@graphql-eslint/eslint-plugin/esm/rules/unique-fragment-name.js

GraphQL plugin for ESLint

import { relative } from 'path';
import { Kind } from 'graphql';
import { normalizePath, requireSiblingsOperations, VIRTUAL_DOCUMENT_REGEX, CWD } from '../utils.js';
const RULE_ID = 'unique-fragment-name';
export const checkNode = (context, node, ruleId) => {
    const documentName = node.name.value;
    const siblings = requireSiblingsOperations(ruleId, context);
    const siblingDocuments = node.kind === Kind.FRAGMENT_DEFINITION
        ? siblings.getFragment(documentName)
        : siblings.getOperation(documentName);
    const filepath = context.getFilename();
    const conflictingDocuments = siblingDocuments.filter(f => {
        var _a;
        const isSameName = ((_a = f.document.name) === null || _a === void 0 ? void 0 : _a.value) === documentName;
        const isSamePath = normalizePath(f.filePath) === normalizePath(filepath);
        return isSameName && !isSamePath;
    });
    if (conflictingDocuments.length > 0) {
        context.report({
            messageId: ruleId,
            data: {
                documentName,
                summary: conflictingDocuments
                    .map(f => `\t${relative(CWD, f.filePath.replace(VIRTUAL_DOCUMENT_REGEX, ''))}`)
                    .join('\n'),
            },
            // @ts-expect-error name will exist
            node: node.name,
        });
    }
};
export const rule = {
    meta: {
        type: 'suggestion',
        docs: {
            category: 'Operations',
            description: 'Enforce unique fragment names across your project.',
            url: `https://github.com/B2o5T/graphql-eslint/blob/master/docs/rules/${RULE_ID}.md`,
            requiresSiblings: true,
            examples: [
                {
                    title: 'Incorrect',
                    code: /* GraphQL */ `
            # user.fragment.graphql
            fragment UserFields on User {
              id
              name
              fullName
            }

            # user-fields.graphql
            fragment UserFields on User {
              id
            }
          `,
                },
                {
                    title: 'Correct',
                    code: /* GraphQL */ `
            # user.fragment.graphql
            fragment AllUserFields on User {
              id
              name
              fullName
            }

            # user-fields.graphql
            fragment UserFields on User {
              id
            }
          `,
                },
            ],
        },
        messages: {
            [RULE_ID]: 'Fragment named "{{ documentName }}" already defined in:\n{{ summary }}',
        },
        schema: [],
    },
    create(context) {
        return {
            FragmentDefinition(node) {
                checkNode(context, node, RULE_ID);
            },
        };
    },
};