My environment

create_env.bash

#!/bin/bash

# To use just run following command in shell:
#    wget -O - https://gist.githubusercontent.com/katyukha/5c5db1216f9a9f6f41d9b0361822f7fe/raw/create_env.bash | bash -s

# install vim config (if it is not installed yet)
if [ ! -d $HOME/.vim ]; then
    CURRENT_DIR=$(pwd);
    cd $HOME;
    git clone https://github.com/katyukha/.vim.git .vim;
    ln -sf .vim/.vimrc .vimrc;
    cd .vim/;
    git submodule init;
    git submodule update;
    cd $CURRENT_DIR;
fi

# generate .gitconfig
cat > $HOME/.gitconfig << EOF
[alias]
    co    = "checkout"
    ci    = "commit"
    st    = "status"
    br    = "branch"
    glog  = "log --graph --color --decorate"         # log in graph form
    slog  = "log --stat --color --decorate"          # log that displays stat
    sglog = "log --stat --graph --color --decorate"  # log with stat in graph mode
    cdiff = "diff --color"                           # colored diff

    lsbra = "branch -a --color"                      # list all branches, even remote ones
    lsbr  = "branch --color"

    # remove branch named after it, e.g. git rmbr upgrading_rails
    rmbr = "branch -d"

    # rename branch from one name to another
    mvbr = "branch -m"
    lstag = "tag -l"

    # create a new tag based on specified commit
    mktag = "tag -a"

    # remove existing tag by name
    rmtag = "tag -d"

    # rename tag from one name to another
    mvtag = "tag -m"

    cshow = "show --color"
EOF

if [ ! -d "$HOME/.bash/git-aware-prompt" ]; then
    mkdir "$HOME/.bash";
    git clone git://github.com/jimeh/git-aware-prompt.git "$HOME/.bash/git-aware-prompt";
    
    echo '' >> $HOME/.bashrc;
    echo '# Enabled colord git-aware prompt' >> $HOME/.bashrc;
    echo 'export GITAWAREPROMPT=$HOME/.bash/git-aware-prompt' >> $HOME/.bashrc; 
    echo 'source "${GITAWAREPROMPT}/main.sh"' >> $HOME/.bashrc;
    echo 'export PS1="\${debian_chroot:+(\$debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\] \[$txtcyn\]\$git_branch\[$txtred\]\$git_dirty\[$txtrst\]\$ "' >> $HOME/.bashrc;

fi