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…mentation rely on `forgelm export` computed the digest of the GGUF but never wrote `<output>.sha256`; the only writer in the package was the checkpoint-tarball helper. `forgelm verify-gguf`, the user manual and the GGUF reference all describe the sidecar as something the exporter produces, so the sidecar check had nothing to compare against unless the operator created the file by hand. The exporter now writes `<output>.sha256` in `sha256sum` binary-mode format (`<hex> *<name>`) through a temporary name and a rename. A sidecar that cannot be written fails the export (exit 2, `error_kind="runtime"`) rather than leaving a GGUF the documentation says is covered; the digest is still reported. For a K-quant request the file written is the intermediate `*.f16.gguf`, so the sidecar belongs to that file. A `model_integrity.json` that cannot be updated is now logged as a warning instead of at debug level. The sidecar detects corruption and accidental change; it is not tamper evidence, and the pages now say so. The same change rewrites the parts of the GGUF pages that described things the code does not do: the invented manifest and `verify-gguf` output (vocabulary and tokenizer checks that do not exist), K-quants shown as one-step, "always merges LoRA", and a clean `verify-gguf` exit presented as more than it proves. English and Turkish. Refs #83, #84, #85 Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
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| Check name | Status | Explanation | Resolution |
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| Docstring Coverage |  |
Docstring coverage is 27.78% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 18 functions across 3 files. (7 skipped: … | Write docstrings for the functions missing them to satisfy the coverage threshold. |
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Check name Status Explanation Title check The title clearly and concisely identifies the primary change: adding SHA-256 sidecar generation to exports for use by verification and documentation. Description check The description follows the required template and provides a detailed summary, issue references, change list, type, testing evidence, checklist updates, behavior changes, and out-of-scope items. Linked Issues check Check skipped because no linked issues were found for this pull request. Out of Scope Changes check Check skipped because no linked issues were found for this pull request.
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Docstring coverage is 27.78% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 18 functions across 3 files. (7 skipped: 7 unsupported.)
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Write docstrings for the functions missing them to satisfy the coverage threshold.
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Reviewer's GuideThis PR makes SHA-256 sidecars a real export artifact, written atomically for the actual output (including K-quant intermediate f16 files), with explicit failure handling and expanded tests. It also aligns English and Turkish documentation and verifier guidance with current behavior, including the limits of magic-only verification and the non-tamper-evident nature of adjacent sidecars. Sequence diagram for atomic GGUF sidecar exportsequenceDiagram
participant Export as forgelm export
participant GGUF as GGUF output
participant Sidecar as SHA-256 sidecar
participant Manifest as model_integrity.json
Export->>GGUF: _sha256_file(actual_output_path)
Export->>Sidecar: _write_sha256_sidecar(actual_output_path, digest)
Sidecar->>Sidecar: write temporary .sha256.tmp
Sidecar->>Sidecar: os.replace(temporary_path, sidecar_path)
Export->>Manifest: _update_integrity_manifest()
Note over Export,Manifest: Manifest update failure logs a warning
alt Sidecar write fails
Sidecar-->>Export: OSError
Export-->>Export: return ExportResult(success=False, error_kind=runtime)
else Sidecar write succeeds
Sidecar-->>Export: sidecar path
Export-->>Export: return successful ExportResult
end
Sequence diagram for GGUF sidecar verificationsequenceDiagram
participant Operator
participant Verify as forgelm verify-gguf
participant File as GGUF file
participant Sidecar as .sha256 sidecar
participant GGUFPackage as Optional gguf package
Operator->>Verify: verify-gguf path
Verify->>File: read magic header
Verify->>GGUFPackage: _maybe_parse_metadata(path)
GGUFPackage-->>Verify: metadata result or skipped
Verify->>Sidecar: read <path>.sha256
Verify->>File: compute SHA-256
Verify->>Verify: compare digest
Verify-->>Operator: verification result
alt No package and no sidecar
Verify-->>Operator: clean result proves only GGUF magic
else Digest mismatch
Verify-->>Operator: exit 6
end
Flow diagram for K-quant export artifactsflowchart LR
Request["forgelm export --quant q4_k_m"] --> Intermediate["Write model.f16.gguf"]
Intermediate --> Digest["_sha256_file"]
Digest --> Sidecar["Write model.f16.gguf.sha256"]
Sidecar --> Followup["llama-quantize model.f16.gguf model.gguf Q4_K_M"]
Followup --> Final["model.gguf"]
Final --> FinalSidecar["sha256sum model.gguf > model.gguf.sha256"]
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Inline comments:
Review comments at @docs/usermanuals/en/deployment/gguf-export.md:
- Line 38: Update the intermediate GGUF naming description to say that export
replaces the output’s `.gguf` suffix with `.f16.gguf` (for example, `model.gguf`
becomes `model.f16.gguf`), rather than appending `.f16.gguf` to the full
filename. Apply the same correction to the Turkish mirror.
