feat: add flake

.envrc

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+use flake

.gitignore

@@ -1 +1,3 @@
 /target
+result
+.direnv

README.md

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+# repo-rs
+
+## Usage
+
+`h repo-name` resolves the path to `repo-name` and changes the current working directory to it.
+`h https://git.example.com/dadada/example.git` clones the repo `example` into `~/code/git.example.com/dadada/example` and changes the current working directory to it.
+In this example `~/code` is the path in which repos should be stored; it can be specified using `export REPO_CODE_ROOT=$HOME/code`.
+
+## Installation
+
+Install the `repo` tool and install the shell function. The function changes your current working directory to the resolved directory.
+
+```sh
+cargo install
+eval "$(repo setup --root ~/git)"
+```

default.nix

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+{
+  lib,
+  rustPlatform,
+}:
+rustPlatform.buildRustPackage (finalAttrs: {
+  pname = "repo-rs";
+  version = "0.0.1";
+  src = ./.;
+  cargoHash = "sha256-iTny671GtQV4nTwF4W2sZyESWaYcYwH2UJAdLrhsW8g=";
+  meta = {
+    description = "repo-rs";
+    license = lib.licenses.mit0;
+    maintainers = with lib.maintainers; [ dadada ];
+    mainProgram = "repo";
+  };
+})

flake.lock

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+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1754498491,
+        "narHash": "sha256-erbiH2agUTD0Z30xcVSFcDHzkRvkRXOQ3lb887bcVrs=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "c2ae88e026f9525daf89587f3cbee584b92b6134",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

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+{
+  description = "Repo RS";
+
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";
+  };
+
+  outputs = { self, nixpkgs }: {
+    devShells.x86_64-linux.default = import ./shell.nix { pkgs = nixpkgs.legacyPackages.x86_64-linux; };
+    packages.x86_64-linux.repo-rs = nixpkgs.legacyPackages.x86_64-linux.callPackage ./. { };
+    packages.x86_64-linux.default = self.packages.x86_64-linux.repo-rs;
+  };
+}