@riddance/env
Version:
Too much code slows you down, creates risks, increases maintainability burdens, confuses AI. So let's commit less of it.
95 lines • 16.9 kB
JavaScript
import { ESLint } from 'eslint';
import { readFile, rename, writeFile } from 'node:fs/promises';
import { basename, dirname, extname, join, relative } from 'node:path';
import { ensureUnlinked } from './fs.js';
export function makeCache(path) {
return new ESLint({ cwd: path, globInputPaths: false });
}
export async function lint(reporter, path, files, cache) {
try {
const results = await cache.lintFiles(files);
let ignoredWarnings = 0;
if (reporter) {
for (const result of results) {
for (const msg of result.messages) {
if (ignore(msg)) {
++ignoredWarnings;
continue;
}
reporter.error(msg.message, relative(path, result.filePath), msg.line, msg.column);
}
}
const deprecations = results
.flatMap(r => r.usedDeprecatedRules)
.map(r => r.replacedBy.length === 0
? `${r.ruleId} deprecated`
: `${r.ruleId} deprecated, replaced by ${r.replacedBy.join(',')}`);
if (deprecations.length !== 0) {
for (const message of new Set(deprecations)) {
reporter.error(message);
}
}
}
return !results.some(r => {
if (r.messages.some(ignore)) {
return !r.messages.every(ignore);
}
return r.fatalErrorCount + r.errorCount + r.warningCount;
});
}
catch (e) {
if (e.messageTemplate === 'all-matched-files-ignored') {
return true;
}
throw e;
}
}
function ignore(msg) {
return (msg.ruleId === null &&
msg.message.startsWith('File ignored because of a matching ignore pattern.'));
}
export async function fixLints(path, globPattern) {
const cache = new ESLint({ cwd: path, fix: true });
const results = await cache.lintFiles(globPattern);
const fixables = results.filter(r => r.output);
if (fixables.length === 0) {
return [];
}
await ESLint.outputFixes(results);
const [changed, mapping] = await kebabCaseFiles(path, results.map(r => relative(path, r.filePath)));
return [...changed, ...fixables.map(r => relative(path, r.filePath))].map(f => mapping.reduce((pv, [, camel, kebab]) => pv.replace(camel, kebab), f));
}
async function kebabCaseFiles(path, files) {
const ext = '.ts';
const sourceFiles = files.filter(f => extname(f) === ext);
const renamed = sourceFiles
.map(f => [dirname(f), basename(f, ext)])
.map(([dir, base]) => {
const kebab = base.replaceAll(/[A-Z]+(?![a-z])|[A-Z]/gu, ($, ofs) => (ofs ? '-' : '') + $.toLowerCase());
return kebab === base ? undefined : [dir, base, kebab];
})
.filter(r => !!r);
if (renamed.length === 0) {
return [[], renamed];
}
const changed = await Promise.all(sourceFiles.map(f => updateImports(path, f, renamed)));
await Promise.all([
...renamed.map(([p, camel, kebab]) => rename(join(path, p, camel + ext), join(path, p, kebab + ext))),
...renamed.flatMap(([p, camel]) => ['.d.ts', '.js'].map(e => ensureUnlinked(join(path, p, camel + e)))),
]);
return [changed.filter(c => c !== undefined), renamed];
}
async function updateImports(path, file, renamed) {
const fp = join(path, file);
const text = await readFile(fp, 'utf-8');
let updated = text;
for (const [, camel, kebab] of renamed) {
updated = updated.replaceAll(new RegExp(`import (.+) from '\\.(.*)/${camel}.js'`, 'gu'), (_, i, p) => `import ${i} from '.${p}/${kebab}.js'`);
}
if (updated !== text) {
await writeFile(fp, updated, 'utf-8');
return file;
}
return undefined;
}
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{ ESLint } from 'eslint'\nimport { readFile, rename, writeFile } from 'node:fs/promises'\nimport { basename, dirname, extname, join, relative } from 'node:path'\nimport { ensureUnlinked } from './fs.js'\nimport { Reporter } from './reporter.js'\n\nexport function makeCache(path: string) {\n    return new ESLint({ cwd: path, globInputPaths: false })\n}\n\nexport async function lint(\n    reporter: Reporter | undefined,\n    path: string,\n    files: string[],\n    cache: ESLint,\n) {\n    try {\n        const results = await cache.lintFiles(files)\n        let ignoredWarnings = 0\n        if (reporter) {\n            for (const