eslint-plugin-import-sorting/dist/utils/make-newline-fixes.js

ESLint plugin to group and sort imports by module, à la Python isort

import { IMPORT_GROUPS } from "../rules/order.js";
import { getGroupNumber } from "./get-group-number.js";
import { getLinesBetween } from "./get-lines-between.js";
import { getNodeRange } from "./get-node-range.js";
function makeNewlineFixes({
  fixer,
  nodes,
  sortedNodes,
  sourceCode,
  options
}) {
  let fixes = [];
  for (let max = sortedNodes.length, index = 0; index < max; index++) {
    let sortingNode = sortedNodes.at(index);
    let nextSortingNode = sortedNodes.at(index + 1);
    if (options.newlinesBetween === "ignore" || !nextSortingNode) {
      continue;
    }
    let nodeGroupNumber = getGroupNumber(IMPORT_GROUPS, sortingNode);
    let nextNodeGroupNumber = getGroupNumber(IMPORT_GROUPS, nextSortingNode);
    let currentNodeRange = getNodeRange(nodes.at(index).node, sourceCode);
    let nextNodeRangeStart = getNodeRange(nodes.at(index + 1).node, sourceCode).at(0);
    let rangeToReplace = [currentNodeRange.at(1), nextNodeRangeStart];
    let textBetweenNodes = sourceCode.text.slice(currentNodeRange.at(1), nextNodeRangeStart);
    let linesBetweenMembers = getLinesBetween(sourceCode, nodes.at(index), nodes.at(index + 1));
    let rangeReplacement;
    if (options.newlinesBetween === "always" && nodeGroupNumber === nextNodeGroupNumber && linesBetweenMembers !== 0 || options.newlinesBetween === "never" && linesBetweenMembers > 0) {
      rangeReplacement = getStringWithoutInvalidNewlines(textBetweenNodes);
    }
    if (options.newlinesBetween === "always" && nodeGroupNumber !== nextNodeGroupNumber && linesBetweenMembers !== 1) {
      rangeReplacement = addNewlineBeforeFirstNewline(
        linesBetweenMembers > 1 ? getStringWithoutInvalidNewlines(textBetweenNodes) : textBetweenNodes
      );
      let isOnSameLine = linesBetweenMembers === 0 && nodes.at(index).node.loc.end.line === nodes.at(index + 1).node.loc.start.line;
      if (isOnSameLine) {
        rangeReplacement = addNewlineBeforeFirstNewline(rangeReplacement);
      }
    }
    if (rangeReplacement) {
      fixes.push(fixer.replaceTextRange(rangeToReplace, rangeReplacement));
    }
  }
  return fixes;
}
function getStringWithoutInvalidNewlines(value) {
  return value.replaceAll(/\n\s*\n/gu, "\n").replaceAll(/\n+/gu, "\n");
}
function addNewlineBeforeFirstNewline(value) {
  let firstNewlineIndex = value.indexOf("\n");
  if (firstNewlineIndex === -1)
    return `${value}
`;
  return `${value.slice(0, firstNewlineIndex)}
${value.slice(firstNewlineIndex)}`;
}
export {
  makeNewlineFixes
};