mirror of
https://github.com/langflow-ai/langflow.git
synced 2026-07-24 06:10:49 +08:00
00963eb17a391ba07d6ca8b995ddff84eeeec654
5 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
| 7896b9f7f1 |
feat(bundles): metapackage split (Phase A) — engine-only lfx, lfx-bundles long tail, 5 graduated partner packages (#13563)
* feat(extension): add manifest-less lfx.bundles discovery + precedence tier Foundation for the bundle metapackage split (1.11). Adds a third @official-slot discovery source: a distribution declaring the [project.entry-points."lfx.bundles"] group ships a package whose immediate subdirectories are each a manifest-less bundle, folder-walked and registered at @official with no extension.json (the langchain-community model). - new loader/_bundles_root.py::load_lfx_bundles_extensions, mirroring discover_inline_bundles but sourcing roots from the lfx.bundles entry-point group via find_spec and reusing _load_bundle_directory - discovery precedence becomes installed > seed > lfx_bundles > dev > inline so a manifest-shipping lfx-<provider> always shadows the same-named provider in the metapackage (lets a provider graduate with no lockstep release), emitting the existing bundle-shadowed warning - new bundle-discovery-malformed warning code, emitted on warnings (never flips ok / aborts startup) for unresolvable declarations and invalid provider folder names - exported via loader/__init__ and the lfx.extension PEP-562 lazy surface 10 new tests in test_load_lfx_bundles.py; full extension unit suite (449) passes; ruff + format clean; mypy clean on the new module. * docs(bundles): changelog entry for the lfx.bundles discovery surface The BUNDLE_API.md changelog gate diffs each PR's branch against main, so the entry covering this PR's surface additions (lfx.bundles discovery, the lfx_bundles precedence tier, bundle-discovery-malformed) must live on this branch, not only further up the stack. Text is verbatim from the graduate-partners commit so the stacked merge dedupes trivially. * fix(extension): reject plain-module lfx.bundles targets; correct validate wording CodeRabbit review fixes on #13563: - _spec_package_dir no longer falls back to a plain module's parent directory -- a single-file entry-point target now emits the bundle-discovery-malformed warning instead of folder-walking unrelated sibling directories as bundles (+ regression test) - BUNDLE_API.md / loader docstring no longer say manifest-less providers are 'exempt from lfx extension validate'; they are not valid validator input (validate requires a manifest and reports manifest-not-found) * fix(extension): review fixes — shadowed metapackage providers never import; typed manifest-less reload refusal Review findings on #13563: - A manifest-less provider whose bundle name is already claimed by a higher-precedence @official source (installed/seed) is now skipped WITHOUT importing: all @official sources share the _lfx_ext.official.<bundle>.* sys.modules namespace, so importing the losing copy overwrote the winner's live modules even though _resolve_bundle_shadowing dropped its components afterwards. The orchestrator passes the claimed-name map (built by the new _claimed_official_bundles helper, mirroring the resolver's winner rule); the skipped copy still emits the typed bundle-shadowed warning. This collision is the expected post-graduation state, not an error. - Manifest-less records now carry a manifestless provenance flag (additive field on LoadResult + BundleRecord). The reload pipeline refuses them with the new typed reload-manifestless-unsupported code instead of routing through load_extension and failing with a misleading manifest-not-found. Hot reload of metapackage providers is a process-restart concern (pip-installed content); a loader-based reload path can follow if QA wants it. BUNDLE_API.md changelog entry extended for both surface changes. * fix(extension): harden lfx.bundles discovery per review — broad find_spec guard, namespace portions, per-mode error codes Review findings from ogabrielluiz on #13563: - find_spec on a dotted declaration imports the PARENT package, whose __init__ can raise anything; a non-Import error escaped the old catch tuple and (through the palette cache's catch-all) wiped every source's components for the boot. Catch Exception and degrade to the malformed sentinel; comment corrected. - Namespace packages: walk ALL submodule_search_locations portions (one root per portion) instead of only locations[0], and dedupe resolved roots by path so duplicate entry-point declarations (or overlapping portions) never walk a directory twice and self-shadow. _spec_package_dir -> _spec_package_dirs. - Split bundle-discovery-malformed into one code per failure mode, mirroring the inline tier: bundles-provider-name-invalid (rename the directory), bundles-root-unreadable (check permissions), keeping bundle-discovery-malformed for unresolvable declarations (fix the entry-point). Same-tier duplicates get duplicate-lfx-bundles-provider instead of overloading bundle-shadowed, whose rendered template (format_extension_error renders templates, not ad-hoc messages) was wrong on both counts for that case. - The claimed-bundles cross-source skip now emits bundle-shadowed on errors (matching _resolve_bundle_shadowing) so filtering by code never mixes severities; bundle-shadowed is already in the CLI warn-only set. 3 new regression tests (raising parent package, namespace portions, duplicate entry points); BUNDLE_API changelog updated. * feat(bundles): create lfx-bundles metapackage skeleton (#13564) * feat(bundles): add lfx-bundles metapackage skeleton Creates the manifest-less lfx-bundles distribution (the langchain-community model) that the long-tail providers will move into. Empty skeleton for now; the bulk move (scripts/migrate/consolidate_bundles.py) populates the provider folders + per-provider extras later. - src/bundles/lfx-bundles: a single pyproject declaring the lfx.bundles entry-point (lfx_bundles = "lfx_bundles"), an lfx>=1.10.0,<2.0.0 pin, and a generated (currently empty) `all` extra; plus a bare lfx_bundles namespace package and a README documenting the model + install stories - wired into the root workspace via the existing bundle marker blocks: dep lfx-bundles[all]>=1.0,<2.0, uv source, and member - hyphen dir name so release.yml's src/bundles/*/pyproject.toml glob builds it with zero workflow change Verified: the wheel builds (entry_points.txt carries the lfx.bundles group); load_lfx_bundles_extensions (PR-1) discovers the entry point and the empty skeleton registers zero providers with no error. * fix(ci): nightly bundle rename follows [extras] refs and self-refs Two gaps in update_bundle_versions.py around extras suffixes, both fatal or silently wrong for the first nightly carrying the lfx-bundles metapackage: - update_root_pyproject_for_bundle's dep regex required the version specifier immediately after the name, so "lfx-bundles[all]>=1.0,<2.0" (a MAIN dep) was left unrewritten while the workspace member was renamed to lfx-bundles-nightly; uv lock then tries to resolve stable lfx-bundles from PyPI, where it does not exist. The same gap silently left "lfx-docling[local]>=0.1.0" optional-dep refs pointing at the stable distribution. The regex now tolerates an [extras] group and carries it into the replacement. - rename_bundle_pyproject skipped self-referencing extras, so the metapackage's generated `all` extra kept 45 "lfx-bundles[<provider>]" members after the rename, pulling the stable distribution (same lfx_bundles import package, install collision) once published. Self refs now follow the rename, idempotently. Tests drive the real script module, mirroring test_bundle_lfx_pin.py. This closes the PR-2 audit item flagged when the metapackage was introduced. The canonical-pre-release cutover would retire the nightly rename entirely; until it lands, the rename must be correct. * fix(bundles): address review — drop orphaned nightly bundle-rename script, fix README install stories - Delete scripts/ci/update_bundle_versions.py and its tests: the nightly bundle-rename track it served was retired by the canonical pre-release cutover (src/bundles/NIGHTLY.md) and no workflow or Makefile target on main or any release branch invokes it. Stale doc references in sync_bundle_lfx_pin.py and test_bundle_lfx_pin.py updated to match. - README: split the install section into what works today (langflow, bare lfx) vs what arrives with the bulk move / engine-only split (lfx[bundles], per-provider lfx-bundles[<provider>] extras), and note the generated all extra is empty until the first provider tranche lands. * ci(bundles): cross-bundle test matrix (lfx contract axis) (#13566) * ci(bundles): add cross-bundle test matrix (lfx contract axis) Tests every extracted bundle (the lfx-bundles metapackage + each graduated lfx-<provider>) against the lfx contract surface it depends on -- overdue since 1.10 left 4 independently-versioned bundles depending on lfx. - .github/workflows/cross-bundle-test.yml: discovers bundles via the same src/bundles/*/pyproject.toml glob release.yml uses, then per (bundle x python 3.10/3.13): installs the in-repo lfx + the bundle, imports the declared entry-point package, asserts lfx.bundles discovery is error-free (for the metapackage), runs `lfx extension validate` for manifest bundles, and runs the bundle's own tests/. - Triggers: pull_request (src/bundles, src/lfx), workflow_dispatch, a weekly schedule, and workflow_call. The lfx-minor axis seeds with the in-repo lfx (the 1.10 line is unpublished); when minors publish, add the version dimension (oldest+latest get full tests, every supported minor gets contract-smoke) per the epic's cost-control shape. Verified: the workflow YAML parses and the contract-smoke logic imports a real bundle (lfx_arxiv) cleanly. * fix(ci): cross-bundle smoke tolerates extras-less SDK degradation Review findings on the cross-bundle matrix: - CRITICAL: the contract smoke asserted zero discovery errors, but the CI venv installs lfx-bundles WITHOUT per-provider extras, so providers whose modules import their SDK at top level degrade with module-import-failed -- the expected graceful-degradation contract. The smoke now fails only on structural codes and reports the degraded-module count. (Graduated partner bundles carry their deps directly, not as extras, so their steps are unaffected.) - the scheduled run now actually delivers the exhaustive grid the header promised (all supported Pythons on schedule; oldest+latest on PRs) - concurrency group with cancel-in-progress on PRs so stacked bundle PRs don't queue N-bundles x N-pythons jobs per push * ci(bundles): tomli fallback for the py3.10 cross-bundle smoke tomllib is stdlib only from Python 3.11, so the contract-smoke heredoc failed with ModuleNotFoundError on every py3.10 matrix leg. Install the tomli backport into the smoke venv and import it as a