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Lilith 2024-06-13 00:09:21 +02:00
parent eddf7cecb8
commit aea798d119
Signed by: lilith
GPG key ID: 8712A0F317C37175
16631 changed files with 1480363 additions and 257 deletions
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100
home/ags/node_modules/tsconfig-paths/src/__tests__/config-loader.test.ts generated vendored Normal file
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import {
configLoader,
loadConfig,
ConfigLoaderFailResult,
ConfigLoaderSuccessResult,
} from "../config-loader";
import { join } from "path";
describe("config-loader", (): void => {
it("should use explicitParams when set", () => {
const result = configLoader({
explicitParams: {
baseUrl: "/foo/bar",
paths: {
asd: ["asd"],
},
},
cwd: "/baz",
});
const successResult = result as ConfigLoaderSuccessResult;
// assert.equal(successResult.resultType, "success");
// assert.equal(successResult.absoluteBaseUrl, "/foo/bar");
// assert.equal(successResult.paths["asd"][0], "asd");
expect(successResult.resultType).toBe("success");
expect(successResult.absoluteBaseUrl).toBe("/foo/bar");
expect(successResult.paths["asd"][0]).toBe("asd");
});
it("should use explicitParams when set and add cwd when path is relative", () => {
const result = configLoader({
explicitParams: {
baseUrl: "bar/",
paths: {
asd: ["asd"],
},
},
cwd: "/baz",
});
const successResult = result as ConfigLoaderSuccessResult;
// assert.equal(successResult.resultType, "success");
// assert.equal(successResult.absoluteBaseUrl, join("/baz", "bar/"));
expect(successResult.resultType).toBe("success");
expect(successResult.absoluteBaseUrl).toBe(join("/baz", "bar/"));
});
it("should fallback to tsConfigLoader when explicitParams is not set", () => {
const result = configLoader({
explicitParams: undefined,
cwd: "/baz",
// tslint:disable-next-line:no-any
tsConfigLoader: (_: any) => ({
tsConfigPath: "/baz/tsconfig.json",
baseUrl: "./src",
paths: {},
}),
});
const successResult = result as ConfigLoaderSuccessResult;
// assert.equal(successResult.resultType, "success");
// assert.equal(successResult.absoluteBaseUrl, join("/baz", "src"));
expect(successResult.resultType).toBe("success");
expect(successResult.absoluteBaseUrl).toBe(join("/baz", "src"));
});
it("should show an error message when baseUrl is missing", () => {
const result = configLoader({
explicitParams: undefined,
cwd: "/baz",
// tslint:disable-next-line:no-any
tsConfigLoader: (_: any) => ({
tsConfigPath: "/baz/tsconfig.json",
baseUrl: undefined,
paths: {},
}),
});
const failResult = result as ConfigLoaderFailResult;
// assert.equal(failResult.resultType, "failed");
// assert.isTrue(failResult.message.indexOf("baseUrl") > -1);
expect(failResult.resultType).toBe("failed");
expect(failResult.message.indexOf("baseUrl") > -1).toBeTruthy();
});
it("should presume cwd to be a tsconfig file when loadConfig is called with absolute path to tsconfig.json", () => {
// using tsconfig-named.json to ensure that future changes to fix
// https://github.com/dividab/tsconfig-paths/issues/31
// do not pass this test case just because of a directory walk looking
// for tsconfig.json
const configFile = join(__dirname, "tsconfig-named.json");
const result = loadConfig(configFile);
const successResult = result as ConfigLoaderSuccessResult;
// assert.equal(successResult.resultType, "success");
// assert.equal(successResult.configFileAbsolutePath, configFile);
expect(successResult.resultType).toBe("success");
expect(successResult.configFileAbsolutePath).toBe(configFile);
});
});

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home/ags/node_modules/tsconfig-paths/src/__tests__/data/match-path-data.ts generated vendored Normal file
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import { join, dirname } from "path";
import { removeExtension } from "../../filesystem";
export interface OneTest {
readonly name: string;
readonly only?: boolean;
readonly skip?: boolean;
readonly absoluteBaseUrl: string;
readonly paths: { [key: string]: Array<string> };
readonly mainFields?: string[];
readonly addMatchAll?: boolean;
readonly existingFiles: ReadonlyArray<string>;
readonly requestedModule: string;
readonly extensions: ReadonlyArray<string>;
readonly packageJson?: {};
readonly expectedPath: string | undefined;
}
const defaultExtensionsWhenRunningInTsNode = [
".js",
".json",
".node",
".ts",
".tsx",
];
export const tests: ReadonlyArray<OneTest> = [
{
name: "should locate path that matches with star and exists",
absoluteBaseUrl: "/root/",
paths: {
"lib/*": ["location/*"],
},
existingFiles: [join("/root", "location", "mylib", "index.ts")],
requestedModule: "lib/mylib",
expectedPath: dirname(join("/root", "location", "mylib", "index.ts")),
extensions: defaultExtensionsWhenRunningInTsNode,
},
{
name: "should resolve to correct path when many are specified",
absoluteBaseUrl: "/root/",
paths: {
"lib/*": ["foo1/*", "foo2/*", "location/*", "foo3/*"],
},
existingFiles: [join("/root", "location", "mylib", "index.ts")],
requestedModule: "lib/mylib",
extensions: [".ts"],
expectedPath: dirname(join("/root", "location", "mylib", "index.ts")),
},
{
name:
"should locate path that matches with star and prioritize pattern with longest prefix",
absoluteBaseUrl: "/root/",
paths: {
"*": ["location/*"],
"lib/*": ["location/*"],
},
existingFiles: [
join("/root", "location", "lib", "mylib", "index.ts"),
join("/root", "location", "mylib", "index.ts"),
],
requestedModule: "lib/mylib",
expectedPath: dirname(join("/root", "location", "mylib", "index.ts")),
extensions: defaultExtensionsWhenRunningInTsNode,
},
{
name: "should locate path that matches with star and exists with extension",
absoluteBaseUrl: "/root/",
paths: { "lib/*": ["location/*"] },
existingFiles: [join("/root", "location", "mylib.myext")],
requestedModule: "lib/mylib",
extensions: [".js", ".myext"],
expectedPath: removeExtension(join("/root", "location", "mylib.myext")),
},
{
name: "should resolve request with extension specified",
absoluteBaseUrl: "/root/",
paths: { "lib/*": ["location/*"] },
existingFiles: [join("/root", "location", "test.jpg")],
requestedModule: "lib/test.jpg",
expectedPath: join("/root", "location", "test.jpg"),
extensions: defaultExtensionsWhenRunningInTsNode,
},
{
name: "should locate path that matches without star and exists",
absoluteBaseUrl: "/root/",
paths: {
"lib/foo": ["location/foo"],
},
existingFiles: [join("/root", "location", "foo.ts")],
requestedModule: "lib/foo",
expectedPath: removeExtension(join("/root", "location", "foo.ts")),
extensions: defaultExtensionsWhenRunningInTsNode,
},
{
name: "should resolve to parent folder when filename is in subfolder",
absoluteBaseUrl: "/root/",
paths: { "lib/*": ["location/*"] },
existingFiles: [join("/root", "location", "mylib", "index.ts")],
requestedModule: "lib/mylib",
expectedPath: dirname(join("/root", "location", "mylib", "index.ts")),
extensions: defaultExtensionsWhenRunningInTsNode,
},
{
name: "should resolve from main field in package.json",
absoluteBaseUrl: "/root/",
paths: { "lib/*": ["location/*"] },
existingFiles: [join("/root", "location", "mylib", "kalle.ts")],
packageJson: { main: "./kalle.ts" },
requestedModule: "lib/mylib",
expectedPath: join("/root", "location", "mylib", "kalle.ts"),
extensions: defaultExtensionsWhenRunningInTsNode,
},
{
name: "should resolve from main field in package.json (js)",
absoluteBaseUrl: "/root",
paths: { "lib/*": ["location/*"] },
existingFiles: [join("/root", "location", "mylib.js", "kalle.js")],
packageJson: { main: "./kalle.js" },
requestedModule: "lib/mylib.js",
extensions: [".ts", ".js"],
expectedPath: join("/root", "location", "mylib.js", "kalle.js"),
},
{
name: "should resolve from list of fields by priority in package.json",
absoluteBaseUrl: "/root/",
paths: { "lib/*": ["location/*"] },
mainFields: ["missing", "browser", "main"],
packageJson: { main: "./main.js", browser: "./browser.js" },
existingFiles: [
join("/root", "location", "mylibjs", "main.js"), // mainFilePath
join("/root", "location", "mylibjs", "browser.js"), // browserFilePath
],
extensions: [".ts", ".js"],
requestedModule: "lib/mylibjs",
expectedPath: join("/root", "location", "mylibjs", "browser.js"),
},
{
name: "should ignore field mappings to missing files in package.json",
absoluteBaseUrl: "/root/",
paths: { "lib/*": ["location/*"] },
mainFields: ["browser", "main"],
existingFiles: [join("/root", "location", "mylibjs", "kalle.js")],
requestedModule: "lib/mylibjs",
packageJson: {
main: "./kalle.js",
browser: "./nope.js",
},
extensions: [".ts", ".js"],
expectedPath: join("/root", "location", "mylibjs", "kalle.js"),
},
{
name: "should ignore advanced field mappings in package.json",
absoluteBaseUrl: "/root/",
paths: { "lib/*": ["location/*"] },
existingFiles: [
join("/root", "location", "mylibjs", "kalle.js"),
join("/root", "location", "mylibjs", "browser.js"),
],
requestedModule: "lib/mylibjs",
packageJson: {
main: "./kalle.js",
browser: { mylibjs: "./browser.js", "./kalle.js": "./browser.js" },
},
extensions: [".ts", ".js"],
expectedPath: join("/root", "location", "mylibjs", "kalle.js"),
},
{
name: "should resolve to with the help of baseUrl when not explicitly set",
absoluteBaseUrl: "/root/",
paths: {},
existingFiles: [join("/root", "mylib", "index.ts")],
requestedModule: "mylib",
expectedPath: dirname(join("/root", "mylib", "index.ts")),
extensions: defaultExtensionsWhenRunningInTsNode,
},
{
name: "should not resolve with the help of baseUrl when asked not to",
absoluteBaseUrl: "/root/",
paths: {},
addMatchAll: false,
existingFiles: [join("/root", "mylib", "index.ts")],
requestedModule: "mylib",
expectedPath: undefined,
extensions: defaultExtensionsWhenRunningInTsNode,
},
{
name: "should not locate path that does not match",
absoluteBaseUrl: "/root/",
paths: { "lib/*": ["location/*"] },
existingFiles: [join("root", "location", "mylib")],
requestedModule: "mylib",
expectedPath: undefined,
extensions: defaultExtensionsWhenRunningInTsNode,
},
{
name: "should not resolve typings file (index.d.ts)",
absoluteBaseUrl: "/root/",
paths: {
"lib/*": ["location/*"],
},
existingFiles: [join("/root", "location", "mylib", "index.d.ts")],
requestedModule: "lib/mylib",
expectedPath: undefined,
extensions: defaultExtensionsWhenRunningInTsNode,
},
{
name: "should resolve main file with cjs file extension",
absoluteBaseUrl: "/root/",
paths: {},
existingFiles: [join("/root", "mylib", "index.cjs")],
packageJson: {
main: "./index.cjs",
},
requestedModule: "mylib",
expectedPath: join("/root", "mylib", "index.cjs"),
extensions: defaultExtensionsWhenRunningInTsNode,
},
];

