All files install-predicates.js

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const bytes = require('bytes');
 
const sizePredicate = (threshold, source) => {
  const realThreshold = bytes(threshold.toString());
 
  const predicate = stats => {
    if (stats.size <= realThreshold) return {canInstall: true};
 
    return {
      canInstall: false,
      reason: 'size over threshold',
      details: `${bytes(stats.size)} > ${bytes(realThreshold)}`
    };
  };
  predicate.description = `size limit of ${bytes(realThreshold)}`;
  predicate.threshold = realThreshold;
  predicate.source = source;
  return predicate;
};
 
const gzipSizePredicate = (threshold, source) => {
  const realThreshold = bytes(threshold.toString());
 
  const predicate = stats => {
    if (stats.gzip <= realThreshold) return {canInstall: true};
 
    return {
      canInstall: false,
      reason: 'gzip size over threshold',
      details: `${bytes(stats.gzip)} > ${bytes(realThreshold)}`
    };
  };
  predicate.description = `gzip size limit of ${bytes(realThreshold)}`;
  predicate.threshold = realThreshold;
  predicate.source = source;
  return predicate;
};
 
const globalSizePredicate = (threshold, source) => {
  const realThreshold = bytes(threshold.toString());
 
  const predicate = (installedStats, toInstallStats) => {
    Eif (installedStats.size + toInstallStats.size <= realThreshold) return {canInstall: true};
 
    return {
      canInstall: false,
      reason: 'overall size after install would be over threshold',
      details: `${bytes(installedStats.size)} installed + ${bytes(toInstallStats.size)} > ${bytes(
        realThreshold
      )}`
    };
  };
  predicate.description = `overall size limit of ${bytes(realThreshold)}`;
  predicate.threshold = realThreshold;
  predicate.source = source;
  return predicate;
};
 
const globalGzipSizePredicate = (threshold, source) => {
  const realThreshold = bytes(threshold.toString());
 
  const predicate = (installedStats, toInstallStats) => {
    if (installedStats.gzip + toInstallStats.gzip <= realThreshold) return {canInstall: true};
 
    return {
      canInstall: false,
      reason: 'overall gzip size after install would be over threshold',
      details: `${bytes(installedStats.gzip)} installed + ${bytes(toInstallStats.gzip)} > ${bytes(
        realThreshold
      )}`
    };
  };
  predicate.description = `gzip size limit of ${bytes(realThreshold)}`;
  predicate.threshold = realThreshold;
  predicate.source = source;
  return predicate;
};
 
module.exports = {sizePredicate, gzipSizePredicate, globalSizePredicate, globalGzipSizePredicate};