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# Copyright The OpenTelemetry Authors
# SPDX-License-Identifier: Apache-2.0
#.rst:
# opentelemetry-cpp-config.cmake
# --------
# Finding opentelemetry-cpp in CMake projects
# ========================================
#
# - find_package(opentelemetry-cpp CONFIG REQUIRED) to import all installed targets and dependencies
# - find_package(opentelemetry-cpp CONFIG COMPONENTS ...) to import specific components' targets and dependencies
#
# Example usage
# -------------------
#
# 1. **No Components Specified**
#
# When no components are provided, all components and their targets are imported.
#
# .. code-block:: cmake
#
# find_package(opentelemetry-cpp CONFIG REQUIRED)
#
#
# 2. **Components Specified**
#
# When a component is specified, its third-party dependencies are found;
# then, targets from that component, along with the components on which it depends, are imported.
#
# .. code-block:: cmake
#
# find_package(opentelemetry-cpp CONFIG REQUIRED COMPONENTS exporters_otlp_grpc)
#
#
#.. note::
# To troubleshoot issues with ``find_package(opentelemetry-cpp CONFIG REQUIRED)``, run CMake with debug logging enabled:
#
# .. code-block:: bash
#
# cmake --log-level=DEBUG -S <source_dir> -B <build_dir>
#
# To get more verbose output from CMake’s package search, run CMake with the following flag:
#
# .. code-block:: bash
#
# cmake -DCMAKE_FIND_DEBUG_MODE=ON -S <source_dir> -B <build_dir>
#
#
# CMake Variables Defined
# --------------------
#
# This module defines the following variables:
#
# ::
#
# OPENTELEMETRY_CPP_INCLUDE_DIRS - Include directories of opentelemetry-cpp.
# OPENTELEMETRY_CPP_LIBRARY_DIRS - Link directories of opentelemetry-cpp.
# OPENTELEMETRY_CPP_LIBRARIES - List of libraries when using opentelemetry-cpp.
# OPENTELEMETRY_CPP_FOUND - True if opentelemetry-cpp found.
# OPENTELEMETRY_ABI_VERSION_NO - ABI version of opentelemetry-cpp.
# OPENTELEMETRY_VERSION - Version of opentelemetry-cpp.
# OPENTELEMETRY_CPP_COMPONENTS_INSTALLED - List of components installed.
# opentelemetry-cpp_FOUND - True if opentelemetry-cpp found.
# opentelemetry-cpp_<component>_FOUND - True if the requested component is found.
# ::
#
#
# CMake Components and Targets Supported
# --------------------
# opentelemetry-cpp supports the following components and targets. This install may include a subset.
#
# COMPONENTS
# api
# sdk
# ext_common
# ext_http_curl
# ext_dll
# exporters_in_memory
# exporters_ostream
# exporters_otlp_common
# exporters_otlp_file
# exporters_otlp_grpc
# exporters_otlp_http
# exporters_prometheus
# exporters_elasticsearch
# exporters_etw
# exporters_zipkin
# shims_opentracing
#
# ::
#
# TARGETS
# opentelemetry-cpp::api - Imported target of COMPONENT api
# opentelemetry-cpp::sdk - Imported target of COMPONENT sdk
# opentelemetry-cpp::version - Imported target of COMPONENT sdk
# opentelemetry-cpp::common - Imported target of COMPONENT sdk
# opentelemetry-cpp::resources - Imported target of COMPONENT sdk
# opentelemetry-cpp::trace - Imported target of COMPONENT sdk
# opentelemetry-cpp::metrics - Imported target of COMPONENT sdk
# opentelemetry-cpp::logs - Imported target of COMPONENT sdk
# opentelemetry-cpp::ext - Imported target of COMPONENT ext_common
# opentelemetry-cpp::http_client_curl - Imported target of COMPONENT ext_http_curl
# opentelemetry-cpp::opentelemetry_cpp - Imported target of COMPONENT ext_dll
# opentelemetry-cpp::in_memory_span_exporter - Imported target of COMPONENT exporters_in_memory
# opentelemetry-cpp::in_memory_metric_exporter - Imported target of COMPONENT exporters_in_memory
# opentelemetry-cpp::ostream_log_record_exporter - Imported target of COMPONENT exporters_ostream
# opentelemetry-cpp::ostream_metrics_exporter - Imported target of COMPONENT exporters_ostream
# opentelemetry-cpp::ostream_span_exporter - Imported target of COMPONENT exporters_ostream
# opentelemetry-cpp::proto - Imported target of COMPONENT exporters_otlp_common
# opentelemetry-cpp::otlp_recordable - Imported target of COMPONENT exporters_otlp_common
# opentelemetry-cpp::otlp_file_client - Imported target of COMPONENT exporters_otlp_file
# opentelemetry-cpp::otlp_file_exporter - Imported target of COMPONENT exporters_otlp_file
# opentelemetry-cpp::otlp_file_log_record_exporter - Imported target of COMPONENT exporters_otlp_file
# opentelemetry-cpp::otlp_file_metric_exporter - Imported target of COMPONENT exporters_otlp_file
# opentelemetry-cpp::proto_grpc - Imported target of COMPONENT exporters_otlp_grpc
# opentelemetry-cpp::otlp_grpc_client - Imported target of COMPONENT exporters_otlp_grpc
# opentelemetry-cpp::otlp_grpc_exporter - Imported target of COMPONENT exporters_otlp_grpc
