man/man7/cmake-presets.7

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.TH "CMAKE-PRESETS" "7" "Apr 12, 2022" "3.23.1" "CMake"
.SH NAME
cmake-presets \- CMakePresets.json
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.SH INTRODUCTION
.sp
One problem that CMake users often face is sharing settings with other people
for common ways to configure a project. This may be done to support CI builds,
or for users who frequently use the same build. CMake supports two main files,
\fBCMakePresets.json\fP and \fBCMakeUserPresets.json\fP, that allow users to
specify common configure options and share them with others. CMake also
supports files included with the \fBinclude\fP field.
.sp
\fBCMakePresets.json\fP and \fBCMakeUserPresets.json\fP live in the project\(aqs root
directory. They both have exactly the same format, and both are optional
(though at least one must be present if \fB\-\-preset\fP is specified).
\fBCMakePresets.json\fP is meant to specify project\-wide build details, while
\fBCMakeUserPresets.json\fP is meant for developers to specify their own local
build details.
.sp
\fBCMakePresets.json\fP may be checked into a version control system, and
\fBCMakeUserPresets.json\fP should NOT be checked in. For example, if a
project is using Git, \fBCMakePresets.json\fP may be tracked, and
\fBCMakeUserPresets.json\fP should be added to the \fB\&.gitignore\fP\&.
.SH FORMAT
.sp
The files are a JSON document with an object as the root:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
{
  "version": 4,
  "cmakeMinimumRequired": {
    "major": 3,
    "minor": 23,
    "patch": 0
  },
  "include": [
    "otherThings.json",
    "moreThings.json"
  ],
  "configurePresets": [
    {
      "name": "default",
      "displayName": "Default Config",
      "description": "Default build using Ninja generator",
      "generator": "Ninja",
      "binaryDir": "${sourceDir}/build/default",
      "cacheVariables": {
        "FIRST_CACHE_VARIABLE": {
          "type": "BOOL",
          "value": "OFF"
        },
        "SECOND_CACHE_VARIABLE": "ON"
      },
      "environment": {
        "MY_ENVIRONMENT_VARIABLE": "Test",
        "PATH": "$env{HOME}/ninja/bin:$penv{PATH}"
      },
      "vendor": {
        "example.com/ExampleIDE/1.0": {
          "autoFormat": true
        }
      }
    },
    {
      "name": "ninja\-multi",
      "inherits": "default",
      "displayName": "Ninja Multi\-Config",
      "description": "Default build using Ninja Multi\-Config generator",
      "generator": "Ninja Multi\-Config"
    },
    {
      "name": "windows\-only",
      "inherits": "default",
      "displayName": "Windows\-only configuration",
      "description": "This build is only available on Windows",
      "condition": {
        "type": "equals",
        "lhs": "${hostSystemName}",
        "rhs": "Windows"
      }
    }
  ],
  "buildPresets": [
    {
      "name": "default",
      "configurePreset": "default"
    }
  ],
  "testPresets": [
    {
      "name": "default",
      "configurePreset": "default",
      "output": {"outputOnFailure": true},
      "execution": {"noTestsAction": "error", "stopOnFailure": true}
    }
  ],
  "vendor": {
    "example.com/ExampleIDE/1.0": {
      "autoFormat": false
    }
  }
}

.ft P
.fi
.UNINDENT
.UNINDENT
.sp
The root object recognizes the following fields:
.sp
\fBversion\fP
.INDENT 0.0
.INDENT 3.5
A required integer representing the version of the JSON schema.
The supported versions are \fB1\fP, \fB2\fP, \fB3\fP, and \fB4\fP\&.
.UNINDENT
.UNINDENT
.sp
\fBcmakeMinimumRequired\fP
.INDENT 0.0
.INDENT 3.5
An optional object representing the minimum version of CMake needed to
build this project. This object consists of the following fields:
.sp
\fBmajor\fP
.INDENT 0.0
.INDENT 3.5
An optional integer representing the major version.
.UNINDENT
.UNINDENT
.sp
\fBminor\fP
.INDENT 0.0
.INDENT 3.5
An optional integer representing the minor version.
.UNINDENT
.UNINDENT
.sp
\fBpatch\fP
.INDENT 0.0
.INDENT 3.5
An optional integer representing the patch version.
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.sp
\fBinclude\fP
.INDENT 0.0
.INDENT 3.5
An optional array of strings representing files to include. If the filenames
are not absolute, they are considered relative to the current file.
This is allowed in preset files specifying version \fB4\fP or above.
See \fI\%Includes\fP for discussion of the constraints on included files.
.UNINDENT
.UNINDENT
.sp
\fBvendor\fP
.INDENT 0.0
.INDENT 3.5
An optional map containing vendor\-specific information. CMake does not
interpret the contents of this field except to verify that it is a map if
it does exist. However, the keys should be a vendor\-specific domain name
followed by a \fB/\fP\-separated path. For example, the Example IDE 1.0 could
use \fBexample.com/ExampleIDE/1.0\fP\&. The value of each field can be anything
desired by the vendor, though will typically be a map.
.UNINDENT
.UNINDENT
.sp
\fBconfigurePresets\fP
.INDENT 0.0
.INDENT 3.5
An optional array of \fI\%Configure Preset\fP objects.
This is allowed in preset files specifying version \fB1\fP or above.
.UNINDENT
.UNINDENT
.sp
\fBbuildPresets\fP
.INDENT 0.0
.INDENT 3.5
An optional array of \fI\%Build Preset\fP objects.
This is allowed in preset files specifying version \fB2\fP or above.
.UNINDENT
.UNINDENT
.sp
\fBtestPresets\fP
.INDENT 0.0
.INDENT 3.5
An optional array of \fI\%Test Preset\fP objects.
This is allowed in preset files specifying version \fB2\fP or above.
.UNINDENT
.UNINDENT
.SS Includes
.sp
\fBCMakePresets.json\fP and \fBCMakeUserPresets.json\fP can include other files
with the \fBinclude\fP field in file version \fB4\fP and later. Files included
by these files can also include other files. If \fBCMakePresets.json\fP and
\fBCMakeUserPresets.json\fP are both present, \fBCMakeUserPresets.json\fP
implicitly includes \fBCMakePresets.json\fP, even with no \fBinclude\fP field,
in all versions of the format.
.sp
If a preset file contains presets that inherit from presets in another file,
the file must include the other file either directly or indirectly.
