`npm` allows only to do `cd dir &amp;&amp; command -args`, which will also run on Windows. 

A change to use `node`&#39;s spawn functionality has been made in PR https://github.com/npm/npm/pull/10958, but was rejected, due to the above solution.

As noted above:

&gt;npm is probably using 

    var spawn = require(&#39;child_process&#39;).spawn

&gt;which would allow you to set options like:
 
        {cwd: pwd + &#39;somepath&#39;}

&gt;but isn&#39;t exposing it.     
&gt;
&gt;I&#39;ve solved it with a fairly large `install.js`, which does roughly that and it gets called from `package.json` like above. The API of `child_process` isn&#39;t that easy to handle, though, since it throws loads of hard to debug errors. Took me some time, but I am happy now.

try 

     const { execSync } = require(&#39;child_process&#39;);

     execSync(`cd ${your_working_directory} &amp;&amp; npm install`) 

As mentioned [here](http://developer.android.com/preview/behavior-changes.html#behavior-apache-http-client), Android M will not support the Apache HTTP API.  The docs state to: 

&gt;use the HttpURLConnection class instead.

or 
&gt;To continue using the Apache HTTP APIs, you must first declare the following compile-time dependency in your build.gradle file:
&gt;
&gt;android { useLibrary &#39;org.apache.http.legacy&#39;
&gt;}

I have converted much of my project&#39;s usage of HttpClient to HttpURLConnection, however, I still *need* to use the HttpClient in a few areas.  Hence, I am trying to declare &#39;org.apache.http.legacy&#39; as a compile-time dependency but am getting an error in build.gradle:

&gt;Gradle DSL method not found: &#39;useLibrary()&#39;

My question is: how do I declare &#39;org.apache.http.legacy&#39; as a compile-time dependency in my project?

Any help is much appreciated.  Thanks

How to add Apache HTTP API (legacy) as compile-time dependency to build.grade for Android M?

Take the following line of sample code:

    Set&lt;String&gt; someSet = someColletion.stream().map(p -&gt; p.toString()).collect(Collectors.toSet());

I want a `HashSet`. Taking a debugger to the code, I am indeed getting a `HashSet`. I had a look at `java.util.stream.Collectors.toSet()` to observe the following code:

    public static &lt;T&gt; Collector&lt;T, ?, Set&lt;T&gt;&gt; toSet() {
        return new CollectorImpl&lt;&gt;((Supplier&lt;Set&lt;T&gt;&gt;) HashSet::new, Set::add,
                                   (left, right) -&gt; { left.addAll(right); return left; },
                                   CH_UNORDERED_ID);
    }

The contract *guarantees* a `Set`, and implementation decides on a `HashSet`; seems reasonable. However, my implementation needs the constant time lookup guaranteed by a `HashSet`, not just any old `Set`. If the implementation of `toSet()` decides to use say a `FooSet`, which is perfectly within its rights, my implementation is compromised.

What is the best practise solution to this problem?

Collectors.toSet() and HashSet

**Q:** Is it possible to change the the context in which npm runs scripts?

What I want to is the following:

&lt;!-- language: lang-js --&gt;

    &quot;scripts&quot;: {
       &quot;test&quot;: &quot;gulp mocha&quot;,
       &quot;pre-install&quot;: &quot;./deps/2.7/cpython/configure --prefix=$(pwd)/build --exec-prefix=$(pwd)/build &amp;&amp; make -C deps/2.7/cpython &amp;&amp; make -C deps/2.7/cpython install&quot;,
       &quot;install&quot;: &quot;node-gyp rebuild&quot;
    },

Obviously `cd deps/2.7/cpython/ &amp;&amp; ./configure` would work on UNIX-like systems but not on windows. 

**Why:** The root of the problem is, that the `configure` command of the python repo outputs files into the directory where it is called. The files however are build relevant for `make` and `make install` which look for the files in the directory of the repo.

In this case I can&#39;t change the `Makefile` since the build process of Python is understandably complex.

**Alternative:** The alternative is probably to write some `install.js` and use node&#39;s OS independent API and some `child_process.exec()`, which I am probably gonna do. However, not leaving *npm* would be really nice.

