3 examples of 'how to remove node modules' in JavaScript

111
function cleanNodeModulePackages() {
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  return del(cleanGlobs);
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}

186
static _cleanModules(modules, pathToNodeModules) {
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  modules.forEach((p) => {
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    p.version = WebpackCdnPlugin.getVersionInNodeModules(p.name, pathToNodeModules);
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    if (!p.paths) {
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      p.paths = [];
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    }
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    if (p.path) {
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      p.paths.unshift(p.path);
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      p.path = undefined;
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    }
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    if (p.paths.length === 0 && !p.cssOnly) {
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      p.paths.push(
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        require
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          .resolve(p.name)
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          .match(/[\\/]node_modules[\\/].+?[\\/](.*)/)[1]
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          .replace(/\\/g, '/'),
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      );
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    }
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    if (!p.styles) {
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      p.styles = [];
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    }
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    if (p.style) {
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      p.styles.unshift(p.style);
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      p.style = undefined;
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    }
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  });
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}

34
function cleanModulesIfVersionChanged(bosco, repoPath, repo, next) {
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  NodeRunner.getVersion(bosco, { cwd: repoPath }, function (err, currentVersion) {
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    if (err) { return next(err); }
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    var nodeVersionKey = 'teams:' + bosco.getTeam() + ':nodes:' + repo;
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    var lastVersion = bosco.config.get(nodeVersionKey);
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    if (lastVersion && lastVersion !== currentVersion) {
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      bosco.prompt.start();
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      var confirmationDescription = 'Node version in '.white + repo.cyan + ' has changed from '.white + lastVersion.green + ' to '.white + currentVersion.green + ', should I clear node_modules (y/N)?'.white;
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      bosco.prompt.get({
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        properties: {
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          confirm: {
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            description: confirmationDescription
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          }
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        }
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      }, function (err, result) {
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        if (!result || (result.confirm !== 'Y' && result.confirm !== 'y')) {
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          return next();
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        }
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        exec('rm -rf ./node_modules', { cwd: repoPath }, function (err, stdout, stderr) {
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          if (err) {
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            bosco.error('Failed to clear node_modules for ' + repoPath.blue + ' >> ' + stderr);
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          } else {
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            bosco.log('Node version in ' + repo.green + ' updated to ' + currentVersion.green);
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            bosco.config.set(nodeVersionKey, currentVersion);
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          }
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          next();
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        });
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      });
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    } else {
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      bosco.log('Node version in ' + repo.green + ' is OK at ' + currentVersion.green);
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      bosco.config.set(nodeVersionKey, currentVersion);
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      next();
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    }
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  });
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}