ci: rework flake integration

Now Use flake part and integrate a build system using nix package building and treefmt-nix as a flake-part module

nix/build.nix

@@ -0,0 +1,34 @@
+{ inputs, ... }:
+let
+  inherit (inputs.flake-parts.lib) mkPerSystemOption;
+in
+{
+  options.perSystem = mkPerSystemOption (
+    {
+      pkgs,
+      config,
+      ...
+    }:
+    {
+      packages.default = pkgs.stdenvNoCC.mkDerivation {
+        name = "xiemeart";
+        src = ../.;
+        nativeBuildInputs = config.buildPackages;
+        configurePhase = ''
+          ln -snf ${config.pelicantheme} theme
+          ln -snf ${config.pelicanplugins} plugins
+        '';
+        buildPhase = ''
+          ls -la
+          mkdir -p output
+          pelican --verbose -o output/ 2>& 1>build.log
+        '';
+        installPhase = ''
+          mkdir -p $out/
+          cp build.log $out/
+          cp -r output/* $out/
+        '';
+      };
+    }
+  );
+}

nix/default.nix

@@ -0,0 +1,9 @@
+{ ... }:
+{
+  imports = [
+    ./treefmt.nix
+    ./packages.nix
+    ./devshell.nix
+    ./build.nix
+  ];
+}

nix/devshell.nix

@@ -0,0 +1,20 @@
+_: {
+  config.perSystem =
+    {
+      config,
+      inputs',
+      pkgs,
+      ...
+    }:
+    {
+      devShells = {
+        default = pkgs.mkShell {
+          nativeBuildInputs = config.buildPackages ++ config.develPackages ++ config.deployPackages;
+          shellHook = ''
+            ln -snf ${config.pelicanplugins} plugins
+            ln -snf ${config.pelicantheme} theme
+          '';
+        };
+      };
+    };
+}

nix/packages.nix

@@ -0,0 +1,105 @@
+{
+  lib,
+  inputs,
+  ...
+}:
+let
+  inherit (lib) mkOption mdDoc types;
+  inherit (inputs.flake-parts.lib) mkPerSystemOption;
+in
+{
+  options.perSystem = mkPerSystemOption (
+    {
+      pkgs,
+      config,
+      ...
+    }:
+    {
+      options = {
+        buildPackages = mkOption {
+          description = mdDoc "Python package used in the project";
+          type = types.listOf types.package;
+          default = with pkgs; [
+            python311
+            python311Packages.markdown-include
+            python311Packages.pelican
+            python311Packages.typogrify
+          ];
+        };
+        develPackages = mkOption {
+          description = mdDoc "Python package used to development";
+          type = types.listOf types.package;
+          default = with pkgs; [
+            convco
+            go-task
+            lefthook
+            python3Packages.invoke
+            python3Packages.livereload
+            shellcheck
+            shfmt
+            typos
+          ];
+        };
+        deployPackages = mkOption {
+          description = mdDoc "Package use to deploy";
+          type = types.listOf types.package;
+          default = with pkgs; [
+            rsync
+          ];
+        };
+        pelicanplugins = mkOption {
+          type = types.package;
+          description = mdDoc "Pelican plugins used in my blog";
+          default =
+            with pkgs;
+            stdenvNoCC.mkDerivation {
+              name = "pelicanplugins";
+              pname = "pelicanplugins";
+              version = "1.0.0";
+              sourceRoot = ".";
+              srcs = [
+                (pkgs.fetchFromGitHub {
+                  name = "neighbors";
+                  owner = "pelican-plugins";
+                  repo = "neighbors";
+                  rev = "60649ac6f3494d01a37b9c6d3d455f9dc2502d55";
+                  hash = "sha256-c6etuRqve9xj6NhGRAim2A0ae8xv6mI/yez+suQuZ8U=";
+                })
+                (pkgs.fetchFromGitHub {
+                  name = "markdown-include";
+                  owner = "pelican-plugins";
+                  repo = "markdown-include";
+                  rev = "df0b3e55c45471283ca62d6e157b61a8caa35e37";
+                  hash = "sha256-y0dIvyEYLbYqkm+6yJOUYI3apzEMJ/N/JUwWTqjdsNg=";
+                })
+              ];
+              installPhase = ''
+                cp -r markdown-include/pelican/plugins/ $out/
+                cp -r neighbors/pelican/plugins/neighbors $out/
+              '';
+            };
+        };
+        pelicantheme = mkOption {
+          type = types.package;
+          description = mdDoc "My personnal Pelican theme";
+          default = (
+            with pkgs;
+            stdenvNoCC.mkDerivation {
+              name = "pelicantheme-atilla";
+              pname = "pelicantheme-atilla";
+              version = "main";
+              src = pkgs.fetchgit {
+                url = "https://git.epha.se/ephase/attila_pelican_theme";
+                rev = "c5923a4be38d9c646a9dc261fb0ba4f24fe5655a";
+                hash = "sha256-DaaumjR23pXrACRHX9FssxE56nV7vLRy7HjRclm6rgs=";
+              };
+              installPhase = ''
+                cp -r $src/ $out
+              '';
+            }
+          );
+        };
+      };
+    }
+  );
+}

nix/treefmt.nix

@@ -0,0 +1,18 @@
+_: {
+  config.perSystem =
+    {
+      config,
+      inputs',
+      pkgs,
+      ...
+    }:
+    {
+      treefmt = {
+        programs = {
+          shfmt.enable = true;
+          alejandra.enable = true;
+          nixfmt.enable = true;
+        };
+      };
+    };
+}