OPM/opm-common
Nov 2024 – Sep 2025
6 Months active
Languages Used
C++CMakeJSONPythoncmake
Technical Skills
C++Code RefactoringSoftware DevelopmentC++ DevelopmentCMakeSoftware Design
Håkon Hægland
PROFILE
Håkon Hægland
Håkon Hagland contributed to the OPM/opm-common repository by developing flexible input parsing, template-driven documentation, and modernized build systems. He implemented runtime keyword handling in C++ to enhance simulation flexibility, introduced template-based docstring generation using Python and JSON for scalable header documentation, and improved build and packaging workflows with CMake and PEP 517-compliant Python packaging. His work included const-correctness refactoring, interface cleanup, and compiler warning suppression to ensure maintainability and upgrade readiness. By focusing on code clarity, testability, and automation, Håkon delivered robust solutions that improved developer productivity, code quality, and long-term maintainability across the codebase.
Overall Statistics
Feature vs Bugs
88%Features
Repository Contributions
13Total
Bugs
1
Commits
13
Features
7
Lines of code
444
Activity Months6
Work History
September 2025
5 Commits • 2 Features
Sep 1, 2025September 2025: Delivered enhancements to test workflow and build hygiene in OPM/opm-common, enabling faster developer iteration, more reliable tests, and cleaner packaging configurations. Implemented per-test build/run with automatic data copy to the test build dir; modernized the Python build system (PEP 517, setuptools upgrade, removal of deprecated setup_args), and formalized licensing via SPDX. Also aligned CMake usage to reduce developer warnings and follow best practices.
5 Commits • 2 Features
Sep 1, 2025September 2025: Delivered enhancements to test workflow and build hygiene in OPM/opm-common, enabling faster developer iteration, more reliable tests, and cleaner packaging configurations. Implemented per-test build/run with automatic data copy to the test build dir; modernized the Python build system (PEP 517, setuptools upgrade, removal of deprecated setup_args), and formalized licensing via SPDX. Also aligned CMake usage to reduce developer warnings and follow best practices.
September 2025
August 2025
1 Commits • 1 Features
Aug 1, 2025August 2025 monthly summary for OPM/opm-common focusing on feature delivery and technical excellence. This period centered on enhancing automatic C++ header documentation through a template-driven approach, enabling scalable, consistent docstrings generation from a new template-based JSON format while preserving existing workflows.
August 2025
1 Commits • 1 Features
Aug 1, 2025August 2025 monthly summary for OPM/opm-common focusing on feature delivery and technical excellence. This period centered on enhancing automatic C++ header documentation through a template-driven approach, enabling scalable, consistent docstrings generation from a new template-based JSON format while preserving existing workflows.
April 2025
1 Commits
Apr 1, 2025Month: 2025-04 Overview In OPM/opm-common, delivered a build-system refinement to improve GCC 14.2 compatibility without changing runtime behavior. This work reduces compiler warning noise, strengthens upgrade readiness, and enhances maintainability across CI pipelines. Key contributions - Feature delivered: Build-system adjustments to suppress tautological comparison warnings in GCC 14.2, enabling compatibility with newer compiler versions while preserving existing functionality. Major bugs fixed - Compiler warnings related to the format library under GCC 14.2.0 fixed by updating CMake configuration to suppress tautological comparison warnings. No changes to core logic. Commit: f70cb32636331cb3ae5a82fcce1069e9754f475c. Overall impact and accomplishments - Improved build stability and maintainability for future GCC upgrades. Reduced CI noise and potential upgrade blockers. No behavioral changes to library functionality. Technologies/skills demonstrated - CMake build-system tuning - GCC 14.2+ compatibility adjustments - Build automation and maintenance discipline - Change management for compiler upgrade readiness
1 Commits
Apr 1, 2025Month: 2025-04 Overview In OPM/opm-common, delivered a build-system refinement to improve GCC 14.2 compatibility without changing runtime behavior. This work reduces compiler warning noise, strengthens upgrade readiness, and enhances maintainability across CI pipelines. Key contributions - Feature delivered: Build-system adjustments to suppress tautological comparison warnings in GCC 14.2, enabling compatibility with newer compiler versions while preserving existing functionality. Major bugs fixed - Compiler warnings related to the format library under GCC 14.2.0 fixed by updating CMake configuration to suppress tautological comparison warnings. No changes to core logic. Commit: f70cb32636331cb3ae5a82fcce1069e9754f475c. Overall impact and accomplishments - Improved build stability and maintainability for future GCC upgrades. Reduced CI noise and potential upgrade blockers. No behavioral changes to library functionality. Technologies/skills demonstrated - CMake build-system tuning - GCC 14.2+ compatibility adjustments - Build automation and maintenance discipline - Change management for compiler upgrade readiness
April 2025
January 2025
4 Commits • 2 Features
Jan 1, 2025January 2025 (OPM/opm-common) – Focused on safety, correctness, and interface clarity to strengthen maintainability and long-term business value. Implemented const-correctness and reference-based optimizations in MasterMinimumTimeStep, and completed API/interface cleanup for MasterMinimumTimeStep and ReservoirCouplingInfo to improve readability and future-proofing of the public API. No client-facing features were delivered this month; however, the changes reduce risk of unintended mutations, lower allocations, and align naming with usage patterns, enabling faster future development and safer integration.
