101 lines
4.4 KiB
Markdown
101 lines
4.4 KiB
Markdown
|
## Environment and Configuration
|
||
|
|
|
||
|
|
**The latest version of this documentation is available on [GitHub](https://github.com/Microsoft/vcpkg/tree/master/docs/users/config-environment.md).**
|
||
|
|
|
||
|
|
### Environment Variables
|
||
|
|
|
||
|
|
#### VCPKG_DOWNLOADS
|
||
|
|
|
||
|
|
This environment variable can be set to an existing directory to use for storing downloads instead of the internal
|
||
|
|
`downloads/` directory. It should always be set to an absolute path.
|
||
|
|
|
||
|
|
#### VCPKG_FEATURE_FLAGS
|
||
|
|
|
||
|
|
This environment variable can be set to a comma-separated list of off-by-default features in vcpkg. These features are
|
||
|
|
subject to change without notice and should be considered highly unstable.
|
||
|
|
|
||
|
|
There are no off-by-default feature flags at this time.
|
||
|
|
|
||
|
|
#### EDITOR
|
||
|
|
|
||
|
|
This environment variable can be set to the full path of an executable to be used for `vcpkg edit`. Please see
|
||
|
|
`vcpkg help edit` for command-specific help.
|
||
|
|
|
||
|
|
#### VCPKG_ROOT
|
||
|
|
|
||
|
|
This environment variable can be set to a directory to use as the root of the vcpkg instance. Note that mixing vcpkg
|
||
|
|
repo versions and executable versions can cause issues.
|
||
|
|
|
||
|
|
#### VCPKG_VISUAL_STUDIO_PATH
|
||
|
|
|
||
|
|
This environment variable can be set to the full path to a Visual Studio instance on the machine. This Visual Studio instance
|
||
|
|
will be used if the triplet does not override it via the [`VCPKG_VISUAL_STUDIO_PATH`](triplets.md#VCPKG_VISUAL_STUDIO_PATH) triplet setting.
|
||
|
|
|
||
|
|
Example: `D:\2017`
|
||
|
|
|
||
|
|
#### VCPKG_DEFAULT_TRIPLET
|
||
|
|
|
||
|
|
This environment variable can be set to a triplet name which will be used for unqualified triplet references in command lines.
|
||
|
|
|
||
|
|
#### VCPKG_DEFAULT_HOST_TRIPLET
|
||
|
|
|
||
|
|
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 host-dependencies documentation](host-dependencies.md) for more information.
|
||
|
|
|
||
|
|
#### VCPKG_OVERLAY_PORTS
|
||
|
|
|
||
|
|
This environment variable allows users to override ports with alternate versions according to the
|
||
|
|
[ports overlay](../specifications/ports-overlay.md) specification. List paths to overlays using
|
||
|
|
the platform dependent PATH separator (Windows `;` | others `:`)
|
||
|
|
|
||
|
|
Example (Windows): `C:\custom-ports\boost;C:\custom-ports\sqlite3`
|
||
|
|
|
||
|
|
#### VCPKG_OVERLAY_TRIPLETS
|
||
|
|
|
||
|
|
This environment variable allows users to add directories to search for triplets.
|
||
|
|
[Example: overlay triplets](../examples/overlay-triplets-linux-dynamic.md).
|
||
|
|
List paths to overlays using the platform dependent PATH separator (Windows `;`, others `:`)
|
||
|
|
|
||
|
|
#### VCPKG_FORCE_SYSTEM_BINARIES
|
||
|
|
|
||
|
|
This environment variable, if set, suppresses the downloading of CMake and Ninja and forces the use of the system binaries.
|
||
|
|
|
||
|
|
#### VCPKG_FORCE_DOWNLOADED_BINARIES
|
||
|
|
|
||
|
|
This environment variable, if set, ignores the use of the system binaries and will always download and use the version defined by vcpkg.
|
||
|
|
|
||
|
|
#### VCPKG_KEEP_ENV_VARS
|
||
|
|
|
||
|
|
This environment variable can be set to a list of environment variables, separated by `;`, which will be propagated to
|
||
|
|
the build environment.
|
||
|
|
|
||
|
|
The values of the kept variables will not be tracked in package ABIs and will not cause rebuilds when they change. To
|
||
|
|
pass in environment variables that should cause rebuilds on change, see [`VCPKG_ENV_PASSTHROUGH`](triplets.md#VCPKG_ENV_PASSTHROUGH).
|
||
|
|
|
||
|
|
Example: `FOO_SDK_DIR;BAR_SDK_DIR`
|
||
|
|
|
||
|
|
#### VCPKG_MAX_CONCURRENCY
|
||
|
|
|
||
|
|
This environment variables limits the amount of concurrency requested by underlying buildsystems. If unspecified, this defaults to logical cores + 1.
|
||
|
|
|
||
|
|
#### VCPKG_DEFAULT_BINARY_CACHE
|
||
|
|
|
||
|
|
This environment variable redirects the default location to store binary packages. See [Binary Caching](binarycaching.md#configuration) for more details.
|
||
|
|
|
||
|
|
#### VCPKG_BINARY_SOURCES
|
||
|
|
|
||
|
|
This environment variable adds or removes binary sources. See [Binary Caching](binarycaching.md#configuration) for more details.
|
||
|
|
|
||
|
|
#### VCPKG_NUGET_REPOSITORY
|
||
|
|
|
||
|
|
This environment variable changes the metadata of produced NuGet packages. See [Binary Caching](binarycaching.md#configuration) for more details.
|
||
|
|
|
||
|
|
#### VCPKG_USE_NUGET_CACHE
|
||
|
|
|
||
|
|
This environment variable allows using NuGet's cache for every nuget-based binary source. See [Binary Caching](binarycaching.md#nuget-provider-configuration) for more details.
|
||
|
|
|
||
|
|
#### X_VCPKG_ASSET_SOURCES
|
||
|
|
|
||
|
|
> Note: This is an experimental feature and may change or be removed at any time
|
||
|
|
|
||
|
|
This environment variable allows using a private mirror for all SHA512-tagged assets. See [Asset Caching](assetcaching.md) for more details.
|