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Athma Sagar

PROFILE

Athma Sagar

Athmasagar focused on stabilizing and improving build reliability across the facebook/fbthrift and facebook/buck2-prelude repositories, addressing core issues in C++ toolchains and Python packaging. He reverted a third-party hashing library in fbthrift to restore deterministic hashing, and corrected Bazel native.bzl loading in buck2-prelude to ensure proper module resolution. In later work, he fixed flaky dwp actions by dynamically including hidden dependencies in Buck2’s C++ build pipeline, and enhanced Python wheel support by expanding the link graph to capture native libraries loaded at runtime. His work demonstrated depth in build system configuration, debugging, and dependency management using Bzl, C++, and Python.

Overall Statistics

Feature vs Bugs

0%Features

Repository Contributions

4Total
Bugs
4
Commits
4
Features
0
Lines of code
81
Activity Months3

Work History

October 2025

1 Commits

Oct 1, 2025

October 2025: Key fix to Python wheel loading by dynamically including native dependencies in the link graph. Expanded the omnibus search space to account for native libraries loaded by Python, updated the python_wheel.bzl _impl to include these dependencies via SharedLibraryInfo, and ensured proper recognition of libraries loaded through torch.ops.load_library. This work reduces runtime errors and improves reliability of wheel-based deployments in Buck2-prelude, contributing to more stable PyTorch-related workflows and faster onboarding for downstream users.

August 2025

1 Commits

Aug 1, 2025

August 2025 (facebook/buck2-prelude): Consolidated a critical bug fix to eliminate flaky dwp actions by ensuring all hidden dependencies are included in the final link. The change updates cxx_gnu_dist_link to dynamically reference these dependencies, addressing regressions caused by cache hits on late-stamped, local-only actions. Result: more stable builds, fewer flaky failures, and improved determinism in the Buck2 Prelude pipeline.

January 2025

2 Commits

Jan 1, 2025

Month: 2025-01 — Focused on stabilizing core behavior and build reliability across two repos by reverting a third-party hashing path and fixing Bazel native.bzl loading, enabling downstream teams to rely on deterministic outcomes and smoother releases.

Activity

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Quality Metrics

Correctness85.0%
Maintainability85.0%
Architecture85.0%
Performance70.0%
AI Usage20.0%

Skills & Technologies

Programming Languages

BzlC++Python

Technical Skills

Build System ConfigurationBuild SystemsC++ ToolchainsC++ developmentDebuggingDependency ManagementPython Packaginglibrary managementsystem design

Repositories Contributed To

2 repos

Overview of all repositories you've contributed to across your timeline

facebook/buck2-prelude

Jan 2025 Oct 2025
3 Months active

Languages Used

BzlPython

Technical Skills

Build System ConfigurationBuild SystemsC++ ToolchainsDebuggingDependency ManagementPython Packaging

facebook/fbthrift

Jan 2025 Jan 2025
1 Month active

Languages Used

C++

Technical Skills

C++ developmentlibrary managementsystem design

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