gistfile1.sh

# Add this to .profile or .bash_profile
#
# Or the cool way:
# cd ~/ && git clone git://gist.github.com/114160.git .githelper && echo "# Add me to your .profile or .bash_profile.  Save the file, open a new terminal, and you'll have all of this." && echo "" && echo "source ~/.githelper/gistfile1.sh"
#
# - When inside a git working directory, modifies prompt to be (git)$wd[$branch]/
# - Adds a number of short hand aliases, ie pull instead of git pull, k instead of gitk
# - Adds one command calls for making new branches, deleting branches
# - Adds one command call for freebasing (fetch and rebase)
# - And a few other nuggets
#
# Modified from http://pastie.org/230805
# See also http://www.simplisticcomplexity.com/2008/03/13/show-your-git-branch-name-in-your-prompt/
_bold=$(tput bold)
_normal=$(tput sgr0)

## Freebase
# Fetch and rebase the current branch
function __freebase {
    echo "Freebasing branch: $1";
    echo "Fetching latest updates.";
    echo "--------------";
    git fetch;
    echo "Rebasing changes....";
    echo "--------------";
    git rebase remotes/origin/$1;
    echo "--------------";
    echo "Freebase Complete";
}

function __push {
    echo "Pushing to remote branch: $1";
    git push origin $1;
    echo "Push Complete";
}

## Make branch
function __makeBranch {
    if [ $# != 2 ]; then
        echo "Name for new Branch: "
        read NEWBRANCHNAME
    else
        NEWBRANCHNAME=$2
    fi
    echo "Creating new branch $NEWBRANCHNAME from current branch $1";
    echo "---------------";
    echo "Making sure you re all up to date first";
    echo "---------------";
    __freebase $1
    echo "Creating new branch";
    git checkout -b $NEWBRANCHNAME;
    echo "Finished creating new branch $NEWBRANCHNAME";
}
## Delete a Branch
function __deleteBranch {
    if [ $# != 2 ]; then
        echo "Branch to Delete:"
        read BRANCHNAME
    else
        BRANCHNAME=$2
    fi

    if [ "$BRANCHNAME" = "master" ]; then
        echo "You shouldnt be deleting master."
        echo "If you really want to, then you know what youre doing and you should just be using the real command.";
        exit 1;
    fi
    if [ "$BRANCHNAME" = "$1" ]; then
        echo "You cannot delete this branch while you have it checked out.";
        echo -n "Do you want to checkout master so you can delete $BRANCHNAME? (y or n) :";
        read C
        if [ "$C" = "y" ]; then
            git checkout master;
        else
            echo "You should have listened!";
            exit 1;
        fi
    fi
    echo -n "Are you sure you want to delete the branch $BRANCHNAME (y or n) :"
    read CONFIRM
     if [ "$CONFIRM" = "y" ]; then
         echo "Deleting branch $BRANCHNAME";
        git branch -D $BRANCHNAME;
        echo "$BRANCHNAME has been deleted locally";

        echo -n "Delete remote of $BRANCHNAME as well? (y or n) :"
        read CONFIRM_REMOTE
        if [ "$CONFIRM_REMOTE" = "y" ]; then
            git push origin :$BRANCHNAME;
        fi
     fi
}

function __add {
    if [ $# = 0 ]; then
        echo "usage: add [minutes] (add all untracked files modified in the last minute)";
        echo "usage: add [minutes] c (add all untracked files modified in the last minute) and commit all";
        echo "usage: add [paths]";
        exit 1;
    fi

    REGEX='^[0-9]+$';
    if [[ ${1} =~ ${REGEX} ]]; then
        python ~/git_add_recent.py $1;
        if [ $2 = "c" ]; then
            echo "Committing...";
            git commit -a;
        fi;
    else
        git add $@;
    fi;
}