fallback. * fix(test): coherent sys.modules restore in the ibm without_ibm_db fixture The cross-bundle matrix's py3.10 leg exposed test-ordering pollution in the ibm bundle suite: without_ibm_db monkeypatch-deleted three lfx_ibm modules and re-imported them mid-test, but entries created during the test survive teardown (delitem with raising=False records nothing for keys it didn't find) and re-imported parents never regain the submodule attribute bindings that mock.patch target resolution walks on Python 3.10 (3.11+ mock resolves via sys.modules and tolerates the incoherence). Two fixture uses in sequence left the tree inconsistent and 29 later watsonx tests failed with AttributeError on the package. Snapshot, drop, and restore the entire lfx_ibm module tree wholesale instead. Full suite now passes on both 3.10 and 3.13. * feat(lfx): add lfx[bundles] extra and keep lfx engine-only (#13565) * feat(bundles): add lfx-bundles metapackage skeleton Creates the manifest-less lfx-bundles distribution (the langchain-community model) that the long-tail providers will move into. Empty skeleton for now; the bulk move (scripts/migrate/consolidate_bundles.py) populates the provider folders + per-provider extras later. - src/bundles/lfx-bundles: a single pyproject declaring the lfx.bundles entry-point (lfx_bundles = "lfx_bundles"), an lfx>=1.10.0,<2.0.0 pin, and a generated (currently empty) `all` extra; plus a bare lfx_bundles namespace package and a README documenting the model + install stories - wired into the root workspace via the existing bundle marker blocks: dep lfx-bundles[all]>=1.0,<2.0, uv source, and member - hyphen dir name so release.yml's src/bundles/*/pyproject.toml glob builds it with zero workflow change Verified: the wheel builds (entry_points.txt carries the lfx.bundles group); load_lfx_bundles_extensions (PR-1) discovers the entry point and the empty skeleton registers zero providers with no error. * feat(lfx): add lfx[bundles] extra and keep lfx engine-only lfx ships no bundles by default. The new optional extra pulls the long-tail metapackage for users who want the provider components without the full langflow server install. - src/lfx/pyproject.toml: [project.optional-dependencies] bundles = ["lfx-bundles[all]>=1.0,<2.0"]; intentionally NO lfx[all] - pip install lfx -> engine only pip install "lfx[bundles]" -> engine + the lfx-bundles long tail (documented as a headless/serverless deployment footnote, not a headline) Verified against the built lfx wheel METADATA: lfx-bundles appears only under `extra == "bundles"`, never in core Requires-Dist, so the engine-only default is preserved. * fix(ci): nightly bundle rename follows [extras] refs and self-refs Two gaps in update_bundle_versions.py around extras suffixes, both fatal or silently wrong for the first nightly carrying the lfx-bundles metapackage: - update_root_pyproject_for_bundle's dep regex required the version specifier immediately after the name, so "lfx-bundles[all]>=1.0,<2.0" (a MAIN dep) was left unrewritten while the workspace member was renamed to lfx-bundles-nightly; uv lock then tries to resolve stable lfx-bundles from PyPI, where it does not exist. The same gap silently left "lfx-docling[local]>=0.1.0" optional-dep refs pointing at the stable distribution. The regex now tolerates an [extras] group and carries it into the replacement. - rename_bundle_pyproject skipped self-referencing extras, so the metapackage's generated `all` extra kept 45 "lfx-bundles[<provider>]" members after the rename, pulling the stable distribution (same lfx_bundles import package, install collision) once published. Self refs now follow the rename, idempotently. Tests drive the real script module, mirroring test_bundle_lfx_pin.py. This closes the PR-2 audit item flagged when the metapackage was introduced. The canonical-pre-release cutover would retire the nightly rename entirely; until it lands, the rename must be correct. * ci(bundles): freeze lfx/components against new top-level providers (#13567) * feat(bundles): add lfx-bundles metapackage skeleton Creates the manifest-less lfx-bundles distribution (the langchain-community model) that the long-tail providers will move into. Empty skeleton for now; the bulk move (scripts/migrate/consolidate_bundles.py) populates the provider folders + per-provider extras later. - src/bundles/lfx-bundles: a single pyproject declaring the lfx.bundles entry-point (lfx_bundles = "lfx_bundles"), an lfx>=1.10.0,<2.0.0 pin, and a generated (currently empty) `all` extra; plus a bare lfx_bundles namespace package and a README documenting the model + install stories - wired into the root workspace via the existing bundle marker blocks: dep lfx-bundles[all]>=1.0,<2.0, uv source, and member - hyphen dir name so release.yml's src/bundles/*/pyproject.toml glob builds it with zero workflow change Verified: the wheel builds (entry_points.txt carries the lfx.bundles group); load_lfx_bundles_extensions (PR-1) discovers the entry point and the empty skeleton registers zero providers with no error. * ci(bundles): freeze lfx/components against new top-level providers After the metapackage split, new providers go to lfx-bundles (or a graduated lfx-<provider>), never in-tree. Adds an additions-only CI gate. - scripts/ci/check_components_frozen.py: stdlib gate comparing the live top-level dir listing of src/lfx/src/lfx/components/ against a committed baseline; fails on any directory not in the baseline. Removals are allowed so M4 shim cleanup (which shrinks the set) never trips it. - scripts/ci/frozen_component_dirs.txt: the 111-dir baseline. - .github/workflows/lint-py.yml: new freeze-components job runs the gate (stdlib-only, no uv sync). Verified locally: passes on the baseline, fails (exit 1) on a simulated new provider directory with an actionable message, passes again after cleanup. * fix(ci): freeze gate counts only dirs shipping __init__.py Review finding: a stray directory holding only __pycache__ bytecode (left behind by a branch switch) tripped the additions-only gate locally. A directory without __init__.py is not a provider; ignore it. * fix(ci): nightly bundle rename follows [extras] refs and self-refs Two gaps in update_bundle_versions.py around extras suffixes, both fatal or silently wrong for the first nightly carrying the lfx-bundles metapackage: - update_root_pyproject_for_bundle's dep regex required the version specifier immediately after the name, so "lfx-bundles[all]>=1.0,<2.0" (a MAIN dep) was left unrewritten while the workspace member was renamed to lfx-bundles-nightly; uv lock then tries to resolve stable lfx-bundles from PyPI, where it does not exist. The same gap silently left "lfx-docling[local]>=0.1.0" optional-dep refs pointing at the stable distribution. The regex now tolerates an [extras] group and carries it into the replacement. - rename_bundle_pyproject skipped self-referencing extras, so the metapackage's generated `all` extra kept 45 "lfx-bundles[<provider>]" members after the rename, pulling the stable distribution (same lfx_bundles import package, install collision) once published. Self refs now follow the rename, idempotently. Tests drive the real script module, mirroring test_bundle_lfx_pin.py. This closes the PR-2 audit item flagged when the metapackage was introduced. The canonical-pre-release cutover would retire the nightly rename entirely; until it lands, the rename must be correct. * feat(bundles): move 45 long-tail providers into lfx-bundles + graduate 5 partner packages (#13568) * feat(bundles): add lfx-bundles metapackage skeleton Creates the manifest-less lfx-bundles distribution (the langchain-community model) that the long-tail providers will move into. Empty skeleton for now; the bulk move (scripts/migrate/consolidate_bundles.py) populates the provider folders + per-provider extras later. - src/bundles/lfx-bundles: a single pyproject declaring the lfx.bundles entry-point (lfx_bundles = "lfx_bundles"), an lfx>=1.10.0,<2.0.0 pin, and a generated (currently empty) `all` extra; plus a bare lfx_bundles namespace package and a README documenting the model + install stories - wired into the root workspace via the existing bundle marker blocks: dep lfx-bundles[all]>=1.0,<2.0, uv source, and member - hyphen dir name so release.yml's src/bundles/*/pyproject.toml glob builds it with zero workflow change Verified: the wheel builds (entry_points.txt carries the lfx.bundles group); load_lfx_bundles_extensions (PR-1) discovers the entry point and the empty skeleton registers zero providers with no error. * feat(bundles): consolidate first long-tail tranche into lfx-bundles Adds scripts/migrate/consolidate_bundles.py (the inverse of port_bundle.py -- moves in-tree providers into the manifest-less lfx-bundles metapackage) and runs it on a verified 5-provider tranche: tavily, exa, wikipedia, yahoosearch, wolframalpha. Per provider the script: - moves src/lfx/src/lfx/components/<p>/ -> lfx_bundles/<p>/ (lowercase names); - leaves a fail-soft import shim (first line `# lfx-bundles-shim`) so `from lfx.components.<p> import X` keeps working when lfx-bundles is installed, and raises an actionable ImportError otherwise; - merges the provider's third-party deps into a PEP 685-normalized lfx-bundles extra and regenerates the `all` aggregate. Dep parity holds: `uv sync` is a no-op because those deps were already pulled via langflow-base[complete]; - appends the 4-entry migration block per Component class (28 entries) so saved flows referencing lfx.components.<p>.