Automate release process

.github/release.yml

@@ -0,0 +1,8 @@
+# .github/release.yml
+
+# Configure automatic release note generation
+# See https://docs.github.com/en/repositories/releasing-projects-on-github/automatically-generated-release-notes
+changelog:
+  exclude:
+    labels:
+      - ignore-for-release

.github/workflows/prepare_release.yml

@@ -0,0 +1,97 @@
+name: Create draft release
+
+on:
+  workflow_dispatch:
+    inputs:
+      release_type:
+        description: 'Release Type'
+        required: true
+        default: 'minor'
+        type: choice
+        options:
+          - major
+          - minor
+          - patch
+
+jobs:
+  Create-Release:
+      runs-on: ubuntu-latest
+
+      permissions:
+        # Give the default GITHUB_TOKEN write permission to commit and push the
+        # added or changed files to the repository.
+        contents: write
+
+      outputs:
+        release_url: ${{ steps.create-draft-release.outputs.url }}
+
+      steps:
+        - name: Checkout code
+          uses: actions/checkout@v4
+          with:
+            ref: ${{ github.head_ref }}
+
+        - name: Update the version
+          id: bump_version
+          shell: pwsh
+          run: |
+            # Extract current version
+            $header = Get-Content ./libdivide.h
+            $major_ver = [int](($header -match "LIBDIVIDE_VERSION_MAJOR")[0] -Split " ")[-1]
+            $minor_ver = [int](($header -match "LIBDIVIDE_VERSION_MINOR")[0] -Split " ")[-1]
+            $patch_ver = [int](($header -match "LIBDIVIDE_VERSION_PATCH")[0] -Split " ")[-1]
+            $current_version=@($major_ver, $minor_ver, $patch_ver) -Join "."
+
+            # Increment version
+            if ("${{ github.event.inputs.release_type }}" -eq "patch") {
+                $patch_ver = $patch_ver + 1
+            } elseif ("${{ github.event.inputs.release_type }}" -eq "minor") {
+                $minor_ver = $minor_ver + 1
+                $patch_ver = 0
+            } else { # Must be major version
+                $major_ver = $major_ver + 1
+                $minor_ver = 0
+                $patch_ver = 0
+            }
+            $new_version=@($major_ver, $minor_ver, $patch_ver) -Join "."
+
+            # Update header file
+            $header = $header -replace "#define LIBDIVIDE_VERSION_MAJOR \d+", "#define LIBDIVIDE_VERSION_MAJOR $major_ver"
+            $header = $header -replace "#define LIBDIVIDE_VERSION_MINOR \d+", "#define LIBDIVIDE_VERSION_MINOR $minor_ver"
+            $header = $header -replace "#define LIBDIVIDE_VERSION_PATCH \d+", "#define LIBDIVIDE_VERSION_PATCH $patch_ver"
+            $header | Set-Content ./libdivide.h
+
+            # Update other files
+            $file="./library.properties"
+            $regex = 'version=(\d+\.\d+(\.\d+)?)'
+            (Get-Content $file) -replace $regex, "version=$new_version" | Set-Content $file
+
+            $file="./CMakeLists.txt"
+            $regex = "set\(LIBDIVIDE_VERSION ""\d+\.\d+(\.\d+)?""\)"
+            (Get-Content $file) -replace $regex, "set(LIBDIVIDE_VERSION ""$new_version"")" | Set-Content $file
+
+            Write-Output "previous_version=$current_version" >> $Env:GITHUB_OUTPUT
+            Write-Output "version=$new_version" >> $Env:GITHUB_OUTPUT
+            Write-Output "major=$major_ver" >> $Env:GITHUB_OUTPUT
+            Write-Output "minor=$minor_ver" >> $Env:GITHUB_OUTPUT
+            Write-Output "patch=$patch_ver" >> $Env:GITHUB_OUTPUT
+
+        # Commit all changed files back to the repository
+        - name: Checkout code
+          uses: stefanzweifel/git-auto-commit-action@v5
+          with:
+            commit_message: Auto increment version to ${{ steps.bump_version.outputs.version }}
+
+        # Create draft release
+        - name: Create draft release
+          id: create-draft-release
+          uses: softprops/action-gh-release@v2
+          with:
+            name: v${{ steps.bump_version.outputs.version }}
+            draft: true
+            generate_release_notes: true
+            tag_name: v${{ steps.bump_version.outputs.version }}
+
+        - name: Generate Summary
+          run: |
+            echo "Created [v${{ steps.bump_version.outputs.version }} draft release](${{ steps.create-draft-release.outputs.url }})" >> $GITHUB_STEP_SUMMARY

libdivide.h

@@ -11,9 +11,12 @@
 #ifndef LIBDIVIDE_H
 #define LIBDIVIDE_H
 
-#define LIBDIVIDE_VERSION "5.1"
 #define LIBDIVIDE_VERSION_MAJOR 5
 #define LIBDIVIDE_VERSION_MINOR 1
+#define LIBDIVIDE_VERSION_PATCH 0
+#define LIBDIVIDE_STR_INNER(s) #s
+#define LIBDIVIDE_STR(s) LIBDIVIDE_STR_INNER(s)
+#define LIBDIVIDE_VERSION (LIBDIVIDE_STR(LIBDIVIDE_VERSION_MAJOR) "." LIBDIVIDE_STR(LIBDIVIDE_VERSION_MINOR) "." LIBDIVIDE_STR(LIBDIVIDE_VERSION_PATCH))
 
 #include <stdint.h>
 

test/tester.cpp

@@ -100,6 +100,7 @@ extern "C" int main(int argc, char *argv[]) {
         }
     }
 
+    std::cout << "Testing libdivide v" << LIBDIVIDE_VERSION << std::endl;
     std::string vecTypes = "";
 #if defined(LIBDIVIDE_SSE2)
     vecTypes += "sse2 ";