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* [docs] Improve inter-document linking; add 'latest' links * [docs] Apply suggestions from code review Co-authored-by: nicole mazzuca <mazzucan@outlook.com> Co-authored-by: nicole mazzuca <mazzucan@outlook.com> Co-authored-by: Robert Schumacher <roschuma@microsoft.com>
91 lines
3.7 KiB
Markdown
91 lines
3.7 KiB
Markdown
## Environment and Configuration
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**The latest version of this documentation is available on [GitHub](https://github.com/Microsoft/vcpkg/tree/master/docs/users/config-environment.md).**
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### Environment Variables
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#### VCPKG_DOWNLOADS
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This environment variable can be set to an existing directory to use for storing downloads instead of the internal
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`downloads/` directory. It should always be set to an absolute path.
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#### VCPKG_FEATURE_FLAGS
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This environment variable can be set to a comma-separated list of off-by-default features in vcpkg. These features are
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subject to change without notice and should be considered highly unstable.
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Non-exhaustive list of off-by-default features:
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- `binarycaching`
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- `manifest`
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#### EDITOR
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This environment variable can be set to the full path of an executable to be used for `vcpkg edit`. Please see
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`vcpkg help edit` for command-specific help.
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#### VCPKG_ROOT
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This environment variable can be set to a directory to use as the root of the vcpkg instance. Note that mixing vcpkg
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repo versions and executable versions can cause issues.
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#### VCPKG_VISUAL_STUDIO_PATH
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This environment variable can be set to the full path to a Visual Studio instance on the machine. This Visual Studio instance
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will be used if the triplet does not override it via the [`VCPKG_VISUAL_STUDIO_PATH` triplet setting](triplets.md#VCPKG_VISUAL_STUDIO_PATH).
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Example: `D:\2017`
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#### VCPKG_DEFAULT_TRIPLET
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This environment variable can be set to a triplet name which will be used for unqualified triplet references in command lines.
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#### VCPKG_DEFAULT_HOST_TRIPLET
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This environment variable can be set to a triplet name which will be used for unqualified host port references in command lines and all host port references in dependency lists. See [the Tools documentation](tools.md) for more information.
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#### VCPKG_OVERLAY_PORTS
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This environment variable allows users to override ports with alternate versions according to the
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[ports overlay](../specifications/ports-overlay.md) specification. List paths to overlays using
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the platform dependent PATH seperator (Windows `;` | others `:`)
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Example (Windows): `C:\custom-ports\boost;C:\custom-ports\sqlite3`
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#### VCPKG_OVERLAY_TRIPLETS
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This environment variable allows users to add directories to search for triplets.
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[Example: overlay triplets](../examples/overlay-triplets-linux-dynamic.md).
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List paths to overlays using the platform dependent PATH seperator (Windows `;`, others `:`)
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#### VCPKG_FORCE_SYSTEM_BINARIES
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This environment variable, if set, suppresses the downloading of CMake and Ninja and forces the use of the system binaries.
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#### VCPKG_KEEP_ENV_VARS
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This environment variable can be set to a list of environment variables, separated by `;`, which will be propagated to
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the build environment.
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Example: `FOO_SDK_DIR;BAR_SDK_DIR`
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#### VCPKG_MAX_CONCURRENCY
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This environment variables limits the amount of concurrency requested by underlying buildsystems. If unspecified, this defaults to logical cores + 1.
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#### VCPKG_DEFAULT_BINARY_CACHE
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This environment variable redirects the default location to store binary packages. See [Binary Caching](binarycaching.md#Configuration) for more details.
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#### VCPKG_BINARY_SOURCES
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This environment variable adds or removes binary sources. See [Binary Caching](binarycaching.md#Configuration) for more details.
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#### VCPKG_NUGET_REPOSITORY
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This environment variable changes the metadata of produced NuGet packages. See [Binary Caching](binarycaching.md#Configuration) for more details.
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#### VCPKG_USE_NUGET_CACHE
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This environment variable allows using NuGet's cache for every nuget-based binary source. See [Binary Caching](binarycaching.md#NuGets-cache) for more details.
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