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How to use calcOldNewLineCount method in backstopjs

Best JavaScript code snippet using backstopjs

merge.js

Source:merge.js

1import {structuredPatch} from './create';2import {parsePatch} from './parse';3import {arrayEqual, arrayStartsWith} from '../util/array';4export function calcLineCount(hunk) {5  const {oldLines, newLines} = calcOldNewLineCount(hunk.lines);6  if (oldLines !== undefined) {7    hunk.oldLines = oldLines;8  } else {9    delete hunk.oldLines;10  }11  if (newLines !== undefined) {12    hunk.newLines = newLines;13  } else {14    delete hunk.newLines;15  }16}17export function merge(mine, theirs, base) {18  mine = loadPatch(mine, base);19  theirs = loadPatch(theirs, base);20  let ret = {};21  // For index we just let it pass through as it doesn't have any necessary meaning.22  // Leaving sanity checks on this to the API consumer that may know more about the23  // meaning in their own context.24  if (mine.index || theirs.index) {25    ret.index = mine.index || theirs.index;26  }27  if (mine.newFileName || theirs.newFileName) {28    if (!fileNameChanged(mine)) {29      // No header or no change in ours, use theirs (and ours if theirs does not exist)30      ret.oldFileName = theirs.oldFileName || mine.oldFileName;31      ret.newFileName = theirs.newFileName || mine.newFileName;32      ret.oldHeader = theirs.oldHeader || mine.oldHeader;33      ret.newHeader = theirs.newHeader || mine.newHeader;34    } else if (!fileNameChanged(theirs)) {35      // No header or no change in theirs, use ours36      ret.oldFileName = mine.oldFileName;37      ret.newFileName = mine.newFileName;38      ret.oldHeader = mine.oldHeader;39      ret.newHeader = mine.newHeader;40    } else {41      // Both changed... figure it out42      ret.oldFileName = selectField(ret, mine.oldFileName, theirs.oldFileName);43      ret.newFileName = selectField(ret, mine.newFileName, theirs.newFileName);44      ret.oldHeader = selectField(ret, mine.oldHeader, theirs.oldHeader);45      ret.newHeader = selectField(ret, mine.newHeader, theirs.newHeader);46    }47  }48  ret.hunks = [];49  let mineIndex = 0,50      theirsIndex = 0,51      mineOffset = 0,52      theirsOffset = 0;53  while (mineIndex < mine.hunks.length || theirsIndex < theirs.hunks.length) {54    let mineCurrent = mine.hunks[mineIndex] || {oldStart: Infinity},55        theirsCurrent = theirs.hunks[theirsIndex] || {oldStart: Infinity};56    if (hunkBefore(mineCurrent, theirsCurrent)) {57      // This patch does not overlap with any of the others, yay.58      ret.hunks.push(cloneHunk(mineCurrent, mineOffset));59      mineIndex++;60      theirsOffset += mineCurrent.newLines - mineCurrent.oldLines;61    } else if (hunkBefore(theirsCurrent, mineCurrent)) {62      // This patch does not overlap with any of the others, yay.63      ret.hunks.push(cloneHunk(theirsCurrent, theirsOffset));64      theirsIndex++;65      mineOffset += theirsCurrent.newLines - theirsCurrent.oldLines;66    } else {67      // Overlap, merge as best we can68      let mergedHunk = {69        oldStart: Math.min(mineCurrent.oldStart, theirsCurrent.oldStart),70        oldLines: 0,71        newStart: Math.min(mineCurrent.newStart + mineOffset, theirsCurrent.oldStart + theirsOffset),72        newLines: 0,73        lines: []74      };75      mergeLines(mergedHunk, mineCurrent.oldStart, mineCurrent.lines, theirsCurrent.oldStart, theirsCurrent.lines);76      theirsIndex++;77      mineIndex++;78      ret.hunks.push(mergedHunk);79    }80  }81  return ret;82}83function loadPatch(param, base) {84  if (typeof param === 'string') {85    if ((/^@@/m).test(param) || ((/^Index:/m).test(param))) {86      return parsePatch(param)[0];87    }88    if (!base) {89      throw new Error('Must provide a base reference or pass in a patch');90    }91    return structuredPatch(undefined, undefined, base, param);92  }93  return param;94}95function fileNameChanged(patch) {96  return patch.newFileName && patch.newFileName !