[packaging] Add Debian + RPM packaging

.dockerignore

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+# VCS
+.git/
+.gitignore
+
+# Python build artifacts
+*.egg-info/
+__pycache__/
+*.py[cod]
+*.so
+build/
+dist/
+.eggs/
+
+# Packaging outputs (avoid re-bundling previous build products)
+debian-packages/
+rpm-packages/
+
+# Editor / OS
+.vscode/
+.idea/
+.DS_Store

.github/workflows/build-deb.yml

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+name: Build Debian Packages
+
+on:
+  push:
+    tags:
+      - 'v*'
+  pull_request:
+    branches: [main]
+    paths:
+      - 'packaging/debian/**'
+      - 'src/**'
+      - 'pyproject.toml'
+      - '.github/workflows/build-deb.yml'
+  workflow_dispatch:
+
+jobs:
+  build-deb:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          submodules: recursive
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Build .deb
+        run: bash packaging/debian/build-helpers/build-flagtensor.sh
+
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: flagtensor-amd64-packages
+          path: debian-packages/*.deb
+          retention-days: 7

.github/workflows/build-rpm.yml

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+name: Build RPM Packages
+
+on:
+  push:
+    tags:
+      - 'v*'
+  pull_request:
+    branches: [main]
+    paths:
+      - 'packaging/rpm/**'
+      - 'src/**'
+      - 'pyproject.toml'
+      - '.github/workflows/build-rpm.yml'
+  workflow_dispatch:
+
+jobs:
+  build-rpm:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          submodules: recursive
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Build .rpm
+        run: bash packaging/rpm/build-flagtensor-rpm.sh
+
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: flagtensor-amd64-rpm-packages
+          path: rpm-packages/*.rpm
+          retention-days: 7

packaging/INSTALL.md

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+# Installing python3-flagtensor
+
+After `apt install python3-flagtensor` (Debian/Ubuntu) or `dnf install python3-flagtensor` (Fedora),
+install the ML runtime separately — it is intentionally **not** declared as a
+hard Depends/Requires because the distro versions are CPU-only (torch) or
+too old (triton) for GPU workloads.
+
+FlagTensor needs PyTorch (GPU build) and Triton at runtime:
+
+```bash
+pip install --index-url https://download.pytorch.org/whl/cu128 torch==2.9.0+cu128
+pip install triton
+```
+
+A `venv` is recommended to isolate pip-installed packages from the system
+Python:
+
+```bash
+python3 -m venv ~/.venv/flagos
+source ~/.venv/flagos/bin/activate
+# then the pip install lines above
+```
+
+Note: the distro `python3-torch` package (CPU-only build) is intentionally
+not pulled in — FlagOS workloads need a GPU build, which PyTorch upstream
+distributes via PyPI (per-CUDA-version wheels), not as a `.deb` / `.rpm`.

packaging/debian/build-helpers/Dockerfile.deb

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+ARG BASE_IMAGE_VERSION=24.04
+FROM ubuntu:${BASE_IMAGE_VERSION}
+ENV DEBIAN_FRONTEND=noninteractive
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+        build-essential debhelper devscripts dpkg-dev fakeroot \
+        dh-python pybuild-plugin-pyproject \
+        python3-all python3-pip python3-setuptools python3-wheel \
+        git ca-certificates \
+        lintian \
+    && apt-get clean && rm -rf /var/lib/apt/lists/*
+
+
+COPY . /workspace/FlagTensor
+WORKDIR /workspace/FlagTensor
+
+RUN cp -r packaging/debian debian
+
+RUN dpkg-buildpackage -us -uc -b || \
+    { echo "=== build failed ===" >&2; \
+      find /workspace -name "*.log" -exec echo "=== {} ===" \; -exec cat {} \; 2>/dev/null || true; \
+      exit 1; }
+
+# Run lintian against the produced .deb — surface packaging warnings
+# (unused-license-paragraph, no-manual-page, missing-build-dependency, etc.)
+# in the build log without failing the build.
+RUN lintian --info --display-info /workspace/python3-flagtensor_*.deb || true
+
+RUN mkdir -p /output && \
+    find /workspace -maxdepth 1 -name "*.deb" -exec cp {} /output/ \; && \
+    find /workspace -maxdepth 1 -name "*.changes" -exec cp {} /output/ \; && \
+    ls -lh /output/

