fix: eslint pre-commit hook now supports partially staged files

.husky/eslint.sh

@@ -1,8 +1,10 @@
 #!/bin/bash
 
 GREEN='\033[0;32m'
+RED='\033[31m'
 NC='\033[0m' # No Color
 
+
 if [ "$TREZOR_PRE_COMMIT_ESLINT_SKIP" == "true" ]; then
   echo "Skipping eslint pre-commit hook, do: 'export TREZOR_PRE_COMMIT_ESLINT_SKIP=false' to re-enable it."
   exit 0
@@ -24,14 +26,48 @@ else
   echo "$STAGED_FILES"
   echo ""
 
+  # This will stashed all changes that are not added (the red files), but keeps added (the green files)
+  echo -e "Stashing the ${GREEN}staged${NC} files."
+  git stash push --staged -q   # Stash staged changes (green files)
+  git status
+
+  UNSTAGED_FILES=$(git diff --name-only)
+
+  if [ -z "$UNSTAGED_FILES" ]; then
+    echo -e "There are no ${RED}unstaged${NC} files to stash."
+    git stash pop -q # In case no unstaged files are present, we can pop the stash
+    git add . # And we need to stage them as well (from stash pop they became unstaged)
+
+    git status
+
+  else
+    echo -e "Stashing the ${RED}unstaged${NC} files."
+    git stash -q # If there are some unstaged (red) files, we need to stash them into second stash
+    git status
+
+    echo -e "Restoring the ${GREEN}staged${NC} files."
+    git stash pop stash@\{1\} -q   # And then restore the first stash with the staged (green), files
+    git add . # And we need to stage them as well (from stash pop they became unstaged)
+    git status
+  fi
+
+  echo -e "Running lint..."
+
   # No quotes to pass as separate arguments (files)
   # shellcheck disable=SC2086
   if ! yarn lint:js:fix-files $STAGED_FILES; then
     echo "Eslint failed! Please fix the errors and try again. You can also use --no-verify to skip pre-commit checks."
+
+    if [ -n "$UNSTAGED_FILES" ]; then
+      git stash pop -q # Restore the stash of the unstaged files if there were any
+    fi
     exit 1
   fi
 
-  git update-index --again
-fi
+  git update-index --again # Stage all changes (made by ESlint)
 
+  if [ -n "$UNSTAGED_FILES" ]; then
+    git stash pop -q # Restore the stash of the unstaged files if there were any
+  fi
+fi