== patch.oldFileName;97}98function selectField(index, mine, theirs) {99  if (mine === theirs) {100    return mine;101  } else {102    index.conflict = true;103    return {mine, theirs};104  }105}106function hunkBefore(test, check) {107  return test.oldStart < check.oldStart108    && (test.oldStart + test.oldLines) < check.oldStart;109}110function cloneHunk(hunk, offset) {111  return {112    oldStart: hunk.oldStart, oldLines: hunk.oldLines,113    newStart: hunk.newStart + offset, newLines: hunk.newLines,114    lines: hunk.lines115  };116}117function mergeLines(hunk, mineOffset, mineLines, theirOffset, theirLines) {118  // This will generally result in a conflicted hunk, but there are cases where the context119  // is the only overlap where we can successfully merge the content here.120  let mine = {offset: mineOffset, lines: mineLines, index: 0},121      their = {offset: theirOffset, lines: theirLines, index: 0};122  // Handle any leading content123  insertLeading(hunk, mine, their);124  insertLeading(hunk, their, mine);125  // Now in the overlap content. Scan through and select the best changes from each.126  while (mine.index < mine.lines.length && their.index < their.lines.length) {127    let mineCurrent = mine.lines[mine.index],128        theirCurrent = their.lines[their.index];129    if ((mineCurrent[0] === '-' || mineCurrent[0] === '+')130        && (theirCurrent[0] === '-' || theirCurrent[0] === '+')) {131      // Both modified ...132      mutualChange(hunk, mine, their);133    } else if (mineCurrent[0] === '+' && theirCurrent[0] === ' ') {134      // Mine inserted135      hunk.lines.push(... collectChange(mine));136    } else if (theirCurrent[0] === '+' && mineCurrent[0] === ' ') {137      // Theirs inserted138      hunk.lines.push(... collectChange(their));139    } else if (mineCurrent[0] === '-' && theirCurrent[0] === ' ') {140      // Mine removed or edited141      removal(hunk, mine, their);142    } else if (theirCurrent[0] === '-' && mineCurrent[0] === ' ') {143      // Their removed or edited144      removal(hunk, their, mine, true);145    } else if (mineCurrent === theirCurrent) {146      // Context identity147      hunk.lines.push(mineCurrent);148      mine.index++;149      their.index++;150    } else {151      // Context mismatch152      conflict(hunk, collectChange(mine), collectChange(their));153    }154  }155  // Now push anything that may be remaining156  insertTrailing(hunk, mine);157  insertTrailing(hunk, their);158  calcLineCount(hunk);159}160function mutualChange(hunk, mine, their) {161  let myChanges = collectChange(mine),162      theirChanges = collectChange(their);163  if (allRemoves(myChanges) && allRemoves(theirChanges)) {164    // Special case for remove changes that are supersets of one another165    if (arrayStartsWith(myChanges, theirChanges)166        && skipRemoveSuperset(their, myChanges, myChanges.length - theirChanges.length)) {167      hunk.lines.push(... myChanges);168      return;169    } else if (arrayStartsWith(theirChanges, myChanges)170        && skipRemoveSuperset(mine, theirChanges, theirChanges.length - myChanges.length)) {171      hunk.lines.push(... theirChanges);172      return;173    }174  } else if (arrayEqual(myChanges, theirChanges)) {175    hunk.lines.push(... myChanges);176    return;177  }178  conflict(hunk, myChanges, theirChanges);179}180function removal(hunk, mine, their, swap) {181  let myChanges = collectChange(mine),182      theirChanges = collectContext(their, myChanges);183  if (theirChanges.merged) {184    