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home/ags/node_modules/tsconfig-paths/src/__tests__/filesystem.test.ts generated vendored Normal file
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import * as Filesystem from "../filesystem";
import * as path from "path";
describe("filesystem", () => {
const fileThatExists = path.join(__dirname, "../../package.json");
const fileThatNotExists = path.join(__dirname, "../../package2.json");
it("should find file that exists, sync", () => {
const result = Filesystem.fileExistsSync(fileThatExists);
// assert.equal(result, true);
expect(result).toBe(true);
});
it("should not find file that not exists, sync", () => {
const result = Filesystem.fileExistsSync(fileThatNotExists);
// assert.equal(result, false);
expect(result).toBe(false);
});
it("should find file that exists, async", (done) => {
Filesystem.fileExistsAsync(fileThatExists, (_err, result) => {
try {
// assert.equal(result, true);
expect(result).toBe(true);
done();
} catch (error) {
done(error);
}
});
});
it("should not find file that not exists, async", (done) => {
Filesystem.fileExistsAsync(fileThatNotExists, (_err, result) => {
try {
// assert.equal(result, false);
expect(result).toBe(false);
done();
} catch (error) {
done(error);
}
});
});
it("should load json, sync", () => {
const result = Filesystem.readJsonFromDiskSync(fileThatExists);
// assert.isOk(result);
expect(result);
// assert.equal(result.main, "lib/index.js");
expect(result.main).toBe("lib/index.js");
});
it("should load json, async", (done) => {
Filesystem.readJsonFromDiskAsync(fileThatExists, (_err, result) => {
try {
// assert.isOk(result); // Asserts that object is truthy.
expect(result).toBeTruthy();
// assert.equal(result.main, "lib/index.js");
expect(result.main).toBe("lib/index.js");
done();
} catch (error) {
done(error);
}
});
});
});

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home/ags/node_modules/tsconfig-paths/src/__tests__/mapping-entry.test.ts generated vendored Normal file
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import { getAbsoluteMappingEntries } from "../mapping-entry";
import { join } from "path";
describe("mapping-entry", () => {
it("should change to absolute paths and sort in longest prefix order", () => {
const result = getAbsoluteMappingEntries(
"/absolute/base/url",
{
"*": ["/foo1", "/foo2"],
"longest/pre/fix/*": ["/foo2/bar"],
"pre/fix/*": ["/foo3"],
},
true
);
// assert.deepEqual(result, [
// {
// pattern: "longest/pre/fix/*",
// paths: [join("/absolute", "base", "url", "foo2", "bar")],
// },
// {
// pattern: "pre/fix/*",
// paths: [join("/absolute", "base", "url", "foo3")],
// },
// {
// pattern: "*",
// paths: [
// join("/absolute", "base", "url", "foo1"),
// join("/absolute", "base", "url", "foo2"),
// ],
// },
// ]);
expect(result).toEqual([
{
pattern: "longest/pre/fix/*",
paths: [join("/absolute", "base", "url", "foo2", "bar")],
},
{
pattern: "pre/fix/*",
paths: [join("/absolute", "base", "url", "foo3")],
},
{
pattern: "*",
paths: [
join("/absolute", "base", "url", "foo1"),
join("/absolute", "base", "url", "foo2"),
],
},
]);
});
it("should should add a match-all pattern when requested", () => {
let result = getAbsoluteMappingEntries("/absolute/base/url", {}, true);
// assert.deepEqual(result, [
// {
// pattern: "*",
// paths: [join("/absolute", "base", "url", "*")],
// },
// ]);
expect(result).toEqual([
{
pattern: "*",
paths: [join("/absolute", "base", "url", "*")],
},
]);
result = getAbsoluteMappingEntries("/absolute/base/url", {}, false);
// assert.deepEqual(result, []);
expect(result).toEqual([]);
});
});

