
+          echo "    },"
+          echo "},"
+          echo ""
+          echo "=========================================================================="
+
+      - name: Skip release (tag exists)
+        if: steps.check_tag.outputs.exists == 'true'
+        run: |
+          echo "=========================================================================="
+          echo "Skipping release - tag ${{ steps.get_version.outputs.tag }} already exists"
+          echo "=========================================================================="
+          echo ""
+          echo "To create a new release:"
+          echo "1. Update the VERSION file with a new version number"
+          echo "2. Commit the change"
+          echo "3. Create and merge a PR to the release branch"
+          echo ""
+          echo "=========================================================================="