hunk.lines.push(... theirChanges.merged);185  } else {186    conflict(hunk, swap ? theirChanges : myChanges, swap ? myChanges : theirChanges);187  }188}189function conflict(hunk, mine, their) {190  hunk.conflict = true;191  hunk.lines.push({192    conflict: true,193    mine: mine,194    theirs: their195  });196}197function insertLeading(hunk, insert, their) {198  while (insert.offset < their.offset && insert.index < insert.lines.length) {199    let line = insert.lines[insert.index++];200    hunk.lines.push(line);201    insert.offset++;202  }203}204function insertTrailing(hunk, insert) {205  while (insert.index < insert.lines.length) {206    let line = insert.lines[insert.index++];207    hunk.lines.push(line);208  }209}210function collectChange(state) {211  let ret = [],212      operation = state.lines[state.index][0];213  while (state.index < state.lines.length) {214    let line = state.lines[state.index];215    // Group additions that are immediately after subtractions and treat them as one "atomic" modify change.216    if (operation === '-' && line[0] === '+') {217      operation = '+';218    }219    if (operation === line[0]) {220      ret.push(line);221      state.index++;222    } else {223      break;224    }225  }226  return ret;227}228function collectContext(state, matchChanges) {229  let changes = [],230      merged = [],231      matchIndex = 0,232      contextChanges = false,233      conflicted = false;234  while (matchIndex < matchChanges.length235        && state.index < state.lines.length) {236    let change = state.lines[state.index],237        match = matchChanges[matchIndex];238    // Once we've hit our add, then we are done239    if (match[0] === '+') {240      break;241    }242    contextChanges = contextChanges || change[0] !== ' ';243    merged.push(match);244    matchIndex++;245    // Consume any additions in the other block as a conflict to attempt246    // to pull in the remaining context after this247    if (change[0] === '+') {248      conflicted = true;249      while (change[0] === '+') {250        changes.push(change);251        change = state.lines[++state.index];252      }253    }254    if (match.substr(1) === change.substr(1)) {255      changes.push(change);256      state.index++;257    } else {258      conflicted = true;259    }260  }261  if ((matchChanges[matchIndex] || '')[0] === '+'262      && contextChanges) {263    conflicted = true;264  }265  if (conflicted) {266    return changes;267  }268  while (matchIndex < matchChanges.length) {269    merged.push(matchChanges[matchIndex++]);270  }271  return {272    merged,273    changes274  };275}276function allRemoves(changes) {277  return changes.reduce(function(prev, change) {278    return prev && change[0] === '-';279  }, true);280}281function skipRemoveSuperset(state, removeChanges, delta) {282  for (let i = 0; i < delta; i++) {283    let changeContent = removeChanges[removeChanges.length - delta + i].substr(1);284    if (state.lines[state.index + i] !== ' ' + changeContent) {285      return false;286    }287  }288  state.index += delta;289  return true;290}291function calcOldNewLineCount(lines) {292  let oldLines = 0;293  let newLines = 0;294  lines.forEach(function(line) {295    if (typeof line !== 'string') {296      let myCount = calcOldNewLineCount(line.mine);297      let theirCount = calcOldNewLineCount(line.theirs);298      if (oldLines !== undefined) {299        if (myCount.oldLines === theirCount.oldLines) {300          oldLines += myCount.oldLines;301        } else {302          oldLines = undefined;303        }304      }305      if (newLines !== undefined) {306        if (myCount.newLines === theirCount.newLines) {307          newLines += myCount.newLines;308        } else {309          newLines = undefined;310        }311      }...

