Proto-to-Prod

bin/build-images

@@ -0,0 +1,76 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+REPO_ROOT="$(cd "$(dirname "$0")/.." && pwd)"
+MANIFEST="${MANIFEST:-$REPO_ROOT/content/audio.yaml}"
+SRC_DIR="${SRC_DIR:-$REPO_ROOT/content/images}"
+OUT_DIR="${OUT_DIR:-$REPO_ROOT/web/static/images}"
+MAX_SIZE="${MAX_SIZE:-1200}"
+QUALITY="${QUALITY:-80}"
+
+for tool in yq magick; do
+	if ! command -v "$tool" >/dev/null; then
+		echo "error: $tool not in PATH (try: nix develop)" >&2
+		exit 1
+	fi
+done
+
+mkdir -p "$OUT_DIR"
+
+encoded=0
+skipped=0
+missing=0
+failed=0
+
+NUM_ARTISTS=$(yq '.artists | length' "$MANIFEST")
+
+for ((a=0; a<NUM_ARTISTS; a++)); do
+	ARTIST_SLUG=$(yq -r ".artists[$a].slug" "$MANIFEST")
+	NUM_IMAGES=$(yq ".artists[$a].images | length // 0" "$MANIFEST")
+
+	for ((i=0; i<NUM_IMAGES; i++)); do
+		SRC_NAME=$(yq -r ".artists[$a].images[$i]" "$MANIFEST")
+		SRC_PATH="$SRC_DIR/$SRC_NAME"
+		OUT_NAME="${ARTIST_SLUG}-$((i + 1)).webp"
+		OUT_PATH="$OUT_DIR/$OUT_NAME"
+
+		if [[ ! -f "$SRC_PATH" ]]; then
+			printf '  %-45s SKIP (source not found)\n' "$OUT_NAME"
+			missing=$((missing + 1))
+			continue
+		fi
+
+		if [[ -f "$OUT_PATH" ]]; then
+			src_mt=$(stat -c %Y "$SRC_PATH")
+			out_mt=$(stat -c %Y "$OUT_PATH")
+			if (( out_mt > src_mt )); then
+				printf '  %-45s up to date\n' "$OUT_NAME"
+				skipped=$((skipped + 1))
+				continue
+			fi
+		fi
+
+		printf '  %-45s converting ...\n' "$OUT_NAME"
+
+		if magick "$SRC_PATH" \
+			-auto-orient \
+			-strip \
+			-resize "${MAX_SIZE}x${MAX_SIZE}>" \
+			-quality "$QUALITY" \
+			"$OUT_PATH"; then
+			size=$(du -h "$OUT_PATH" | cut -f1)
+			printf '  %-45s done (%s)\n' "$OUT_NAME" "$size"
+			encoded=$((encoded + 1))
+		else
+			printf '  %-45s FAILED\n' "$OUT_NAME" >&2
+			failed=$((failed + 1))
+		fi
+	done
+done
+
+printf '\n%d converted · %d up-to-date · %d missing sources · %d failed\n' \
+	"$encoded" "$skipped" "$missing" "$failed"
+
+if (( failed > 0 )); then
+	exit 1
+fi