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@rektide
rektide committed Jun 21, 2012
1 parent a964396 commit c03c832
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Showing 4 changed files with 284 additions and 284 deletions.
184 changes: 92 additions & 92 deletions index.js
View file
Expand Up @@ -3,103 +3,103 @@ var path = require('path');

// taken from `ls -1 lib` in node 0.6.11
var core = exports.core = [
'assert', 'buffer_ieee754', 'buffer', 'child_process', 'cluster', 'console',
'constants', 'crypto', '_debugger', 'dgram', 'dns', 'events', 'freelist',
'fs', 'http', 'https', '_linklist', 'module', 'net', 'os', 'path',
'punycode', 'querystring', 'readline', 'repl', 'stream', 'string_decoder',
'sys', 'timers', 'tls', 'tty', 'url', 'util', 'vm', 'zlib'
'assert', 'buffer_ieee754', 'buffer', 'child_process', 'cluster', 'console',
'constants', 'crypto', '_debugger', 'dgram', 'dns', 'events', 'freelist',
'fs', 'http', 'https', '_linklist', 'module', 'net', 'os', 'path',
'punycode', 'querystring', 'readline', 'repl', 'stream', 'string_decoder',
'sys', 'timers', 'tls', 'tty', 'url', 'util', 'vm', 'zlib'
].reduce(function (acc, x) { acc[x] = true; return acc }, {});

exports.isCore = function (x) { return core[x] };

exports.sync = function (x, opts) {
if (core[x]) return x;
if (!opts) opts = {};
var isFile = opts.isFile || function (file) {
return path.existsSync(file) && fs.statSync(file).isFile()
};
var readFileSync = opts.readFileSync || fs.readFileSync;
var extensions = opts.extensions || [ '.js' ];
var y = opts.basedir
|| path.dirname(require.cache[__filename].parent.filename)
;
if (core[x]) return x;
if (!opts) opts = {};
var isFile = opts.isFile || function (file) {
return path.existsSync(file) && fs.statSync(file).isFile()
};
var readFileSync = opts.readFileSync || fs.readFileSync;
var extensions = opts.extensions || [ '.js' ];
var y = opts.basedir
|| path.dirname(require.cache[__filename].parent.filename)
;

opts.paths = opts.paths || [];
opts.paths = opts.paths || [];

if (x.match(/^(?:\.\.?\/|\/|([A-Za-z]:)?\\)/)) {
var m = loadAsFileSync(path.resolve(y, x))
|| loadAsDirectorySync(path.resolve(y, x));
if (m) return m;
}
var n = loadNodeModulesSync(x, y);
if (n) return n;
throw new Error("Cannot find module '" + x + "'");
function loadAsFileSync (x) {
if (isFile(x)) {
return x;
}
for (var i = 0; i < extensions.length; i++) {
var file = x + extensions[i];
if (isFile(file)) {
return file;
}
}
}
function loadAsDirectorySync (x) {
var pkgfile = path.join(x, '/package.json');
if (isFile(pkgfile)) {
var body = readFileSync(pkgfile, 'utf8');
try {
var pkg = JSON.parse(body);
if (opts.packageFilter) {
pkg = opts.packageFilter(pkg);
}
if (pkg.main) {
var m = loadAsFileSync(path.resolve(x, pkg.main));
if (m) return m;
}
}
catch (err) {}
}
return loadAsFileSync(path.join( x, '/index'));
}
function loadNodeModulesSync (x, start) {
var dirs = nodeModulesPathsSync(start);
for (var i = 0; i < dirs.length; i++) {
var dir = dirs[i];
var m = loadAsFileSync(path.join( dir, '/', x));
if (m) return m;
var n = loadAsDirectorySync(path.join( dir, '/', x ));
if (n) return n;
}
}
function nodeModulesPathsSync (start) {
var splitRe = process.platform === 'win32' ? /[\/\\]/ : /\/+/;
var parts = start.split(splitRe);
var dirs = [];
for (var i = parts.length - 1; i >= 0; i--) {
if (parts[i] === 'node_modules') continue;
var dir = path.join(
path.join.apply(path, parts.slice(0, i + 1)),
'node_modules'
);
if (!parts[0].match(/([A-Za-z]:)/)) {
dir = '/' + dir;
}
dirs.push(dir);
}
return opts.paths.concat(dirs);
}
if (x.match(/^(?:\.\.?\/|\/|([A-Za-z]:)?\\)/)) {
var m = loadAsFileSync(path.resolve(y, x))
|| loadAsDirectorySync(path.resolve(y, x));
if (m) return m;
}
var n = loadNodeModulesSync(x, y);
if (n) return n;
throw new Error("Cannot find module '" + x + "'");
function loadAsFileSync (x) {
if (isFile(x)) {
return x;
}
for (var i = 0; i < extensions.length; i++) {
var file = x + extensions[i];
if (isFile(file)) {
return file;
}
}
}
function loadAsDirectorySync (x) {
var pkgfile = path.join(x, '/package.json');
if (isFile(pkgfile)) {
var body = readFileSync(pkgfile, 'utf8');
try {
var pkg = JSON.parse(body);
if (opts.packageFilter) {
pkg = opts.packageFilter(pkg);
}
if (pkg.main) {
var m = loadAsFileSync(path.resolve(x, pkg.main));
if (m) return m;
}
}
catch (err) {}
}
return loadAsFileSync(path.join( x, '/index'));
}
function loadNodeModulesSync (x, start) {
var dirs = nodeModulesPathsSync(start);
for (var i = 0; i < dirs.length; i++) {
var dir = dirs[i];
var m = loadAsFileSync(path.join( dir, '/', x));
if (m) return m;
var n = loadAsDirectorySync(path.join( dir, '/', x ));
if (n) return n;
}
}
function nodeModulesPathsSync (start) {
var splitRe = process.platform === 'win32' ? /[\/\\]/ : /\/+/;
var parts = start.split(splitRe);
var dirs = [];
for (var i = parts.length - 1; i >= 0; i--) {
if (parts[i] === 'node_modules') continue;
var dir = path.join(
path.join.apply(path, parts.slice(0, i + 1)),
'node_modules'
);
if (!parts[0].match(/([A-Za-z]:)/)) {
dir = '/' + dir;
}
dirs.push(dir);
}
return opts.paths.concat(dirs);
}
};
14 changes: 7 additions & 7 deletions test/core.js
View file
Expand Up @@ -2,11 +2,11 @@ var test = require('tap').test;
var resolve = require('../');

