init

4 files changed, 67 insertions, 0 deletions

diff --git a/day2/ex1-hello-world/default.nix b/day2/ex1-hello-world/default.nix
new file mode 100644
index 0000000..8eaffa7
--- /dev/null
+++ b/day2/ex1-hello-world/default.nix
@@ -0,0 +1,22 @@
+/*
+   This first exercise demonstrates how to define a processing stage,
+which is just instructions on how to compute an output (the
+`buildCommand`) from some inputs (in this case, there are no inputs).
+Each stage must minimally define a `name`, shell code to build the
+output in `buildCommand`, and any software that's required in
+`buildInputs`.  Note that `buildInputs = []` if not defined, meaning no
+extra requirements over the standard environment.
+
+Try replacing the echo below with output from the GNU hello program.
+Hint:  the GNU hello program is available at `pkgs.hello` and the
+executable is called `hello`.
+*/
+{bionix}:
+with bionix;
+  stage {
+    name = "hello-world";
+
+    buildCommand = ''
+      echo hello world > $out
+    '';
+  }
diff --git a/day2/ex1-hello-world/flake.lock b/day2/ex1-hello-world/flake.lock
new file mode 120000
index 0000000..981422e
--- /dev/null
+++ b/day2/ex1-hello-world/flake.lock
@@ -0,0 +1 @@
+../../common/flake.lock
\ No newline at end of file
diff --git a/day2/ex1-hello-world/flake.nix b/day2/ex1-hello-world/flake.nix
new file mode 100755
index 0000000..bfaca96
--- /dev/null
+++ b/day2/ex1-hello-world/flake.nix
@@ -0,0 +1,20 @@
+{
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs";
+    bionix.url = "github:papenfusslab/bionix";
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs = {
+    self,
+    nixpkgs,
+    bionix,
+    flake-utils,
+  }:
+    flake-utils.lib.eachDefaultSystem (system: let
+      pkgs = import nixpkgs {inherit system;};
+      bionix' = import bionix {nixpkgs = pkgs;};
+    in {
+      defaultPackage = bionix'.callBionix ./. {};
+    });
+}
diff --git a/day2/ex1-hello-world/solution.nix b/day2/ex1-hello-world/solution.nix
new file mode 100644
index 0000000..d0531a2
--- /dev/null
+++ b/day2/ex1-hello-world/solution.nix
@@ -0,0 +1,24 @@
+/*
+   This first exercise demonstrates how to define a processing stage,
+which is just instructions on how to compute an output (the
+`buildCommand`) from some inputs (in this case, there are no inputs).
+Each stage must minimally define a `name`, shell code to build the
+output in `buildCommand`, and any software that's required in
+`buildInputs`.  Note that `buildInputs = []` if not defined, meaning no
+extra requirements over the standard environment.
+
+Try replacing the echo below with output from the GNU hello program.
+Hint:  the GNU hello program is available at `pkgs.hello` and the
+executable is called `hello`.
+*/
+{bionix}:
+with bionix;
+  stage {
+    name = "hello-world";
+
+    buildInputs = [pkgs.hello];
+
+    buildCommand = ''
+      hello > $out
+    '';
+  }