5a3bae7be5
220: Drop flattenTreeSystem and use custom function for filtering packages r=nrdxp a=Pacman99 I don't think we should flatten the system because if a user doesn't make a package a derivation in pkgs/default.nix we should trust that there is a reason for doing so. So instead this drops the flattenTreeSystem reference(and switches to flake-utils master branch) and replaces its usage with a custom function `filterPackages`. This function filter all packages that match three conditions; - is a derivation - not broken - system is supported In that order as to not cause errors when trying to reference non-derivation meta attributes. And then also just dump *all* packages into legacy packages, so everything else is still accessible. I was considering removing the packages that are already in the packages output in legacyPackages, but I don't think its necessary since nix looks to the packages output first. Co-authored-by: Pacman99 <pachum99@gmail.com> |
||
---|---|---|
.. | ||
devos | ||
attrs.nix | ||
default.nix | ||
lists.nix | ||
README.md | ||
strings.nix |
Lib
The lib directory mirrors the upstream concepts of nixpkgs:./lib
,
nixpkgs:./nixos/lib
and nixpkgs:./pkgs/pkgs-lib
,
but also occasionally nixpkgs:./pkgs/build-support
.
It comes with functions necesary to declutter devos
itself, but you are
welcome to extend it to your needs.
For example:
-
you want to add a library function that depends on some packages and use it throughout your devos environment: place it into
./lib
as if you would place it intonixpkgs:./pkgs/pkgs-lib
. -
you want to add library functions that don't depend on
pkgs
: place them into./lib
as if you would place them intonixpkgs:./lib
. -
need to try out a newish custom build support: place it here before upstreaming into
nixpkgs:./pkgs/build-support
. -
you want to reutilize certain module configuration functions or helpers: place them into
./lib
as if you would place them intonixpkgs:./nixos/lib
.
Once your library grows, we recoomend you start organizing them into subfolders
analogous nixpkgs
:
nixpkgs |
devos |
---|---|
./lib |
./lib |
./pkgs/pkgs-lib |
./lib/pkgs-lib |
./nixos/lib |
./lib/nixos-lib |
./pkgs/build-support |
./lib/pkgs-build |
Example
lib/nixos-lib/mkCustomI3BindSym/default.nix:
{ pkgs, writers, ... }:
{ name, cmd, workspace, baseKey }:
let
isWorkspaceEmpty = writers.writePython3 "is-workspace-empty" {
libraries = [ pkgs.python3Packages.i3ipc ];
} (builtins.readFile ./is-workspace-empty.py);
ws = builtins.toString workspace;
in
''
# ${name}
#bindsym ${baseKey}+${ws} workspace ${ws}; exec ${cmd}
bindsym ${baseKey}+${ws} workspace ${ws}; exec bash -c "${isWorkspaceEmpty} && ${cmd}"
''
lib/nixos-lib/mkCustomI3BindSym/is-workspace-empty.py:
# returns 0/1 if current workspace is empty/non-empty
import i3ipc
i3 = i3ipc.Connection()
tree = i3.get_tree()
def current_workspace():
return tree.find_focused().workspace()
if current_workspace().leaves():
print("Error current workspace is not empty")
exit(1)
exit(0)
lib/default.nix:
{ nixos, pkgs, ... }:
# ...
{
# ...
mkCustomI3BindSym = pkgs.callPackage ./nixos-lib/mkCustomI3BindSym { };
}