sinewalker

define :chiparp do |notes, duration, c_amp=0.8, c_Hz=30, c_sust_ratio=1, c_step=1|
  tx=bt(1) # seconds for 1 beat
  in_thread do
    use_bpm 60 # normalise bpm to 1 beat per second
    c_speed = 1.0/c_Hz #the chip speed is better converted from Hz
    count = (duration * tx / c_speed)
    
    use_synth :chiplead
    use_synth_defaults amp: c_amp, sustain: c_speed*c_sust_ratio,
      attack: 0, decay: 0, release: 0

sinewalker

SVN doesn't seem to let you revert multiple files with a wildcard (or say if you deleted a whole directory tree in error)?

This works:

svn status|awk '/^D/{system("svn revert " $2)}'

There's probably another way....

sinewalker

#!/bin/bash

#Add specified SSH keys to the SSH Agent, using SSH_ASKPASS to retrieve
#each key's passphrase from the Unix password store (pass).
#This relies upon the keys having the same names in both your key directory
#and your password store.

if [[ -z ${1} ]]; then
  echo "$(basename ${0}): no SSH key specified" 1>&2
  exit 1;

sinewalker

This should be a blog post, and I'll make it one when I have more than 5 mins to spare. For instance these examples are hard-coded for my github SSH key, rather than parameterised.

Based on this SO question

Rather than use pass -c to copy an SSH key passphrase to your system clipboard and then paste it at the ssh-askpass prompt (which is not very secure: any program can read the clipboard), you can use an SSH_ASKPASS script to retrieve the passphrase from password store and give it to ssh-add.

1. Make a script that retrieves the passphrase from pass (which in turn will prompt for a master passphrase if needed, via GnuPG PinEntry):

#!/bin/bash

sinewalker

use_bpm 150
use_synth :tech_saws
live_loop :crash do
  2.times do
    play_pattern_timed [:C4,:r,:C4,:F4, :G4,:C5,:r,:Bb4], 0.5
    play_pattern_timed [:r,:G4,:r,:G4,  :Gb4,:G4,:Gb4,:G4], 0.5
  end
  
  play_pattern_timed [:F4,:F4, :r], 1
  play_pattern_timed [:r,:F4], 0.5

sinewalker

#I wanted to hear if Tainted Love and Dr. Who go together...  ;-)
use_bpm 120
live_loop :metro do
  tick
  cue :beet
  sleep 1
end

live_loop :bass, sync_bpm: :beet do
  ##| stop

sinewalker

/usr/bin/ruby -e "ARGV=['--force-curl'] $(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

sinewalker

#Heard these chords somewhere on the way to work this morning, no idea what the tune was, sorry
# Anyway they gave me a bit of inspiration as I finished walking to the office, and I hacked this out
# in about 20 mins.
#
# play with the ixi/slicer fx phases, and the ixi res, and start up the bass + simple drums
#
# I found that if you wait/sleep at the end of the drum/bass loops, you'll miss the cue for the start
# of the bar, so that's why the final waits are commented out.  Also if you sync at the start, it'll
# again miss the cue and wait a whole bar.  Not sure best ways to resolve this -- just comment where
# they sync, I suppose.

sinewalker

#Knight Rider Main Theme
# by Stu Phillips, 1981
# Sonic Pi transcript, Mike Lockhart, 2018

# (missing Rtyhm Section: Buffer Capacity reached)

#motifs

define :kr0 do |n|
  play_pattern_timed [n, :r, n+1, n,  n, n+1, n, n], 0.25

sinewalker

# Chord Inversions

# Coded by Adrian Cheater

# (in a single tweet)
# https://twitter.com/wpgFactoid/status/666692596605976576

# Mike Lockhart made a small mod to loop through all of Sonic Pi's built-in scales
# (73 of them for SP v3.1 !)