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home/ags/node_modules/tsconfig-paths/src/__tests__/match-path-async.test.ts generated vendored Normal file
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import { createMatchPathAsync } from "../match-path-async";
import * as Tests from "./data/match-path-data";
describe("match-path-async", () => {
Tests.tests.forEach((t) =>
it(t.name, (done) => {
const matchPath = createMatchPathAsync(
t.absoluteBaseUrl,
t.paths,
t.mainFields,
t.addMatchAll
);
matchPath(
t.requestedModule,
(_path, callback) => callback(undefined, t.packageJson),
(path, callback) =>
callback(undefined, t.existingFiles.indexOf(path) !== -1),
t.extensions,
(_err, result) => {
// assert.equal(result, t.expectedPath);
expect(result).toBe(t.expectedPath);
done();
}
);
})
);
});

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home/ags/node_modules/tsconfig-paths/src/__tests__/match-path-sync.test.ts generated vendored Normal file
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import { createMatchPath } from "../match-path-sync";
import * as Tests from "./data/match-path-data";
describe("match-path-sync", () => {
Tests.tests.forEach((t) =>
it(t.name, () => {
const matchPath = createMatchPath(
t.absoluteBaseUrl,
t.paths,
t.mainFields,
t.addMatchAll
);
const result = matchPath(
t.requestedModule,
(_: string) => t.packageJson,
(name: string) => t.existingFiles.indexOf(name) !== -1,
t.extensions
);
// assert.equal(result, t.expectedPath);
expect(result).toBe(t.expectedPath);
})
);
});

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home/ags/node_modules/tsconfig-paths/src/__tests__/try-path.test.ts generated vendored Normal file
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import { getPathsToTry } from "../try-path";
import { join } from "path";
describe("mapping-entry", () => {
const abosolutePathMappings = [
{
pattern: "longest/pre/fix/*",
paths: [join("/absolute", "base", "url", "foo2", "bar")],
},
{ pattern: "pre/fix/*", paths: [join("/absolute", "base", "url", "foo3")] },
{ pattern: "*", paths: [join("/absolute", "base", "url", "foo1")] },
];
const abosolutePathMappingsStarstWithSlash = [
{
pattern: "/opt/*",
paths: [join("/absolute", "src", "aws-layer")],
},
{
pattern: "*",
paths: [join("/absolute", "src")],
},
];
it("should return no paths for relative requested module", () => {
const result = getPathsToTry(
[".ts", "tsx"],
abosolutePathMappings,
"./requested-module"
);
// assert.deepEqual(result, undefined);
expect(result).toBeUndefined();
});
it("should return no paths if no pattern match the requested module", () => {
const result = getPathsToTry(
[".ts", "tsx"],
[
{
pattern: "longest/pre/fix/*",
paths: [join("/absolute", "base", "url", "foo2", "bar")],
},
{
pattern: "pre/fix/*",
paths: [join("/absolute", "base", "url", "foo3")],
},
],
"requested-module"
);
expect(result).toBeUndefined();
});
it("should get all paths that matches requested module", () => {
const result = getPathsToTry(
[".ts", ".tsx"],
abosolutePathMappings,
"longest/pre/fix/requested-module"
);
// assert.deepEqual(result, [
// // "longest/pre/fix/*"
// { type: "file", path: join("/absolute", "base", "url", "foo2", "bar") },
// {
// type: "extension",
// path: join("/absolute", "base", "url", "foo2", "bar.ts"),
// },
// {
// type: "extension",
// path: join("/absolute", "base", "url", "foo2", "bar.tsx"),
// },
// {
// type: "package",
// path: join("/absolute", "base", "url", "foo2", "bar", "package.json"),
// },
// {
// type: "index",
// path: join("/absolute", "base", "url", "foo2", "bar", "index.ts"),
// },
// {
// type: "index",
// path: join("/absolute", "base", "url", "foo2", "bar", "index.tsx"),
// },
// // "*"
// { type: "file", path: join("/absolute", "base", "url", "foo1") },
// { type: "extension", path: join("/absolute", "base", "url", "foo1.ts") },
// { type: "extension", path: join("/absolute", "base", "url", "foo1.tsx") },
// {
// type: "package",
// path: join("/absolute", "base", "url", "foo1", "package.json"),
// },
// {
// type: "index",
// path: join("/absolute", "base", "url", "foo1", "index.ts"),
// },
// {
// type: "index",
// path: join("/absolute", "base", "url", "foo1", "index.tsx"),
// },
// ]);
expect(result).toEqual([
// "longest/pre/fix/*"
{ type: "file", path: join("/absolute", "base", "url", "foo2", "bar") },
{
type: "extension",
path: join("/absolute", "base", "url", "foo2", "bar.ts"),
},
{
type: "extension",
path: join("/absolute", "base", "url", "foo2", "bar.tsx"),
},
{
type: "package",
path: join("/absolute", "base", "url", "foo2", "bar", "package.json"),
},
{
type: "index",
path: join("/absolute", "base", "url", "foo2", "bar", "index.ts"),
},
{
type: "index",
path: join("/absolute", "base", "url", "foo2", "bar", "index.tsx"),
},
// "*"
{ type: "file", path: join("/absolute", "base", "url", "foo1") },
{ type: "extension", path: join("/absolute", "base", "url", "foo1.ts") },
{ type: "extension", path: join("/absolute", "base", "url", "foo1.tsx") },
{
type: "package",
path: join("/absolute", "base", "url", "foo1", "package.json"),
},
{
type: "index",
path: join("/absolute", "base", "url", "foo1", "index.ts"),
},
{
type: "index",
path: join("/absolute", "base", "url", "foo1", "index.tsx"),
},
]);
});
it("should resolve paths starting with a slash", () => {
const result = getPathsToTry(
[".ts"],
abosolutePathMappingsStarstWithSlash,
"/opt/utils"
);
expect(result).toEqual([
// "opt/*"
{
path: join("/absolute", "src", "aws-layer"),
type: "file",
},
{
path: join("/absolute", "src", "aws-layer.ts"),
type: "extension",
},
{
path: join("/absolute", "src", "aws-layer", "package.json"),
type: "package",
},
{
path: join("/absolute", "src", "aws-layer", "index.ts"),
type: "index",
},
// "*"
{
path: join("/absolute", "src"),
type: "file",
},
{
path: join("/absolute", "src.ts"),
type: "extension",
},
{
path: join("/absolute", "src", "package.json"),
type: "package",
},
{
path: join("/absolute", "src", "index.ts"),
type: "index",
},
]);
});
});
// describe("match-star", () => {
// it("should match star in last position", () => {
// const result = matchStar("lib/*", "lib/mylib");
// assert.equal(result, "mylib");
// });
// it("should match star in first position", () => {
// const result = matchStar("*/lib", "mylib/lib");
// assert.equal(result, "mylib");
// });
// });