__vcs_dir() {
    local vcs base_dir sub_dir ref
    git_dir() {
        base_dir=$(git rev-parse --show-cdup 2>/dev/null) || return 1
        if [ -n "$base_dir" ]; then
            base_dir=`cd $base_dir; pwd`
        else
            base_dir=$PWD
        fi
        sub_dir=$(git rev-parse --show-prefix)
        sub_dir="/${sub_dir%/}"
        ref=$(git symbolic-ref -q HEAD || git name-rev --name-only HEAD 2>/dev/null)
        ref=${ref#refs/heads/}
        vcs="git"
        base_dir="$(basename "${base_dir}")"

        alias pull="__freebase $ref";
        alias commit="git commit";
        alias save="git commit";

        alias push="__push $ref"
        alias revert="git checkout"
        alias checkout="git checkout"
        alias status="git status"
        alias diff="git diff"
        alias s="git status";
        alias d="git diff";
        alias a="__add";
        alias c="git commit -a";
        alias p="__push $ref"
        alias fp="__freebase $ref && __push $ref";

        alias whatamipushing="gitk $ref &";
        alias remotediff="echo $ref && git fetch && git diff HEAD..origin/$ref";

        # Freebase the current branch, aka never try and rebase on the wrong branch again
        # usage: freebase
        alias freebase="__freebase $ref";
        alias f="__freebase $ref";
        alias update="git stash;__freebase $ref;git stash apply;";


        # Name of current branch
        alias branch="echo Currently on Branch: $ref";

        # Create a new branch
        # usage: newbranch Awesomeness
        # usage: newbranch (will prompt for new branch name)
        alias newbranch="__makeBranch $ref";

        # Delete a branch
        # If you try and delete the branch you currently have checked out,
        # Will warn and prompt to checkout master, instead of just dying.
        # usage: deletebranch Awesomeness
        # usage: deletebranch (will prompt for branch name to delete)
        alias deletebranch="__deleteBranch $ref";

        # List all local branches
        alias list="echo All Local Branches; git branch;";

        # List all local and remote branches
        alias listall="echo All Local and Remote Branches; git branch -a;";

        # Gitk with last 100 changes on all branches
        alias k="gitk --max-count=100 --all &";

        # Gitk with all changes on all branches
        alias kall="gitk --all &";

        alias add="__add";
        alias ignore="echo $* >> .gitignore";
    }


    git_dir

    if [ -n "$vcs" ]; then
        __vcs_prefix="($vcs)"
        __vcs_base_dir="${base_dir/$HOME/~}"
        __vcs_ref="[$ref]"
        __vcs_sub_dir="${sub_dir}"
        PS1='${__vcs_ref} \[${_bold}\]${__vcs_base_dir}${__vcs_sub_dir}\[${_normal}\] ';
        # \[${_bold}\]
    else
        unalias st 2> /dev/null
        unalias d 2> /dev/null
        unalias up 2> /dev/null
        unalias pull 2> /dev/null
        unalias commit 2> /dev/null
        unalias push 2> /dev/null
        unalias revert 2> /dev/null
        unalias status 2> /dev/null
        unalias branch 2> /dev/null
        unalias newbranch 2> /dev/null
        unalias deletebranch 2> /dev/null
        unalias list 2> /dev/null
        unalias listall 2> /dev/null
        unalias k 2> /dev/null
        unalias kall 2> /dev/null
        unalias d 2> /dev/null
        unalias checkout 2> /dev/null
        unalias s 2> /dev/null
        unalias add 2> /dev/null
        unalias a 2> /dev/null
        unalias c 2> /dev/null
        unalias diff 2> /dev/null

        __vcs_prefix=''
        __vcs_base_dir_temp=`basename "$PWD"`
        if [ "$PWD" == "$HOME" ]; then
            __vcs_base_dir="~"
        else
            __vcs_base_dir="`basename "$PWD"`"
        fi
        __vcs_ref=''
        __vcs_sub_dir=''
  fi
}

PROMPT_COMMAND=__vcs_dir