Update pre-commit hook (#5)

* Update `pre-commit` hook

* Fix `SwiftLint` warnings

* Update `CHANGELOG.md`

CHANGELOG.md

@@ -4,6 +4,8 @@ All notable changes to this project will be documented in this file.
 ## [Unreleased]
 
 ## Added
+- Updating pre-commit hook rules
+  - Added in Pull Request [#5](https://github.com/space-code/atomic/pull/5).
 
 - Integrate `CodeCov`
   - Added in Pull Request [#4](https://github.com/space-code/atomic/pull/4).

Sources/Atomic/Classes/Core/Atomic/Atomic.swift

@@ -68,7 +68,7 @@ public final class Atomic<Value> {
 
 extension Atomic: Equatable where Value: Equatable {
     public static func == (lhs: Atomic<Value>, rhs: Atomic<Value>) -> Bool {
-        lhs.read { left in rhs.read { right in left == right }}
+        lhs.read { left in rhs.read { right in left == right } }
     }
 }
 

Sources/Atomic/Classes/Helpers/Lock/UnfairLock.swift

@@ -17,7 +17,7 @@ final class UnfairLock {
     // MARK: Initialization
 
     /// Initializes an UnfairLock instance.
-    public init() {
+    init() {
         unfairLock = .allocate(capacity: 1)
         unfairLock.initialize(to: os_unfair_lock())
     }

hooks/pre-commit

@@ -8,4 +8,31 @@ git diff --diff-filter=d --staged --name-only | grep -e '\.swift$' | while read
   fi
 done
 
-swiftlint
+LINT=$(which mint)
+if [[ -e "${LINT}" ]]; then
+    # Export files in SCRIPT_INPUT_FILE_$count to lint against later
+    count=0
+    while IFS= read -r file_path; do
+        export SCRIPT_INPUT_FILE_$count="$file_path"
+        count=$((count + 1))
+    done < <(git diff --name-only --cached --diff-filter=d | grep ".swift$")
+    export SCRIPT_INPUT_FILE_COUNT=$count
+
+    if [ "$count" -eq 0 ]; then
+        echo "No files to lint!"
+        exit 0
+    fi
+
+    echo "Found $count lintable files! Linting now.."
+    mint run swiftlint --use-script-input-files --strict --config .swiftlint.yml
+    RESULT=$? # swiftline exit value is number of errors
+
+    if [ $RESULT -eq 0 ]; then
+        echo "🎉  Well done. No violation."
+    fi
+    exit $RESULT
+else
+    echo "⚠️  WARNING: SwiftLint not found"
+    echo "⚠️  You might want to edit .git/hooks/pre-commit to locate your swiftlint"
+    exit 0
+fi