内容简介:CLUI is a collection of JavaScript libraries for building command-line interfaces with context-aware autocomplete.
CLUI
CLUI is a collection of JavaScript libraries for building command-line interfaces with context-aware autocomplete.
Packages
@replit/clui-input
@replit/clui-input
implements the logic for mapping text input to suggestions and a potential run
function.
import input from '@replit/clui-input'; const rootCommand = { commands: { open: { commands: { sesame: { run: (args) => { /* do something */ }, }, }, }, }, }; const update = input({ command: rootCommand, onUpdate: (updates) => { /* Update #1: `updates.options` will be * [ * { * "value": "open", * "inputValue": "open", * "searchValue": "o", * "cursorTarget": 4 * } * ] */ /* Update #2: `updates.options` will be * [ * { * "value": "sesame", * "inputValue": "open sesame", * "searchValue": "s", * "cursorTarget": 12 * } * ] */ }, }); /* Update #1 */ update({ value: 'o', index: 1 }); /* Update #2 */ update({ value: 'open s', index: 6 });
When the input matches a command with a run
function, the onUpdate
callback will include a reference to it.
const update = input({ command: rootCommand, onUpdate: (updates) => { // call or store reference to `updates.run` based on user interaction }, }); update({ value: 'open sesame', index: 6 });
@replit/clui-input
a framework agnostic primitive that can be wrapped by more specific framework or application code (like a react hook). If using react you will most likey want to keep the result of onUpdate
in a state object. For managing dropdown selection UX I highly recommend downshift
.
@replit/clui-session
@replit/clui-session
implements the logic for rendering a list of react children. For building a CLI-style interfaces this can be useful for adding and removing lines when the prompt is submitted.
import React from 'react' import { render } from 'react-dom' import Session, { Do } from '@replit/clui-session'; /* `Do` is a helper that exposes the `item` prop * You will most likey render your own component * which will get `item` injected as a prop so * that component can call `item.next` based * on specific application logic */ render( <Session> <Do> {item => <button onClick={item.next}>next 1</button>} </Do> <Do> {item => <button onClick={item.next}>next 2</button>} </Do> <Do> {item => <button onClick={item.next}>next 3</button>} </Do> </Session>, document.getElementById('root'), );
@replit/clui-gql
@replit/clui-gql
is a utility library for building CLUI
commands from GraphQL introspection
data.
Install
npm install @replit/clui-gql
Usage
To create a tree of CLUI commands call toCommand
and then visit
each command to define a run function.
import { toCommand, visit } from '@replit/clui-gql'; import { introspectionFromSchema } from 'graphql'; import schema from './your-graphql-schema'; // on server const introspection = introspectionFromSchema(schema); // on client const introspection = makeNetworkRequestForData(); // Create a command tree from graphql introspection data. This could be done on // the server or the client. const root = toCommand({ // 'query' or 'mutation' operation: 'query', // The name of the graphql type that has the fields that act as top level commands rootTypeName: 'CluiCommands' // the path at which the above type appears in the graph mountPath: ['cli', 'admin'], // GraphQL introspection data introspectionSchema: introspection.__schema, // Configure fields and fragments for the output of the GraphQL operation string output: () => ({ fields: '...Output', fragments: ` fragment Output on YourOutputTypes { ...on SuccessOutput { message } ...on ErrorOutput { error } }`, }), }); // Define some application specific behavior for when a command is `run` visit(root, (command) => { if (command.outputType !== 'YourOutputTypes') { // If command does not match an output type you may want do something different. By omitting the run function the command acts as a namespace for sub-commands. return; } command.run = (options) => { return <OutputView command={command} options={options} /> } }
'parseArgs' is a helper for working with args
import { parse } from 'graphql'; import { parseArgs } from '@replit/clui-gql'; const OutputView = (props) => { // CLIU command generated from graphql const { command } = props; // CLUI args const { args } = props.options; const parsed = parseArgs({ command, args }); // Handle state for submitting command based on parsed args if (parsed.missing.required) { return <HandleMissingArgs />; } if (parsed.missing.optional) { return <PotentiallyShowOptinalInputs />; } if (command.query) { graphQLClient.query(parse(command.query), { variables: parsed.variables }) } else if (command.mutation) { graphQLClient.mutate(parse(command.mutation), { variables: parsed.variables }) } // ...some component to communicate above state }
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