# Changelog

## 1.2.0

### Features

- **File exclusion**: `exclude` config field removes files/directories from the subrepo at the josh-proxy transport layer. Patterns are embedded inline in the josh-proxy URL using `:exclude[::pattern,...]` syntax — no extra files to generate or commit.
- **Filter change reconciliation**: When the josh filter changes (e.g., adding/removing exclude patterns), josh-sync automatically creates a reconciliation merge commit that connects old and new histories. No manual reset or force-push required.
- **Tree comparison guard**: Reverse sync now compares subrepo tree to josh-filtered tree before checking commit log. Skips immediately when trees are identical, avoiding false positives from reconciliation merge history.
- **Unrelated histories detection**: Forward sync detects when histories are unrelated (no common ancestor) and falls back to reconciliation instead of creating a useless conflict PR.

### Fixes

- Pre-v1.2 state compatibility: When upgrading from v1.0/v1.1 (no `josh_filter` stored in state), the old filter is derived from `subfolder` so reconciliation triggers correctly.
- Reconciliation merge parent order: Josh-filtered history is always first parent so josh-proxy can follow first-parent traversal back to the monorepo.
- Reverse sync `--ancestry-path` flag prevents old subrepo history from leaking through reconciliation merge parents.
- PR body `\n` now renders as actual newlines instead of literal text.
- Conflict result no longer updates sync state (added `continue` to skip state write).
- `action.yml` now copies VERSION file for correct `--version` output in CI.
- `.gitignore` now includes `dist/` and `.env`.

## 1.1.0

### Features

- **`onboard` command**: Interactive, resumable workflow for importing existing subrepos into the monorepo. Walks through: prerequisites check, import (creates PRs), wait for merge, reset (pushes josh-filtered history). Checkpoint/resume at every step.
- **`migrate-pr` command**: Migrates open PRs from an archived subrepo to the new one. Supports interactive selection, `--all` flag, and specific PR numbers. Uses `git apply --3way` for resilient patch application.
- **Onboard state tracking**: Stored on the `josh-sync-state` branch at `<target>/onboard.json`. Tracks step progress, import PR numbers, reset branches, and migrated PRs.

## 1.0.0

Initial release. Extracted from [private-monorepo-example](https://code.itkan.io/pe/private-monorepo-example) into a standalone reusable library.

### Features

- Bidirectional sync: forward (mono → subrepo) and reverse (subrepo → mono)
- Multi-target support via `.josh-sync.yml` config
- Per-target credential overrides (SSH keys, HTTPS tokens)
- Force-with-lease safety for forward sync
- Loop prevention via git trailers
- State tracking on orphan branch (`josh-sync-state`)
- Initial import and subrepo reset commands
- Composite action for Gitea/GitHub CI
- Nix flake with devenv module
- Preflight validation checks
- Config schema (JSON Schema)

### Breaking Changes (vs. inline scripts)

- Python + pyyaml replaced by yq-go (single static binary)
- 7 separate scripts replaced by single `josh-sync` CLI
- Consumer workflows use composite action (`uses: https://your-gitea/org/josh-sync@v1`)