The point is that cwd is not problematic at all.
Think of a command line program that you want to do something with your
current working directory:
$ /usr/local/bin/myls
$ cd ~
$ myls
On Monday, August 26, 2013 6:10:07 PM UTC+2, Gagle wrote:
>
> If node.js is better at requiring modules than other platforms why not
> include a warning when you execute a file with a relative path different
> than the directory of this file? The "process.root" solution is already
> implemented:
>
> process.root = path.dirname(process.mainModule.filename)
>
> We could say: "Hey! Node.js is aware the cwd problematic! Awesome"
>
> El lunes, 26 de agosto de 2013 17:05:16 UTC+2, Tim Caswell escribió:
>>
>> Node's require is always relative to the file that calls require. In
>> fact, the internal implementation of this is done by giving file a unique
>> copy of the require function that embeds that file's directory. If you
>> wanted to require relative to the cwd, then use process.cwd and
>> path.resolve. If you want to require relative to your main module, store a
>> value somewhere in your process (process.root maybe?) and use that in
>> conjunction with path.resolve.
>>
>> The fs operations are relative to the process.cwd instead of the calling
>> file. If you want them to be relative to the calling file, simply
>> path.resolve with __dirname and they will act like require does.
>>
>> Noce gives you more options in this regard than any other platform I've
>> worked with. After working with node's require semantics, it's now painful
>> for me to use other module systems because I can't write portable libraries
>> as easily. Sometimes it's not even possible to have a set of
>> inter-dependencies that only use relative requires.
>>
>>
>> On Mon, Aug 26, 2013 at 8:34 AM, Gagle <gagl...@gmail.com> wrote:
>>
>>> But now suppose you have another file called b.js that is required by
>>> a.js and is stored in a different directory and uses a relative path. You
>>> can't use __dirname.
>>>
>>> El lunes, 26 de agosto de 2013 15:32:17 UTC+2, ajlopez escribió:
>>>>
>>>> Ah! I see..
>>>>
>>>> But this is not a problem for require, but for fs.
>>>>
>>>> Ok, in my code I would use
>>>>
>>>> if (fs.existsSync(path.join(__**dirname, "settings.json"))
>>>>
>>>>
>>>> On Mon, Aug 26, 2013 at 10:27 AM, Gagle <gagl...@gmail.com> wrote:
>>>>
>>>>> $ pwd
>>>>> /home/user1
>>>>> $ mkdir dir
>>>>> $ cat > dir/app.js
>>>>> console.log (process.cwd ());
>>>>> $ node dir/app.js
>>>>> /home/user1
>>>>> $ cd dir && node app.js
>>>>> /home/user1/dir
>>>>>
>>>>> Now suppose you have this code:
>>>>>
>>>>> //app.js
>>>>> var fs = require ("fs");
>>>>> if (fs.existsSync ("settings.json")){
>>>>> doSomethingUseful ();
>>>>> }else{
>>>>> //Warning!!
>>>>> saveToDatabaseDefaultSettings ();
>>>>> }
>>>>>
>>>>> And execute the main file with a relative path:
>>>>>
>>>>> node dir/app
>>>>>
>>>>> You will enter into the else case because settings.json is stored
>>>>> inside dir but the cwd is not dir, so you expect the path
>>>>> ./dir/settings.json but in fact the path is ./settings.json.
>>>>>
>>>>> El lunes, 26 de agosto de 2013 15:05:10 UTC+2, ajlopez escribió:
>>>>>>
>>>>>> Gagle, can you write down a concrete use case?
>>>>>>
>>>>>>
>>>>>> On Mon, Aug 26, 2013 at 9:59 AM, Gagle <gagl...@gmail.com> wrote:
>>>>>>
>>>>>>> Because it's local to the file, it doesn't work anywhere.
>>>>>>>
>>>>>>> El lunes, 26 de agosto de 2013 14:46:55 UTC+2, mks escribió:
>>>>>>>
>>>>>>>> __dirname is local to any file. It works everywhere.
>>>>>>>>
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