Change working directory for npm scripts

Q: Is it possible to change the the context in which npm runs scripts?
What I want to is the following:

<pre><code class="hljs language-bash">"scripts": {
 "test": "gulp mocha",
 "pre-install": "./deps/2.7/cpython/configure --prefix=$(pwd)/build --exec-prefix=$(pwd)/build &#x26;&#x26; make -C deps/2.7/cpython &#x26;&#x26; make -C deps/2.7/cpython install",
 "install": "node-gyp rebuild"
},
</code></pre>
Obviously <code>cd deps/2.7/cpython/ &#x26;&#x26; ./configure</code> would work on UNIX-like systems but not on windows.
Why: The root of the problem is, that the <code>configure</code> command of the python repo outputs files into the directory where it is called. The files however are build relevant for <code>make</code> and <code>make install</code> which look for the files in the directory of the repo.
In this case I can't change the <code>Makefile</code> since the build process of Python is understandably complex.
Alternative: The alternative is probably to write some <code>install.js</code> and use node's OS independent API and some <code>child_process.exec()</code>, which I am probably gonna do. However, not leaving npm would be really nice.

My question concerns an existing library that I wish to publish as an NPM module. The library is already in use, and currently `require`d via the local file system.

**How can I specify the root directory of my module&#39;s files?**

If I have a structure like:

    .
    ├── package.json
    ├── src
    |   ├── js
    |   └────── lib
    |   └───────── my
    |   └───────────── thing.js
    |   └───────────── that.js

**How do I specify that the root of my module, and accessible files is `src/js/lib/my/`?**

I would like to use as follows from an outside project:

    var thing = require(&#39;my/thing&#39;),
        that = require(&#39;my/that&#39;);

I saw the `&quot;files&quot;` property in package.json, is this the right way to go?

Root directory in package.json

    console.log(process.env.COLUMNS)

Yields `undefined`, although,

    $ echo $COLUMNS

Outputs as expected:

    78

I have been trying running Node like this `env node myprog.js`, still `undefined`. What&#39;s wrong with me or any other way to know the width of terminal? (For nice formatting of some output data).


Get width of terminal in Node.js

This works:

    import app from &#39;./../app.js&#39;;

But this doesn&#39;t:

    import app from path.join(process.cwd(), &#39;app&#39;);

I&#39;m Getting:

    SyntaxError: /path/file.js: Unexpected token (5:16)
    &gt; 5 | import app from path.join(process.cwd(), &#39;app&#39;);
        |                 ^


It is possible (and/or how) to use &quot;dynamic&quot; paths? (not hardcoding the path or rely in relative paths).

Importing modules using ES6 syntax and dynamic path

I&#39;m attempting to load an RSA private key into my nodejs application using environment variables, but the newlines seem to be being auto-escaped.

For the following, assume that the ```PRIVATE_KEY``` env var is set to the following (not my actual key):

    PRIVATE_KEY=&quot;-----BEGIN RSA PRIVATE KEY-----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\n37sJ5QsW+sJyoNde3xH8vdXhzU7eT82D6X/scw9RZz+/6rCJ4p0=\n-----END RSA PRIVATE KEY-----&quot;

If I call ```console.log``` directly with the preceding string, I get the following as output:

    -----BEGIN RSA PRIVATE KEY-----
    MIICXAIBAAKBgQCqGKukO1De7zhZj6+H0qtjTkVxwTCpvKe4eCZ0FPqri0cb2JZfXJ/DgYSF6vUp
    wmJG8wVQZKjeGcjDOL5UlsuusFncCzWBQ7RKNUSesmQRMSGkVb1/3j+skZ6UtW+5u09lHNsj6tQ5
    1s1SPrCBkedbNf0Tp0GbMJDyR4e9T04ZZwIDAQABAoGAFijko56+qGyN8M0RVyaRAXz++xTqHBLh
    3tx4VgMtrQ+WEgCjhoTwo23KMBAuJGSYnRmoBZM3lMfTKevIkAidPExvYCdm5dYq3XToLkkLv5L2
    pIIVOFMDG+KESnAFV7l2c+cnzRMW0+b6f8mR1CJzZuxVLL6Q02fvLi55/mbSYxECQQDeAw6fiIQX
    GukBI4eMZZt4nscy2o12KyYner3VpoeE+Np2q+Z3pvAMd/aNzQ/W9WaI+NRfcxUJrmfPwIGm63il
    AkEAxCL5HQb2bQr4ByorcMWm/hEP2MZzROV73yF41hPsRC9m66KrheO9HPTJuo3/9s5p+sqGxOlF
    L0NDt4SkosjgGwJAFklyR1uZ/wPJjj611cdBcztlPdqoxssQGnh85BzCj/u3WqBpE2vjvyyvyI5k
    X6zk7S0ljKtt2jny2+00VsBerQJBAJGC1Mg5Oydo5NwD6BiROrPxGo2bpTbu/fhrT8ebHkTz2epl
    U9VQQSQzY1oZMVX8i1m5WUTLPz2yLJIBQVdXqhMCQBGoiuSoSjafUhV7i1cEGpb88h5NBYZzWXGZ
    37sJ5QsW+sJyoNde3xH8vdXhzU7eT82D6X/scw9RZz+/6rCJ4p0=
    -----END RSA PRIVATE KEY-----

