70 lines
1.6 KiB
JavaScript
70 lines
1.6 KiB
JavaScript
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'use strict';
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var assign = require('object-assign');
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var path = require('path');
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var mkdirp = require('mkdirp');
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var fs = require('graceful-fs');
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function booleanOrFunc(v, file) {
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if (typeof v !== 'boolean' && typeof v !== 'function') {
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return null;
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}
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return typeof v === 'boolean' ? v : v(file);
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}
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function stringOrFunc(v, file) {
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if (typeof v !== 'string' && typeof v !== 'function') {
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return null;
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}
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return typeof v === 'string' ? v : v(file);
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}
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function prepareWrite(outFolder, file, opt, cb) {
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var options = assign({
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cwd: process.cwd(),
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mode: (file.stat ? file.stat.mode : null),
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dirMode: null,
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overwrite: true,
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}, opt);
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var overwrite = booleanOrFunc(options.overwrite, file);
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options.flag = (overwrite ? 'w' : 'wx');
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var cwd = path.resolve(options.cwd);
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var outFolderPath = stringOrFunc(outFolder, file);
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if (!outFolderPath) {
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throw new Error('Invalid output folder');
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}
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var basePath = options.base ?
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stringOrFunc(options.base, file) : path.resolve(cwd, outFolderPath);
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if (!basePath) {
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throw new Error('Invalid base option');
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}
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var writePath = path.resolve(basePath, file.relative);
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var writeFolder = path.dirname(writePath);
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// Wire up new properties
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file.stat = (file.stat || new fs.Stats());
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file.stat.mode = options.mode;
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file.flag = options.flag;
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file.cwd = cwd;
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file.base = basePath;
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file.path = writePath;
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// Mkdirp the folder the file is going in
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var mkdirpOpts = {
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mode: options.dirMode,
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fs: fs,
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};
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mkdirp(writeFolder, mkdirpOpts, function(err) {
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if (err) {
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return cb(err);
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}
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cb(null, writePath);
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});
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}
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module.exports = prepareWrite;
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