ci: validate every member with mcpp 2026.9.29.1; latest_mcpp -> 2026.9.29.1

.github/workflows/validate.yml

@@ -377,7 +377,16 @@ env:
   # as its floor, and tests/examples/mcpp-plugins builds against it. Engine
   # warnings the members may newly print: W1 to W3 of SPEC-008 (the library
   # interface), warnings only.
-  MCPP_VERSION: "2026.9.28.3"
+  #
+  # 2026.9.29.1 (mcpp-community/mcpp#738) builds a workspace as one graph per
+  # configuration: `mcpp test -p <member>` plans that member and what it
+  # reaches in the workspace's build directory, `target/<triple>/<key>/` at
+  # this repository's root, with the member's products in `bin/<name>/`. The
+  # members' own `tests/examples/*/target/` directories are no longer written.
+  # The directory name no longer hashes a package's own flags, so a member
+  # whose flags differ from another's shares the directory and ninja rebuilds
+  # the commands that changed.
+  MCPP_VERSION: "2026.9.29.1"
 
 jobs:
   lint:

.mcpp/.xlings.json

@@ -0,0 +1,7 @@
+{
+  "index_repos": [
+    { "name": "compat", "url": "/tmp/claude-1000/idx/" }
+  ],
+  "lang": "en",
+  "mirror": "auto"
+}

.mcpp/.xlings/.xlings.json

@@ -0,0 +1,6 @@
+{
+  "configured": {
+    "compat:argparse@3.2": 0
+  },
+  "workspace": {}
+}

.mcpp/.xlings/data/compat

@@ -0,0 +1 @@
+/tmp/claude-1000/idx/

.mcpp/.xlings/data/xpkgs/compat-x-argparse/3.2/.mcpp_ok

@@ -0,0 +1 @@
+1

.mcpp/.xlings/data/xpkgs/compat-x-argparse/3.2/.xpkg-install.json

@@ -0,0 +1,7 @@
+{
+  "os": "linux",
+  "version": "3.2",
+  "xlings_version": "2026.9.29.1",
+  "registered": 0,
+  "revision": 0
+}

.mcpp/.xlings/data/xpkgs/compat-x-argparse/3.2/.xpkg.lua

@@ -0,0 +1,72 @@
+-- compat.argparse — p-ranav/argparse, a single-header command line parser.
+--
+-- Shape B: one header at `include/argparse/argparse.hpp`, so `include_dirs` is
+-- `*/include` and consumers write `#include <argparse/argparse.hpp>`.
+--
+-- The index's third answer to argument parsing, and they are not
+-- interchangeable: `compat.CLI11` is the large one (subcommands, config files,
+-- validators), `mcpplibs.cmdline` is the mcpp-native module, and this one is
+-- the small header that models an argument as a typed `add_argument(...)`
+-- chain and throws on a bad command line. A project already using it does not
+-- want to be told to rewrite its `main`.
+--
+-- Needs C++17; `language = "c++23"` here is the index's usual setting for a
+-- compat entry and does not force anything on a consumer's own dialect.
+--
+-- CN mirror: `gitcode.com/mcpp-res/argparse`, the upstream tarball re-hosted
+-- BYTE-IDENTICALLY (verified: the mirror's sha256 equals the one declared
+-- here, which is what lets one `sha256` serve both arms). GLOBAL stays the
+-- default; CN is the fallback `mcpp self config --mirror CN` selects.
+package = {
+    spec        = "1",
+    namespace   = "compat",
+    name        = "argparse",
+    description = "argparse — header-only argument parser for modern C++",
+    licenses    = {"MIT"},
+    repo        = "https://github.com/p-ranav/argparse",
+    type        = "package",
+
+    xpm = {
+        linux = {
+            ["3.2"] = {
+                url    = {
+                    GLOBAL = "https://github.com/p-ranav/argparse/archive/refs/tags/v3.2.tar.gz",
+                    CN     = "https://gitcode.com/mcpp-res/argparse/releases/download/3.2/argparse-3.2.tar.gz",
+                },
+                sha256 = "9dcb3d8ce0a41b2a48ac8baa54b51a9f1b6a2c52dd374e28cc713bab0568ec98",
+            },
+        },
+        macosx = {
+            ["3.2"] = {
+                url    = {
+                    GLOBAL = "https://github.com/p-ranav/argparse/archive/refs/tags/v3.2.tar.gz",
+                    CN     = "https://gitcode.com/mcpp-res/argparse/releases/download/3.2/argparse-3.2.tar.gz",
+                },
+                sha256 = "9dcb3d8ce0a41b2a48ac8baa54b51a9f1b6a2c52dd374e28cc713bab0568ec98",
+            },
+        },
+        windows = {
+            ["3.2"] = {
+                url    = {
+                    GLOBAL = "https://github.com/p-ranav/argparse/archive/refs/tags/v3.2.tar.gz",
+                    CN     = "https://gitcode.com/mcpp-res/argparse/releases/download/3.2/argparse-3.2.tar.gz",
+                },
+                sha256 = "9dcb3d8ce0a41b2a48ac8baa54b51a9f1b6a2c52dd374e28cc713bab0568ec98",
+            },
+        },
+    },
+
+    mcpp = {
+        language     = "c++23",
+        import_std   = false,
+        c_standard   = "c11",
+        include_dirs = { "*/include" },
+        generated_files = {
+            ["mcpp_generated/argparse_anchor.c"] =
+                "int mcpp_compat_argparse_anchor(void) { return 0; }\n",
+        },
+        sources      = { "mcpp_generated/argparse_anchor.c" },
+        targets      = { ["argparse"] = { kind = "lib" } },
+        deps         = { },
+    },
+}

