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CMake: Update FindNpm module and usage

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FindNpm REQUIRE functionality was not provided by FindNpm.cmake.
UpdatedUpdated FindNpm to extract version, global node_modules
directory, and to fail if REQUIRE was set and npm was not found.

Signed-off-by: Noel Eck <noel.eck@intel.com>
This commit is contained in:
Noel Eck 2018-02-06 14:11:28 -08:00
parent 7d83e8c569
commit 6f72c52a44
2 changed files with 68 additions and 15 deletions
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5
CMakeLists.txt
View File

@ -151,11 +151,6 @@ if (BUILDSWIGNODE)
find_package (Node REQUIRED)
if (BUILDTESTS)
find_package (Npm REQUIRED)
if(NPM_EXECUTABLE)
message(STATUS "NPM Executable found at: ${NPM_EXECUTABLE}")
else()
message(FATAL_ERROR "Please install NPM first, you can't run tests without it")
endif()
endif (BUILDTESTS)
endif (BUILDSWIGNODE)

78
cmake/modules/FindNpm.cmake
View File

@ -1,13 +1,71 @@
# Finding and pointing a variable to the npm executable if found
# Only works on Linux systems as of now
# FindNpm
# --------
#
# Find npm
#
# This module finds an installed npm. It sets the following variables:
#
# NPM_FOUND - Set to true if npm is found
# NPM_DIR - The directory where npm is installed
# NPM_GLOBAL_NODE_MODULE_DIR - The global node_modules 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
)
find_program(NPM_EXECUTABLE NAMES npm HINTS /usr)
if(NPM_EXECUTABLE)
message(STATUS "NPM Executable found at ${NPM_EXECUTABLE}")
# If npm was found, fill in the rest
if (NPM_EXECUTABLE)
# Set the global node_modules location
execute_process(COMMAND ${NPM_EXECUTABLE} root -g
OUTPUT_VARIABLE NPM_GLOBAL_NODE_MODULE_DIR
ERROR_VARIABLE NPM_root_g_error
RESULT_VARIABLE NPM_root_g_result_code)
# Remove and newlines
string (STRIP ${NPM_GLOBAL_NODE_MODULE_DIR} NPM_GLOBAL_NODE_MODULE_DIR)
if(NPM_root_g_result_code)
if(NPM_FIND_REQUIRED)
message(SEND_ERROR "Command \"${NPM_EXECUTABLE} root -g\" failed with output:\n${NPM_root_g_error}")
else ()
message(STATUS "Command \"${NPM_EXECUTABLE} root -g\" failed with output:\n${NPM_root_g_error}")
endif ()
endif()
unset(NPM_root_g_error)
unset(NPM_root_g_result_code)
# Set the NPM dir
if (EXISTS "${NPM_GLOBAL_NODE_MODULE_DIR}/npm")
set(NPM_DIR "${NPM_GLOBAL_NODE_MODULE_DIR}/npm")
endif()
# Set 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 and newlines
string (STRIP ${NPM_VERSION} NPM_VERSION)
set (NPM_FOUND TRUE)
else()
message(ERROR "Unable to find NPM installation, please install NPM")
endif()
# Fail on REQUIRED
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_DIR
VERSION_VAR NPM_VERSION )
mark_as_advanced(NPM_DIR NPM_GLOBAL_NODE_MODULE_DIR NPM_EXECUTABLE NPM_VERSION)