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home/ags/node_modules/tsconfig-paths/src/__tests__/tsconfig-loader.test.ts generated vendored Normal file
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import {
loadTsconfig,
tsConfigLoader,
walkForTsConfig,
} from "../tsconfig-loader";
import { join } from "path";
describe("tsconfig-loader", () => {
it("should find tsconfig in cwd", () => {
const result = tsConfigLoader({
cwd: "/foo/bar",
getEnv: (_: string) => undefined,
loadSync: (cwd: string) => {
return {
tsConfigPath: `${cwd}/tsconfig.json`,
baseUrl: "./",
paths: {},
};
},
});
// assert.equal(result.tsConfigPath, "/foo/bar/tsconfig.json");
expect(result.tsConfigPath).toBe("/foo/bar/tsconfig.json");
});
it("should return loaderResult.tsConfigPath as undefined when not found", () => {
const result = tsConfigLoader({
cwd: "/foo/bar",
getEnv: (_: string) => undefined,
loadSync: (_: string) => {
return {
tsConfigPath: undefined,
baseUrl: "./",
paths: {},
};
},
});
// assert.isUndefined(result.tsConfigPath);
expect(result.tsConfigPath).toBeUndefined();
});
it("should use TS_NODE_PROJECT env if exists", () => {
const result = tsConfigLoader({
cwd: "/foo/bar",
getEnv: (key: string) =>
key === "TS_NODE_PROJECT" ? "/foo/baz" : undefined,
loadSync: (cwd: string, fileName: string) => {
if (cwd === "/foo/bar" && fileName === "/foo/baz") {
return {
tsConfigPath: "/foo/baz/tsconfig.json",
baseUrl: "./",
paths: {},
};
}
return {
tsConfigPath: undefined,
baseUrl: "./",
paths: {},
};
},
});
// assert.equal(result.tsConfigPath, "/foo/baz/tsconfig.json");
expect(result.tsConfigPath).toBe("/foo/baz/tsconfig.json");
});
it("should use TS_NODE_BASEURL env if exists", () => {
const result = tsConfigLoader({
cwd: "/foo/bar",
getEnv: (key: string) =>
key === "TS_NODE_BASEURL" ? "SOME_BASEURL" : undefined,
loadSync: (_0: string, _1: string, baseUrl: string) => {
return {
tsConfigPath: undefined,
baseUrl,
paths: {},
};
},
});
// assert.equal(result.baseUrl, "SOME_BASEURL");
expect(result.baseUrl).toBe("SOME_BASEURL");
});
it("should not use TS_NODE_BASEURL env if it does not exist", () => {
const result = tsConfigLoader({
cwd: "/foo/bar",
getEnv: (_: string) => {
return undefined;
},
loadSync: (_0: string, _1: string, baseUrl: string) => {
return {
tsConfigPath: undefined,
baseUrl,
paths: {},
};
},
});
// assert.equal(result.baseUrl, undefined);
expect(result.baseUrl).toBeUndefined();
});
});
describe("walkForTsConfig", () => {
it("should find tsconfig in starting directory", () => {
const pathToTsconfig = join("/root", "dir1", "tsconfig.json");
const res = walkForTsConfig(
join("/root", "dir1"),
(path) => path === pathToTsconfig
);
// assert.equal(res, pathToTsconfig);
expect(res).toBe(pathToTsconfig);
});
it("should find tsconfig in parent directory", () => {
const pathToTsconfig = join("/root", "tsconfig.json");
const res = walkForTsConfig(
join("/root", "dir1"),
(path) => path === pathToTsconfig
);
// assert.equal(res, pathToTsconfig);
expect(res).toBe(pathToTsconfig);
});
it("should return undefined when reaching the top", () => {
const res = walkForTsConfig(join("/root", "dir1", "kalle"), () => false);
// assert.equal(res, undefined);
expect(res).toBeUndefined();
});
});
describe("loadConfig", () => {
it("should load a config", () => {
const config = { compilerOptions: { baseUrl: "hej" } };
const res = loadTsconfig(
"/root/dir1/tsconfig.json",
(path) => path === "/root/dir1/tsconfig.json",
(_) => JSON.stringify(config)
);
// assert.deepEqual(res, config);
expect(res).toStrictEqual(config);
});
it("should load a config with comments", () => {
const config = { compilerOptions: { baseUrl: "hej" } };
const res = loadTsconfig(
"/root/dir1/tsconfig.json",
(path) => path === "/root/dir1/tsconfig.json",
(_) => `{
// my comment
"compilerOptions": {
"baseUrl": "hej"
}
}`
);
// assert.deepEqual(res, config);
expect(res).toStrictEqual(config);
});
it("should load a config with trailing commas", () => {
const config = { compilerOptions: { baseUrl: "hej" } };
const res = loadTsconfig(
"/root/dir1/tsconfig.json",
(path) => path === "/root/dir1/tsconfig.json",
(_) => `{
"compilerOptions": {
"baseUrl": "hej",
},
}`
);
// assert.deepEqual(res, config);
expect(res).toStrictEqual(config);
});
it("should throw an error including the file path when encountering invalid JSON5", () => {
expect(() =>
loadTsconfig(
"/root/dir1/tsconfig.json",
(path) => path === "/root/dir1/tsconfig.json",
(_) => `{
"compilerOptions": {
}`
)
).toThrowError(
"/root/dir1/tsconfig.json is malformed JSON5: invalid end of input at 3:12"
);
});
it("should load a config with string extends and overwrite all options", () => {
const firstConfig = {
extends: "../base-config.json",
compilerOptions: { baseUrl: "kalle", paths: { foo: ["bar2"] } },
};
const firstConfigPath = join("/root", "dir1", "tsconfig.json");
const baseConfig = {
compilerOptions: {
baseUrl: "olle",
paths: { foo: ["bar1"] },
strict: true,
},
};
const baseConfigPath = join("/root", "base-config.json");
const res = loadTsconfig(
join("/root", "dir1", "tsconfig.json"),
(path) => path === firstConfigPath || path === baseConfigPath,
(path) => {
if (path === firstConfigPath) {
return JSON.stringify(firstConfig);
}
if (path === baseConfigPath) {
return JSON.stringify(baseConfig);
}
return "";
}
);
// assert.deepEqual(res, {
// extends: "../base-config.json",
// compilerOptions: {
// baseUrl: "kalle",
// paths: { foo: ["bar2"] },
// strict: true,
// },
// });
expect(res).toEqual({
extends: "../base-config.json",
compilerOptions: {
baseUrl: "kalle",
paths: { foo: ["bar2"] },
strict: true,
},
});
});
it("should load a config with string extends from node_modules and overwrite all options", () => {
const firstConfig = {
extends: "my-package/base-config.json",
compilerOptions: { baseUrl: "kalle", paths: { foo: ["bar2"] } },
};
const firstConfigPath = join("/root", "dir1", "tsconfig.json");
const baseConfig = {
compilerOptions: {
baseUrl: "olle",
paths: { foo: ["bar1"] },
strict: true,
},
};
const baseConfigPath = join(
"/root",
"dir1",
"node_modules",
"my-package",
"base-config.json"
);
const res = loadTsconfig(
join("/root", "dir1", "tsconfig.json"),
(path) => path === firstConfigPath || path === baseConfigPath,
(path) => {
if (path === firstConfigPath) {
return JSON.stringify(firstConfig);
}
if (path === baseConfigPath) {
return JSON.stringify(baseConfig);
}
return "";
}
);
// assert.deepEqual(res, {
// extends: "my-package/base-config.json",
// compilerOptions: {
// baseUrl: "kalle",
// paths: { foo: ["bar2"] },
// strict: true,
// },
// });
expect(res).toEqual({
extends: "my-package/base-config.json",
compilerOptions: {
baseUrl: "kalle",
paths: { foo: ["bar2"] },
strict: true,
},
});
});
it("should use baseUrl relative to location of extended tsconfig", () => {
const firstConfig = { compilerOptions: { baseUrl: "." } };
const firstConfigPath = join("/root", "first-config.json");
const secondConfig = { extends: "../first-config.json" };
const secondConfigPath = join("/root", "dir1", "second-config.json");
const thirdConfig = { extends: "../second-config.json" };
const thirdConfigPath = join("/root", "dir1", "dir2", "third-config.json");
const res = loadTsconfig(
join("/root", "dir1", "dir2", "third-config.json"),
(path) =>
path === firstConfigPath ||
path === secondConfigPath ||
path === thirdConfigPath,
(path) => {
if (path === firstConfigPath) {
return JSON.stringify(firstConfig);
}
if (path === secondConfigPath) {
return JSON.stringify(secondConfig);
}
if (path === thirdConfigPath) {
return JSON.stringify(thirdConfig);
}
return "";
}
);
// assert.deepEqual(res, {
// extends: "../second-config.json",
// compilerOptions: { baseUrl: join("..", "..") },
// });
expect(res).toEqual({
extends: "../second-config.json",
compilerOptions: { baseUrl: join("..", "..") },
});
});
it("should load a config with array extends and overwrite all options", () => {
const baseConfig1 = {
compilerOptions: { baseUrl: ".", paths: { foo: ["bar"] } },
};
const baseConfig1Path = join("/root", "base-config-1.json");
const baseConfig2 = { compilerOptions: { baseUrl: "." } };
const baseConfig2Path = join("/root", "dir1", "base-config-2.json");
const baseConfig3 = {
compilerOptions: { baseUrl: ".", paths: { foo: ["bar2"] } },
};
const baseConfig3Path = join("/root", "dir1", "dir2", "base-config-3.json");
const actualConfig = {
extends: [
"./base-config-1.json",
"./dir1/base-config-2.json",
"./dir1/dir2/base-config-3.json",
],
};
const actualConfigPath = join("/root", "tsconfig.json");
const res = loadTsconfig(
join("/root", "tsconfig.json"),
(path) =>
[
baseConfig1Path,
baseConfig2Path,
baseConfig3Path,
actualConfigPath,
].indexOf(path) >= 0,
(path) => {
if (path === baseConfig1Path) {
return JSON.stringify(baseConfig1);
}
if (path === baseConfig2Path) {
return JSON.stringify(baseConfig2);
}
if (path === baseConfig3Path) {
return JSON.stringify(baseConfig3);
}
if (path === actualConfigPath) {
return JSON.stringify(actualConfig);
}
return "";
}
);
expect(res).toEqual({
extends: [
"./base-config-1.json",
"./dir1/base-config-2.json",
"./dir1/dir2/base-config-3.json",
],
compilerOptions: {
baseUrl: join("dir1", "dir2"),
paths: { foo: ["bar2"] },
},
});
});
it("should load a config with array extends without .json extension", () => {
const baseConfig = {
compilerOptions: { baseUrl: ".", paths: { foo: ["bar"] } },
};
const baseConfigPath = join("/root", "base-config-1.json");
const actualConfig = { extends: ["./base-config-1"] };
const actualConfigPath = join("/root", "tsconfig.json");
const res = loadTsconfig(
join("/root", "tsconfig.json"),
(path) => [baseConfigPath, actualConfigPath].indexOf(path) >= 0,
(path) => {
if (path === baseConfigPath) {
return JSON.stringify(baseConfig);
}
if (path === actualConfigPath) {
return JSON.stringify(actualConfig);
}
return "";
}
);
expect(res).toEqual({
extends: ["./base-config-1"],
compilerOptions: {
baseUrl: ".",
paths: { foo: ["bar"] },
},
});
});
});

