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Copyright (c) Microsoft Corporation. All rights reserved. Licensed under the MIT license.\n// See LICENSE in the project root for license information.\n\nimport type { TSESTree } from '@typescript-eslint/types';\nimport fs from 'fs';\n\nimport * as Guards from './ast-guards';\n\nimport { eslintFolder } from '../_patch-base';\nimport {\n ESLINT_BULK_ENABLE_ENV_VAR_NAME,\n ESLINT_BULK_PRUNE_ENV_VAR_NAME,\n ESLINT_BULK_SUPPRESS_ENV_VAR_NAME\n} from './constants';\nimport {\n getSuppressionsConfigForEslintrcFolderPath,\n serializeSuppression,\n type IBulkSuppressionsConfig,\n type ISuppression,\n writeSuppressionsJsonToFile,\n getAllBulkSuppressionsConfigsByEslintrcFolderPath\n} from './bulk-suppressions-file';\n\nconst ESLINTRC_FILENAMES: string[] = [\n '.eslintrc.js',\n '.eslintrc.cjs'\n // Several other filenames are allowed, but this patch requires that it be loaded via a JS config file,\n // so we only need to check for the JS-based filenames\n];\nconst SUPPRESSION_SYMBOL: unique symbol = Symbol('suppression');\nconst ESLINT_BULK_SUPPRESS_ENV_VAR_VALUE: string | undefined = process.env[ESLINT_BULK_SUPPRESS_ENV_VAR_NAME];\nconst SUPPRESS_ALL_RULES: boolean = ESLINT_BULK_SUPPRESS_ENV_VAR_VALUE === '*';\nconst RULES_TO_SUPPRESS: Set<string> | undefined = ESLINT_BULK_SUPPRESS_ENV_VAR_VALUE\n ? new Set(ESLINT_BULK_SUPPRESS_ENV_VAR_VALUE.split(','))\n : undefined;\n\ninterface IProblem {\n [SUPPRESSION_SYMBOL]?: {\n config: IBulkSuppressionsConfig;\n suppression: ISuppression;\n serializedSuppression: string;\n };\n}\n\nfunction getNodeName(node: TSESTree.Node): string | undefined {\n if (Guards.isClassDeclarationWithName(node)) {\n return node.id.name;\n } else if (Guards.isFunctionDeclarationWithName(node)) {\n return node.id.name;\n } else if (Guards.isClassExpressionWithName(node)) {\n return node.id.name;\n } else if (Guards.isFunctionExpressionWithName(node)) {\n return node.id.name;\n } else if (Guards.isNormalVariableDeclaratorWithAnonymousExpressionAssigned(node)) {\n return node.id.name;\n } 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(scopeIdForASTNode !== undefined) {\n scopeIds.unshift(scopeIdForASTNode);\n }\n }\n\n if (scopeIds.length === 0) {\n return '.';\n } else {\n return '.' + scopeIds.join('.');\n }\n}\n\nconst eslintrcPathByFileOrFolderPath: Map<string, string> = new Map();\n\nfunction findEslintrcFolderPathForNormalizedFileAbsolutePath(normalizedFilePath: string): string {\n const cachedFolderPathForFilePath: string | undefined =\n eslintrcPathByFileOrFolderPath.get(normalizedFilePath);\n if (cachedFolderPathForFilePath) {\n return cachedFolderPathForFilePath;\n }\n const normalizedFileFolderPath: string = normalizedFilePath.substring(\n 0,\n normalizedFilePath.lastIndexOf('/')\n );\n\n const pathsToCache: string[] = [normalizedFilePath];\n let eslintrcFolderPath: string | undefined;\n findEslintrcFileLoop: for (\n let currentFolder: string = normalizedFileFolderPath;\n currentFolder; // 'something'.substring(0, -1) is ''\n currentFolder = currentFolder.substring(0, currentFolder.lastIndexOf('/'))\n ) {\n const cachedEslintrcFolderPath: string | undefined = eslintrcPathByFileOrFolderPath.get(currentFolder);\n if (cachedEslintrcFolderPath) {\n return cachedEslintrcFolderPath;\n }\n\n pathsToCache.push(currentFolder);\n for (const eslintrcFilename of ESLINTRC_FILENAMES) {\n if (fs.existsSync(`${currentFolder}/${eslintrcFilename}`)) {\n eslintrcFolderPath = currentFolder;\n break findEslintrcFileLoop;\n }\n }\n }\n\n if (eslintrcFolderPath) {\n for (const checkedFolder of pathsToCache) {\n eslintrcPathByFileOrFolderPath.set(checkedFolder, eslintrcFolderPath);\n }\n\n return eslintrcFolderPath;\n } else {\n throw new Error(`Cannot locate an ESLint configuration file for ${normalizedFilePath}`);\n }\n}\n\n// One-line insert into the ruleContext report method to prematurely exit if the ESLint problem has been suppressed\nexport function shouldBulkSuppress(params: {\n filename: string;\n currentNode: TSESTree.Node;\n ruleId: string;\n problem: IProblem;\n}): boolean {\n // Use this ENV variable to turn off eslint-bulk-suppressions functionality, default behavior is on\n if (process.env[ESLINT_BULK_ENABLE_ENV_VAR_NAME] === 'false') {\n return false;\n }\n\n const { filename: fileAbsolutePath, currentNode, ruleId: rule, problem } = params;\n const normalizedFileAbsolutePath: string = fileAbsolutePath.replace(/\\\\/g, '/');\n const eslintrcDirectory: string =\n findEslintrcFolderPathForNormalizedFileAbsolutePath(normalizedFileAbsolutePath);\n const fileRelativePath: string = normalizedFileAbsolutePath.substring(eslintrcDirectory.length + 1);\n const scopeId: string = calculateScopeId(currentNode);\n const suppression: ISuppression = { file: fileRelativePath, scopeId, rule };\n\n const config: IBulkSuppressionsConfig = getSuppressionsConfigForEslintrcFolderPath(eslintrcDirectory);\n const serializedSuppression: string = serializeSuppression(suppression);\n const currentNodeIsSuppressed: boolean = config.serializedSuppressions.has(serializedSuppression);\n\n if 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