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• cli.js

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node_modules.apollo-codegen.src.cli.js Maven / Gradle / Ivy

#!/usr/bin/env node

import * as glob from 'glob';
import * as process from 'process';
import * as path from 'path';
import * as yargs from 'yargs';

import { downloadSchema, introspectSchema, printSchema, generate } from '.';
import { ToolError, logError } from './errors'

import 'source-map-support/register'

// Make sure unhandled errors in async code are propagated correctly
process.on('unhandledRejection', (error) => { throw error });

process.on('uncaughtException', handleError);

function handleError(error) {
  logError(error);
  process.exit(1);
}

yargs
  .command(
    ['introspect-schema ', 'download-schema'],
    'Generate an introspection JSON from a local GraphQL file or from a remote GraphQL server',
    {
      output: {
        demand: true,
        describe: 'Output path for GraphQL schema file',
        default: 'schema.json',
        normalize: true,
        coerce: path.resolve,
      },
      header: {
        alias: 'H',
        describe: 'Additional header to send to the server as part of the introspection query request',
        type: 'array',
        coerce: (arg) => {
          let additionalHeaders = {};
          for (const header of arg) {
            const separator = header.indexOf(":");
            const name = header.substring(0, separator).trim();
            const value = header.substring(separator + 1).trim();
            if (!(name && value)) {
              throw new ToolError('Headers should be specified as "Name: Value"');
            }
            additionalHeaders[name] = value;
          }
          return additionalHeaders;
        }
      },
      insecure: {
        alias: 'K',
        describe: 'Allows "insecure" SSL connection to the server',
        type: 'boolean'
      },
      method: {
        demand: false,
        describe: 'The HTTP request method to use for the introspection query request',
        type: 'string',
        default: 'POST',
        choices: ['POST', 'GET', 'post', 'get']
      }
    },
    async argv => {
      const { schema, output, header, insecure, method } = argv;

      const urlRegex = /^https?:\/\//i;
      if (urlRegex.test(schema)) {
        await downloadSchema(schema, output, header, insecure, method);
      } else {
        await introspectSchema(schema, output);
      }
    }
  )
  .command(
    ['print-schema [schema]'],
    'Print the provided schema in the GraphQL schema language format',
    {
      schema: {
        demand: true,
        describe: 'Path to GraphQL introspection query result',
        default: 'schema.json',
        normalize: true,
        coerce: path.resolve,
      },
      output: {
        demand: true,
        describe: 'Output path for GraphQL schema language file',
        default: 'schema.graphql',
        normalize: true,
        coerce: path.resolve,
      }
    },
    async argv => {
      const { schema, output } = argv;
      await printSchema(schema, output);
    }
  )
  .command(
    'generate [input...]',
    'Generate code from a GraphQL schema and query documents',
    {
      schema: {
        demand: false,
        describe: 'Path to GraphQL schema file. (Defaults to using .graphqlconfig or schema.json)',
        normalize: true,
        coerce: path.resolve,
      },
      output: {
        describe: 'Output directory for the generated files',
        normalize: true,
        coerce: path.resolve,
      },
      target: {
        demand: false,
        describe: 'Code generation target language',
        choices: ['swift', 'scala', 'json', 'ts', 'ts-modern', 'typescript', 'typescript-modern', 'flow', 'flow-modern'],
        default: 'swift'
      },
      only: {
        describe: 'Parse all input files, but only output generated code for the specified file [Swift only]',
        normalize: true,
        coerce: path.resolve,
      },
      namespace: {
        demand: false,
        describe: 'Optional namespace for generated types [currently Swift and Scala-only]',
        type: 'string'
      },
      "passthrough-custom-scalars": {
        demand: false,
        describe: "Don't attempt to map custom scalars [temporary option]",
        default: false
      },
      "custom-scalars-prefix": {
        demand: false,
        describe: "Prefix for custom scalars. (Implies that passthrough-custom-scalars is true if set)",
        default: '',
        normalize: true
      },
      "add-typename": {
        demand: false,
        describe: "For non-swift targets, always add the __typename GraphQL introspection type when generating target types",
        default: false
      },
      "use-flow-exact-objects": {
        demand: false,
        describe: "Use Flow exact objects for generated types [flow-modern only]",
        default: false,
        type: 'boolean'
      },
      "use-flow-read-only-types": {
        demand: false,
        describe: "Use Flow read only types for generated types [flow-modern only]",
        default: false,
        type: 'boolean'
      },
      "tag-name": {
        demand: false,
        describe: "Name of the template literal tag used to identify template literals containing GraphQL queries in Javascript/Typescript code",
        default: 'gql'
      },
      "project-name": {
        demand: false,
        describe: "Name of the project to use in a multi-project .graphqlconfig file",
      },
      "operation-ids-path": {
        demand: false,
        describe: "Path to an operation id JSON map file. If specified, also stores the operation ids (hashes) as properties on operation types [currently Swift-only]",
        default: null,
        normalize: true
      },
      "merge-in-fields-from-fragment-spreads": {
        demand: false,
        describe: "Merge fragment fields onto its enclosing type",
        default: true,
        type: 'boolean'
      }
    },
    argv => {
      let { input } = argv;

      // Use glob if the user's shell was unable to expand the pattern
      if (input.length === 1 && glob.hasMagic(input[0])) {
        input = glob.sync(input[0]);
      }

      const inputPaths = input
        .map(input => path.resolve(input))
        // Sort to normalize different glob expansions between different terminals.
        .sort();

      const options = {
        passthroughCustomScalars: argv["passthrough-custom-scalars"] || argv["custom-scalars-prefix"] !== '',
        customScalarsPrefix: argv["custom-scalars-prefix"] || '',
        addTypename: argv["add-typename"],
        namespace: argv.namespace,
        operationIdsPath: argv["operation-ids-path"],
        generateOperationIds: !!argv["operation-ids-path"],
        mergeInFieldsFromFragmentSpreads: argv["merge-in-fields-from-fragment-spreads"],
        useFlowExactObjects: argv['use-flow-exact-objects'],
        useFlowReadOnlyTypes: argv['use-flow-read-only-types'],
      };

      generate(inputPaths, argv.schema, argv.output, argv.only, argv.target, argv.tagName, argv.projectName, options);
    },
  )
  .fail(function(message, error) {
    handleError(error ? error : new ToolError(message));
  })
  .help()
  .version()
  .strict()
  .argv