apunkt/trustgraph
1
0
Fork 0
mirror of https://github.com/trustgraph-ai/trustgraph.git synced 2026-04-25 00:16:23 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

Add universal document decoder with multi-format support (#705)

Browse source 
Add universal document decoder with multi-format support
using 'unstructured'.

New universal decoder service powered by the unstructured
library, handling DOCX, XLSX, PPTX, HTML, Markdown, CSV, RTF,
ODT, EPUB and more through a single service. Tables are preserved
as HTML markup for better downstream extraction. Images are
stored in the librarian but excluded from the text
pipeline. Configurable section grouping strategies
(whole-document, heading, element-type, count, size) for non-page
formats. Page-based formats (PDF, PPTX, XLSX) are automatically
grouped by page.

All four decoders (PDF, Mistral OCR, Tesseract OCR, universal)
now share the "document-decoder" ident so they are
interchangeable.  PDF-only decoders fetch document metadata to
check MIME type and gracefully skip unsupported formats.

Librarian changes: removed MIME type whitelist validation so any
document format can be ingested. Simplified routing so text/plain
goes to text-load and everything else goes to document-load.
Removed dual inline/streaming data paths — documents always use
document_id for content retrieval.

New provenance entity types (tg:Section, tg:Image) and metadata
predicates (tg:elementTypes, tg:tableCount, tg:imageCount) for
richer explainability.

Universal decoder is in its own package (trustgraph-unstructured)
and container image (trustgraph-unstructured).
This commit is contained in:
cybermaggedon 2026-03-23 12:56:35 +00:00 • committed by GitHub
parent 4609424afe
commit 5c6fe90fe2
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
25 changed files with 2247 additions and 79 deletions
Download patch file Download diff file Expand all files Collapse all files

48
containers/Containerfile.unstructured Normal file
View file

@ -0,0 +1,48 @@
# ----------------------------------------------------------------------------
# Base container with system dependencies
# ----------------------------------------------------------------------------
FROM docker.io/fedora:42 AS base
ENV PIP_BREAK_SYSTEM_PACKAGES=1
RUN dnf install -y python3.13 && \
alternatives --install /usr/bin/python python /usr/bin/python3.13 1 && \
python -m ensurepip --upgrade && \
pip3 install --no-cache-dir build wheel aiohttp && \
pip3 install --no-cache-dir pulsar-client==3.7.0 && \
dnf clean all
# ----------------------------------------------------------------------------
# Build a container which contains the built Python packages. The build
# creates a bunch of left-over cruft, a separate phase means this is only
# needed to support package build
# ----------------------------------------------------------------------------
FROM base AS build
COPY trustgraph-base/ /root/build/trustgraph-base/
COPY trustgraph-unstructured/ /root/build/trustgraph-unstructured/
WORKDIR /root/build/
RUN pip3 wheel -w /root/wheels/ --no-deps ./trustgraph-base/
RUN pip3 wheel -w /root/wheels/ --no-deps ./trustgraph-unstructured/
RUN ls /root/wheels
# ----------------------------------------------------------------------------
# Finally, the target container. Start with base and add the package.
# ----------------------------------------------------------------------------
FROM base
COPY --from=build /root/wheels /root/wheels
RUN \
pip3 install --no-cache-dir /root/wheels/trustgraph_base-* && \
pip3 install --no-cache-dir /root/wheels/trustgraph_unstructured-* && \
rm -rf /root/wheels
WORKDIR /