json-schema-to-typescript
Version:
compile json schema to typescript typings
221 lines (218 loc) • 9.22 kB
JavaScript
;
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __asyncValues = (this && this.__asyncValues) || function (o) {
if (!Symbol.asyncIterator) throw new TypeError("Symbol.asyncIterator is not defined.");
var m = o[Symbol.asyncIterator], i;
return m ? m.call(o) : (o = typeof __values === "function" ? __values(o) : o[Symbol.iterator](), i = {}, verb("next"), verb("throw"), verb("return"), i[Symbol.asyncIterator] = function () { return this; }, i);
function verb(n) { i[n] = o[n] && function (v) { return new Promise(function (resolve, reject) { v = o[n](v), settle(resolve, reject, v.done, v.value); }); }; }
function settle(resolve, reject, d, v) { Promise.resolve(v).then(function(v) { resolve({ value: v, done: d }); }, reject); }
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const minimist_1 = __importDefault(require("minimist"));
const fs_1 = require("fs");
const tinyglobby_1 = require("tinyglobby");
const is_glob_1 = __importDefault(require("is-glob"));
const path_1 = require("path");
const index_1 = require("./index");
const utils_1 = require("./utils");
main((0, minimist_1.default)(process.argv.slice(2), {
alias: {
help: ['h'],
input: ['i'],
output: ['o'],
},
boolean: [
'additionalProperties',
'declareExternallyReferenced',
'enableConstEnums',
'format',
'ignoreMinAndMaxItems',
'strictIndexSignatures',
'unknownAny',
'unreachableDefinitions',
],
default: index_1.DEFAULT_OPTIONS,
string: ['bannerComment', 'cwd'],
}));
function main(argv) {
return __awaiter(this, void 0, void 0, function* () {
if (argv.help) {
printHelp();
process.exit(0);
}
const argIn = argv._[0] || argv.input;
const argOut = argv._[1] || argv.output; // the output can be omitted so this can be undefined
const ISGLOB = (0, is_glob_1.default)(argIn);
const ISDIR = isDir(argIn);
if ((ISGLOB || ISDIR) && argOut && argOut.includes('.d.ts')) {
throw new ReferenceError(`You have specified a single file ${argOut} output for a multi file input ${argIn}. This feature is not yet supported, refer to issue #272 (https://github.com/bcherny/json-schema-to-typescript/issues/272)`);
}
try {
// Process input as either glob, directory, or single file
if (ISGLOB) {
yield processGlob(argIn, argOut, argv);
}
else if (ISDIR) {
yield processDir(argIn, argOut, argv);
}
else {
const result = yield processFile(argIn, argv);
outputResult(result, argOut);
}
}
catch (e) {
(0, utils_1.error)(e);
process.exit(1);
}
});
}
// check if path is an existing directory
function isDir(path) {
return (0, fs_1.existsSync)(path) && (0, fs_1.lstatSync)(path).isDirectory();
}
function processGlob(argIn, argOut, argv) {
return __awaiter(this, void 0, void 0, function* () {
const files = yield (0, tinyglobby_1.glob)(argIn, { expandDirectories: false }); // execute glob pattern match
if (files.length === 0) {
throw ReferenceError(`You passed a glob pattern "${argIn}", but there are no files that match that pattern in ${process.cwd()}`);
}
// we can do this concurrently for perf
const results = yield Promise.all(files.map((file) => __awaiter(this, void 0, void 0, function* () {
return [file, yield processFile(file, argv)];
})));
// careful to do this serially
results.forEach(([file, result]) => {
const outputPath = argOut && `${argOut}/${(0, utils_1.justName)(file)}.d.ts`;
outputResult(result, outputPath);
});
});
}
function processDir(argIn, argOut, argv) {
return __awaiter(this, void 0, void 0, function* () {
const files = getPaths(argIn);
// we can do this concurrently for perf