Include cycles are not allowed among files. If \fBa.json\fP includes
\fBb.json\fP, \fBb.json\fP cannot include \fBa.json\fP\&. However, a file may be
included multiple times from the same file or from different files.
.sp
Files directly or indirectly included from \fBCMakePresets.json\fP should be
guaranteed to be provided by the project. \fBCMakeUserPresets.json\fP may
include files from anywhere.
.SS Configure Preset
.sp
Each entry of the \fBconfigurePresets\fP array is a JSON object
that may contain the following fields:
.sp
\fBname\fP
.INDENT 0.0
.INDENT 3.5
A required string representing the machine\-friendly name of the preset.
This identifier is used in the cmake \-\-preset option.
There must not be two configure presets in the union of \fBCMakePresets.json\fP
and \fBCMakeUserPresets.json\fP in the same directory with the same name.
However, a configure preset may have the same name as a build or test preset.
.UNINDENT
.UNINDENT
.sp
\fBhidden\fP
.INDENT 0.0
.INDENT 3.5
An optional boolean specifying whether or not a preset should be hidden.
If a preset is hidden, it cannot be used in the \fB\-\-preset=\fP argument,
will not show up in the \fBCMake GUI\fP, and does not
have to have a valid \fBgenerator\fP or \fBbinaryDir\fP, even from
inheritance. \fBhidden\fP presets are intended to be used as a base for
other presets to inherit via the \fBinherits\fP field.
.UNINDENT
.UNINDENT
.sp
\fBinherits\fP
.INDENT 0.0
.INDENT 3.5
An optional array of strings representing the names of presets to inherit
from. This field can also be a string, which is equivalent to an array
containing one string.
.sp
The preset will inherit all of the fields from the \fBinherits\fP
presets by default (except \fBname\fP, \fBhidden\fP, \fBinherits\fP,
\fBdescription\fP, and \fBdisplayName\fP), but can override them as
desired. If multiple \fBinherits\fP presets provide conflicting values for
the same field, the earlier preset in the \fBinherits\fP list will be
preferred.
.sp
A preset can only inherit from another preset that is defined in the
same file or in one of the files it includes (directly or indirectly).
Presets in \fBCMakePresets.json\fP may not inherit from presets in
\fBCMakeUserPresets.json\fP\&.
.UNINDENT
.UNINDENT
.sp
\fBcondition\fP
.INDENT 0.0
.INDENT 3.5
An optional \fI\%Condition\fP object. This is allowed in preset files specifying
version \fB3\fP or above.
.UNINDENT
.UNINDENT
.sp
\fBvendor\fP
.INDENT 0.0
.INDENT 3.5
An optional map containing vendor\-specific information. CMake does not
interpret the contents of this field except to verify that it is a map
if it does exist. However, it should follow the same conventions as the
root\-level \fBvendor\fP field. If vendors use their own per\-preset
\fBvendor\fP field, they should implement inheritance in a sensible manner
when appropriate.
.UNINDENT
.UNINDENT
.sp
\fBdisplayName\fP
.INDENT 0.0
.INDENT 3.5
An optional string with a human\-friendly name of the preset.
.UNINDENT
.UNINDENT
.sp
\fBdescription\fP
.INDENT 0.0
.INDENT 3.5
An optional string with a human\-friendly description of the preset.
.UNINDENT
.UNINDENT
.sp
\fBgenerator\fP
.INDENT 0.0
.INDENT 3.5
An optional string representing the generator to use for the preset. If
\fBgenerator\fP is not specified, it must be inherited from the
\fBinherits\fP preset (unless this preset is \fBhidden\fP). In version \fB3\fP
or above, this field may be omitted to fall back to regular generator
discovery procedure.
.sp
Note that for Visual Studio generators, unlike in the command line \fB\-G\fP
argument, you cannot include the platform name in the generator name. Use
the \fBarchitecture\fP field instead.
.UNINDENT
.UNINDENT
.sp
\fBarchitecture\fP, \fBtoolset\fP
.INDENT 0.0
.INDENT 3.5
Optional fields representing the platform and toolset, respectively, for
generators that support them. Each may be either a string or an object
with the following fields:
.sp
\fBvalue\fP
.INDENT 0.0
.INDENT 3.5
An optional string representing the value.
.UNINDENT
.UNINDENT
.sp
\fBstrategy\fP
.INDENT 0.0
.INDENT 3.5
An optional string telling CMake how to handle the \fBarchitecture\fP or
\fBtoolset\fP field. Valid values are:
.sp
\fB"set"\fP
.INDENT 0.0
.INDENT 3.5
Set the respective value. This will result in an error for generators
that do not support the respective field.
.UNINDENT
.UNINDENT
.sp
\fB"external"\fP
.INDENT 0.0
.INDENT 3.5
Do not set the value, even if the generator supports it. This is
useful if, for example, a preset uses the Ninja generator, and an IDE
knows how to set up the Visual C++ environment from the
\fBarchitecture\fP and \fBtoolset\fP fields. In that case, CMake will
ignore the field, but the IDE can use them to set up the environment
before invoking CMake.
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.sp
\fBtoolchainFile\fP
.INDENT 0.0
.INDENT 3.5
An optional string representing the path to the toolchain file.
This field supports \fI\%macro expansion\fP\&. If a relative path is specified,
it is calculated relative to the build directory, and if not found,
relative to the source directory. This field takes precedence over any
\fBCMAKE_TOOLCHAIN_FILE\fP value. It is allowed in preset files
specifying version \fB3\fP or above.
.UNINDENT
.UNINDENT
.sp
\fBbinaryDir\fP
.INDENT 0.0
.INDENT 3.5
An optional string representing the path to the output binary directory.
This field supports \fI\%macro expansion\fP\&. If a relative path is specified,
it is calculated relative to the source directory. If \fBbinaryDir\fP is not
specified, it must be inherited from the \fBinherits\fP preset (unless this
preset is \fBhidden\fP). In version \fB3\fP or above, this field may be
omitted.
.UNINDENT
.UNINDENT
.sp
\fBinstallDir\fP
.INDENT 0.0
.INDENT 3.5
An optional string representing the path to the installation directory.
This field supports \fI\%macro expansion\fP\&. If a relative path is specified,
it is calculated relative to the source directory. This is allowed in
preset files specifying version \fB3\fP or above.
