tmux2k/scripts/git.sh

#!/usr/bin/env bash

current_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
source "$current_dir"/utils.sh

IFS=' ' read -r -a hide_status <<<$(get_tmux_option "@tmux2k-git-disable-status" "false")
IFS=' ' read -r -a current_symbol <<<$(get_tmux_option "@tmux2k-git-show-current-symbol" "")
IFS=' ' read -r -a diff_symbol <<<$(get_tmux_option "@tmux2k-git-show-diff-symbol" "")
IFS=' ' read -r -a no_repo_message <<<$(get_tmux_option "@tmux2k-git-no-repo-message" "")

# Get added, modified, updated and deleted files from git status
getChanges() {
    declare -i added=0
    declare -i modified=0
    declare -i updated=0
    declare -i deleted=0

    for i in $(git -C "$path" status -s); do
        case $i in
        'A')
            added+=1
            ;;
        'M')
            modified+=1
            ;;
        'U')
            updated+=1
            ;;
        'D')
            deleted+=1
            ;;

        esac
    done

    output=""
    [ $added -gt 0 ] && output+="${added} "
    [ $modified -gt 0 ] && output+=" ${modified} "
    [ $updated -gt 0 ] && output+=" ${updated} "
    [ $deleted -gt 0 ] && output+=" ${deleted} "

    echo "$output"
}

# getting the #{pane_current_path} from tmux2k.sh is no longer possible
getPaneDir() {
    nextone="false"
    for i in $(tmux list-panes -F "#{pane_active} #{pane_current_path}"); do
        if [ "$nextone" == "true" ]; then
            echo "$i"
            return
        fi
        if [ "$i" == "1" ]; then
            nextone="true"
        fi
    done
}

# check if the current or diff symbol is empty to remove ugly padding
checkEmptySymbol() {
    symbol=$1
    if [ "$symbol" == "" ]; then
        echo "true"
    else
        echo "false"
    fi
}

# check to see if the current repo is not up to date with HEAD
checkForChanges() {
    if [ "$(checkForGitDir)" == "true" ]; then
        if [ "$(git -C "$path" status -s)" != "" ]; then
            echo "true"
        else
            echo "false"
        fi
    else
        echo "false"
    fi
}

# check if a git repo exists in the directory
checkForGitDir() {
    if [ "$(git -C "$path" rev-parse --abbrev-ref HEAD)" != "" ]; then
        echo "true"
    else
        echo "false"
    fi
}

# return branch name if there is one
getBranch() {
    if [ $(checkForGitDir) == "true" ]; then
        printf "%.20s " $(git -C "$path" rev-parse --abbrev-ref HEAD)
    else
        echo "$no_repo_message"
    fi
}

# return the final message for the status bar
getMessage() {
    if [ $(checkForGitDir) == "true" ]; then
        branch="$(getBranch)"

        if [ $(checkForChanges) == "true" ]; then

            changes="$(getChanges)"

            if [ "${hide_status}" == "false" ]; then
                if [ $(checkEmptySymbol "$diff_symbol") == "true" ]; then
                    echo "${changes} $branch"
                else
                    echo "$diff_symbol ${changes} $branch"
                fi
            else
                if [ $(checkEmptySymbol "$diff_symbol") == "true" ]; then
                    echo "$branch"
                else
                    echo "$diff_symbol $branch"
                fi
            fi

        else
            if [ $(checkEmptySymbol "$current_symbol") == "true" ]; then
                echo "$branch"
            else
                echo "$current_symbol $branch"
            fi
        fi
    else
        echo "$no_repo_message"
    fi
}

main() {
    path=$(getPaneDir)
    getMessage
}

#run main driver program
main