Auto release via GH Actions (#81)

Co-authored-by: Ben White <ben@posthog.com>

.github/workflows/release.yml

@@ -0,0 +1,38 @@
+name: 'Release'
+on:
+  release:
+    # runs for stable and pre-releases
+    types: [published]
+
+jobs:
+  cancel-previous-workflow:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Cancel Previous Runs
+        uses: styfle/cancel-workflow-action@01ce38bf961b4e243a6342cbade0dbc8ba3f0432 # pin@0.12.0
+        with:
+          access_token: ${{ github.token }}
+
+  release:
+    name: Release
+    runs-on: macos-latest
+    env:
+      COCOAPODS_TRUNK_TOKEN: ${{ secrets.COCOAPODS_TRUNK_TOKEN }} # Using Manoel's token for now
+
+    steps:
+      - name: Git checkout
+        uses: actions/checkout@v4
+
+      - name: Install Cocoapods
+        run: gem install cocoapods
+
+      - name: Update version
+        run: ./scripts/bump-version.sh ${{ github.event.release.tag_name }}
+
+      - name: Commit & push
+        run: |
+          echo "Tag name from github.ref_name: ${{ github.event.release.target_commitish }}"
+          ./scripts/commit-code.sh ${{ github.event.release.target_commitish }}
+  
+      - name: Release
+        run: make releaseCocoaPods

CHANGELOG.md

@@ -1,5 +1,9 @@
 ## Next
 
+## 3.0.0-alpha.1
+
+- First alpha of the new major version of the iOS SDK
+
 ## 2.1.0 - 2023-10-10
 
 - isFeatureEnabled now returns false if disabled [#74](https://github.com/PostHog/posthog-ios/pull/74)

Makefile

@@ -1,4 +1,4 @@
-.PHONY: build buildSdk buildExample format swiftLint swiftFormat test lint bootstrap
+.PHONY: build buildSdk buildExample format swiftLint swiftFormat test lint bootstrap releaseCocoaPods
 
 build: buildSdk buildExample
 
@@ -27,3 +27,6 @@ bootstrap:
 	gem install xcpretty
 	brew install swiftlint
 	brew install swiftformat
+
+releaseCocoaPods:
+	pod trunk push PostHog.podspec --allow-warnings

PostHog/PostHogVersion.swift

@@ -7,4 +7,5 @@
 
 import Foundation
 
+// if you change this, make sure to also change it in the podspec and check if the script scripts/bump-version.sh still works
 let postHogVersion = "3.0.0-alpha.1"

PostHog/Utils/Data+Gzip.swift

@@ -28,7 +28,7 @@
  */
 
 // issues importing scoped classes
-//import struct Foundation.Data
+// import struct Foundation.Data
 import Foundation
 
 #if os(Linux)

PostHogTests/PostHogTest.swift

@@ -1,6 +1,6 @@
+import Foundation
 import Nimble
 import Quick
-import Foundation
 
 @testable import PostHog
 

PostHogTests/SessionManagerTest.swift

@@ -5,10 +5,10 @@
 //  Created by Ben White on 22.03.23.
 //
 
+import Foundation
 import Nimble
 @testable import PostHog
 import Quick
-import Foundation
 
 class SessionManagerTest: QuickSpec {
     override func spec() {

PostHogTests/StorageTest.swift

@@ -5,9 +5,9 @@
 //  Created by Ben White on 08.02.23.
 //
 
+import Foundation
 import Nimble
 import Quick
-import Foundation
 
 @testable import PostHog
 

RELEASING.md

@@ -1,22 +1,14 @@
-# Releasing
-
-1. Update the version in `PostHog.podspec`, `PostHog/Info.plist`, and `version` in `PostHog/Classes/PHGPostHog.m` to the next release version.
-2. Update the `CHANGELOG.md` for the impending release.
-3. `git commit -am "Prepare for release X.Y.Z."` (where X.Y.Z is the new version).
-4. `git tag -a X.Y.Z -m "Version X.Y.Z"` (where X.Y.Z is the new version).
-5. `git push && git push --tags`.
-6. `pod trunk push PostHog.podspec --allow-warnings`.
-7. Go to [GH Releases](https://github.com/PostHog/posthog-ios/releases) and create a new release from the tag you just pushed. Copy the changelog entry into the description and publish the release.
-
-## On Apple Silicon
-
-Run this first:
-
-```bash
-sudo arch -x86_64 gem install ffi
-arch -x86_64 pod install
-```
-
-Then, [configure XCode CLI tools](https://stackoverflow.com/questions/29108172/how-do-i-fix-the-xcrun-unable-to-find-simctl-error).
-
-Finally, prepend `arch -x86_64` to the pod command in the steps above.
+Releasing
+=========
+
+ 1. Update the CHANGELOG.md with the version and date 
+ 2. Go to [GH Releases](https://github.com/PostHog/posthog-ios/releases)
+ 3. Choose a tag name (e.g. `3.0.0`), this is the version number of the release.
+     1. Preview releases follow the pattern `3.0.0-alpha.1`, `3.0.0-beta.1`, `3.0.0-RC.1`
+ 4. Choose a release name (e.g. `3.0.0`), ideally it matches the above.
+ 5. Write a description of the release.
+ 6. Publish the release.
+ 7. GH Action (release.yml) is doing everything else automatically.
+      1. SPM uses the tag name to determine the version, directly from the repo.
+      2. CocoaPods are published.
+ 8. Done.

scripts/bump-version.sh

@@ -0,0 +1,17 @@
+#!/bin/bash
+
+# ./scripts/bump-version.sh <new version>
+# eg ./scripts/bump-version.sh "3.0.0-alpha.1"
+
+set -eux
+
+SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+cd $SCRIPT_DIR/..
+
+NEW_VERSION="$1"
+
+# Replace `postHogVersion` with the given version
+perl -pi -e "s/postHogVersion = \".*\"/postHogVersion = \"$NEW_VERSION\"/" PostHog/PostHogVersion.swift
+
+# Replace `s.version` with the given version
+perl -pi -e "s/s.version          = \".*\"/s.version          = \"$NEW_VERSION\"/" PostHog.podspec

scripts/commit-code.sh

@@ -0,0 +1,19 @@
+#!/bin/bash
+set -euo pipefail
+
+SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+cd $SCRIPT_DIR/..
+
+GITHUB_BRANCH="${1}"
+
+if [[ $(git status) == *"nothing to commit"* ]]; then
+    echo "Nothing to commit."
+else
+    echo "Going to push the changes."
+    git config --global user.name 'PostHog Github Bot'
+    git config --global user.email 'github-bot@posthog.com'
+    git fetch
+    git checkout ${GITHUB_BRANCH}
+    git commit -am "Update version"
+    git push --set-upstream origin ${GITHUB_BRANCH}
+fi