.UNINDENT
.UNINDENT
.sp
\fBcmakeExecutable\fP
.INDENT 0.0
.INDENT 3.5
An optional string representing the path to the CMake executable to use
for this preset. This is reserved for use by IDEs, and is not used by
CMake itself. IDEs that use this field should expand any macros in it.
.UNINDENT
.UNINDENT
.sp
\fBcacheVariables\fP
.INDENT 0.0
.INDENT 3.5
An optional map of cache variables. The key is the variable name (which
may not be an empty string), and the value is either \fBnull\fP, a boolean
(which is equivalent to a value of \fB"TRUE"\fP or \fB"FALSE"\fP and a type
of \fBBOOL\fP), a string representing the value of the variable (which
supports \fI\%macro expansion\fP), or an object with the following fields:
.sp
\fBtype\fP
.INDENT 0.0
.INDENT 3.5
An optional string representing the type of the variable.
.UNINDENT
.UNINDENT
.sp
\fBvalue\fP
.INDENT 0.0
.INDENT 3.5
A required string or boolean representing the value of the variable.
A boolean is equivalent to \fB"TRUE"\fP or \fB"FALSE"\fP\&. This field
supports \fI\%macro expansion\fP\&.
.UNINDENT
.UNINDENT
.sp
Cache variables are inherited through the \fBinherits\fP field, and the
preset\(aqs variables will be the union of its own \fBcacheVariables\fP and
the \fBcacheVariables\fP from all its parents. If multiple presets in this
union define the same variable, the standard rules of \fBinherits\fP are
applied. Setting a variable to \fBnull\fP causes it to not be set, even if
a value was inherited from another preset.
.UNINDENT
.UNINDENT
.sp
\fBenvironment\fP
.INDENT 0.0
.INDENT 3.5
An optional map of environment variables. The key is the variable name
(which may not be an empty string), and the value is either \fBnull\fP or
a string representing the value of the variable. Each variable is set
regardless of whether or not a value was given to it by the process\(aqs
environment. This field supports \fI\%macro expansion\fP, and environment
variables in this map may reference each other, and may be listed in any
order, as long as such references do not cause a cycle (for example,
if \fBENV_1\fP is \fB$env{ENV_2}\fP, \fBENV_2\fP may not be \fB$env{ENV_1}\fP\&.)
.sp
Environment variables are inherited through the \fBinherits\fP field, and
the preset\(aqs environment will be the union of its own \fBenvironment\fP and
the \fBenvironment\fP from all its parents. If multiple presets in this
union define the same variable, the standard rules of \fBinherits\fP are
applied. Setting a variable to \fBnull\fP causes it to not be set, even if
a value was inherited from another preset.
.UNINDENT
.UNINDENT
.sp
\fBwarnings\fP
.INDENT 0.0
.INDENT 3.5
An optional object specifying the warnings to enable. The object may
contain the following fields:
.sp
\fBdev\fP
.INDENT 0.0
.INDENT 3.5
An optional boolean. Equivalent to passing \fB\-Wdev\fP or \fB\-Wno\-dev\fP
on the command line. This may not be set to \fBfalse\fP if \fBerrors.dev\fP
is set to \fBtrue\fP\&.
.UNINDENT
.UNINDENT
.sp
\fBdeprecated\fP
.INDENT 0.0
.INDENT 3.5
An optional boolean. Equivalent to passing \fB\-Wdeprecated\fP or
\fB\-Wno\-deprecated\fP on the command line. This may not be set to
\fBfalse\fP if \fBerrors.deprecated\fP is set to \fBtrue\fP\&.
.UNINDENT
.UNINDENT
.sp
\fBuninitialized\fP
.INDENT 0.0
.INDENT 3.5
An optional boolean. Setting this to \fBtrue\fP is equivalent to passing
\fB\-\-warn\-uninitialized\fP on the command line.
.UNINDENT
.UNINDENT
.sp
\fBunusedCli\fP
.INDENT 0.0
.INDENT 3.5
An optional boolean. Setting this to \fBfalse\fP is equivalent to passing
\fB\-\-no\-warn\-unused\-cli\fP on the command line.
.UNINDENT
.UNINDENT
.sp
\fBsystemVars\fP
.INDENT 0.0
.INDENT 3.5
An optional boolean. Setting this to \fBtrue\fP is equivalent to passing
\fB\-\-check\-system\-vars\fP on the command line.
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.sp
\fBerrors\fP
.INDENT 0.0
.INDENT 3.5
An optional object specifying the errors to enable. The object may
contain the following fields:
.sp
\fBdev\fP
.INDENT 0.0
.INDENT 3.5
An optional boolean. Equivalent to passing \fB\-Werror=dev\fP or
\fB\-Wno\-error=dev\fP on the command line. This may not be set to \fBtrue\fP
if \fBwarnings.dev\fP is set to \fBfalse\fP\&.
.UNINDENT
.UNINDENT
.sp
\fBdeprecated\fP
.INDENT 0.0
.INDENT 3.5
An optional boolean. Equivalent to passing \fB\-Werror=deprecated\fP or
\fB\-Wno\-error=deprecated\fP on the command line. This may not be set to
\fBtrue\fP if \fBwarnings.deprecated\fP is set to \fBfalse\fP\&.
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.sp
\fBdebug\fP
.INDENT 0.0
.INDENT 3.5
An optional object specifying debug options. The object may contain the
following fields:
.sp
\fBoutput\fP
.INDENT 0.0
.INDENT 3.5
An optional boolean. Setting this to \fBtrue\fP is equivalent to passing
\fB\-\-debug\-output\fP on the command line.
.UNINDENT
.UNINDENT
.sp
\fBtryCompile\fP
.INDENT 0.0
.INDENT 3.5
An optional boolean. Setting this to \fBtrue\fP is equivalent to passing
\fB\-\-debug\-trycompile\fP on the command line.
.UNINDENT
.UNINDENT
.sp
\fBfind\fP
.INDENT 0.0
.INDENT 3.5
An optional boolean. Setting this to \fBtrue\fP is equivalent to passing
\fB\-\-debug\-find\fP on the command line.
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.SS Build Preset
.sp
Each entry of the \fBbuildPresets\fP array is a JSON object
that may contain the following fields:
.sp
\fBname\fP
.INDENT 0.0
.INDENT 3.5
A required string representing the machine\-friendly name of the preset.
This identifier is used in the
cmake \-\-build \-\-preset option.
There must not be two build presets in the union of \fBCMakePresets.json\fP
and \fBCMakeUserPresets.json\fP in the same directory with the same name.
