feat(xpkg): add libxpkg 0.0.44

.agents/docs/2026-07-12-add-libxpkg-0.0.44-plan.md

@@ -0,0 +1,61 @@
+# Add libxpkg 0.0.44 to mcpp-index
+
+**Date**: 2026-07-12
+
+**Package**: `mcpplibs.xpkg`
+
+**Upstream release**: `openxlings/libxpkg` `v0.0.44`
+
+**Upstream commit**: `343a1fd9a697ba868af209b43862899b05a580c8`
+
+## Package shape
+
+libxpkg is an external Form-A C++23 module repository. The release contains its
+own `mcpp.toml`; the index descriptor therefore remains a resource pointer and
+does not duplicate upstream build metadata. Version 0.0.44 exports the existing
+`mcpplibs.xpkg` module surface and adds the resource-normalization work required
+by xlings.
+
+No feature is added: this is a version registration for an upstream module
+package, not a source-gated optional component.
+
+## Resources and mirrors
+
+All three platforms use the same GitHub tag archive and SHA256:
+
+- GLOBAL: `https://github.com/openxlings/libxpkg/archive/refs/tags/v0.0.44.tar.gz`
+- CN: `https://gitcode.com/mcpp-res/xpkg/releases/download/0.0.44/xpkg-0.0.44.tar.gz`
+- SHA256: `152a27425ba418312182bddb316c8c5bc636bbd8a37faf30e75390dc844e2e95`
+
+The GLOBAL archive was downloaded independently twice. The CN release asset was
+uploaded from those exact bytes and then downloaded publicly: HTTP 200, equal
+size (127252 bytes), equal SHA256, and byte-identical by `cmp`.
+
+Version 0.0.43 is intentionally not registered. The ecosystem integration uses
+the final 0.0.44 release, which includes the target-platform context required by
+the xpkg normalization boundary.
+
+## Example decision
+
+No new workspace example is committed for this version-only update. `mcpplibs`
+is mcpp's default remote index name: the resolver can see an unpublished version
+through `[indices].mcpplibs.path`, but the fetch subprocess asks xlings for the
+same named registry and resolves the already-published remote tree. Giving the
+path index a different alias cannot find a descriptor whose declared namespace
+is `mcpplibs`. This is the same default-index local-override class that keeps the
+public `imgui` module outside the workspace in `validate.yml`.
+
+A local experiment reached this boundary after resolving the toolchain and then
+failed at `fetch 'mcpplibs.xpkg@0.0.44'`; therefore it is not presented as an
+end-to-end pass. Adding a git dependency would only test upstream and would not
+exercise this descriptor, so it would be misleading. The existing full
+workspace remains the regression gate; the new descriptor is covered directly
+by strict parsing, mirror validation, and resource byte verification.
+
+## Verification plan
+
+1. Parse `pkgs/x/xpkg.lua` with Lua and CI-pinned mcpp 0.0.87.
+2. Run the repository mirror lint and confirm the new CN URL is reachable.
+3. Run the repository's existing `mcpp test --workspace` CI matrix to prove the
+   version addition does not regress current consumers.
+4. Open a PR and require all validation jobs to pass before merge.

README.md

@@ -32,7 +32,7 @@ mcpp self config --mirror CN   # 切换至国内镜像,默认使用 GLOBAL 上
 
 | 形态 | 示例 |
 |------|------|
-| 原生模块库(Form A) | [`mcpplibs.tinyhttps`](pkgs/t/tinyhttps.lua) · [`tensorvia-cpu`](pkgs/t/tensorvia-cpu.lua) |
+| 原生模块库(Form A) | [`mcpplibs.xpkg`](pkgs/x/xpkg.lua) · [`mcpplibs.tinyhttps`](pkgs/t/tinyhttps.lua) · [`tensorvia-cpu`](pkgs/t/tensorvia-cpu.lua) |
 | C 源码 compat(含 `features`) | [`compat.cjson`](pkgs/c/compat.cjson.lua) · [`compat.zlib`](pkgs/c/compat.zlib.lua) |
 | header-only(含 `features`) | [`compat.eigen`](pkgs/c/compat.eigen.lua) |
 | 外部构建系统(`install()` 从源码构建) | [`compat.openblas`](pkgs/c/compat.openblas.lua)(Make) · [`compat.opencv`](pkgs/c/compat.opencv.lua)(CMake) |

pkgs/x/xpkg.lua

@@ -12,6 +12,13 @@ package = {
 
     xpm = {
         linux = {
+            ["0.0.44"] = {
+                url    = {
+                    GLOBAL = "https://github.com/openxlings/libxpkg/archive/refs/tags/v0.0.44.tar.gz",
+                    CN     = "https://gitcode.com/mcpp-res/xpkg/releases/download/0.0.44/xpkg-0.0.44.tar.gz",
+                },
+                sha256 = "152a27425ba418312182bddb316c8c5bc636bbd8a37faf30e75390dc844e2e95",
+            },
             ["0.0.42"] = {
                 url    = {
                     GLOBAL = "https://github.com/openxlings/libxpkg/archive/refs/tags/v0.0.42.tar.gz",
@@ -42,6 +49,13 @@ package = {
             },
         },
         macosx = {
+            ["0.0.44"] = {
+                url    = {
+                    GLOBAL = "https://github.com/openxlings/libxpkg/archive/refs/tags/v0.0.44.tar.gz",
+                    CN     = "https://gitcode.com/mcpp-res/xpkg/releases/download/0.0.44/xpkg-0.0.44.tar.gz",
+                },
+                sha256 = "152a27425ba418312182bddb316c8c5bc636bbd8a37faf30e75390dc844e2e95",
+            },
             ["0.0.42"] = {
                 url    = {
                     GLOBAL = "https://github.com/openxlings/libxpkg/archive/refs/tags/v0.0.42.tar.gz",
@@ -72,6 +86,13 @@ package = {
             },
         },
         windows = {
+            ["0.0.44"] = {
+                url    = {
+                    GLOBAL = "https://github.com/openxlings/libxpkg/archive/refs/tags/v0.0.44.tar.gz",
+                    CN     = "https://gitcode.com/mcpp-res/xpkg/releases/download/0.0.44/xpkg-0.0.44.tar.gz",
+                },
+                sha256 = "152a27425ba418312182bddb316c8c5bc636bbd8a37faf30e75390dc844e2e95",
+            },
             ["0.0.42"] = {
                 url    = {
                     GLOBAL = "https://github.com/openxlings/libxpkg/archive/refs/tags/v0.0.42.tar.gz",