This fixes music playback when using the `services.airsonic.virtualHost`
option.

…ation

To quote the XDG specification:

     There is a single base directory relative to which user-specific
     data files should be written. This directory is defined by the\
     environment variable $XDG_DATA_HOME.

Rather than adding another directory to $HOME, I think that it's better
to follow this standard to avoid a cluttered home-dir.

vscode-extensions.rust-analyzer: 2020-03-09 -> 2020-03-16

This allows users that are members of the boinc group
to interact with the boinc service by running:

boincmgr -d /var/lib/boinc

This module implements builder for hyper-v images.

These have been available for a while it seems.

In contrast to `.service`-units, it's not possible to declare an
`overrides.conf`, however this is done by `generateUnits` for `.nspawn`
units as well. This change breaks the build if you have two derivations
configuring one nspawn unit.

This will happen in a case like this:

``` nix
{ pkgs, ... }: {
  systemd.packages = [
    (pkgs.writeTextDir "etc/systemd/nspawn/container0.nspawn" ''
      [Files]
      Bind=/tmp
    '')
  ];
  systemd.nspawn.container0 = {
    /* ... */
  };
}
```

The documentation says this should be a list, and it already is in
about half the expressions that set it.

The difference doesn't matter at present, because these values are all
space-free literals.  But it will in a future with __structuredAttrs .

(The similar attr stripAllList has no users in the nixpkgs tree, so
there's nothing to do to fix any of those up.)

This has changed a few times from 2008 to 2012: cdc74e1, d9213df,
and 095db9f.

…yzer

…ate script

Doesn't build with gcc9, and if overlayed to use gcc8 stdenv fails on CUDA issues.

…endencies

This bumps subsurface to 4.9.3.

As the subsurface-specific libdivecomputer source is shipped as a git
submodule these days, we can avoid having to fetch a separate tarball
that needs to be kept in sync (and is only uploaded for each release).

This also applies a patch on top of 4.9.3 to properly handle libgit2
versions 1.0 and later - conditional code for older libgit versions has
been removed upstream, but that's a nontrivial backport, which is why
this patch was added.

without this fix, binaries report their version number as "vnone"
which for example stops `image_optim` from using `advpng` (refuses
to use it not being able to tell what version number it has)

Note: tests are available, should be added in the future (crowbar is required)

When trying to build a VM using `nixos-build-vms` with a configuration
that doesn't evaluate, an error "at `<unknown-file>`" is usually shown.

This happens since the `build-vms.nix` creates a VM-network of
NixOS-configurations that are attr-sets or functions and don't contain
any file information. This patch manually adds the `_file`-attribute to
tell the module-system which file contained broken configuration:

```
$ cat vm.nix
{ vm.invalid-option = 1; }

$ nixos-build-vms vm.nix
error: The option `invalid-option' defined in `/home/ma27/Projects/nixpkgs/vm.nix@node-vm' does not exist.
(use '--show-trace' to show detailed location information)
```

updated:

* irmin
* irmin-fs
* irmin-git
* irmin-graphql
* irmin-http
* irmin-mem
* irmin-pack (also added new dependecy ocaml_lwt)
* irmin-test
* irmin-unix
* irmin-watcher

This needs to be set in the .linkConfig of a .network

… devices

Setting a MAC Address on a tun interface isn't supported, and invoking
the corresponding command fails.

The unit sets MTU and MAC Address even with networkd enabled, which
isn't necessary anymore, as networkd handles this by itself.

This was whitespace-sensitive, kept fighting with my editor and broke
the tests easily. To fix this, let python convert the output to
individual lines, and strip whitespace from them before comparing.

We only need to wait for network.target to get up, and the
network-addresses-${interfaceName} units are scripted networking only.

Both the scripted and networkd backend now support setting MTU and MAC
Address, so do this in a test to ensure it doesn't break.