const results = yield Promise.all(files.map((file) => __awaiter(this, void 0, void 0, function* () {
if (!argOut) {
return [file, yield processFile(file, argv)];
}
else {
const outputPath = (0, utils_1.pathTransform)(argOut, argIn, file);
return [file, yield processFile(file, argv), outputPath];
}
})));
// careful to do this serially
results.forEach(([file, result, outputPath]) => outputResult(result, outputPath ? `${outputPath}/${(0, utils_1.justName)(file)}.d.ts` : undefined));
});
}
function outputResult(result, outputPath) {
if (!outputPath) {
process.stdout.write(result);
}
else {
if (!isDir((0, path_1.dirname)(outputPath))) {
(0, fs_1.mkdirSync)((0, path_1.dirname)(outputPath), { recursive: true });
}
return (0, fs_1.writeFileSync)(outputPath, result);
}
}
function processFile(argIn, argv) {
return __awaiter(this, void 0, void 0, function* () {
const { filename, contents } = yield readInput(argIn);
const schema = (0, utils_1.parseFileAsJSONSchema)(filename, contents);
return (0, index_1.compile)(schema, argIn, argv);
});
}
function getPaths(path, paths = []) {
if ((0, fs_1.existsSync)(path) && (0, fs_1.lstatSync)(path).isDirectory()) {
(0, fs_1.readdirSync)((0, path_1.resolve)(path)).forEach(item => getPaths((0, path_1.join)(path, item), paths));
}
else {
paths.push(path);
}
return paths;
}
function readInput(argIn) {
return __awaiter(this, void 0, void 0, function* () {
if (!argIn) {
return {
filename: null,
contents: yield readStream(process.stdin),
};
}
return {
filename: argIn,
contents: (0, fs_1.readFileSync)((0, path_1.resolve)(process.cwd(), argIn), 'utf-8'),
};
});
}
function readStream(stream) {
return __awaiter(this, void 0, void 0, function* () {
var _a, stream_1, stream_1_1;
var _b, e_1, _c, _d;
const chunks = [];
try {
for (_a = true, stream_1 = __asyncValues(stream); stream_1_1 = yield stream_1.next(), _b = stream_1_1.done, !_b; _a = true) {
_d = stream_1_1.value;
_a = false;
const chunk = _d;
chunks.push(chunk);
}
}
catch (e_1_1) { e_1 = { error: e_1_1 }; }
finally {
try {
if (!_a && !_b && (_c = stream_1.return)) yield _c.call(stream_1);
}
finally { if (e_1) throw e_1.error; }
}
return Buffer.concat(chunks).toString('utf8');
});
}
function printHelp() {
const pkg = require('../../package.json');
process.stdout.write(`
${pkg.name} ${pkg.version}
Usage: json2ts [--input, -i] [IN_FILE] [--output, -o] [OUT_FILE] [OPTIONS]
With no IN_FILE, or when IN_FILE is -, read standard input.
With no OUT_FILE and when IN_FILE is specified, create .d.ts file in the same directory.
With no OUT_FILE nor IN_FILE, write to standard output.
You can use any of the following options by adding them at the end.
Boolean values can be set to false using the 'no-' prefix.
--additionalProperties
Default value for additionalProperties, when it is not explicitly set
--cwd=XXX
Root directory for resolving $ref
--declareExternallyReferenced
Declare external schemas referenced via '$ref'?
--enableConstEnums
Prepend enums with 'const'?
--inferStringEnumKeysFromValues
Create enums from JSON enums instead of union types
--format
Format code? Set this to false to improve performance.
--maxItems
Maximum number of unioned tuples to emit when representing bounded-size
array types, before falling back to emitting unbounded arrays. Increase
this to improve precision of emitted types, decrease it to improve
performance, or set it to -1 to ignore minItems and maxItems.
--style.XXX=YYY
Prettier configuration
--unknownAny
Output unknown type instead of any type
--unreachableDefinitions
Generates code for definitions that aren't referenced by the schema
`);
}
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