Merge pull request #87 from yuiseki/feat/optimize-report-before-after

feat: add optimize before/after report

Author: yuiseki

CHANGELOG.md

@@ -9,10 +9,10 @@ The format is based on Keep a Changelog and adheres to Semantic Versioning.
 ## [Unreleased]
 
 ### Added
-- TBD_UNVT_CHANGELOG_ADDED
+- Add before/after metrics to optimize reports (tile size, file size, features, vertices).
 
 ### Changed
-- TBD_UNVT_CHANGELOG_CHANGED
+- Add colored headings/labels and before/after deltas to optimize text summary.
 
 ### Fixed
 - TBD_UNVT_CHANGELOG_FIXED

Makefile

@@ -93,6 +93,7 @@ optimize-mbtiles: ## Optimize MBTiles file (requires MBTILES_PATH in .env)
 		echo "Error: STYLE_PATH is not set. Please set it in .env file"; \
 		exit 1; \
 	fi
+	rm -rf $(OUTPUT_MBTILES_PATH)
 	cargo run -- optimize $(MBTILES_PATH) --style $(STYLE_PATH) --output $(OUTPUT_MBTILES_PATH)
 
 optimize-mbtiles-json: ## Optimize MBTiles file and output JSON report (requires MBTILES_PATH in .env)
@@ -108,6 +109,7 @@ optimize-mbtiles-json: ## Optimize MBTiles file and output JSON report (requires
 		echo "Error: STYLE_PATH is not set. Please set it in .env file"; \
 		exit 1; \
 	fi
+	rm -rf $(OUTPUT_MBTILES_PATH)
 	cargo run -- optimize $(MBTILES_PATH) --style $(STYLE_PATH) --output $(OUTPUT_MBTILES_PATH) --report-format json
 
 inspect-pmtiles: ## Inspect PMTiles file (requires PMTILES_PATH in .env)

docs/SPEC.md

@@ -184,6 +184,8 @@ vt-optimizer -m <mbtiles> [-s <style.json>] [-o <output>] [-z <z> -x <x> -y <y>
 主要仕様：
 
 * `--report-format <text|json|ndjson>`: optimize のレポート出力形式（stdout）
+  * json/ndjson では input/output の tile_count / total_tile_size_bytes / file_size_bytes /
+    total_features / total_vertices と、最適化の差分サマリーを出力する
 * レイヤー削除
 
   * style で参照されない `source-layer` は削除対象