You can see that the newline chars are being respected. However, if I call ```console.log(process.env[&quot;PRIVATE_KEY&quot;])```, the output contains the `\n` literal instead of actual newlines:

    -----BEGIN RSA PRIVATE KEY-----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\n37sJ5QsW+sJyoNde3xH8vdXhzU7eT82D6X/scw9RZz+/6rCJ4p0=\n-----END RSA PRIVATE KEY-----

I&#39;ve been trying to find more information online about how node processes environment variables with no luck. How do I load this key via env vars while maintaining newline characters? If that&#39;s not possible, how can I restore them?

Environment variables containing newlines in Node?

I have an issue I&#39;ve not seen before with the Mongoose findByIdAndUpdate not returning the correct model in the callback.

Here&#39;s the code:

        var id = args._id;
        var updateObj = {updatedDate: Date.now()};
        _.extend(updateObj, args);

        Model.findByIdAndUpdate(id, updateObj, function(err, model) {
            if (err) {
                logger.error(modelString +&#39;:edit&#39; + modelString +&#39; - &#39; + err.message);
                self.emit(&#39;item:failure&#39;, &#39;Failed to edit &#39; + modelString);
                return;
            }
            self.emit(&#39;item:success&#39;, model);
        });

The original document in the db looks like this:

    {
        _id: 1234
        descriptors: Array[2],
        name: &#39;Test Name 1&#39;
    }

The updateObj going in looks like this:

    {
        _id: 1234
        descriptors: Array[2],
        name: &#39;Test Name 2&#39;
    }  

The model returned from the callback is identical to the original model, not the updatedObj.
If I query the db, it has been updated correctly.  It&#39;s just not being returned from the database.

This feels like a &#39;stupid-user&#39; error, but I can&#39;t see it.  Any ideas greatly appreciated. 

Mongoose findByIdAndUpdate not returning correct model

When you run `npm install --save somepackage`, it usually adds something like this into package.json:

    &quot;dependencies&quot;: {
		&quot;somepackage&quot;: &quot;^2.1.0&quot;
	}

Because the version is prepended with a caret(^), this means that if you later run `npm install`, it might install version 2.3.0 instead. This can be undesirable for fairly obvious reasons. `npm shrinkwrap` is useful, but doesn&#39;t really solve the problem.

So, I have several questions:

 1. When installing a package, is it possible to specify that you want it to be set to a specific version in package.json (no caret before the version number)?
 2. When publishing a package to npm, is there any way to prevent the default of including the caret before the version when other developers install your package?

Make `npm install --save` add a strict version to package.json

Node JS and NPM were working well before. Recently I have re-installed the Node JS, NPM and the problem started. After I install a module like an example `npm install -g bower`, the module gets installed successfully but `bower -v` gives

&gt; &#39;bower&#39; is not recognized as an internal or external command,
operable program or batch file.

I have checked the installation path 
`C:\Users\XXXXX\AppData\Roaming\npm\node_modules` has all the old installed modules. I have tried to uninstall them and reinstall the modules, but still, I am getting the same error.

Even I have deleted the entire folder and installed all the modules again but the result is the same.

I don&#39;t know why I am getting this error after reinstalling NodeJS NPM.




Node JS NPM modules installed but command not recognized

I am working on my first npm module. I briefly worked with TypeScript before and a big problem was that for many modules there were no definition files available. So I thought it would be a good idea to write my module in TypeScript.

However, I can&#39;t find any information on the best way to do that. I found this related question &quot;[Can I write npm package in CoffeeScript?][1]&quot; where people suggest only publishing the JavaScript files. But in contrast to the CoffeeScript files, the TypeScript files might actually be useful if they are used within a TypeScript application.

Should I include TypeScript files when publishing an npm module, or should I only publish the JavaScript files and provide the generated .d.ts files to DefinitelyTyped?

  [1]: https://stackoverflow.com/questions/13645824/can-i-write-npm-package-in-coffeescript

Writing npm modules in TypeScript

Just a simple question : in my node.js project, how could I just run the postinstall script, without running install before ?

FYI, this is my package.json :

    {
      &quot;name&quot;: &quot;gestionclientjs&quot;,
      ...,
      &quot;dependencies&quot;: {
		...
      },
      &quot;repository&quot;: {},
      &quot;devDependencies&quot;: {
		...
      },
      &quot;engines&quot;: {
        &quot;node&quot;: &quot;&gt;=0.10.0&quot;
      },
      &quot;scripts&quot;: {
        &quot;test&quot;: &quot;grunt test&quot;,
        &quot;postinstall&quot; : &quot;bower install &amp;&amp; node ./app/server/dbSeed.js&quot;,
        &quot;start&quot;: &quot;node app/server/app.js&quot;
      }
    }

For now, I run :

    npm install

in my project, but I want to run

    npm postinstall

when I want (and when I&#39;m sure dependencies are ok). 

