Executes a given command recursively on every git repository found under a given directory.

git-recursive.sh

#!/usr/bin/env bash
# -*- coding: utf-8 -*-

###
# git-recursive
#
# This script will execute a given command recursively on every git repository
# found under the current directory.
#
# Copyright 2022 Abdul Rahman Dabbour
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
###

BYellow='\033[1;33m'
Color_Off='\033[0m'

usage="$(basename "$0") [-h] [-c COMMAND] [-d DIRECTORY] -- execute a command on every git repo found recursively

where:
    -h  show this help text
    -c  command to execute (default: 'git status')
    -d  directory (default: current directory)"

CMD="git status"
REQUESTED_DIR="$(pwd)"

while getopts hd:c: o; do
    case "$o" in
    h)
        echo "$usage" 1>&2
        exit 0
        ;;
    d) REQUESTED_DIR="$OPTARG" ;;
    c) CMD="$OPTARG" ;;
    [?])
        echo "$usage" 1>&2
        exit 1
        ;;
    esac
done
shift $((OPTIND-1))

start_dir=$(pwd)

# set the arguments
REQUESTED_DIR=$(realpath "$REQUESTED_DIR")

cd "$REQUESTED_DIR" || exit 1

# get all the .git paths and store them in a temp file
tempfile="tempfile""$(date +%Y%m%d%H%M%S%N)"
find . -path '*/.git/config' -execdir pwd \; >"$tempfile"

echo -e "${BYellow}will execute \"${CMD}\" in every git repo found under ${REQUESTED_DIR} in 3 seconds${Color_Off}"
echo -e "${BYellow}3...${Color_Off}"
sleep 1
echo -e "${BYellow}2...${Color_Off}"
sleep 1
echo -e "${BYellow}1...${Color_Off}"
sleep 1

# go through each .git path
while IFS="" read -r p || [ -n "$p" ]; do

    cd "$(dirname "$p")" || exit
    echo -e "${BYellow}currently in: $(dirname "$p")${Color_Off}"

    $CMD

    cd "$REQUESTED_DIR" || exit

done <"$tempfile"

rm "$tempfile"

cd "$start_dir" || exit