However, a build preset may have the same name as a configure or test preset.
.UNINDENT
.UNINDENT
.sp
\fBhidden\fP
.INDENT 0.0
.INDENT 3.5
An optional boolean specifying whether or not a preset should be hidden.
If a preset is hidden, it cannot be used in the \fB\-\-preset\fP argument
and does not have to have a valid \fBconfigurePreset\fP, even from
inheritance. \fBhidden\fP presets are intended to be used as a base for
other presets to inherit via the \fBinherits\fP field.
.UNINDENT
.UNINDENT
.sp
\fBinherits\fP
.INDENT 0.0
.INDENT 3.5
An optional array of strings representing the names of presets to inherit
from. This field can also be a string, which is equivalent to an array
containing one string.
.sp
The preset will inherit all of the fields from the
\fBinherits\fP presets by default (except \fBname\fP, \fBhidden\fP,
\fBinherits\fP, \fBdescription\fP, and \fBdisplayName\fP), but can override
them as desired. If multiple \fBinherits\fP presets provide conflicting
values for the same field, the earlier preset in the \fBinherits\fP list
will be preferred.
.sp
A preset can only inherit from another preset that is defined in the
same file or in one of the files it includes (directly or indirectly).
Presets in \fBCMakePresets.json\fP may not inherit from presets in
\fBCMakeUserPresets.json\fP\&.
.UNINDENT
.UNINDENT
.sp
\fBcondition\fP
.INDENT 0.0
.INDENT 3.5
An optional \fI\%Condition\fP object. This is allowed in preset files specifying
version \fB3\fP or above.
.UNINDENT
.UNINDENT
.sp
\fBvendor\fP
.INDENT 0.0
.INDENT 3.5
An optional map containing vendor\-specific information. CMake does not
interpret the contents of this field except to verify that it is a map
if it does exist. However, it should follow the same conventions as the
root\-level \fBvendor\fP field. If vendors use their own per\-preset
\fBvendor\fP field, they should implement inheritance in a sensible manner
when appropriate.
.UNINDENT
.UNINDENT
.sp
\fBdisplayName\fP
.INDENT 0.0
.INDENT 3.5
An optional string with a human\-friendly name of the preset.
.UNINDENT
.UNINDENT
.sp
\fBdescription\fP
.INDENT 0.0
.INDENT 3.5
An optional string with a human\-friendly description of the preset.
.UNINDENT
.UNINDENT
.sp
\fBenvironment\fP
.INDENT 0.0
.INDENT 3.5
An optional map of environment variables. The key is the variable name
(which may not be an empty string), and the value is either \fBnull\fP or
a string representing the value of the variable. Each variable is set
regardless of whether or not a value was given to it by the process\(aqs
environment. This field supports macro expansion, and environment
variables in this map may reference each other, and may be listed in any
order, as long as such references do not cause a cycle (for example, if
\fBENV_1\fP is \fB$env{ENV_2}\fP, \fBENV_2\fP may not be \fB$env{ENV_1}\fP\&.)
.sp
Environment variables are inherited through the \fBinherits\fP field, and
the preset\(aqs environment will be the union of its own \fBenvironment\fP
and the \fBenvironment\fP from all its parents. If multiple presets in
this union define the same variable, the standard rules of \fBinherits\fP
are applied. Setting a variable to \fBnull\fP causes it to not be set,
even if a value was inherited from another preset.
.sp
\fBNOTE:\fP
.INDENT 0.0
.INDENT 3.5
For a CMake project using ExternalProject with a configuration preset
having environment variables needed in the ExternalProject, use a build
preset that inherits that configuration preset or the ExternalProject
will not have the environment variables set in the configuration preset.
Example: suppose the host defaults to one compiler (say Clang)
and the user wishes to use another compiler (say GCC). Set configuration
preset environment variables \fBCC\fP and \fBCXX\fP and use a build preset
that inherits that configuration preset. Otherwise the ExternalProject
may use a different (system default) compiler than the top\-level CMake
project.
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.sp
\fBconfigurePreset\fP
.INDENT 0.0
.INDENT 3.5
An optional string specifying the name of a configure preset to
associate with this build preset. If \fBconfigurePreset\fP is not
specified, it must be inherited from the inherits preset (unless this
preset is hidden). The build directory is inferred from the configure
preset, so the build will take place in the same \fBbinaryDir\fP that the
configuration did.
.UNINDENT
.UNINDENT
.sp
\fBinheritConfigureEnvironment\fP
.INDENT 0.0
.INDENT 3.5
An optional boolean that defaults to true. If true, the environment
variables from the associated configure preset are inherited after all
inherited build preset environments, but before environment variables
explicitly specified in this build preset.
.UNINDENT
.UNINDENT
.sp
\fBjobs\fP
.INDENT 0.0
.INDENT 3.5
An optional integer. Equivalent to passing \fB\-\-parallel\fP or \fB\-j\fP on
the command line.
.UNINDENT
.UNINDENT
.sp
\fBtargets\fP
.INDENT 0.0
.INDENT 3.5
An optional string or array of strings. Equivalent to passing
\fB\-\-target\fP or \fB\-t\fP on the command line. Vendors may ignore the
targets property or hide build presets that explicitly specify targets.
This field supports macro expansion.
.UNINDENT
.UNINDENT
.sp
\fBconfiguration\fP
.INDENT 0.0
.INDENT 3.5
An optional string. Equivalent to passing \fB\-\-config\fP on the command
line.
.UNINDENT
.UNINDENT
.sp
\fBcleanFirst\fP
.INDENT 0.0
.INDENT 3.5
An optional bool. If true, equivalent to passing \fB\-\-clean\-first\fP on
the command line.
.UNINDENT
.UNINDENT
.sp
\fBresolvePackageReferences\fP
.INDENT 0.0
.INDENT 3.5
An optional string that specifies the package resolve mode. This is
allowed in preset files specifying version \fB4\fP or above.
.sp
Package references are used to define dependencies to packages from
external package managers. Currently only NuGet in combination with the
Visual Studio generator is supported. If there are no targets that define
package references, this option does nothing. Valid values are:
.sp
\fBon\fP
.INDENT 0.0
.INDENT 3.5
Causes package references to be resolved before attempting a build.
.UNINDENT
.UNINDENT
.sp
\fBoff\fP
.INDENT 0.0
.INDENT 3.5
Package references will not be resolved. Note that this may cause
errors in some build environments, such as .NET SDK style projects.
