44 lines
1.2 KiB
JavaScript
44 lines
1.2 KiB
JavaScript
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const visitChildren = require('unist-util-visit-children');
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const { root } = require('mdast-builder');
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const { getFileVisitor } = require('./utils/get-file-visitor');
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const { splitOnThematicBreak } = require('./utils/split-on-thematic-break');
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const getAllBetween = require('./utils/between-headings');
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const { editableRegionMarker } = require('./add-seed');
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function validateMarkers({ value }) {
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const lines = value.split('\n');
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if (lines.some(line => line.match(RegExp(editableRegionMarker))))
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throw Error(
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'--fcc-editable-region-- should only appear in the --seed-contents--\n' +
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'section, not in --solutions--'
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);
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}
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function createPlugin() {
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return function transformer(tree, file) {
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const solutionArrays = splitOnThematicBreak(
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getAllBetween(tree, `--solutions--`)
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);
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const solutions = [];
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solutionArrays.forEach(nodes => {
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const solution = {};
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const solutionTree = root(nodes);
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const visitForContents = visitChildren(
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getFileVisitor(solution, 'contents', validateMarkers)
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);
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visitForContents(solutionTree);
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solutions.push(solution);
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});
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file.data = {
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...file.data,
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solutions: solutions
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};
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};
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}
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module.exports = createPlugin;
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