ts-node/dist/ts-internals.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.getPatternFromSpec = exports.createTsInternals = void 0;
const path_1 = require("path");
const util_1 = require("./util");
/** @internal */
exports.createTsInternals = (0, util_1.cachedLookup)(createTsInternalsUncached);
/**
 * Given a reference to the TS compiler, return some TS internal functions that we
 * could not or did not want to grab off the `ts` object.
 * These have been copy-pasted from TS's source and tweaked as necessary.
 *
 * NOTE: This factory returns *only* functions which need a reference to the TS
 * compiler.  Other functions do not need a reference to the TS compiler so are
 * exported directly from this file.
 */
function createTsInternalsUncached(_ts) {
    const ts = _ts;
    /**
     * Copied from:
     * https://github.com/microsoft/TypeScript/blob/v4.3.2/src/compiler/commandLineParser.ts#L2821-L2846
     */
    function getExtendsConfigPath(extendedConfig, host, basePath, errors, createDiagnostic) {
        extendedConfig = (0, util_1.normalizeSlashes)(extendedConfig);
        if (isRootedDiskPath(extendedConfig) ||
            startsWith(extendedConfig, './') ||
            startsWith(extendedConfig, '../')) {
            let extendedConfigPath = getNormalizedAbsolutePath(extendedConfig, basePath);
            if (!host.fileExists(extendedConfigPath) &&
                !endsWith(extendedConfigPath, ts.Extension.Json)) {
                extendedConfigPath = `${extendedConfigPath}.json`;
                if (!host.fileExists(extendedConfigPath)) {
                    errors.push(createDiagnostic(ts.Diagnostics.File_0_not_found, extendedConfig));
                    return undefined;
                }
            }
            return extendedConfigPath;
        }
        // If the path isn't a rooted or relative path, resolve like a module
        const resolved = ts.nodeModuleNameResolver(extendedConfig, combinePaths(basePath, 'tsconfig.json'), { moduleResolution: ts.ModuleResolutionKind.NodeJs }, host, 
        /*cache*/ undefined, 
        /*projectRefs*/ undefined, 
        /*lookupConfig*/ true);
        if (resolved.resolvedModule) {
            return resolved.resolvedModule.resolvedFileName;
        }
        errors.push(createDiagnostic(ts.Diagnostics.File_0_not_found, extendedConfig));
        return undefined;
    }
    return { getExtendsConfigPath };
}
// These functions have alternative implementation to avoid copying too much from TS
function isRootedDiskPath(path) {
    return (0, path_1.isAbsolute)(path);
}
function combinePaths(path, ...paths) {
    return (0, util_1.normalizeSlashes)((0, path_1.resolve)(path, ...paths.filter((path) => path)));
}
function getNormalizedAbsolutePath(fileName, currentDirectory) {
    return (0, util_1.normalizeSlashes)(currentDirectory != null
        ? (0, path_1.resolve)(currentDirectory, fileName)
        : (0, path_1.resolve)(fileName));
}
function startsWith(str, prefix) {
    return str.lastIndexOf(prefix, 0) === 0;
}
function endsWith(str, suffix) {
    const expectedPos = str.length - suffix.length;
    return expectedPos >= 0 && str.indexOf(suffix, expectedPos) === expectedPos;
}
// Reserved characters, forces escaping of any non-word (or digit), non-whitespace character.
// It may be inefficient (we could just match (/[-[\]{}()*+?.,\\^$|#\s]/g), but this is future
// proof.
const reservedCharacterPattern = /[^\w\s\/]/g;
/**
 * @internal
 * See also: getRegularExpressionForWildcard, which seems to do almost the same thing
 */
function getPatternFromSpec(spec, basePath) {
    const pattern = spec && getSubPatternFromSpec(spec, basePath, excludeMatcher);
    return pattern && `^(${pattern})${'($|/)'}`;
}
exports.getPatternFromSpec = getPatternFromSpec;
function getSubPatternFromSpec(spec, basePath, { singleAsteriskRegexFragment, doubleAsteriskRegexFragment, replaceWildcardCharacter, }) {
    let subpattern = '';
    let hasWrittenComponent = false;
    const components = getNormalizedPathComponents(spec, basePath);
    const lastComponent = last(components);
    // getNormalizedPathComponents includes the separator for the root component.
