1 | /**
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2 | * @fileoverview Utilities for working with globs and the filesystem.
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3 | * @author Ian VanSchooten
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4 | */
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5 | ;
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6 |
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7 | //------------------------------------------------------------------------------
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8 | // Requirements
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9 | //------------------------------------------------------------------------------
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10 |
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11 | const lodash = require("lodash"),
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12 | fs = require("fs"),
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13 | path = require("path"),
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14 | GlobSync = require("./glob"),
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15 |
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16 | pathUtil = require("./path-util"),
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17 | IgnoredPaths = require("../ignored-paths");
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18 |
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19 | const debug = require("debug")("eslint:glob-util");
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20 |
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21 | //------------------------------------------------------------------------------
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22 | // Helpers
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23 | //------------------------------------------------------------------------------
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24 |
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25 | /**
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26 | * Checks if a provided path is a directory and returns a glob string matching
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27 | * all files under that directory if so, the path itself otherwise.
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28 | *
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29 | * Reason for this is that `glob` needs `/**` to collect all the files under a
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30 | * directory where as our previous implementation without `glob` simply walked
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31 | * a directory that is passed. So this is to maintain backwards compatibility.
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32 | *
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33 | * Also makes sure all path separators are POSIX style for `glob` compatibility.
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34 | *
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35 | * @param {Object} [options] An options object
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36 | * @param {string[]} [options.extensions=[".js"]] An array of accepted extensions
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37 | * @param {string} [options.cwd=process.cwd()] The cwd to use to resolve relative pathnames
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38 | * @returns {Function} A function that takes a pathname and returns a glob that
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39 | * matches all files with the provided extensions if
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40 | * pathname is a directory.
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41 | */
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42 | function processPath(options) {
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43 | const cwd = (options && options.cwd) || process.cwd();
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44 | let extensions = (options && options.extensions) || [".js"];
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45 |
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46 | extensions = extensions.map(ext => ext.replace(/^\./, ""));
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47 |
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48 | let suffix = "/**";
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49 |
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50 | if (extensions.length === 1) {
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51 | suffix += `/*.${extensions[0]}`;
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52 | } else {
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53 | suffix += `/*.{${extensions.join(",")}}`;
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54 | }
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55 |
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56 | /**
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57 | * A function that converts a directory name to a glob pattern
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58 | *
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59 | * @param {string} pathname The directory path to be modified
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60 | * @returns {string} The glob path or the file path itself
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61 | * @private
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62 | */
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63 | return function(pathname) {
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64 | let newPath = pathname;
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65 | const resolvedPath = path.resolve(cwd, pathname);
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66 |
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67 | if (fs.existsSync(resolvedPath) && fs.statSync(resolvedPath).isDirectory()) {
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68 | newPath = pathname.replace(/[/\\]$/, "") + suffix;
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69 | }
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70 |
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71 | return pathUtil.convertPathToPosix(newPath);
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72 | };
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73 | }
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74 |
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75 | //------------------------------------------------------------------------------
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76 | // Public Interface
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77 | //------------------------------------------------------------------------------
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78 |
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79 | /**
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80 | * Resolves any directory patterns into glob-based patterns for easier handling.
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81 | * @param {string[]} patterns File patterns (such as passed on the command line).
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82 | * @param {Object} options An options object.
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83 | * @returns {string[]} The equivalent glob patterns and filepath strings.
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84 | */
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85 | function resolveFileGlobPatterns(patterns, options) {
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86 |
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87 | const processPathExtensions = processPath(options);
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88 |
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89 | return patterns.filter(p => p.length).map(processPathExtensions);
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90 | }
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91 |
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92 | const dotfilesPattern = /(?:(?:^\.)|(?:[/\\]\.))[^/\\.].*/;
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93 |
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94 | /**
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95 | * Build a list of absolute filesnames on which ESLint will act.
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96 | * Ignored files are excluded from the results, as are duplicates.
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97 | *
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98 | * @param {string[]} globPatterns Glob patterns.
