84 lines
2.2 KiB
JavaScript
84 lines
2.2 KiB
JavaScript
const StreamZip = require('node-stream-zip');
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const fs = require('fs-extra');
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const path = require('path');
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// Filenames we need to extract from the archive
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const gerberFiles = [
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'CAMOutputs/DrillFiles/drills.xln',
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'CAMOutputs/GerberFiles/copper_top.gbr',
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'CAMOutputs/GerberFiles/silkscreen_top.gbr',
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'CAMOutputs/GerberFiles/soldermask_top.gbr',
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'CAMOutputs/GerberFiles/solderpaste_top.gbr',
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'CAMOutputs/GerberFiles/profile.gbr'
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]
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/**
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* Extracts the passed in zip file
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* @param {string} fileName
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* @returns {Promise} Promise object represents number of files extracted
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*/
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async function extractArchive(fileName) {
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// Configure archive to use
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const archive = new StreamZip({
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file: fileName,
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storeEntries: true
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});
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return new Promise((resolve, reject) => {
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// Try to extract
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archive.on('ready', () => {
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let extDir = path.join(__dirname, 'gerber', 'tmp', 'archive');
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fs.mkdirSync(extDir, { recursive: true });
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archive.extract(null, extDir, (err, count) => {
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if(!err) {
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archive.close();
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resolve(count);
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} else {
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const errMsg = 'Error extracting archive';
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console.err(errMsg);
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archive.close();
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reject(errMsg)
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}
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})
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})
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})
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}
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async function getLayers(fileName) {
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return new Promise((resolve, reject) => {
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const tempDir = path.join(__dirname, 'gerber', 'tmp', 'archive');
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extractArchive(fileName)
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.then(numfiles => {
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console.log(`${numfiles} files extracted successfully`);
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const layers = gerberFiles.map(fileName => ({
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filename: fileName,
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gerber: fs.createReadStream(path.join(tempDir, fileName))
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}));
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if(numfiles > 0) {
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// Some files were extracted
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resolve(layers);
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} else {
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const errMsg = 'No files were extracted';
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reject(errMsg);
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}
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})
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.catch(e => {
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console.log(e);
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})
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})
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}
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function cleanupFiles() {
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try {
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let folder = path.join(__dirname, 'gerber', 'tmp');
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fs.emptyDirSync(folder);
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console.log('Temp files removed.');
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} catch (err) {
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console.error(err);
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}
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}
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module.exports = {
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extractArchive,
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getLayers,
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cleanupFiles
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} |