Shell Script for update git repositories local

updateGit.sh

#!/bin/bash

#------------------------
# Authors: Aecio Pires
# Date: 13 jan 2020
#
# Objective: Update git repositories local
#
#--------------------- REQUISITES --------------------#
#  1) Install packages: git
#
#------------------------


#------------------------
# Local Functions

#--------------------------------------------------------
# comment: Print usage help.
# sintax: usage
#
function usage() {

echo "Script to update git repositories local."
echo "Usage:"
echo
echo "$progpathname dir_git_base"
exit 3
}


#--------------------------------------------------------
# comment: Check if exists command
#
# sintax:
# checkCommand command1 command2 command3
#
# return: 0 is correct or code error
#
# Example:
# checkCommand git kubectl helm
#
function checkCommand() {

local commands="$@"

for command in $commands ; do
    if ! type $command > /dev/null 2>&1; then 
        echo "[ERROR] Command '$command' not found."
        exit 4
    fi
done
}


#--------------------------------------------------------
# comment: Check if a variable is empty
#
# sintax:
# checkVariable name value
#
# return: 0 is correct or code error
#
# Example:
# checkVariable "variable1" "value1"
#
function checkVariable() {

local variable_name="$1"
local value="$2"
local debug="${debug}"

if [ -z $value ] ; then 
    echo "[ERROR] The variable $variable_name is empty."
    exit 3
else
    if [ "$debug" == true ]; then
        echo "[DEBUG] ${variable_name}: ${value}"
    fi
fi
}


#------------------------------------------------------------
# comment: Check if the directory exists.
# syntax: 
#   checkDir DIR
# return: 0 is exists or 1 if not exists
#
function checkDir(){

local dir="$1"

if [ ! -d "$dir" ] ; then 
    echo "[ERROR] Directory '$dir' is not exists."
    exit 4
fi

return 0
}



#------------------------
# Variables
#------------------------

# Variables general of script
progpathname=$BASH_SOURCE
progfilename=$(basename "$progpathname")
progdirname=$(dirname "$progpathname")
debug=true

dir_git_base=$1
#------------------------



#------------------------
# Main
#------------------------

# Checking if has options
if [ $# -eq 0 ]; then
    usage
fi

# Testing if commands exists
checkCommand git find

# Testing if variable is empty
checkVariable dir_git_base "$dir_git_base"

# Testing if directory exists
checkDir "$dir_git_base"

cd "$dir_git_base" > /dev/null 2>&1 ;

list_dir_git_repositories=$(find . -maxdepth 1 -mindepth 1 -type d)

for dir in $list_dir_git_repositories; do
    if [ -d "$dir/.git" ] ; then
        cd $dir > /dev/null 2>&1 ;

        branch_name=$(git symbolic-ref HEAD | cut -d/ -f3-)

        echo "------------- BEGIN -------------"

        if [ "$debug" == true ]; then
            echo "[DEBUG] Directory      => '$dir'"
            echo "[DEBUG] Local branches =>"
            git branch
            echo
        fi

        echo "[INFO] Updating dir: '$dir' in branch '$branch_name'.
        If necessary, enter with login/password."
        git pull
        echo "---------------------------------"
        echo
        echo
        echo

        cd - > /dev/null 2>&1 ;
    else
        echo "[WARNING] Directory '$dir' is not local git repository."
        echo
        echo
        echo
    fi
done