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@TooTallNate
TooTallNate committed Jan 23, 2019
1 parent 68dae57 commit 98350ce
Showing 1 changed file with 133 additions and 102 deletions.
235 changes: 133 additions & 102 deletions bindings.js
View file
Original file line number Diff line number Diff line change
@@ -1,61 +1,75 @@

/**
* Module dependencies.
*/

var fs = require('fs')
, path = require('path')
, fileURLToPath = require('file-uri-to-path')
, join = path.join
, dirname = path.dirname
, exists = ((fs.accessSync && function (path) { try { fs.accessSync(path); } catch (e) { return false; } return true; })
|| fs.existsSync || path.existsSync)
, defaults = {
arrow: process.env.NODE_BINDINGS_ARROW || ' → '
, compiled: process.env.NODE_BINDINGS_COMPILED_DIR || 'compiled'
, platform: process.platform
, arch: process.arch
, nodePreGyp: 'node-v' + process.versions.modules + '-' + process.platform + '-' + process.arch
, version: process.versions.node
, bindings: 'bindings.node'
, try: [
// node-gyp's linked version in the "build" dir
[ 'module_root', 'build', 'bindings' ]
// node-waf and gyp_addon (a.k.a node-gyp)
, [ 'module_root', 'build', 'Debug', 'bindings' ]
, [ 'module_root', 'build', 'Release', 'bindings' ]
// Debug files, for development (legacy behavior, remove for node v0.9)
, [ 'module_root', 'out', 'Debug', 'bindings' ]
, [ 'module_root', 'Debug', 'bindings' ]
// Release files, but manually compiled (legacy behavior, remove for node v0.9)
, [ 'module_root', 'out', 'Release', 'bindings' ]
, [ 'module_root', 'Release', 'bindings' ]
// Legacy from node-waf, node <= 0.4.x
, [ 'module_root', 'build', 'default', 'bindings' ]
// Production "Release" buildtype binary (meh...)
, [ 'module_root', 'compiled', 'version', 'platform', 'arch', 'bindings' ]
// node-qbs builds
, [ 'module_root', 'addon-build', 'release', 'install-root', 'bindings' ]
, [ 'module_root', 'addon-build', 'debug', 'install-root', 'bindings' ]
, [ 'module_root', 'addon-build', 'default', 'install-root', 'bindings' ]
// node-pre-gyp path ./lib/binding/{node_abi}-{platform}-{arch}
, [ 'module_root', 'lib', 'binding', 'nodePreGyp', 'bindings' ]
]
}
var fs = require('fs'),
path = require('path'),
fileURLToPath = require('file-uri-to-path'),
join = path.join,
dirname = path.dirname,
exists =
(fs.accessSync &&
function(path) {
try {
fs.accessSync(path);
} catch (e) {
return false;
}
return true;
}) ||
fs.existsSync ||
path.existsSync,
defaults = {
arrow: process.env.NODE_BINDINGS_ARROW || ' → ',
compiled: process.env.NODE_BINDINGS_COMPILED_DIR || 'compiled',
platform: process.platform,
arch: process.arch,
nodePreGyp:
'node-v' +
process.versions.modules +
'-' +
process.platform +
'-' +
process.arch,
version: process.versions.node,
bindings: 'bindings.node',
try: [
// node-gyp's linked version in the "build" dir
['module_root', 'build', 'bindings'],
// node-waf and gyp_addon (a.k.a node-gyp)
['module_root', 'build', 'Debug', 'bindings'],
['module_root', 'build', 'Release', 'bindings'],
// Debug files, for development (legacy behavior, remove for node v0.9)
['module_root', 'out', 'Debug', 'bindings'],
['module_root', 'Debug', 'bindings'],
// Release files, but manually compiled (legacy behavior, remove for node v0.9)
['module_root', 'out', 'Release', 'bindings'],
['module_root', 'Release', 'bindings'],
// Legacy from node-waf, node <= 0.4.x
['module_root', 'build', 'default', 'bindings'],
// Production "Release" buildtype binary (meh...)
['module_root', 'compiled', 'version', 'platform', 'arch', 'bindings'],
// node-qbs builds
['module_root', 'addon-build', 'release', 'install-root', 'bindings'],
['module_root', 'addon-build', 'debug', 'install-root', 'bindings'],
['module_root', 'addon-build', 'default', 'install-root', 'bindings'],
// node-pre-gyp path ./lib/binding/{node_abi}-{platform}-{arch}
['module_root', 'lib', 'binding', 'nodePreGyp', 'bindings']
]
};

/**
* The main `bindings()` function loads the compiled bindings for a given module.
* It uses V8's Error API to determine the parent filename that this function is
* being invoked from, which is then used to find the root directory.
*/

function bindings (opts) {

function bindings(opts) {
// Argument surgery
if (typeof opts == 'string') {
opts = { bindings: opts }
opts = { bindings: opts };
} else if (!opts) {
opts = {}
opts = {};
}

