Merge backfill scripts

Author: erikw

bin/aoc_lib.sh

@@ -87,7 +87,7 @@ aoc_create_readme() {
 	url_base="adventofcode.com/${year}/day/${day}"
 	url="https://${url_base}"
 
-	# NOTE remember to run readme_backfill.sh after changing the template below.
+	# NOTE remember to run backfill_days.sh after changing the template below.
 	read -rd '' content <<-MD || :
 	# Advent of Code - ${year} Day ${day}
 	Here are my solutions to this puzzle.
@@ -114,7 +114,7 @@ aoc_create_instructions_url() {
 
 	url="https://adventofcode.com/${year}/day/${day}"
 
-	# NOTE remember to run readme_backfill.sh after changing the template below.
+	# NOTE remember to run backfill_days.sh after changing the template below.
 	read -rd '' content <<-URL_FILE || :
 	[InternetShortcut]
 	URL = ${url}

bin/backfill_days.sh

@@ -0,0 +1,69 @@
+#!/usr/bin/env bash
+# Backfill boilerplate files for like README.md, instructions.url etc. for a given year and day.
+#Run this when changing the template in aoc_create_readme()
+
+set -o nounset
+set -o pipefail
+[[ "${TRACE-0}" =~ ^1|t|y|true|yes$ ]] && set -o xtrace
+
+SCRIPT_NAME=${0##*/}
+SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
+
+IFS= read -rd '' USAGE <<EOF || :
+Backfill boilerplate files like README.md, instructions.url etc for specific or all days. Run this after updating the README.md template.
+Usage: $ ${SCRIPT_NAME} -h |[ datefmt ]
+
+Options:
+datefmt\t\t yy/d, yy/dd, yyyy/dd. Default: backfill all days.
+EOF
+
+
+backfill_days_all() {
+	paths=$(find . -maxdepth 2 -type d -regex "\./*[0-9]+/[0-9]+" | sort | sed -e 's|./||')
+	for path in $paths; do
+		cd "$path" || exit
+		IFS="/" read -ra ym <<< "$path"
+		year=${ym[0]}
+		day=${ym[1]}
+
+		aoc_create_readme "$year" "$day"
+		aoc_create_instructions_url "$year" "$day"
+		printf "Backfilled %s\n" "$path"
+		cd ../..
+	done
+}
+
+
+backfill_day() {
+	local year="$1"
+	local day="$2"
+
+	aoc_create_enter "$year" "$day"
+	aoc_create_readme "$year" "$day"
+	aoc_create_instructions_url "$year" "$day"
+	printf "Backfilled %d/%s\n" "$year" "$day" # Print day as %s to preserve leading 0.
+}
+
+
+# shellcheck source=bin/aoc_lib.sh
+. "$SCRIPT_DIR/aoc_lib.sh"
+aoc_init_script
+
+
+# Arg parsing
+while getopts ":h?" opt; do
+	case "$opt" in
+		:) echo "Option -$OPTARG requires an argument." >&2; exit 1;;
+		h|?|*) echo -e "$USAGE"; exit 0;;
+	esac
+done
+shift $((OPTIND - 1))
+
+if [ "$#" -eq 1 ]; then
+	year=$(aoc_parse_year "$@") || exit
+	day=$(aoc_parse_day "$@") || exit
+
+	backfill_day "$year" "$day"
+else
+	backfill_days_all
+fi