addon-tools-raub
Advanced tools
This is a set of helpers for simplification and standardization of addons and dependency packages.
npm i -s addon-tools-raub
'variables': {
'_rd' : '<!(node -e "console.log(require(\'addon-tools-raub\')._rd)")',
'_del' : '<!(node -e "console.log(require(\'addon-tools-raub\')._del)")',
},
'include_dirs': [
'<!(node -e "require(\'addon-tools-raub\').printNan()")',
'<!(node -e "console.log(require(\'addon-tools-raub\').include)")',
],
rm on
Unix systems and custom remover on Windows. [ 'OS=="linux"', { 'action' : [
'rm',
'<(module_root_dir)/build/Release/obj.target/addon/cpp/addon.o',
'<(module_root_dir)/build/Release/addon.node'
] } ],
[ 'OS=="mac"', { 'action' : [
'rm',
'<(module_root_dir)/build/Release/obj.target/addon/cpp/addon.o',
'<(module_root_dir)/build/Release/addon.node'
] } ],
[ 'OS=="win"', { 'action' : [
'<(_del) "<(module_root_dir)/build/Release/addon.*" && ' +
'<(_del) "<(module_root_dir)/build/Release/obj/addon/*.*"'
] } ],
If you design a module with binary dependencies for several platforms, Addon Tools would encourage you to abide by the following rules:
Your binary directories are:
The following piece of code in your index.js without changes. Method paths()
is described here.
module.exports = require('addon-tools-raub').paths(__dirname);
binding.gyp:{
'variables': {
'_rd' : '<!(node -e "console.log(require(\'addon-tools-raub\')._rd)")',
'rem' : '<!(node -e "console.log(require(\'.\').rem)")',
},
'targets': [
{
'target_name' : 'remove_extras',
'type' : 'none',
'actions' : [
{
'action_name' : 'Unnecessary binaries removed.',
'inputs' : ['<@(rem)'],
'outputs' : ['build'],
'conditions' : [
[ 'OS=="linux"', { 'action' : [ 'rm', '-rf', '<@(_inputs)' ] } ],
[ 'OS=="mac"' , { 'action' : [ 'rm', '-rf', '<@(_inputs)' ] } ],
[ 'OS=="win"' , { 'action' : [ '<(_rd)', '<@(_inputs)' ] } ],
],
}
],
},
]
}
If you always copy your compiled addon to the binary directory, it will be easy to
require() it without any hesitation. For copying, you can use the following snippet:
{
'target_name' : 'make_directory',
'type' : 'none',
'dependencies' : ['MY_ADDON'],
'actions' : [{
'action_name' : 'Directory created.',
'inputs' : [],
'outputs' : ['build'],
'conditions' : [
[ 'OS=="linux"', { 'action': ['mkdir', '-p', 'binary'] } ],
[ 'OS=="mac"', { 'action': ['mkdir', '-p', 'binary'] } ],
[ 'OS=="win"', { 'action': [
'<(_rd) "<(module_root_dir)/binary" && ' +
'md "<(module_root_dir)/binary"'
] } ],
],
}],
},
{
'target_name' : 'copy_binary',
'type' : 'none',
'dependencies' : ['make_directory'],
'actions' : [{
'action_name' : 'Module copied.',
'inputs' : [],
'outputs' : ['binary'],
'conditions' : [
[ 'OS=="linux"', { 'action' : [
'cp',
'<(module_root_dir)/build/Release/MY_ADDON.node',
'<(module_root_dir)/binary/MY_ADDON.node'
] } ],
[ 'OS=="mac"', { 'action' : [
'cp',
'<(module_root_dir)/build/Release/MY_ADDON.node',
'<(module_root_dir)/binary/MY_ADDON.node'
] } ],
[ 'OS=="win"', { 'action' : [
'copy "<(module_root_dir)/build/Release/MY_ADDON.node"' +
' "<(module_root_dir)/binary/MY_ADDON.node"'
] } ],
],
}],
},
Here MY_ADDON should be replaced by any name you like. Then require like
this:
module.exports = require('./binary/addon');
EXT_LIB is the name of an Addon Tools compliant binary dependency module.MY_ADDON is the name of this addon.cpp directory.{
