initial commit

devenv.nix

@@ -0,0 +1,46 @@
+{ pkgs, lib, ... }:
+
+{
+  # https://devenv.sh/packages/
+  packages = [
+  	   pkgs.bash
+	   pkgs.elixir
+	   pkgs.erlang
+	   pkgs.postgresql
+	   pkgs.hex
+	   pkgs.rebar3
+  ] ++ lib.optionals pkgs.stdenv.isLinux [ pkgs.inotify-tools pkgs.libnotify ];
+
+
+  env = {
+      PGHOST = "localhost";
+      PGPORT = "5432";
+      PGUSER= "postgres";
+      PGPASSWORD = "postgres";
+      ERL_AFLAGS = "-kernel shell_history enabled";
+      MIX_REBAR3 = "${pkgs.rebar3.outPath}/bin/rebar3";
+  };
+
+  enterShell = ''
+      export MIX_HOME="$PWD/.nix-mix"
+      export HEX_HOME="$PWD/.nix-hex"
+      mkdir -p "$MIX_HOME"
+      mkdir -p "$HEX_HOME"
+      export ESBUILD_PATH=${pkgs.esbuild}/bin/esbuild
+      [[ "$PATH" =~ "$MIX_HOME/bin" ]] || export PATH="$MIX_HOME/bin:$PATH"
+      [[ "$PATH" =~ "$HEX_HOME/bin" ]] || export PATH="$HEX_HOME/bin:$PATH"
+  '';
+
+
+  # https://devenv.sh/languages/
+  languages.elixir.enable = true;
+  # languages.nix.enable = true;
+
+  # https://devenv.sh/pre-commit-hooks/
+  # pre-commit.hooks.shellcheck.enable = true;
+
+  # https://devenv.sh/processes/
+  # processes.ping.exec = "ping example.com";
+
+  # See full reference at https://devenv.sh/reference/options/
+}