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resolution.ts
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resolution.ts
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/**
* @license
* Copyright 2019 Palantir Technologies, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import * as fs from "fs";
import * as glob from "glob";
import { filter as createMinimatchFilter, Minimatch } from "minimatch";
import * as path from "path";
import * as ts from "typescript";
import { FatalError } from "../error";
import { Linter } from "../linter";
import { Logger, Options } from "../runner";
import { flatMap, trimSingleQuotes } from "../utils";
export function filterFiles(files: string[], patterns: string[], include: boolean): string[] {
if (patterns.length === 0) {
return include ? [] : files;
}
const matcher = patterns.map(pattern => new Minimatch(pattern, { dot: !include })); // `glob` always enables `dot` for ignore patterns
return files.filter(file => include === matcher.some(pattern => pattern.match(file)));
}
export function findTsconfig(project: string): string | undefined {
try {
const stats = fs.statSync(project); // throws if file does not exist
if (!stats.isDirectory()) {
return project;
}
const projectFile = path.join(project, "tsconfig.json");
fs.accessSync(projectFile); // throws if file does not exist
return projectFile;
} catch (e) {
return undefined;
}
}
export function resolveGlobs(
files: string[],
ignore: string[],
outputAbsolutePaths: boolean | undefined,
logger: Logger,
): string[] {
const results = flatMap(files, file =>
glob.sync(trimSingleQuotes(file), { ignore, nodir: true }),
);
// warn if `files` contains non-existent files, that are not patters and not excluded by any of the exclude patterns
for (const file of filterFiles(files, ignore, false)) {
if (!glob.hasMagic(file) && !results.some(createMinimatchFilter(file))) {
logger.error(`'${file}' does not exist. This will be an error in TSLint 6.\n`); // TODO make this an error in v6.0.0
}
}
const cwd = process.cwd();
return results.map(file =>
outputAbsolutePaths ? path.resolve(cwd, file) : path.relative(cwd, file),
);
}
export function resolveFilesAndProgram(
{ files, project, exclude, outputAbsolutePaths }: Options,
logger: Logger,
): { files: string[]; program?: ts.Program } {
// remove single quotes which break matching on Windows when glob is passed in single quotes
exclude = exclude.map(trimSingleQuotes);
if (project === undefined) {
return { files: resolveGlobs(files, exclude, outputAbsolutePaths, logger) };
}
const projectPath = findTsconfig(project);
if (projectPath === undefined) {
throw new FatalError(`Invalid option for project: ${project}`);
}
exclude = exclude.map(pattern => path.resolve(pattern));
const program = Linter.createProgram(projectPath);
let filesFound: string[];
if (files.length === 0) {
filesFound = filterFiles(Linter.getFileNames(program), exclude, false);
} else {
files = files.map(f => path.resolve(f));
filesFound = filterFiles(program.getSourceFiles().map(f => f.fileName), files, true);
filesFound = filterFiles(filesFound, exclude, false);
// find non-glob files that have no matching file in the project and are not excluded by any exclude pattern
for (const file of filterFiles(files, exclude, false)) {
if (!glob.hasMagic(file) && !filesFound.some(createMinimatchFilter(file))) {
if (fs.existsSync(file)) {
throw new FatalError(`'${file}' is not included in project.`);
}
logger.error(`'${file}' does not exist. This will be an error in TSLint 6.\n`); // TODO make this an error in v6.0.0
}
}
}
return { files: filesFound, program };
}