    // We need to remove to create our regex correctly.
    components[0] = removeTrailingDirectorySeparator(components[0]);
    if (isImplicitGlob(lastComponent)) {
        components.push('**', '*');
    }
    let optionalCount = 0;
    for (let component of components) {
        if (component === '**') {
            subpattern += doubleAsteriskRegexFragment;
        }
        else {
            if (hasWrittenComponent) {
                subpattern += directorySeparator;
            }
            subpattern += component.replace(reservedCharacterPattern, replaceWildcardCharacter);
        }
        hasWrittenComponent = true;
    }
    while (optionalCount > 0) {
        subpattern += ')?';
        optionalCount--;
    }
    return subpattern;
}
const directoriesMatcher = {
    singleAsteriskRegexFragment: '[^/]*',
    /**
     * Regex for the ** wildcard. Matches any num of subdirectories. When used for including
     * files or directories, does not match subdirectories that start with a . character
     */
    doubleAsteriskRegexFragment: `(/[^/.][^/]*)*?`,
    replaceWildcardCharacter: (match) => replaceWildcardCharacter(match, directoriesMatcher.singleAsteriskRegexFragment),
};
const excludeMatcher = {
    singleAsteriskRegexFragment: '[^/]*',
    doubleAsteriskRegexFragment: '(/.+?)?',
    replaceWildcardCharacter: (match) => replaceWildcardCharacter(match, excludeMatcher.singleAsteriskRegexFragment),
};
function getNormalizedPathComponents(path, currentDirectory) {
    return reducePathComponents(getPathComponents(path, currentDirectory));
}
function getPathComponents(path, currentDirectory = '') {
    path = combinePaths(currentDirectory, path);
    return pathComponents(path, getRootLength(path));
}
function reducePathComponents(components) {
    if (!some(components))
        return [];
    const reduced = [components[0]];
    for (let i = 1; i < components.length; i++) {
        const component = components[i];
        if (!component)
            continue;
        if (component === '.')
            continue;
        if (component === '..') {
            if (reduced.length > 1) {
                if (reduced[reduced.length - 1] !== '..') {
                    reduced.pop();
                    continue;
                }
            }
            else if (reduced[0])
                continue;
        }
        reduced.push(component);
    }
    return reduced;
}
function getRootLength(path) {
    const rootLength = getEncodedRootLength(path);
    return rootLength < 0 ? ~rootLength : rootLength;
}
function getEncodedRootLength(path) {
    if (!path)
        return 0;
    const ch0 = path.charCodeAt(0);
    // POSIX or UNC
    if (ch0 === 47 /* CharacterCodes.slash */ || ch0 === 92 /* CharacterCodes.backslash */) {
        if (path.charCodeAt(1) !== ch0)
            return 1; // POSIX: "/" (or non-normalized "\")
        const p1 = path.indexOf(ch0 === 47 /* CharacterCodes.slash */ ? directorySeparator : altDirectorySeparator, 2);
        if (p1 < 0)
            return path.length; // UNC: "//server" or "\\server"
        return p1 + 1; // UNC: "//server/" or "\\server\"
    }
    // DOS
    if (isVolumeCharacter(ch0) && path.charCodeAt(1) === 58 /* CharacterCodes.colon */) {
        const ch2 = path.charCodeAt(2);
        if (ch2 === 47 /* CharacterCodes.slash */ || ch2 === 92 /* CharacterCodes.backslash */)
            return 3; // DOS: "c:/" or "c:\"
        if (path.length === 2)
            return 2; // DOS: "c:" (but not "c:d")
    }
    // URL
    const schemeEnd = path.indexOf(urlSchemeSeparator);
    if (schemeEnd !== -1) {
        const authorityStart = schemeEnd + urlSchemeSeparator.length;
        const authorityEnd = path.indexOf(directorySeparator, authorityStart);
        if (authorityEnd !== -1) {
            // URL: "file:///", "file://server/", "file://server/path"
            // For local "file" URLs, include the leading DOS volume (if present).
