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#+TITLE:mu
[[https://github.com/djcb/mu/blob/master/COPYING][https://img.shields.io/github/license/djcb/mu?logo=gnu&.svg]]
[[https://en.cppreference.com][https://img.shields.io/badge/Made%20with-C/CPP-1f425f?logo=c&.svg]]
[[https://img.shields.io/github/v/release/djcb/mu][https://img.shields.io/github/v/release/djcb/mu.svg]]
[[https://github.com/djcb/mu/graphs/contributors][https://img.shields.io/github/contributors/djcb/mu.svg]]
[[https://github.com/djcb/mu/issues][https://img.shields.io/github/issues/djcb/mu.svg]]
[[https://github.com/djcb/mu/issues?q=is%3Aissue+is%3Aopen+label%3Arfe][https://img.shields.io/github/issues/djcb/mu/rfe?color=008b8b.svg]]
[[https://github.com/djcb/mu/pull/new][https://img.shields.io/badge/PRs-welcome-brightgreen.svg]]\\
[[https://www.gnu.org/software/emacs/][https://img.shields.io/badge/Emacs-26.3-922793?logo=gnu-emacs&logoColor=b39ddb&.svg]]
[[https://www.djcbsoftware.nl/code/mu/mu4e/Installation.html#Dependencies-for-Debian_002fUbuntu][https://img.shields.io/badge/Platform-Linux-2e8b57?logo=linux&.svg]]
[[https://www.djcbsoftware.nl/code/mu/mu4e/Installation.html#Building-from-a-release-tarball-1][https://img.shields.io/badge/Platform-FreeBSD-8b3a3a?logo=freebsd&logoColor=c32136&.svg]]
[[https://formulae.brew.sh/formula/mu#default][https://img.shields.io/badge/Platform-macOS-101010?logo=apple&logoColor=ffffff&.svg]]
Welcome to ~mu~!
Latest development news: [[NEWS.org]].
With the enormous amounts of e-mail many people gather and the importance of
e-mail message in our work-flows, it's essential to quickly deal with all that
mail - in particular, to instantly find that one important e-mail you need right
now, and quickly file away message for later use.
~mu~ is a set of command-line tools for dealing with e-mail messages stored in the
Maildir-format. ~mu~'s goal is to help you to quickly find the messages you need,
view them, extract attachments, create new maildirs, and so on.
After indexing your messages into a [[http://www.xapian.org][Xapian]]-database, you can search them through
a query language. You can use various message fields or words in the body text
to find the right messages.
Built on top of ~mu~ are some extensions (included in this package):
- ~mu4e~: a full-featured e-mail client that runs inside emacs
- ~mu-scm~: bindings for the Guile/Scheme programming language (version 3.0 and
later)
~mu~ is written in C++; ~mu4e~ is written in ~elisp~ and ~mu-scm~ is written in a mix of
C++ and Scheme.
~mu~ is available in many Linux distributions (e.g. Debian/Ubuntu and Fedora)
under the name ~maildir-utils~; apparently because they don't like short names.
All of the code is distributed under the terms of the [[https://www.gnu.org/licenses/gpl-3.0.en.html][GNU General Public License
version 3]] (or higher).
* Versions
*mu* attempts to balance development speed and stability. For this, every few
months there is a stable version (e.g. ~1.12.12~); development then continues in
in ~master~, with ~-pre<n>~ (e.g. ~1.12.14-pre3~): ~-pre~-suffixed versions refer to the
current _development_ code, until it is released (and then looses its ~-pre~ suffix,
i.e., becomes the ~1.12.14~ release).
So if you want stability, grab the [[https://github.com/djcb/mu/releases/][release]]; if you are more
adventurous/impatient, git ~master~ is there as well.
* Installation
Note: building from source is an /advanced/ subject, especially if something goes
wrong. The below simple examples are a start, but all tools involved have many
options; there are differences between systems, versions etc. So if this is all
a bit daunting we recommend to wait for someone else to build it for you, such
as a Linux distribution. Many have packages available.
** Requirements
To be able to build ~mu~, ensure you have:
- a C++17 compiler (~gcc~ and ~clang~ are known to work)
- development packages for /Xapian/ and /GMime/ and /GLib/ (see ~meson.build~ for the
versions)
- basic tools such as ~make~, ~sed~, ~grep~
- ~meson~
For ~mu4e~, you also need ~emacs~.
Note, support for Windows is very much _experimental_, that is, it works for some
people, but we can't really support it due to lack of the specific expertise.
Help is welcome!
** Building
#+begin_example
$ git clone https://github.com/djcb/mu.git
$ cd mu
#+end_example
~mu~ uses ~meson~ for building, so you can use that directly, and all the usual
commands apply. You can also use it _indirectly_ through the provided ~Makefile~,
which provides a number of useful targets.
For instance, using the ~Makefile~, you could install ~mu~ using:
#+begin_example
$ ./autogen.sh && make
$ sudo make install
#+end_example
You can of course also run ~meson~ directly (see the ~meson~ documentation for more
details):
#+begin_example
$ meson setup build
$ meson compile -C build
$ meson install -C build
#+end_example
** Contributing
Contributions are welcome! See the Github issue list and [[IDEAS.org]].
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