# finds .git folder
__git_ps1_repo_path() {
    if [ -d .git ]; then
        echo "$(pwd)/.git"
    else
        git rev-parse --git-dir 2>/dev/null
    fi
}

# repo name
__git_ps1_repo_name() {
    basename $(basename $(__git_ps1_repo_path))
}

# head being merged
__git_ps1_rebase_merge_head() {
    cat "$1/rebase-merge/head-name"
}

# branch name
__git_ps1_branch() {
    git symbolic-ref HEAD 2>/dev/null || {
    case "${GIT_PS1_DESCRIBE_STYLE-}" in
        (contains)
            git describe --contains HEAD ;;
        (branch)
            git describe --contains --all HEAD ;;
        (describe)
            git describe HEAD ;;
        (* | default)
            git describe --exact-match HEAD ;;
    esac 2>/dev/null ||

        cut -c1-7 "$g/HEAD" 2>/dev/null || # TODO: this had dots ...
        echo "unknown"
    }
    # TODO: strip refs/heads
}

__git_ps1_vars() {
    #local g="$(__gitdir)"
    local g=".git"
    [[ -z "$g" ]] && return

    local rebase=0
    local interactive=0
    local apply=0
    local merge=0
    local bisect=0
    local subject=""
    local branch=""
    local gitdir=0
    local bare=0
    local work=1

    if [[ -d "$g/rebase-merge" ]]; then rebase=1 merge=1 subject=$(__git_ps1_rebase_merge_head); fi
    if [[ $rebase -eq 1 && -f "$g/rebase-merge/interactive" ]]; then interactive=1 merge=0; fi
    if [[ -d "$g/rebase-apply" ]]; then rebase=1 apply=1; fi
    if [[ $apply  -eq 1 && -f "$g/rebase-apply/applying" ]]; then rebase=0; fi
    if [[ $apply  -eq 1 && -f "$g/rebase-apply/rebasing" ]]; then apply=0; fi
    if [[ $rebase -eq 0 && -f "$g/MERGE_HEAD" ]]; then merge=1; fi
    if [[ $rebase -eq 0 && -f "$g/BISECT_LOG" ]]; then bisect=1; fi

    #branch=$(__git_ps1_branch)

    [[ "true" = "$(git rev-parse --is-inside-git-dir 2>/dev/null)" ]] && gitdir=1
    [[ $gitdir -eq 1 && "true" = "$(git rev-parse --is-bare-repository 2>/dev/null)" ]] && bare=1
    [[ $gitdir -eq 0 && "true" = "$(git rev-parse --is-inside-work-tree 2>/dev/null)" ]] && work=1

    if [[ $work -eq 1 ]]; then
        ##dirty
        #if [ "$(git config --bool bash.showDirtyState)" != "false" ]; then
        #    git diff --no-ext-diff --ignore-submodules \
        #        --quiet --exit-code || w="*"
        #    if git rev-parse --quiet --verify HEAD >/dev/null; then
        #        git diff-index --cached --quiet \
        #            --ignore-submodules HEAD -- || i="+"
        #    else
        #        i="#"
        #    fi
        #fi

        ##stash
        #git rev-parse --verify refs/stash >/dev/null 2>&1 && s="$"

        ##untracked
        #if [ -n "$(git ls-files --others --exclude-standard)" ]; then
        #    u="%"
        #fi
    fi
}

# vim: ft=sh