f516e2acda
Reads the DSL file, parses to AST, loads all --atlas-dir paths into a registry, runs the builder, and writes pretty-printed JSON. The output filename's basename becomes the map id when the DSL has no 'id' directive. Parser and builder errors are surfaced as '<file>:<line>: <message>'. Also reorders the duplicate-atlas warning so the atlas_id appears before the word 'duplicate'.
95 lines
2.1 KiB
JavaScript
95 lines
2.1 KiB
JavaScript
'use strict';
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const fs = require('node:fs');
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const path = require('node:path');
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const { parseDsl } = require('../dsl-parser');
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const { loadAtlasDirs } = require('../atlas-loader');
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const { buildMap } = require('../builder');
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const USAGE = 'usage: sporel-mapper build <spec.txt> <out.json> [--atlas-dir <path> ...]\n';
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function parseArgs(args) {
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const positional = [];
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const atlasDirs = [];
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let i = 0;
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while (i < args.length) {
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const a = args[i];
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if (a === '--atlas-dir') {
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if (i + 1 >= args.length) {
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throw new Error(`--atlas-dir requires a path`);
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}
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atlasDirs.push(args[i + 1]);
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i += 2;
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} else {
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positional.push(a);
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i += 1;
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}
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}
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return { positional, atlasDirs };
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}
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function run(args, { out, err }) {
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let parsed;
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try {
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parsed = parseArgs(args);
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} catch (e) {
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err.write(`error: ${e.message}\n${USAGE}`);
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return 1;
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}
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if (parsed.positional.length !== 2) {
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err.write(USAGE);
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return 1;
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}
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const [specPath, outPath] = parsed.positional;
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let dslText;
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try {
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dslText = fs.readFileSync(specPath, 'utf8');
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} catch (e) {
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err.write(`error: cannot read ${specPath}: ${e.message}\n`);
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return 1;
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}
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let ast;
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try {
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ast = parseDsl(dslText);
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} catch (e) {
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const line = e.line || '?';
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err.write(`${specPath}:${line}: ${e.message}\n`);
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return 1;
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}
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let registry;
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try {
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const result = loadAtlasDirs(parsed.atlasDirs);
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registry = result.registry;
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for (const w of result.warnings) {
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err.write(`warning: ${w}\n`);
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}
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} catch (e) {
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err.write(`error: ${e.message}\n`);
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return 1;
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}
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const defaultId = path.basename(outPath, path.extname(outPath));
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let map;
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try {
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map = buildMap(ast, registry, { defaultId });
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} catch (e) {
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const line = e.line || '?';
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err.write(`${specPath}:${line}: ${e.message}\n`);
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return 1;
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}
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try {
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fs.writeFileSync(outPath, JSON.stringify(map, null, 2) + '\n');
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} catch (e) {
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err.write(`error: cannot write ${outPath}: ${e.message}\n`);
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return 1;
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}
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return 0;
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}
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module.exports = { run };
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