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# FindNPM
# --------
#
# This module finds an installed npm.
# It sets the following variables:
#
# NPM_FOUND - True when NPM is found
# NPM_GLOBAL_PREFIX_DIR - The global prefix directory
# NPM_EXECUTABLE - The path to the npm executable
# NPM_VERSION - The version number of the npm executable
find_program(NPM_EXECUTABLE NAMES npm HINTS /usr)
if (NPM_EXECUTABLE)
# Get the global npm prefix
execute_process(COMMAND ${NPM_EXECUTABLE} prefix -g
OUTPUT_VARIABLE NPM_GLOBAL_PREFIX_DIR
ERROR_VARIABLE NPM_prefix_g_error
RESULT_VARIABLE NPM_prefix_g_result_code
)
# Remove spaces and newlines
string (STRIP ${NPM_GLOBAL_PREFIX_DIR} NPM_GLOBAL_PREFIX_DIR)
if (NPM_prefix_g_result_code)
if(NPM_FIND_REQUIRED)
message(SEND_ERROR "Command \"${NPM_EXECUTABLE} prefix -g\" failed with output:\n${NPM_prefix_g_error}")
else()
message(STATUS "Command \"${NPM_EXECUTABLE} prefix -g\" failed with output:\n${NPM_prefix_g_error}")
endif()
endif()
unset(NPM_prefix_g_error)
unset(NPM_prefix_g_result_code)
# Get the VERSION
execute_process(COMMAND ${NPM_EXECUTABLE} -v
OUTPUT_VARIABLE NPM_VERSION
ERROR_VARIABLE NPM_version_error
RESULT_VARIABLE NPM_version_result_code
)
if(NPM_version_result_code)
if(NPM_FIND_REQUIRED)
message(SEND_ERROR "Command \"${NPM_EXECUTABLE} -v\" failed with output:\n${NPM_version_error}")
else()
message(STATUS "Command \"${NPM_EXECUTABLE} -v\" failed with output:\n${NPM_version_error}")
endif()
endif()
unset(NPM_version_error)
unset(NPM_version_result_code)
# Remove spaces and newlines
string (STRIP ${NPM_VERSION} NPM_VERSION)
else()
if (NPM_FIND_REQUIRED)
message(SEND_ERROR "Failed to find npm executable")
endif()
endif()
find_package_handle_standard_args(NPM
REQUIRED_VARS NPM_EXECUTABLE NPM_GLOBAL_PREFIX_DIR
VERSION_VAR NPM_VERSION
)
mark_as_advanced(NPM_GLOBAL_PREFIX_DIR NPM_EXECUTABLE NPM_VERSION)
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