59 lines
3.0 KiB
JavaScript
59 lines
3.0 KiB
JavaScript
// shared/qmd/qmd-config.mjs — edits only the models: block of QMD's index.yml.
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import { existsSync, readFileSync, writeFileSync, mkdirSync } from 'node:fs';
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import { dirname, join } from 'node:path';
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import { pathToFileURL } from 'node:url';
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import { MODELS, qmdConfigPath, qmdPackageDir } from './qmd-lib.mjs';
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export function setModels(text, YAML) {
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const document = YAML.parseDocument(text || '');
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if (document.errors.length) throw new Error(`index.yml cannot be parsed: ${document.errors[0].message}`);
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if (document.contents === null) document.contents = document.createNode({});
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document.set('models', document.createNode({ ...MODELS }));
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return document.toString();
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}
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export function previousModels(text, YAML) {
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const document = YAML.parseDocument(text || '');
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if (document.errors.length) throw new Error(`index.yml cannot be parsed: ${document.errors[0].message}`);
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return document.contents === null ? null : document.toJS().models ?? null;
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}
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export function restoreModels(text, YAML, mapping) {
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const document = YAML.parseDocument(text || '');
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if (document.errors.length) throw new Error(`index.yml cannot be parsed: ${document.errors[0].message}`);
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if (document.contents === null) document.contents = document.createNode({});
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document.set('models', document.createNode(mapping));
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return document.toString();
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}
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export function unsetModels(text, YAML) {
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const document = YAML.parseDocument(text || '');
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if (document.errors.length) throw new Error(`index.yml cannot be parsed: ${document.errors[0].message}`);
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if (document.contents !== null) document.delete('models');
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return document.contents === null || document.contents.items?.length === 0 ? '' : document.toString();
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}
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async function main(action, argument) {
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if (!['set-models', 'unset-models', 'restore-models'].includes(action)) throw new Error('usage: qmd-config.mjs set-models|unset-models|restore-models <json>');
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const YAML = await import(pathToFileURL(join(qmdPackageDir(), 'node_modules', 'yaml', 'dist', 'index.js')).href);
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const path = qmdConfigPath();
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const current = existsSync(path) ? readFileSync(path, 'utf8') : '';
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let next;
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if (action === 'set-models') {
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const previous = previousModels(current, YAML);
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// A block equal to ours is a leftover of an interrupted run, not the user's own.
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console.log(JSON.stringify({ previous: JSON.stringify(previous) === JSON.stringify(MODELS) ? null : previous }));
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next = setModels(current, YAML);
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} else if (action === 'restore-models') {
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const mapping = JSON.parse(argument ?? '');
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if (mapping === undefined) throw new Error('restore-models needs a JSON value');
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next = restoreModels(current, YAML, mapping);
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} else next = unsetModels(current, YAML);
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mkdirSync(dirname(path), { recursive: true });
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writeFileSync(path, next);
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}
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if (import.meta.url === pathToFileURL(process.argv[1] || '').href) {
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main(process.argv[2], process.argv[3]).catch((error) => { console.error(`qmd-config: ${error.message}`); process.exit(1); });
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}
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