Git aliases autocomplete

.bash_aliases.git

__linux_git_complete_file=/usr/share/bash-completion/completions/git
__windows_git_complete_file=/etc/bash_completion.git
__host_os_type=$(uname -sm)

case ${__host_os_type:0:5} in
    Linux)
        __current_git_complete_file=$__linux_git_complete_file
        ;;
    MINGW)
        __current_git_complete_file=$__windows_git_complete_file
        ;;
    *)
        echo "Warning: .bash_alias.git unknow host os type !"
        ;;
esac

test -e $__current_git_complete_file && source $__current_git_complete_file

unset __host_os_type
unset __linux_git_complete_file
unset __windows_git_complete_file
unset __current_git_complete_file

# Aliases
alias g='git'
alias gst='git status'
alias gd='git diff'
alias gdc='git diff --cached'
alias gl='git pull'
alias gup='git pull --rebase'
alias gp='git push'
alias gc='git commit -v'
alias gc!='git commit -v --amend'
alias gca='git commit -v -a'
alias gca!='git commit -v -a --amend'
alias gcmsg='git commit -m'
alias gco='git checkout'
alias gcm='git checkout master'
alias gr='git remote'
alias grv='git remote -v'
alias grmv='git remote rename'
alias grrm='git remote remove'
alias grset='git remote set-url'
alias grup='git remote update'
alias grbi='git rebase -i'
alias grbc='git rebase --continue'
alias grba='git rebase --abort'
alias gb='git branch'
alias gba='git branch -a'
alias gcount='git shortlog -sn'
alias gcl='git config --list'
alias gcp='git cherry-pick'
alias glg='git log --stat --max-count=10'
alias glgg='git log --graph --max-count=10'
alias glgga='git log --graph --decorate --all'
alias glo='git log --oneline --decorate --color'
alias glog='git log --oneline --decorate --color --graph'
alias gss='git status -s'
alias ga='git add'
alias gm='git merge'
alias grh='git reset HEAD'
alias grhh='git reset HEAD --hard'
alias gclean='git reset --hard && git clean -dfx'
alias gwc='git whatchanged -p --abbrev-commit --pretty=medium'

#remove the gf alias
#alias gf='git ls-files | grep'

alias gpoat='git push origin --all && git push origin --tags'
alias gmt='git mergetool --no-prompt'

alias gg='git gui citool'
alias gga='git gui citool --amend'
alias gk='gitk --all --branches'

alias gsts='git stash show --text'
alias gsta='git stash'
alias gstp='git stash pop'
alias gstd='git stash drop'

# Will cd into the top of the current repository
# or submodule.
alias grt='cd $(git rev-parse --show-toplevel || echo ".")'

# Git and svn mix
alias git-svn-dcommit-push='git svn dcommit && git push github master:svntrunk'

alias gsr='git svn rebase'
alias gsd='git svn dcommit'
#
# Will return the current branch name
# Usage example: git pull origin $(current_branch)
#
function current_branch() {
  ref=$(git symbolic-ref HEAD 2> /dev/null) || \
  ref=$(git rev-parse --short HEAD 2> /dev/null) || return
  echo ${ref#refs/heads/}
}

function current_repository() {
  ref=$(git symbolic-ref HEAD 2> /dev/null) || \
  ref=$(git rev-parse --short HEAD 2> /dev/null) || return
  echo $(git remote -v | cut -d':' -f 2)
}

# these aliases take advantage of the previous function
alias ggpull='git pull origin $(current_branch)'
alias ggpur='git pull --rebase origin $(current_branch)'
alias ggpush='git push origin $(current_branch)'
alias ggpnp='git pull origin $(current_branch) && git push origin $(current_branch)'

# these alias ignore changes to file
alias gignore='git update-index --assume-unchanged'
alias gunignore='git update-index --no-assume-unchanged'
# list temporarily ignored files
alias gignored='git ls-files -v | grep "^[[:lower:]]"'

# Git Aliases AutoComplete
type __git_complete >/dev/null 2>&1 && {
    __git_complete   g        _git
    __git_complete   gd       _git_diff
    __git_complete   gdc      _git_diff
    __git_complete   gl       _git_pull
    __git_complete   gup      _git_pull
    __git_complete   gp       _git_push
    __git_complete   gc       _git_commit
    __git_complete   gc!      _git_commit
    __git_complete   gca      _git_commit
    __git_complete   gca!     _git_commit
    __git_complete   gcmsg    _git_commit
    __git_complete   gco      _git_checkout
    __git_complete   gcm      _git_checkout
    __git_complete   gr       _git_remote
    __git_complete   grv      _git_remote
    __git_complete   grmv     _git_remote
    __git_complete   grrm     _git_remote
    __git_complete   grset    _git_remote
    __git_complete   grup     _git_remote
    __git_complete   grbi     _git_rebase
    __git_complete   grbc     _git_rebase
    __git_complete   grba     _git_rebase
    __git_complete   gb       _git_branch
    __git_complete   gba      _git_branch
    __git_complete   gcount   _git_shortlog
    __git_complete   gcl      _git_config
    __git_complete   gcp      _git_cherry_pick
    __git_complete   glg      _git_log
    __git_complete   glgg     _git_log
    __git_complete   glgga    _git_log
    __git_complete   glo      _git_log
    __git_complete   glog     _git_log
    __git_complete   gss      _git_log
    __git_complete   ga       _git_add
    __git_complete   gm       _git_merge
    __git_complete   grh      _git_reset
    __git_complete   grhh     _git_reset
    __git_complete   gwc      _git_whatchanged
    __git_complete   gmt      _git_mergetool
    __git_complete   gk       _gitk
    __git_complete   gsts     _git_stash
    __git_complete   gsta     _git_stash
    __git_complete   gstp     _git_stash
    __git_complete   gstd     _git_stash
    __git_complete   gsr      _git_svn
    __git_complete   gsd      _git_svn
}

Regarding the git complete for all the other aliases, I didn't need those bits.

Rather than shell aliases, I use git aliases in the git config. Which allows me to get tab auto-completion.

e.g. I have git co in .gitconfig aliased as git checkout, rather than say gco. And pressing tab shows branch names.

And this setup even works now as g co + tab.