result of results) {\n                for (const msg of result.messages) {\n                    if (ignore(msg)) {\n                        ++ignoredWarnings\n                        continue\n                    }\n                    reporter.error(\n                        msg.message,\n                        relative(path, result.filePath),\n                        msg.line,\n                        msg.column,\n                    )\n                }\n            }\n            const deprecations = results\n                .flatMap(r => r.usedDeprecatedRules)\n                .map(r =>\n                    r.replacedBy.length === 0\n                        ? `${r.ruleId} deprecated`\n                        : `${r.ruleId} deprecated, replaced by ${r.replacedBy.join(',')}`,\n                )\n            if (deprecations.length !== 0) {\n                for (const message of new Set(deprecations)) {\n                    reporter.error(message)\n                }\n            }\n        }\n        return !results.some(r => {\n            if (r.messages.some(ignore)) {\n                return !r.messages.every(ignore)\n            }\n            return r.fatalErrorCount + r.errorCount + r.warningCount\n        })\n    } catch (e) {\n        if ((e as { messageTemplate?: string }).messageTemplate === 'all-matched-files-ignored') {\n            return true\n        }\n        throw e\n    }\n}\n\nfunction ignore(msg: ESLint.LintResult['messages'][0]) {\n    return (\n        msg.ruleId === null &&\n        msg.message.startsWith('File ignored because of a matching ignore pattern.')\n    )\n}\n\nexport async function fixLints(path: string, globPattern: string) {\n    const cache = new ESLint({ cwd: path, fix: true })\n    const results = await cache.lintFiles(globPattern)\n    const fixables = results.filter(r => r.output)\n    if (fixables.length === 0) {\n        return []\n    }\n    await ESLint.outputFixes(results)\n    const [changed, mapping] = await kebabCaseFiles(\n        path,\n        results.map(r => relative(path, r.filePath)),\n    )\n    return [...changed, ...fixables.map(r => relative(path, r.filePath))].map(f =>\n        mapping.reduce((pv, [, camel, kebab]) => pv.replace(camel, kebab), f),\n    )\n}\n\nasync function kebabCaseFiles(path: string, files: string[]) {\n    const ext = '.ts'\n    const sourceFiles = files.filter(f => extname(f) === ext)\n    const renamed = sourceFiles\n        .map(f => [dirname(f), basename(f, ext)] as const)\n        .map(([dir, base]) => {\n            const kebab = base.replaceAll(\n                /[A-Z]+(?![a-z])|[A-Z]/gu,\n                ($, ofs) => (ofs ? '-' : '') + $.toLowerCase(),\n            )\n            return kebab === base ? undefined : ([dir, base, kebab] as const)\n        })\n        .filter(r => !!r)\n    if (renamed.length === 0) {\n        return [[] as string[], renamed] as const\n    }\n    const changed = await Promise.all(sourceFiles.map(f => updateImports(path, f, renamed)))\n    await Promise.all([\n        ...renamed.map(([p, camel, kebab]) =>\n            rename(join(path, p, camel + ext), join(path, p, kebab + ext)),\n        ),\n        ...renamed.flatMap(([p, camel]) =>\n            ['.d.ts', '.js'].map(e => ensureUnlinked(join(path, p, camel + e))),\n        ),\n    ])\n    return [changed.filter(c => c !== undefined), renamed] as const\n}\n\nasync function updateImports(\n    path: string,\n    file: string,\n    renamed: (readonly [string, string, string])[],\n) {\n    const fp = join(path, file)\n    const text = await readFile(fp, 'utf-8')\n    let updated = text\n    for (const [, camel, kebab] of renamed) {\n        updated = updated.replaceAll(\n            new RegExp(`import (.+) from '\\\\.(.*)/${camel}.js'`, 'gu'),\n            (_, i: string, p: string) => `import ${i} from '.${p}/${kebab}.js'`,\n        )\n    }\n    if (updated !== text) {\n        await writeFile(fp, updated, 'utf-8')\n        return file\n    }\n    return undefined\n}\n"]}