January 2025
4 Commits • 2 Features
Jan 1, 2025January 2025 (OPM/opm-common) – Focused on safety, correctness, and interface clarity to strengthen maintainability and long-term business value. Implemented const-correctness and reference-based optimizations in MasterMinimumTimeStep, and completed API/interface cleanup for MasterMinimumTimeStep and ReservoirCouplingInfo to improve readability and future-proofing of the public API. No client-facing features were delivered this month; however, the changes reduce risk of unintended mutations, lower allocations, and align naming with usage patterns, enabling faster future development and safer integration.
December 2024
1 Commits • 1 Features
Dec 1, 2024December 2024 monthly summary – OPM/opm-common: Key features delivered: - Implemented support for the DUMPCUPL keyword to control the output format of coupling files. This included adding new C++ source and header files to handle the keyword, integrating it into the existing handler system, and updating the ReservoirCouplingInfo to store the coupling file flag. - Established comprehensive unit tests for functionality and error handling to ensure robustness of the new keyword support. Major bugs fixed: - No major bugs reported in the provided scope for this month. Overall impact and accomplishments: - Increased configurability and reliability of coupling file outputs, enabling more flexible experimentation and consistent file formats across environments. - Improved test coverage and code maintainability through focused unit tests and clear integration points. - Traceable work with a dedicated commit: cd373b1b91d8068e802243003049b03743c1e6c0. Technologies/skills demonstrated: - C++ development, including new source/header creation and integration into an existing codebase - Systems integration within a handler framework and data model updates (ReservoirCouplingInfo) - Test-driven development with unit tests for positive and error scenarios - Version control discipline with a focused commit contributing to a feature branch
1 Commits • 1 Features
Dec 1, 2024December 2024 monthly summary – OPM/opm-common: Key features delivered: - Implemented support for the DUMPCUPL keyword to control the output format of coupling files. This included adding new C++ source and header files to handle the keyword, integrating it into the existing handler system, and updating the ReservoirCouplingInfo to store the coupling file flag. - Established comprehensive unit tests for functionality and error handling to ensure robustness of the new keyword support. Major bugs fixed: - No major bugs reported in the provided scope for this month. Overall impact and accomplishments: - Increased configurability and reliability of coupling file outputs, enabling more flexible experimentation and consistent file formats across environments. - Improved test coverage and code maintainability through focused unit tests and clear integration points. - Traceable work with a dedicated commit: cd373b1b91d8068e802243003049b03743c1e6c0. Technologies/skills demonstrated: - C++ development, including new source/header creation and integration into an existing codebase - Systems integration within a handler framework and data model updates (ReservoirCouplingInfo) - Test-driven development with unit tests for positive and error scenarios - Version control discipline with a focused commit contributing to a feature branch
December 2024
November 2024
1 Commits • 1 Features
Nov 1, 2024November 2024 monthly summary for developer work on OPM/opm-common focusing on features delivered, bugs fixed, and impact.
November 2024
1 Commits • 1 Features
Nov 1, 2024November 2024 monthly summary for developer work on OPM/opm-common focusing on features delivered, bugs fixed, and impact.
Activity
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Quality Metrics
Correctness93.0%
Maintainability92.4%
Architecture92.4%
Performance86.2%
AI Usage20.0%
Skills & Technologies
Programming Languages
C++CMakeJSONPythoncmake
Technical Skills
Build SystemBuild System ConfigurationBuild SystemsC++C++ DevelopmentCMakeCode ClarityCode GenerationCode RefactoringCode StyleCompiler WarningsJSON ParsingPackagingPythonPython Packaging
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