<Class> migrate to ext:<p>:<Class>@official. To avoid double registration, the in-tree component walk (_load_components_dynamically) now skips shimmed provider dirs, and component_index.json is regenerated (355->348 components, 95->90 modules); the moved providers load only at @official via lfx.bundles discovery. Verified: discovery finds all 5 at @official with no errors; shims resolve; `import lfx.components` still works; the index drops the 7 moved component entries (residual `tools`-category name refs resolve via the shim); ruff clean. First tranche proves the engine; the remaining long-tail scales by extending PROVIDER_DEPS (each provider's deps verified individually -- the careful part). * feat(bundles): consolidate 30-provider tranche 2 into lfx-bundles Extends PROVIDER_DEPS with 30 individually-verified providers and runs the consolidation: vector stores (chroma, clickhouse, couchbase, milvus, mongodb, pgvector, pinecone, qdrant, supabase, upstash, weaviate), model providers (groq, mistral, ollama, perplexity, sambanova), and tools/memory/data (apify, assemblyai, confluence, firecrawl, git, glean, icosacomputing, mem0, needle, scrapegraph, serpapi, unstructured, youtube, zep). Dep verification (the careful part): every spec comes from langflow-base's per-provider extras or its direct dependencies; langchain-community providers carry the wrapper plus the SDK the wrapper lazy-imports (e.g. pgvector, atlassian-python-api); requests is declared explicitly where imported (it is only transitive in today's env); pinecone keeps its python_version<'3.14' marker verbatim. Tranche excludes: providers with langflow imports (vlmrun), provider-specific lfx.base dirs (composio/huggingface/langwatch), case- sensitive names (FAISS/Notion), the openai-SDK family (azure/aiml/deepseek/ litellm/lmstudio/novita/openrouter/vllm/xai/cometapi -- cleaner after PR-8), and the partner set. Dep parity verified at the resolution level: the uv.lock diff is +220 lines of lfx-bundles extras metadata with ZERO packages added or removed (`name =` diff empty), so pip install langflow resolves the identical set. Also: 192 append-only migration entries (48 classes x 4, zero bare-name ambiguities); component_index.json regenerated 348->300 components / 90->60 modules (exactly the moved set, no stale standalone entries); mongodb_atlas.py SLF001 per-file-ignore and the mem0/mongodb detect-secrets baseline entries migrated to the new paths (lint/secrets exceptions travel with moved files); 35 bundles now discover at @official with 55 components; shims verified across categories; 449 extension tests pass. * feat(bundles): consolidate openai-SDK family tranche 3 into lfx-bundles 10 providers that ride the langchain-openai wrapper, deferred from tranche 2 until the partner graduation settled the openai-SDK dep story: aiml, azure, cometapi, deepseek, litellm, lmstudio, novita, openrouter, vllm, xai. Dep verification: every provider declares langchain-openai>=1.1.6; the openai SDK is declared only where a component imports it directly (aiml, deepseek, litellm, lmstudio, vllm, xai -- wrapper-transitive elsewhere); requests declared where imported (cometapi, deepseek, novita, xai); lmstudio's lazy NVIDIAEmbeddings path gets langchain-nvidia-ai-endpoints~=1.0.0. The litellm component drives LiteLLM-served endpoints through the OpenAI client and does NOT import the litellm package -- langflow-base's litellm extra stays put. These providers use the lazy _dynamic_imports __init__ shape; it survives the move unchanged (import_mod resolves via __spec__.parent and lfx.components._importing remains a core helper). Dep parity: uv.lock diff has zero package additions/removals (all specs already resolved via langflow-base[complete]). Also: 56 append-only migration entries (14 classes x 4, zero ambiguities); component_index.json regenerated 300->286 components / 60->50 modules (exactly the moved set); detect-secrets baseline re-keyed; 45 bundles now discover at @official with 69 components; shims verified (azure/xai/litellm/deepseek); ruff clean. * fix(ci): nightly bundle rename follows [extras] refs and self-refs Two gaps in update_bundle_versions.py around extras suffixes, both fatal or silently wrong for the first nightly carrying the lfx-bundles metapackage: - update_root_pyproject_for_bundle's dep regex required the version specifier immediately after the name, so "lfx-bundles[all]>=1.0,<2.0" (a MAIN dep) was left unrewritten while the workspace member was renamed to lfx-bundles-nightly; uv lock then tries to resolve stable lfx-bundles from PyPI, where it does not exist. The same gap silently left "lfx-docling[local]>=0.1.0" optional-dep refs pointing at the stable distribution. The regex now tolerates an [extras] group and carries it into the replacement. - rename_bundle_pyproject skipped self-referencing extras, so the metapackage's generated `all` extra kept 45 "lfx-bundles[<provider>]" members after the rename, pulling the stable distribution (same lfx_bundles import package, install collision) once published. Self refs now follow the rename, idempotently. Tests drive the real script module, mirroring test_bundle_lfx_pin.py. This closes the PR-2 audit item flagged when the metapackage was introduced. The canonical-pre-release cutover would retire the nightly rename entirely; until it lands, the rename must be correct. * feat(bundles): graduate partner set to standalone lfx-<provider> packages (#13573) * feat(bundles): graduate partner set to standalone lfx-<provider> packages Extracts the five partner/flagship providers into manifest-shipping distributions: lfx-openai, lfx-anthropic, lfx-amazon, lfx-datastax, lfx-cohere. Each ships extension.json (lfx.compat ["1"]), a langflow.extensions entry-point, an lfx>=1.10.0,<2.0.0 pin, and is wired into the root workspace marker blocks. Zero flow impact by the bundle-name invariant: ext:<provider>:<Class>@official ids are unchanged. Mechanics: - adopts the five-phase scripts/migrate/port_bundle.py from feat/bundle-mass-extraction (handles shared-base moves, consumer rewrites, surgical index updates, migration-table appends) and runs it per partner with --migration-release 1.11.0 - datastax's shared lfx.base.datastax moves into lfx_datastax.base; its backend unit tests move to src/bundles/datastax/tests (74 pass); its ruff per-file-ignore and its check_component_env_writes ALLOWLIST entry travel; 10 repo consumers rewritten (incl. the vector_store_rag starter project) - amazon_bedrock_converse.py legacy langflow.* imports rewritten to the lfx.* equivalents (thin re-export aliases; behavior-identical) pre-extraction - runtime deps pinned from langflow-base's extras / direct deps (wrapper- guaranteed SDKs stay transitive, parity-exact); --remove-base-extra dropped the openai/anthropic/cohere/aws extras from langflow-base[complete] in favor of the bundle pins; the astradb extra stays (also used outside datastax) - in-tree dirs replaced with marker shims pointing at lfx_<p>.components.<p> (skipped by the in-tree walk; legacy from lfx.components.<p> imports keep working); lfx/components/__init__.py entries kept, consistent with the consolidated providers - validate.py: accept classes whose base is a *derived* Component base (LCVectorStoreComponent / LCToolComponent / ...) -- they inherit the class-level outputs declaration and only override the output method, which the AST-only check could not see; bare Component subclasses keep the strict build/outputs requirement (+ regression test) - BUNDLE_API.md changelog entries added for the branch's surface changes: the lfx.bundles manifest-less discovery group + precedence tier + bundle-discovery-malformed code (from the foundation PR) and the validator acceptance above - 100 append-only migration entries (20 classes x 5 partners x 4 shapes); component_index.json surgically updated 300->280 components / 60->55 modules, sha256 recomputed and verified - detect-secrets baseline re-keyed for moved partner files Dep parity: lock diff adds only the five lfx-* package names; no third-party package added or removed. One benign transitive re-resolution: anthropic SDK 0.105.2 -> 0.109.0 (allowed by langchain-anthropic's range on both sides). Verified: all five register at @official via the installed-manifest tier (extension_id/distribution = lfx-<p>, 20 components); manifest-less lfx_bundles unchanged (35 bundles, disjoint); all 5 shims import; engine-safe; `lfx extension validate` passes for all five; 450 extension unit tests, 60 pilot-upgrade migration tests, 74 moved datastax tests pass; ruff clean. * fix(bundles): shim lfx.base.datastax so stored-flow imports keep resolving The datastax graduation moved lfx.base.datastax into lfx_datastax.base, but saved flows and starter templates (Hybrid Search RAG, TemplateAssistant) embed `from lfx.base.datastax.astradb_base import AstraDBBaseComponent` inside their stored component code fields, which is re-executed verbatim at flow build time. Without a shim that import raises ModuleNotFoundError and the flows fail to build (test-starter-projects red). Mirror the lfx.components shim contract: module-aliasing to lfx_datastax.base, narrow except that only translates a missing bundle (transitive dep failures re-raise untouched), marker-tagged single-file dir, removed at M4 together with the components shims. * chore(bundles): bounded version ranges for curated lfx-* packages (#13576) langflow's pyproject is the release-coordination point now that lfx and the lfx-* bundles release independently. Every curated lfx-* dependency declares a BOUNDED range (>=A,<B), never an exact pin -- exact pins in reusable library metadata create resolver conflicts for downstreams that depend on a different version. Exact pins for reproducibility live in uv.lock and the release-build manifests. - the 4 pilots + 5 graduated partners: >=0.1.0 -> >=0.1.0,<1.0.0 (bundles follow their own 0.1.x cadence) - lfx-bundles[all]>=1.0,<2.0 unchanged (versions with the metapackage contract) - the three lfx-docling[...] optional-dependency refs bounded the same way - policy documented inline in the bundle-deps marker block; the cross-bundle CI matrix verifies the ranges resolve together across the supported lfx axis Verified: uv lock resolves with zero package/version changes (bounds are metadata-only today); the nightly rename's dep regex already matches the bounded form. * test(bundles): lock the in-tree shim contract + breakage audit (#13577) * chore(bundles): bounded version ranges for curated lfx-* packages langflow's pyproject is the release-coordination point now that lfx and the lfx-* bundles release independently. Every curated lfx-* dependency declares a BOUNDED range (>=A,<B), never an exact pin -- exact pins in reusable library metadata create resolver conflicts for downstreams that depend on a different version. Exact pins for reproducibility live in uv.lock and the release-build manifests. - the 4 pilots + 5 graduated partners: >=0.1.0 -> >=0.1.0,<1.0.0 (bundles follow their own 0.1.x cadence) - lfx-bundles[all]>=1.0,<2.0 unchanged (versions with the metapackage contract) - the three lfx-docling[...] optional-dependency refs bounded the same way - policy documented inline in the bundle-deps marker block; the cross-bundle CI matrix verifies the ranges resolve together across the supported lfx axis Verified: uv lock resolves with zero package/version changes (bounds are metadata-only today); the nightly rename's dep regex already matches the bounded form. * test(bundles): lock the in-tree shim contract + breakage audit Locks the five-point contract for the 50 lfx-bundles import shims under lfx/components/ (45 metapackage + 5 graduated partners): 1. first line is the `# lfx-bundles-shim` marker (keys the in-tree walk's double-registration skip); 2. a shim dir is exactly one __init__.py -- no impls, no deps; 3. sys.modules module-aliasing (submodule trees resolve); 4. bundle missing -> actionable ModuleNotFoundError whose wording is part of the contract ("pip install lfx-bundles" / "pip install lfx-<p>"); 5. a missing *transitive* dep re-raises untouched. Test shape (env-adaptive by design -- the lfx test env prunes the venv, so nothing here assumes bundles are installed): - source-level sweep of every real shim, parameterized (no imports); - hermetic mechanism tests against a synthetic shim + synthetic target (alias-resolves / locked-message / transitive-reraise); - the walk-skip detector and the marker sweep must agree exactly; - one adaptive live test on lfx.components.tavily exercising whichever branch the running env is in. 106 tests pass in the pruned lfx env (where the live test exercises the bare-engine locked-message branch). Breakage audit (gh code search, recorded in the PR): ~20-25 public repos reference lfx.components.