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{
"extends": "../base-tsconfig.json",
"compilerOptions": {
"baseUrl": ".",
"module": "commonjs",
"target": "es6",
"sourceMap": true,
"outDir": "./js_out"
}
}

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import * as TsConfigLoader2 from "./tsconfig-loader";
import * as path from "path";
import { options } from "./options";
export interface ExplicitParams {
baseUrl: string;
paths: { [key: string]: Array<string> };
mainFields?: Array<string>;
addMatchAll?: boolean;
}
export type TsConfigLoader = (
params: TsConfigLoader2.TsConfigLoaderParams
) => TsConfigLoader2.TsConfigLoaderResult;
export interface ConfigLoaderParams {
cwd: string;
explicitParams?: ExplicitParams;
tsConfigLoader?: TsConfigLoader;
}
export interface ConfigLoaderSuccessResult {
resultType: "success";
configFileAbsolutePath: string;
baseUrl: string;
absoluteBaseUrl: string;
paths: { [key: string]: Array<string> };
mainFields?: Array<string>;
addMatchAll?: boolean;
}
export interface ConfigLoaderFailResult {
resultType: "failed";
message: string;
}
export type ConfigLoaderResult =
| ConfigLoaderSuccessResult
| ConfigLoaderFailResult;
export function loadConfig(cwd: string = options.cwd): ConfigLoaderResult {
return configLoader({ cwd: cwd });
}
export function configLoader({
cwd,
explicitParams,
tsConfigLoader = TsConfigLoader2.tsConfigLoader,
}: ConfigLoaderParams): ConfigLoaderResult {
if (explicitParams) {
// tslint:disable-next-line:no-shadowed-variable
const absoluteBaseUrl = path.isAbsolute(explicitParams.baseUrl)
? explicitParams.baseUrl
: path.join(cwd, explicitParams.baseUrl);
return {
resultType: "success",
configFileAbsolutePath: "",
baseUrl: explicitParams.baseUrl,
absoluteBaseUrl,
paths: explicitParams.paths,
mainFields: explicitParams.mainFields,
addMatchAll: explicitParams.addMatchAll,
};
}
// Load tsconfig and create path matching function
const loadResult = tsConfigLoader({
cwd,
getEnv: (key: string) => process.env[key],
});
if (!loadResult.tsConfigPath) {
return {
resultType: "failed",
message: "Couldn't find tsconfig.json",
};
}
if (!loadResult.baseUrl) {
return {
resultType: "failed",
message: "Missing baseUrl in compilerOptions",
};
}
const tsConfigDir = path.dirname(loadResult.tsConfigPath);
const absoluteBaseUrl = path.join(tsConfigDir, loadResult.baseUrl);
return {
resultType: "success",
configFileAbsolutePath: loadResult.tsConfigPath,
baseUrl: loadResult.baseUrl,
absoluteBaseUrl,
paths: loadResult.paths || {},
};
}

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import * as fs from "fs";
/**
* Typing for the fields of package.json we care about
*/
export interface PackageJson {
[key: string]: string;
}
/**
* A function that json from a file
*/
export interface ReadJsonSync {
// tslint:disable-next-line:no-any
(packageJsonPath: string): any | undefined;
}
export interface FileExistsSync {
(name: string): boolean;
}
export interface FileExistsAsync {
(path: string, callback: (err?: Error, exists?: boolean) => void): void;
}
export interface ReadJsonAsyncCallback {
// tslint:disable-next-line:no-any
(err?: Error, content?: any): void;
}
export interface ReadJsonAsync {
(path: string, callback: ReadJsonAsyncCallback): void;
}
export function fileExistsSync(path: string): boolean {
try {
const stats = fs.statSync(path);
return stats.isFile();
} catch (err) {
// If error, assume file did not exist
return false;
}
}
/**
* Reads package.json from disk
* @param file Path to package.json
*/
// tslint:disable-next-line:no-any
export function readJsonFromDiskSync(packageJsonPath: string): any | undefined {
if (!fs.existsSync(packageJsonPath)) {
return undefined;
}
return require(packageJsonPath);
}
export function readJsonFromDiskAsync(
path: string,
// tslint:disable-next-line:no-any
callback: (err?: Error, content?: any) => void
): void {
fs.readFile(path, "utf8", (err, result) => {
// If error, assume file did not exist
if (err || !result) {
return callback();
}
const json = JSON.parse(result);
return callback(undefined, json);
});
}
export function fileExistsAsync(
path2: string,
callback2: (err?: Error, exists?: boolean) => void
): void {
fs.stat(path2, (err: Error, stats: fs.Stats) => {
if (err) {
// If error assume file does not exist
return callback2(undefined, false);
}
callback2(undefined, stats ? stats.isFile() : false);
});
}
export function removeExtension(path: string): string {
return path.substring(0, path.lastIndexOf(".")) || path;
}