# opentelemetry-cpp::otlp_grpc_log_record_exporter - Imported target of COMPONENT exporters_otlp_grpc
# opentelemetry-cpp::otlp_grpc_metrics_exporter - Imported target of COMPONENT exporters_otlp_grpc
# opentelemetry-cpp::otlp_http_client - Imported target of COMPONENT exporters_otlp_http
# opentelemetry-cpp::otlp_http_exporter - Imported target of COMPONENT exporters_otlp_http
# opentelemetry-cpp::otlp_http_log_record_exporter - Imported target of COMPONENT exporters_otlp_http
# opentelemetry-cpp::otlp_http_metric_exporter - Imported target of COMPONENT exporters_otlp_http
# opentelemetry-cpp::prometheus_exporter - Imported target of COMPONENT exporters_prometheus
# opentelemetry-cpp::elasticsearch_log_record_exporter - Imported target of COMPONENT exporters_elasticsearch
# opentelemetry-cpp::etw_exporter - Imported target of COMPONENT exporters_etw
# opentelemetry-cpp::zipkin_trace_exporter - Imported target of COMPONENT exporters_zipkin
# opentelemetry-cpp::opentracing_shim - Imported target of COMPONENT shims_opentracing
#
# Additional Files Used in Component to Component and Third-Party Dependency Resolution
# --------------------------------------------------------
#
# - **thirdparty-dependency-definitions.cmake**
# This file lists the third-party dependencies supported by opentelemetry-cpp and components that may require them.
# Dependencies are found in the order defined in this file when find_package(opentelemetry-cpp …) is invoked.
#
# **Found using CMake CONFIG search mode:**
#
# - **absl**
# - **nlohmann_json**
# - **Protobuf**
# - **gRPC**
# - **prometheus-cpp**
# - **OpenTracing**
#
# **Found using the CMake MODULE search mode:**
#
# - **Threads**
# - **ZLIB**
# - **CURL**
#
# - **component-definitions.cmake**
# This file defines the available opentelemetry-cpp components, the targets associated with each
# component, and the inter-component dependencies.
#
# =============================================================================
# Copyright The OpenTelemetry Authors
# SPDX-License-Identifier: Apache-2.0
# =============================================================================
set(OPENTELEMETRY_ABI_VERSION_NO
"@OPENTELEMETRY_ABI_VERSION_NO@"
CACHE STRING "opentelemetry-cpp ABI version" FORCE)
set(OPENTELEMETRY_VERSION
"@OPENTELEMETRY_VERSION@"
CACHE STRING "opentelemetry-cpp version" FORCE)
@PACKAGE_INIT@
# Include the opentelemetry-cpp file that includes component defintions, thirdparty definitons and functions to support finding this package and dependencies.
include("${CMAKE_CURRENT_LIST_DIR}/find-package-support-functions.cmake")
set(_INSTALLED_COMPONENTS "")
get_installed_components(_INSTALLED_COMPONENTS)
set(OPENTELEMETRY_CPP_COMPONENTS_INSTALLED ${_INSTALLED_COMPONENTS} CACHE STRING "opentelemetry-cpp components installed" FORCE)
set(_REQUESTED_COMPONENTS "")
get_requested_components(_INSTALLED_COMPONENTS _REQUESTED_COMPONENTS)
find_required_dependencies(_REQUESTED_COMPONENTS)
set_and_check(OPENTELEMETRY_CPP_INCLUDE_DIRS "@PACKAGE_INCLUDE_INSTALL_DIR@")
set_and_check(OPENTELEMETRY_CPP_LIBRARY_DIRS "@PACKAGE_CMAKE_INSTALL_LIBDIR@")
# include the target files selected and set the component found flag
foreach(_COMPONENT IN LISTS _REQUESTED_COMPONENTS)
include("${CMAKE_CURRENT_LIST_DIR}/@PROJECT_NAME@-${_COMPONENT}-target.cmake")
set(${CMAKE_FIND_PACKAGE_NAME}_${_COMPONENT}_FOUND TRUE
CACHE BOOL "whether ${CMAKE_FIND_PACKAGE_NAME} component ${_COMPONENT} is found" FORCE)
endforeach()
# get installed and requested targets
set(_OPENTELEMETRY_CPP_TARGETS "")
get_targets(_REQUESTED_COMPONENTS _OPENTELEMETRY_CPP_TARGETS)
check_targets_imported(_OPENTELEMETRY_CPP_TARGETS)
# Set OPENTELEMETRY_CPP_* variables
set(OPENTELEMETRY_CPP_LIBRARIES)
set(DLL_TARGET "opentelemetry-cpp::opentelemetry_cpp")
foreach(_TARGET IN LISTS _OPENTELEMETRY_CPP_TARGETS)
if(TARGET "${_TARGET}" AND NOT "${_TARGET}" STREQUAL "${DLL_TARGET}")
list(APPEND OPENTELEMETRY_CPP_LIBRARIES "${_TARGET}")
endif()
endforeach()
# handle the QUIETLY and REQUIRED arguments and set opentelemetry-cpp_FOUND to
# TRUE if all variables listed contain valid results, e.g. valid file paths.
include("FindPackageHandleStandardArgs")
set(${CMAKE_FIND_PACKAGE_NAME}_CONFIG ${CMAKE_CURRENT_LIST_FILE})
find_package_handle_standard_args(
${CMAKE_FIND_PACKAGE_NAME}
CONFIG_MODE
REQUIRED_VARS OPENTELEMETRY_CPP_INCLUDE_DIRS OPENTELEMETRY_CPP_LIBRARIES)
if(${CMAKE_FIND_PACKAGE_NAME}_FOUND)
set(OPENTELEMETRY_CPP_FOUND
${${CMAKE_FIND_PACKAGE_NAME}_FOUND}
CACHE BOOL "whether opentelemetry-cpp is found" FORCE)
else()
unset(OPENTELEMETRY_CPP_FOUND)
unset(OPENTELEMETRY_CPP_FOUND CACHE)
endif()
check_required_components(${CMAKE_FIND_PACKAGE_NAME})
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