'variables': {
'_del' : '<!(node -e "console.log(require(\'addon-tools-raub\')._del)")',
'_rd' : '<!(node -e "console.log(require(\'addon-tools-raub\')._rd)")',
'EXT_LIB_include' : '<!(node -e "console.log(require(\'node-deps-EXT_LIB-raub\').include)")',
'EXT_LIB_bin' : '<!(node -e "console.log(require(\'node-deps-EXT_LIB-raub\').bin)")',
},
'targets': [
{
'target_name': 'MY_ADDON',
'sources': [
'cpp/bindings.cpp',
'cpp/MY_ADDON.cpp',
],
'include_dirs': [
'<!(node -e "require(\'addon-tools-raub\').printNan()")',
'<!(node -e "console.log(require(\'addon-tools-raub\').include)")',
'<(EXT_LIB_include)',
'<(module_root_dir)/include',
],
'library_dirs': [ '<(EXT_LIB_bin)' ],
'conditions': [
[
'OS=="linux"',
{
'libraries': [
'-Wl,-rpath,<(EXT_LIB_bin)',
'<(EXT_LIB_bin)/libEXT_LIB.so',
],
}
],
[
'OS=="mac"',
{
'libraries': [
'-Wl,-rpath,<(EXT_LIB_bin)',
'<(EXT_LIB_bin)/EXT_LIB.dylib',
],
}
],
[
'OS=="win"',
{
'libraries': [ 'EXT_LIB.lib' ],
'defines' : [
'WIN32_LEAN_AND_MEAN',
'VC_EXTRALEAN'
],
'msvs_version' : '2013',
'msvs_settings' : {
'VCCLCompilerTool' : {
'AdditionalOptions' : [
'/O2','/Oy','/GL','/GF','/Gm-','/EHsc',
'/MT','/GS','/Gy','/GR-','/Gd',
]
},
'VCLinkerTool' : {
'AdditionalOptions' : ['/OPT:REF','/OPT:ICF','/LTCG']
},
},
}
],
],
},
{
'target_name' : 'make_directory',
'type' : 'none',
'dependencies' : ['MY_ADDON'],
'actions' : [{
'action_name' : 'Directory created.',
'inputs' : [],
'outputs' : ['build'],
'conditions' : [
[ 'OS=="linux"', { 'action': ['mkdir', '-p', 'binary'] } ],
[ 'OS=="mac"', { 'action': ['mkdir', '-p', 'binary'] } ],
[ 'OS=="win"', { 'action': [
'<(_rd) "<(module_root_dir)/binary" && ' +
'md "<(module_root_dir)/binary"'
] } ],
],
}],
},
{
'target_name' : 'copy_binary',
'type' : 'none',
'dependencies' : ['make_directory'],
'actions' : [{
'action_name' : 'Module copied.',
'inputs' : [],
'outputs' : ['binary'],
'conditions' : [
[ 'OS=="linux"', { 'action' : [
'cp',
'<(module_root_dir)/build/Release/MY_ADDON.node',
'<(module_root_dir)/binary/MY_ADDON.node'
] } ],
[ 'OS=="mac"', { 'action' : [
'cp',
'<(module_root_dir)/build/Release/MY_ADDON.node',
'<(module_root_dir)/binary/MY_ADDON.node'
] } ],
[ 'OS=="win"', { 'action' : [
'copy "<(module_root_dir)/build/Release/MY_ADDON.node"' +
' "<(module_root_dir)/binary/MY_ADDON.node"'
] } ],
],
}],
},
{
'target_name' : 'remove_extras',
'type' : 'none',
'dependencies' : ['copy_binary'],
'actions' : [{
'action_name' : 'Build intermediates removed.',
'inputs' : [],
'outputs' : ['cpp'],
'conditions' : [
[ 'OS=="linux"', { 'action' : [
'rm',
'<(module_root_dir)/build/Release/obj.target/MY_ADDON/cpp/MY_ADDON.o',
'<(module_root_dir)/build/Release/obj.target/MY_ADDON.node',
'<(module_root_dir)/build/Release/MY_ADDON.node'
] } ],
[ 'OS=="mac"', { 'action' : [
'rm',
'<(module_root_dir)/build/Release/obj.target/MY_ADDON/cpp/MY_ADDON.o',
'<(module_root_dir)/build/Release/MY_ADDON.node'
] } ],
[ 'OS=="win"', { 'action' : [
'<(_del) "<(module_root_dir)/build/Release/MY_ADDON.*" && ' +
'<(_del) "<(module_root_dir)/build/Release/obj/MY_ADDON/*.*"'
] } ],
],
}],
},
]
}
There is a C++ header file, addon-tools.hpp, shipped with this package. It
introduces several useful macros and utilities. Also it includes Nan automatically,
so that you can replace.
