v3 new release (#80)

node_modules/jest-diff/build/printDiffs.js

@@ -0,0 +1,257 @@
+'use strict';
+
+Object.defineProperty(exports, '__esModule', {
+  value: true
+});
+exports.diffStringsRaw = exports.diffStringsUnified = exports.createPatchMark = exports.printDiffLines = exports.printAnnotation = exports.countChanges = exports.hasCommonDiff = exports.printCommonLine = exports.printInsertLine = exports.printDeleteLine = void 0;
+
+var _cleanupSemantic = require('./cleanupSemantic');
+
+var _diffLines = require('./diffLines');
+
+var _diffStrings = _interopRequireDefault(require('./diffStrings'));
+
+var _getAlignedDiffs = _interopRequireDefault(require('./getAlignedDiffs'));
+
+var _joinAlignedDiffs = require('./joinAlignedDiffs');
+
+var _normalizeDiffOptions = require('./normalizeDiffOptions');
+
+function _interopRequireDefault(obj) {
+  return obj && obj.__esModule ? obj : {default: obj};
+}
+
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+const formatTrailingSpaces = (line, trailingSpaceFormatter) =>
+  line.replace(/\s+$/, match => trailingSpaceFormatter(match));
+
+const printDiffLine = (
+  line,
+  isFirstOrLast,
+  color,
+  indicator,
+  trailingSpaceFormatter,
+  emptyFirstOrLastLinePlaceholder
+) =>
+  line.length !== 0
+    ? color(
+        indicator + ' ' + formatTrailingSpaces(line, trailingSpaceFormatter)
+      )
+    : indicator !== ' '
+    ? color(indicator)
+    : isFirstOrLast && emptyFirstOrLastLinePlaceholder.length !== 0
+    ? color(indicator + ' ' + emptyFirstOrLastLinePlaceholder)
+    : '';
+
+const printDeleteLine = (
+  line,
+  isFirstOrLast,
+  {
+    aColor,
+    aIndicator,
+    changeLineTrailingSpaceColor,
+    emptyFirstOrLastLinePlaceholder
+  }
+) =>
+  printDiffLine(
+    line,
+    isFirstOrLast,
+    aColor,
+    aIndicator,
+    changeLineTrailingSpaceColor,
+    emptyFirstOrLastLinePlaceholder
+  );
+
+exports.printDeleteLine = printDeleteLine;
+
+const printInsertLine = (
+  line,
+  isFirstOrLast,
+  {
+    bColor,
+    bIndicator,
+    changeLineTrailingSpaceColor,
+    emptyFirstOrLastLinePlaceholder
+  }
+) =>
+  printDiffLine(
+    line,
+    isFirstOrLast,
+    bColor,
+    bIndicator,
+    changeLineTrailingSpaceColor,
+    emptyFirstOrLastLinePlaceholder
+  );
+
+exports.printInsertLine = printInsertLine;
+
+const printCommonLine = (
+  line,
+  isFirstOrLast,
+  {
+    commonColor,
+    commonIndicator,
+    commonLineTrailingSpaceColor,
+    emptyFirstOrLastLinePlaceholder
+  }
+) =>
+  printDiffLine(
+    line,
+    isFirstOrLast,
+    commonColor,
+    commonIndicator,
+    commonLineTrailingSpaceColor,
+    emptyFirstOrLastLinePlaceholder
+  );
+
+exports.printCommonLine = printCommonLine;
+
+const hasCommonDiff = (diffs, isMultiline) => {
+  if (isMultiline) {
+    // Important: Ignore common newline that was appended to multiline strings!
