From bb7d16565afaf3071ecc466cdbbf15ecb4a61d03 Mon Sep 17 00:00:00 2001
From: Denis Lehmann <lehmann.denis@gmail.com>
Date: Mon, 7 Jan 2019 15:47:29 +0100
Subject: [PATCH] Add python and node virtualenvs

---
 README.md                            |  2 +-
 node_environment/default.nix         | 19 +++++++++++++++++++
 node_environment/global_packages.txt |  0
 python_environment/default.nix       | 20 ++++++++++++++++++++
 python_environment/requirements.txt  |  0
 5 files changed, 40 insertions(+), 1 deletion(-)
 create mode 100644 node_environment/default.nix
 create mode 100644 node_environment/global_packages.txt
 create mode 100644 python_environment/default.nix
 create mode 100644 python_environment/requirements.txt

diff --git a/README.md b/README.md
index b30abe9..f52dd7c 100644
--- a/README.md
+++ b/README.md
@@ -2,4 +2,4 @@
 
 This is a repository for different virtual environments, which can be used with the **Nix** package manager.
 
-Just clone the content of the desired folder to your project, add your required packages to the `requirements.txt` file and run `nix-shell`.
+Just clone the content of the desired folder to your project, add your required packages to the `*.txt` file and run `nix-shell`.
diff --git a/node_environment/default.nix b/node_environment/default.nix
new file mode 100644
index 0000000..88581ef
--- /dev/null
+++ b/node_environment/default.nix
@@ -0,0 +1,19 @@
+with import <nixpkgs> {};
+
+stdenv.mkDerivation {
+  name = "myNodeEnv";
+  buildInputs = with pkgs; [
+    nodejs
+  ];
+  src = null;
+  shellHook = ''
+    mkdir -p .npm
+    if [ -s global_packages.txt ]; then
+      cat global_packages.txt | xargs npm install -g --prefix $PWD/.npm
+    fi
+    if [ -s package.json ]; then
+      npm install
+    fi
+    export PATH=$PWD/.npm/bin:$PATH
+  '';
+}
diff --git a/node_environment/global_packages.txt b/node_environment/global_packages.txt
new file mode 100644
index 0000000..e69de29
diff --git a/python_environment/default.nix b/python_environment/default.nix
new file mode 100644
index 0000000..bd27798
--- /dev/null
+++ b/python_environment/default.nix
@@ -0,0 +1,20 @@
+with import <nixpkgs> {};
+
+stdenv.mkDerivation {
+  name = "myPythonEnv";
+  buildInputs = with pkgs; [
+    python36Full
+    python36Packages.virtualenv
+    python36Packages.pip
+  ];
+  src = null;
+  shellHook = ''
+    # set SOURCE_DATE_EPOCH so that we can use python wheels
+    SOURCE_DATE_EPOCH=$(date +%s)
+    virtualenv --no-setuptools venv
+    export PATH=$PWD/venv/bin:$PATH
+    if [ -s requirements.txt ]; then
+      pip install -r requirements.txt
+    fi
+  '';
+}
diff --git a/python_environment/requirements.txt b/python_environment/requirements.txt
new file mode 100644
index 0000000..e69de29