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// register is used from register.js in root dir
export {
createMatchPath,
matchFromAbsolutePaths,
MatchPath,
} from "./match-path-sync";
export {
createMatchPathAsync,
matchFromAbsolutePathsAsync,
MatchPathAsync,
} from "./match-path-async";
export { register } from "./register";
export {
loadConfig,
ConfigLoaderResult,
ConfigLoaderSuccessResult,
ConfigLoaderFailResult,
} from "./config-loader";
export {
ReadJsonSync,
ReadJsonAsync,
FileExistsSync,
FileExistsAsync,
} from "./filesystem";

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import * as path from "path";
export interface MappingEntry {
readonly pattern: string;
readonly paths: ReadonlyArray<string>;
}
export interface Paths {
readonly [key: string]: ReadonlyArray<string>;
}
/**
* Converts an absolute baseUrl and paths to an array of absolute mapping entries.
* The array is sorted by longest prefix.
* Having an array with entries allows us to keep a sorting order rather than
* sort by keys each time we use the mappings.
* @param absoluteBaseUrl
* @param paths
* @param addMatchAll
*/
export function getAbsoluteMappingEntries(
absoluteBaseUrl: string,
paths: Paths,
addMatchAll: boolean
): ReadonlyArray<MappingEntry> {
// Resolve all paths to absolute form once here, and sort them by
// longest prefix once here, this saves time on each request later.
// We need to put them in an array to preserve the sorting order.
const sortedKeys = sortByLongestPrefix(Object.keys(paths));
const absolutePaths: Array<MappingEntry> = [];
for (const key of sortedKeys) {
absolutePaths.push({
pattern: key,
paths: paths[key].map((pathToResolve) =>
path.join(absoluteBaseUrl, pathToResolve)
),
});
}
// If there is no match-all path specified in the paths section of tsconfig, then try to match
// all paths relative to baseUrl, this is how typescript works.
if (!paths["*"] && addMatchAll) {
absolutePaths.push({
pattern: "*",
paths: [`${absoluteBaseUrl.replace(/\/$/, "")}/*`],
});
}
return absolutePaths;
}
/**
* Sort path patterns.
* If a module name can be matched with multiple patterns then pattern with the longest prefix will be picked.
*/
function sortByLongestPrefix(arr: Array<string>): Array<string> {
return arr
.concat()
.sort((a: string, b: string) => getPrefixLength(b) - getPrefixLength(a));
}
function getPrefixLength(pattern: string): number {
const prefixLength = pattern.indexOf("*");
return pattern.substr(0, prefixLength).length;
}

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import * as path from "path";
import * as TryPath from "./try-path";
import * as MappingEntry from "./mapping-entry";
import * as Filesystem from "./filesystem";
/**
* Function that can match a path async
*/
export interface MatchPathAsync {
(
requestedModule: string,
readJson: Filesystem.ReadJsonAsync | undefined,
fileExists: Filesystem.FileExistsAsync | undefined,
extensions: ReadonlyArray<string> | undefined,
callback: MatchPathAsyncCallback
): void;
}
export interface MatchPathAsyncCallback {
(err?: Error, path?: string): void;
}
/**
* See the sync version for docs.
*/
export function createMatchPathAsync(
absoluteBaseUrl: string,
paths: { [key: string]: Array<string> },
mainFields: string[] = ["main"],
addMatchAll: boolean = true
): MatchPathAsync {
const absolutePaths = MappingEntry.getAbsoluteMappingEntries(
absoluteBaseUrl,
paths,
addMatchAll
);
return (
requestedModule: string,
readJson: Filesystem.ReadJsonAsync | undefined,
fileExists: Filesystem.FileExistsAsync | undefined,
extensions: ReadonlyArray<string> | undefined,
callback: MatchPathAsyncCallback
) =>
matchFromAbsolutePathsAsync(
absolutePaths,
requestedModule,
readJson,
fileExists,
extensions,
callback,
mainFields
);
}
/**
* See the sync version for docs.
*/
export function matchFromAbsolutePathsAsync(
absolutePathMappings: ReadonlyArray<MappingEntry.MappingEntry>,
requestedModule: string,
readJson: Filesystem.ReadJsonAsync = Filesystem.readJsonFromDiskAsync,
fileExists: Filesystem.FileExistsAsync = Filesystem.fileExistsAsync,
extensions: ReadonlyArray<string> = Object.keys(require.extensions),
callback: MatchPathAsyncCallback,
mainFields: string[] = ["main"]
): void {
const tryPaths = TryPath.getPathsToTry(
extensions,
absolutePathMappings,
requestedModule
);
if (!tryPaths) {
return callback();
}
findFirstExistingPath(
tryPaths,
readJson,
fileExists,
callback,
0,
mainFields
);
}
function findFirstExistingMainFieldMappedFile(
packageJson: Filesystem.PackageJson,
mainFields: string[],
packageJsonPath: string,
fileExistsAsync: Filesystem.FileExistsAsync,
doneCallback: (err?: Error, filepath?: string) => void,
index: number = 0
): void {
if (index >= mainFields.length) {
return doneCallback(undefined, undefined);
}
const tryNext = () =>
findFirstExistingMainFieldMappedFile(
packageJson,
mainFields,
packageJsonPath,
fileExistsAsync,
doneCallback,
index + 1
);
const mainFieldMapping = packageJson[mainFields[index]];
if (typeof mainFieldMapping !== "string") {
// Skip mappings that are not pointers to replacement files
return tryNext();
}
const mappedFilePath = path.join(
path.dirname(packageJsonPath),
mainFieldMapping
);
fileExistsAsync(mappedFilePath, (err?: Error, exists?: boolean) => {
if (err) {
return doneCallback(err);
}
if (exists) {
return doneCallback(undefined, mappedFilePath);
}
return tryNext();
});
}
// Recursive loop to probe for physical files
function findFirstExistingPath(
tryPaths: ReadonlyArray<TryPath.TryPath>,
readJson: Filesystem.ReadJsonAsync,
fileExists: Filesystem.FileExistsAsync,
doneCallback: MatchPathAsyncCallback,
index: number = 0,
mainFields: string[] = ["main"]
): void {
const tryPath = tryPaths[index];
if (
tryPath.type === "file" ||
tryPath.type === "extension" ||
tryPath.type === "index"
) {
fileExists(tryPath.path, (err: Error, exists: boolean) => {
if (err) {
return doneCallback(err);
}
if (exists) {
return doneCallback(undefined, TryPath.getStrippedPath(tryPath));
}
if (index === tryPaths.length - 1) {
return doneCallback();
}
// Continue with the next path
return findFirstExistingPath(
tryPaths,
readJson,
fileExists,
doneCallback,
index + 1,
mainFields
);
});
} else if (tryPath.type === "package") {
readJson(tryPath.path, (err, packageJson) => {
if (err) {
return doneCallback(err);
}
if (packageJson) {
return findFirstExistingMainFieldMappedFile(
packageJson,
mainFields,
tryPath.path,
fileExists,
(mainFieldErr?: Error, mainFieldMappedFile?: string) => {
if (mainFieldErr) {
return doneCallback(mainFieldErr);
}
if (mainFieldMappedFile) {
return doneCallback(undefined, mainFieldMappedFile);
}
// No field in package json was a valid option. Continue with the next path.
return findFirstExistingPath(
tryPaths,
readJson,
fileExists,
doneCallback,
index + 1,
mainFields
);
}
);
}
// This is async code, we need to return unconditionally, otherwise the code still falls
// through and keeps recursing. While this might work in general, libraries that use neo-async
// like Webpack will actually not allow you to call the same callback twice.
//
// An example of where this caused issues:
// https://github.com/dividab/tsconfig-paths-webpack-plugin/issues/11
//
// Continue with the next path
return findFirstExistingPath(
tryPaths,
readJson,
fileExists,
doneCallback,
index + 1,
mainFields
);
});
} else {
TryPath.exhaustiveTypeException(tryPath.type);
}
}