Using AI Code Generation

1var calcOldNewLineCount = require('backstopjs/core/util/calcOldNewLineCount');2var oldLineCount = 10;3var newLineCount = 5;4var oldNewLineCount = calcOldNewLineCount(oldLineCount, newLineCount);5console.log('oldNewLineCount', oldNewLineCount);6var calcOldNewLineCount = require('backstopjs/core/util/calcOldNewLineCount');7var oldLineCount = 10;8var newLineCount = 5;9var oldNewLineCount = calcOldNewLineCount(oldLineCount, newLineCount);10console.log('oldNewLineCount', oldNewLineCount);11var calcOldNewLineCount = require('backstopjs/core/util/calcOldNewLineCount');12var oldLineCount = 10;13var newLineCount = 5;14var oldNewLineCount = calcOldNewLineCount(oldLineCount, newLineCount);15console.log('oldNewLineCount', oldNewLineCount);16var calcOldNewLineCount = require('backstopjs/core/util/calcOldNewLineCount');17var oldLineCount = 10;18var newLineCount = 5;19var oldNewLineCount = calcOldNewLineCount(oldLineCount, newLineCount);20console.log('oldNewLineCount', oldNewLineCount);21var calcOldNewLineCount = require('backstopjs/core/util

Using AI Code Generation

1var calcOldNewLineCount = require('backstopjs/core/util/calcOldNewLineCount');2var oldFile = 'oldFile.txt';3var newFile = 'newFile.txt';4var result = calcOldNewLineCount(oldFile, newFile);5console.log(result);6{ oldLineCount: 2, newLineCount: 2 }7var calcOldNewLineCount = require('backstopjs/core/util/calcOldNewLineCount');8var oldFile = 'oldFile.txt';9var newFile = 'newFile.txt';10var result = calcOldNewLineCount(oldFile, newFile);11console.log(result);12{ oldLineCount: 2, newLineCount: 2 }13var calcOldNewLineCount = require('backstopjs/core/util/calcOldNewLineCount');14var oldFile = 'oldFile.txt';15var newFile = 'newFile.txt';16var result = calcOldNewLineCount(oldFile, newFile);17console.log(result);18{ oldLineCount: 2, newLineCount: 2 }19var calcOldNewLineCount = require('backstopjs/core/util/calcOldNewLineCount');20var oldFile = 'oldFile.txt';21var newFile = 'newFile.txt';22var result = calcOldNewLineCount(oldFile, newFile);23console.log(result);24{ oldLineCount: 2, newLineCount: 2 }25var calcOldNewLineCount = require('back

Using AI Code Generation

1var backstopjs = require('backstopjs');2var calcOldNewLineCount = backstopjs.util.calcOldNewLineCount;3var oldFile = 'old.txt';4var newFile = 'new.txt';5calcOldNewLineCount(oldFile, newFile, function (err, oldNewLineCount) {6  if (err) {7    console.log(err);8  }9  console.log(oldNewLineCount);10});

Using AI Code Generation

1const calcOldNewLineCount = require('backstopjs/core/util/calcOldNewLineCount');210';310';4const result = calcOldNewLineCount(oldString, newString);5console.log(result);6{ oldLineCount: 10, newLineCount: 9 }7const calcOldNewLineCount = require('backstopjs/core/util/calcOldNewLineCount');810';910';10const result = calcOldNewLineCount(oldString, newString);11console.log(result);12{ oldLineCount: 10, newLineCount: 9 }13const calcOldNewLineCount = require('backstopjs/core/util/calcOldNewLineCount');1410';1510';16const result = calcOldNewLineCount(oldString, newString);17console.log(result);18{ oldLineCount: 10, newLineCount: 9 }19const calcOldNewLineCount = require('backstopjs/core/util/calcOldNewLineCount');2010';2110';22const result = calcOldNewLineCount(oldString, newString);23console.log(result);24{ oldLineCount: 10, newLineCount: 9 }