.mcpp/.xlings/data/xpkgs/compat-x-argparse/3.2/argparse-3.2/.bazelrc

@@ -0,0 +1,8 @@
+build --enable_platform_specific_config
+
+build:linux --cxxopt=-std=c++17
+
+build:windows --copt=/utf-8
+build:windows --copt=/Zc:preprocessor
+build:windows --cxxopt=/std:c++17
+build:windows --cxxopt=/Zc:__cplusplus

.mcpp/.xlings/data/xpkgs/compat-x-argparse/3.2/argparse-3.2/.clang-format

@@ -0,0 +1,117 @@
+---
+Language:        Cpp
+# BasedOnStyle:  LLVM
+AccessModifierOffset: -2
+AlignAfterOpenBracket: Align
+AlignConsecutiveAssignments: false
+AlignConsecutiveDeclarations: false
+AlignEscapedNewlines: Right
+AlignOperands:   true
+AlignTrailingComments: true
+AllowAllParametersOfDeclarationOnNextLine: true
+AllowShortBlocksOnASingleLine: false
+AllowShortCaseLabelsOnASingleLine: false
+AllowShortFunctionsOnASingleLine: All
+AllowShortIfStatementsOnASingleLine: false
+AllowShortLoopsOnASingleLine: false
+AlwaysBreakAfterDefinitionReturnType: None
+AlwaysBreakAfterReturnType: None
+AlwaysBreakBeforeMultilineStrings: false
+AlwaysBreakTemplateDeclarations: false
+BinPackArguments: true
+BinPackParameters: true
+BraceWrapping:
+  AfterClass:      false
+  AfterControlStatement: false
+  AfterEnum:       false
+  AfterFunction:   false
+  AfterNamespace:  false
+  AfterObjCDeclaration: false
+  AfterStruct:     false
+  AfterUnion:      false
+  AfterExternBlock: false
+  BeforeCatch:     false
+  BeforeElse:      false
+  IndentBraces:    false
+  SplitEmptyFunction: true
+  SplitEmptyRecord: true
+  SplitEmptyNamespace: true
+BreakBeforeBinaryOperators: None
+BreakBeforeBraces: Attach
+BreakBeforeInheritanceComma: false
+BreakBeforeTernaryOperators: true
+BreakConstructorInitializersBeforeComma: false
+BreakConstructorInitializers: BeforeColon
+BreakAfterJavaFieldAnnotations: false
+BreakStringLiterals: true
+ColumnLimit:     80
+CommentPragmas:  '^ IWYU pragma:'
+CompactNamespaces: false
+ConstructorInitializerAllOnOneLineOrOnePerLine: false
+ConstructorInitializerIndentWidth: 4
+ContinuationIndentWidth: 4
+Cpp11BracedListStyle: true
+DerivePointerAlignment: false
+DisableFormat:   false
+ExperimentalAutoDetectBinPacking: false
+FixNamespaceComments: true
+ForEachMacros:
+  - foreach
+  - Q_FOREACH
+  - BOOST_FOREACH
+IncludeBlocks:   Preserve
+IncludeCategories:
+  - Regex:           '^"(llvm|llvm-c|clang|clang-c)/'
+    Priority:        2
+  - Regex:           '^(<|"(gtest|gmock|isl|json)/)'
+    Priority:        3
+  - Regex:           '.*'
