project: add README

.envrc

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+use_flake() {
+    watch_file flake.nix
+    watch_file flake.lock
+    eval "$(nix print-dev-env)"
+}
+
+use flake

.gitignore

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+# Nix files
+/result
+/.pre-commit-config.yaml
+
+# Qt files
+/Makefile
+/.qmake.stash

LICENSE

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+MIT License
+
+Copyright (c) [year] [fullname]
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# `dragger`
+
+Drag files from CLI, without the need to open a GUI.
+
+## Usage
+
+Simply issue the command:
+
+```bash
+dragger [FILES...]
+```
+
+`dragger` will initiate a drag-and-drop operation for all files and directories
+provided as arguments.

flake.lock

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+{
+  "nodes": {
+    "flake-utils": {
+      "locked": {
+        "lastModified": 1631561581,
+        "narHash": "sha256-3VQMV5zvxaVLvqqUrNz3iJelLw30mIVSfZmAaauM3dA=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "7e5bf3925f6fbdfaf50a2a7ca0be2879c4261d19",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "ref": "master",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1633329294,
+        "narHash": "sha256-0LpQLS4KMgxslMgmDHmxG/5twFlXDBW9z4Or1iOrCvU=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "ee084c02040e864eeeb4cf4f8538d92f7c675671",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "pre-commit-hooks": {
+      "inputs": {
+        "flake-utils": [
+          "flake-utils"
+        ],
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1631170176,
+        "narHash": "sha256-RLN/kur2Kpxt0cJp0Fms8ixuGpT8IHX0OpeQ8u8f0X4=",
+        "owner": "cachix",
+        "repo": "pre-commit-hooks.nix",
+        "rev": "3ed0e618cebc1ff291c27b749cf7568959cac028",
+        "type": "github"
+      },
+      "original": {
+        "owner": "cachix",
+        "ref": "master",
+        "repo": "pre-commit-hooks.nix",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs",
+        "pre-commit-hooks": "pre-commit-hooks"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

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+{
+  description = "A CLI drag-and-drop tool";
+
+  inputs = {
+    flake-utils = {
+      type = "github";
+      owner = "numtide";
+      repo = "flake-utils";
+      ref = "master";
+    };
+
+    nixpkgs = {
+      type = "github";
+      owner = "NixOS";
+      repo = "nixpkgs";
+      ref = "nixpkgs-unstable";
+    };
+
+    pre-commit-hooks = {
+      type = "github";
+      owner = "cachix";
+      repo = "pre-commit-hooks.nix";
+      ref = "master";
+      inputs = {
+        flake-utils.follows = "flake-utils";
+        nixpkgs.follows = "nixpkgs";
+      };
+    };
+  };
+
+  outputs =
+    { self
+    , flake-utils
+    , nixpkgs
+    , pre-commit-hooks
+    }:
+    flake-utils.lib.eachDefaultSystem
+      (system:
+      let
+        pkgs = import nixpkgs {
+          inherit system;
+          overlays = [ self.overlay ];
+        };
+      in
+      rec {
+        apps = {
+          dragger = flake-utils.lib.mkApp { drv = packages.dragger; };
+        };
+
+        checks = {
+          pre-commit = pre-commit-hooks.lib.${system}.run {
+            src = self;
+
+            hooks = {
+              clang-format = {
+                enable = true;
+                name = "clang-format";
+                entry = "${pkgs.clang-tools}/bin/clang-format -style=file -i";
+                types = [ "text" "c++" ];
+                language = "system";
+              };
+
+              nixpkgs-fmt = {
+                enable = true;
+              };
+            };
+          };
+        };
+
+        defaultApp = apps.dragger;
+
+        defaultPackage = packages.dragger;
+
+        devShell = pkgs.mkShell {
+          nativeBuildInputs = with pkgs; [ ]
+          ++ defaultPackage.nativeBuildInputs
+          ++ defaultPackage.buildInputs
+          ;
+
+          inherit (checks.pre-commit) shellHook;
+        };
+
+        packages = {
+          inherit (pkgs) dragger;
+        };
+      }) // {
+      overlay = final: prev: {
+        dragger = with final; stdenv.mkDerivation {
+          pname = "dragger";
+          version = "0.1.0";
+
+          src = self;
+
+          buildInputs = [
+            libsForQt5.qt5.qtbase
+          ];
+          nativeBuildInputs = [
+            libsForQt5.qt5.wrapQtAppsHook
+          ];
+
+          configurePhase = ''
+            qmake
+          '';
+
+          installPhase = ''
+            mkdir -p $out/bin
+            cp dragger $out/bin
+          '';
+
+          meta = with lib; {
+            description = "A CLI drag-and-drop tool";
+            homepage = "https://gitea.belanyi.fr/ambroisie/dragger";
+            license = licenses.mit;
+            maintainers = [ ambroisie ];
+            platforms = platforms.all;
+          };
+        };
+      };
+    };
+}