digitaljhelms

Gource

Gource is a software version control visualization tool.

Software projects are displayed by Gource as an animated tree with the root directory of the project at its centre. Directories appear as branches with files as leaves. Developers can be seen working on the tree at the times they contributed to the project.

http://code.google.com/p/gource/

Installing Gource Manually (w/out MacPorts or Homebrew)

digitaljhelms

#!/usr/bin/perl
#fetch Gravatars
#http://code.google.com/p/gource/wiki/GravatarExample

use strict;
use warnings;

use LWP::Simple;
use Digest::MD5 qw(md5_hex);

digitaljhelms

git config --global alias.lg "log --graph --pretty=format:'%Cred%h%Creset -%C(yellow)%d%Creset %s %Cgreen(%cr) %C(bold blue)<%an>%Creset' --abbrev-commit --date=relative --all --decorate=full"

digitaljhelms

Output flags returned by git fetch (based on git version 1.7.8):

• - indicates a deleted ref (tag) fetch.c#L281
• * indicates a new ref (tag, branch) fetch.c#L306
• (space) indicates a fast-forward fetch.c#L322
• + indicates a successful forced update fetch.c#L336
• = indicates a ref that was up to date fetch.c#L257
• ! indicates a ref that was rejected fetch.c#L271

*Also note that in fast-forwards, the output contains ".."

digitaljhelms

#oneGoogleWrapper {
	display: none;
}
#headerBar #promo_pack_bar {
	display: none !important;
}
#main #start-page-recommendations-container {
	display: none !important;
}

digitaljhelms

Building and installing Git from source on OS X Lion

This outline for building and installing Git has only been tested against Mac OS X 10.7.x (Lion). While these steps may work for previous versions of Mac OS X, I cannot confirm this. Furthermore, you're on your own, if you screw something up, it's not my fault.

If you have Xcode 4, you have Git!

Xcode 4 includes the Git binary at the application level so it's available to itself (located at /Applications/Xcode.app/Contents/Developer/usr/bin/git). Additionally, Xcode 4 includes a new "Downloads" preference pane to install optional components, one of which are the Command Line Tools (similar to the Dev Tools package that shipped with older versions of Xcode) and once installed, Git (and many other utilities, such as make) is installed at the system level (located at /usr/bin).

*Note: You don't have to install Xcode to use the Command Line Tools; it can be downloaded independently from the Apple Developer site (you need to login, but it's free

digitaljhelms

# bash alias
alias subl='/Applications/Sublime\ Text\ 2.app/Contents/SharedSupport/bin/subl'

# bash function, usage: $ st -p [projectname] -opt2 -opt3
function st() {
  if [ -n "$1" -a -n "$2" ]; then # if more than one argument
    if [ "$1" = "-p" -o "$1" = "--project" ]; then # if arg1 is -p or --project
      local projectfile="$2"
      [[ $projectfile != *.sublime-project ]] && projectfile="$2.sublime-project" # detect if arg2 already includes the ext
      if [ -e $projectfile ]; then # does project file exist?

digitaljhelms

/*
 * When you delete an array element using the delete
 * operator, the array length is not affected. For example
 * if you delete arr[2], arr[3] is still arr[3] and arr[2]
 * is undefined.
 */

arr = ['a', 'b', 'c', 'd']
// ["a", "b", "c", "d"]
delete arr[2]

digitaljhelms

The scenario

Your repository has two commits:

$ git log --oneline
957fbfb No, I am your father.
9bb71ff A long time ago in a galaxy far, far away....

digitaljhelms

[
  {
    "homepage": "http://digitaljhelms.github.com",
    "name": "digitaljhelms",
    "description": "finally blogging...",
    "author": "Jeremy Helms",
    "post": {
      "url": "http://digitaljhelms.github.com/howto/creating-a-branch-with-no-parents-or-history",
      "slug": "creating-a-branch-with-no-parents-or-history",
      "title": "Create a Git Branch without Parents or History",