// #include <v8.h> // node.h includes it
// #include <node.h> // nan.h includes it
#include <nan.h>
with
#include <addon-tools.hpp>
In gyp, the include directory should be set for your addon to know where to get it. As it was mentioned above, this can be done automatically. Also an actual path to the directory is exported from the module and is accessible like this:
require('addon-tools-raub').include
In the file, currently there are following helpers:
NAN_HS - creates a HandleScope. Also, you do not need them within NAN_METHOD,
NAN_SETTER, and NAN_GETTER, as it is stated in
Nan doc.
So it is most likely to be used in native callbacks.void windowFocusCB(GLFWwindow *window, int focused) { NAN_HS;
...
}
...
glfwSetWindowFocusCallback(window, windowFocusCB);
These checks throw JS TypeError if not passed. Here T is always used as a typename
in error messages. C is
v8::Value
check method, like IsObject(). I is the index of argument as in info[I],
starting from 0.
N arguments passedI is undefined or nullI is approved by C check.I is approved by C check or empty.value is approved by C check.Two types of argument retrieval are supported: REQ_ and LET_. The difference
is that LET_ allows the argument to be empty, using some zero-default in this case.
I is the index of argument as in info[I],
starting from 0. VAR is the name of the Local<Value> variable to be created.
NAN_METHOD(testScene) {
REQ_UINT32_ARG(0, width);
REQ_UINT32_ARG(1, height);
LET_FLOAT_ARG(2, z);
// Variables created: unsigned int width, height; float z;
...
Set-helpers for string and numeric keys. String keys are converted to JS strings automatically.
Simplified accessor assignment, adds accessors of NAME for OBJ. Read accessor is
assumed to have the name NAME+'Getter' and write accessor is NAME+'Setter'.
void MyClass::init(Handle<Object> target) {
...
Local<ObjectTemplate> proto = ctor->PrototypeTemplate();
ACCESSOR_RW(proto, message);
...
}
NAN_GETTER(MyClass::messageGetter) { ...
NAN_SETTER(MyClass::messageSetter) { ...
Useful addition to NAN_SETTER macro.
NAN_SETTER(MyClass::messageSetter) { SETTER_UTF8_ARG;
// Variable created: Nan::Utf8String v;
...
T *getArrayData(value, num = NULL) - extracts TypedArray data of any type from
the given JS value. Does not accept Array, checked with IsArrayBufferView().
Returns NULL for empty JS values. For unacceptable values throws TypeError.
BYTE *getImageData(value) - if value is a TypedArray, then the result of
getArrayData(value) is returned. Otherwise if value has 'data' property, it's
content is then returned as node::Buffer. Returns NULL for empty JS values.
For unacceptable values throws TypeError.
Exports:
paths(dir) - function. Returns a set of platform dependent paths depending on
input dir.
bin - platform binary path.rem - a space-separated list of binary paths to be cleaned on this platform.include - include directory for this dir.root - where 'addon-tools-raub' module is situated.include - 'addon-tools-raub' own 'include' directory._rd - the location of '_rd.bat' file._del - the location of '_del.bat' file.Windows-only utilities. Because in gyp any / on Windows is converted to \, it is
impossible to put correct commands for file/directory removal. Those need such
parameters as /Q, but gyp makes them \Q which is inappropriate. So these files
simply contain their respective commands with all necessary parameters, avoiding any
conflict with gyp.
...
[ 'OS=="mac"', { 'action' : [
'rm',
'<(module_root_dir)/build/Release/obj.target/addon/cpp/bindings.o',
'<(module_root_dir)/build/Release/addon.node'
] } ],
[ 'OS=="win"', { 'action' : [
'<(_del) "<(module_root_dir)/build/Release/addon.*" && ' +
'<(_del) "<(module_root_dir)/build/Release/obj/addon/*.*"'
] } ],
FAQs
Helpers for Node.js addons and dependency packages
We found that addon-tools-raub demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 0 open source maintainers collaborating on the project.
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