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The Ledger Live JavaScript ecosystem

About

ledger-live is a monorepository whose purpose is to centralize all the JavaScript code related to the Leger Live applications in one place.

Ledger Live is our platform of apps and services integrated specifically to work with your Nano device. It functions as a secure gateway to the crypto ecosystem. This means accessing a variety of crypto, NFT and DeFi based services directly and seamlessly from your hardware wallet – a better, simpler user experience that bypasses a major security concern known as blind signing.

Installation

In order to interact with any package contained in this repository you will need to install the following:

This is only a minimal setup. You will need to perform additional installation steps depending on the package you want to work on, please refer to its nested readme file.

Then, clone the repository and install the dependencies:

git clone [email protected]:LedgerHQ/ledger-live.git
cd ledger-live
pnpm i
# Alternatively, if you want to bypass the postinstall scripts which can be long to run
# pnpm i --ignore-scripts

Note: multiple postinstall steps will be triggered and fail if the applications prerequisites are not met. You can safely ignore the errors if you do not plan to work on those apps.

Usage

Important: All the commands should be run at the root of the monorepo.

Tools

We use pnpm workspaces and turborepo under the hood to handle local and external dependencies, orchestrate tasks and perform various optimizations like package hoisting or remote caching.

For changelog generation releases and package publishing we rely on the changesets library.

Root scripts

The scripts that are defined inside the root /package.json file will use turborepo under the hood and automatically perform needed tasks before running the action.

# This command will first build all the local dependencies needed in the right order.
# Only then it will attempt to build the `Ledger Live Desktop` app.
pnpm build:lld

Aliases

To run nested scripts which are not covered at the root, you should not change your working directory. Every package has an alias defined (see application or library tables or check out the package.json file) that you can use as a prefix when running the script from the root.

# `pnpm desktop` is one of the shorthands written to to avoid changing the working directory.

# The following command will run the nested `test` script.
# `test` is defined inside the `./apps/ledger-live-desktop/package.json` file.
pnpm desktop test

Note that when using these kind of scripts you will have to make sure that the dependencies are built beforehand.

Scoping

You can scope any pnpm or turborepo based script by using the --filter flag.

This is a very powerful feature that you should look into if you are a frequent contributor.

Please check out the pnpm or turborepo documentation for more details (the syntax is almost similar albeit pnpm being a bit more powerful).

Here are some examples:

# Install all the dependencies needed for the packages under ./libs
pnpm i -F "{libs/**}..."
# Run lint only on packages that have been changed compared to origin/develop
pnpm lint --filter=[origin/develop]
# Test every package that has been changed since the last commit excluding the applications
pnpm run test --continue --filter="!./apps/*" --filter="...[HEAD~1]"
# Run typechecks for the Ledger Live Mobile project
pnpm typecheck --filter="live-mobile"

Documentation

Each project folder has a README.md file which contains basic documentation. It includes background info about the project and how to setup, run and build it.

Please check the wiki for additional documentation.

Structure

The sub-packages are (roughly) split into three categories.

/app - Applications

The applications are user-facing programs which depend on one or more libraries.

Ledger Live Applications

Name Alias Download
Ledger Live Desktop pnpm desktop Website
Ledger Live Mobile pnpm mobile Android / iOS

/libs - Libraries

Libraries are public packages which purpose is to be consumed by other libraries or applications. They are deployed to the official npm repository under the @ledgerhq organization.

