Shun Chu shunchu
shunchu
/ convert-seconds-into-hh-mm-ss-in-ruby.rb
Created
July 25, 2012 07:58
Convert seconds into HH:MM:SS in Ruby
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| t = 236 # seconds | |
| Time.at(t).utc.strftime("%H:%M:%S") | |
| => "00:03:56" | |
| # Reference | |
| # http://stackoverflow.com/questions/3963930/ruby-rails-how-to-convert-seconds-to-time |
shunchu
/ video-thumbnails-generator.sh
Created
November 15, 2012 18:00
Batch generate thumbnails from mp4 files using ffmpg
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| #!/bin/bash | |
| # setup | |
| FILES=name_of_file_to_match_*.mp4 | |
| SEEK_POINT=00:00:30 | |
| IMG_FORMAT=png | |
| FRAME_SIZE=150X100 | |
| DEST=thumbnails | |
| for f in $FILES |
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| tap "caskroom/cask" | |
| tap "caskroom/drivers" | |
| tap "caskroom/fonts" | |
| tap "homebrew/bundle" | |
| tap "homebrew/core" | |
| tap "homebrew/science" | |
| tap "homebrew/services" | |
| brew "ack" | |
| brew "readline" | |
| brew "autoconf" |
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| source ~/.aliases | |
| source ~/.exports | |
| source /usr/local/share/chruby/chruby.sh | |
| source /usr/local/share/chruby/auto.sh | |
| # load zgen | |
| ZGEN_PREZTO_LOAD_DEFAULT=0 | |
| source "${HOME}/.zgen/zgen.zsh" | |
| # if the init scipt doesn't exist |
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| chefdk |
shunchu
/ display-ember-promise-errors.js
Last active
August 4, 2017 03:26
display ember promise errors
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| // source: https://ianpetzer.wordpress.com/2013/07/24/dont-let-ember-js-swallow-errors-in-your-promises/ | |
| Ember.RSVP.configure('onerror', function(e) { | |
| console.log(e.message); | |
| console.log(e.stack); | |
| }); |
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| import Ember from 'ember'; | |
| import { task, timeout } from 'ember-concurrency'; | |
| const { inject: { service } } = Ember; | |
| export default Ember.Component.extend({ | |
| ajax: service(), | |
| result: null, | |
| queryTask: task(function* (term) { | |
| yield timeout(600); |
shunchu
/ ways_to_create_ruby_singleton_methods.rb
Last active
December 20, 2015 01:18
Ways to create Singleton Methods in Ruby
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| # Reference: http://madebydna.com/all/code/2011/06/24/eigenclasses-demystified.html | |
| class Dog | |
| def self.closest_relative | |
| "wolf" | |
| end | |
| end | |
| class Dog | |
| class << self |
shunchu
/ no-ruby-gem-docs
Created
May 10, 2013 18:01
Don't install Ruby gem docs while installing gems
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| echo "gem: --no-ri --no-rdoc" >> ~/.gemrc |
shunchu
/ pg.rake
Created
July 8, 2012 10:25
— forked from royratcliffe/pg.rake
Rake task to dump PostgreSQL structure using a compatible pg_dump
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| namespace :pg do | |
| namespace :structure do | |
| # Does exactly the same as db:structure:dump but with one important | |
| # difference. It tries to use a compatible version of pg_dump. If you see | |
| # the following error message, use pg:structure:dump instead. | |
| # | |
| # pg_dump: server version: 9.1.0; pg_dump version: 9.0.4 | |
| # pg_dump: aborting because of server version mismatch | |
| # rake aborted! | |
| # Error dumping database |
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