opusdev/vector-similarity-api

1/*2 3nodemon is a utility for node, and replaces the use of the executable4node. So the user calls `nodemon foo.js` instead.5 6nodemon can be run in a number of ways:7 8`nodemon` - tries to use package.json#main property to run9`nodemon` - if no package, looks for index.js10`nodemon app.js` - runs app.js11`nodemon --arg app.js --apparg` - eats arg1, and runs app.js with apparg12`nodemon --apparg` - as above, but passes apparg to package.json#main (or13  index.js)14`nodemon --debug app.js15 16*/17 18var fs = require('fs');19var path = require('path');20var existsSync = fs.existsSync || path.existsSync;21 22module.exports = parse;23 24/**25 * Parses the command line arguments `process.argv` and returns the26 * nodemon options, the user script and the executable script.27 *28 * @param  {Array<string> | string} argv full process arguments, including `node` leading arg29 * @return {Object} { options, script, args }30 */31function parse(argv) {32  if (typeof argv === 'string') {33    argv = argv.split(' ');34  }35 36  var eat = function (i, args) {37    if (i <= args.length) {38      return args.splice(i + 1, 1).pop();39    }40  };41 42  var args = argv.slice(2);43  var script = null;44  var nodemonOptions = { scriptPosition: null };45 46  var nodemonOpt = nodemonOption.bind(null, nodemonOptions);47  var lookForArgs = true;48 49  // move forward through the arguments50  for (var i = 0; i < args.length; i++) {51    // if the argument looks like a file, then stop eating52    if (!script) {53      if (args[i] === '.' || existsSync(args[i])) {54        script = args.splice(i, 1).pop();55 56        // we capture the position of the script because we'll reinsert it in57        // the right place in run.js:command (though I'm not sure we should even58        // take it out of the array in the first place, but this solves passing59        // arguments to the exec process for now).60        nodemonOptions.scriptPosition = i;61        i--;62        continue;63      }64    }65 66    if (lookForArgs) {67      // respect the standard way of saying: hereafter belongs to my script68      if (args[i] === '--') {69        args.splice(i, 1);70        nodemonOptions.scriptPosition = i;71        // cycle back one argument, as we just ate this one up72        i--;73 74        // ignore all further nodemon arguments75        lookForArgs = false;76 77        // move to the next iteration78        continue;79      }80 81      if (nodemonOpt(args[i], eat.bind(null, i, args)) !== false) {82        args.splice(i, 1);83        // cycle back one argument, as we just ate this one up84        i--;85      }86    }87  }88 89  nodemonOptions.script = script;90  nodemonOptions.args = args;91 92  return nodemonOptions;93}94 95 96/**97 * Given an argument (ie. from process.argv), sets nodemon98 * options and can eat up the argument value99 *100 * @param {import('../..').NodemonSettings} options object that will be updated101 * @param {String} arg current argument from argv102 * @param {Function} eatNext the callback to eat up the next argument in argv103 * @return {Boolean} false if argument was not a nodemon arg104 */105function nodemonOption(options, arg, eatNext) {106  // line separation on purpose to help legibility107  if (arg === '--help' || arg === '-h' || arg === '-?') {108    var help = eatNext();109    options.help = help ? help : true;110  } else111 112  if (arg === '--version' || arg === '-v') {113    options.version = true;114  } else115 116  if (arg === '--no-update-notifier') {117    options.noUpdateNotifier = true;118  } else119 120  if (arg === '--spawn') {121    options.spawn = true;122  } else123 124  if (arg === '--dump') {125    options.dump = true;126  } else127 128  if (arg === '--verbose' || arg === '-V') {129    options.verbose = true;130  } else131 132  if (arg === '--legacy-watch' || arg === '-L') {133    options.legacyWatch = true;134  } else135 136  if (arg === '--polling-interval' || arg === '-P') {137    options.pollingInterval = parseInt(eatNext(), 10);138  } else139 140  // Depricated as this is "on" by default141  if (arg === '--js') {142    options.js = true;143  } else144 145  if (arg === '--quiet' || arg === '-q') {146    options.quiet = true;147  } else148 149  if (arg === '--config') {150    options.configFile = eatNext();151  } else152 153  if (arg === '--watch' || arg === '-w') {154    if (!options.watch) { options.watch = []; }155    options.watch.push(eatNext());156  } else157 158  if (arg === '--ignore' || arg === '-i') {159    if (!options.ignore) { options.ignore = []; }160    options.ignore.push(eatNext());161  } else162 163  if (arg === '--exitcrash') {164    options.exitCrash = true;165  } else166 167  if (arg === '--delay' || arg === '-d') {168    options.delay = parseDelay(eatNext());169  } else170 171  if (arg === '--exec' || arg === '-x') {172    options.exec = eatNext();173  } else174 175  if (arg === '--no-stdin' || arg === '-I') {176    options.stdin = false;177  } else178 179  if (arg === '--on-change-only' || arg === '-C') {180    options.runOnChangeOnly = true;181  } else182 183  if (arg === '--ext' || arg === '-e') {184    options.ext = eatNext();185  } else186 187  if (arg === '--no-colours' || arg === '--no-colors') {188    options.colours = false;189  } else190 191  if (arg === '--signal' || arg === '-s') {192    options.signal = eatNext();193  } else194 195  if (arg === '--cwd') {196    options.cwd = eatNext();197 198    // go ahead and change directory. This is primarily for nodemon tools like199    // grunt-nodemon - we're doing this early because it will affect where the200    // user script is searched for.201    process.chdir(path.resolve(options.cwd));202  } else {203 204    // this means we didn't match205    return false;206  }207}208 209/**210 * Given an argument (ie. from nodemonOption()), will parse and return the211 * equivalent millisecond value or 0 if the argument cannot be parsed212 *213 * @param {String} value argument value given to the --delay option214 * @return {Number} millisecond equivalent of the argument215 */216function parseDelay(value) {217  var millisPerSecond = 1000;218  var millis = 0;219 220  if (value.match(/^\d*ms$/)) {221    // Explicitly parse for milliseconds when using ms time specifier222    millis = parseInt(value, 10);223  } else {224    // Otherwise, parse for seconds, with or without time specifier then convert225    millis = parseFloat(value) * millisPerSecond;226  }227 228  return isNaN(millis) ? 0 : millis;229}230 231