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#!/usr/bin/env bash
set -e
fluxlib bash

# this builds configuration files from templates
# it takes a template for a nix expression and replaces
# certain variables with values stored in some files.

function maketemp

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{ pkgs, stdenv}:

let

    version = "0.0.1";

in stdenv.mkDerivation 
{

    name = "script-${version}";

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{ pkgs, stdenv}:

# flux
#   bin/
#      flux.sh
#   lib/
#      subcom1
#      subcom2
#      ...
#   flux.nix

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#!/usr/bin/env bash
set -e

# Main flux script

# Look for scripts in this directory
BINDIR="$(dirname "$0")"
LIBDIR="$(dirname ${BINDIR})/lib"

# Execute commands

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$ sudo nixos-rebuild switch --show-trace
building Nix...
building the system configuration...
trace: { rev = "5277d96745afcc04a0873102f4a5f80cfc68fa23"; sha256 = "17h2ijb50q76al72hpggv35bbqiayyzvybmfwyx1cr5xzlpvzcqh"; url = "https://github.com/teozkr/Sbtix"; }
error: while evaluating the attribute ‘buildCommand’ of the derivation ‘nixos-system-meso-17.03.1160.f2c4af4e3b’ at /nix/var/nix/profiles/per-user/root/channels/nixos/nixpk
gs/nixos/modules/system/activation/top-level.nix:107:7:
while evaluating the attribute ‘sources’ of the derivation ‘etc’ at /nix/var/nix/profiles/per-user/root/channels/nixos/nixpkgs/nixos/modules/system/etc/etc.nix:12:5:
while evaluating anonymous function at /nix/var/nix/profiles/per-user/root/channels/nixos/nixpkgs/nixos/modules/system/etc/etc.nix:20:20, called from undefined position:
while evaluating the attribute ‘source’ at /nix/var/nix/profiles/per-user/root/channels/nixos/nixpkgs/lib/attrsets.nix:199:44:
while evaluating anonymous function at /nix/var/nix/profiles/per-user/r

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error: while evaluating the attribute ‘buildCommand’ of the derivation ‘nixos-system-meso-17.03.1395.9b948ea439’ at /nix/var/nix/profiles/per-user/root/channels/nixos/nixpk
gs/nixos/modules/system/activation/top-level.nix:107:7:
while evaluating the attribute ‘sources’ of the derivation ‘etc’ at /nix/var/nix/profiles/per-user/root/channels/nixos/nixpkgs/nixos/modules/system/etc/etc.nix:12:5:
while evaluating anonymous function at /nix/var/nix/profiles/per-user/root/channels/nixos/nixpkgs/nixos/modules/system/etc/etc.nix:20:20, called from undefined position:
while evaluating the attribute ‘source’ at /nix/var/nix/profiles/per-user/root/channels/nixos/nixpkgs/lib/attrsets.nix:199:44:
while evaluating anonymous function at /nix/var/nix/profiles/per-user/root/channels/nixos/nixpkgs/lib/modules.nix:75:45, called from /nix/var/nix/profiles/per-user/root/cha
nnels/nixos/nixpkgs/lib/attrsets.nix:199:52:
while evaluating the attribute ‘value’ at /nix/var/nix/profiles/per-user/root/channels/nixos/nixpkgs/lib/modules.n

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{ config, pkgs, ... }: 


{

    nixpkgs.config = 
    {
        # Allow proprietary packages
        allowUnfree = true;

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these derivations will be built:
  /nix/store/gs7vy9gd6cdm14jyzkk5zvi7a99g5p05-python3.6-jupyterhub-0.8.1.drv
building path(s) ‘/nix/store/llfk8qxk218gya1awili8akrdj3gfcjc-python3.6-jupyterhub-0.8.1’
unpacking sources
unpacking source archive /nix/store/16c26vhfd7wni4qzmzp6vsxkr17k90pz-jupyterhub-0.8.1.tar.gz
source root is jupyterhub-0.8.1
setting SOURCE_DATE_EPOCH to timestamp 1510058379 of file jupyterhub-0.8.1/PKG-INFO
patching sources
configuring
building

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{ pkgs, myFunc, ... }:

myFunc {
    x = path.to.stuff;
  }

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{ config, lib, pkgs, ... }:

with lib;

let

  cfg = config.services.jupyterlab;


  kernels = (pkgs.jupyterKernels.create  {