Generate default swift initializer from properties

swift-default-init.sh

#!/bin/bash

# Usage:
# 1. Copy your properties to clipboard
# 2. `pbpaste | swift-default-init.sh | pbcopy`
# 3. Paste into code

set -eu -o pipefail

# Switch to \t for tab indenting
INDENT="    "

fields=$(grep -oE '^\s*(let|var)\s+\w+:\s+[][A-Za-z0-9_<>?!:, ]+' <&0 | sed -E 's/^[[:space:]]*(let|var)[[:space:]]+//; s/[[:space:]]*$//')

# Write init(...) {
echo -n "$INDENT"
echo -n "init("
echo -n "$(echo "$fields" | head -n1)"
echo "$fields" | tail -n+2 | while read line; do
	echo -n ", $line"
done
echo ") {"

echo "$fields" | while read line; do
	field_name=$(echo $line | grep -oE '^\w+' | tr -d '\n')
	echo "$INDENT${INDENT}self.$field_name = $field_name"
done

# Write }
echo "$INDENT}"