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docmost-sync/README.md
vvzvlad f68168e3c1 refactor(sync): unify git exec layer; fix non-ASCII paths + diagnostics (review)
Address a code review of the git-hardening changes.

- single runRaw primitive: every git invocation funnels through it; run() is a
  thin throw+trim wrapper; the two direct execFileAsync bypasses (commitRaw,
  assertGitAvailable) removed; one unified error format
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- README: require a system git binary on PATH for local runs
- tests: --no-verify honored (failing pre-commit hook), vaultGitEnv pins,
  core.attributesFile=/dev/null neutralization (593 green)
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Markdown

# docmost-sync
Bidirectional sync between Docmost articles and a local Markdown git vault — the
git repository is the state store. For the full design and the phased
implementation plan, see [`SPEC.md`](./SPEC.md) (the authoritative spec).
> **Status: Increment 1 — monorepo scaffold + read-only `pull` + Phase-0
> round-trip harness.** Continuous two-way sync is not implemented yet; see the
> phased plan in `SPEC.md`.
It reuses the sibling project **docmost-mcp** as a library: the `DocmostClient`
REST client and the lossless ProseMirror ↔ Markdown converter are extracted into
this monorepo (so changes can be backported file-by-file).
## Layout
This is an npm-workspaces monorepo:
- **`packages/docmost-client`** (`docmost-client`) — the Docmost REST client and
its `lib/` (converter, markdown-document, collaboration, …). Its source layout
mirrors `docmost-mcp/src/` 1:1 so diffs can be backported by copying files.
Sync-specific REST methods are added under clearly marked `docmost-sync
additions` banners.
- **the repo ROOT** — the sync engine app (`src/`, `test/`, `build/`, `data/`).
It depends on `docmost-client` and holds the config (`src/settings.ts`),
filename sanitization (`src/sanitize.ts`), the Phase-0 round-trip idempotency
harness (`src/roundtrip.ts`), and the read-only `pull` (`src/pull.ts`).
## Install & build
Requires Node >= 20. For local (non-Docker) runs a system `git` binary must
also be on `PATH` — the vault state store shells out to it for every operation
(the daemon fails fast at startup if `git` is missing).
```sh
npm install # links the workspace packages
npm run build # builds docmost-client, then compiles the app into build/
```
`docmost-client` must build before the app (the app consumes its built output);
the root `build` script builds the lib first, then runs `tsc`.
## Configuration
Copy [`.env.example`](./.env.example) to `.env` and fill in real values. The
config is read through [`src/settings.ts`](./src/settings.ts).
| Variable | Required | Meaning |
| ------------------- | :------: | -------------------------------------------------------- |
| `DOCMOST_API_URL` | yes | Base URL of our Docmost instance. |
| `DOCMOST_EMAIL` | yes | Docmost service-user login email. |
| `DOCMOST_PASSWORD` | yes | Docmost service-user login password. |
| `DOCMOST_SPACE_ID` | yes | Which Docmost space to mirror. |
| `VAULT_PATH` | no | Local vault directory (default `data/vault`). |
| `GIT_REMOTE` | no | Optional git remote the vault pushes to. |
| `POLL_INTERVAL_MS` | no | Poll interval in ms (default `15000`). |
| `DEBOUNCE_MS` | no | Debounce window in ms (default `2000`). |
| `LOG_LEVEL` | no | `debug` \| `info` \| `warn` \| `error` (default `info`). |
**Real secrets go in `.env`, which is git-ignored — never commit them.** The
git remote grants access to the whole vault, so protect it no less than Docmost
itself (SPEC §12).
## Running
### Round-trip idempotency harness (Phase 0, SPEC §11)
Verifies that `export → import → export` is byte-stable. Runs offline against a
fixture (the default for CI) — **no Docmost credentials needed**:
```sh
npm run build
node build/roundtrip.js --fixture test/fixtures/sample-doc.json
```
Or against a live page (needs `.env`):
```sh
node build/roundtrip.js --page <pageId>
```
Exit code is 0 when the markdown is byte-stable, 1 on a markdown divergence
(CI-able). A document-level divergence after stripping block ids is a known
SPEC §11 finding and does not fail the run.
### Pull (Docmost → filesystem mirror, SPEC §6)
Read-only mirror: walks the configured space's page tree and writes one `.md`
per page under `<VAULT_PATH>/<…ancestors>/<Title>.md`. **Requires a `.env` with
real Docmost credentials** — it makes live REST calls and does not touch Docmost
state (read-only this increment):
```sh
npm run pull
```