.UNINDENT
.UNINDENT
.sp
\fBonly\fP
.INDENT 0.0
.INDENT 3.5
Only resolve package references, but do not perform a build.
.UNINDENT
.UNINDENT
.sp
\fBNOTE:\fP
.INDENT 0.0
.INDENT 3.5
The command line parameter \fB\-\-resolve\-package\-references\fP will take
priority over this setting. If the command line parameter is not provided
and this setting is not specified, an environment\-specific cache variable
will be evaluated to decide, if package restoration should be performed.
.sp
When using the Visual Studio generator, package references are defined
using the \fBVS_PACKAGE_REFERENCES\fP property. Package references
are restored using NuGet. It can be disabled by setting the
\fBCMAKE_VS_NUGET_PACKAGE_RESTORE\fP variable to \fBOFF\fP\&. This can also be
done from within a configure preset.
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.sp
\fBverbose\fP
.INDENT 0.0
.INDENT 3.5
An optional bool. If true, equivalent to passing \fB\-\-verbose\fP on the
command line.
.UNINDENT
.UNINDENT
.sp
\fBnativeToolOptions\fP
.INDENT 0.0
.INDENT 3.5
An optional array of strings. Equivalent to passing options after \fB\-\-\fP
on the command line. The array values support macro expansion.
.UNINDENT
.UNINDENT
.SS Test Preset
.sp
Each entry of the \fBtestPresets\fP array is a JSON object
that may contain the following fields:
.sp
\fBname\fP
.INDENT 0.0
.INDENT 3.5
A required string representing the machine\-friendly name of the preset.
This identifier is used in the ctest \-\-preset option.
There must not be two test presets in the union of \fBCMakePresets.json\fP
and \fBCMakeUserPresets.json\fP in the same directory with the same name.
However, a test preset may have the same name as a configure or build preset.
.UNINDENT
.UNINDENT
.sp
\fBhidden\fP
.INDENT 0.0
.INDENT 3.5
An optional boolean specifying whether or not a preset should be hidden.
If a preset is hidden, it cannot be used in the \fB\-\-preset\fP argument
and does not have to have a valid \fBconfigurePreset\fP, even from
inheritance. \fBhidden\fP presets are intended to be used as a base for
other presets to inherit via the \fBinherits\fP field.
.UNINDENT
.UNINDENT
.sp
\fBinherits\fP
.INDENT 0.0
.INDENT 3.5
An optional array of strings representing the names of presets to inherit
from. This field can also be a string, which is equivalent to an array
containing one string.
.sp
The preset will inherit all of the fields from the
\fBinherits\fP presets by default (except \fBname\fP, \fBhidden\fP,
\fBinherits\fP, \fBdescription\fP, and \fBdisplayName\fP), but can override
them as desired. If multiple \fBinherits\fP presets provide conflicting
values for the same field, the earlier preset in the \fBinherits\fP list
will be preferred.
.sp
A preset can only inherit from another preset that is defined in the
same file or in one of the files it includes (directly or indirectly).
Presets in \fBCMakePresets.json\fP may not inherit from presets in
\fBCMakeUserPresets.json\fP\&.
.UNINDENT
.UNINDENT
.sp
\fBcondition\fP
.INDENT 0.0
.INDENT 3.5
An optional \fI\%Condition\fP object. This is allowed in preset files specifying
version \fB3\fP or above.
.UNINDENT
.UNINDENT
.sp
\fBvendor\fP
.INDENT 0.0
.INDENT 3.5
An optional map containing vendor\-specific information. CMake does not
interpret the contents of this field except to verify that it is a map
if it does exist. However, it should follow the same conventions as the
root\-level \fBvendor\fP field. If vendors use their own per\-preset
\fBvendor\fP field, they should implement inheritance in a sensible manner
when appropriate.
.UNINDENT
.UNINDENT
.sp
\fBdisplayName\fP
.INDENT 0.0
.INDENT 3.5
An optional string with a human\-friendly name of the preset.
.UNINDENT
.UNINDENT
.sp
\fBdescription\fP
.INDENT 0.0
.INDENT 3.5
An optional string with a human\-friendly description of the preset.
.UNINDENT
.UNINDENT
.sp
\fBenvironment\fP
.INDENT 0.0
.INDENT 3.5
An optional map of environment variables. The key is the variable name
(which may not be an empty string), and the value is either \fBnull\fP or
a string representing the value of the variable. Each variable is set
regardless of whether or not a value was given to it by the process\(aqs
environment. This field supports macro expansion, and environment
variables in this map may reference each other, and may be listed in any
order, as long as such references do not cause a cycle (for example, if
\fBENV_1\fP is \fB$env{ENV_2}\fP, \fBENV_2\fP may not be \fB$env{ENV_1}\fP\&.)
.sp
Environment variables are inherited through the \fBinherits\fP field, and
the preset\(aqs environment will be the union of its own \fBenvironment\fP
and the \fBenvironment\fP from all its parents. If multiple presets in
this union define the same variable, the standard rules of \fBinherits\fP
are applied. Setting a variable to \fBnull\fP causes it to not be set,
even if a value was inherited from another preset.
.UNINDENT
.UNINDENT
.sp
\fBconfigurePreset\fP
.INDENT 0.0
.INDENT 3.5
An optional string specifying the name of a configure preset to
associate with this test preset. If \fBconfigurePreset\fP is not
specified, it must be inherited from the inherits preset (unless this
preset is hidden). The build directory is inferred from the configure
preset, so tests will run in the same \fBbinaryDir\fP that the
configuration did and build did.
.UNINDENT
.UNINDENT
.sp
\fBinheritConfigureEnvironment\fP
.INDENT 0.0
.INDENT 3.5
An optional boolean that defaults to true. If true, the environment
variables from the associated configure preset are inherited after all
inherited test preset environments, but before environment variables
explicitly specified in this test preset.
.UNINDENT
.UNINDENT
.sp
\fBconfiguration\fP
.INDENT 0.0
.INDENT 3.5
An optional string. Equivalent to passing \fB\-\-build\-config\fP on the
command line.
.UNINDENT
.UNINDENT
.sp
\fBoverwriteConfigurationFile\fP
.INDENT 0.0
.INDENT 3.5
An optional array of configuration options to overwrite options
specified in the CTest configuration file. Equivalent to passing
\fB\-\-overwrite\fP for each value in the array. The array values
support macro expansion.
