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https://github.com/ilammy/msvc-dev-cmd.git
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137 lines
4.4 KiB
Markdown
137 lines
4.4 KiB
Markdown
<a href="https://github.com/ilammy/msvc-dev-cmd"><img alt="GitHub Actions status" src="https://github.com/ilammy/msvc-dev-cmd/workflows/msvc-dev-cmd/badge.svg"></a>
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# msvc-dev-cmd
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[GitHub Action](https://github.com/features/actions) for configuring Developer Command Prompt for Microsoft Visual C++.
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This sets up the environment for compiling C/C++ code from command line.
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Supports Windows. Does nothing on Linux and macOS.
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## Example usage
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Basic usage for default compilation settings is like this:
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```yaml
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jobs:
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test:
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steps:
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- uses: actions/checkout@v4
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- uses: ilammy/msvc-dev-cmd@v1
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- name: Build something requiring CL.EXE
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run: |
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cmake -G "NMake Makefiles" .
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nmake
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# ...
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```
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If you want something non-default,
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like using a specific version of Visual Studio,
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or cross-compling for a different target,
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you will need to configure those settings via inputs:
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```yaml
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jobs:
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test:
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# Run a job for each of the specified target architectures:
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strategy:
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matrix:
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arch:
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- amd64
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- amd64_x86
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- amd64_arm64
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steps:
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- uses: actions/checkout@v4
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- uses: ilammy/msvc-dev-cmd@v1
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with:
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arch: ${{ matrix.arch }}
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- name: Build something requiring CL.EXE
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run: |
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cmake -G "NMake Makefiles" .
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nmake
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# ...
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```
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## Inputs
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- `arch` – target architecture
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- native compilation:
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- `x64` (default) or its synonyms: `amd64`, `win64`, `x86_64`, `x86-64`
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- `x86` or its synonyms: `win32`
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- cross-compilation: `x86_amd64`, `x86_arm`, `x86_arm64`, `amd64_x86`, `amd64_arm`, `amd64_arm64`
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- `sdk` – Windows SDK to use
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- do not specify to use the default SDK
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- or specify full Windows 10 SDK number (e.g, `10.0.10240.0`)
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- or write `8.1` to use Windows 8.1 SDK
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- `toolset` – select VC++ compiler toolset version
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- do not specify to use the default toolset
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- `14.0` for VC++ 2015 Compiler Toolset
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- `14.XX` for the latest 14.XX toolset installed (e.g, `14.11`)
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- `14.XX.YYYYY` for a specific full version number (e.g, `14.11.25503`)
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- `uwp` – set `true` to build for Universal Windows Platform (i.e., for Windows Store)
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- `spectre` – set `true` to use Visual Studio libraries with [Spectre](https://meltdownattack.com) mitigations
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- `vsversion` - The Visual Studio version to use. This can be the version number (e.g. 16.0 for 2019) or the year (e.g. "2019").
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## Caveats
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### Name conflicts with `shell: bash`
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Using `shell: bash` in Actions may shadow some of the paths added by MSVC.
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In particular, `link.exe` (Microsoft C linker) is prone to be shadowed by `/usr/bin/link` (GNU filesystem link tool).
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Unfortunately, this happens because GitHub Actions unconditionally *prepend* GNU paths when `shell: bash` is used,
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on top of any paths set by `msvc-dev-cmd`, every time at the start of each new step.
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Hence, there aren't many non-destructive options here.
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If you experience compilation errors where `link` complains about unreasonable command-line arguments,
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“extra operand *something-something*” – that's probably it.
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Recommended workaround is to remove `/usr/bin/link` if that interferes with your builds.
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If this is not acceptable, please file an issue, then we'll figure out something better.
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### Reconfiguration
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You can invoke `ilammy/msvc-dev-cmd` multiple times during your jobs with different inputs
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to reconfigure the environment for building with different settings
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(e.g., to target multiple architectures).
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```yaml
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jobs:
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release:
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steps:
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# ...
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- name: Configure build for amd64
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uses: ilammy/msvc-dev-cmd@v1
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with:
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arch: amd64
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- run: build # (for amd64)
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- name: Configure build for x86
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uses: ilammy/msvc-dev-cmd@v1
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with:
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arch: amd64_x86
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- run: build # (for x86)
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- name: Configure build for ARM64
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uses: ilammy/msvc-dev-cmd@v1
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with:
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arch: amd64_arm64
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- run: build # (for ARM64)
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# ...
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```
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This mostly works but it's not really recommended
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since Developer Command Prompt was not meant for recursive reconfiguration.
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That said, if it does not work for you, please file an issue.
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Consider using [`strategy.matrix`](https://docs.github.com/en/actions/reference/workflow-syntax-for-github-actions#jobsjob_idstrategymatrix)
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to execute different build configuration in parallel, independent environments.
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## License
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MIT, see [LICENSE](LICENSE).
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