+    Priority:        1
+IncludeIsMainRegex: '(Test)?$'
+IndentCaseLabels: false
+IndentPPDirectives: None
+IndentWidth:     2
+IndentWrappedFunctionNames: false
+JavaScriptQuotes: Leave
+JavaScriptWrapImports: true
+KeepEmptyLinesAtTheStartOfBlocks: true
+MacroBlockBegin: ''
+MacroBlockEnd:   ''
+MaxEmptyLinesToKeep: 1
+NamespaceIndentation: None
+ObjCBlockIndentWidth: 2
+ObjCSpaceAfterProperty: false
+ObjCSpaceBeforeProtocolList: true
+PenaltyBreakAssignment: 2
+PenaltyBreakBeforeFirstCallParameter: 19
+PenaltyBreakComment: 300
+PenaltyBreakFirstLessLess: 120
+PenaltyBreakString: 1000
+PenaltyExcessCharacter: 1000000
+PenaltyReturnTypeOnItsOwnLine: 60
+PointerAlignment: Right
+RawStringFormats:
+  - Language: TextProto
+    Delimiters:
+      - 'pb'
+      - 'proto'
+    BasedOnStyle: google
+ReflowComments:  true
+SortIncludes:    true
+SortUsingDeclarations: true
+SpaceAfterCStyleCast: false
+SpaceAfterTemplateKeyword: true
+SpaceBeforeAssignmentOperators: true
+SpaceBeforeParens: ControlStatements
+SpaceInEmptyParentheses: false
+SpacesBeforeTrailingComments: 1
+SpacesInAngles:  false
+SpacesInContainerLiterals: true
+SpacesInCStyleCastParentheses: false
+SpacesInParentheses: false
+SpacesInSquareBrackets: false
+Standard:        c++17
+TabWidth:        8
+UseTab:          Never
+...
+

.mcpp/.xlings/data/xpkgs/compat-x-argparse/3.2/argparse-3.2/.clang-tidy

@@ -0,0 +1,21 @@
+Checks:
+  -*,
+  clang-analyzer-*,
+  cppcoreguidelines-avoid-c-arrays,
+  cppcoreguidelines-special-member-functions,
+  readability-*,
+
+CheckOptions:
+  - { key: readability-identifier-naming.ClassCase, value: CamelCase }
+  - { key: readability-identifier-naming.ConstexprVariableCase, value: lower_case }
+  - { key: readability-identifier-naming.ConstexprVariableIgnoredRegexp, value: "^Is.+" }
+  - { key: readability-identifier-naming.FunctionCase, value: lower_case }
+  - { key: readability-identifier-naming.NamespaceCase, value: lower_case }
+  - { key: readability-identifier-naming.ParameterCase, value: lower_case }
+  - { key: readability-identifier-naming.PrivateMemberCase, value: lower_case }
+  - { key: readability-identifier-naming.PrivateMemberPrefix, value: m_ }
+  - { key: readability-identifier-naming.StructCase, value: CamelCase }
+  - { key: readability-identifier-naming.StructIgnoredRegexp, value: "parse_number" }
+  - { key: readability-identifier-naming.VariableCase, value: lower_case }
+
+HeaderFilterRegex: 'argparse/.+\.hpp'