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import * as path from "path";
import * as Filesystem from "./filesystem";
import * as MappingEntry from "./mapping-entry";
import * as TryPath from "./try-path";
/**
* Function that can match a path
*/
export interface MatchPath {
(
requestedModule: string,
readJson?: Filesystem.ReadJsonSync,
fileExists?: (name: string) => boolean,
extensions?: ReadonlyArray<string>
): string | undefined;
}
/**
* Creates a function that can resolve paths according to tsconfig paths property.
* @param absoluteBaseUrl Absolute version of baseUrl as specified in tsconfig.
* @param paths The paths as specified in tsconfig.
* @param mainFields A list of package.json field names to try when resolving module files.
* @param addMatchAll Add a match-all "*" rule if none is present
* @returns a function that can resolve paths.
*/
export function createMatchPath(
absoluteBaseUrl: string,
paths: { [key: string]: Array<string> },
mainFields: string[] = ["main"],
addMatchAll: boolean = true
): MatchPath {
const absolutePaths = MappingEntry.getAbsoluteMappingEntries(
absoluteBaseUrl,
paths,
addMatchAll
);
return (
requestedModule: string,
readJson?: Filesystem.ReadJsonSync,
fileExists?: Filesystem.FileExistsSync,
extensions?: Array<string>
) =>
matchFromAbsolutePaths(
absolutePaths,
requestedModule,
readJson,
fileExists,
extensions,
mainFields
);
}
/**
* Finds a path from tsconfig that matches a module load request.
* @param absolutePathMappings The paths to try as specified in tsconfig but resolved to absolute form.
* @param requestedModule The required module name.
* @param readJson Function that can read json from a path (useful for testing).
* @param fileExists Function that checks for existence of a file at a path (useful for testing).
* @param extensions File extensions to probe for (useful for testing).
* @param mainFields A list of package.json field names to try when resolving module files.
* @returns the found path, or undefined if no path was found.
*/
export function matchFromAbsolutePaths(
absolutePathMappings: ReadonlyArray<MappingEntry.MappingEntry>,
requestedModule: string,
readJson: Filesystem.ReadJsonSync = Filesystem.readJsonFromDiskSync,
fileExists: Filesystem.FileExistsSync = Filesystem.fileExistsSync,
extensions: Array<string> = Object.keys(require.extensions),
mainFields: string[] = ["main"]
): string | undefined {
const tryPaths = TryPath.getPathsToTry(
extensions,
absolutePathMappings,
requestedModule
);
if (!tryPaths) {
return undefined;
}
return findFirstExistingPath(tryPaths, readJson, fileExists, mainFields);
}
function findFirstExistingMainFieldMappedFile(
packageJson: Filesystem.PackageJson,
mainFields: string[],
packageJsonPath: string,
fileExists: Filesystem.FileExistsSync
): string | undefined {
for (let index = 0; index < mainFields.length; index++) {
const mainFieldName = mainFields[index];
const candidateMapping = packageJson[mainFieldName];
if (candidateMapping && typeof candidateMapping === "string") {
const candidateFilePath = path.join(
path.dirname(packageJsonPath),
candidateMapping
);
if (fileExists(candidateFilePath)) {
return candidateFilePath;
}
}
}
return undefined;
}
function findFirstExistingPath(
tryPaths: ReadonlyArray<TryPath.TryPath>,
readJson: Filesystem.ReadJsonSync = Filesystem.readJsonFromDiskSync,
fileExists: Filesystem.FileExistsSync,
mainFields: string[] = ["main"]
): string | undefined {
for (const tryPath of tryPaths) {
if (
tryPath.type === "file" ||
tryPath.type === "extension" ||
tryPath.type === "index"
) {
if (fileExists(tryPath.path)) {
return TryPath.getStrippedPath(tryPath);
}
} else if (tryPath.type === "package") {
const packageJson: Filesystem.PackageJson = readJson(tryPath.path);
if (packageJson) {
const mainFieldMappedFile = findFirstExistingMainFieldMappedFile(
packageJson,
mainFields,
tryPath.path,
fileExists
);
if (mainFieldMappedFile) {
return mainFieldMappedFile;
}
}
} else {
TryPath.exhaustiveTypeException(tryPath.type);
}
}
return undefined;
}

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import * as minimist from "minimist";
const argv = minimist(process.argv.slice(2), {
string: ["project"],
alias: {
project: ["P"],
},
});
const project = argv && argv.project;
export interface Options {
cwd: string;
}
export const options: Options = {
cwd: project || process.cwd(),
};

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import { createMatchPath } from "./match-path-sync";
import { configLoader, ExplicitParams } from "./config-loader";
import { options } from "./options";
const noOp = (): void => void 0;
function getCoreModules(
builtinModules: string[] | undefined
): { [key: string]: boolean } {
builtinModules = builtinModules || [
"assert",
"buffer",
"child_process",
"cluster",
"crypto",
"dgram",
"dns",
"domain",
"events",
"fs",
"http",
"https",
"net",
"os",
"path",
"punycode",
"querystring",
"readline",
"stream",
"string_decoder",
"tls",
"tty",
"url",
"util",
"v8",
"vm",
"zlib",
];
const coreModules: { [key: string]: boolean } = {};
for (let module of builtinModules) {
coreModules[module] = true;
}
return coreModules;
}
/**
* Installs a custom module load function that can adhere to paths in tsconfig.
* Returns a function to undo paths registration.
*/
export function register(explicitParams: ExplicitParams): () => void {
const configLoaderResult = configLoader({
cwd: options.cwd,
explicitParams,
});
if (configLoaderResult.resultType === "failed") {
console.warn(
`${configLoaderResult.message}. tsconfig-paths will be skipped`
);
return noOp;
}
const matchPath = createMatchPath(
configLoaderResult.absoluteBaseUrl,
configLoaderResult.paths,
configLoaderResult.mainFields,
configLoaderResult.addMatchAll
);
// Patch node's module loading
// tslint:disable-next-line:no-require-imports variable-name
const Module = require("module");
const originalResolveFilename = Module._resolveFilename;
const coreModules = getCoreModules(Module.builtinModules);
// tslint:disable-next-line:no-any
Module._resolveFilename = function (request: string, _parent: any): string {
const isCoreModule = coreModules.hasOwnProperty(request);
if (!isCoreModule) {
const found = matchPath(request);
if (found) {
const modifiedArguments = [found, ...[].slice.call(arguments, 1)]; // Passes all arguments. Even those that is not specified above.
// tslint:disable-next-line:no-invalid-this
return originalResolveFilename.apply(this, modifiedArguments);
}
}
// tslint:disable-next-line:no-invalid-this
return originalResolveFilename.apply(this, arguments);
};
return () => {
// Return node's module loading to original state.
Module._resolveFilename = originalResolveFilename;
};
}

