85 lines
2.0 KiB
Markdown
85 lines
2.0 KiB
Markdown
# josh-sync
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Bidirectional monorepo ↔ subrepo sync via [josh-proxy](https://josh-project.github.io/josh/). Supports multiple sync targets from a single config.
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## Quick Start
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### 1. Add config
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Create `.josh-sync.yml` in your monorepo root:
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```yaml
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josh:
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proxy_url: "https://josh.example.com"
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monorepo_path: "org/monorepo"
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targets:
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- name: "billing"
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subfolder: "services/billing"
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josh_filter: ":/services/billing"
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subrepo_url: "git@gitea.example.com:ext/billing.git"
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subrepo_auth: "ssh"
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branches:
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main: main
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forward_only: []
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bot:
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name: "josh-sync-bot"
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email: "josh-sync-bot@example.com"
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trailer: "Josh-Sync-Origin"
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```
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### 2. Add CI workflows
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Copy from [examples/](examples/) and customize paths/branches:
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```yaml
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# .gitea/workflows/josh-sync-forward.yml
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- uses: https://your-gitea.example.com/org/josh-sync@v1
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with:
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direction: forward
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env:
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SYNC_BOT_USER: ${{ secrets.SYNC_BOT_USER }}
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SYNC_BOT_TOKEN: ${{ secrets.SYNC_BOT_TOKEN }}
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SUBREPO_SSH_KEY: ${{ secrets.SUBREPO_SSH_KEY }}
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```
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### 3. Local dev (Nix)
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Add josh-sync as a flake input, then:
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```nix
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{ inputs, ... }: {
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imports = [ inputs.josh-sync.devenvModules.default ];
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}
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```
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Run `josh-sync preflight` to validate your setup.
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## CLI
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```
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josh-sync sync [--forward|--reverse] [--target NAME[,NAME]] [--branch BRANCH]
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josh-sync preflight
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josh-sync import <target>
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josh-sync reset <target>
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josh-sync status
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josh-sync state show <target> [branch]
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josh-sync state reset <target> [branch]
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```
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## How It Works
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- **Forward sync** (mono → subrepo): pushes directly if clean, creates conflict PR if not. Uses `--force-with-lease` for safety.
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- **Reverse sync** (subrepo → mono): always creates a PR, never pushes directly.
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- **Loop prevention**: `Josh-Sync-Origin:` git trailer filters out bot commits.
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- **State tracking**: orphan branch `josh-sync-state` stores JSON per target/branch.
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## Dependencies
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`bash >=4`, `git`, `curl`, `jq`, `yq` ([mikefarah/yq](https://github.com/mikefarah/yq) v4+), `openssh`
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## License
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MIT
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