use Mint for formatting since it broke with SPM

.github/workflows/check.yaml

@@ -10,10 +10,25 @@ jobs:
   lint:
     runs-on: macos-latest
 
+    # From actions/cache documentation linked to below
+    env:
+      MINT_PATH: .mint/lib
+      MINT_LINK_PATH: .mint/bin
+
     steps:
       - uses: actions/checkout@v4
 
+      # https://github.com/actions/cache/blob/40c3b67b2955d93d83b27ed164edd0756bc24049/examples.md#swift---mint
+      - uses: actions/cache@v3
+        with:
+          path: .mint
+          key: ${{ runner.os }}-mint-${{ hashFiles('**/Mintfile') }}
+          restore-keys: |
+            ${{ runner.os }}-mint-
+
       - run: npm ci
+      - run: brew install mint
+      - run: mint bootstrap
 
       - run: script/format/check
       - run: script/lint/check

.gitignore

@@ -11,3 +11,4 @@ DerivedData/
 # Other things to ignore:
 /node_modules
 /.swiftformat-cache
+/.mint

CONTRIBUTING.md

@@ -1,5 +1,9 @@
 # Contributing
 
+## Requirements
+
+- Mint TODO link then run `mint bootstrap`
+
 TODO
 
 - shellcheck

Mintfile

@@ -0,0 +1,2 @@
+realm/[email protected]
+nicklockwood/[email protected]

Sources/BuildTool/BuildTool.swift

@@ -108,9 +108,9 @@ struct BuildTool: ParsableCommand {
         let runtimeIdentifier = "com.apple.CoreSimulator.SimRuntime.\(destinationPredicate.runtime)"
         let deviceTypeIdentifier = "com.apple.CoreSimulator.SimDeviceType.\(destinationPredicate.deviceType)"
 
-        let matchingDevices = (simctlOutput.devices[runtimeIdentifier] ?? []).filter({ $0.deviceTypeIdentifier == deviceTypeIdentifier }) 
+        let matchingDevices = (simctlOutput.devices[runtimeIdentifier] ?? []).filter { $0.deviceTypeIdentifier == deviceTypeIdentifier }
 
-        guard matchingDevices.count > 0 else {
+        guard !matchingDevices.isEmpty else {
             throw Error.simulatorLookupFailed(message: "Couldn’t find a simulator with runtime \(runtimeIdentifier) and device type \(deviceTypeIdentifier); available devices are \(simctlOutput.devices)")
         }
 

script/format/check

@@ -7,7 +7,5 @@ set -e
 # - SwiftFormat for formatting Swift code
 # - Prettier for formatting everything else (e.g. YAML, JSON, Markdown)
 
-# Without specifying --cache we get a warning of "Failed to write cache file at /Users/lawrence/Library/Caches/com.charcoaldesign.swiftformat/swiftformat.cache."; presumably this is to do with sandboxing restrictions imposed on Swift package scripts.
-swift package plugin --allow-writing-to-package-directory swiftformat --cache .swiftformat-cache --lint .
-
+mint run swiftformat --lint .
 npm run format:check

script/format/fix

@@ -2,7 +2,5 @@
 
 set -e
 
-# (See the `check` script for why we specify --cache. The repetition is because, according to https://github.com/nicklockwood/SwiftFormat/issues/1651#issuecomment-2009943414, you can’t use a .swiftformat file to specify the --cache option.)
-swift package plugin --allow-writing-to-package-directory swiftformat --cache .swiftformat-cache .
-
+mint run swiftformat .
 npm run format:fix

script/lint/check

@@ -2,4 +2,4 @@
 
 set -e
 
-swift package plugin swiftlint
+mint run swiftlint

script/lint/fix

@@ -2,4 +2,4 @@
 
 set -e
 
-swift package plugin --allow-writing-to-package-directory swiftlint --fix
+mint run swiftlint --fix