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symlinks.js (2374B)

      1 'use strict';
      2 
      3 const path = require('path');
      4 const fs = require('fs-extra');
      5 const globby = require('globby');
      6 
      7 const { isWindows, formatDirsForMatcher, getSignatures, writeSignatures, cleanUp, onSuccess, onError, onProgress } = require('./utils');
      8 const { dirs, symlinkDirs, copyDirs, symlinkFiles, ignoreMask } = require('./config');
      9 const ROOT = path.resolve(__dirname, '..');
     10 
     11 
     12 //@TODO: change signature to getSymlinks(source, options, signatures)
     13 //		 here and elsewhere
     14 //		 
     15 //		 run symlinks twice, once for files (with nodir: true)
     16 //		 once for dirs
     17 async function getSymlinks(source, options, signatures) {
     18 	const t1 = Date.now();
     19 	const files = await globby(source, Object.assign({ cwd: ROOT }, options ));
     20 	const filesDonePreviously = [];
     21 	for (const [f, signature] of Object.entries(signatures)) {
     22 		if ('isSymlinked' in signature && signature.isSymlinked) {
     23 			try {
     24 				await fs.access(path.join('build', f), fs.constants.F_OK);
     25 				// file found in signatures and build/ dir, skip
     26 				filesDonePreviously.push(f);
     27 			} catch (_) {
     28 				// file not found, needs symlinking
     29 			}
     30 		}
     31 	}
     32 
     33 	const filesToProcess = files.filter(f => !filesDonePreviously.includes(f));
     34 	const filesProcessedCount = filesToProcess.length;
     35 
     36 	var f;
     37 	while ((f = filesToProcess.pop()) != null) {
     38 		const dest = path.join('build', f);
     39 		try {
     40 			if (isWindows) {
     41 				await fs.copy(f, dest);
     42 			} else {
     43 				await fs.ensureSymlink(f, dest);
     44 			}
     45 			signatures[f] = {
     46 				isSymlinked: true
     47 			};
     48 			onProgress(f, dest, 'ln');
     49 		} catch (err) {
     50 			throw new Error(`Failed on ${f}: ${err}`);
     51 		}
     52 	}
     53 
     54 	const t2 = Date.now();
     55 
     56 	return {
     57 		action: 'symlink',
     58 		count: filesProcessedCount,
     59 		totalCount: files.length,
     60 		processingTime: t2 - t1
     61 	};
     62 }
     63 
     64 
     65 module.exports = getSymlinks;
     66 
     67 if (require.main === module) {
     68 	(async () => {
     69 		try {
     70 			const source = symlinkFiles
     71 				.concat(dirs.map(d => `${d}/**`))
     72 				.concat([`!${formatDirsForMatcher(dirs)}/**/*.js`])
     73 				.concat([`!${formatDirsForMatcher(copyDirs)}/**`]);
     74 
     75 			const signatures = await getSignatures();
     76 			onSuccess(await getSymlinks(source, { nodir: true, ignore: ignoreMask }, signatures));
     77 			onSuccess(await getSymlinks(symlinkDirs, {}, signatures));
     78 			onSuccess(await cleanUp(signatures));
     79 			await writeSignatures(signatures);
     80 		} catch (err) {
     81 			process.exitCode = 1;
     82 			global.isError = true;
     83 			onError(err);
     84 		}
     85 	})();
     86 }