102
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import * as path from "path";
import { MappingEntry } from "./mapping-entry";
import { dirname } from "path";
import { removeExtension } from "./filesystem";
export interface TryPath {
readonly type: "file" | "extension" | "index" | "package";
readonly path: string;
}
/**
* Builds a list of all physical paths to try by:
* 1. Check for file named exactly as request.
* 2. Check for files named as request ending in any of the extensions.
* 3. Check for file specified in package.json's main property.
* 4. Check for files named as request ending in "index" with any of the extensions.
*/
export function getPathsToTry(
extensions: ReadonlyArray<string>,
absolutePathMappings: ReadonlyArray<MappingEntry>,
requestedModule: string
): ReadonlyArray<TryPath> | undefined {
if (!absolutePathMappings || !requestedModule || requestedModule[0] === ".") {
return undefined;
}
const pathsToTry: Array<TryPath> = [];
for (const entry of absolutePathMappings) {
const starMatch =
entry.pattern === requestedModule
? ""
: matchStar(entry.pattern, requestedModule);
if (starMatch !== undefined) {
for (const physicalPathPattern of entry.paths) {
const physicalPath = physicalPathPattern.replace("*", starMatch);
pathsToTry.push({ type: "file", path: physicalPath });
pathsToTry.push(
...extensions.map(
(e) => ({ type: "extension", path: physicalPath + e } as TryPath)
)
);
pathsToTry.push({
type: "package",
path: path.join(physicalPath, "/package.json"),
});
const indexPath = path.join(physicalPath, "/index");
pathsToTry.push(
...extensions.map(
(e) => ({ type: "index", path: indexPath + e } as TryPath)
)
);
}
}
}
return pathsToTry.length === 0 ? undefined : pathsToTry;
}
// Not sure why we don't just return the full found path?
export function getStrippedPath(tryPath: TryPath): string {
return tryPath.type === "index"
? dirname(tryPath.path)
: tryPath.type === "file"
? tryPath.path
: tryPath.type === "extension"
? removeExtension(tryPath.path)
: tryPath.type === "package"
? tryPath.path
: exhaustiveTypeException(tryPath.type);
}
export function exhaustiveTypeException(check: never): never {
throw new Error(`Unknown type ${check}`);
}
/**
* Matches pattern with a single star against search.
* Star must match at least one character to be considered a match.
* @param patttern for example "foo*"
* @param search for example "fooawesomebar"
* @returns the part of search that * matches, or undefined if no match.
*/
function matchStar(pattern: string, search: string): string | undefined {
if (search.length < pattern.length) {
return undefined;
}
if (pattern === "*") {
return search;
}
const star = pattern.indexOf("*");
if (star === -1) {
return undefined;
}
const part1 = pattern.substring(0, star);
const part2 = pattern.substring(star + 1);
if (search.substr(0, star) !== part1) {
return undefined;
}
if (search.substr(search.length - part2.length) !== part2) {
return undefined;
}
return search.substr(star, search.length - part2.length);
}

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import * as path from "path";
import * as fs from "fs";
// tslint:disable:no-require-imports
import JSON5 = require("json5");
import StripBom = require("strip-bom");
// tslint:enable:no-require-imports
/**
* Typing for the parts of tsconfig that we care about
*/
export interface Tsconfig {
extends?: string | string[];
compilerOptions?: {
baseUrl?: string;
paths?: { [key: string]: Array<string> };
strict?: boolean;
};
}
export interface TsConfigLoaderResult {
tsConfigPath: string | undefined;
baseUrl: string | undefined;
paths: { [key: string]: Array<string> } | undefined;
}
export interface TsConfigLoaderParams {
getEnv: (key: string) => string | undefined;
cwd: string;
loadSync?(
cwd: string,
filename?: string,
baseUrl?: string
): TsConfigLoaderResult;
}
export function tsConfigLoader({
getEnv,
cwd,
loadSync = loadSyncDefault,
}: TsConfigLoaderParams): TsConfigLoaderResult {
const TS_NODE_PROJECT = getEnv("TS_NODE_PROJECT");
const TS_NODE_BASEURL = getEnv("TS_NODE_BASEURL");
// tsconfig.loadSync handles if TS_NODE_PROJECT is a file or directory
// and also overrides baseURL if TS_NODE_BASEURL is available.
const loadResult = loadSync(cwd, TS_NODE_PROJECT, TS_NODE_BASEURL);
return loadResult;
}
function loadSyncDefault(
cwd: string,
filename?: string,
baseUrl?: string
): TsConfigLoaderResult {
// Tsconfig.loadSync uses path.resolve. This is why we can use an absolute path as filename
const configPath = resolveConfigPath(cwd, filename);
if (!configPath) {
return {
tsConfigPath: undefined,
baseUrl: undefined,
paths: undefined,
};
}
const config = loadTsconfig(configPath);
return {
tsConfigPath: configPath,
baseUrl:
baseUrl ||
(config && config.compilerOptions && config.compilerOptions.baseUrl),
paths: config && config.compilerOptions && config.compilerOptions.paths,
};
}
function resolveConfigPath(cwd: string, filename?: string): string | undefined {
if (filename) {
const absolutePath = fs.lstatSync(filename).isDirectory()
? path.resolve(filename, "./tsconfig.json")
: path.resolve(cwd, filename);
return absolutePath;
}
if (fs.statSync(cwd).isFile()) {
return path.resolve(cwd);
}
const configAbsolutePath = walkForTsConfig(cwd);
return configAbsolutePath ? path.resolve(configAbsolutePath) : undefined;
}
export function walkForTsConfig(
directory: string,
existsSync: (path: string) => boolean = fs.existsSync
): string | undefined {
const configPath = path.join(directory, "./tsconfig.json");
if (existsSync(configPath)) {
return configPath;
}
const parentDirectory = path.join(directory, "../");
// If we reached the top
if (directory === parentDirectory) {
return undefined;
}
return walkForTsConfig(parentDirectory, existsSync);
}
export function loadTsconfig(
configFilePath: string,
existsSync: (path: string) => boolean = fs.existsSync,
readFileSync: (filename: string) => string = (filename: string) =>
fs.readFileSync(filename, "utf8")
): Tsconfig | undefined {
if (!existsSync(configFilePath)) {
return undefined;
}
const configString = readFileSync(configFilePath);
const cleanedJson = StripBom(configString);
let config: Tsconfig;
try {
config = JSON5.parse(cleanedJson);
} catch (e) {
throw new Error(`${configFilePath} is malformed ${e.message}`);
}
let extendedConfig = config.extends;
if (extendedConfig) {
let base: Tsconfig;
if (Array.isArray(extendedConfig)) {
base = extendedConfig.reduce(
(currBase, extendedConfigElement) =>
mergeTsconfigs(
currBase,
loadTsconfigFromExtends(
configFilePath,
extendedConfigElement,
existsSync,
readFileSync
)
),
{}
);
} else {
base = loadTsconfigFromExtends(
configFilePath,
extendedConfig,
existsSync,
readFileSync
);
}
return mergeTsconfigs(base, config);
}
return config;
}
/**
* Intended to be called only from loadTsconfig.
* Parameters don't have defaults because they should use the same as loadTsconfig.
*/
function loadTsconfigFromExtends(
configFilePath: string,
extendedConfigValue: string,
// eslint-disable-next-line no-shadow
existsSync: (path: string) => boolean,
readFileSync: (filename: string) => string
): Tsconfig {
if (
typeof extendedConfigValue === "string" &&
extendedConfigValue.indexOf(".json") === -1
) {
extendedConfigValue += ".json";
}
const currentDir = path.dirname(configFilePath);
let extendedConfigPath = path.join(currentDir, extendedConfigValue);
if (
extendedConfigValue.indexOf("/") !== -1 &&
extendedConfigValue.indexOf(".") !== -1 &&
!existsSync(extendedConfigPath)
) {
extendedConfigPath = path.join(
currentDir,
"node_modules",
extendedConfigValue
);
}
const config =
loadTsconfig(extendedConfigPath, existsSync, readFileSync) || {};
// baseUrl should be interpreted as relative to extendedConfigPath,
// but we need to update it so it is relative to the original tsconfig being loaded
if (config.compilerOptions?.baseUrl) {
const extendsDir = path.dirname(extendedConfigValue);
config.compilerOptions.baseUrl = path.join(
extendsDir,
config.compilerOptions.baseUrl
);
}
return config;
}
function mergeTsconfigs(
base: Tsconfig | undefined,
config: Tsconfig | undefined
): Tsconfig {
base = base || {};
config = config || {};
return {
...base,
...config,
compilerOptions: {
...base.compilerOptions,
...config.compilerOptions,
},
};
}