Improve infrastructure

.github/workflows/swift.yml

@@ -14,6 +14,15 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
+  spelling:
+    name: Spell Check with Typos
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Actions Repository
+        uses: actions/checkout@v4
+      - name: Spell Check Repo
+        uses: crate-ci/typos@v1.42.3
+
   linting:
     runs-on: macos-26
     steps:
@@ -30,14 +39,20 @@ jobs:
       - linting
     strategy:
       matrix:
-        xcode: ['14.1']
+        xcode: ['26.2']
     steps:
       - uses: actions/checkout@v3
+      - name: "Install just"
+        run: |
+          if ! command -v just >/dev/null; then
+            brew update
+            brew install just
+          fi
       - name: "Select Xcode ${{ matrix.xcode }}"
         run: sudo xcode-select -s /Applications/Xcode_${{ matrix.xcode }}.app
       - name: "Clean and init submodules"
-        run: make init
+        run: just init
       - name: "Run test in debug"
-        run: make testdebug
+        run: just testdebug
       - name: "Run test in production"
-        run: make testprod
+        run: just testprod

.gitignore

@@ -7,4 +7,5 @@ DerivedData/
 .swiftpm/xcode/package.xcworkspace/contents.xcworkspacedata
 scripts/update-libsecp/Package.resolved
 scripts/update-libsecp/.build
+scripts/*.pyc
 scripts/update-libsecp/.swiftpm/xcode/package.xcworkspace/contents.xcworkspacedata

.pre-commit-config.yaml

@@ -0,0 +1,23 @@
+fail_fast: true
+default_install_hook_types: [pre-commit]
+default_stages: [pre-commit]
+repos:
+    - repo: https://github.com/crate-ci/typos
+      rev: v1.42.3
+      hooks:
+          - id: typos
+
+    - repo: local
+      hooks:
+          - id: lint
+            name: lint
+            language: system
+            types: [file, swift]
+            entry: swiftformat . --lint
+            pass_filenames: false
+          - id: unit tests
+            name: unit tests
+            language: system
+            types: [file, swift]
+            entry: swift test
+            pass_filenames: false

.python-version

@@ -0,0 +1 @@
+2.7.18

.swiftformat

@@ -7,10 +7,10 @@
 
 --stripunusedargs closure-only
 --enable marktypes
---disable redundantNilInit,redundantSelf,extensionAccessControl
+--disable redundantNilInit,redundantSelf,extensionAccessControl,simplifyGenericConstraints
 --lineaftermarks false
 --ifdef no-indent
 --header strip
 
 # file options
---exclude .build,Sources/secp256k1,Sources/K1/Support/ThirdyParty,**/*.swift.gyb,**/*.generated.swift
+--exclude .build,Sources/secp256k1,Tests,Sources/K1/Support/ThirdyParty,**/*.swift.gyb,**/*.generated.swift

.swiftlint.yml

@@ -0,0 +1,7 @@
+disabled_rules:
+  - trailing_comma
+
+excluded:
+  - .build
+  - scripts/update-libsecp/.build
+  - Tests/K1Tests/TestCases/