95 lines
2.3 KiB
JavaScript
95 lines
2.3 KiB
JavaScript
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'use strict';
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var Combine = require('ordered-read-streams');
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var unique = require('unique-stream');
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var pumpify = require('pumpify');
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var isNegatedGlob = require('is-negated-glob');
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var extend = require('extend');
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var GlobStream = require('./readable');
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function globStream(globs, opt) {
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if (!opt) {
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opt = {};
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}
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var ourOpt = extend({}, opt);
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var ignore = ourOpt.ignore;
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ourOpt.cwd = typeof ourOpt.cwd === 'string' ? ourOpt.cwd : process.cwd();
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ourOpt.dot = typeof ourOpt.dot === 'boolean' ? ourOpt.dot : false;
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ourOpt.silent = typeof ourOpt.silent === 'boolean' ? ourOpt.silent : true;
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ourOpt.cwdbase = typeof ourOpt.cwdbase === 'boolean' ? ourOpt.cwdbase : false;
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ourOpt.uniqueBy = typeof ourOpt.uniqueBy === 'string' ||
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typeof ourOpt.uniqueBy === 'function' ? ourOpt.uniqueBy : 'path';
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if (ourOpt.cwdbase) {
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ourOpt.base = ourOpt.cwd;
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}
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// Normalize string `ignore` to array
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if (typeof ignore === 'string') {
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ignore = [ignore];
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}
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// Ensure `ignore` is an array
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if (!Array.isArray(ignore)) {
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ignore = [];
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}
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// Only one glob no need to aggregate
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if (!Array.isArray(globs)) {
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globs = [globs];
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}
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var positives = [];
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var negatives = [];
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globs.forEach(sortGlobs);
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function sortGlobs(globString, index) {
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if (typeof globString !== 'string') {
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throw new Error('Invalid glob at index ' + index);
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}
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var glob = isNegatedGlob(globString);
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var globArray = glob.negated ? negatives : positives;
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globArray.push({
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index: index,
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glob: glob.pattern,
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});
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}
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if (positives.length === 0) {
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throw new Error('Missing positive glob');
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}
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// Create all individual streams
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var streams = positives.map(streamFromPositive);
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// Then just pipe them to a single unique stream and return it
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var aggregate = new Combine(streams);
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var uniqueStream = unique(ourOpt.uniqueBy);
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return pumpify.obj(aggregate, uniqueStream);
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function streamFromPositive(positive) {
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var negativeGlobs = negatives
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.filter(indexGreaterThan(positive.index))
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.map(toGlob)
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.concat(ignore);
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return new GlobStream(positive.glob, negativeGlobs, ourOpt);
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}
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}
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function indexGreaterThan(index) {
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return function(obj) {
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return obj.index > index;
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};
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}
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function toGlob(obj) {
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return obj.glob;
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}
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module.exports = globStream;
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