C Coverage Tool

This tool analyzes C code coverage on Linux by consuming data produced by gcov or lcov. It computes an overall coverage percentage and per-file metrics to identify weak areas in the test suite. Conceptually, it treats coverage as a ratio of executed to total instrumented lines, aggregating results across modules for a unified view. It supports filtering by include/exclude directories, multiple compilation units, and different test runs. The tool outputs a structured report suitable for downstream processing and auditing, enabling teams to track coverage trends over time and justify test investments. It is designed to slot into CI pipelines, maximizing developer feedback without requiring bespoke tooling. Unique value derives from its ability to normalize diffs from different build configurations, produce standardized JSON reports, and offer delta calculations against prior scans. Use cases include pre-release quality gates, risk assessment for new features, and verification of test adequacy in legacy codebases. Core features include data-source abstraction (gcov or lcov), per-file and aggregate coverage, threshold checks, and exportable artifacts for dashboards. By focusing on Linux environments and GCC-based toolchains, it delivers consistent results across environments and simplifies coverage governance.