7c6f434c

#! /bin/sh

nix-instantiate --find-file nixpkgs >/dev/null || {
        echo "Could not find nixpkgs, please set up your NIX_PATH"
        exit 1
}

NIX_DO_STASH="${NIX_DO_STASH:-$HOME/.local/share/nix-do}"
NIX_DO_PROFILE="${NIX_DO_PROFILE:-$(readlink $HOME/.nix-profile)}"

zimbatm

#!/bin/sh
#
# Updates the repo's SHA
#

github_rev() {
  curl -sSf "https://api.github.com/repos/$1/$2/branches/$3" | \
    jq '.commit.sha' | \
    sed 's/"//g'
}

edolstra

General notes

• nix-channel and ~/.nix-defexpr are gone. We'll use $NIX_PATH (or user environment specific overrides configured via nix set-path) to look up packages. Since $NIX_PATH supports URLs nowadays, this removes the need for channels: you can just set $NIX_PATH to e.g. https://nixos.org/channels/nixos-15.09/nixexprs.tar.xz and stay up to date automatically.

• By default, packages are selected by attribute name, rather than the name attribute. Thus nix install hello is basically equivalent to nix-env -iA hello. The attribute name is recorded in the user environment manifest and used in upgrades. Thus (at least by default) hello won't be upgraded to helloVariant.

  @vcunat suggested making this an arbitrary Nix expression rather than an attrpath, e.g. firefox.override { enableFoo = true; }. However, such an expression would not have a key in the user environment, unlike an attrpath. Better to require an explicit flag for this.

TBD: How to deal with search path clashes.

marcelm

#!/usr/bin/env python3
"""
Running this script is (intended to be) equivalent to running the following Snakefile:

include: "pipeline.conf"  # Should be an empty file

shell.prefix("set -euo pipefail;")

rule all:
    input:

lolzballs

import java.io.FileDescriptor;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintStream;

public class HelloWorld{
	private static HelloWorld instance;
    public static void main(String[] args){
        instantiateHelloWorldMainClassAndRun();

takluyver

Copy nbflatten.py to somewhere on $PATH. Then, in the root of a git repository, run these commands:

echo "*.ipynb diff=ipynb" >> .gitattributes 
git config diff.ipynb.textconv nbflatten.py

When you change a notebook and run git diff, you'll see the diff of flattened, simplified notebooks, rather than the full JSON. This does lose some information (metadata, non-text output), but it makes it easier to see simple changes in the notebook.

This doesn't help with merging conflicting changes in notebooks. For that, see nbdiff.org.

lelandbatey

Description

This simple script will take a picture of a whiteboard and use parts of the ImageMagick library with sane defaults to clean it up tremendously.

The script is here:

#!/bin/bash
convert "$1" -morphology Convolve DoG:15,100,0 -negate -normalize -blur 0x1 -channel RBG -level 60%,91%,0.1 "$2"

Results

davidshinn

#!/usr/bin/env python
"""
simple example script for running and testing notebook resulting in a new workbook.

Usage: `ipnbdoctest.py foo.ipynb foo_new.ipynb`

Each cell is submitted to the kernel, and the outputs are compared with those stored in the notebook.
"""

import io