.UNINDENT
.UNINDENT
.sp
\fBoutput\fP
.INDENT 0.0
.INDENT 3.5
An optional object specifying output options. The object may contain the
following fields.
.sp
\fBshortProgress\fP
.INDENT 0.0
.INDENT 3.5
An optional bool. If true, equivalent to passing \fB\-\-progress\fP on the
command line.
.UNINDENT
.UNINDENT
.sp
\fBverbosity\fP
.INDENT 0.0
.INDENT 3.5
An optional string specifying verbosity level. Must be one of the
following:
.sp
\fBdefault\fP
.INDENT 0.0
.INDENT 3.5
Equivalent to passing no verbosity flags on the command line.
.UNINDENT
.UNINDENT
.sp
\fBverbose\fP
.INDENT 0.0
.INDENT 3.5
Equivalent to passing \fB\-\-verbose\fP on the command line.
.UNINDENT
.UNINDENT
.sp
\fBextra\fP
.INDENT 0.0
.INDENT 3.5
Equivalent to passing \fB\-\-extra\-verbose\fP on the command line.
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.sp
\fBdebug\fP
.INDENT 0.0
.INDENT 3.5
An optional bool. If true, equivalent to passing \fB\-\-debug\fP on the
command line.
.UNINDENT
.UNINDENT
.sp
\fBoutputOnFailure\fP
.INDENT 0.0
.INDENT 3.5
An optional bool. If true, equivalent to passing
\fB\-\-output\-on\-failure\fP on the command line.
.UNINDENT
.UNINDENT
.sp
\fBquiet\fP
.INDENT 0.0
.INDENT 3.5
An optional bool. If true, equivalent to passing \fB\-\-quiet\fP on the
command line.
.UNINDENT
.UNINDENT
.sp
\fBoutputLogFile\fP
.INDENT 0.0
.INDENT 3.5
An optional string specifying a path to a log file. Equivalent to
passing \fB\-\-output\-log\fP on the command line. This field supports
macro expansion.
.UNINDENT
.UNINDENT
.sp
\fBlabelSummary\fP
.INDENT 0.0
.INDENT 3.5
An optional bool. If false, equivalent to passing
\fB\-\-no\-label\-summary\fP on the command line.
.UNINDENT
.UNINDENT
.sp
\fBsubprojectSummary\fP
.INDENT 0.0
.INDENT 3.5
An optional bool. If false, equivalent to passing
\fB\-\-no\-subproject\-summary\fP on the command line.
.UNINDENT
.UNINDENT
.sp
\fBmaxPassedTestOutputSize\fP
.INDENT 0.0
.INDENT 3.5
An optional integer specifying the maximum output for passed tests in
bytes. Equivalent to passing \fB\-\-test\-output\-size\-passed\fP on the
command line.
.UNINDENT
.UNINDENT
.sp
\fBmaxFailedTestOutputSize\fP
.INDENT 0.0
.INDENT 3.5
An optional integer specifying the maximum output for failed tests in
bytes. Equivalent to passing \fB\-\-test\-output\-size\-failed\fP on the
command line.
.UNINDENT
.UNINDENT
.sp
\fBmaxTestNameWidth\fP
.INDENT 0.0
.INDENT 3.5
An optional integer specifying the maximum width of a test name to
output. Equivalent to passing \fB\-\-max\-width\fP on the command line.
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.sp
\fBfilter\fP
.INDENT 0.0
.INDENT 3.5
An optional object specifying how to filter the tests to run. The object
may contain the following fields.
.sp
\fBinclude\fP
.INDENT 0.0
.INDENT 3.5
An optional object specifying which tests to include. The object may
contain the following fields.
.sp
\fBname\fP
.INDENT 0.0
.INDENT 3.5
An optional string specifying a regex for test names. Equivalent to
passing \fB\-\-tests\-regex\fP on the command line. This field supports
macro expansion. CMake regex syntax is described under
string(REGEX)\&.
.UNINDENT
.UNINDENT
.sp
\fBlabel\fP
.INDENT 0.0
.INDENT 3.5
An optional string specifying a regex for test labels. Equivalent to
passing \fB\-\-label\-regex\fP on the command line. This field supports
macro expansion.
.UNINDENT
.UNINDENT
.sp
\fBuseUnion\fP
.INDENT 0.0
.INDENT 3.5
An optional bool. Equivalent to passing \fB\-\-union\fP on the command
line.
.UNINDENT
.UNINDENT
.sp
\fBindex\fP
.INDENT 0.0
.INDENT 3.5
An optional object specifying tests to include by test index. The
object may contain the following fields. Can also be an optional
string specifying a file with the command line syntax for
\fB\-\-tests\-information\fP\&. If specified as a string, this field
supports macro expansion.
.sp
\fBstart\fP
.INDENT 0.0
.INDENT 3.5
An optional integer specifying a test index to start testing at.
.UNINDENT
.UNINDENT
.sp
\fBend\fP
.INDENT 0.0
.INDENT 3.5
An optional integer specifying a test index to stop testing at.
.UNINDENT
.UNINDENT
.sp
\fBstride\fP
.INDENT 0.0
.INDENT 3.5
An optional integer specifying the increment.
.UNINDENT
.UNINDENT
.sp
\fBspecificTests\fP
.INDENT 0.0
.INDENT 3.5
An optional array of integers specifying specific test indices to
run.
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.sp
\fBexclude\fP
.INDENT 0.0
.INDENT 3.5
An optional object specifying which tests to exclude. The object may
contain the following fields.
.sp
\fBname\fP
.INDENT 0.0
.INDENT 3.5
An optional string specifying a regex for test names. Equivalent to
passing \fB\-\-exclude\-regex\fP on the command line. This field supports
macro expansion.
.UNINDENT
.UNINDENT
.sp
\fBlabel\fP
.INDENT 0.0
.INDENT 3.5
An optional string specifying a regex for test labels. Equivalent to
passing \fB\-\-label\-exclude\fP on the command line. This field supports
macro expansion.
.UNINDENT
.UNINDENT
.sp
\fBfixtures\fP
.INDENT 0.0
.INDENT 3.5
An optional object specifying which fixtures to exclude from adding
tests. The object may contain the following fields.
.sp
\fBany\fP
.INDENT 0.0
.INDENT 3.5
An optional string specifying a regex for text fixtures to exclude
from adding any tests. Equivalent to \fB\-\-fixture\-exclude\-any\fP on
the command line. This field supports macro expansion.
