chore: parallel makefile attempt 3 (#3926)

* Revert "chore: Revert parallel Makefile builds (#3918)"

This reverts commit b077f71015.

* fix: fix release workflow with parallel makefile

* fix: mark generated files as fresh during releases

scripts/yarn_install.sh

@@ -5,39 +5,37 @@
 #
 # Usage: yarn_install.sh [optional extra flags]
 
-set -eo pipefail
+set -euo pipefail
+# shellcheck source=scripts/lib.sh
+source "$(dirname "${BASH_SOURCE[0]}")/lib.sh"
 
-SCRIPT_DIR=$(dirname "${BASH_SOURCE[0]}")
-PROJECT_ROOT=$(cd "$SCRIPT_DIR" && git rev-parse --show-toplevel)
+cdroot
+cd site
 
-(
-	cd "$PROJECT_ROOT/site"
+yarn_flags=(
+	# Do not execute install scripts
+	# TODO: check if build works properly with this enabled
+	# --ignore-scripts
 
-	yarn_flags=(
-		# Do not execute install scripts
-		# TODO: check if build works properly with this enabled
-		# --ignore-scripts
-
-		# Check if existing node_modules are valid
-		# TODO: determine if this is necessary
-		# --check-files
-	)
-
-	if [[ -n ${CI:-} ]]; then
-		yarn_flags+=(
-			# Install dependencies from lockfile, ensuring builds are fully
-			# reproducible
-			--frozen-lockfile
-			# Suppress progress information
-			--silent
-			# Disable interactive prompts for build
-			--non-interactive
-		)
-	fi
-
-	# Append whatever is specified on the command line
-	yarn_flags+=("$@")
-
-	echo "+ yarn install ${yarn_flags[*]}"
-	yarn install "${yarn_flags[@]}"
+	# Check if existing node_modules are valid
+	# TODO: determine if this is necessary
+	# --check-files
 )
+
+if [[ -n ${CI:-} ]]; then
+	yarn_flags+=(
+		# Install dependencies from lockfile, ensuring builds are fully
+		# reproducible
+		--frozen-lockfile
+		# Suppress progress information
+		--silent
+		# Disable interactive prompts for build
+		--non-interactive
+	)
+fi
+
+# Append whatever is specified on the command line
+yarn_flags+=("$@")
+
+echo "+ yarn install ${yarn_flags[*]}"
+yarn install "${yarn_flags[@]}"