            // Per https://www.ietf.org/rfc/rfc1738.txt, a host of "" or "localhost" is a
            // special case interpreted as "the machine from which the URL is being interpreted".
            const scheme = path.slice(0, schemeEnd);
            const authority = path.slice(authorityStart, authorityEnd);
            if (scheme === 'file' &&
                (authority === '' || authority === 'localhost') &&
                isVolumeCharacter(path.charCodeAt(authorityEnd + 1))) {
                const volumeSeparatorEnd = getFileUrlVolumeSeparatorEnd(path, authorityEnd + 2);
                if (volumeSeparatorEnd !== -1) {
                    if (path.charCodeAt(volumeSeparatorEnd) === 47 /* CharacterCodes.slash */) {
                        // URL: "file:///c:/", "file://localhost/c:/", "file:///c%3a/", "file://localhost/c%3a/"
                        return ~(volumeSeparatorEnd + 1);
                    }
                    if (volumeSeparatorEnd === path.length) {
                        // URL: "file:///c:", "file://localhost/c:", "file:///c$3a", "file://localhost/c%3a"
                        // but not "file:///c:d" or "file:///c%3ad"
                        return ~volumeSeparatorEnd;
                    }
                }
            }
            return ~(authorityEnd + 1); // URL: "file://server/", "http://server/"
        }
        return ~path.length; // URL: "file://server", "http://server"
    }
    // relative
    return 0;
}
function ensureTrailingDirectorySeparator(path) {
    if (!hasTrailingDirectorySeparator(path)) {
        return path + directorySeparator;
    }
    return path;
}
function hasTrailingDirectorySeparator(path) {
    return (path.length > 0 && isAnyDirectorySeparator(path.charCodeAt(path.length - 1)));
}
function isAnyDirectorySeparator(charCode) {
    return (charCode === 47 /* CharacterCodes.slash */ || charCode === 92 /* CharacterCodes.backslash */);
}
function removeTrailingDirectorySeparator(path) {
    if (hasTrailingDirectorySeparator(path)) {
        return path.substr(0, path.length - 1);
    }
    return path;
}
const directorySeparator = '/';
const altDirectorySeparator = '\\';
const urlSchemeSeparator = '://';
function isVolumeCharacter(charCode) {
    return ((charCode >= 97 /* CharacterCodes.a */ && charCode <= 122 /* CharacterCodes.z */) ||
        (charCode >= 65 /* CharacterCodes.A */ && charCode <= 90 /* CharacterCodes.Z */));
}
function getFileUrlVolumeSeparatorEnd(url, start) {
    const ch0 = url.charCodeAt(start);
    if (ch0 === 58 /* CharacterCodes.colon */)
        return start + 1;
    if (ch0 === 37 /* CharacterCodes.percent */ &&
        url.charCodeAt(start + 1) === 51 /* CharacterCodes._3 */) {
        const ch2 = url.charCodeAt(start + 2);
        if (ch2 === 97 /* CharacterCodes.a */ || ch2 === 65 /* CharacterCodes.A */)
            return start + 3;
    }
    return -1;
}
function some(array, predicate) {
    if (array) {
        if (predicate) {
            for (const v of array) {
                if (predicate(v)) {
                    return true;
                }
            }
        }
        else {
            return array.length > 0;
        }
    }
    return false;
}
function pathComponents(path, rootLength) {
    const root = path.substring(0, rootLength);
    const rest = path.substring(rootLength).split(directorySeparator);
    if (rest.length && !lastOrUndefined(rest))
        rest.pop();
    return [root, ...rest];
}
function lastOrUndefined(array) {
    return array.length === 0 ? undefined : array[array.length - 1];
}
function last(array) {
    // Debug.assert(array.length !== 0);
    return array[array.length - 1];
}
function replaceWildcardCharacter(match, singleAsteriskRegexFragment) {
    return match === '*'
        ? singleAsteriskRegexFragment
        : match === '?'
            ? '[^/]'
            : '\\' + match;
}
/**
 * An "includes" path "foo" is implicitly a glob "foo/** /*" (without the space) if its last component has no extension,
 * and does not contain any glob characters itself.
 */
function isImplicitGlob(lastPathComponent) {
    return !/[.*?]/.test(lastPathComponent);
}
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