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Split out modulePaths and defaultPaths

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This way, the "default" paths of ~/.node_libraries and {prefix}/lib/node are only checked *after* anything that the user has placed into the NODE_PATHS environ, or pushed onto require.paths.

This makes require.paths a much more effective write-target, albeit slightly less useful as a read-target.  However, given the existence of require.resolve(), this is less of an issue -- if you want to know what a module ID will map to, just ask that question and get an authoritative answer from the loading machinery.
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isaacs 2010-10-19 11:36:10 -07:00 committed by Ryan Dahl
parent b0aadbea6b
commit 492fc0d752
1 changed files with 12 additions and 7 deletions
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19
src/node.js
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@ -126,15 +126,20 @@ var module = (function () {
var pathModule = createInternalModule('path', pathFn);
var path = pathModule.exports;
var modulePaths = [path.join(process.execPath, "..", "..", "lib", "node")];
if (process.env["HOME"]) {
modulePaths.unshift(path.join(process.env["HOME"], ".node_libraries"));
// The paths that the user has specifically asked for. Highest priority.
// This is what's hung on require.paths.
var modulePaths = [];
if (process.env.NODE_PATH) {
modulePaths = process.env.NODE_PATH.split(":");
}
if (process.env["NODE_PATH"]) {
modulePaths = process.env["NODE_PATH"].split(":").concat(modulePaths);
// The default global paths that are always checked.
// Lowest priority.
var defaultPaths = [];
if (process.env.HOME) {
defaultPaths.push(path.join(process.env.HOME, ".node_libraries"));
}
defaultPaths.push(path.join(process.execPath, "..", "..", "lib", "node"));
var extensions = {};
var registerExtension = removed('require.registerExtension() removed. Use require.extensions instead');
@ -185,7 +190,7 @@ var module = (function () {
var start = request.substring(0, 2);
if (start !== "./" && start !== "..") {
return [request, modulePaths];
return [request, modulePaths.concat(defaultPaths)];
}
// Is the parent an index module?