Determine whether subdirectories containing git repos are dirty or diverged

scan.sh

#!/bin/bash

function git_is_dirty {
    [[ $(git diff --shortstat 2> /dev/null | tail -n1) != "" ]] && echo "yes"
}

function git_is_diverged {
    LOCAL=$(git rev-parse --abbrev-ref HEAD 2> /dev/null || echo "none")
    REMOTE=$(git rev-parse --abbrev-ref --symbolic-full-name @{u} 2> /dev/null || echo "none")
    if [[ "$LOCAL" == "none" ]]; then  # No commits yet
        echo "maybe"
        return
    fi
    if [[ "$REMOTE" == "none" ]]; then  # No remote branch
        echo "maybe"
        return
    fi
    if [ -n "$(git log ${REMOTE}..${LOCAL})" ]; then
        echo "yes"
        return
    fi
}

DIRS=$(find . -maxdepth 1 -type d)
for d in $DIRS; do (
    cd $d

    git status > /dev/null 2>&1
    if [ $? -ne 0 ]; then continue; fi

    if [[ "$(git_is_dirty)" == "yes" ]]; then
        echo "$d is dirty"
    fi

    if [[ "$(git_is_diverged)" == "yes" ]]; then
        echo "$d is diverged"
    elif [[ "$(git_is_diverged)" == "maybe" ]]; then
        echo "$d might be diverged"
    fi

)
done