test('core modules', function (t) {
t.ok(resolve.isCore('fs'));
t.ok(resolve.isCore('net'));
t.ok(resolve.isCore('http'));
t.ok(!resolve.isCore('seq'));
t.ok(!resolve.isCore('../'));
t.end();
t.ok(resolve.isCore('fs'));
t.ok(resolve.isCore('net'));
t.ok(resolve.isCore('http'));
t.ok(!resolve.isCore('seq'));
t.ok(!resolve.isCore('../'));
t.end();
});
112 changes: 56 additions & 56 deletions test/mock.js
View file
Expand Up @@ -2,63 +2,63 @@ var test = require('tap').test;
var resolve = require('../');

test('mock', function (t) {
t.plan(3);
var files = {
'/foo/bar/baz.js' : 'beep'
};
function opts (basedir) {
return {
basedir : basedir,
isFile : function (file) {
return files.hasOwnProperty(file)
},
readFileSync : function (file) {
return files[file]
}
}
}
t.equal(
resolve.sync('./baz', opts('/foo/bar')),
'/foo/bar/baz.js'
);
t.equal(
resolve.sync('./baz.js', opts('/foo/bar')),
'/foo/bar/baz.js'
);
t.throws(function () {
resolve.sync('baz', opts('/foo/bar'));
});
t.plan(3);
var files = {
'/foo/bar/baz.js' : 'beep'
};
function opts (basedir) {
return {
basedir : basedir,
isFile : function (file) {
return files.hasOwnProperty(file)
},
readFileSync : function (file) {
return files[file]
}
}
}
t.equal(
resolve.sync('./baz', opts('/foo/bar')),
'/foo/bar/baz.js'
);
t.equal(
resolve.sync('./baz.js', opts('/foo/bar')),
'/foo/bar/baz.js'
);
t.throws(function () {
resolve.sync('baz', opts('/foo/bar'));
});
});

test('mock package', function (t) {
t.plan(1);
var files = {
'/foo/node_modules/bar/baz.js' : 'beep',
'/foo/node_modules/bar/package.json' : JSON.stringify({
main : './baz.js'
})
};
function opts (basedir) {
return {
basedir : basedir,
isFile : function (file) {
return files.hasOwnProperty(file)
},
readFileSync : function (file) {
return files[file]
}
}
}
t.equal(
resolve.sync('bar', opts('/foo')),
'/foo/node_modules/bar/baz.js'
);
t.plan(1);
var files = {
'/foo/node_modules/bar/baz.js' : 'beep',
'/foo/node_modules/bar/package.json' : JSON.stringify({
main : './baz.js'
})
};
function opts (basedir) {
return {
basedir : basedir,
isFile : function (file) {
return files.hasOwnProperty(file)
},
readFileSync : function (file) {
return files[file]
}
}
}
t.equal(
resolve.sync('bar', opts('/foo')),
'/foo/node_modules/bar/baz.js'
);
});

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