all files / lib/component/ resolveConflict.js

76.84% Statements 73/95
65% Branches 13/20
73.08% Functions 19/26
76.84% Lines 73/95
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'use strict';
 
var _ = require('lodash');
var semver = require('semver');
var inquirer = require('inquirer');
 
var fecom = require('../fecom');
var Component = require('./Component');
 
function buildConflictList(treeModel, installed) {
  var nodes = treeModel.walk('DFS');
  var toInstallAll = _.tail(nodes)
    .filter(function (node) {
      return !node.installed && !node.merged;
    }).map(function (node) {
      return new Component(node, 'remote');
    });
  var allComponents = toInstallAll.concat(installed);
  // Check if components with same name belong to different owners
  var componentList = _(allComponents)
    .groupBy('name')
    .value();
  var conflictList = [];
 
  _.invokeMap(componentList, function () {
    var components = _(this).uniqBy('owner').value();
 
    Iif (components.length > 1) {
      conflictList.push({
        name: components[0].name,
        owners: components.map(function (component) {
          return component.owner;
        })
      });
    }
  });
 
  Iif (conflictList.length > 0) {
    var err = new Error(fecom.i18n('COMPONENT_OWNERS_CONFLICT'));
    err.conflictList = conflictList;
    throw err;
  }
 
  return _(allComponents)
    .groupBy(function (node) {
      return node.owner + '/' + node.name;
    })
    .mapValues(function (list) {
 
      Iif (list.some(function (component) {
          return component.resolved;
        })) {
        return list.filter(function (component) {
          return component.resolved;
        }).slice(0, 1);
      }
 
      return list;
    })
    .value();
}
 
function resolveTreeConflict(treeModel, semantic, resolvedVersion, conflicts) {
  var parsed = fecom.parse(semantic);
  parsed.version = resolvedVersion;
  var toResolve = _.filter(conflicts, parsed).slice(0, 1);
  var toRemove = _.reject(conflicts, parsed);
  var toResolvePaths = [];
  var toRemovePaths = [];
  toResolvePaths = toResolve.reduce(function (paths, component) {
    paths = paths.concat(treeModel.getPathByNode(_.pick(component, ['name', 'owner', 'version'])));
    return paths;
  }, toResolvePaths);
  toRemovePaths = toRemove.reduce(function (paths, component) {
    paths = paths.concat(treeModel.getPathByNode(_.pick(component, ['name', 'owner', 'version'])));
    return paths;
  }, toRemovePaths);
  toResolvePaths.forEach(function (path) {
    treeModel.updateTreeByPath(path, { resolved: true });
  });
  toRemovePaths.forEach(function (path) {
    treeModel.removeTreeByPath(path);
  });
  return treeModel;
}
 
function resolveConflictByAsk(treeModel, installed) {
  var conflictList = buildConflictList(treeModel, installed);
  var conflicted = '';
  var conflicts = [];
  var questions = [];
  var choices = [];
 
  _.forIn(conflictList, function (components, semantic) {
 
    Eif (1 === components.length) {
      return true;
    }
 
    conflicted = semantic;
    conflicts = components;
    choices = components.map(function (component) {
      return {
        name: component.version + ' ($0)'.replace('$0', fecom.i18n((component.type === 'local' ? 'INSTALLED' : 'TO_INSTALL'))),
        value: component.version
      };
    });
    choices = _.uniqBy(choices, 'value');
    return false;
  });
 
  Iif (choices.length) {
    questions = {
      name: 'version',
      message: 'Please choose a version: ',
      type: 'list',
      choices: choices
    };
    fecom.logger.info(fecom.i18n('COMPONENT_VERSION_CONFLICT', conflicted));
    return inquirer.prompt(questions)
      .then(function (answers) {
        resolveTreeConflict(treeModel, conflicted, answers.version, conflicts);
        return resolveConflictByAsk(treeModel, installed);
      })
      .then(function () {
        return treeModel;
      });
  }
 
  return treeModel;
}
 
function resolveConflictByLatest(treeModel, installed) {
  var conflictList = buildConflictList(treeModel, installed);
  var conflicted = '';
  var conflictVersions = '';
  var conflicts = [];
  var resolved = null;
 
  _.forIn(conflictList, function (components, semantic) {
 
    if (1 === components.length) {
      return true;
    }
    // Resolve conflict by latest
    conflicted = semantic;
    conflicts = components;
    conflictVersions = components.map(function (component) {
      return component.version;
    }).join(',');
    resolved = conflicts.sort(function (a, b) {
      return semver.compare(a.version, b.version);
    }).pop();
    return false;
  });
 
  if (resolved) {
    fecom.logger.info(fecom.i18n('MERGE_CONFLICT_VERSIONS', conflicted.yellow, conflictVersions.red, resolved.version.yellow));
    return fecom.async(resolved)
      .then(function (resolved) {
        resolveTreeConflict(treeModel, conflicted, resolved.version, conflicts);
        return resolveConflictByLatest(treeModel, installed);
      })
      .then(function () {
        return treeModel;
      });
  }
 
  return treeModel;
}
 
module.exports = function (treeModel, installed, strategy) {
  return 'ask' === strategy ? resolveConflictByAsk(treeModel, installed) : resolveConflictByLatest(treeModel, installed);
};