cargoxx/CHANGELOG.md

Changelog

All notable changes to cargoxx will be documented in this file.

[Unreleased]

Added

• M0 repo skeleton: hand-written CMakeLists.txt, bootstrap flake.nix, empty C++23 module units for every component listed in TECH_SPEC.md §1 (util, exec, manifest, lockfile, layout, linkdb, resolver, codegen, cli), root module cargoxx, and a stub main.cpp that builds an empty cargoxx binary.
• .clang-format (LLVM, 100-column) and .gitignore.
• SPEC.md, TECH_SPEC.md.
• M1 foundation in cargoxx.util: ErrorCode (numbers per TECH_SPEC.md §4), Error, Result<T> = std::expected<T, Error>, and format(Error) rendering error[Ennnn]: ... with optional --> path:line:col and hint: lines. format lives in src/util/error.cpp as a module implementation unit.
• Catch2 v3 wired through flake.nix (libc++-built override) and registered in CMake; tests/util_error.cpp covers six format cases via catch_discover_tests.
• cargoxx.manifest public types (Package, Dependency, BuildSettings, Edition, Manifest) and parse(path) returning Result<Manifest>, backed by toml++ vendored as third_party/toml.hpp. Unknown keys in [package] / [build] and unknown top-level keys are rejected; reserved fields (description, repository, [dev-dependencies], [features], [workspace]) are accepted. tests/manifest_parse.cpp covers 17 cases.
• manifest::write(m, path) serializes a Manifest as TOML using toml++. Dependencies are emitted alphabetically (matches Cargo). Round-trip property is exercised by tests/manifest_write.cpp (9 cases). Defaulted operator== on the manifest structs supports comparison.
• cargoxx.layout public types (Target, TargetKind, DiscoveredLayout) and discover(project_root, package_name). Walks src/ recursively for the library (excluding the src/bin/ subtree), enumerates src/main.cpp, src/bin/*.cpp, tests/*.cpp, examples/*.cpp flat, sorts results for deterministic output, and returns LayoutNoTarget when neither a library nor any binary is present. tests/layout_discovery.cpp covers 12 cases.
• cargoxx new <name> and cargoxx new --lib <name> scaffold a project directory with Cargoxx.toml, src/main.cpp or src/lib.cppm, and a minimal .gitignore. Hyphens in the package name are mapped to underscores when generating the module/namespace identifier. Codegen of flake.nix / CMakeLists.txt is intentionally deferred to M3. CLI11 v2.6.2 vendored at third_party/CLI11.hpp; entry point is now cargoxx::cli::run(argc, argv). tests/cmd_new.cpp covers 9 cases.