Add Swiftlint

script/swiftlint.sh

@@ -0,0 +1,48 @@
+#!/bin/sh
+
+# Go to git repo root level
+cd $(git rev-parse --show-toplevel)
+
+if [[ "$BUILD_DIR" == *"IBDesignables"* ]] || [[ "$BUILD_DIR" == *"Previews"* ]] ; then
+    echo "not linting for IBDesignables/SwiftUI Previews builds";
+    exit 0
+fi
+
+SWIFT_LINT=$(which swiftlint)
+
+if [[ -z $SWIFT_LINT ]] ; then
+    echo "warning: SwiftLint not installed, please download it from https://github.com/realm/SwiftLint"
+    exit 0
+fi
+    
+if [[ $RUN_CLANG_STATIC_ANALYZER == "YES" ]] ; then
+    time $SWIFT_LINT
+else
+    COUNT=0
+
+    ##### Check for modified git files #####
+    FILES=$(git diff --name-only | grep -iv "^carthage" | grep -iv "^pods" | grep -iv "^vendor" | grep -v "R2" | grep ".swift$")
+    if [ ! -z "$FILES" ]; then
+        while read FILE_PATH; do
+            export SCRIPT_INPUT_FILE_$COUNT=$FILE_PATH
+            COUNT=$((COUNT + 1))
+        done <<< "$FILES"
+    fi
+
+    ##### Check for modified files in unstaged/Staged area #####
+    FILES=$(git diff --name-only --cached --diff-filter=d | grep -iv "^carthage" | grep -iv "^pods" | grep -iv "^vendor" | grep -v "R2" | grep ".swift$")
+    if [ ! -z "$FILES" ]; then
+        while read FILE_PATH; do
+            export SCRIPT_INPUT_FILE_$COUNT=$FILE_PATH
+            COUNT=$((COUNT + 1))
+        done <<< "$FILES"
+    fi
+
+    ##### Make the count avilable as global variable #####
+    export SCRIPT_INPUT_FILE_COUNT=$COUNT
+    env | grep SCRIPT_INPUT_FILE_
+
+    if [[ COUNT -ne 0 ]] ; then
+        time $SWIFT_LINT --use-script-input-files
+    fi
+fi