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fix(eslint): Prepare eslint for rollup 3 and upgrade eslint to newest…
… version (#1309)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,7 @@ | ||
| import { readFileSync } from 'fs'; | ||
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| import { createConfig } from '../../shared/rollup.config.mjs'; | ||
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| export default createConfig({ | ||
| pkg: JSON.parse(readFileSync(new URL('./package.json', import.meta.url), 'utf8')) | ||
| }); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,81 +1,83 @@ | ||
| import * as path from 'path'; | ||
| import { relative, resolve, sep } from 'path'; | ||
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| import { Plugin } from 'rollup'; | ||
| import { createFilter } from '@rollup/pluginutils'; | ||
| import { CLIEngine } from 'eslint'; | ||
| import { ESLint } from 'eslint'; | ||
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| import { RollupEslintOptions } from '../types'; | ||
| import type { RollupEslintOptions } from '../types'; | ||
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| function normalizePath(id: string) { | ||
| return path.relative(process.cwd(), id).split(path.sep).join('/'); | ||
| return relative(process.cwd(), id).split(sep).join('/'); | ||
| } | ||
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| export default function eslint(options = {} as RollupEslintOptions): Plugin { | ||
| if (typeof options === 'string') { | ||
| const configFile = path.resolve(process.cwd(), options); | ||
| const configFile = resolve(process.cwd(), options); | ||
| // eslint-disable-next-line global-require, import/no-dynamic-require, no-param-reassign | ||
| options = require(configFile); | ||
| // Tell eslint not to look for configuration files. | ||
| // eslint-disable-next-line no-param-reassign | ||
| options.useEslintrc = false; | ||
| } | ||
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| const cli = new CLIEngine(options); | ||
| let formatter: CLIEngine.Formatter; | ||
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| switch (typeof options.formatter) { | ||
| case 'string': | ||
| formatter = cli.getFormatter(options.formatter); | ||
| break; | ||
| case 'function': | ||
| ({ formatter } = options); | ||
| break; | ||
| default: | ||
| formatter = cli.getFormatter('stylish'); | ||
| } | ||
| const { | ||
| include, | ||
| exclude = /node_modules/, | ||
| throwOnWarning = false, | ||
| throwOnError = false, | ||
| formatter = 'stylish', | ||
| ...eslintOptions | ||
| } = options; | ||
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| const filter = createFilter(options.include, options.exclude || /node_modules/); | ||
| const eslintInstance = new ESLint(eslintOptions); | ||
| const filter = createFilter(include, exclude); | ||
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| return { | ||
| name: 'eslint', | ||
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| // eslint-disable-next-line consistent-return | ||
| transform(code, id) { | ||
| async transform(_, id: string) { | ||
| const file = normalizePath(id); | ||
| if (!filter(id) || cli.isPathIgnored(file)) { | ||
| if (!filter(id) || (await eslintInstance.isPathIgnored(file))) { | ||
| return null; | ||
| } | ||
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| const report = cli.executeOnText(code, file); | ||
| const hasWarnings = options.throwOnWarning && report.warningCount !== 0; | ||
| const hasErrors = options.throwOnError && report.errorCount !== 0; | ||
| const results = await eslintInstance.lintFiles(file); | ||
| const [result] = results; | ||
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| if (options.fix && report) { | ||
| CLIEngine.outputFixes(report); | ||
| if (eslintOptions.fix) { | ||
| await ESLint.outputFixes(results); | ||
| } | ||
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| if (report.warningCount === 0 && report.errorCount === 0) { | ||
| if (result.warningCount === 0 && result.errorCount === 0) { | ||
| return null; | ||
| } | ||
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| const result = formatter(report.results); | ||
| const eslintFormatter: ESLint.Formatter = | ||
| typeof formatter === 'string' | ||
| ? await eslintInstance.loadFormatter(formatter) | ||
| : { format: formatter }; | ||
| const output = eslintFormatter.format(results); | ||
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| if (result) { | ||
| if (output) { | ||
| // eslint-disable-next-line no-console | ||
| console.log(result); | ||
| console.log(output); | ||
| } | ||
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| if (hasWarnings && hasErrors) { | ||
| throw Error('Warnings or errors were found'); | ||
| const errorMessages = []; | ||
| if (result.warningCount > 0 && throwOnWarning) { | ||
| errorMessages.push(`${result.warningCount} warning${result.warningCount > 1 ? 's' : ''}`); | ||
| } | ||
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| if (hasWarnings) { | ||
| throw Error('Warnings were found'); | ||
| if (result.errorCount > 0 && throwOnError) { | ||
| errorMessages.push(`${result.errorCount} error${result.errorCount > 1 ? 's' : ''}`); | ||
| } | ||
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| if (hasErrors) { | ||
| throw Error('Errors were found'); | ||
| if (errorMessages.length > 0) { | ||
| throw new Error( | ||
| `Found ${errorMessages.join(' and ')} in ${relative('.', result.filePath)}` | ||
| ); | ||
| } | ||
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| return null; | ||
| } | ||
| }; | ||
| } |
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