*; the majority are langflow forks (vendored tree, unaffected by packaging). Genuine library consumers exist and the moved providers have real surface (openai: 11 external repos, datastax: 17) -- covered by the shims wherever bundles are co-installed (every `pip install langflow`). Decision: deprecation warnings NOT warranted now; revisit at M4 (shim removal), where one loud minor release before removal is the right shape. * test(bundles): extend the shim contract sweep to lfx.base shims The datastax graduation moved lfx.base.datastax into lfx_datastax.base and left a module-aliasing shim behind (stored flow code fields embed the legacy import and are re-executed verbatim at build time). Sweep lfx/base for marker shims with the same source-level contract as the components sweep: one-file stub, module-aliasing to the bundle's base subpackage, narrow name-checked except, locked install message. * docs(bundles): install shapes, override rule, bundle_api_version (#13578) Documents the deliberately small user-facing rule surface of the metapackage split (1.11): - extensions-overview.mdx: the two install stories (pip install langflow = everything, same as today; pip install lfx = engine only, bring your own bundles); the bundle-name-is-identity invariant; the current package table (lfx-bundles metapackage + the 5 partner packages + the 4 pilots); the legacy-import shim behavior with the locked ModuleNotFoundError wording and the migration recipe for direct lfx users (switch to lfx[bundles] or pin lfx-<provider> packages); the override rule ("ship a manifest -- a manifest always wins", with the bundle-shadowed warning); bundle_api_version as the single compat number (lfx.compat ["1"]; manifest-less packages ride their PEP 508 lfx pin) and the no-version-arithmetic rule. - deployment-lfx-compatibility.mdx: lfx[bundles] as the headless/serverless deployment footnote (engine + lfx-bundles[all]; slimmer per-provider alternative; intentionally no lfx[all]). Both files verified MDX-safe (no unbackticked angle brackets). * fix(bundles): stack-review fixes — symlink containment, idempotency, docs accuracy (#13579) * chore(bundles): bounded version ranges for curated lfx-* packages langflow's pyproject is the release-coordination point now that lfx and the lfx-* bundles release independently. Every curated lfx-* dependency declares a BOUNDED range (>=A,<B), never an exact pin -- exact pins in reusable library metadata create resolver conflicts for downstreams that depend on a different version. Exact pins for reproducibility live in uv.lock and the release-build manifests. - the 4 pilots + 5 graduated partners: >=0.1.0 -> >=0.1.0,<1.0.0 (bundles follow their own 0.1.x cadence) - lfx-bundles[all]>=1.0,<2.0 unchanged (versions with the metapackage contract) - the three lfx-docling[...] optional-dependency refs bounded the same way - policy documented inline in the bundle-deps marker block; the cross-bundle CI matrix verifies the ranges resolve together across the supported lfx axis Verified: uv lock resolves with zero package/version changes (bounds are metadata-only today); the nightly rename's dep regex already matches the bounded form. * test(bundles): lock the in-tree shim contract + breakage audit Locks the five-point contract for the 50 lfx-bundles import shims under lfx/components/ (45 metapackage + 5 graduated partners): 1. first line is the `# lfx-bundles-shim` marker (keys the in-tree walk's double-registration skip); 2. a shim dir is exactly one __init__.py -- no impls, no deps; 3. sys.modules module-aliasing (submodule trees resolve); 4. bundle missing -> actionable ModuleNotFoundError whose wording is part of the contract ("pip install lfx-bundles" / "pip install lfx-<p>"); 5. a missing *transitive* dep re-raises untouched. Test shape (env-adaptive by design -- the lfx test env prunes the venv, so nothing here assumes bundles are installed): - source-level sweep of every real shim, parameterized (no imports); - hermetic mechanism tests against a synthetic shim + synthetic target (alias-resolves / locked-message / transitive-reraise); - the walk-skip detector and the marker sweep must agree exactly; - one adaptive live test on lfx.components.tavily exercising whichever branch the running env is in. 106 tests pass in the pruned lfx env (where the live test exercises the bare-engine locked-message branch). Breakage audit (gh code search, recorded in the PR): ~20-25 public repos reference lfx.components.*; the majority are langflow forks (vendored tree, unaffected by packaging). Genuine library consumers exist and the moved providers have real surface (openai: 11 external repos, datastax: 17) -- covered by the shims wherever bundles are co-installed (every `pip install langflow`). Decision: deprecation warnings NOT warranted now; revisit at M4 (shim removal), where one loud minor release before removal is the right shape. * docs(bundles): install shapes, override rule, bundle_api_version Documents the deliberately small user-facing rule surface of the metapackage split (1.11): - extensions-overview.mdx: the two install stories (pip install langflow = everything, same as today; pip install lfx = engine only, bring your own bundles); the bundle-name-is-identity invariant; the current package table (lfx-bundles metapackage + the 5 partner packages + the 4 pilots); the legacy-import shim behavior with the locked ModuleNotFoundError wording and the migration recipe for direct lfx users (switch to lfx[bundles] or pin lfx-<provider> packages); the override rule ("ship a manifest -- a manifest always wins", with the bundle-shadowed warning); bundle_api_version as the single compat number (lfx.compat ["1"]; manifest-less packages ride their PEP 508 lfx pin) and the no-version-arithmetic rule. - deployment-lfx-compatibility.mdx: lfx[bundles] as the headless/serverless deployment footnote (engine + lfx-bundles[all]; slimmer per-provider alternative; intentionally no lfx[all]). Both files verified MDX-safe (no unbackticked angle brackets). * fix(bundles): review fixes — symlink containment, idempotency, docs accuracy Fixes from the multi-agent stack review (kept as a separate PR so the reviewed PRs' diffs stay frozen for QA's independent pass): - _bundles_root.py: directory-level symlink containment — a provider dir that resolves outside the bundle root is skipped with a typed bundle-discovery-malformed warning, mirroring the seed-directory walk's is_within rule (+ regression test). Anchors the trust boundary to the installed package tree. - consolidate_bundles.py: migration-append idempotency guard — entries are deduped on full content so a partially-failed earlier run cannot duplicate rows on re-run (table stays append-only). - langflow-base pyproject: documented WHY the aws extra is deliberately retained after the lfx-amazon graduation (boto3 also backs the server's own S3 storage backend and lfx's S3 ingestion — review suggested removing it; that would regress S3 storage support). - extensions-overview.mdx: note that `lfx extension list` shows manifest-shipping extensions only; manifest-less packages load at startup but are not listed. 93 loader+migration tests pass (incl. the new symlink test); ruff clean. * refactor(bundles): stabilize import_mod as a public BUNDLE_API utility The lazy-import helper that bundle packages call from their __getattr__-based __init__.py files lived at lfx.components._importing -- an internal path with no stability contract, imported by 35 separately-installed bundle __init__ files (30 lfx-bundles providers + the 5 graduated partners). - canonical home is now lfx.utils.lazy_import.import_mod (code unchanged); lfx.components._importing re-exports it so in-tree callers and any external code on the old path keep working - all 35 bundle-side imports rewritten to the stable path - BUNDLE_API.md: surface table entry + changelog (additive) - contract tests: re-export identity, both call forms, the AttributeError conversion Verified: identity holds across both paths; lazy __init__ loads work through the new path for both bundle families; 110 tests pass; ruff clean. * fix(bundles): tombstone the broken legacy ZepChatMemory build method (#13580) build_message_history targeted the zep-python v1 SDK (ZepClient + zep_python.langchain.ZepChatMessageHistory); both were removed in zep-python 2.x and the zep extra pins 2.0.2, so the method has been unable to run for as long as the pin has existed -- its ImportError guard misleadingly told users to 'pip install zep-python' (already installed). The component is legacy=True with helpers.Memory as its designated replacement, so rather than hand-write a new integration against the 2.x SDK, the method now raises a clear RuntimeError pointing at the Message History component. Flow identity is preserved: class/component name, display_name, description, inputs and the memory output are byte-identical, so saved flows keep loading, i18n locale keys are unchanged, and migration_table.json needs no edits. New bundle tests pin the stub contract (identity, actionable error, no zep_python import). * test(bundles): extend the shim contract sweep to lfx.base shims The datastax graduation moved lfx.base.datastax into lfx_datastax.base and left a module-aliasing shim behind (stored flow code fields embed the legacy import and are re-executed verbatim at build time). Sweep lfx/base for marker shims with the same source-level contract as the components sweep: one-file stub, module-aliasing to the bundle's base subpackage, narrow name-checked except, locked install message. * test(bundles): extras-drift guard for the lfx-bundles metapackage Risk-2 of the metapackage split: the generated `all` extra and the per-provider extras must never drift by hand-edit, or `pip install langflow` silently loses a provider's deps. Guard the four invariants: extras <-> provider dirs (PEP 685-normalized), `all` == the exact self-ref set, normalized keys collision-free, and the metapackage provider set disjoint from the graduated partner distributions. * fix(extension): symlink-escaped providers reject with path-escape, matching the documented contract The lfx.bundles provider containment check (stack-review symlink fix) emitted bundle-discovery-malformed, whose template and hint describe a broken entry-point declaration. The changelog's path-safety entry already documents symlink escapes as path-escape on every other discovery