.mcpp/.xlings/data/xpkgs/compat-x-argparse/3.2/argparse-3.2/.github/workflows/ci.yml

@@ -0,0 +1,87 @@
+
+name: CI
+
+on: pull_request
+
+jobs:
+
+  test:
+
+    name: ${{ matrix.toolchain }}
+    runs-on: ${{ matrix.os }}
+
+    strategy:
+
+      matrix:
+
+        toolchain:
+          - macos-latest-clang
+          - macos-12-clang
+          - ubuntu-latest-clang
+          - ubuntu-latest-gcc
+          - windows-2019-msvc
+          - windows-latest-msvc
+          - windows-latest-clang
+
+        include:
+          - toolchain: macos-latest-clang
+            os: macos-latest
+            c_compiler: clang
+            cxx_compiler: clang++
+
+          - toolchain: macos-12-clang
+            os: macos-latest
+            c_compiler: clang
+            cxx_compiler: clang++
+
+          - toolchain: ubuntu-latest-clang
+            os: ubuntu-latest
+            c_compiler: clang
+            cxx_compiler: clang++
+
+          - toolchain: ubuntu-latest-gcc
+            os: ubuntu-latest
+            c_compiler: cc
+            cxx_compiler: g++
+
+          - toolchain: windows-2019-msvc
+            os: windows-2019
+            c_compiler: msvc
+            cxx_compiler: msvc
+
+          - toolchain: windows-latest-msvc
+            os: windows-latest
+            c_compiler: msvc
+            cxx_compiler: msvc
+
+          - toolchain: windows-latest-clang
+            os: windows-latest
+            c_compiler: clang-cl
+            cxx_compiler: clang-cl
+            cmake_opts: -T ClangCL
+
+    steps:
+
+    - name: Checkout Code
+      uses: actions/checkout@v2
+
+    - name: Configure
+      working-directory: test
+      run: cmake -S . -B build ${{ matrix.cmake_opts }}
+      env:
+        CC: ${{ matrix.c_compiler }}
+        CXX: ${{ matrix.cxx_compiler }}
+
+    - name: Build for ${{ matrix.os }} with ${{ matrix.compiler }}
+      working-directory: test
+      run: cmake --build build
+
+    - name: Test
+      if: ${{ ! startsWith(matrix.os, 'windows') }}
+      working-directory: test/build
+      run: ./tests
+
+    - name: Test (Windows)
+      if: ${{ startsWith(matrix.os, 'windows') }}
+      working-directory: test/build
+      run: ./Debug/tests.exe

.mcpp/.xlings/data/xpkgs/compat-x-argparse/3.2/argparse-3.2/.github/workflows/tidy-analysis-stage-01.yml

@@ -0,0 +1,42 @@
+# Insecure workflow with limited permissions that should provide analysis
+# results through an artifact.
+name: Tidy analysis
+
+on: pull_request
+
+jobs:
+
+  clang-tidy:
+
+    runs-on: ubuntu-20.04
+
+    steps:
+
+    - uses: actions/checkout@v3
+      with:
+        fetch-depth: 2
+
+    - name: Install clang-tidy
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y clang-tidy-12
+
+    - name: Prepare compile_commands.json
+      run: cmake -S . -B build -DCMAKE_EXPORT_COMPILE_COMMANDS=ON
+
+    - name: Create results directory
+      run: mkdir clang-tidy-result
+
+    - name: Analyze
+      run: git diff -U0 HEAD^ | clang-tidy-diff-12.py -p1 -regex ".+hpp" -extra-arg=-Iinclude -extra-arg=-std=c++17 -export-fixes clang-tidy-result/fixes.yml
+
+    - name: Save PR metadata
+      run: |
+        echo ${{ github.event.number }} > clang-tidy-result/pr-id.txt
+        echo ${{ github.event.pull_request.head.repo.full_name }} > clang-tidy-result/pr-head-repo.txt
+        echo ${{ github.event.pull_request.head.ref }} > clang-tidy-result/pr-head-ref.txt
+
+    - uses: actions/upload-artifact@v4
+      with:
+        name: clang-tidy-result
+        path: clang-tidy-result/