✨ Add hook for prettier

pre-commit.d/prettier.sh

@@ -0,0 +1,39 @@
+#!/bin/bash
+
+# Run prettier on the files in the diff.
+#
+# Tests if prettier exists
+
+formatter=${PRETTIER_BIN:-./node_modules/.bin/prettier}
+
+if [ ! -f "$formatter" ]; then
+    exit 0
+fi
+
+STAGED_FILES=$(git diff --cached --name-only --diff-filter=ACM -- '*.js' | sed 's| |\\ |g')
+
+CHANGED_UNSTAGED_FILES=$(git diff --name-only)
+
+if [ ! -z "$STAGED_FILES" ]; then
+    if [ ! -z "$CHANGED_UNSTAGED_FILES" ]; then
+        # if there's changed stuff that isn't staged, we dont want to format the unstaged stuff too
+        git stash --keep-index
+    fi
+
+    # Format all selected files
+    echo "$STAGED_FILES" | xargs "$formatter" --write
+
+    # Check for the exit code
+    if [ $? -ne 0 ]; then
+        exit 1
+    fi
+
+    # Add back the modified/prettified files to staging
+    echo "$STAGED_FILES" | xargs git add -u
+
+
+    if [ ! -z "$CHANGED_UNSTAGED_FILES" ]; then
+        # put everything back in its place, hopefully without any merge conflicts...
+        git stash pop
+    fi
+fi