RU - Repo Updater

A comprehensive Bash CLI for synchronizing dozens or hundreds of GitHub repositories. Beyond basic sync, RU includes a full AI-assisted code review system and agent-sweep capability for automatically processing uncommitted changes across your entire projects directory.

Why This Exists

When you work with 47+ repos (personal projects, forks, dependencies), keeping them synchronized manually is tedious. But synchronization is just the beginning—RU also orchestrates AI coding agents to review issues, process PRs, and commit uncommitted work at scale.

The problem it solves:

• Manual cd ~/project && git pull for each repo
• Missing updates that accumulate into merge conflicts
• Dirty repos that never get committed
• Issues and PRs that pile up across repositories
• No coordination for AI agents working across repos

Critical Concepts

Git Plumbing, Not Porcelain

RU uses git plumbing commands exclusively—never parses human-readable output:

# WRONG: Locale-dependent, version-fragile
git pull 2>&1 | grep "Already up to date"

# RIGHT: Machine-readable plumbing
git rev-list --left-right --count HEAD...@{u}
git status --porcelain
git rev-parse HEAD

Stream Separation

Human-readable output goes to stderr; data to stdout:

ru sync --json 2>/dev/null | jq '.summary'
# Progress shows in terminal, JSON pipes to jq

No Global cd

All git operations use git -C. Never changes working directory.

Essential Commands

Sync (Primary Use Case)

# Sync all configured repos
ru sync

# Parallel sync (much faster)
ru sync -j8

# Dry run - see what would happen
ru sync --dry-run

# Resume interrupted sync
ru sync --resume

# JSON output for scripting
ru sync --json 2>/dev/null | jq '.summary'

Status (Read-Only Check)

# Check all repos without modifying
ru status

# JSON output
ru status --json

Repo Management

# Initialize configuration
ru init

# Add repos to sync list
ru add owner/repo
ru add https://github.com/owner/repo
ru add owner/repo@branch as custom-name

# Remove from list
ru remove owner/repo

# List configured repos
ru list

# Detect orphaned repos (in projects dir but not in list)
ru prune           # Preview
ru prune --delete  # Actually remove
ru prune --archive # Move to archive directory

Diagnostics

ru doctor      # System health check
ru self-update # Update ru itself

AI-Assisted Review System

RU includes a powerful review orchestration system for managing AI-assisted code review across your repositories.

Two-Phase Review Workflow

Phase 1: Discovery (--plan)

• Queries GitHub for open issues and PRs across all repos
• Scores items by priority using label analysis and age
• Creates isolated git worktrees for safe review
• Spawns Claude Code sessions in terminal multiplexer

Phase 2: Application (--apply)

• Reviews proposed changes from discovery phase
• Runs quality gates (ShellCheck, tests, lint)
• Optionally pushes approved changes (--push)

# Discover and plan reviews
ru review --plan

# After reviewing AI suggestions
ru review --apply --push

Priority Scoring Algorithm

Factor	Points	Logic
Type	0-20	PRs: +20, Issues: +10, Draft PRs: -15
Labels	0-50	security/critical: +50, bug/urgent: +30
Age (bugs)	0-50	>60 days: +50, >30 days: +30
Recency	0-15	Updated <3 days: +15, <7 days: +10
Staleness	-20	Recently reviewed: -20

Priority levels: CRITICAL (≥150), HIGH (≥100), NORMAL (≥50), LOW (<50)

Session Drivers

Driver	Description	Best For
auto	Auto-detect best available	Default
ntm	Named Tmux Manager integration	Multi-agent workflows
local	Direct tmux sessions	Simple setups

ru review --mode=ntm --plan
ru review -j 4 --plan  # Parallel sessions

Cost Budgets

ru review --max-repos=10 --plan
ru review --max-runtime=30 --plan  # Minutes
ru review --skip-days=14 --plan    # Skip recently reviewed
ru review --analytics              # View past review stats

Agent Sweep (Automated Dirty Repo Processing)

The ru agent-sweep command orchestrates AI coding agents to automatically process repositories with uncommitted changes.

