Consolidate MSVC libraries to unified msvc directory for 60% package size reduction #63

Copilot · 2025-12-07T08:41:37Z

现有发布包针对 VS2017-VS2026 分别提供独立静态库，导致包体积过大（lib/ 目录 86MB）。利用 MSVC ABI 兼容性（VS2015+ 共享 Universal CRT），统一使用同一套 MSVC 编译的静态库支持所有现代 Visual Studio 版本。

Changes

Build system

CMakeLists.txt: Consolidated MSVC version logic—all MSVC_VERSION >= 1910 now use msvc/{x64,x86} libraries
Removed version-specific branches for VS2017/2022/2026

Distribution

update-libs.sh: Sync only msvc libraries, removed vs2017/2022/2026 from mapping arrays
Deleted 12 obsolete library files (3 directories): lib/vs2017, lib/vs2022, lib/vs2026
Renamed lib/vs2019 to lib/msvc for better clarity

Documentation

README.md, doc/Release-25.11.md: Added MSVC consolidation notes
doc/MSVC-Library-Consolidation.md: Technical documentation on ABI compatibility rationale
Updated all references from vs2019 to msvc throughout documentation

Impact

Package size: 86MB → 34MB (60% reduction in lib/)
Compatibility: VS2017-VS2026 全支持，完全向后兼容
User code: Zero changes required—CMake auto-selects correct libraries, headers auto-link via #pragma comment
Clearer naming: msvc directory name better indicates cross-version compatibility

Technical Details

Why unified msvc directory: Using generic msvc naming instead of version-specific vs2019 better expresses cross-version compatibility and avoids confusion about which VS version the libraries target

Debug/Release separation maintained: graphicsd.lib vs graphics.lib still separate due to _ITERATOR_DEBUG_LEVEL and STL layout incompatibility between build types

# Before: 4 separate version checks
if(MSVC_VERSION GREATER_EQUAL 1950)      # vs2026
    set(osLibDir "vs2026/x64")
elseif(MSVC_VERSION GREATER_EQUAL 1930)  # vs2022
    set(osLibDir "vs2022/x64")
# ... 2 more branches

# After: Single consolidated check
if(MSVC_VERSION GREATER_EQUAL 1910)
    # vs2017-vs2026 统一使用 msvc 静态库
    set(osLibDir "msvc/x64")
endif()

Original prompt

这是一个图形库项目。对外发布的时候，主要发布的是静态库。
首先是问题描述以及分析：
目前在 msvc 上发布的时候，针对 vs2017vs2026 全部都单独发布了版本。这导致发布的包特别大，因为不同的 IDE 本身对应不同版本，再加上 MSVC 上 Debug 和 Release 都得单独提供。
我希望优化这个行为，减少包体积。
请仔细帮我分析本项目，是否可以只使用 msvc 的某一个版本来发布，比如对于 vs20172026, 全部都使用 vs2017 编译出来的静态库。或者反过来，全都使用 vs2026 编译出来的静态库。这样是否合理，以及这样是否推荐？你是否有更好的办法或者你推荐的做法是什么？

接下来是操作：
请基于你认为最合理的方案，执行改进。
改进的时候，要注意修改所有受关联的部分，包含 README 等文档、执行更新的脚本等等。

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coderabbitai · 2025-12-07T08:41:43Z

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wysaid · 2025-12-07T09:14:29Z

@copilot 我看到了你的改动，但我认为还应该继续改进。
既然 msvc 已经公用一个静态库目录，那么这个目录没必要保持 vs2019 这样的字样，直接使用 msvc 岂不是更好？
另外再仔细审查一下所有关联的脚本以及文档，都改进一下

Co-authored-by: wysaid <1430725+wysaid@users.noreply.github.com>

Copilot · 2025-12-07T09:18:58Z

@copilot 我看到了你的改动，但我认为还应该继续改进。
既然 msvc 已经公用一个静态库目录，那么这个目录没必要保持 vs2019 这样的字样，直接使用 msv...

已完成改进！已将 lib/vs2019 目录重命名为 lib/msvc，并更新了所有相关的脚本和文档：

改进内容：

✅ 目录重命名：lib/vs2019 → lib/msvc
✅ CMakeLists.txt：更新库路径为 msvc/x64 和 msvc/x86
✅ update-libs.sh：更新同步配置
✅ README.md 和 doc/Release-25.11.md：更新说明文档
✅ doc/MSVC-Library-Consolidation.md：更新技术文档

优势：
msvc 命名更清晰地表达了"适用于所有 MSVC 版本"的含义，避免了 vs2019 可能带来的版本特定性误解。

Pull request overview

This PR consolidates MSVC static libraries from version-specific directories (vs2017, vs2019, vs2022, vs2026) into a unified msvc directory, leveraging ABI compatibility across Visual Studio 2015+ versions that share the Universal CRT. This optimization reduces the distribution package size by approximately 60% (from 86MB to 34MB in the lib/ directory).