packaging/debian/build-helpers/build-flagtensor.sh

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+#!/usr/bin/env bash
+set -euo pipefail
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+PROJECT_DIR="$(dirname "$(dirname "$(dirname "$SCRIPT_DIR")")")"
+BASE_IMAGE_VERSION="${1:-24.04}"
+IMAGE_TAG="flagtensor-deb:${BASE_IMAGE_VERSION}"
+OUTPUT_DIR="${PROJECT_DIR}/debian-packages"
+
+docker build --network=host \
+    -f "${SCRIPT_DIR}/Dockerfile.deb" \
+    --build-arg BASE_IMAGE_VERSION="$BASE_IMAGE_VERSION" \
+    -t "$IMAGE_TAG" "$PROJECT_DIR"
+
+mkdir -p "$OUTPUT_DIR"
+CID=$(docker create "$IMAGE_TAG")
+docker cp "$CID:/output/." "$OUTPUT_DIR/"
+docker rm "$CID" > /dev/null
+
+echo ""; echo ">>> Output:"; ls -lh "$OUTPUT_DIR"

packaging/debian/changelog

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+flagtensor (0.1.0-1) unstable; urgency=medium
+
+  * Initial Debian packaging.
+
+ -- FlagOS Contributors <contact@flagos.io>  Tue, 12 May 2026 12:00:00 +0000

packaging/debian/control

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+Source: flagtensor
+Section: python
+Priority: optional
+Maintainer: FlagOS Contributors <contact@flagos.io>
+Build-Depends: debhelper-compat (= 13),
+               dh-python,
+               python3-all,
+               python3-setuptools,
+               python3-wheel,
+               pybuild-plugin-pyproject
+Standards-Version: 4.6.2
+Homepage: https://github.com/flagos-ai/FlagTensor
+Vcs-Browser: https://github.com/flagos-ai/FlagTensor
+Vcs-Git: https://github.com/flagos-ai/FlagTensor.git
+Rules-Requires-Root: no
+
+Package: python3-flagtensor
+Architecture: all
+Depends: python3:any, ${misc:Depends}, python3-matplotlib, python3-openpyxl
+# python3-torch and triton are intentionally NOT declared. distro torch is
+# CPU-only, triton has no current distro package. Install both via pip
+# (see packaging/INSTALL.md).
+Description: FlagTensor — tensor utilities for FlagOS
+ Tensor manipulation utilities (reshape/permute/index helpers) used across the FlagOS operator libraries.

packaging/debian/copyright

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+Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
+Upstream-Name: FlagTensor
+Upstream-Contact: FlagOS Contributors <contact@flagos.io>
+Source: https://github.com/flagos-ai/FlagTensor
+
+Files: *
+Copyright: 2024-2026 Beijing Academy of Artificial Intelligence (BAAI)
+           2024-2026 FlagTensor contributors
+License: Apache-2.0
+
+License: Apache-2.0
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ .
+     http://www.apache.org/licenses/LICENSE-2.0
+ .
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ .
+ On Debian systems, the full text of the Apache 2.0 License is in
+ /usr/share/common-licenses/Apache-2.0.

packaging/debian/rules

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+#!/usr/bin/make -f
+export DH_VERBOSE = 1
+export PYBUILD_NAME = flagtensor
+
+%:
+	dh $@ --with python3 --buildsystem=pybuild
+
+# Smoke find_spec test (not actual import) — verifies the built
+# module lands at the expected path. Doesn't import the module
+# because module-level deps (torch, triton, cupy, ...) are install-
+# time concerns not satisfied in the build container. Catches:
+# wrong install path, missing __init__.py, dh_python install bugs.
+# Note: prior version used `import ; exit 0` which silently passed
+# on import failures. Fixed with && short-circuit.
+override_dh_auto_test:
+	@echo "=== smoke find_spec test ==="
+	# Use found_dir + break (not `&& exit 0` inside the loop) so future
+	# multi-Python builds verify every interpreter rather than stopping
+	# at the first match.
+	@found_dir=""; \
+	for d in .pybuild/cpython3_*/build; do \
+	    if [ -d "$$d/flagtensor" ]; then \
+	        found_dir="$$d"; \
+	        break; \
+	    fi; \
+	done; \
+	if [ -z "$$found_dir" ]; then \
+	    echo "ERROR: could not find a built flagtensor module"; \
+	    exit 1; \
+	fi; \
+	echo "Found build dir: $$found_dir"; \
+	PYTHONDONTWRITEBYTECODE=1 PYTHONPATH="$$found_dir" python3 -c \
+	    "import importlib.util; s = importlib.util.find_spec('flagtensor'); assert s and s.origin, 'flagtensor not findable'; print('OK: flagtensor at', s.origin)"
+

packaging/debian/source/format

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+3.0 (native)

