Update Git Repos

update-git-repos.sh

#!/bin/bash
set -euo pipefail

GIT_DIR="$HOME/git-pulls"

update_repo() {
    echo "Updating $1..."
    
    cd "$1"
    current_branch=$(git rev-parse --abbrev-ref HEAD)
    default_branch=$(git remote show origin | sed -n '/HEAD branch/s/.*: //p')

    if [ "$current_branch" != "$default_branch" ]; then
        echo "Warning: Not on default branch ($default_branch) in $1. Skipping."
        return 0
    fi

    if git remote | grep -q "^upstream$"; then
        echo "Updating from upstream in $1..."
        git fetch upstream "$default_branch"
        git merge --ff-only "upstream/$default_branch"
    else
        echo "No upstream found. Updating from origin in $1..."
        git fetch origin "$default_branch"
        git merge --ff-only "origin/$default_branch"
    fi

    echo "Successfully updated $1"
}

if [ ! -d "$GIT_DIR" ]; then
    echo "Error: Directory $GIT_DIR does not exist." >&2
    exit 1
fi

for repo in "$GIT_DIR"/*; do
    if [ -d "$repo/.git" ]; then
        update_repo "$repo"
    fi
done

echo "All repositories processed."