.UNINDENT
.UNINDENT
.sp
\fBsetup\fP
.INDENT 0.0
.INDENT 3.5
An optional string specifying a regex for text fixtures to exclude
from adding setup tests. Equivalent to \fB\-\-fixture\-exclude\-setup\fP
on the command line. This field supports macro expansion.
.UNINDENT
.UNINDENT
.sp
\fBcleanup\fP
.INDENT 0.0
.INDENT 3.5
An optional string specifying a regex for text fixtures to exclude
from adding cleanup tests. Equivalent to
\fB\-\-fixture\-exclude\-cleanup\fP on the command line. This field
supports macro expansion.
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.sp
\fBexecution\fP
.INDENT 0.0
.INDENT 3.5
An optional object specifying options for test execution. The object may
contain the following fields.
.sp
\fBstopOnFailure\fP
.INDENT 0.0
.INDENT 3.5
An optional bool. If true, equivalent to passing \fB\-\-stop\-on\-failure\fP
on the command line.
.UNINDENT
.UNINDENT
.sp
\fBenableFailover\fP
.INDENT 0.0
.INDENT 3.5
An optional bool. If true, equivalent to passing \fB\-F\fP on the command
line.
.UNINDENT
.UNINDENT
.sp
\fBjobs\fP
.INDENT 0.0
.INDENT 3.5
An optional integer. Equivalent to passing \fB\-\-parallel\fP on the
command line.
.UNINDENT
.UNINDENT
.sp
\fBresourceSpecFile\fP
.INDENT 0.0
.INDENT 3.5
An optional string. Equivalent to passing \fB\-\-resource\-spec\-file\fP on
the command line. This field supports macro expansion.
.UNINDENT
.UNINDENT
.sp
\fBtestLoad\fP
.INDENT 0.0
.INDENT 3.5
An optional integer. Equivalent to passing \fB\-\-test\-load\fP on the
command line.
.UNINDENT
.UNINDENT
.sp
\fBshowOnly\fP
.INDENT 0.0
.INDENT 3.5
An optional string. Equivalent to passing \fB\-\-show\-only\fP on the
command line. The string must be one of the following values:
.sp
\fBhuman\fP
.sp
\fBjson\-v1\fP
.UNINDENT
.UNINDENT
.sp
\fBrepeat\fP
.INDENT 0.0
.INDENT 3.5
An optional object specifying how to repeat tests. Equivalent to
passing \fB\-\-repeat\fP on the command line. The object must have the
following fields.
.sp
\fBmode\fP
.INDENT 0.0
.INDENT 3.5
A required string. Must be one of the following values:
.sp
\fBuntil\-fail\fP
.sp
\fBuntil\-pass\fP
.sp
\fBafter\-timeout\fP
.UNINDENT
.UNINDENT
.sp
\fBcount\fP
.INDENT 0.0
.INDENT 3.5
A required integer.
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.sp
\fBinteractiveDebugging\fP
.INDENT 0.0
.INDENT 3.5
An optional bool. If true, equivalent to passing
\fB\-\-interactive\-debug\-mode 1\fP on the command line. If false,
equivalent to passing \fB\-\-interactive\-debug\-mode 0\fP on the command
line.
.UNINDENT
.UNINDENT
.sp
\fBscheduleRandom\fP
.INDENT 0.0
.INDENT 3.5
An optional bool. If true, equivalent to passing \fB\-\-schedule\-random\fP
on the command line.
.UNINDENT
.UNINDENT
.sp
\fBtimeout\fP
.INDENT 0.0
.INDENT 3.5
An optional integer. Equivalent to passing \fB\-\-timeout\fP on the
command line.
.UNINDENT
.UNINDENT
.sp
\fBnoTestsAction\fP
.INDENT 0.0
.INDENT 3.5
An optional string specifying the behavior if no tests are found. Must
be one of the following values:
.sp
\fBdefault\fP
.INDENT 0.0
.INDENT 3.5
Equivalent to not passing any value on the command line.
.UNINDENT
.UNINDENT
.sp
\fBerror\fP
.INDENT 0.0
.INDENT 3.5
Equivalent to passing \fB\-\-no\-tests=error\fP on the command line.
.UNINDENT
.UNINDENT
.sp
\fBignore\fP
.INDENT 0.0
.INDENT 3.5
Equivalent to passing \fB\-\-no\-tests=ignore\fP on the command line.
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.SS Condition
.sp
The \fBcondition\fP field of a preset, allowed in preset files specifying version
\fB3\fP or above, is used to determine whether or not the preset is enabled. For
example, this can be used to disable a preset on platforms other than Windows.
\fBcondition\fP may be either a boolean, \fBnull\fP, or an object. If it is a
boolean, the boolean indicates whether the preset is enabled or disabled. If it
is \fBnull\fP, the preset is enabled, but the \fBnull\fP condition is not inherited
by any presets that may inherit from the preset. Sub\-conditions (for example in
a \fBnot\fP, \fBanyOf\fP, or \fBallOf\fP condition) may not be \fBnull\fP\&. If it is an
object, it has the following fields:
.sp
\fBtype\fP
.INDENT 0.0
.INDENT 3.5
A required string with one of the following values:
.sp
\fB"const"\fP
.INDENT 0.0
.INDENT 3.5
Indicates that the condition is constant. This is equivalent to using a
boolean in place of the object. The condition object will have the
following additional fields:
.sp
\fBvalue\fP
.INDENT 0.0
.INDENT 3.5
A required boolean which provides a constant value for the condition\(aqs
evaluation.
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.sp
\fB"equals"\fP
.sp
\fB"notEquals"\fP
.INDENT 0.0
.INDENT 3.5
Indicates that the condition compares two strings to see if they are equal
(or not equal). The condition object will have the following additional
fields:
.sp
\fBlhs\fP
.INDENT 0.0
.INDENT 3.5
First string to compare. This field supports macro expansion.
.UNINDENT
.UNINDENT
.sp
\fBrhs\fP
.INDENT 0.0
.INDENT 3.5
Second string to compare. This field supports macro expansion.
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.sp
\fB"inList"\fP
.sp
\fB"notInList"\fP
.INDENT 0.0
.INDENT 3.5
Indicates that the condition searches for a string in a list of strings.
The condition object will have the following additional fields:
.sp
\fBstring\fP
.INDENT 0.0
.INDENT 3.5
A required string to search for. This field supports macro expansion.