path; use the same code here. Also resolves the semantic merge conflict with the per-mode code split (the removed _malformed_error location kwarg). * fix(tests): repoint lfx tests off moved providers; complete provider fallback map CI fail-fast had been masking these: the LFX test job runs in an engine-only env where openai/anthropic/chroma are now bundle-package shims, so every test that used them as the example category failed on all Python versions (3.14 just reported first), and the backend Group 2 leg failed collecting test_lfx_bundles_extras.py on Python 3.10. - flow_requirements: complete _PROVIDER_PACKAGE_FALLBACKS for the nine moved model providers (OpenAI, Anthropic, Amazon Bedrock, Groq, Google Generative AI, SambaNova, IBM watsonx.ai, Ollama + existing Azure OpenAI). In engine-only installs MODEL_PROVIDERS_DICT registers only in-tree providers, so the dynamic source-inspection path cannot resolve moved providers; the static fallbacks keep lfx run/serve requirements inference working. A dict hit still wins. - test_dynamic_imports / test_import_utils: use composio (still-in-tree lazy category with its SDK absent in the bare env) as the example category instead of openai/anthropic/chroma; patch import_module at its canonical home lfx.utils.lazy_import. - flow-builder tests (build_flow_from_spec, flow_builder_tools, propose_field_edit): specs use LanguageModelComponent (in-tree) instead of OpenAIModel. - test_lfx_bundles_extras: tomli fallback for Python 3.10 (tomllib is stdlib 3.11+; pytest guarantees tomli on <3.11). Full lfx unit suite: 4550 passed. Backend extras+pin tests: 24 passed. * fix(tests): repoint MCP client-server tests off graduated OpenAIModel key Same fail-fast-masked class as |
|||
| ee659ca38c |
fix(bundles): floor lfx pin at the minor line's .dev0 so nightlies resolve
The first 1.11.0.dev0 nightly failed its "Test Langflow Main CLI" step: the fork bump's sync_bundle_lfx_pin.py re-synced every bundle floor to lfx>=1.11.0, and PEP 440 sorts the nightly's 1.11.0.dev0 BELOW 1.11.0, so the workspace-built bundles (whose metadata shadows the satisfiable PyPI lfx-arxiv 0.1.1 during `uv pip install dist/*.whl`) reject the branch's own lfx while langflow-base pins it exactly — unresolvable. Floor at lfx>=X.Y.0.dev0,<(X+1).0.0 instead: X.Y.0.dev0 is the lowest version PEP 440 admits in the minor line, so every devN / rcN / final satisfies the floor while older lines and the next major stay excluded. This closes the NIGHTLY.md activation-gate hole structurally — future minor forks re-sync to a floor their own nightlies already satisfy. - sync_bundle_lfx_pin.py: lfx_floor_spec emits the .dev0 floor - port_bundle.py: mirrored _current_lfx_floor kept in step - bundle pyprojects restamped via the script (arxiv/docling/duckduckgo/ibm) - test_bundle_lfx_pin.py expectations updated (20/20 passing) - NIGHTLY.md gate section annotated with the post-activation fix uv.lock is unaffected (workspace lfx is recorded as an editable source with no specifier — which is also why uv sync/lock passed in the same job). The release.yml RC floor-relax sed still matches the new form; now redundant but harmless. No bundle version bump needed: published 0.1.1 floors >=1.10.0.rc0, satisfiable by the whole 1.11 line. |
|||
| db8935c233 |
fix(bundles): sync lfx pin to the 1.10.0 line after version realignment (#13516)
The LFX 0.5.0 -> 1.10.0 realignment (#13176) left every src/bundles/* package and the port_bundle.py generator flooring lfx>=0.5.0. That silently permits resolving against the now-dead 0.5.x line: a bundle built against 1.10.0's BUNDLE_API would ImportError there, and the BUNDLE_API_VERSION check (both "1") would not catch it. RELEASE.md flags exactly this — the jump "affects downstream pins, and neither pip nor uv will flag it." - Bump the 4 bundle pyprojects (arxiv, docling, duckduckgo, ibm) to "lfx>=1.10.0,<2.0.0": floored at the current major.minor line, capped below the next lfx major. Fine-grained API compat stays enforced via extension.json's lfx.compat against BUNDLE_API_VERSION, not the cap. - Add scripts/ci/sync_bundle_lfx_pin.py and call it from `make patch` so future releases keep bundle floors in step. Idempotent: a no-op on patch releases, moves the floor on minor/major bumps. Leaves docling self-refs and the nightly lfx-nightly== form untouched. - port_bundle.py now derives the floor from src/lfx/pyproject.toml, so newly-ported bundles are born at the current line. - Update src/bundles/PORTING.md and add test_bundle_lfx_pin.py (20 tests). |
|||
| be7edcbda1 | chore: unconstrained lfx version for bundles (#13415) | |||
| cc009c9133 |
feat(lfx): Bundle Separation and LFX Extension Framework (#13043)
* feat(lfx): installed-package + seed-directory discovery for production install (LE-1022) Adds the read-only production install path for Modes A, B, and C of the Bundle Separation iteration. Manifest-shipping pip-installed distributions and seed-directory subdirectories are discovered at server startup and registered as Extensions at @official. * discovery.py: walks importlib.metadata.distributions() + the $LANGFLOW_SEED_DIR / /opt/langflow/bundles seed root; produces DiscoveredExtension records and typed errors for malformed manifests / configured-but-missing seed dirs. * registry.py: ExtensionRegistry service with the immutability invariant for installed and seed entries. Mutation verbs (uninstall, disable, enable, install, update_entry) all raise ExtensionImmutableError carrying the typed installed-extension-immutable / seed-directory-immutable code so the invariant is testable today; the CLI uninstall surface ships in B4. * lfx extension list: read-only inspector with text and JSON output for operators inspecting Mode B/C images. * Errors: four new typed codes (installed-extension-immutable, seed-directory-immutable, seed-directory-not-found, duplicate-extension-id) plus snapshot coverage in tests/unit/extension/test_errors.py. * Tests: 165 extension tests pass, including the LE-1022 acceptance cases -- three pip-installed wheels visible at @official, three seed bundles visible at @official, and the parametrized service-layer immutability check across every mutation verb. * Docs: docs/Deployment/deployment-extensions-production.mdx covers the Dockerfile template, k8s deployment notes, the bundle packaging convention (extension.json shipped via package-data), and troubleshooting for the typed error codes. * feat(lfx): add single-Bundle loader and LANGFLOW_COMPONENTS_PATH discovery (#12967) * feat(lfx): add extension manifest schema, validate CLI, and error formatter (LE-1014) Foundation for the Bundle Separation iteration. Defines what a valid extension.json looks like (Pydantic models + Draft 2020-12 JSON Schema), ships the offline `lfx extension validate` command, and ships the single `format_extension_error` function that every other extension-system module will use to render structured errors. What's in lfx.extension: - `ExtensionManifest` / `BundleRef` / `LangflowCompat` Pydantic models with `extra="forbid"` so unknown fields fail loudly. Deferred fields (`services`, `routes`, `hooks`, `starter_projects`, `userConfig`) are reserved as None-only so non-null values produce a dedicated `field-deferred-in-this-milestone` error instead of a generic schema wall. `bundles` accepts a list but rejects length > 1 with `multi-bundle-deferred-in-this-milestone` (validator-enforced; the loader re-checks at install time in LE-1015). - `schema.build_schema()` + `build_schema_json()` produce the publishable artifact at schemas.langflow.org/extension/v1.json. - `ExtensionError` typed envelope and `format_extension_error` -- one branch per discriminant. Codes are registered in `ERROR_CODES`; an `ExtensionError` constructed with an unknown code raises at construction time, preventing producers from shipping without a matching renderer. - `validate_extension` runs four passes: manifest discovery + schema, path-safety (no `..`, no absolute paths, no symlink escape), AST inspection of every `.py` (syntax, Component subclass present, build() declared, top-level `import *`, top-level I/O primitives), and an opt-in `--execute-imports` that runs each module in a subprocess with a temporary HOME / TMPDIR / LANGFLOW_CONFIG_DIR and LANGFLOW_*/LFX_* env vars stripped. - `lfx extension validate` and `lfx extension schema` typer subcommands. Acceptance-criteria coverage in tests/unit/extension/: - Round-trips every v0 manifest field; deferred fields rejected; multi-bundle rejected with the dedicated discriminant. - JSON Schema validates the v0 example and rejects 12 malformed manifests with distinct error paths (>= 10 required by the ticket). - Median default-validate runtime < 100ms on the basic template. - Crafted side-effect bundle: default validate does NOT execute it (canary file is never written); `--execute-imports` DOES execute it and the canary appears, while LANGFLOW_* env vars are NOT inherited by the subprocess. - Snapshot tests for every code in ERROR_CODES; a guard test verifies ERROR_CODES and the snapshot table are in lockstep so future additions cannot ship without a format branch and a snapshot. Wiring: `lfx extension` is a sub-app under the Authoring help panel so future tickets (LE-1016 init/dev, LE-1018 reload) can attach without colliding with the existing `lfx validate` (which validates flow JSON, not extensions). * fix(lfx): fall back to tomli on Python 3.10 in extension manifest loader tomllib is stdlib only on 3.11+, but lfx supports 3.10-3.13. Use the existing tomli runtime dependency as the 3.10 fallback (same API, so the import alias keeps the rest of the module unchanged). Fixes ModuleNotFoundError seen in CI on the 3.10 job. * Update src/lfx/tests/unit/extension/test_schema.py Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com> * Update src/lfx/src/lfx/extension/schema.py Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com> * Update src/lfx/src/lfx/cli/_extension_commands.py Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com> * feat(lfx): add single-Bundle loader and LANGFLOW_COMPONENTS_PATH discovery (LE-1015) Introduces lfx.extension.loader: the runtime that turns an Extension on disk into LoadedComponent records keyed by ext:<bundle>:<Class>@<slot>. Two paths in: - load_extension(root): one manifest, one Bundle, registered at @official. Re-checks multi-bundle at runtime (defense-in-depth vs. the schema). - discover_inline_bundles(paths): each subfolder of LANGFLOW_COMPONENTS_PATH is a Bundle at @extra. Walk order is platform-independent (sorted dirs, user-declared path order). First-wins on duplicate names; second emits duplicate-inline-bundle warning that names both paths. Manifest-first precedence helpers (installed_extension_roots, manifest_owning_distributions, filter_plugin_entry_points) let callers of the legacy langflow.plugins entry-point loader skip distributions that ship a manifest, so component entry-points are not double-registered. New typed error codes: module-import-failed, duplicate-component-name, duplicate-distribution, duplicate-inline-bundle, inline-bundle-name-invalid. Each ships with a format branch and a snapshot test. Tests cover the AC: single-bundle happy path, multi-bundle rejection, missing/empty/no-Component bundle, duplicate class names, deterministic walk order, recursive discovery, inline-bundle first-wins + dot-dir skip + bundle.json metadata, manifest-first precedence partition, PEP-503 distribution-name canonicalization. