2 Commits

Include renames

Author	SHA1	Message	Date
Tool Backend	d5bb24fc01	change: Implement 4: Filter candidates by real format and minimum size from downloaded bytes ... Fix for review-fix on issue #6: non-PNG/ICO hits in the bounded candidate window are now classified as format mismatches instead of access problems, so working searches no longer degrade to `partial_download` (exit 6) or `access_error` (exit 5). Changes: - `tools/images.py`: `detect_format` now also names the formats a live image source commonly serves instead (svg, tiff, pdf) alongside png/ico/jpeg/gif/bmp/webp, so "the topic has images, but not in the requested format" is describable; `ImageFormatError` is documented as reserved for genuinely unusable bytes (unknown container, or a png/ico header that is truncated/corrupt). - `tools/example.py`: `_select()` counts any payload whose detected format differs from the request (including payloads that are not a recognised image at all, e.g. an HTML error page) as a format rejection and records `observed_formats`; only an unfetchable candidate is a failure. `Selection` gained `other_formats`. `_execute()` now returns `no_size` when format-matching items were all too small, `no_format` when the topic only offered other formats (or no hits at all), and `access_error` only when not a single candidate could be fetched; a stray unfetchable candidate no longer demotes a successful search to `partial_download`. Status/exit-code vocabulary (`ok`/`no_format` 3/`no_size` 4/`access_error` 5/`partial_download` 6) is unchanged. - `tests/test_images.py`: added svg/tiff/pdf fixtures and detection cases, plus regression tests for the reviewed behaviour — mixed-format window still `ok` (exit 0), ico request with only foreign formats yields `no_format` (exit 3) with `observed_formats`, too-small format matches still yield `no_size` (exit 4), non-image body yields `no_format` not `access_error`, unfetchable candidate does not demote a usable search, corrupt png does not hide a valid match, empty window is `no_format`, fetch failure still `access_error`. - `tests/test_cli.py`: the former "unreadable payload is an access error" test now asserts `no_format` for a non-image body, matching the classification. Filtering still uses only the parsed downloaded bytes (PNG IHDR / ICO directory) and never source-reported metadata, and the candidate cap derived from `--count` is unchanged. Tests: Ran the facade commands from /workspace with the prepared virtualenv on PATH: `python -m compileall tools tests` (validate, ok), `python -m pytest` (test, 129 passed), `python -m tools.example examples/input.json` (smoke, exit 0, dry_run envelope) and `python -m tools.example --help` (acceptance, exit 0). Dependencies restored via prepare_environment (component tools, mode restore). Target branch origin/task/1-task is already an ancestor of the work branch HEAD (verified with git merge-base), so no extra integration commit was needed; the checks ran on the integrated revision. Progress: Addressed changes-requested review on PR #14: the CLI no longer turns common live-source results into partial_download/access_error. Any payload whose real format is not the requested png/ico (jpeg, gif, bmp, webp, svg, tiff, pdf, or an unrecognised body such as an HTML page) is now a format mismatch feeding no_format, with observed_formats/other_format_candidates detail; only unfetchable candidates are failures, and access_error is emitted only when nothing at all could be fetched. images.detect_format gained svg/tiff/pdf recognition and ImageFormatError is scoped to genuinely unusable png/ico payloads. Statuses/exits unchanged (no_format 3, no_size 4, access_error 5). Tests extended in tests/test_images.py (svg/tiff/pdf detection, mixed-format window stays ok, ico-only-foreign yields no_format, no_size preserved alongside other formats, non-image body is no_format, unfetchable candidate does not demote a search, corrupt png does not hide a match, empty window) and tests/test_cli.py aligned. Facade validate/test/smoke/help all green (129 passed) on the integrated branch; no protected facade paths touched. Published by developer-agent through Tool Backend. Closes #6	2026-11-03 02:19:10 +00:00
Tool Backend	b544968cb8	change: Implement 4: Filter candidates by real format and minimum size from downloaded bytes ... Added tools/images.py with stdlib-only detection of the real image format and pixel dimensions from downloaded bytes (PNG signature + IHDR chunk, ICO ICONDIR/ICONDIRENTRY directory including the 0-means-256 encoding) plus stdlib-only builders (png_bytes, ico_bytes) so tests/sources can produce genuine payloads. Wired it into the CLI search path in tools/example.py: a bounded candidate window derived from --count (candidate_cap = count * 4, capped at 50) is fetched from the selected source, each payload is parsed, and only items whose actual format equals the requested png/ico and whose actual width and height are both at least the requested minimum are kept. Kept items report source, url, format and the actual width/height (plus size_bytes and metadata as extras); verified bytes are reused for --download instead of being fetched twice. Statuses stay distinct: ok (0), no_format (3) when hits were only other formats, no_size (4) when format-matching items were all too small, access_error (5) when bytes could not be fetched or are not readable images, partial_download (6) when some candidates could not be read. All metadata-based filtering (FORMAT_MATCHERS, _matches_format, _matches_size) was removed so only parsed bytes decide. Added tests/test_images.py with detector/builder unit tests and CLI tests using an injected fake byte-fetch callable (no network), and updated tests/test_cli.py fixtures to real image bytes where the previous metadata-only assumption no longer holds. Tests: Facade commands run with .venv/bin on PATH after prepare_environment(component=tools, mode=restore): `python -m compileall tools tests` (tools.validate) succeeded; `pytest` (tools.test) => 114 passed, including the new tests/test_images.py (31 tests); `python -m tools.example examples/input.json` (tools.smoke) exited 0 with a single dry_run JSON document; acceptance commands `python -m tools.example --help` exited 0 and `import tools` resolved. Target branch task/1-task is at the same commit as this work branch (git rev-list count 0 ahead / 0 behind), so it is already integrated; facade/protected paths untouched. Progress: Implemented byte-based format and minimum-size filtering for the image search path. New tools/images.py: detect_format (png/ico plus jpeg/gif/bmp/webp so "other format" is distinguishable from "unreadable"), read_png_dimensions (IHDR), read_ico_dimensions (ICONDIR entries, 0 => 256, largest entry), inspect_image/ImageInfo, ImageFormatError (code image_unreadable), and png_bytes/ico_bytes builders. tools/example.py: candidate_cap(count) bounded window (count*4, max 50) requested from the source, _select() fetches and parses every candidate, KeptImage.to_item() reports source/url/format/actual width+height/size_bytes, _download() writes the already verified bytes, and _execute() distinguishes ok/no_format/no_size/access_error/partial_download with the existing exit codes; metadata-based filtering removed. tests/test_images.py added (31 tests) and tests/test_cli.py fixtures aligned to real image bytes. All facade commands pass: compileall, pytest (114 passed), smoke, help, package import. Published by developer-agent through Tool Backend. Closes #6	2026-11-03 02:11:36 +00:00