Ledger Live Libraries

Name Alias Umbrella Package
@ledgerhq/ledger-live-common pnpm common -----
---- ----- ----- -------
@ledgerhq/cryptoassets pnpm ljs:cryoptoassets ledgerjs npm
@ledgerhq/devices pnpm ljs:devices ledgerjs npm
@ledgerhq/errors pnpm ljs:errors ledgerjs npm
@ledgerhq/hw-app-algorand pnpm ljs:hw-app-algorand ledgerjs npm
@ledgerhq/hw-app-btc pnpm ljs:hw-app-btc ledgerjs npm
@ledgerhq/hw-app-cosmos pnpm ljs:hw-app-cosmos ledgerjs npm
@ledgerhq/hw-app-eth pnpm ljs:hw-app-eth ledgerjs npm
@ledgerhq/hw-app-helium pnpm ljs:hw-app-helium ledgerjs npm
@ledgerhq/hw-app-polkadot pnpm ljs:hw-app-polkadot ledgerjs npm
@ledgerhq/hw-app-solana pnpm ljs:hw-app-solana ledgerjs npm
@ledgerhq/hw-app-str pnpm ljs:hw-app-str ledgerjs npm
@ledgerhq/hw-app-tezos pnpm ljs:hw-app-tezos ledgerjs npm
@ledgerhq/hw-app-trx pnpm ljs:hw-app-trx ledgerjs npm
@ledgerhq/hw-app-xrp pnpm ljs:hw-app-xrp ledgerjs npm
@ledgerhq/hw-transport pnpm ljs:hw-transport ledgerjs npm
@ledgerhq/hw-transport-http pnpm ljs:hw-transport-http ledgerjs npm
@ledgerhq/hw-transport-mocker pnpm ljs:hw-transport-mocker ledgerjs npm
@ledgerhq/hw-transport-node-ble pnpm ljs:hw-transport-node ledgerjs npm
@ledgerhq/hw-transport-node-hid pnpm ljs:hw-transport-node ledgerjs npm
@ledgerhq/hw-transport-node-hid-noevents pnpm ljs:hw-transport-node ledgerjs npm
@ledgerhq/hw-transport-node-hid-singleton pnpm ljs:hw-transport-node ledgerjs npm
@ledgerhq/hw-transport-node-speculos pnpm ljs:hw-transport-node ledgerjs npm
@ledgerhq/hw-transport-node-speculos-http pnpm ljs:hw-transport-node ledgerjs npm
@ledgerhq/hw-transport-web-ble pnpm ljs:hw-transport-web ledgerjs npm
@ledgerhq/hw-transport-webhid pnpm ljs:hw-transport-webhid ledgerjs npm
@ledgerhq/hw-transport-webusb pnpm ljs:hw-transport-webusb ledgerjs npm
@ledgerhq/logs pnpm ljs:logs ledgerjs npm
@ledgerhq/react-native-hid pnpm ljs:react-native-hid ledgerjs npm
@ledgerhq/react-native-hw-transport-ble pnpm ljs:react-native-hw ledgerjs npm
@ledgerhq/types-cryptoassets pnpm ljs:types-cryptoassets ledgerjs npm
@ledgerhq/types-devices pnpm ljs:types-devices ledgerjs npm
@ledgerhq/types-live pnpm ljs:types-live ledgerjs npm
---- ----- ----- -------
@ledgerhq/icons-ui pnpm ui:icons ui npm
@ledgerhq/native-ui pnpm ui:native ui npm
@ledgerhq/react-ui pnpm ui:react ui npm
@ledgerhq/ui-shared pnpm ui:shared ui npm

/tools - Tools

⚠️ Tools are meant to be used internally and are undocumented for the most part.

A tool can be a github action, a shell script or a piece of JavaScript code that is used throughout this repository.

Contributing

Please check the general guidelines for contributing to Ledger Live projects: CONTRIBUTING.md.

Each separate project may also contain specific guidelines inside their own folder.

In the meantime here are some important highlights:

  • Follow the git workflow, prefix your branches and do not create unneeded merge commits.
  • Be mindful when creating Pull Requests, specify the reason of the change clearly and write tests if needed.
  • Ledger Applications are mostly accepting bugfix contributions. For features we may reject them based on the fact that they do not fit our roadmap or our long-term goals.

Nightly Releases

Every night a github action merges the develop branch into the nightly branch.

For more information on the nightly releases, have a look at our wiki.

Ledger Live Desktop

  • Every commit triggers a workflow that will build and attach the application binaries to the run.
  • For Ledger Employees: Nightly releases are built every night under the protected ledger-live-build repository.

Ledger Live Mobile

Libraries

Nightly version of library packages are pushed every night to npm.

To install a nightly library use the @nightly dist-tag.

npm i @ledgerhq/live-common@nightly

License

Please check each project LICENSE file, most of them are under the MIT license.

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Mono-repository containing packages related to Ledger Live and the javascript ecosystem.

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