Basic Usage

# Process all repos with uncommitted changes
ru agent-sweep

# Dry run - preview what would be processed
ru agent-sweep --dry-run

# Process 4 repos in parallel
ru agent-sweep -j4

# Filter to specific repos
ru agent-sweep --repos="myproject*"

# Include release step after commit
ru agent-sweep --with-release

# Resume interrupted sweep
ru agent-sweep --resume

# Start fresh
ru agent-sweep --restart

Three-Phase Agent Workflow

Phase 1: Planning (--phase1-timeout, default 300s)

• Claude Code analyzes uncommitted changes
• Determines which files should be staged (respecting denylist)
• Generates structured commit message

Phase 2: Commit (--phase2-timeout, default 600s)

• Validates the plan (file existence, denylist compliance)
• Stages approved files, creates commit
• Runs quality gates
• Optionally pushes to remote

Phase 3: Release (--phase3-timeout, default 300s, requires --with-release)

• Analyzes commit history since last tag
• Determines version bump (patch/minor/major)
• Creates git tag and optionally GitHub release

Execution Modes

--execution-mode=agent  # Full AI-driven workflow (default)
--execution-mode=plan   # Phase 1 only: generate plan, stop
--execution-mode=apply  # Phase 2+3: execute existing plan

Preflight Checks

Each repo is validated before spawning an agent:

Check	Skip Reason
Is git repository	not_a_git_repo
Git email configured	git_email_not_configured
Not a shallow clone	shallow_clone
No rebase in progress	rebase_in_progress
No merge in progress	merge_in_progress
Not detached HEAD	detached_HEAD
Has upstream branch	no_upstream_branch
Not diverged	diverged_from_upstream

Security Guardrails

File Denylist - Never committed regardless of agent output:

Category	Patterns
Secrets	.env, *.pem, *.key, id_rsa*, credentials.json
Build artifacts	node_modules, __pycache__, dist, build, target
Logs/temp	*.log, *.tmp, *.swp, .DS_Store
IDE files	.idea, .vscode, *.iml

Secret Scanning:

--secret-scan=none   # Disable
--secret-scan=warn   # Warn but continue (default)
--secret-scan=block  # Block push on detection

Exit Codes

Code	Meaning
0	All repos processed successfully
1	Some repos failed (agent error, timeout)
2	Quality gate failures (secrets, tests)
3	System error (ntm, tmux missing)
4	Invalid arguments
5	Interrupted (use --resume)

Configuration

XDG-Compliant Directory Structure

~/.config/ru/
├── config               # Main config file
└── repos.d/
    ├── public.list      # Public repos (one per line)
    └── private.list     # Private repos (gitignored)

~/.local/state/ru/
├── logs/
│   └── YYYY-MM-DD/
├── agent-sweep/
│   ├── state.json
│   └── results.ndjson
└── review/
    ├── digests/
    └── results/

Repo List Format

# ~/.config/ru/repos.d/public.list
owner/repo
another-owner/another-repo@develop
private-org/repo@main as local-name
https://github.com/owner/repo.git

Layout Modes

Layout	Example Path
flat	/data/projects/repo
owner-repo	/data/projects/owner_repo
full	/data/projects/github.com/owner/repo

ru config --set LAYOUT=owner-repo

Per-Repo Configuration

# ~/.../your-repo/.ru-agent.yml
agent_sweep:
  enabled: true
  max_file_size: 5242880  # 5MB
  extra_context: "This is a Python project using FastAPI"
  pre_hook: "make lint"
  post_hook: "make test"
  denylist_extra:
    - "*.backup"
    - "internal/*"

ntm Integration

When ntm (Named Tmux Manager) is available, RU uses its robot mode API:

Function	Purpose
ntm --robot-spawn	Create Claude Code session in new tmux pane
ntm --robot-send	Send prompts with chunking for long messages
ntm --robot-wait	Block until session completes with timeout
ntm --robot-activity	Query real-time session state
ntm --robot-status	Get status of all managed sessions
ntm --robot-interrupt	Send Ctrl+C to interrupt long operations

