newpost

#!/usr/bin/env bash
#
# Create a new blog post bundle dated today.
#
#   ./newpost <slug> ["Optional Title"]
#
# Examples:
#   ./newpost summer_update
#   ./newpost summer_update "A Big Summer Update"
#
# Produces content/posts/<year>/<mm-dd-slug>/index.md (via the posts archetype),
# published at /<year>/<mm>/<dd>/<slug>.html. Opens it in $EDITOR if one is set.

set -euo pipefail

if [ $# -lt 1 ]; then
  echo "Usage: $0 <slug> [\"Optional Title\"]" >&2
  exit 1
fi

slug="$1"
cd "$(dirname "$0")"

y=$(date +%Y)
md=$(date +%m-%d)
path="content/posts/$y/$md-$slug/index.md"

if [ -e "$path" ]; then
  echo "Already exists: $path" >&2
  exit 1
fi

hugo new "$path" >/dev/null

# Optional title override (the archetype otherwise title-cases the slug).
if [ $# -ge 2 ]; then
  TITLE="$2" python3 - "$path" <<'PY'
import os, re, sys
p = sys.argv[1]
t = open(p, encoding="utf-8").read()
title = os.environ["TITLE"].replace('\\', '\\\\').replace('"', '\\"')
t = re.sub(r'^title:.*$', f'title: "{title}"', t, count=1, flags=re.M)
open(p, "w", encoding="utf-8").write(t)
PY
fi

echo "Created $path"
if [ -n "${EDITOR:-}" ]; then
  "$EDITOR" "$path"
fi