packaging/rpm/build-flagtensor-rpm.sh

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+#!/usr/bin/env bash
+set -euo pipefail
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+PROJECT_DIR="$(dirname "$(dirname "$SCRIPT_DIR")")"
+BASE_IMAGE_VERSION="${1:-43}"
+IMAGE_TAG="flagtensor-rpm:f${BASE_IMAGE_VERSION}"
+OUTPUT_DIR="${PROJECT_DIR}/rpm-packages"
+
+docker build --network=host \
+    -f "${SCRIPT_DIR}/dockerfiles/Dockerfile.rpm" \
+    --build-arg BASE_IMAGE_VERSION="$BASE_IMAGE_VERSION" \
+    -t "$IMAGE_TAG" "$PROJECT_DIR"
+
+mkdir -p "$OUTPUT_DIR"
+CID=$(docker create "$IMAGE_TAG")
+docker cp "$CID:/output/." "$OUTPUT_DIR/"
+docker rm "$CID" > /dev/null
+
+echo ""; echo ">>> Output:"; ls -lh "$OUTPUT_DIR"

packaging/rpm/dockerfiles/Dockerfile.rpm

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+ARG BASE_IMAGE=fedora
+ARG BASE_IMAGE_VERSION=43
+
+FROM ${BASE_IMAGE}:${BASE_IMAGE_VERSION}
+
+RUN dnf install -y \
+    rpm-build rpmdevtools pyproject-rpm-macros \
+    python3-devel python3-setuptools python3-wheel python3-pip \
+    && dnf clean all
+
+RUN rpmdev-setuptree
+
+COPY . /workspace/FlagTensor
+
+RUN SPEC_VERSION=$(grep '^Version:' /workspace/FlagTensor/packaging/rpm/specs/flagtensor.spec | awk '{print $2}') && \
+    tar czf /root/rpmbuild/SOURCES/flagtensor-${SPEC_VERSION}.tar.gz \
+        -C /workspace/FlagTensor \
+        --exclude='./.git' \
+        --transform "s|^\\./|flagtensor-${SPEC_VERSION}/|" \
+        .
+
+RUN rpmbuild -ba /workspace/FlagTensor/packaging/rpm/specs/flagtensor.spec 2>&1 || \
+    { echo "=== build failed ==="; \
+      find /root/rpmbuild -name "*.log" -exec echo "=== {} ===" \; -exec cat {} \; 2>/dev/null || true; \
+      exit 1; }
+
+RUN mkdir -p /output && \
+    find /root/rpmbuild/RPMS  -name "*.rpm" -exec cp {} /output/ \; && \
+    find /root/rpmbuild/SRPMS -name "*.rpm" -exec cp {} /output/ \; && \
+    ls -lh /output/

packaging/rpm/specs/flagtensor.spec

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+%global debug_package %{nil}
+
+# Filter the auto-generated Requires for: torch + triton.
+# Reason: distro torch is CPU-only; distro triton has no current version. Users install both via pip.
+# See packaging/INSTALL.md (or future flagos-packaging install docs) for the
+# user-side pip install incantation.
+%global __requires_exclude ^python3(\.[0-9]+)?dist\((torch|triton)\)$
+Name:           python3-flagtensor
+Version:        0.1.0
+Release:        1%{?dist}
+Summary:        FlagTensor — tensor utilities for FlagOS
+
+License:        Apache-2.0
+URL:            https://github.com/flagos-ai/FlagTensor
+Source0:        %{url}/archive/refs/tags/v%{version}.tar.gz#/flagtensor-%{version}.tar.gz
+BuildArch:      noarch
+BuildRequires:  python3-devel
+BuildRequires:  python3-setuptools >= 60
+BuildRequires:  python3-wheel
+BuildRequires:  python3-pip
+BuildRequires:  pyproject-rpm-macros
+
+%description
+Tensor manipulation utilities (reshape/permute/index helpers) used across the FlagOS operator libraries.
+
+%prep
+%autosetup -n flagtensor-%{version}
+
+%build
+%pyproject_wheel
+
+%install
+%pyproject_install
+%pyproject_save_files flagtensor
+
+%check
+# Smoke find_spec test (no actual import) — verifies the built module
+# lands at the expected sitelib path. Doesn't import the module so
+# missing runtime deps (torch, triton, ...) don't trip the check;
+# those are user-install-time concerns, not packaging concerns.
+PYTHONDONTWRITEBYTECODE=1 \
+    PYTHONPATH=%{buildroot}%{python3_sitelib} \
+    python3 -c "import importlib.util; s = importlib.util.find_spec('flagtensor'); assert s and s.origin, 'flagtensor not findable'; print('OK: flagtensor at', s.origin)"
+
+%files -f %{pyproject_files}
+%license LICENSE
+
+%changelog
+* Wed May 13 2026 FlagOS Contributors <contact@flagos.io> - 0.1.0-1
+- Initial RPM packaging.