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add shell.nix and tidy docs to take advantage of it

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This commit is contained in:
Daniel Barlow 2023-02-17 20:19:45 +00:00
parent 832221748b
commit 37caac1d56
3 changed files with 23 additions and 16 deletions
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21
doc/developer.rst
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@ -11,7 +11,7 @@ available in the ``buildEnv`` derivation.
.. code-block:: console
nix-shell -A buildEnv --arg device '(import ./devices/qemu)'
nix-shell -A buildEnv
Emulated devices
@ -27,7 +27,7 @@ To build it,
.. code-block:: console
NIX_PATH=nixpkgs=../nixpkgs:$NIX_PATH nix-build -I liminix-config=path/to/your/configuration.nix --arg device "import ./devices/qemu" -A outputs.default
nix-build -I liminix-config=path/to/your/configuration.nix --arg device "import ./devices/qemu" -A outputs.default
In a ``buildEnv`` nix-shell, you can use the ``mips-vm`` command
to run Qemu with appropriate options. It connects the Liminix
@ -35,7 +35,7 @@ serial console and the `QEMU monitor <https://www.qemu.org/docs/master/system/m
.. code-block:: console
nix-shell -A buildEnv --arg device '(import ./devices/qemu)' --run "mips-vm result/vmlinux result/squashfs"
nix-shell -A buildEnv --run "mips-vm result/vmlinux result/squashfs"
If you run with ``--background /path/to/some/directory`` as the first
parameter, it will fork into the background and open Unix sockets in
@ -71,7 +71,7 @@ This is made available as the ``routeros`` command in ``buildEnv``, so you
can do something like::
mkdir ros-sockets
nix-shell -A buildEnv --arg device '(import ./devices/qemu)'
nix-shell -A buildEnv
nix-shell$ routeros ros-sockets
nix-shell$ connect-vm ./ros-sockets/console
@ -104,7 +104,7 @@ do something like this:
.. code-block:: console
nix-shell -A buildEnv --arg device '(import ./devices/qemu)' \
nix-shell -A buildEnv
--run "tufted -a 192.168.8.251 result"
and then issue appropriate U-boot commands to download and flash the
@ -198,7 +198,7 @@ because it has dependencies on other things you didn't know about. Build the
``outputs.manifest`` attribute, which is a JSON representation of the
filesystem, and you can run ``nix-store --query`` on it.::
NIX_PATH=nixpkgs=../nixpkgs:$NIX_PATH nix-build -I liminix-config=path/to/your/configuration.nix --arg device "import ./devices/qemu" -A outputs.manifest -o manifest
nix-build -I liminix-config=path/to/your/configuration.nix --arg device "import ./devices/qemu" -A outputs.manifest -o manifest
nix-store -q --tree manifest
@ -216,8 +216,8 @@ already started on.
Nix language style
==================
In an attempt to keep this more consistent than NixWRT ended up being,
here is a Nix language style guide for this repo.
This section describes some Nix language style points that we
attempt to adhere to in this repo.
* favour ``callPackage`` over raw ``import`` for calling derivations
or any function that may generate one - any code that might need
@ -259,6 +259,7 @@ variety of licences. I have no intention of asking for copyright
assignment: just like when submitting to the Linux kernel you retain
the copyright on the code you contribute.
Code of Conduct
===============
@ -269,8 +270,8 @@ Where to send patches
=====================
Liminix' primary repo is https://gti.telent.net/dan/liminix but that
doesn't help you much, because it doesn't have open registrations.
Liminix' primary repo is https://gti.telent.net/dan/liminix but you
can't send code there directly because it doesn't have open registrations.
* There's a `mirror on Github <https://github.com/telent/liminix>`_ for
convenience and visibility: you can open PRs against that

10
doc/user.rst
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@ -23,19 +23,17 @@ it. For example:
.. code-block:: console
NIX_PATH=nixpkgs=../nixpkgs:$NIX_PATH nix-build -I liminix-config=./tests/smoke/configuration.nix --arg device "import ./devices/qemu" -A outputs.default
nix-build -I liminix-config=./tests/smoke/configuration.nix --arg device "import ./devices/qemu" -A outputs.default
``outputs.default`` is intended to do something appropriate for the
device, whatever that is. For the qemu device, it creates a directory
containing a squashfs root image and a kernel.
As of Feb 2023, flashing devices is not implemented other than by
taking the covers off and connecting wires to the serial console
pads - so, check in the Developer Manual.
Future versions of this manual will at this point refer to
device-specific instructions for installing Liminix using the router's
Web UI or other non-invasive method.
Web UI or other non-invasive method. As of Feb 2023, the only way to
flash a device is to take the cover off and connect wires to the
serial console pads - so, check in the Developer Manual.
Updating a running device

8
shell.nix Normal file
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@ -0,0 +1,8 @@
let
nixpkgs = <nixpkgs>;
liminix = (import ./default.nix {
device = (import ./devices/qemu);
liminix-config = ./vanilla-configuration.nix;
inherit nixpkgs;
});
in liminix