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * fix(lfx): address LE-1015 review feedback - Drop the unproduced duplicate-distribution error code; LE-1022 will add it once startup-time discovery has a place to surface it. Restores the invariant that every code in ERROR_CODES has a producer. - Clarify that intra-bundle relative imports are NOT supported in v0; only absolute references between bundle modules work in this milestone. - Use strict=False when re-resolving bundle_root in the walker; the path was already existence-checked, and a concurrent removal in the narrow window should not raise across the loader's public boundary. - Hoist the json import out of _read_inline_bundle_json's body. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * refactor(lfx): split extension loader into a small subpackage (LE-1015) Addresses the file-size feedback from the LE-1015 review. The single 870-line loader.py becomes a flat package keyed off the four section banners that already existed inline: loader/ __init__.py # re-exports the public surface _types.py # SLOT constants, LoadedComponent, LoadResult _discovery.py # filesystem walk + importlib.util orchestration _detection.py # Component subclass identification (MRO heuristic) _orchestrator.py # load_extension, discover_inline_bundles _plugins.py # manifest-first precedence over langflow.plugins Largest file is now _orchestrator.py at 440 LOC (was 870); every file is well under the 800-LOC project guideline. No behavior change: the public import paths from lfx.extension are unchanged, all 38 loader tests still pass. ``_canonicalize_distribution`` is now exported as ``canonicalize_distribution`` from ``loader._plugins`` (it's a stable PEP-503 helper that downstream modules will reach for, so it loses the private underscore). The test suite is split to mirror the package: tests/unit/extension/loader/ conftest.py # shared fixtures, FakeDist, autouse scrub test_load_extension.py # @official slot, identity, failure modes test_inline_bundles.py # LANGFLOW_COMPONENTS_PATH, @extra slot test_plugins.py # manifest-first precedence helpers test_types.py # LoadedComponent, LoadResult, code parity Each test file imports its own slice of the public API and pulls fixtures from conftest, so a reader looking at one banner can read it in isolation. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * fix: LangflowCompat -> LfxCompat * fix: Remove references to ticket * fix: encode maxItems constraint in schema * fix: deferred fields and schema version * Fix ruff errors * fix: align loader tests with renamed manifest API and strip ticket refs The merge of feat/extension-validate brought in the LfxCompat / compat rename, but the loader test fixtures still used LangflowCompat / bundle_api and failed at the manifest layer. Update conftest.py + test_load_extension.py to the post-rename API. Strip 17 LE-XXXX ticket references from loader source files, errors.py loader-specific comments, and the four loader test docstrings, matching the convention applied to LE-1014. Descriptive prose preserved. Promote _BUNDLE_NAME_RE to BUNDLE_NAME_RE on the manifest module so the loader's orchestrator no longer reaches across modules into a private name. * refactor(lfx): clarify broad except, log malformed bundle.json, expand test docstring - Document why _discovery.import_bundle_module catches BaseException (startup-time loader, must surface bad bundles as typed errors rather than abort). - Add debug-level logging when bundle.json is malformed or non-object so a stale-cache footgun is at least observable. - Expand test_skips_re_imported_class docstring so future maintainers don't accidentally weaken the __module__-equality guard if package-style relative imports get added later. Also drops the stale duplicate-distribution claim from the PR description; that code is correctly deferred to LE-1022 along with /all integration. * feat(lfx): wire Extension System into /all, pathsep-split LANGFLOW_COMPONENTS_PATH, emit duplicate-distribution Closes the four AC gaps the previous reviewer flagged on PR #12967: 1. /all integration: get_and_cache_all_types_dict now also calls a new import_extension_components() that loads installed Extensions via load_installed_extensions, loads inline bundles via discover_inline_bundles, and builds frontend-node templates with extension/bundle/extension_version fields stamped on. Failures are logged and skipped per bundle. 2. LANGFLOW_COMPONENTS_PATH is now split on os.pathsep so multi-entry env vars (e.g. /a:/b on POSIX) produce multiple components-path entries instead of one literal non-existent path. Empty segments and missing paths are skipped. 3. duplicate-distribution is a real producer: load_installed_extensions surfaces a typed warning on the winner LoadResult when two distributions share a canonical name, naming every involved manifest path. 4. Manifest-first precedence runtime wiring: new filter_component_entry_points loads each entry-point and only skips ones that resolve to a Component subclass on a manifest-shipping distribution. plugin_routes.load_plugin_routes now applies it so non-component entry-points (route registrars) keep loading per the AC's 'unaffected' promise. Added the previously-missing AC test for same-distribution component+non-component partition. Also makes _distribution_canonical_name defensive against MagicMock test seams. * fix(lfx): register extension components under namespaced ID; promote duplicate-distribution to error Addresses the latest review of PR #12967: P1: /all integration now keys the cache inner dict by LoadedComponent.namespaced_id (ext:<bundle>:<Class>@<slot>) rather than the bare class name. Templates also carry the namespaced_id as an explicit field so consumers that look at the value (not the key) still see the canonical address. This is the form the LE-1020 migration table will rewrite legacy class-name references to. P2: load_installed_extensions now appends duplicate-distribution to result.errors instead of result.warnings, so LoadResult.ok=False when two distributions share a canonical name. The winner's components still appear in result.components so flows already pinned to them keep working; only the conflict status changes. Updated test to assert errors + ok=False; added explicit assertion that the winner's components are still present. * fix(lfx): installed-distribution discovery accepts pyproject.toml manifest form Closes the latest review finding on PR #12967: the installed-distribution scan only looked for extension.json, ignoring distributions whose manifest lives in [tool.langflow.extension] inside pyproject.toml. The AC explicitly treats both as valid manifest forms. _distribution_manifest_path now: - Returns extension.json immediately when present (preserves precedence matching load_manifest's discovery order). - Falls back to pyproject.toml only when extension.json is absent AND the pyproject's [tool.langflow.extension] section is parseable. Validation reuses load_manifest itself so the rule lives in exactly one place; a stray pyproject.toml without the section is correctly ignored. Tests cover: pyproject-only discovery, pyproject-without-section ignored, extension.json wins on collision, end-to-end pyproject load at @official, and pyproject-form manifest-first entry-point suppression. * refactor(lfx): tighten loader invariants, surface silent skips, harden tests Addresses the latest review feedback on PR #12967: Type-level invariants (_types.py): - LoadedComponent.__post_init__ enforces that @extra components must NOT carry a distribution. The reverse (@official without distribution) is permitted because load_extension is also used for dev-mode loads against a working tree before pip install. - LoadResult docstring documents the partial-success contract: components may be non-empty when errors is non-empty (some files imported, others failed). Callers branching on ok get strict success. Silent-failure fixes (_orchestrator.py + settings/base.py): - inline-path-missing: a non-existent / non-dir LANGFLOW_COMPONENTS_PATH entry now produces a typed warning per skipped path so a typo no longer yields zero diagnostics. Settings-layer skip bumped from debug to warning for the same reason. - bundle-json-invalid: a malformed or non-object bundle.json now surfaces a typed warning instead of silently rewriting the user-declared id/version to derived values under the same bundle name. - no-component-subclass gating uses a call-local counter instead of result.errors so the diagnostic stays accurate when a future caller reuses a LoadResult (multi-bundle / batch wrapper scenarios). Test hardening: - test_re_imported_class_is_skipped_via_module_filter rewritten to actually exercise the __module__-equality check via sys.modules injection; previously passed via module-import-failed (relative-import failure), which would silently weaken if package registration changes. - test_user_declared_path_order_is_preserved: AC #8's multi-path order case (distinct bundles in [path_b, path_a]) was unasserted; added. - test_inline_module_import_failure_attributes_identity: AC #10's identity-on-partial-failure was covered for @official but not @extra; added. - test_uses_real_distributions_by_default tightened to assert ep placement (in kept, not in skipped) instead of exact-list equality, so a future Langflow-shipped manifest doesn't silently flip the assertion. bumped 64 -> 175 passing extension tests; 20 backend integration tests still pass. * fix(lfx): malformed pyproject manifests surface manifest-invalid instead of disappearing Closes the latest review finding on PR #12967: a pyproject.toml with a [tool.langflow.extension] section that has missing/invalid required fields was silently dropped because _pyproject_has_extension_section ran full schema validation via load_manifest and returned False on ValueError/TypeError. That conflated 'no section' with 'section malformed'. Fix: detect section presence only. _pyproject_has_extension_section now calls _read_pyproject_extension (TOML parse + key lookup, no schema check). Behavior: - Section absent or pyproject TOML unparseable -> False (treat as regular non-manifest package). - Section present and is a table (valid OR schema-invalid) -> True. - Section present but is not a table -> True; the author intended to declare an