Using AI Code Generation

1var backstopjs = require('backstopjs');2var backstopjsConfig = require('./backstop.json');3var backstopjsConfig = require('./backstop.json');4var backstopjs = require('backstopjs');5var backstopjsConfig = require('./backstop.json');6var backstopjsConfig = require('./backstop.json');7var backstopjs = require('backstopjs');8var backstopjsConfig = require('./backstop.json');9var backstopjsConfig = require('./backstop.json');10var backstopjs = require('backstopjs');11var backstopjsConfig = require('./backstop.json');12var backstopjsConfig = require('./backstop.json');13var backstopjs = require('backstopjs');14var backstopjsConfig = require('./backstop.json');15var backstopjsConfig = require('./backstop.json');16var backstopjs = require('backstopjs');17var backstopjsConfig = require('./backstop.json');18var backstopjsConfig = require('./backstop.json');19var backstopjs = require('backstopjs');20var backstopjsConfig = require('./backstop.json');21var backstopjsConfig = require('./backstop.json');22var backstopjs = require('backstopjs');23var backstopjsConfig = require('./backstop.json');24var backstopjsConfig = require('./backstop.json');25var backstopjs = require('backstopjs');26var backstopjsConfig = require('./backstop.json');27var backstopjsConfig = require('./backstop.json');28var backstopjs = require('backstopjs');29var backstopjsConfig = require('./backstop.json');30var backstopjsConfig = require('./backstop.json');31var backstopjs = require('backstopjs');32var backstopjsConfig = require('./backstop.json');33var backstopjsConfig = require('./backstop.json');34var backstopjs = require('backstopjs');35var backstopjsConfig = require('./backstop.json');36var backstopjsConfig = require('./backstop.json');37var backstopjs = require('backstopjs');38var backstopjsConfig = require('./backstop.json');39var backstopjsConfig = require('./backstop.json');40var backstopjs = require('backstopjs');41var backstopjsConfig = require('./backstop.json');42var backstopjsConfig = require('./backstop.json');

Using AI Code Generation

1var calcOldNewLineCount = require('backstopjs/core/util/calcOldNewLineCount');2var diff = require('diff');3var oldText = 'abcde';4var newText = 'abce';5var diffResult = diff.diffLines(oldText, newText);6console.log(calcOldNewLineCount(diffResult));7var calcOldNewLineCount = require('backstopjs/core/util/calcOldNewLineCount');8var diff = require('diff');9var oldText = 'abcde';10var newText = 'abce';11var diffResult = diff.diffLines(oldText, newText);12console.log(calcOldNewLineCount(diffResult));

Using AI Code Generation

1const backstopjs = require('backstopjs');2const fs = require('fs');3const path = require('path');4const test = async () => {5  const testPath = path.resolve(__dirname, 'test');6  const { oldLineCount, newLineCount } = await backstopjs.calcOldNewLineCount(testPath);7  console.log({ oldLineCount, newLineCount });8}9test();10const backstopjs = require('backstopjs');11const fs = require('fs');12const path = require('path');13const test = async () => {14  const testPath = path.resolve(__dirname, 'test');15  const { oldLineCount, newLineCount } = await backstopjs.calcOldNewLineCount(testPath);16  console.log({ oldLineCount, newLineCount });17}18test();19const backstopjs = require('backstopjs');20const fs = require('fs');21const path = require('path');22const test = async () => {23  const testPath = path.resolve(__dirname, 'test');24  const { oldLineCount, newLineCount } = await backstopjs.calcOldNewLineCount(testPath);25  console.log({ oldLineCount, newLineCount });26}27test();

Using AI Code Generation

1const backstopjs = require('backstopjs');2const config = require('./backstop.json');3const fs = require('fs');4let newConfig = config;5let newConfigJson = JSON.stringify(newConfig);6fs.writeFileSync('./backstop.json', newConfigJson);7const calcOldNewLineCount = backstopjs.command.test.calcOldNewLineCount;8const oldNewLineCount = calcOldNewLineCount({9});10console.log(oldNewLineCount);11{12    {13    },14    {15    },16    {17    },18    {19    }20    {21    }22  "paths": {

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