Importing only specific modules from "lodash"

package.json

@@ -41,7 +41,10 @@
     "dagre-layout": "^0.8.8",
     "graphlibrary": "^2.2.0",
     "he": "^1.2.0",
-    "lodash": "^4.17.11",
+    "lodash.assign": "^4.2.0",
+    "lodash.maxby": "^4.6.0",
+    "lodash.orderby": "^4.6.0",
+    "lodash.uniqby": "^4.7.0",
     "moment-mini": "^2.22.1",
     "scope-css": "^1.2.1"
   },

src/diagrams/git/gitGraphAst.js

@@ -1,4 +1,6 @@
-import _ from 'lodash'
+import maxBy from 'lodash.maxby'
+import orderBy from 'lodash.orderby'
+import uniqBy from 'lodash.uniqby'
 
 import { logger } from '../../logger'
 
@@ -145,7 +147,7 @@ function upsert (arr, key, newval) {
 }
 
 function prettyPrintCommitHistory (commitArr) {
-  const commit = _.maxBy(commitArr, 'seq')
+  const commit = maxBy(commitArr, 'seq')
   let line = ''
   commitArr.forEach(function (c) {
     if (c === commit) {
@@ -155,9 +157,9 @@ function prettyPrintCommitHistory (commitArr) {
     }
   })
   const label = [line, commit.id, commit.seq]
-  _.each(branches, function (value, key) {
-    if (value === commit.id) label.push(key)
-  })
+  for (let branch in branches) {
+    if (branches[branch] === commit.id) label.push(branch)
+  }
   logger.debug(label.join(' '))
   if (Array.isArray(commit.parent)) {
     const newCommit = commits[commit.parent[0]]
@@ -169,7 +171,7 @@ function prettyPrintCommitHistory (commitArr) {
     const nextCommit = commits[commit.parent]
     upsert(commitArr, commit, nextCommit)
   }
-  commitArr = _.uniqBy(commitArr, 'id')
+  commitArr = uniqBy(commitArr, 'id')
   prettyPrintCommitHistory(commitArr)
 }
 
@@ -188,9 +190,10 @@ export const clear = function () {
 }
 
 export const getBranchesAsObjArray = function () {
-  const branchArr = _.map(branches, function (value, key) {
-    return { 'name': key, 'commit': commits[value] }
-  })
+  const branchArr = []
+  for (let branch in branches) {
+    branchArr.push({ name: branch, commit: commits[branches[branch]] })
+  }
   return branchArr
 }
 
@@ -201,7 +204,7 @@ export const getCommitsArray = function () {
     return commits[key]
   })
   commitArr.forEach(function (o) { logger.debug(o.id) })
-  return _.orderBy(commitArr, ['seq'], ['desc'])
+  return orderBy(commitArr, ['seq'], ['desc'])
 }
 export const getCurrentBranch = function () { return curBranch }
 export const getDirection = function () { return direction }

src/diagrams/git/gitGraphRenderer.js

@@ -1,5 +1,5 @@
-import _ from 'lodash'
 import * as d3 from 'd3'
+import assign from 'lodash.assign'
 
 import db from './gitGraphAst'
 import gitGraphParser from './parser/gitGraph'
@@ -160,7 +160,7 @@ function cloneNode (svg, selector) {
 function renderCommitHistory (svg, commitid, branches, direction) {
   let commit
   const numCommits = Object.keys(allCommitsDict).length
-  if (_.isString(commitid)) {
+  if (typeof commitid === 'string') {
     do {
       commit = allCommitsDict[commitid]
       logger.debug('in renderCommitHistory', commit.id, commit.seq)
@@ -189,7 +189,13 @@ function renderCommitHistory (svg, commitid, branches, direction) {
         .attr('stroke', config.nodeStrokeColor)
         .attr('stroke-width', config.nodeStrokeWidth)
 
-      const branch = _.find(branches, ['commit', commit])
+      let branch
+      for (let branchName in branches) {
+        if (branches[branchName].commit === commit) {
+          branch = branches[branchName]
+          break
+        }
+      }
       if (branch) {
         logger.debug('found branch ', branch.name)
         svg.select('#node-' + commit.id + ' p')
@@ -211,7 +217,7 @@ function renderCommitHistory (svg, commitid, branches, direction) {
     } while (commitid && allCommitsDict[commitid])
   }
 
