From a2209c4f8e6541fb7b07a67bc821d1f13b176195 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fabi=C3=A1n=20Montero?= <fabian@cluster451.org>
Date: Mon, 28 Mar 2022 23:34:10 -0600
Subject: [PATCH] =?UTF-8?q?crea=20shenvs,=20a=C3=B1ade=20infrastructura=20?=
 =?UTF-8?q?para=20paquetes?=
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---
 flake.nix         |  2 ++
 home/zshrc.nix    | 18 ++++++++++++++++--
 pkgs/default.nix  | 32 ++++++++++++++++++++++++++++++++
 result            |  1 -
 shenvs/armasm.nix |  5 +++++
 5 files changed, 55 insertions(+), 3 deletions(-)
 create mode 100644 pkgs/default.nix
 delete mode 120000 result
 create mode 100644 shenvs/armasm.nix

diff --git a/flake.nix b/flake.nix
index 0b5d61a..d38391f 100644
--- a/flake.nix
+++ b/flake.nix
@@ -23,5 +23,7 @@
       homeDirectory = "/home/fabian";
       stateVersion = "21.11";
     };
+
+    packages.x86_64-linux = import ./pkgs nixpkgs.legacyPackages.x86_64-linux;
   };
 }
diff --git a/home/zshrc.nix b/home/zshrc.nix
index 68522c9..7d5b516 100644
--- a/home/zshrc.nix
+++ b/home/zshrc.nix
@@ -76,7 +76,6 @@
   alias x='killall --ignore-case --user=$(whoami) --interactive'
   alias sc='${maim}/bin/maim -s -u | xclip -selection clipboard -t image/png -i'
   alias tree='tree -CF'
-  alias spawn="xdg-open"
   alias lock="betterlockscreen -l"
   alias nightmode="${redshift}/bin/redshift -P -O 1000"
   alias lightmode="${redshift}/bin/redshift -P -O 6500"
@@ -85,7 +84,22 @@
   bindkey ";5D" backward-word
   bindkey ";5C" forward-word
   bindkey "\e[3~" delete-char
-  
+
+
+  function shenv() {
+    nix shell 'system#shenvs.'"$1"
+  }
+
+  function spawn () {
+    if [ ! -x "$(command -v $1)" ]
+      then
+         echo "spawn: no such program: $1" >&2
+         return 1
+     fi
+     $@ > /dev/null 0>&1 2>&1 &
+     disown
+  }
+
   autoload -Uz up-line-or-beginning-search
   zle -N up-line-or-beginning-search
   autoload -Uz down-line-or-beginning-search
diff --git a/pkgs/default.nix b/pkgs/default.nix
new file mode 100644
index 0000000..e477dd4
--- /dev/null
+++ b/pkgs/default.nix
@@ -0,0 +1,32 @@
+pkgs:
+with pkgs.lib; let
+  inherit (pkgs) buildEnv callPackage writeTextDir;
+
+  importAll = { root, exclude ? [] }:
+
+    # adapted from http://chriswarbo.net/projects/nixos/useful_hacks.html
+    let
+      basename = removeSuffix ".nix";
+
+      isMatch = name: type: (hasSuffix ".nix" name || type == "directory")
+                         && ! elem name (map basename exclude);
+
+      entry = name: _: {
+        name = basename name;
+        value = import (root + "/${name}");
+      };
+    in
+      mapAttrs' entry (filterAttrs isMatch (readDir root))
+
+in {
+  shenvs = let
+    build = name: { paths, enter ? null }: buildEnv {
+      name = "shenv-${name}";
+      paths = (optional (enter != null) (writeTextDir "lib/shenv/enter" enter))
+            ++ paths;
+    };
+  in mapAttrs (name: shenv: build name (shenv pkgs)) (importAll {
+    root = ../shenvs;
+    exclude = [ "config" ];
+  });
+}
diff --git a/result b/result
deleted file mode 120000
index 4ba7032..0000000
--- a/result
+++ /dev/null
@@ -1 +0,0 @@
-/nix/store/8by51srkm9s1rfiqlsp4n6fznm7bjzqb-home-manager-generation
\ No newline at end of file
diff --git a/shenvs/armasm.nix b/shenvs/armasm.nix
new file mode 100644
index 0000000..a73b03f
--- /dev/null
+++ b/shenvs/armasm.nix
@@ -0,0 +1,5 @@
+pkgs: {
+  paths = with pkgs; [
+    gcc-arm-embedded
+  ];
+}