feat(build): build.mcpp 补全 — 环境契约 + cross 下运行 + 依赖包执行 (0.0.95)#222
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设计: .agents/docs/2026-07-17-asm-sources-and-general-build-capabilities-design.md (PR-C) G3 环境契约 + cross: - 注入 MCPP_TARGET/HOST/PROFILE/OUT_DIR/MANIFEST_DIR/MCPP_FEATURE_<NAME>/ MCPP_FEATURES(仅子进程,capture_exec env);契约值无条件折入重跑键 (cache 新增 ctx 行,旧缓存缺行自动失效一次) - cross --target 不再跳过:宿主工具链按同一 spec 词汇独立解析(不注入 target 轴),懒解析且仅当存在 build.mcpp;typed `import mcpp;` 模块补 读取端 target()/host()/profile()/out_dir()/manifest_dir()/has_feature() - feature 闭包收敛为单一 feature_closure 实现(原三处重复);profile 名提升 为 effectiveProfile 供契约使用;--features 解析共享 parse_feature_request G2 依赖包 build.mcpp(Cargo build.rs 模型): - 时机:feature 激活后、modgraph 扫描前;作用域照 Cargo:cfg/flags 只进该包 自身 TU(镜像进 privateBuild,与 MCPP_FEATURE_ 宏同款),link 指令补传终链 (BFS 传播已过,追加新尾部) - 产物全部项目本地化:target/.build-mcpp/deps/<pkg>@<ver>/,registry 包根 绝不写入;相对 generated= 以 OUT_DIR 为基;scanner 支持绝对路径字面源条目 - 顺修潜在盲区:generated= 只推 bc.sources,scanner 走 modules.sources 镜像 ——现在双推(此前靠默认 glob 兜住) 版本 bump 0.0.95(mcpp.toml + fingerprint.cppm 同步);docs/07 中英补契约与 依赖节;e2e 110(契约值/缓存/feature+profile 重跑)/111(dep 作用域/终链/ registry 零写入)/112(cross + wine 全环);单测 35/35,e2e 112 过(3 失败 均既有环境性 22/54/62)
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概要
G1–G9 方案的 PR-C(终 PR,叠在 #221 之上;A→B→C 依次合入后自动 retarget)。携带版本 bump 0.0.95——本 PR 合入 = 触发 0.0.95 发布链(release.yml → publish-ecosystem → fresh-install → bootstrap pin)。
内容(G3 + G2)
G3 — 环境契约 + cross 下运行
MCPP_TARGET/MCPP_HOST/MCPP_PROFILE/MCPP_OUT_DIR/MCPP_MANIFEST_DIR/MCPP_FEATURE_<NAME>/MCPP_FEATURES(仅子进程);typedimport mcpp;模块补对应读取端target()/host()/profile()/out_dir()/manifest_dir()/has_feature()ctx行)——换 target/profile/开关 feature 必重跑,不依赖作者写rerun-if-env-changed;旧格式缓存自动失效一次--target不再跳过:宿主工具链按同一 spec 词汇独立解析(不注入 target 轴),懒解析、仅当 build.mcpp 存在;程序在宿主编译运行,看到MCPP_TARGET= 交叉三元组feature_closure;--features解析共享化G2 — 依赖包 build.mcpp(Cargo build.rs 模型)
cfg/flags 只进该包自身 TU(镜像进 privateBuild,与MCPP_FEATURE_宏同款),link-lib/link-search达终链<project>/target/.build-mcpp/deps/<pkg>@<ver>/;registry 共享包根绝不写入(e2e 以 find 快照锁零写入);相对generated=以MCPP_OUT_DIR为基,scanner 支持绝对路径字面源条目generated=此前只推bc.sources而 scanner 走modules.sources镜像(靠默认 glob 兜住)——现在双推测试
--features/--release触发重跑且程序观察到新值#error双向锁)、OUT_DIR 生成源入编译、dep 根目录 find 快照零写入MCPP_TARGET=x86_64-windows-gnu烙进生成源、PE 产物 wine 真跑验证--version== mcpp.toml == 0.0.95合入后
走一次发布链:tag → release.yml 四平台 → publish-ecosystem(镜像 xlings-res 双端 + xim-pkgindex bump PR)→ fresh-install 验证 → workspace bootstrap pin bump;随后 mcpp-index 侧解锁项见设计文档 §4.4。