1
0
SomberNight c1dbcab9bb qt: new qrreader using QtMultimedia; drop CalinsQRReader(mac)
This commit ports the work of EchterAgo and cculianu from Electron-Cash,
to implement a new toolchain to scan qr codes.

Previously, on Linux and Win, we have been using zbar to access the camera
and read qrcodes; and on macOS we used CalinsQRReader (an objective-C
project by cculianu).

The new toolchain added here can use QtMultimedia to access the camera,
and then feed that image into zbar. When used this way, zbar needs
fewer dependencies and is easier to compile, in particular it can be
compiled for macOS.

The new toolchain works on all three platforms, with some caveats
(see code comments in related commits) -- so we also keep the end-to-end
zbar toolchain; but at least we can drop CalinsQRReader.

The related changes in Electron-Cash are spread over 50+ commits (several PRs and direct
pushes to master), but see in particular:
https://github.com/Electron-Cash/Electron-Cash/pull/1376

some other interesting links:
b2b737001c
163224cf1f
3b31e0fcb1
eda015908e
https://github.com/Electron-Cash/Electron-Cash/pull/1545
052aa06c23
2021-06-25 16:51:58 +02:00
2015-11-09 22:53:27 +09:00
2020-12-11 15:53:33 +01:00
2016-02-24 10:20:30 +01:00
2021-06-17 14:03:06 +02:00
2019-12-06 21:47:28 +01:00
2020-03-04 20:33:02 +01:00

Electrum - Lightweight Bitcoin client
=====================================

::

  Licence: MIT Licence
  Author: Thomas Voegtlin
  Language: Python (>= 3.6)
  Homepage: https://electrum.org/


.. image:: https://travis-ci.org/spesmilo/electrum.svg?branch=master
    :target: https://travis-ci.org/spesmilo/electrum
    :alt: Build Status
.. image:: https://coveralls.io/repos/github/spesmilo/electrum/badge.svg?branch=master
    :target: https://coveralls.io/github/spesmilo/electrum?branch=master
    :alt: Test coverage statistics
.. image:: https://d322cqt584bo4o.cloudfront.net/electrum/localized.svg
    :target: https://crowdin.com/project/electrum
    :alt: Help translate Electrum online





Getting started
===============

(*If you've come here looking to simply run Electrum,* `you may download it here`_.)

.. _you may download it here: https://electrum.org/#download

Electrum itself is pure Python, and so are most of the required dependencies,
but not everything. The following sections describe how to run from source, but here
is a TL;DR::

    sudo apt-get install libsecp256k1-0
    python3 -m pip install --user .[gui,crypto]


Not pure-python dependencies
----------------------------

If you want to use the Qt interface, install the Qt dependencies::

    sudo apt-get install python3-pyqt5

For elliptic curve operations, `libsecp256k1`_ is a required dependency::

    sudo apt-get install libsecp256k1-0

Alternatively, when running from a cloned repository, a script is provided to build
libsecp256k1 yourself::

    sudo apt-get install automake libtool
    ./contrib/make_libsecp256k1.sh

Due to the need for fast symmetric ciphers, `cryptography`_ is required.
Install from your package manager (or from pip)::

    sudo apt-get install python3-cryptography


If you would like hardware wallet support, see `this`_.

.. _libsecp256k1: https://github.com/bitcoin-core/secp256k1
.. _pycryptodomex: https://github.com/Legrandin/pycryptodome
.. _cryptography: https://github.com/pyca/cryptography
.. _this: https://github.com/spesmilo/electrum-docs/blob/master/hardware-linux.rst

Running from tar.gz
-------------------

If you downloaded the official package (tar.gz), you can run
Electrum from its root directory without installing it on your
system; all the pure python dependencies are included in the 'packages'
directory. To run Electrum from its root directory, just do::

    ./run_electrum

You can also install Electrum on your system, by running this command::

    sudo apt-get install python3-setuptools python3-pip
    python3 -m pip install --user .

This will download and install the Python dependencies used by
Electrum instead of using the 'packages' directory.
It will also place an executable named :code:`electrum` in :code:`~/.local/bin`,
so make sure that is on your :code:`PATH` variable.


Development version (git clone)
-------------------------------

Check out the code from GitHub::

    git clone git://github.com/spesmilo/electrum.git
    cd electrum
    git submodule update --init

Run install (this should install dependencies)::

    python3 -m pip install --user -e .


Create translations (optional)::

    sudo apt-get install python-requests gettext
    ./contrib/pull_locale

Finally, to start Electrum::

    ./run_electrum



Creating Binaries
=================

Linux (tarball)
---------------

See :code:`contrib/build-linux/sdist/README.md`.


Linux (AppImage)
----------------

See :code:`contrib/build-linux/appimage/README.md`.


Mac OS X / macOS
----------------

See :code:`contrib/osx/README.md`.


Windows
-------

See :code:`contrib/build-wine/README.md`.


Android
-------

See :code:`contrib/android/Readme.md`.


Contributing
============

Any help testing the software, reporting or fixing bugs, reviewing pull requests
and recent changes, writing tests, or helping with outstanding issues is very welcome.
Implementing new features, or improving/refactoring the codebase, is of course
also welcome, but to avoid wasted effort, especially for larger changes,
we encourage discussing these on the issue tracker or IRC first.

Besides `GitHub`_, most communication about Electrum development happens on IRC, in the
:code:`#electrum` channel on Libera Chat. The easiest way to participate on IRC is
with the web client, `web.libera.chat`_.


.. _web.libera.chat: https://web.libera.chat/#electrum
.. _GitHub: https://github.com/spesmilo/electrum
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