@graphql-mesh/utils
Version:
134 lines (133 loc) • 5.48 kB
JavaScript
Object.defineProperty(exports, "__esModule", { value: true });
exports.readUrl = exports.readFile = exports.loadYaml = exports.readFileOrUrl = exports.isUrl = void 0;
const js_yaml_1 = require("js-yaml");
const cross_helpers_1 = require("@graphql-mesh/cross-helpers");
const fetch_1 = require("@whatwg-node/fetch");
const load_from_module_export_expression_js_1 = require("./load-from-module-export-expression.js");
function isUrl(str) {
return /^https?:\/\//.test(str);
}
exports.isUrl = isUrl;
async function readFileOrUrl(filePathOrUrl, config) {
if (isUrl(filePathOrUrl)) {
config.logger.debug(`Fetching ${filePathOrUrl} via HTTP`);
return readUrl(filePathOrUrl, config);
}
else if (filePathOrUrl.startsWith('{') || filePathOrUrl.startsWith('[')) {
return JSON.parse(filePathOrUrl);
}
else {
config.logger.debug(`Reading ${filePathOrUrl} from the file system`);
return readFile(filePathOrUrl, config);
}
}
exports.readFileOrUrl = readFileOrUrl;
function getSchema(filepath, logger) {
return js_yaml_1.DEFAULT_SCHEMA.extend([
new js_yaml_1.Type('!include', {
kind: 'scalar',
resolve(path) {
return typeof path === 'string';
},
construct(path) {
const newCwd = cross_helpers_1.path.dirname(filepath);
const absoluteFilePath = cross_helpers_1.path.isAbsolute(path)
? path
: cross_helpers_1.path.resolve(newCwd, path);
const content = cross_helpers_1.fs.readFileSync(absoluteFilePath, 'utf8');
return loadYaml(absoluteFilePath, content, logger);
},
}),
new js_yaml_1.Type('!includes', {
kind: 'scalar',
resolve(path) {
return typeof path === 'string';
},
construct(path) {
const newCwd = cross_helpers_1.path.dirname(filepath);
const absoluteDirPath = cross_helpers_1.path.isAbsolute(path)
? path
: cross_helpers_1.path.resolve(newCwd, path);
const files = cross_helpers_1.fs.readdirSync(absoluteDirPath);
return files.map(filePath => {
const absoluteFilePath = cross_helpers_1.path.resolve(absoluteDirPath, filePath);
const fileContent = cross_helpers_1.fs.readFileSync(absoluteFilePath, 'utf8');
return loadYaml(absoluteFilePath, fileContent, logger);
});
},
}),
]);
}
function loadYaml(filepath, content, logger) {
return (0, js_yaml_1.load)(content, {
filename: filepath,
schema: getSchema(filepath, logger),
onWarning(warning) {
logger.warn(`${filepath}: ${warning.message}\n${warning.stack}`);
},
});
}
exports.loadYaml = loadYaml;
async function readFile(fileExpression, { allowUnknownExtensions, cwd, fallbackFormat, importFn, logger }) {
const [filePath] = fileExpression.split('#');
if (/js$/.test(filePath) || /ts$/.test(filePath)) {
return (0, load_from_module_export_expression_js_1.loadFromModuleExportExpression)(fileExpression, {
cwd,
importFn,
defaultExportName: 'default',
});
}
const actualPath = cross_helpers_1.path.isAbsolute(filePath) ? filePath : cross_helpers_1.path.join(cwd, filePath);
const rawResult = await cross_helpers_1.fs.promises.readFile(actualPath, 'utf-8');
if (/json$/.test(actualPath)) {
return JSON.parse(rawResult);
}
if (/yaml$/.test(actualPath) || /yml$/.test(actualPath)) {
return loadYaml(actualPath, rawResult, logger);
}
else if (fallbackFormat) {
switch (fallbackFormat) {
case 'json':
return JSON.parse(rawResult);
case 'yaml':
return loadYaml(actualPath, rawResult, logger);
case 'ts':
case 'js':
return importFn(actualPath);
}
}
else if (!allowUnknownExtensions) {
throw new Error(`Failed to parse JSON/YAML. Ensure file '${filePath}' has ` +
`the correct extension (i.e. '.json', '.yaml', or '.yml).`);
}
return rawResult;
}
exports.readFile = readFile;
async function readUrl(path, config) {
const { allowUnknownExtensions, fallbackFormat } = config || {};
config.headers ||= {};
config.fetch ||= fetch_1.fetch;
const response = await config.fetch(path, config);
const contentType = response.headers?.get('content-type') || '';
const responseText = await response.text();
config?.logger?.debug(`${path} returned `, responseText);
if (/json$/.test(path) ||
contentType.startsWith('application/json') ||
fallbackFormat === 'json') {
return JSON.parse(responseText);
}
else if (/yaml$/.test(path) ||
/yml$/.test(path) ||
contentType.includes('yaml') ||
contentType.includes('yml') ||
fallbackFormat === 'yaml') {
return loadYaml(path, responseText, config?.logger);
}
else if (!allowUnknownExtensions) {
throw new Error(`Failed to parse JSON/YAML. Ensure URL '${path}' has ` +
`the correct extension (i.e. '.json', '.yaml', or '.yml) or mime type in the response headers.`);
}
return responseText;
}
exports.readUrl = readUrl;
;