+    const iLast = diffs.length - 1;
+    return diffs.some(
+      (diff, i) =>
+        diff[0] === _cleanupSemantic.DIFF_EQUAL &&
+        (i !== iLast || diff[1] !== '\n')
+    );
+  }
+
+  return diffs.some(diff => diff[0] === _cleanupSemantic.DIFF_EQUAL);
+};
+
+exports.hasCommonDiff = hasCommonDiff;
+
+const countChanges = diffs => {
+  let a = 0;
+  let b = 0;
+  diffs.forEach(diff => {
+    switch (diff[0]) {
+      case _cleanupSemantic.DIFF_DELETE:
+        a += 1;
+        break;
+
+      case _cleanupSemantic.DIFF_INSERT:
+        b += 1;
+        break;
+    }
+  });
+  return {
+    a,
+    b
+  };
+};
+
+exports.countChanges = countChanges;
+
+const printAnnotation = (
+  {
+    aAnnotation,
+    aColor,
+    aIndicator,
+    bAnnotation,
+    bColor,
+    bIndicator,
+    includeChangeCounts,
+    omitAnnotationLines
+  },
+  changeCounts
+) => {
+  if (omitAnnotationLines) {
+    return '';
+  }
+
+  let aRest = '';
+  let bRest = '';
+
+  if (includeChangeCounts) {
+    const aCount = String(changeCounts.a);
+    const bCount = String(changeCounts.b); // Padding right aligns the ends of the annotations.
+
+    const baAnnotationLengthDiff = bAnnotation.length - aAnnotation.length;
+    const aAnnotationPadding = ' '.repeat(Math.max(0, baAnnotationLengthDiff));
+    const bAnnotationPadding = ' '.repeat(Math.max(0, -baAnnotationLengthDiff)); // Padding left aligns the ends of the counts.
+
+    const baCountLengthDiff = bCount.length - aCount.length;
+    const aCountPadding = ' '.repeat(Math.max(0, baCountLengthDiff));
+    const bCountPadding = ' '.repeat(Math.max(0, -baCountLengthDiff));
+    aRest =
+      aAnnotationPadding + '  ' + aIndicator + ' ' + aCountPadding + aCount;
+    bRest =
+      bAnnotationPadding + '  ' + bIndicator + ' ' + bCountPadding + bCount;
+  }
+
+  return (
+    aColor(aIndicator + ' ' + aAnnotation + aRest) +
+    '\n' +
+    bColor(bIndicator + ' ' + bAnnotation + bRest) +
+    '\n\n'
+  );
+};
+
+exports.printAnnotation = printAnnotation;
+
+const printDiffLines = (diffs, options) =>
+  printAnnotation(options, countChanges(diffs)) +
+  (options.expand
+    ? (0, _joinAlignedDiffs.joinAlignedDiffsExpand)(diffs, options)
+    : (0, _joinAlignedDiffs.joinAlignedDiffsNoExpand)(diffs, options)); // In GNU diff format, indexes are one-based instead of zero-based.
+
+exports.printDiffLines = printDiffLines;
+
+const createPatchMark = (aStart, aEnd, bStart, bEnd, {patchColor}) =>
+  patchColor(
+    `@@ -${aStart + 1},${aEnd - aStart} +${bStart + 1},${bEnd - bStart} @@`
+  ); // Compare two strings character-by-character.
+// Format as comparison lines in which changed substrings have inverse colors.
+
+exports.createPatchMark = createPatchMark;
+
+const diffStringsUnified = (a, b, options) => {
+  if (a !== b && a.length !== 0 && b.length !== 0) {
+    const isMultiline = a.includes('\n') || b.includes('\n'); // getAlignedDiffs assumes that a newline was appended to the strings.
+
+    const diffs = diffStringsRaw(
+      isMultiline ? a + '\n' : a,
+      isMultiline ? b + '\n' : b,
+      true // cleanupSemantic
+    );
+
+    if (hasCommonDiff(diffs, isMultiline)) {
+      const optionsNormalized = (0, _normalizeDiffOptions.normalizeDiffOptions)(
+        options
+      );
+      const lines = (0, _getAlignedDiffs.default)(
+        diffs,
+        optionsNormalized.changeColor
+      );
+      return printDiffLines(lines, optionsNormalized);
+    }
+  } // Fall back to line-by-line diff.
+
+  return (0, _diffLines.diffLinesUnified)(
+    a.split('\n'),
+    b.split('\n'),
+    options
+  );
+}; // Compare two strings character-by-character.
+// Optionally clean up small common substrings, also known as chaff.
+
+exports.diffStringsUnified = diffStringsUnified;
+
+const diffStringsRaw = (a, b, cleanup) => {
+  const diffs = (0, _diffStrings.default)(a, b);
+
+  if (cleanup) {
+    (0, _cleanupSemantic.cleanupSemantic)(diffs); // impure function
+  }
+
+  return diffs;
+};
+
+exports.diffStringsRaw = diffStringsRaw;