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node_modules/globule/lib/globule.js

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+/*
+ * globule
+ * https://github.com/cowboy/node-globule
+ *
+ * Copyright (c) 2018 "Cowboy" Ben Alman
+ * Licensed under the MIT license.
+ */
+
+'use strict';
+
+var fs = require('fs');
+var path = require('path');
+
+var _ = require('lodash');
+var glob = require('glob');
+var minimatch = require('minimatch');
+
+// The module.
+var globule = exports;
+
+// Process specified wildcard glob patterns or filenames against a
+// callback, excluding and uniquing files in the result set.
+function processPatterns(patterns, options, fn) {
+  var result = [];
+  _.each(patterns, function(pattern) {
+    // The first character is not ! (inclusion). Add all matching filepaths
+    // to the result set.
+    if (pattern.indexOf('!') !== 0) {
+      result = _.union(result, fn(pattern));
+      return;
+    }
+    // The first character is ! (exclusion). Remove any filepaths from the
+    // result set that match this pattern, sans leading !.
+    var filterFn = minimatch.filter(pattern.slice(1), options);
+    result = _.filter(result, function(filepath) {
+      return !filterFn(filepath);
+    });
+  });
+  return result;
+}
+
+// Normalize paths to be unix-style.
+var pathSeparatorRe = /[\/\\]/g;
+function normalizePath(path) {
+  return path.replace(pathSeparatorRe, '/');
+}
+
+// Match a filepath or filepaths against one or more wildcard patterns. Returns
+// all matching filepaths. This behaves just like minimatch.match, but supports
+// any number of patterns.
+globule.match = function(patterns, filepaths, options) {
+  // Return empty set if either patterns or filepaths was omitted.
+  if (patterns == null || filepaths == null) { return []; }
+  // Normalize patterns and filepaths to flattened arrays.
+  patterns = _.isArray(patterns) ? _.flattenDeep(patterns) : [patterns];
+  filepaths = _.isArray(filepaths) ? _.flattenDeep(filepaths) : [filepaths];
+  // Return empty set if there are no patterns or filepaths.
+  if (patterns.length === 0 || filepaths.length === 0) { return []; }
+  // Return all matching filepaths.
+  return processPatterns(patterns, options, function(pattern) {
+    return minimatch.match(filepaths, pattern, options || {});
+  });
+};
+
+// Match a filepath or filepaths against one or more wildcard patterns. Returns
+// true if any of the patterns match.
+globule.isMatch = function() {
+  return globule.match.apply(null, arguments).length > 0;
+};
+
+// Return an array of all file paths that match the given wildcard patterns.
+globule.find = function() {
+  var args = _.toArray(arguments);
+  // If the last argument is an options object, remove it from args.
+  var options = _.isPlainObject(args[args.length - 1]) ? args.pop() : {};
+  // If options.src was specified, use it. Otherwise, use all non-options
+  // arguments. Flatten nested arrays.
+  var patterns;
+  if (options.src) {
+    patterns = _.isArray(options.src) ? _.flattenDeep(options.src) : [options.src];
+  } else {
+    patterns = _.flattenDeep(args);
+  }
+  // Return empty set if there are no patterns.
+  if (patterns.length === 0) { return []; }
+  var srcBase = options.srcBase || options.cwd;
+  // Create glob-specific options object.
+  var globOptions = _.extend({}, options);
+  if (srcBase) {
+    globOptions.cwd = srcBase;
+  }
+  // Get all matching filepaths.
+  var matches = processPatterns(patterns, options, function(pattern) {
+    return glob.sync(pattern, globOptions);
+  });
+  // If srcBase and prefixBase were specified, prefix srcBase to matched paths.
+  if (srcBase && options.prefixBase) {
+    matches = matches.map(function(filepath) {
+      return normalizePath(path.join(srcBase, filepath));
+    });
+  }
+  // Filter result set?
+  if (options.filter) {
+    matches = matches.filter(function(filepath) {
+      // If srcBase was specified but prefixBase was NOT, prefix srcBase
+      // temporarily, for filtering.
+      if (srcBase && !options.prefixBase) {
+        filepath = normalizePath(path.join(srcBase, filepath));
+      }
+      try {
+        if (_.isFunction(options.filter)) {
+          return options.filter(filepath, options);
+        } else {
+          // If the file is of the right type and exists, this should work.
+          return fs.statSync(filepath)[options.filter]();
+        }
+      } catch(err) {
+        // Otherwise, it's probably not the right type.
+        return false;
+      }
+    });
+  }
+  return matches;
+};
+
+var extDotRe = {
+  first: /(\.[^\/]*)?$/,
+  last: /(\.[^\/\.]*)?$/,
+};
+function rename(dest, options) {
+  // Flatten path?
+  if (options.flatten) {
+    dest = path.basename(dest);
+  }
+  // Change the extension?
+  if (options.ext) {
+    dest = dest.replace(extDotRe[options.extDot], options.ext);
+  }
+  // Join dest and destBase?
+  if (options.destBase) {
+    dest = path.join(options.destBase, dest);
+  }
+  return dest;
+}
+
+// Build a mapping of src-dest filepaths from the given set of filepaths.
+globule.mapping = function(filepaths, options) {
+  // Return empty set if filepaths was omitted.
+  if (filepaths == null) { return []; }
+  options = _.defaults({}, options, {
+    extDot: 'first',
+    rename: rename,
+  });
+  var files = [];
+  var fileByDest = {};
+  // Find all files matching pattern, using passed-in options.
+  filepaths.forEach(function(src) {
+    // Generate destination filename.
+    var dest = options.rename(src, options);
+    // Prepend srcBase to all src paths.
+    if (options.srcBase) {
+      src = path.join(options.srcBase, src);
+    }
+    // Normalize filepaths to be unix-style.
+    dest = normalizePath(dest);
+    src = normalizePath(src);
+    // Map correct src path to dest path.
+    if (fileByDest[dest]) {
+      // If dest already exists, push this src onto that dest's src array.
+      fileByDest[dest].src.push(src);
+    } else {
+      // Otherwise create a new src-dest file mapping object.
+      files.push({
+        src: [src],
+        dest: dest,
+      });
+      // And store a reference for later use.
+      fileByDest[dest] = files[files.length - 1];
+    }
+  });
+  return files;
+};
+
+// Return a mapping of src-dest filepaths from files matching the given
+// wildcard patterns.
+globule.findMapping = function() {
+  var args = _.toArray(arguments);
+  // If the last argument is an options object, remove it from args.
+  var options = _.isPlainObject(args[args.length - 1]) ? args.pop() : {};
+  // Generate mapping from found filepaths.
+  return globule.mapping(globule.find(args, options), options);
+};