.UNINDENT
.UNINDENT
.sp
\fBlist\fP
.INDENT 0.0
.INDENT 3.5
A required list of strings to search. This field supports macro
expansion, and uses short\-circuit evaluation.
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.sp
\fB"matches"\fP
.sp
\fB"notMatches"\fP
.INDENT 0.0
.INDENT 3.5
Indicates that the condition searches for a regular expression in a string.
The condition object will have the following additional fields:
.sp
\fBstring\fP
.INDENT 0.0
.INDENT 3.5
A required string to search. This field supports macro expansion.
.UNINDENT
.UNINDENT
.sp
\fBregex\fP
.INDENT 0.0
.INDENT 3.5
A required regular expression to search for. This field supports macro
expansion.
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.sp
\fB"anyOf"\fP
.sp
\fB"allOf"\fP
.INDENT 0.0
.INDENT 3.5
Indicates that the condition is an aggregation of zero or more nested
conditions. The condition object will have the following additional fields:
.sp
\fBconditions\fP
.INDENT 0.0
.INDENT 3.5
A required array of condition objects. These conditions use short\-circuit
evaluation.
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.sp
\fB"not"\fP
.INDENT 0.0
.INDENT 3.5
Indicates that the condition is an inversion of another condition. The
condition object will have the following additional fields:
.sp
\fBcondition\fP
.INDENT 0.0
.INDENT 3.5
A required condition object.
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.SS Macro Expansion
.sp
As mentioned above, some fields support macro expansion. Macros are
recognized in the form \fB$<macro\-namespace>{<macro\-name>}\fP\&. All macros are
evaluated in the context of the preset being used, even if the macro is in a
field that was inherited from another preset. For example, if the \fBBase\fP
preset sets variable \fBPRESET_NAME\fP to \fB${presetName}\fP, and the
\fBDerived\fP preset inherits from \fBBase\fP, \fBPRESET_NAME\fP will be set to
\fBDerived\fP\&.
.sp
It is an error to not put a closing brace at the end of a macro name. For
example, \fB${sourceDir\fP is invalid. A dollar sign (\fB$\fP) followed by
anything other than a left curly brace (\fB{\fP) with a possible namespace is
interpreted as a literal dollar sign.
.sp
Recognized macros include:
.sp
\fB${sourceDir}\fP
.INDENT 0.0
.INDENT 3.5
Path to the project source directory (i.e. the same as
\fBCMAKE_SOURCE_DIR\fP).
.UNINDENT
.UNINDENT
.sp
\fB${sourceParentDir}\fP
.INDENT 0.0
.INDENT 3.5
Path to the project source directory\(aqs parent directory.
.UNINDENT
.UNINDENT
.sp
\fB${sourceDirName}\fP
.INDENT 0.0
.INDENT 3.5
The last filename component of \fB${sourceDir}\fP\&. For example, if
\fB${sourceDir}\fP is \fB/path/to/source\fP, this would be \fBsource\fP\&.
.UNINDENT
.UNINDENT
.sp
\fB${presetName}\fP
.INDENT 0.0
.INDENT 3.5
Name specified in the preset\(aqs \fBname\fP field.
.UNINDENT
.UNINDENT
.sp
\fB${generator}\fP
.INDENT 0.0
.INDENT 3.5
Generator specified in the preset\(aqs \fBgenerator\fP field. For build and
test presets, this will evaluate to the generator specified by
\fBconfigurePreset\fP\&.
.UNINDENT
.UNINDENT
.sp
\fB${hostSystemName}\fP
.INDENT 0.0
.INDENT 3.5
The name of the host operating system. Contains the same value as
\fBCMAKE_HOST_SYSTEM_NAME\fP\&. This is allowed in preset files
specifying version \fB3\fP or above.
.UNINDENT
.UNINDENT
.sp
\fB${fileDir}\fP
.INDENT 0.0
.INDENT 3.5
Path to the directory containing the preset file which contains the macro.
This is allowed in preset files specifying version \fB4\fP or above.
.UNINDENT
.UNINDENT
.sp
\fB${dollar}\fP
.INDENT 0.0
.INDENT 3.5
A literal dollar sign (\fB$\fP).
.UNINDENT
.UNINDENT
.sp
\fB$env{<variable\-name>}\fP
.INDENT 0.0
.INDENT 3.5
Environment variable with name \fB<variable\-name>\fP\&. The variable name may
not be an empty string. If the variable is defined in the \fBenvironment\fP
field, that value is used instead of the value from the parent environment.
If the environment variable is not defined, this evaluates as an empty
string.
.sp
Note that while Windows environment variable names are case\-insensitive,
variable names within a preset are still case\-sensitive. This may lead to
unexpected results when using inconsistent casing. For best results, keep
the casing of environment variable names consistent.
.UNINDENT
.UNINDENT
.sp
\fB$penv{<variable\-name>}\fP
.INDENT 0.0
.INDENT 3.5
Similar to \fB$env{<variable\-name>}\fP, except that the value only comes from
the parent environment, and never from the \fBenvironment\fP field. This
allows you to prepend or append values to existing environment variables.
For example, setting \fBPATH\fP to \fB/path/to/ninja/bin:$penv{PATH}\fP will
prepend \fB/path/to/ninja/bin\fP to the \fBPATH\fP environment variable. This
is needed because \fB$env{<variable\-name>}\fP does not allow circular
references.
.UNINDENT
.UNINDENT
.sp
\fB$vendor{<macro\-name>}\fP
.INDENT 0.0
.INDENT 3.5
An extension point for vendors to insert their own macros. CMake will not
be able to use presets which have a \fB$vendor{<macro\-name>}\fP macro, and
effectively ignores such presets. However, it will still be able to use
other presets from the same file.
.sp
CMake does not make any attempt to interpret \fB$vendor{<macro\-name>}\fP
macros. However, to avoid name collisions, IDE vendors should prefix
\fB<macro\-name>\fP with a very short (preferably <= 4 characters) vendor
identifier prefix, followed by a \fB\&.\fP, followed by the macro name. For
example, the Example IDE could have \fB$vendor{xide.ideInstallDir}\fP\&.
.UNINDENT
.UNINDENT
.SH SCHEMA
.sp
\fBThis file\fP provides a machine\-readable
JSON schema for the \fBCMakePresets.json\fP format.
.SH COPYRIGHT
2000-2022 Kitware, Inc. and Contributors
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