Output Modes

JSON Mode (--json)

ru sync --json 2>/dev/null

{
  "version": "1.2.0",
  "timestamp": "2025-01-03T14:30:00Z",
  "summary": {
    "total": 47,
    "cloned": 8,
    "updated": 34,
    "current": 3,
    "conflicts": 2
  },
  "repos": [...]
}

NDJSON Results Logging

{"repo":"mcp_agent_mail","action":"pull","status":"updated","duration":2}
{"repo":"beads_viewer","action":"clone","status":"cloned","duration":5}

jq Examples

# Get paths of all cloned repos
ru sync --json 2>/dev/null | jq -r '.repos[] | select(.action=="clone") | .path'

# Count by status
cat ~/.local/state/ru/logs/latest/results.ndjson | jq -s 'group_by(.status) | map({status: .[0].status, count: length})'

Update Strategies

ru sync                        # Default: ff-only (safest)
ru sync --rebase               # Rebase local commits
ru sync --autostash            # Auto-stash before pull
ru sync --force                # Force update (use with caution)

Strategy	Behavior
ff-only	Fast-forward only; fails if diverged
rebase	Rebase local commits on top of remote
merge	Create merge commit if needed

Quality Gates

Before applying changes, RU runs automated quality gates:

Auto-detection by project type:

Project Type	Test Command	Lint Command
npm/yarn	npm test	npm run lint
Cargo (Rust)	cargo test	cargo clippy
Go	go test ./...	golangci-lint run
Python	pytest	ruff check
Makefile	make test	make lint
Shell scripts	(none)	shellcheck *.sh

Rate Limiting

RU includes an adaptive parallelism governor:

Condition	Action
GitHub remaining < 100	Reduce parallelism to 1
GitHub remaining < 500	Reduce parallelism by 50%
Model 429 detected	Pause new sessions for 60s
Error rate > 50%	Open circuit breaker

Exit Codes (Sync)

Code	Meaning
0	Success - all repos synced or current
1	Partial failure - some repos failed
2	Conflicts exist
3	Dependency error (gh missing, auth failed)
4	Invalid arguments
5	Interrupted (use --resume)

Environment Variables

Variable	Description	Default
RU_PROJECTS_DIR	Base directory for repos	/data/projects
RU_LAYOUT	Path layout	flat
RU_PARALLEL	Parallel workers	1
RU_TIMEOUT	Network timeout (seconds)	30
RU_UPDATE_STRATEGY	Pull strategy	ff-only
GH_TOKEN	GitHub token	(from gh CLI)

Troubleshooting

Common Issues

Issue	Fix
gh: command not found	brew install gh && gh auth login
gh: auth required	gh auth login or set GH_TOKEN
Cannot fast-forward	Use --rebase or push first
dirty working tree	Commit changes or use --autostash
diverged_from_upstream	git fetch && git rebase origin/main

Debug Mode

# View latest run log
cat ~/.local/state/ru/logs/latest/run.log

# View specific repo log
cat ~/.local/state/ru/logs/latest/repos/mcp_agent_mail.log

# Run with verbose output
ru agent-sweep --verbose --debug

Preflight Failure Debugging

# View why repos were skipped
ru agent-sweep --json 2>/dev/null | jq '.repos[] | select(.status == "skipped")'

Installation

# One-liner
curl -fsSL https://raw.githubusercontent.com/Dicklesworthstone/repo_updater/main/install.sh | bash

# Verify
ru doctor

Architecture Notes

• ~17,700 LOC pure Bash, no external dependencies beyond git, curl, gh
• Work-stealing queue for parallel sync with atomic dequeue
• Portable locking via mkdir (works on all POSIX systems)
• Path security validation prevents traversal attacks
• Retry with exponential backoff for network operations

Integration with Flywheel

Tool	Integration
Agent Mail	Notify agents when repos are updated; coordinate reviews
BV	Track repo sync as recurring beads
CASS	Search past sync sessions and agent-sweep logs
NTM	Robot mode API for session orchestration
DCG	RU runs inside DCG sandbox protection