repl-story

Load history into node repl

Basic Usage

const replHistory = require('repl-story');

const replServer = replHistory('~/.my.wonderful.cli');
// play around in repl
// you can consult history using command .history

Api

replHistory supports differents signatures:

replHistory(repl|replServer, filename); // original signature similar to repl.history
replHistory(filename, [repl|replServer]);
replHistory(options);
replHistory(filename, options);
//  -> REPLServer

Here are the different possible params:

• filename or historyFile: the path toward the history file. filename is mandatory. However you can skip it and provide it via the options argument as the filename property (you can also use the alias historyFile).

• replServer or repl: either the repl module, or a ReplServer. [default the require('repl') builtin library]

• an options object, this give you better control over repl and repl-story configuration. This is a plain old js object that support the following properties

  • filename or historyFile: if not provided as leading argument, you can embed the file configuration into the option object.
  • replServer or repl: either the repl module, or a ReplServer. [default the require('repl') builtin library]
  • create or noCreate: whether history file should be created if missing [default: create=true]
  • record or noRecord: whether new history should be recorded [default: record=true]
  • ignore: an array of values that should not be recorded into history
  • any other options supported by repl.start() if you did not provided a ReplServer instance, such as:
    • prompt: optional prompt to use [default '> ']
    • input: Readable stream to read from [default 'process.stdin]
    • output: Readable stream to write to [default process.stdout]
    • any other option repl.start() supports like eval, writer, completer, useColors; terminal replMode

replHistory() return the REPLServer instance you provided, or otherwise the one it started.

Note: replHistory instrument the repl server so that when it closes the history file is closed properly. If you want for this to be complete, you can listen the end-of-story event on the replServer itself.

'Complex' Example

Here is an example to illustrate how to configure repl-story:

const repl = require('repl');
const replHistory = require('repl-story');

const replServer = replHistory({
    repl,
    filename: '~/.my.cli',
    record: false, // load history but do no record it. (equivalent to 'noRecord: true')
    noCreate: true, // disable creation if missing. (equivalent to 'create: false')
    prompt: ':> ' // options are forwarded to repl.start() if no provided replServer
});

Acknowledgment

This started as the adaptation of repl.history to current node Apis.

And why story? repl-history was already taken 😉