raym’s gists

raym / followScroll.js

Last active August 29, 2015 14:07

javascript for having a sidebar element follow you as you scroll -- behavior modeled after facebook sidebar

	var wrapperId = 'sidebarWrapperIdOnPage';

	var
	$w = $(window),
	$wrap = $('#'+wrapperId),
	followerInitialOffset = $wrap.offset().top,
	marginTop = 0,
	$wrap, windowTop, windowBottom, followerHeight,
	followerTop, followerBottom, followerBottomPosition
	;

raym / browerDetect.js

Last active August 29, 2015 14:08

Browser detection

	var
	is_chrome = navigator.userAgent.indexOf('Chrome') > -1,
	is_safari = navigator.userAgent.indexOf("Safari") > -1 && !is_chrome,
	is_firefox = navigator.userAgent.indexOf('Firefox') > -1,
	is_explorer = (navigator.userAgent.indexOf('MSIE') !== -1 \|\| navigator.appVersion.indexOf('Trident/') > 0),
	is_opera = navigator.userAgent.indexOf("Presto") > -1
	;

raym / selectionDirection.js

Created November 6, 2014 04:47

Determine direction currently selected text was selected (rtl vs ltr)

	var selectionIsRTL = function(sel) {
	sel = sel \|\| document.getSelection();
	position = sel.anchorNode.compareDocumentPosition(sel.focusNode);
	return (
	// nodes are same if position === 0
	// selection direction is RTL if anchorOffset > focusOffset
	!position && sel.anchorOffset > sel.focusOffset \|\|
	// focus preceeds anchor
	position === Node.DOCUMENT_POSITION_PRECEDING
	)

raym / synchsafe.js

Last active February 27, 2024 07:40

synchsafe conversion functions

	/*
	Synchsafe integers are used in ID3 tags
	http://id3.org/id3v2.4.0-structure (6.2)
	https://en.wikipedia.org/wiki/Synchsafe

	The why of synchsafe:
	http://stackoverflow.com/a/5652842

	Example:
	255 (%11111111) encoded as a 16 bit synchsafe integer is 383 (%00000001 01111111).

raym / cherry_pick_commits_commands

Created February 6, 2015 01:44

commands run to move the last 4 commits to a different branch via cherry pick

	git log -4 \| grep 'commit' \| awk '{print $2}' \| tail -r > commits.txt
	git co destination_branch
	for commit in $(cat commits.txt); do git cherry-pick $commit; done
	git log -4

raym / i_think_mogrify_am.sh

Last active August 29, 2015 14:15

sweet imagemagick uses

	# convert all png's in a directory to jpg
	mogrify -format jpg *.png

raym / ubuntu_free_boot_space.sh

Last active August 29, 2015 14:16

for when ubuntu /boot needs more space because it's filled with old images

	# you're in a dark room, it's 2 am, and you're
	# updating ubuntu via Software Updater, when you get the error:
	# Not enough free disk space on disk '/boot'
	# what do you do? try this:

	# edit: it seems like this one command accomplishes the same thing as the rest, and removes even more unneeded packages
	audo apt-get autoremove

	# if that doesn't work for some reason, try the original gist revision's steps:
	uname -r

raym / anandroidfilenameconventionconverter.sh

Created March 29, 2015 20:02

mv all files in a directory with a particular extension -- remove dashes, underscores, spaces, dots (add more if you like) and lowercase the filename

	#!/bin/bash

	ext=.png

	for file in *$ext; do
	baseName=${file%$ext}
	baseNoDashes=$(echo $baseName \| tr -d '_- .')
	baseLower=$(echo $baseNoDashes \| tr '[:upper:]' '[:lower:]')
	fileNew=$baseLower$ext
	echo Renaming $file to $fileNew

raym / bcrypt_fix.sh

Created March 30, 2015 00:20

upstart meteor node npm bcrypt invalid elf header fix

	#!/bin/bash

	# if when looking in /var/log/upstart/yourapp.log, you find the error:

	# Error: /home/yourapp/bundle/programs/server/npm/npm-bcrypt/node_modules/bcrypt/build/Release/bcrypt_lib.node: invalid ELF header
	# at Error (native)
	# at Module.load (module.js:355:32)
	# at Function.Module._load (module.js:310:12)
	# at Module.require (module.js:365:17)
	# at require (module.js:384:17)

raym / rename_remote_branch.sh

Created April 5, 2015 18:42

rename a branch that you've pushed to a remote