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- import {normalizeParameters} from '../methods/parameters.js';
- import {getStartTime} from '../return/duration.js';
- import {SUBPROCESS_OPTIONS, getToStream, getFromStream} from '../arguments/fd-options.js';
- import {isDenoExecPath} from '../arguments/file-url.js';
- // Normalize and validate arguments passed to `source.pipe(destination)`
- export const normalizePipeArguments = ({source, sourcePromise, boundOptions, createNested}, ...pipeArguments) => {
- const startTime = getStartTime();
- const {
- destination,
- destinationStream,
- destinationError,
- from,
- unpipeSignal,
- } = getDestinationStream(boundOptions, createNested, pipeArguments);
- const {sourceStream, sourceError} = getSourceStream(source, from);
- const {options: sourceOptions, fileDescriptors} = SUBPROCESS_OPTIONS.get(source);
- return {
- sourcePromise,
- sourceStream,
- sourceOptions,
- sourceError,
- destination,
- destinationStream,
- destinationError,
- unpipeSignal,
- fileDescriptors,
- startTime,
- };
- };
- const getDestinationStream = (boundOptions, createNested, pipeArguments) => {
- try {
- const {
- destination,
- pipeOptions: {from, to, unpipeSignal} = {},
- } = getDestination(boundOptions, createNested, ...pipeArguments);
- const destinationStream = getToStream(destination, to);
- return {
- destination,
- destinationStream,
- from,
- unpipeSignal,
- };
- } catch (error) {
- return {destinationError: error};
- }
- };
- // Piping subprocesses can use three syntaxes:
- // - source.pipe('command', commandArguments, pipeOptionsOrDestinationOptions)
- // - source.pipe`command commandArgument` or source.pipe(pipeOptionsOrDestinationOptions)`command commandArgument`
- // - source.pipe(execa(...), pipeOptions)
- const getDestination = (boundOptions, createNested, firstArgument, ...pipeArguments) => {
- if (Array.isArray(firstArgument)) {
- const destination = createNested(mapDestinationArguments, boundOptions)(firstArgument, ...pipeArguments);
- return {destination, pipeOptions: boundOptions};
- }
- if (typeof firstArgument === 'string' || firstArgument instanceof URL || isDenoExecPath(firstArgument)) {
- if (Object.keys(boundOptions).length > 0) {
- throw new TypeError('Please use .pipe("file", ..., options) or .pipe(execa("file", ..., options)) instead of .pipe(options)("file", ...).');
- }
- const [rawFile, rawArguments, rawOptions] = normalizeParameters(firstArgument, ...pipeArguments);
- const destination = createNested(mapDestinationArguments)(rawFile, rawArguments, rawOptions);
- return {destination, pipeOptions: rawOptions};
- }
- if (SUBPROCESS_OPTIONS.has(firstArgument)) {
- if (Object.keys(boundOptions).length > 0) {
- throw new TypeError('Please use .pipe(options)`command` or .pipe($(options)`command`) instead of .pipe(options)($`command`).');
- }
- return {destination: firstArgument, pipeOptions: pipeArguments[0]};
- }
- throw new TypeError(`The first argument must be a template string, an options object, or an Execa subprocess: ${firstArgument}`);
- };
- // Force `stdin: 'pipe'` with the destination subprocess
- const mapDestinationArguments = ({options}) => ({options: {...options, stdin: 'pipe', piped: true}});
- const getSourceStream = (source, from) => {
- try {
- const sourceStream = getFromStream(source, from);
- return {sourceStream};
- } catch (error) {
- return {sourceError: error};
- }
- };
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