feat(mcpp.plugins): 0.5.1, overlapping roots are refused (#373)

0.5.0's design record required the refusal and 0.5.0 shipped without it. A file
reachable from two roots has two namespace paths, and which one it got depended
on the order of the list; it was also read twice and merged with itself, so the
entry looked like two implementations agreeing rather than one file counted
twice.

0.5.1 also stops a single-file root from registering a re-run glob over the
directory that file happens to sit in.

The floor stays at mcpp 2026.9.8.1.

The CN asset is the same bytes as the GitHub source archive of tag v0.5.1,
sha256 1be429b00faaf48afa6c607bdcb98f05b242fef297bd2c588f67fae98f0d83e1,
verified by downloading it back after the upload.

Author: Sunrisepeak

pkgs/m/mcpp.plugins.lua

@@ -2,7 +2,7 @@
 -- each member selected by a feature.
 --
 --   [dependencies.mcpp]
---   plugins = { version = "0.5.0", features = ["rules-spirv"], host-module = true }
+--   plugins = { version = "0.5.1", features = ["rules-spirv"], host-module = true }
 --
 --   // build.mcpp
 --   import mcpp;
@@ -283,6 +283,12 @@
 -- The floor does not move. 0.5.0 changes what the package generates, not what
 -- it asks the engine for, so it stays at mcpp 2026.9.8.1.
 --
+-- 0.5.1 refuses overlapping roots, which 0.5.0's design record required and
+-- 0.5.0 shipped without: a file reachable from two roots had two namespace
+-- paths, and which one it got depended on the order of the list. It also stops
+-- a single-file root from registering a re-run glob over the directory that
+-- file happens to sit in.
+--
 -- The descriptor points at the source archive of the tag, the shape `grpcgen`
 -- established; the CN asset is the same bytes, so one sha256 names both.
 package = {
@@ -296,6 +302,13 @@ package = {
 
     xpm = {
         linux = {
+            ["0.5.1"] = {
+                url = {
+                    GLOBAL = "https://github.com/mcpp-community/mcpp-plugins/archive/refs/tags/v0.5.1.tar.gz",
+                    CN     = "https://gitcode.com/mcpp-res/mcpp-plugins/releases/download/0.5.1/mcpp-plugins-0.5.1.tar.gz",
+                },
+                sha256 = "1be429b00faaf48afa6c607bdcb98f05b242fef297bd2c588f67fae98f0d83e1",
+            },
             ["0.5.0"] = {
                 url = {
                     GLOBAL = "https://github.com/mcpp-community/mcpp-plugins/archive/refs/tags/v0.5.0.tar.gz",
@@ -380,9 +393,16 @@ package = {
                 },
                 sha256 = "adf1f9d6691a5d05a8a4a94e83c733ea39caee1510ce2c9af4cb23bebabea9f5",
             },
-            ["latest"] = { ref = "0.5.0" },
+            ["latest"] = { ref = "0.5.1" },
         },
         macosx = {
+            ["0.5.1"] = {
+                url = {
+                    GLOBAL = "https://github.com/mcpp-community/mcpp-plugins/archive/refs/tags/v0.5.1.tar.gz",
+                    CN     = "https://gitcode.com/mcpp-res/mcpp-plugins/releases/download/0.5.1/mcpp-plugins-0.5.1.tar.gz",
+                },
+                sha256 = "1be429b00faaf48afa6c607bdcb98f05b242fef297bd2c588f67fae98f0d83e1",
+            },
             ["0.5.0"] = {
                 url = {
                     GLOBAL = "https://github.com/mcpp-community/mcpp-plugins/archive/refs/tags/v0.5.0.tar.gz",
@@ -467,9 +487,16 @@ package = {
                 },
                 sha256 = "adf1f9d6691a5d05a8a4a94e83c733ea39caee1510ce2c9af4cb23bebabea9f5",
             },
-            ["latest"] = { ref = "0.5.0" },
+            ["latest"] = { ref = "0.5.1" },
         },
         windows = {
+            ["0.5.1"] = {
+                url = {
+                    GLOBAL = "https://github.com/mcpp-community/mcpp-plugins/archive/refs/tags/v0.5.1.tar.gz",
+                    CN     = "https://gitcode.com/mcpp-res/mcpp-plugins/releases/download/0.5.1/mcpp-plugins-0.5.1.tar.gz",
+                },
+                sha256 = "1be429b00faaf48afa6c607bdcb98f05b242fef297bd2c588f67fae98f0d83e1",
+            },
             ["0.5.0"] = {
                 url = {
                     GLOBAL = "https://github.com/mcpp-community/mcpp-plugins/archive/refs/tags/v0.5.0.tar.gz",
@@ -554,7 +581,7 @@ package = {
                 },
                 sha256 = "adf1f9d6691a5d05a8a4a94e83c733ea39caee1510ce2c9af4cb23bebabea9f5",
             },
-            ["latest"] = { ref = "0.5.0" },
+            ["latest"] = { ref = "0.5.1" },
         },
     },