genki

The following variables are available, where appropriate:
.Bl -column "XXXXXXXXXXXXXXXXXXX" "XXXXX"
.It Sy "Variable name" Ta Sy "Alias" Ta Sy "Replaced with"
.It Li "alternate_on" Ta "" Ta "If pane is in alternate screen"
.It Li "alternate_saved_x" Ta "" Ta "Saved cursor X in alternate screen"
.It Li "alternate_saved_y" Ta "" Ta "Saved cursor Y in alternate screen"
.It Li "buffer_name" Ta "" Ta "Name of buffer"
.It Li "buffer_sample" Ta "" Ta "Sample of start of buffer"
.It Li "buffer_size" Ta "" Ta "Size of the specified buffer in bytes"
.It Li "client_activity" Ta "" Ta "Integer time client last had activity"

CMCDragonkai

Nix String and Path Concatenation

From Bas van Dijk:

To understand these things I would recommend using nix-repl:

$ nix-repl
Welcome to Nix version 1.11.2. Type :? for help.

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.

derblub

#!/bin/bash

# if spotify is started
if [ "$(pidof spotify)" ]; then
    # status can be: Playing, Paused or Stopped
    status=`dbus-send --print-reply --dest=org.mpris.MediaPlayer2.spotify /org/mpris/MediaPlayer2 org.freedesktop.DBus.Properties.Get string:'org.mpris.MediaPlayer2.Player' string:'PlaybackStatus'|egrep -A 1 "string"|cut -b 26-|cut -d '"' -f 1|egrep -v ^$`
    artist=`dbus-send --print-reply --dest=org.mpris.MediaPlayer2.spotify /org/mpris/MediaPlayer2 org.freedesktop.DBus.Properties.Get string:'org.mpris.MediaPlayer2.Player' string:'Metadata'|egrep -A 2 "artist"|egrep -v "artist"|egrep -v "array"|cut -b 27-|cut -d '"' -f 1|egrep -v ^$`
    album=`dbus-send --print-reply --dest=org.mpris.MediaPlayer2.spotify /org/mpris/MediaPlayer2 org.freedesktop.DBus.Properties.Get string:'org.mpris.MediaPlayer2.Player' string:'Metadata'|egrep -A 1 "album"|egrep -v "album"|cut -b 44-|cut -d '"' -f 1|egrep -v ^$`
    title=`dbus-send --print-reply --dest=org.mpris.MediaPlayer2.spotify /org/mpris/MediaPlayer2 o

fortytw2

Actually, that's a feature
Don't worry, that value is only wrong half of the time
Even though it doesn't work, how does it feel?
Everything looks fine my end
How is that possible?
I broke that deliberately to do some testing
I can have a look but there's a lot of if statements in that code!
I can't make that a priority right now
I can't test everything
I couldn't find any examples of how that can be done anywhere else in the project

PurpleBooth

Project Title

One Paragraph of project description goes here

Getting Started

These instructions will get you a copy of the project up and running on your local machine for development and testing purposes. See deployment for notes on how to deploy the project on a live system.

Prerequisites

travisbhartwell

NOTE: a more up-to-date version of this can be found on my blog

nix-shell and Shebang Lines

A few days ago, version 1.9 of the Nix package manager was released. From the release notes:

nix-shell can now be used as a #!-interpreter. This allows you to write scripts that dynamically fetch their own dependencies.

puffnfresh

#!/bin/sh

sudo mount -o remount,exec /tmp

if [ -x /usr/local/nixstrap/proot-x86_64 ] && [ -h ~/.nix-profile ]; then
  echo "Launching shell with nix-* tools!"
  exec /usr/local/nixstrap/proot-x86_64 -b /usr/local/nixstrap/nix-1.8-x86_64-linux:/nix bash --init-file ~/.nix-profile/etc/profile.d/nix.sh
fi

set -e

nateware

# IE is still braindead so still use favicon.ico

convert -resize x16 -gravity center -crop 16x16+0+0 -flatten -colors 256 input.png output-16x16.ico
convert -resize x32 -gravity center -crop 32x32+0+0 -flatten -colors 256 input.png output-32x32.ico
convert output-16x16.ico output-32x32.ico favicon.ico

# Then, HTML needs to specify size="XxY" as largest size due to browser bugs

<link rel="shortcut icon" href="/favicon.ico" sizes="32x32">

willurd

Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.

Discussion on reddit.

Python 2.x

$ python -m SimpleHTTPServer 8000