Files
gitmost/packages/git-sync/src/engine/stabilize.ts
T
claude code agent 227 6dcc19ce59 refactor(git-sync): consume @docmost/prosemirror-markdown, drop the duplicate lib (#293 stage 3 / no-op)
git-sync's converter-core (src/lib) was a byte-identical duplicate of the new
@docmost/prosemirror-markdown package (created in the previous commit). Switch
git-sync to consume the package and delete its copy — ending the duplication
that the whole #293 effort targets. Pure no-op: NO format/behavior change.

- git-sync depends on @docmost/prosemirror-markdown (workspace:*); engine
  (stabilize/push/pull) + src/index barrel + 12 engine tests re-point their
  converter imports to the package.
- Delete git-sync/src/lib (8 files) and the 23 duplicate converter-core test
  files + their fixtures — the converter and its ~440 tests now live once, in the
  package. git-sync keeps only its ENGINE tests, which exercise the converter
  through the package (the no-op proof). Kept roundtrip-helpers.ts (an engine
  test imports firstDivergence from it; pure helper, no double-run).
- Added docmostExtensions to the package barrel (a kept engine schema-validity
  test needs it).

Verified: editor-ext + prosemirror-markdown + git-sync all tsc EXIT 0;
git-sync vitest 28 files, 268 passed, 0 failures (engine cycle/roundtrip/push/
pull/reconcile green = no-op proof); prosemirror-markdown vitest still 443 passed
| 1 expected-fail; pnpm --frozen-lockfile EXIT 0; no ../lib refs remain in git-sync.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-04 07:19:29 +03:00

79 lines
3.1 KiB
TypeScript

/**
* Normalize-on-write helper (SPEC §11 "Resolution").
*
* git diffs byte-for-byte, so writing a page in a NON-fixpoint markdown form
* would make the next pull re-export it to a slightly different (but stable)
* form and produce a phantom diff -> churny commits. The converter has a couple
* of known one-pass asymmetries (a block image after a paragraph adds an empty
* paragraph; a diagram materializes `data-align`), all of which converge to a
* fixpoint after ONE `export -> import -> export` round-trip.
*
* So at write time we run exactly that one pass and persist the fixpoint form.
* Already-stable content is unaffected (the pass is idempotent), so re-pulls of
* unchanged pages produce identical bytes and git sees no diff.
*/
import {
convertProseMirrorToMarkdown,
markdownToProseMirror,
serializeDocmostMarkdownBody,
type DocmostMdMeta,
} from "@docmost/prosemirror-markdown";
/**
* Meta object as `exportPageBody` builds it (SPEC §4). Kept byte-for-byte
* compatible so files produced here match `exportPageBody`'s output exactly.
*/
export interface PageMeta {
version: 1;
pageId: string;
slugId: string;
title: string;
spaceId: string;
parentPageId: string | null;
}
/**
* Produce the self-contained `.md` file text for a page from its raw
* ProseMirror `content` + identity meta, in the verified fixpoint form.
*
* md1 = convertProseMirrorToMarkdown(content)
* doc2 = markdownToProseMirror(md1) // one import...
* stableBody = convertProseMirrorToMarkdown(doc2) // ...and re-export
* file = serializeDocmostMarkdownBody(meta, stableBody)
*
* The single export->import->export pass is the verified fixpoint (SPEC §11):
* idempotent for already-stable content, and the convergence point for the
* known converter asymmetries.
*/
export async function stabilizePageFile(
content: unknown,
meta: PageMeta,
): Promise<string> {
// The meta shape is exactly what `exportPageBody` writes; cast to the lib's
// DocmostMdMeta (a superset with optional fields) for the serializer.
return serializeDocmostMarkdownBody(
meta as DocmostMdMeta,
await stabilizePageBody(content),
);
}
/**
* The fixpoint markdown BODY for a page's ProseMirror `content`, WITHOUT any meta
* envelope:
*
* md1 = convertProseMirrorToMarkdown(content) // export...
* doc2 = markdownToProseMirror(md1) // ...import...
* stableBody = convertProseMirrorToMarkdown(doc2) // ...re-export
*
* The single export->import->export pass is the verified fixpoint (SPEC §11):
* idempotent for already-stable content, and the convergence point for the known
* converter asymmetries. The native-Obsidian writer (`serializePageFile`) wraps
* this body with a minimal `gitmost_id` frontmatter; determinism here is what
* keeps re-pulls of an unchanged page byte-identical (no churn, loop-guard).
*/
export async function stabilizePageBody(content: unknown): Promise<string> {
const md1 = convertProseMirrorToMarkdown(content);
const doc2 = await markdownToProseMirror(md1);
return convertProseMirrorToMarkdown(doc2);
}