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module: restore and warn on require('.') usage with NODE_PATH #1363

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silverwind wants to merge 6 commits into from
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module: restore and warn on require('.') usage with NODE_PATH #1363

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685d6e5
module: search NODE_PATH in require('.')
silverwind Apr 7, 2015
712e75c
Better module dir detection, add warning
silverwind Apr 7, 2015
9a2e885
Warn once through util.deprecate, refactor
silverwind Apr 11, 2015
affc1f5
Move dot tests to own file
silverwind Apr 16, 2015
5e84210
Fix test and nits
silverwind Apr 16, 2015
7a73480
Fix deprecation message
silverwind Apr 16, 2015
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Warn once through util.deprecate, refactor
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@silverwind
silverwind committed Apr 11, 2015
commit 9a2e88513cedcfefe30f8222a32a40cf3b9986d0
21 changes: 14 additions & 7 deletions lib/module.js
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Original file line number Diff line number Diff line change
Expand Up @@ -125,6 +125,11 @@ function tryExtensions(p, exts) {
}


const noopDeprecateRequireDot = util.deprecate(function() {},
`warning: require('.') did resolve outside the package directory. ` +
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@rvagg rvagg Apr 15, 2015

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the use of a template string seems unnecessary here

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@rvagg rvagg Apr 15, 2015

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also, "did resolve" could be just "resolved"

`This functionality will be deprecated soon.`);


Module._findPath = function(request, paths) {
var exts = Object.keys(Module._extensions);

Expand Down Expand Up @@ -169,9 +174,8 @@ Module._findPath = function(request, paths) {
}

if (filename) {
if (request === '.' && i > 0) {
console.error(`(node) warning: require('.') resolved to ${filename}`);
}
// Warn once if '.' resolved outside the module dir
if (request === '.' && i > 0) noopDeprecateRequireDot();
Module._pathCache[cacheKey] = filename;
return filename;
}
Expand Down Expand Up @@ -215,11 +219,14 @@ Module._resolveLookupPaths = function(request, parent) {
paths = parent.paths.concat(paths);
}

// For '.', put the module's dir at the front of the resolve paths
// TODO(silverwind): Treat '.' exactly the same as './'
// Maintain backwards compat with certain broken uses of require('.')
// by putting the module's directory in front of the lookup paths.
if (request === '.') {
paths.splice(0, 0, parent && parent.filename ?
path.dirname(parent.filename) : path.resolve(request));
if (parent && parent.filename) {
paths.splice(0, 0, path.dirname(parent.filename));
} else {
paths.splice(0, 0, path.resolve(request));
}
}

return [request, paths];
Expand Down