ihp-new: Create git repo to avoid issues when IHP is part of a larger…

… git repo

Fixes #1787

ProjectGenerator/bin/ihp-new

@@ -235,6 +235,15 @@ cd "$PROJECT_NAME"
 rm -rf ".git"
 chmod go-w .ghci || true
 
+# Init git repo
+# When the IHP project is created inside a larger git repo, nix will not pick up file changes until they've been `git add`ed. We create our own git repo here to avoid any issues related to that.
+# See https://github.com/digitallyinduced/ihp/issues/1787
+git init
+git add .
+
+# Disable nix warning like `warning: Git tree '...' is dirty`
+export NIX_CONFIG="warn-dirty = false"
+
 # Generating Web/ directory
 nix --extra-experimental-features "nix-command flakes" develop --impure --accept-flake-config --command bash -c "make -s all; new-application Web"
 
@@ -250,6 +259,9 @@ elif [[ "$BOILERPLATE_GIT_BRANCH" == "purescript-halogen" ]]; then
 	rm Layout.hs.patch Welcome.hs.patch
 fi
 
+# Add remaining changes
+git add .
+
 echo ""
 echo "🚀 Project created, happy coding :)"
 echo "You can start the server by running:"