Auto Pull List of Repos defined in a text file

pull_repos.sh

#!/bin/bash

# Define the host alias
host_alias="github.com" # host alias as defined in .ssh/config
branch_name="latest" # name of the working branch
group_name="any" # name of the user or corp or group

# Assuming the text file is named repos.txt and is located in the current directory
while IFS= read -r repo
do
  # Extract the repo name
  repo_name=$(basename "$repo" .git)

  # Check if the repo already exists
  if [ -d "$repo_name" ]; then
    # If the repo exists, update it
    echo "Updating $repo_name"
    cd "$repo_name"
    git pull
    cd ..
    timestamp=$(date +%s)
    echo "$timestamp: $repo_name was updated " >> log.txt
  else
    # If the repo doesn't exist, clone it
    echo "Cloning $repo_name"
    git clone "$host_alias:$group_name/$repo"
    timestamp=$(date +%s)
    echo "$timestamp: $repo_name was cloned " >> log.txt
  fi
done < repos.txt

while IFS= read -r repo
do
  # Extract the repo name
  repo_name=$(basename "$repo" .git)

  # Check if the repo exists
  if [ -d "$repo_name" ]; then
    # If the repo exists, update it
    echo "Switching $repo_name Branch to $branch_name "
    cd "$repo_name"
    git checkout $branch_name
    cd ..
    timestamp=$(date +%s)
    echo "$timestamp: $repo_name was switched to branch $branch_name " >> log.txt
  else
    # If the branch doesn't exist, announce it
    echo "No such branch: $branch_name"
    timestamp=$(date +%s)
    echo "$timestamp: $repo_name has no branch $branch_name " >> log.txt
  fi
done < repos.txt