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99 | * @param {Object} [providedOptions] An options object.
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100 | * @param {string} [providedOptions.cwd] CWD (considered for relative filenames)
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101 | * @param {boolean} [providedOptions.ignore] False disables use of .eslintignore.
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102 | * @param {string} [providedOptions.ignorePath] The ignore file to use instead of .eslintignore.
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103 | * @param {string} [providedOptions.ignorePattern] A pattern of files to ignore.
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104 | * @returns {string[]} Resolved absolute filenames.
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105 | */
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106 | function listFilesToProcess(globPatterns, providedOptions) {
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107 | const options = providedOptions || { ignore: true };
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108 | const files = [];
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109 | const addedFilenames = new Set();
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110 |
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111 | const cwd = options.cwd || process.cwd();
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112 |
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113 | const getIgnorePaths = lodash.memoize(
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114 | optionsObj =>
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115 | new IgnoredPaths(optionsObj)
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116 | );
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117 |
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118 | /**
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119 | * Executes the linter on a file defined by the `filename`. Skips
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120 | * any files that are already linted.
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121 | * @param {string} filename The file to be processed
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122 | * @param {boolean} isDirectPath True if the file
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123 | * was provided as a direct path (as opposed to being resolved from a glob)
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124 | * @param {IgnoredPaths} ignoredPaths An instance of IgnoredPaths
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125 | * @returns {void}
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126 | */
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127 | function addFile(filename, isDirectPath, ignoredPaths) {
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128 | if (addedFilenames.has(filename)) {
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129 | return;
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130 | }
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131 |
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132 | const shouldProcessCustomIgnores = options.ignore !== false;
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133 | const shouldLintIgnoredDirectPaths = options.ignore === false;
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134 | const fileMatchesIgnorePatterns = ignoredPaths.contains(filename, "default") ||
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135 | (shouldProcessCustomIgnores && ignoredPaths.contains(filename, "custom"));
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136 |
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137 | if (fileMatchesIgnorePatterns && isDirectPath && !shouldLintIgnoredDirectPaths) {
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138 | files.push({ filename, ignored: true });
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139 | addedFilenames.add(filename);
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140 | }
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141 |
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142 | if (!fileMatchesIgnorePatterns || (isDirectPath && shouldLintIgnoredDirectPaths)) {
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143 | files.push({ filename, ignored: false });
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144 | addedFilenames.add(filename);
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145 | }
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146 | }
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147 |
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148 | debug("Creating list of files to process.");
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149 | globPatterns.forEach(pattern => {
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150 | const file = path.resolve(cwd, pattern);
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151 |
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152 | if (fs.existsSync(file) && fs.statSync(file).isFile()) {
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153 | const ignoredPaths = getIgnorePaths(options);
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154 |
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155 | addFile(fs.realpathSync(file), true, ignoredPaths);
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156 | } else {
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157 |
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158 | // regex to find .hidden or /.hidden patterns, but not ./relative or ../relative
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159 | const globIncludesDotfiles = dotfilesPattern.test(pattern);
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160 | let newOptions = options;
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161 |
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162 | if (!options.dotfiles) {
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163 | newOptions = Object.assign({}, options, { dotfiles: globIncludesDotfiles });
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164 | }
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165 |
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166 | const ignoredPaths = getIgnorePaths(newOptions);
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167 | const shouldIgnore = ignoredPaths.getIgnoredFoldersGlobChecker();
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168 | const globOptions = {
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169 | nodir: true,
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170 | dot: true,
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171 | cwd
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172 | };
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173 |
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174 | new GlobSync(pattern, globOptions, shouldIgnore).found.forEach(globMatch => {
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175 | addFile(path.resolve(cwd, globMatch), false, ignoredPaths);
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176 | });
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177 | }
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178 | });
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179 |
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180 | return files;
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181 | }
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182 |
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183 | module.exports = {
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184 | resolveFileGlobPatterns,
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185 | listFilesToProcess
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186 | };
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