up.sh

#!/usr/bin/env bash

set -

export UPDATED_YES=✅
export UPDATED_NO=❌
export DIRTY_YES=🐷
export DIRTY_NO=✨

export REPO_TRUNCATE_CHARS=32

update_repo() {
    REPO="$1"
    UPDATED="$UPDATED_YES"
    DIRTY="$DIRTY_NO"

    cd "$REPO" || exit

    REPO_TRUNCATED="$(echo "$REPO" | awk -v len="${REPO_TRUNCATE_CHARS}" '{ if(length($0) > len) print substr($0, 1, len) "…"; else print; }')"
    BRANCH="$(git branch --show-current)"

    git fetch --quiet

    if [[ -n $(git status --porcelain) ]]; then
        DIRTY="$DIRTY_YES"
    fi

    if [[ "$BRANCH" =~ ^(main|master)$ && "$DIRTY" = "$DIRTY_NO" ]]; then
        GIT_LOG_FILE="$(mktemp)"
        git log --pretty=tformat:'%C(yellow)%>(16)%h %Cred%ad %Cblue%an%Cgreen%d %Creset%s' --date=short --no-merges "${BRANCH}...origin/${BRANCH}" > "$GIT_LOG_FILE"
        git pull --quiet --ff-only
    else
       UPDATED="$UPDATED_NO" 
    fi

    printf "%7s | %$((REPO_TRUNCATE_CHARS+1))s | %7s | %s\n" "$UPDATED" "$REPO_TRUNCATED" "$DIRTY" "$BRANCH"
    test -f "$GIT_LOG_FILE" && { cat "$GIT_LOG_FILE"; rm -f "$GIT_LOG_FILE"; }
}
export -f update_repo

printf "Pulled | %$((REPO_TRUNCATE_CHARS+1))s | Dirty? | Branch\n" "Project"
printf -- '-%.0s' {1..60}; printf '\n'

find . \
    -maxdepth 1 \
    -mindepth 1 \
    -type d \
    -not -path '*/.*' \
    -printf '%f\0' \
| sort -z \
| parallel -0 --jobs 8 --keep-order 'update_repo {}'