-  if (_.isArray(commitid)) {
+  if (Array.isArray(commitid)) {
     logger.debug('found merge commmit', commitid)
     renderCommitHistory(svg, commitid[0], branches, direction)
     branchNum++
@@ -223,11 +229,11 @@ function renderCommitHistory (svg, commitid, branches, direction) {
 function renderLines (svg, commit, direction, branchColor) {
   branchColor = branchColor || 0
   while (commit.seq > 0 && !commit.lineDrawn) {
-    if (_.isString(commit.parent)) {
+    if (typeof commit.parent === 'string') {
       svgDrawLineForCommits(svg, commit.id, commit.parent, direction, branchColor)
       commit.lineDrawn = true
       commit = allCommitsDict[commit.parent]
-    } else if (_.isArray(commit.parent)) {
+    } else if (Array.isArray(commit.parent)) {
       svgDrawLineForCommits(svg, commit.id, commit.parent[0], direction, branchColor)
       svgDrawLineForCommits(svg, commit.id, commit.parent[1], direction, branchColor + 1)
       renderLines(svg, allCommitsDict[commit.parent[1]], direction, branchColor + 1)
@@ -246,7 +252,7 @@ export const draw = function (txt, id, ver) {
     // Parse the graph definition
     parser.parse(txt + '\n')
 
-    config = _.extend(config, apiConfig, db.getOptions())
+    config = assign(config, apiConfig, db.getOptions())
     logger.debug('effective options', config)
     const direction = db.getDirection()
     allCommitsDict = db.getCommits()
@@ -259,11 +265,12 @@ export const draw = function (txt, id, ver) {
     const svg = d3.select(`[id="${id}"]`)
     svgCreateDefs(svg)
     branchNum = 1
-    _.each(branches, function (v) {
+    for (let branch in branches) {
+      const v = branches[branch]
       renderCommitHistory(svg, v.commit.id, branches, direction)
       renderLines(svg, v.commit, direction)
       branchNum++
-    })
+    }
     svg.attr('height', function () {
       if (direction === 'BT') return Object.keys(allCommitsDict).length * config.nodeSpacing
       return (branches.length + 1) * config.branchOffset

yarn.lock

@@ -5163,11 +5163,21 @@ lodash.keys@^3.0.0:
     lodash.isarguments "^3.0.0"
     lodash.isarray "^3.0.0"
 
+lodash.maxby@^4.6.0:
+  version "4.6.0"
+  resolved "https://registry.yarnpkg.com/lodash.maxby/-/lodash.maxby-4.6.0.tgz#082240068f3c7a227aa00a8380e4f38cf0786e3d"
+  integrity sha1-CCJABo88eiJ6oAqDgOTzjPB4bj0=
+
 lodash.mergewith@^4.6.0:
   version "4.6.1"
   resolved "https://registry.yarnpkg.com/lodash.mergewith/-/lodash.mergewith-4.6.1.tgz#639057e726c3afbdb3e7d42741caa8d6e4335927"
   integrity sha512-eWw5r+PYICtEBgrBE5hhlT6aAa75f411bgDz/ZL2KZqYV03USvucsxcHUIlGTDTECs1eunpI7HOV7U+WLDvNdQ==
 
+lodash.orderby@^4.6.0:
+  version "4.6.0"
+  resolved "https://registry.yarnpkg.com/lodash.orderby/-/lodash.orderby-4.6.0.tgz#e697f04ce5d78522f54d9338b32b81a3393e4eb3"
+  integrity sha1-5pfwTOXXhSL1TZM4syuBozk+TrM=
+
 lodash.restparam@^3.0.0:
   version "3.6.1"
   resolved "https://registry.yarnpkg.com/lodash.restparam/-/lodash.restparam-3.6.1.tgz#936a4e309ef330a7645ed4145986c85ae5b20805"
@@ -5203,6 +5213,11 @@ lodash.templatesettings@^3.0.0:
     lodash._reinterpolate "^3.0.0"
     lodash.escape "^3.0.0"
 
+lodash.uniqby@^4.7.0:
+  version "4.7.0"
+  resolved "https://registry.yarnpkg.com/lodash.uniqby/-/lodash.uniqby-4.7.0.tgz#d99c07a669e9e6d24e1362dfe266c67616af1302"
+  integrity sha1-2ZwHpmnp5tJOE2Lf4mbGdhavEwI=
+
 lodash@^4.0.0, lodash@^4.13.1, lodash@^4.17.10, lodash@^4.17.11, lodash@^4.3.0, lodash@~4.17.10:
   version "4.17.11"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.11.tgz#b39ea6229ef607ecd89e2c8df12536891cac9b8d"