extension and load_extension will surface the typed error. This way a typo'd pyproject Extension produces a typed manifest-invalid LoadResult with extension_id attribution, and manifest-first precedence still suppresses its legacy component entry-points -- matching the 'typed load results on success/failure' contract for the supported pyproject manifest form. Tests: two new cases pin the behavior. test_malformed_pyproject_section_ surfaces_manifest_invalid asserts a typed load-failure result with distribution attribution; the second test pins manifest-first suppression for malformed pyproject distributions. * refactor(lfx): emit inline-path-unreadable, document reload contract, trim rot Closes the remaining nits on PR #12967: - inline-path-unreadable (new typed error code): a configured LANGFLOW_COMPONENTS_PATH entry that raises OSError on iterdir (typically permission-denied) now produces a typed LoadResult error carrying str(exc) instead of silently swallowing the message. - duplicate-inline-bundle hint trimmed: removed forward promise about hard-error-in-a-later-release; same actionability, no expiration. - discover_inline_bundles docstring trimmed from three paragraphs to two sentences (per CLAUDE.md anti-multi-paragraph rule). - _distribution_manifest_path docstring trimmed to one-liner. - installed_extension_roots dropped Used-by caller-narration list; manifest_owning_distributions docstring rewritten to call out the shadow-load risk for direct callers and point to load_installed_ extensions for the typed warning surface. - _discovery.import_bundle_module: replaced 'until that lands in a later milestone' rot with a single line ('Absolute imports only between bundle modules; relative imports unsupported.') AND added the single-load-per-process contract note documenting why LE-1018 reload must scrub registry/sys.modules before re-invoking the loader. - load_extension docstring grew a 'Single-load-per-process contract' block telling direct callers not to rely on this function for refresh. Tests: new test_unreadable_path_emits_inline_path_unreadable pins the OSError -> typed-error path. --------- Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com> Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * feat(lfx): atomic-swap Bundle reload pipeline + endpoint + CLI (LE-1018) (#12979) * feat(lfx): add single-Bundle loader and LANGFLOW_COMPONENTS_PATH discovery (LE-1015) Introduces lfx.extension.loader: the runtime that turns an Extension on disk into LoadedComponent records keyed by ext:<bundle>:<Class>@<slot>. Two paths in: - load_extension(root): one manifest, one Bundle, registered at @official. Re-checks multi-bundle at runtime (defense-in-depth vs. the schema). - discover_inline_bundles(paths): each subfolder of LANGFLOW_COMPONENTS_PATH is a Bundle at @extra. Walk order is platform-independent (sorted dirs, user-declared path order). First-wins on duplicate names; second emits duplicate-inline-bundle warning that names both paths. Manifest-first precedence helpers (installed_extension_roots, manifest_owning_distributions, filter_plugin_entry_points) let callers of the legacy langflow.plugins entry-point loader skip distributions that ship a manifest, so component entry-points are not double-registered. New typed error codes: module-import-failed, duplicate-component-name, duplicate-distribution, duplicate-inline-bundle, inline-bundle-name-invalid. Each ships with a format branch and a snapshot test. Tests cover the AC: single-bundle happy path, multi-bundle rejection, missing/empty/no-Component bundle, duplicate class names, deterministic walk order, recursive discovery, inline-bundle first-wins + dot-dir skip + bundle.json metadata, manifest-first precedence partition, PEP-503 distribution-name canonicalization. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * fix(lfx): address LE-1015 review feedback - Drop the unproduced duplicate-distribution error code; LE-1022 will add it once startup-time discovery has a place to surface it. Restores the invariant that every code in ERROR_CODES has a producer. - Clarify that intra-bundle relative imports are NOT supported in v0; only absolute references between bundle modules work in this milestone. - Use strict=False when re-resolving bundle_root in the walker; the path was already existence-checked, and a concurrent removal in the narrow window should not raise across the loader's public boundary. - Hoist the json import out of _read_inline_bundle_json's body. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * refactor(lfx): split extension loader into a small subpackage (LE-1015) Addresses the file-size feedback from the LE-1015 review. The single 870-line loader.py becomes a flat package keyed off the four section banners that already existed inline: loader/ __init__.py # re-exports the public surface _types.py # SLOT constants, LoadedComponent, LoadResult _discovery.py # filesystem walk + importlib.util orchestration _detection.py # Component subclass identification (MRO heuristic) _orchestrator.py # load_extension, discover_inline_bundles _plugins.py # manifest-first precedence over langflow.plugins Largest file is now _orchestrator.py at 440 LOC (was 870); every file is well under the 800-LOC project guideline. No behavior change: the public import paths from lfx.extension are unchanged, all 38 loader tests still pass. ``_canonicalize_distribution`` is now exported as ``canonicalize_distribution`` from ``loader._plugins`` (it's a stable PEP-503 helper that downstream modules will reach for, so it loses the private underscore). The test suite is split to mirror the package: tests/unit/extension/loader/ conftest.py # shared fixtures, FakeDist, autouse scrub test_load_extension.py # @official slot, identity, failure modes test_inline_bundles.py # LANGFLOW_COMPONENTS_PATH, @extra slot test_plugins.py # manifest-first precedence helpers test_types.py # LoadedComponent, LoadResult, code parity Each test file imports its own slice of the public API and pulls fixtures from conftest, so a reader looking at one banner can read it in isolation. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * feat(lfx): atomic-swap Bundle reload pipeline + endpoint + CLI (LE-1018) Five-stage reload (parallel staging load -> validate -> swap under write lock -> cleanup -> emit) for installed Bundles in Mode A. In-flight flows keep the pre-swap class via existing references; new flows pick up the post-swap class atomically; concurrent reloads on the same Bundle are rejected with reload-in-progress. Adds: * lfx/extension/registry.py -- BundleRegistry with per-bundle reload-in-progress guard and components_index.json writer * lfx/extension/reload.py -- the five-stage pipeline; events emission is stubbed (TODO LE-1017) so the swap mechanics can ship before the events service lands * loader: optional module_namespace param so Stage 1 lands in __reload_staging__.<id> instead of the live _lfx_ext.* namespace * errors: four new typed reload codes (reload-in-progress, reload-bundle-not-installed, reload-bundle-name-mismatch, reload-source-missing) with branch templates and snapshot tests * HTTP: POST /api/v1/extensions/{id}/bundles/{name}/reload, gated by the existing get_current_active_user dependency, returns 409 with a typed body for the in-progress collision case * CLI: lfx extension reload <id> [--bundle <name>] -- HTTP client against the dev server with text/json output and proper exit codes (--all is gated until LE-1019 lands the list endpoint) * tests: 16 reload-pipeline tests covering the AC matrix (rename round-trip, broken-bundle isolation, concurrent readers, in-flight flow, double-reload guard, bundle-name mismatch) plus 9 CLI client tests Mode A only. In Mode B/C bundle changes require a Docker image rebuild and the reload path is not exercised. The events emission in Stage 5 is intentionally stubbed -- the LE-1017 ticket will swap the body of _emit_bundle_reload_event in one place without touching the pipeline core. --------- Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * [autofix.ci] apply automated fixes * feat(lfx): add `extension init` and `extension dev` CLIs (LE-1016) (#12968) * feat(lfx): add extension manifest schema, validate CLI, and error formatter (LE-1014) Foundation for the Bundle Separation iteration. Defines what a valid extension.json looks like (Pydantic models + Draft 2020-12 JSON Schema), ships the offline `lfx extension validate` command, and ships the single `format_extension_error` function that every other extension-system module will use to render structured errors. What's in lfx.extension: - `ExtensionManifest` / `BundleRef` / `LangflowCompat` Pydantic models with `extra="forbid"` so unknown fields fail loudly. Deferred fields (`services`, `routes`, `hooks`, `starter_projects`, `userConfig`) are reserved as None-only so non-null values produce a dedicated `field-deferred-in-this-milestone` error instead of a generic schema wall. `bundles` accepts a list but rejects length > 1 with `multi-bundle-deferred-in-this-milestone` (validator-enforced; the loader re-checks at install time in LE-1015). - `schema.build_schema()` + `build_schema_json()` produce the publishable artifact at schemas.langflow.org/extension/v1.json. - `ExtensionError` typed envelope and `format_extension_error` -- one branch per discriminant. Codes are registered in `ERROR_CODES`; an `ExtensionError` constructed with an unknown code raises at construction time, preventing producers from shipping without a matching renderer. - `validate_extension` runs four passes: manifest discovery + schema, path-safety (no `..