Git merge repositories

Calling this small util will merge many git repositories into a single monorepo.

Features

1. Preserve git history
2. Read repositories list from a cli option or from stdin
3. Merge all repositories into a subfolder from the git root

Examples

You have 2 ways of entering repositories: with a --repos option or with stdin.

Pass repository list as an option

npx git-merge-repositories merge -m core -p packages --reset
-dir --repos [email protected]:adamgen/repo1.git [email protected]:adamgen/repo2.git

Pass repository list from stdin

Make a repos.txt file with similar contents

# Whitespace is ignored

# A repo start from the single character and has no trailing zeros
[email protected]:adamgen/adamgen-blog.git
[email protected]:adamgen/website.git

# Comments are optional
#[email protected]:zixi-dev/monitor.git
#[email protected]:zixi-dev/new-front.git
#[email protected]:zixi-dev/back.git
#[email protected]:zixi-dev/orchestrator.git

Then run this command:

cat repos.txt | npx git-merge-repositories merge -m core -p packages --reset-dir

Options

Copy-pasted from running npx git-merge-repositories merge --help

-m, --monorepo-dir [string] Destination directory that will contain the
monorepo's git root. This directory will be deleted
and re-initiated when wetting --reset-dir

-r, --repos [string...] Repository url. You must either provide this, or pass
stdin with valid repos.

-p, --packages-dir [string] Packages/projects dir. Similar to lerna's packages
directory

-y, --yes Without this option you will be asked to approve
after presented a list or the repositories to be
merged. Note - using stdin will never prompt a dialog

--reset-dir Clear the destination directory before running. Very
useful for debugging.

-h, --help display help for command

Architecture

It's a small side project, yet some thinking was made when working on it.

The lib/steps directory containes the actions done on the file system & git.

The lib/helpers directory has all other utilities that don't directly interact with the file system and can be called many times if needed.