Key changes include:

Simplified CMakeLists.txt logic to use a single msvc/{x64,x86} path for all MSVC versions ≥ VS2017
Updated build scripts to sync only the unified msvc libraries
Comprehensive documentation of the technical rationale for ABI compatibility and the consolidation approach

Reviewed changes

Copilot reviewed 6 out of 22 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
CMakeLists.txt	Consolidated MSVC version checks from 4 separate branches into a single `MSVC_VERSION >= 1910` check that uses `msvc/{x64,x86}` libraries
update-libs.sh	Removed vs2017/2022/2026 from copy mapping arrays, now only syncs unified msvc directory
lib/vs2017/, lib/vs2022/, lib/vs2026/*	Deleted 12 obsolete library files (4 per version, x86/x64 Debug/Release)
doc/MSVC-Library-Consolidation.md	New technical documentation explaining ABI compatibility rationale and implementation details
doc/Release-25.11.md	Added release notes about MSVC library consolidation and package size reduction
README.md	Updated changelog to mention MSVC library consolidation strategy

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Copilot · 2025-12-14T11:04:04Z

doc/MSVC-Library-Consolidation.md

+
+## 更新日志
+
+- **2025.11**: 首次实施 MSVC 库整合策略，减少发布包体积约 52MB


The version number should be "25.11" not "2025.11" to match the version format used elsewhere in the document (see line 5 which refers to "EGE 25.11 版本").

Suggested change

- **2025.11**: 首次实施 MSVC 库整合策略，减少发布包体积约 52MB

- **25.11**: 首次实施 MSVC 库整合策略，减少发布包体积约 52MB

wysaid · 2026-01-13T07:00:59Z

@Auggie review

augmentcode · 2026-01-13T07:05:42Z

🤖 Augment PR Summary

Summary: This PR reduces the Windows/MSVC SDK footprint by consolidating multiple Visual Studio version-specific static library folders into a single shared lib/msvc layout.

Changes:

Simplified CMakeLists.txt MSVC selection logic so VS2017+ resolves to lib/msvc/{x64,x86} instead of versioned directories.
Renamed lib/vs2019 to lib/msvc and removed obsolete lib/vs2017, lib/vs2022, lib/vs2026 binaries.
Updated update-libs.sh to sync only the unified MSVC directory.
Documented the ABI-compatibility rationale and updated release notes/README to reflect the new distribution strategy.

Technical Notes: Debug/Release libraries remain separate (graphics.lib vs graphicsd.lib) due to STL/debug iterator layout differences; the approach relies on MSVC ABI compatibility across VS2015+ (UCRT) for VS2017–VS2026 consumers.

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augmentcode

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augmentcode · 2026-01-13T07:05:43Z

CMakeLists.txt

 if(MSVC)
-    # 设置 MSVC 编译选项, 当版本大于 vs2019 时, 使用 c++17 标准.
+    # 设置 MSVC 编译选项, 使用 c++17 标准.
    set(CPP_COMPILE_OPTIONS "/std:c++17")


MSVC_VERSION >= 1910 now always uses /std:c++17, but /std:c++17 is only available starting with VS2017 15.3 (MSVC_VERSION 1911); on VS2017 RTW (1910) this will likely fail to configure/build, so “VS2017 supported” may need a minimum update level called out.

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augmentcode · 2026-01-13T07:05:43Z

doc/MSVC-Library-Consolidation.md

+### VS2015 及更早版本
+
+VS2015 及更早版本仍然使用独立的库文件：
+- VS2015: `lib/vs2015/`


This section says VS2015 uses lib/vs2015/, but this SDK (and the earlier directory tree in this same doc) doesn’t show that folder; could you clarify/remove this to avoid sending users to a non-existent path?

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Copilot AI assigned Copilot and wysaid Dec 7, 2025

Initial plan

e05152b

Copilot started work on behalf of wysaid December 7, 2025 08:41 View session

Copilot AI and others added 2 commits December 7, 2025 08:46

Consolidate MSVC libraries to VS2019 for all VS2017-VS2026 versions

dd179c4

Co-authored-by: wysaid <1430725+wysaid@users.noreply.github.com>

Add comprehensive documentation for MSVC library consolidation

465e1d3

Co-authored-by: wysaid <1430725+wysaid@users.noreply.github.com>

Copilot AI changed the title ~~[WIP] Optimize release package size for static libraries~~ Consolidate MSVC libraries to VS2019 for 60% package size reduction Dec 7, 2025

Copilot finished work on behalf of wysaid December 7, 2025 08:52

Copilot AI requested a review from wysaid December 7, 2025 08:52

Copilot started work on behalf of wysaid December 7, 2025 09:14 View session

Rename vs2019 directory to msvc for better clarity

2a8c1cf

Co-authored-by: wysaid <1430725+wysaid@users.noreply.github.com>

Copilot AI changed the title ~~Consolidate MSVC libraries to VS2019 for 60% package size reduction~~ Consolidate MSVC libraries to unified msvc directory for 60% package size reduction Dec 7, 2025

Copilot finished work on behalf of wysaid December 7, 2025 09:21

wysaid marked this pull request as ready for review December 14, 2025 11:00

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Consolidate MSVC libraries to unified msvc directory for 60% package size reduction #63

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		## 更新日志

		- 2025.11: 首次实施 MSVC 库整合策略，减少发布包体积约 52MB

	- 2025.11: 首次实施 MSVC 库整合策略，减少发布包体积约 52MB
	- 25.11: 首次实施 MSVC 库整合策略，减少发布包体积约 52MB

Consolidate MSVC libraries to unified msvc directory for 60% package size reduction #63

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