`, no absolute paths, no symlink escape), AST inspection of every `.py` (syntax, Component subclass present, build() declared, top-level `import *`, top-level I/O primitives), and an opt-in `--execute-imports` that runs each module in a subprocess with a temporary HOME / TMPDIR / LANGFLOW_CONFIG_DIR and LANGFLOW_*/LFX_* env vars stripped. - `lfx extension validate` and `lfx extension schema` typer subcommands. Acceptance-criteria coverage in tests/unit/extension/: - Round-trips every v0 manifest field; deferred fields rejected; multi-bundle rejected with the dedicated discriminant. - JSON Schema validates the v0 example and rejects 12 malformed manifests with distinct error paths (>= 10 required by the ticket). - Median default-validate runtime < 100ms on the basic template. - Crafted side-effect bundle: default validate does NOT execute it (canary file is never written); `--execute-imports` DOES execute it and the canary appears, while LANGFLOW_* env vars are NOT inherited by the subprocess. - Snapshot tests for every code in ERROR_CODES; a guard test verifies ERROR_CODES and the snapshot table are in lockstep so future additions cannot ship without a format branch and a snapshot. Wiring: `lfx extension` is a sub-app under the Authoring help panel so future tickets (LE-1016 init/dev, LE-1018 reload) can attach without colliding with the existing `lfx validate` (which validates flow JSON, not extensions). * fix(lfx): fall back to tomli on Python 3.10 in extension manifest loader tomllib is stdlib only on 3.11+, but lfx supports 3.10-3.13. Use the existing tomli runtime dependency as the 3.10 fallback (same API, so the import alias keeps the rest of the module unchanged). Fixes ModuleNotFoundError seen in CI on the 3.10 job. * Update src/lfx/tests/unit/extension/test_schema.py Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com> * Update src/lfx/src/lfx/extension/schema.py Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com> * Update src/lfx/src/lfx/cli/_extension_commands.py Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com> * feat(lfx): add single-Bundle loader and LANGFLOW_COMPONENTS_PATH discovery (LE-1015) Introduces lfx.extension.loader: the runtime that turns an Extension on disk into LoadedComponent records keyed by ext:<bundle>:<Class>@<slot>. Two paths in: - load_extension(root): one manifest, one Bundle, registered at @official. Re-checks multi-bundle at runtime (defense-in-depth vs. the schema). - discover_inline_bundles(paths): each subfolder of LANGFLOW_COMPONENTS_PATH is a Bundle at @extra. Walk order is platform-independent (sorted dirs, user-declared path order). First-wins on duplicate names; second emits duplicate-inline-bundle warning that names both paths. Manifest-first precedence helpers (installed_extension_roots, manifest_owning_distributions, filter_plugin_entry_points) let callers of the legacy langflow.plugins entry-point loader skip distributions that ship a manifest, so component entry-points are not double-registered. New typed error codes: module-import-failed, duplicate-component-name, duplicate-distribution, duplicate-inline-bundle, inline-bundle-name-invalid. Each ships with a format branch and a snapshot test. Tests cover the AC: single-bundle happy path, multi-bundle rejection, missing/empty/no-Component bundle, duplicate class names, deterministic walk order, recursive discovery, inline-bundle first-wins + dot-dir skip + bundle.json metadata, manifest-first precedence partition, PEP-503 distribution-name canonicalization. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * fix(lfx): address LE-1015 review feedback - Drop the unproduced duplicate-distribution error code; LE-1022 will add it once startup-time discovery has a place to surface it. Restores the invariant that every code in ERROR_CODES has a producer. - Clarify that intra-bundle relative imports are NOT supported in v0; only absolute references between bundle modules work in this milestone. - Use strict=False when re-resolving bundle_root in the walker; the path was already existence-checked, and a concurrent removal in the narrow window should not raise across the loader's public boundary. - Hoist the json import out of _read_inline_bundle_json's body. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * refactor(lfx): split extension loader into a small subpackage (LE-1015) Addresses the file-size feedback from the LE-1015 review. The single 870-line loader.py becomes a flat package keyed off the four section banners that already existed inline: loader/ __init__.py # re-exports the public surface _types.py # SLOT constants, LoadedComponent, LoadResult _discovery.py # filesystem walk + importlib.util orchestration _detection.py # Component subclass identification (MRO heuristic) _orchestrator.py # load_extension, discover_inline_bundles _plugins.py # manifest-first precedence over langflow.plugins Largest file is now _orchestrator.py at 440 LOC (was 870); every file is well under the 800-LOC project guideline. No behavior change: the public import paths from lfx.extension are unchanged, all 38 loader tests still pass. ``_canonicalize_distribution`` is now exported as ``canonicalize_distribution`` from ``loader._plugins`` (it's a stable PEP-503 helper that downstream modules will reach for, so it loses the private underscore). The test suite is split to mirror the package: tests/unit/extension/loader/ conftest.py # shared fixtures, FakeDist, autouse scrub test_load_extension.py # @official slot, identity, failure modes test_inline_bundles.py # LANGFLOW_COMPONENTS_PATH, @extra slot test_plugins.py # manifest-first precedence helpers test_types.py # LoadedComponent, LoadResult, code parity Each test file imports its own slice of the public API and pulls fixtures from conftest, so a reader looking at one banner can read it in isolation. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * feat(lfx): add `extension init` and `extension dev` CLIs (LE-1016) The two scaffolding CLIs an Extension author types: - `lfx extension init <target>` writes the basic single-Bundle template (manifest with $schema, README, .gitignore, one Component subclass + a pytest smoke test). AC #1: the generated extension validates clean against LE-1014. AC #2: the generated test file is a valid pytest module that exercises the component's build() method. AC #3: any --template other than 'basic' fails with a typed template-deferred-in-this-milestone error and a non-zero exit. Refuses to scaffold over a non-empty target dir. - `lfx extension dev <target>` validates the local extension, records its absolute path in <config_dir>/extensions/dev_extensions.json, prints reload instructions, and execs `langflow run` (or `python -m langflow` when langflow isn't on PATH). --skip-launch registers without launching (used by tests + external dev-server scripts); --skip-validate lets authors register a known-broken manifest to debug it under the loader. Stack: - Wave 0: error codes (extension-target-exists, extension-target-invalid, local-extension-missing) with format branches and snapshot tests. - Wave 1: lfx.extension.init_template -- pure-data scaffolder, no Typer dependency so the CLI is a thin shell over it. - Wave 1: lfx.extension.dev_registry -- atomic JSON state file under the langflow user-cache dir; helpers for register / list / unregister / load_dev_extensions / dev_extension_component_paths. - Wave 2: lfx.cli._extension_commands gains init/dev subcommands. - Wave 2: langflow.main lifespan hook reads the dev registry after bundle loading and extends components_path with each registered bundle dir, so the existing palette discovery picks up dev extensions. Missing paths surface as local-extension-missing warnings (AC #5) without aborting startup. Tests (84 new, 197 total in tests/unit/extension/): - test_init_template.py: AC scenarios + identifier derivation + deterministic file shape. - test_dev_registry.py: register/list/unregister round-trip, idempotent re-register refreshes timestamp, malformed state file treated as empty, missing-path warning, recovery when path reappears, env-var override precedence. - test_cli.py: AC #1 init->validate, AC #3 deferred templates, --skip-launch registers without launching, --skip-validate short-circuits the pre-flight pass. - test_errors.py: snapshot rows for all three new codes; the every-known-code-has-a-snapshot test enforces parity. LE-1018 (reload) reuses load_dev_extensions; LE-1022 (installed-pkg discovery) shares the components_path extension pattern. AC #4 ("boots Langflow with the extension visible in the palette within 5s") is delivered jointly by `extension dev` (registers + execs) and the lifespan hook (loads on startup). Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * fix(lfx): address LE-1016 review feedback Fixes the four HIGH issues + the elevated LOW from the review pass: 1. dev_extension_component_paths now forwards EVERY warning, not just local-extension-missing. Previously a duplicate-component-name (or any future warning code) was silently dropped, hiding real signal from the lifespan hook's logs. 2. Defensive emit when a LoadResult has components but source_path is None. The current loader always sets source_path, but a future hand-built LoadResult could violate that contract; we now surface a typed local-extension-missing error rather than dropping the extension silently. 3. Replaced the fragile ``min(len(parts))`` bundle-root selection with a relative-to-source-path measurement. Handles deep-vs-shallow sibling extensions correctly without depending on absolute path depth. 4. Generated README now documents the langflow/lfx prerequisite under the Develop section so authors know `pytest` requires the lfx environment, not just Python. 5. Forced LANGFLOW_LAZY_LOAD_COMPONENTS=false unconditionally in the `extension dev` exec env (was setdefault, which let a developer's global lazy-loading export silently hide their dev components from the palette and miss AC #4's 5s budget). Plus three MEDIUMs: - sys.modules cleanup in test_generated_test_file_runs_against_generated_component so a later test importing the same dotted path doesn't pick up a stale module from a deleted tmp_path. Component instantiation moved inside the try block because Component.__init__ uses inspect.getsourcefile against self.__class__'s still-live module. - Added regex-drift test that pins the init_template patterns to match manifest.py's so a schema regex change can't quietly produce invalid scaffolded manifests. - Added two new dev_registry tests covering the forward-all-warnings contract and the source_path=None defense. Tests: 201 passing (4 new); ruff check + format clean. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * fix: LangflowCompat -> LfxCompat * fix: Remove references to ticket * fix: encode maxItems constraint in schema * fix: deferred fields and schema version * Fix ruff errors * fix: align loader tests with renamed manifest API and strip ticket refs The merge of feat/extension-validate brought in the LfxCompat / compat rename, but the loader test fixtures still used LangflowCompat / bundle_api and failed at the manifest layer. Update conftest.py + test_load_extension.py to the post-rename API. Strip 17 LE-XXXX ticket references from loader source files, errors.py loader-specific comments, and the four loader test docstrings, matching the convention applied to LE-1014. Descriptive prose preserved. Promote _BUNDLE_NAME_RE to BUNDLE_NAME_RE on the manifest module so the loader's orchestrator no longer reaches across modules into a private name. * fix(lfx): align init template with renamed manifest API After merging feat/extension-loader into this branch, two surfaces fell out of sync with the renamed manifest schema: - init_template generates extension.json with `lfx: {bundle_api: [1]}`, but the validator now requires `lfx: {compat: ["1"]}` per LfxCompat. This made `test_basic_template_validates_clean` fail with manifest-invalid (`lfx.compat: Field required; lfx.bundle_api: Extra inputs are not permitted`). - test_init_template_regexes_match_manifest_schema reads `manifest_mod._BUNDLE_NAME_RE`, but that symbol was promoted to public `BUNDLE_NAME_RE` in |
