Switch to fastlane provided by brew to simplify project (#112)

# Description

- Trade-offs:
- brew-managed fastlane may lag behind the fastlane gem (because of course the gem is the fastest distribution)
- but this is much, much easier to manage and removes warnings and hopefully improves overall CI stability
- Update README for Ruby steps and Xcode version
- Remove Gemfile because brew handles this
- Remove .ruby-version

> fastlane can be installed in multiple ways. The preferred method is
with Bundler. fastlane can also be installed directly through Homebrew
(if on macOS). It is possible to use macOS's system Ruby, but it's not
recommended, as it can be hard to manage dependencies and cause
conflicts.
-- https://docs.fastlane.tools/

Author: aokj4ck

.github/workflows/ios.yml

@@ -32,11 +32,7 @@ jobs:
       - name: Set Xcode 26.0
         run: sudo xcode-select -s /Applications/Xcode_26.0.app
       - name: Install tools
-        run: |
-          brew install rbenv
-          brew install ruby-build
-          brew install gh
-          bundler install
+        run: brew bundle install
       - name: Set up xcconfig secrets (see README.md#quick-start)
         env:
           BIKE_INDEX_DEVELOPMENT_XCCONFIG: ${{ secrets.BIKE_INDEX_DEVELOPMENT_XCCONFIG }}
@@ -47,13 +43,11 @@ jobs:
           BIKE_INDEX_TEST_CREDENTIALS: ${{ secrets.BIKE_INDEX_TEST_CREDENTIALS }}
         run: |
           echo "$BIKE_INDEX_TEST_CREDENTIALS" >> Test-credentials.xcconfig
-      - name: Install iOS 26 simulator
-        run: xcodebuild -downloadPlatform iOS
       - name: List available simulators
         run: xcodebuild -scheme Debug\ \(development\) -project BikeIndex.xcodeproj -showdestinations
       - name: Run tests
         id: fastlane-ios-tests
-        run: bundle exec fastlane ios tests_iphone16
+        run: fastlane ios tests_iphone16
       - uses: actions/upload-artifact@v4
         if: always()
         with:
@@ -85,11 +79,7 @@ jobs:
       - name: Set Xcode 26.0
         run: sudo xcode-select -s /Applications/Xcode_26.0.app
       - name: Install tools
-        run: |
-          brew install rbenv
-          brew install ruby-build
-          brew install gh
-          bundler install
+        run: brew bundle install
       - name: Set up xcconfig secrets (see README.md#quick-start)
         env:
           BIKE_INDEX_DEVELOPMENT_XCCONFIG: ${{ secrets.BIKE_INDEX_DEVELOPMENT_XCCONFIG }}
@@ -100,13 +90,11 @@ jobs:
           BIKE_INDEX_TEST_CREDENTIALS: ${{ secrets.BIKE_INDEX_TEST_CREDENTIALS }}
         run: |
           echo "$BIKE_INDEX_TEST_CREDENTIALS" >> Test-credentials.xcconfig
-      - name: Install iOS 26 simulator
-        run: xcodebuild -downloadPlatform iOS
       - name: List available simulators
         run: xcodebuild -scheme Debug\ \(development\) -project BikeIndex.xcodeproj -showdestinations
       - name: Run tests
         id: fastlane-ios-tests
-        run: bundle exec fastlane ios tests_iphone16plus
+        run: fastlane ios tests_iphone16plus
       - uses: actions/upload-artifact@v4
         if: always()
         with:
@@ -138,11 +126,7 @@ jobs:
       - name: Set Xcode 26.0
         run: sudo xcode-select -s /Applications/Xcode_26.0.app
       - name: Install tools
-        run: |
-          brew install rbenv
-          brew install ruby-build
-          brew install gh
-          bundler install
+        run: brew bundle install
       - name: Set up xcconfig secrets (see README.md#quick-start)
         env:
           BIKE_INDEX_DEVELOPMENT_XCCONFIG: ${{ secrets.BIKE_INDEX_DEVELOPMENT_XCCONFIG }}
@@ -153,13 +137,11 @@ jobs:
           BIKE_INDEX_TEST_CREDENTIALS: ${{ secrets.BIKE_INDEX_TEST_CREDENTIALS }}
         run: |
           echo "$BIKE_INDEX_TEST_CREDENTIALS" >> Test-credentials.xcconfig
-      - name: Install iOS 26 simulator
-        run: xcodebuild -downloadPlatform iOS
       - name: List available simulators
         run: xcodebuild -scheme Debug\ \(development\) -project BikeIndex.xcodeproj -showdestinations
       - name: Run tests
         id: fastlane-ios-tests
-        run: bundle exec fastlane ios tests_ipad
+        run: fastlane ios tests_ipad
       - uses: actions/upload-artifact@v4
         if: always()
         with:

.ruby-version

@@ -58,8 +58,6 @@
 		04566C7D2E67475E00E3EC6E /* Scanfile */ = {isa = PBXFileReference; lastKnownFileType = text; path = Scanfile; sourceTree = "<group>"; };
 		04566C7F2E67475E00E3EC6E /* update-icons.sh */ = {isa = PBXFileReference; lastKnownFileType = text.script.sh; path = "update-icons.sh"; sourceTree = "<group>"; };
 		0496C6702CB36BED00B88D1B /* Brewfile */ = {isa = PBXFileReference; explicitFileType = text.script.ruby; path = Brewfile; sourceTree = "<group>"; };
-		0496C6712CB36BF100B88D1B /* .ruby-version */ = {isa = PBXFileReference; lastKnownFileType = text; path = ".ruby-version"; sourceTree = "<group>"; };
-		0496C6722CB36BF600B88D1B /* Gemfile */ = {isa = PBXFileReference; explicitFileType = text.script.ruby; path = Gemfile; sourceTree = "<group>"; };
 		04D80BB62D8673F200E29577 /* Test-credentials.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; path = "Test-credentials.xcconfig"; sourceTree = "<group>"; };
 		04D80BB72D8673F200E29577 /* Test-credentials-template.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; path = "Test-credentials-template.xcconfig"; sourceTree = "<group>"; };
 		04F4B8F72B098ADB009442B5 /* BikeIndex.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = BikeIndex.app; sourceTree = BUILT_PRODUCTS_DIR; };
@@ -193,8 +191,6 @@
 				04CDF1632D3C344800F90515 /* UITests */,
 				04CDF1502D3C344500F90515 /* UnitTests */,
 				0496C6702CB36BED00B88D1B /* Brewfile */,
-				0496C6722CB36BF600B88D1B /* Gemfile */,
-				0496C6712CB36BF100B88D1B /* .ruby-version */,
 				0423F2632E6CA34F00199160 /* .swift-format */,
 				04566C802E67475E00E3EC6E /* scripts */,
 				04566C792E67475E00E3EC6E /* docs */,

BikeIndex.xcodeproj/project.pbxproj

@@ -1,4 +1 @@
-tap "homebrew/bundle"
-brew "rbenv"
-brew "ruby-build"
-brew "gh"
+brew "fastlane"