36 lines
1.6 KiB
JavaScript
36 lines
1.6 KiB
JavaScript
/**
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* 生成全国县级行政区划快照：node scripts/gen-china-districts.js
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* 数据源：devDependency @province-city-china/data（GB/T 2260，省市区四级全量）
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* 输出：src/enumerate/chinaDistricts.json，仅保留县级约 3300 条（[code, 名称, 省+市]，160KB 左右）
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* 行政区划调整后重新执行本脚本即可刷新快照
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*/
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const fs = require("fs");
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const path = require("path");
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const all = require("@province-city-china/data");
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/** 省级名称表：code 形如 XX0000 */
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const provinceNameByCode = {};
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/** 地级名称表：code 形如 XXYY00 */
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const cityNameByCode = {};
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all.forEach((item) => {
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const isProvince = item.city === 0 && item.area === 0 && item.town === 0;
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const isCity = item.city !== 0 && item.area === 0 && item.town === 0;
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if (isProvince) provinceNameByCode[item.province] = item.name;
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if (isCity) cityNameByCode[item.province + item.city] = item.name;
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});
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const districts = all
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.filter((item) => item.city !== 0 && item.area !== 0 && item.town === 0)
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.map((item) => {
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const province = provinceNameByCode[item.province] || "";
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const city = cityNameByCode[item.province + item.city] || "";
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// 直辖市等省市同名时不重复拼接
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const region = city && city !== province ? `${province}${city}` : province;
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return [item.code, item.name, region];
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});
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const outFile = path.join(__dirname, "../src/enumerate/chinaDistricts.json");
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fs.writeFileSync(outFile, `${JSON.stringify(districts)}\n`, "utf8");
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console.log(`已生成 ${path.relative(process.cwd(), outFile)}：${districts.length} 条`);
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