- Line 71: Qualify the `exported_artifacts` update as best-effort in the English
and Turkish introductory and manifest text: state that invalid existing JSON or
a write failure causes `_update_integrity_manifest` to log a warning, while
export succeeds without guaranteeing a manifest entry.
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📒 Files selected for processing: 10
CHANGELOG.mddocs/reference/verify_gguf_subcommand-tr.mddocs/reference/verify_gguf_subcommand.mddocs/usermanuals/en/deployment/gguf-export.mddocs/usermanuals/en/deployment/verify-gguf.mddocs/usermanuals/tr/deployment/gguf-export.mddocs/usermanuals/tr/deployment/verify-gguf.mdforgelm/export.pyforgelm/verify/_gguf.pytests/test_export.py
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…est entry is best effort Review findings on the export page: the K-quant intermediate is the output name with its .gguf suffix replaced by .f16.gguf (model.gguf becomes model.f16.gguf), not <output>.f16.gguf appended; and the exported_artifacts entry is best effort, because _update_integrity_manifest logs a warning and the export succeeds when model_integrity.json is not valid JSON or cannot be written. English and Turkish. Refs #84 Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
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Superseded by #998: the wave-0 fixes are combined by theme into five pull requests to cut the review load. This branch's commits are included there unchanged apart from the |
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…cument the converter requirement (#998) ## Summary `forgelm export` now writes the SHA-256 sidecar that `forgelm verify-gguf` and the documentation already assumed, and the GGUF documentation describes what really happens. Two earlier pull requests combined into one (#982 and #995, which will be closed as superseded); the bot findings on #982 are folded in. ## Related issues Refs #84, #85, #86 (docs), #83, #113. Making `verify-gguf` stricter than "magic header + optional sidecar", and searching the locations real llama-cpp-python wheels use for the converter, are separate changes and stay open. The site strings that mention the sidecar are in a later pull request. ## Changes ### Sidecar (was #982) - `forgelm/export.py`: after the GGUF is written and hashed, `<output>.sha256` is written in `sha256sum` format (`<digest> *<name>`) through a temporary file and `os.replace`. A write failure returns `success=False` (runtime error, exit 2) naming the GGUF path. For a K-quant request the file written is the intermediate `.f16.gguf` and the sidecar belongs to it. The `model_integrity.json` update failure is now a `WARNING`, not `DEBUG`. - The sidecar detects corruption and accidental change; it is **not** tamper evidence, because whoever can replace the GGUF can replace the sidecar next to it. The docs say so. - `docs/usermanuals/{en,tr}/deployment/{gguf-export,verify-gguf}.md` and `docs/reference/verify_gguf_subcommand{,-tr}.md`: real output, the K-quant two-step flow, the real `exported_artifacts` JSON, what `verify-gguf` checks and what it cannot, and the `--adapter` pitfall. Review findings applied: the intermediate file is named by replacing `.gguf` with `.f16.gguf`; the manifest entry is best effort. ### Converter script (was #995) - `pip install 'forgelm[export]'` does not provide `convert_hf_to_gguf.py`: no released llama-cpp-python wheel puts it where ForgeLM searches (0.2.90 installs it under `bin/`, 0.3.x does not ship it). The installation page, CLI reference, usage and quickstart guides, the notebook, `pyproject.toml` comment and `export.py` docstring now say to point `FORGELM_GGUF_CONVERTER` at the script in a llama.cpp checkout; the upstream repository location, requirements path and imports were checked. - The not-found error message names `FORGELM_GGUF_CONVERTER` and a llama.cpp checkout instead of advising a reinstall. ## Type - [x] Feature (sidecar) - [x] Documentation ## Testing - `tests/test_export.py`: sidecar format and content, `sha256sum -c` and `verify-gguf` accept it, atomic write and cleanup, K-quant sidecar, failure path, plus the new converter hint test (**fails against the old message**). - The full `CLAUDE.md` gauntlet from a clean worktree of this branch: exit 0. ## Checklist - [x] English and Turkish mirrors updated together (Turkish wording needs the owner's review) - [x] CHANGELOG entries under `[Unreleased]` - [x] Tests added 🤖 Generated with [Claude Code](https://claude.com/claude-code) ## Summary by Sourcery Add reliable SHA-256 sidecars to GGUF export and align converter requirements, verification behavior, and user documentation with the implemented workflow. New Features: - Write SHA-256 sidecar files for exported GGUF artifacts, including intermediate files produced for K-quant requests. - Fail exports when the required sidecar cannot be written and elevate integrity-manifest update failures to warnings. Bug Fixes: - Correct GGUF export and verification documentation to reflect actual outputs, checks, limitations, K-quant workflow, and adapter usage. - Correct converter setup guidance and error messaging to require a llama.cpp checkout through FORGELM_GGUF_CONVERTER. Enhancements: - Clarify that sidecars detect accidental corruption but do not provide tamper evidence. - Document the actual exported_artifacts manifest structure and verification behavior in English and Turkish documentation. Documentation: - Update installation, CLI, usage, quickstart, notebook, and GGUF deployment documentation with the llama.cpp converter prerequisite and sidecar workflow. Tests: - Add coverage for sidecar format, verification, atomic cleanup, K-quant output, write failures, manifest warnings, and converter guidance. Chores: - Update the unreleased changelog and related export comments and docstrings. --------- Co-authored-by: Claude Sonnet 5.5 <noreply@anthropic.com>
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Summary
forgelm exportnow writes the<output>.sha256sidecar thatforgelm verify-ggufand the documentation have always described as something the exporter produces. It never did, so the sidecar check had nothing to compare unless the operator created the file by hand. The GGUF pages are corrected in the same change so they describe what the code does.Related issues
Refs #83, #84, #85 — #84 (the missing sidecar) is resolved here; #83 (a clean
verify-ggufexit on a magic-only check) and #85 (the inventedverify-ggufoutput) are resolved in documentation only, so those issues stay open for the code half.Changes
forgelm/export.py— after the conversion, writes<output>.sha256insha256sumbinary-mode format (<hex> *<name>) through a temporary name and a rename. A sidecar that cannot be written fails the export (success=False,error_kind="runtime", so exit 2) and the digest is still reported; the alternative was a GGUF the documentation says is covered but is not. For a K-quant request the file written is the intermediate*.f16.gguf, so the sidecar belongs to that file. Amodel_integrity.jsonthat cannot be updated is now logged as a warning, not at debug level.docs/usermanuals/{en,tr}/deployment/gguf-export.md— real export output; K-quants described as the two-step operation they are (the defaultq4_k_mincluded), with thellama-quantizecommand the exporter prints; the invented "manifest" JSON replaced by the realexported_artifactsentry; the inventedverify-ggufoutput (vocabulary and tokenizer checks that do not exist) replaced by the real one; "always merges LoRA" corrected to "only with--adapter".docs/usermanuals/{en,tr}/deployment/verify-gguf.md,docs/reference/verify_gguf_subcommand{,-tr}.md,forgelm/verify/_gguf.pydocstring — a clean exit proves only what ran (with neither theggufpackage nor a sidecar, only the four magic bytes); the sidecar is described as corruption detection, not tamper evidence.tests/test_export.py: the sidecar's content and format, thatverify-ggufaccepts it and catches a later change (independent of whether the optionalggufpackage is installed), that the suffix constant equals the one the verifier uses, the K-quant case, a failing write (no leftover temporary file; the export reports failure), and the warning on an unreadable manifest. A deliberately broken writer makes three of them fail.Behaviour change to be aware of
An export whose sidecar cannot be written now exits 2. It practically cannot happen right after the GGUF was written to the same directory, but it is a change from "silently no sidecar".
Not done here (still open on the issues)
verify-ggufstill passes a file with a GGUF magic, noggufpackage and no sidecar (verify-gguf without the gguf package and without a sidecar accepts any file that starts with 'GGUF' (CR-A09-002) #83). The fix is an opt-in "strong layer ran" flag and an exit-code decision; the wording now says so.pip install 'forgelm[export]'(GGUF export never finds convert_hf_to_gguf.py in a real llama-cpp-python install, so the defaultforgelm exportpath always fails (CR-A13-005) #113), and the site copy that says "SHA-256 + size manifest" (Site copy in six languages says verify-gguf 're-checks the SHA-256 + size manifest stamped at export time'. It checks no size, and nothing reads the export-stamped record (CR-A18-009) #86) is a separate change (six languages).risks-and-decisions.md(C-3, C-4, C-11) chose code fixes over documentation fixes for these. The documentation changes here describe today's behaviour and are interim for the parts the code does not yet deliver.Type
Testing
CLAUDE.mdgauntlet from a clean worktree of this branch: exit 0.Checklist
[Unreleased](Added and Fixed)🤖 Generated with Claude Code
Summary by Sourcery
Write verifiable SHA-256 sidecars for GGUF exports and bring related documentation and tests in line with the implemented behavior.
New Features:
Bug Fixes:
Enhancements:
Documentation:
Tests:
Chores:
Summary by CodeRabbit