// maps `defaults` onto `opts` object
Expand All @@ -65,95 +79,106 @@ function bindings (opts) {

// Get the module root
if (!opts.module_root) {
opts.module_root = exports.getRoot(exports.getFileName())
opts.module_root = exports.getRoot(exports.getFileName());
}

// Ensure the given bindings name ends with .node
if (path.extname(opts.bindings) != '.node') {
opts.bindings += '.node'
opts.bindings += '.node';
}

// https://github.com/webpack/webpack/issues/4175#issuecomment-342931035
var requireFunc = typeof __webpack_require__ === 'function' ? __non_webpack_require__ : require

var tries = []
, i = 0
, l = opts.try.length
, n
, b
, err

for (; i<l; i++) {
n = join.apply(null, opts.try[i].map(function (p) {
return opts[p] || p
}))
tries.push(n)
var requireFunc =
typeof __webpack_require__ === 'function'
? __non_webpack_require__
: require;

var tries = [],
i = 0,
l = opts.try.length,
n,
b,
err;

for (; i < l; i++) {
n = join.apply(
null,
opts.try[i].map(function(p) {
return opts[p] || p;
})
);
tries.push(n);
try {
b = opts.path ? requireFunc.resolve(n) : requireFunc(n)
b = opts.path ? requireFunc.resolve(n) : requireFunc(n);
if (!opts.path) {
b.path = n
b.path = n;
}
return b
return b;
} catch (e) {
if (!/not find/i.test(e.message)) {
throw e
throw e;
}
}
}

err = new Error('Could not locate the bindings file. Tried:\n'
+ tries.map(function (a) { return opts.arrow + a }).join('\n'))
err.tries = tries
throw err
err = new Error(
'Could not locate the bindings file. Tried:\n' +
tries
.map(function(a) {
return opts.arrow + a;
})
.join('\n')
);
err.tries = tries;
throw err;
}
module.exports = exports = bindings

module.exports = exports = bindings;

/**
* Gets the filename of the JavaScript file that invokes this function.
* Used to help find the root directory of a module.
* Optionally accepts an filename argument to skip when searching for the invoking filename
*/

exports.getFileName = function getFileName (calling_file) {
var origPST = Error.prepareStackTrace
, origSTL = Error.stackTraceLimit
, dummy = {}
, fileName
exports.getFileName = function getFileName(calling_file) {
var origPST = Error.prepareStackTrace,
origSTL = Error.stackTraceLimit,
dummy = {},
fileName;

Error.stackTraceLimit = 10
Error.stackTraceLimit = 10;

Error.prepareStackTrace = function (e, st) {
for (var i=0, l=st.length; i<l; i++) {
fileName = st[i].getFileName()
Error.prepareStackTrace = function(e, st) {
for (var i = 0, l = st.length; i < l; i++) {
fileName = st[i].getFileName();
if (fileName !== __filename) {
if (calling_file) {
if (fileName !== calling_file) {
return
}
if (fileName !== calling_file) {
return;
}
} else {
return
return;
}
}
}
}
};

// run the 'prepareStackTrace' function above
Error.captureStackTrace(dummy)
dummy.stack
Error.captureStackTrace(dummy);
dummy.stack;

// cleanup
Error.prepareStackTrace = origPST
Error.stackTraceLimit = origSTL
Error.prepareStackTrace = origPST;
Error.stackTraceLimit = origSTL;

// handle filename that starts with "file://"
var fileSchema = "file://";
var fileSchema = 'file://';
if (fileName.indexOf(fileSchema) === 0) {
fileName = fileURLToPath(fileName);
}

return fileName
}
return fileName;
};

/**
* Gets the root directory of a module, given an arbitrary filename
Expand All @@ -164,25 +189,31 @@ exports.getFileName = function getFileName (calling_file) {
* Out: /home/nate/node-native-module
*/

exports.getRoot = function getRoot (file) {
var dir = dirname(file)
, prev
exports.getRoot = function getRoot(file) {
var dir = dirname(file),
prev;
while (true) {
if (dir === '.') {
// Avoids an infinite loop in rare cases, like the REPL
dir = process.cwd()
dir = process.cwd();
}
if (exists(join(dir, 'package.json')) || exists(join(dir, 'node_modules'))) {
if (
exists(join(dir, 'package.json')) ||
exists(join(dir, 'node_modules'))
) {
// Found the 'package.json' file or 'node_modules' dir; we're done
return dir
return dir;
}
if (prev === dir) {
// Got to the top
throw new Error('Could not find module root given file: "' + file
+ '". Do you have a `package.json` file? ')
throw new Error(
'Could not find module root given file: "' +
file +
'". Do you have a `package.json` file? '
);
}
// Try the parent dir next
prev = dir
dir = join(dir, '..')
prev = dir;
dir = join(dir, '..');
}
}
};

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