Adds remote pre-commit installer, which includes automatic fix for linter

lint.sh

@@ -1,13 +1,19 @@
 #!/bin/bash
 
+FIX=false
+
+if [[ "$1" == "--fix" ]]; then
+    FIX=true
+fi
+
 if [[ -n "$CI" ]]; then
     echo "Skipping SwiftLint run in CI"
     exit 0
 fi
 
 # Add brew into PATH
 if [[ -f /opt/homebrew/bin/brew ]]; then
-   eval $(/opt/homebrew/bin/brew shellenv)
+    eval $(/opt/homebrew/bin/brew shellenv)
 fi
 
 run_swiftlint_for_modified_files () {
@@ -19,7 +25,7 @@ run_swiftlint_for_modified_files () {
     do
         # collect .swift files separately for Unit Tests and Code Files
         if [[ "${FILE_NAME##*.}" == "swift" ]]; then
-            # check if file exists (replacing  back #001 with space)
+            # check if file exists (replacing back #001 with space)
             if [ -f "`echo "${FILE_NAME}"  | tr '\001' ' '`" ]; then
                 if [[ "$FILE_NAME" == *"Tests/"* ]]; then
                     TEST_FILES+=" \"${FILE_NAME}\""
@@ -30,18 +36,28 @@ run_swiftlint_for_modified_files () {
         fi
     done
 
+    SWIFTLINT_COMMAND="swiftlint lint"
+    if $FIX; then
+        SWIFTLINT_COMMAND="swiftlint lint --fix"
+    fi
+
     if [ -n "${CODE_FILES}" ]; then
-        # replace  back #001 with space and feed to swiftlint
-        echo "${CODE_FILES}"  | tr '\001' ' ' | xargs swiftlint lint --force-exclude
+        # replace back #001 with space and feed to swiftlint
+        echo "${CODE_FILES}"  | tr '\001' ' ' | xargs $SWIFTLINT_COMMAND
     fi
     if [ -n "${TEST_FILES}" ]; then
-        echo "${TEST_FILES}" | tr '\001' ' ' | xargs swiftlint lint --force-exclude --config .swiftlint.tests.yml
+        echo "${TEST_FILES}" | tr '\001' ' ' | xargs $SWIFTLINT_COMMAND --config .swiftlint.tests.yml
     fi
 }
 
 if which swiftlint >/dev/null; then
     if [ "$CONFIGURATION" = "Release" ]; then
-        swiftlint lint --strict
+        if $FIX; then
+            swiftlint lint --fix --strict
+        else
+            swiftlint lint --strict
+        fi
+
         if [ $? -ne 0 ]; then
             echo "error: SwiftLint validation failed."
             exit 1
@@ -52,4 +68,4 @@ if which swiftlint >/dev/null; then
 else
     echo "error: SwiftLint not installed. Install using \`brew install swiftlint\`"
     exit 1
-fi
+fi

scripts/pre-commit.sh

@@ -0,0 +1,4 @@
+#!/bin/bash
+
+SCRIPT_URL="https://raw.githubusercontent.com/duckduckgo/BrowserServicesKit/main/scripts/pre-commit.sh"
+curl -s "${SCRIPT_URL}" | bash -s -- "$@"