NPM : how to just run post-install?

I Ubuntu, I am learning about cmake and make, and just trying a simple example. I have two directories: `src` and `build`. In `src`, I have two files: `main.cpp`, and `CMakeLists.txt`, which has (only) the following text:

    add_executable(test main.cpp)
    link_directories(/usr/lib/x86_64-linux-gnu)
    target_link_libraries(test protobuf)

In `/usr/lib/x86_64-linux-gnu`, there is a shared library called `libprotobuf.so`, which I want to link against. My `main.cpp` uses functions in this library, by including the releveant header file, `#include &lt;google/protobuf/message.h&gt;`.


Now, in my `build` directory, I run `cmake ../src`, and then `make`. However, I then get linker errors telling me that there are undefined references to some of the functions in the protobuf library. If I do a search through all the files and subdirectories in `build`, there is not mention of anything related to protobuf.

However, if I remove the `link_directories` line in my `CMakeLists.txt` file, and instead write the full path to the library when specifying the executable, i.e. `target_link_libraries(test /usr/lib/x86_64-linux-gnu/libprotobuf.so)`, it compiles and links fine.

Why is `link_directories` not allowing cmake to find this library?

Cmake cannot find library using &quot;link_directories&quot;

I&#39;m following the instructions of someone whose repository I cloned to my machine. I want to use the `make` command as part of setting up the code environment, but I&#39;m using Windows. I searched online, but I could only find a `make.exe` file, a `make-4.1.tar.gz` file (I don&#39;t know what to do with it next) and instructions for how to download MinGW (for GNU; but after installing it I didn&#39;t find any mention of &quot;make&quot;).

How do I use `make` in Windows without a GNU compiler or related packages?

How to install and use &quot;make&quot; in Windows?

Im trying to run a c++ program on github. (available at the following link https://github.com/mortehu/text-classifier)

I have a mac, and am trying to run it in the terminal. I think I have downloaded autoconf and automake but am not sure. To run the program I am going to the correct folder in terminal then running

    ./configure &amp;&amp; make 

But I get the error:

&gt; WARNING: &#39;aclocal-1.15&#39; is missing on your system.
&gt;          You should only need it if you modified &#39;acinclude.m4&#39; or
&gt;          &#39;configure.ac&#39; or m4 files included by &#39;configure.ac&#39;.
&gt;          The &#39;aclocal&#39; program is part of the GNU Automake package:
&gt;          &lt;http://www.gnu.org/software/automake&gt;
&gt;          It also requires GNU Autoconf, GNU m4 and Perl in order to run:
&gt;          &lt;http://www.gnu.org/software/autoconf&gt;
&gt;          &lt;http://www.gnu.org/software/m4/&gt;
&gt;          &lt;http://www.perl.org/&gt; make: *** [aclocal.m4] Error 127

I have xcode and g++ and all the things required to run c programs, but as is probably obvious, I have no idea what Im doing.

What is the easiest, simplest way to run the program in the above link? I realise it comes with a readme and example usage but I can not get that to work.





How to overcome &quot;&#39;aclocal-1.15&#39; is missing on your system&quot; warning?

I am working on Windows 10. I want to run a &quot;make build&quot; in MINGW64 but following error comes up:

    $ make build
    bash: make: command not found

I want to build [Glide for Golang][1]

I tried following:

    $ sudo yum install build-essential
    bash: sudo: command not found
As well as:

    $ yum install build-essential
    bash: yum: command not found
And:

    $ apt-cyg build-essential
    bash: apt-cyg: command not found

How can I &quot;work-around&quot; this problem?


  [1]: https://github.com/Masterminds/glide &quot;Glide for Golang&quot;



MINGW64 &quot;make build&quot; error: &quot;bash: make: command not found&quot;

I want to set a variable if it is empty. I tried in this way:

    ....
    TEST := $(something)
    ...
    TEST ?= $(something else)

The first `$(something)` may return an empty string, however the conditional assignment ?= works only if the previous variable is not set, not if empty.

Any elegant solution to set the variable if empty?

---

**EDIT**
I found this solution:

    ....
    TEST := $(something)
    ...
    TEST += $(something else)
    TEST := $(word 1, $(TEST))

but I think that there will be one more elegant.

How to conditionally set Makefile variable to something if it is empty?

I&#39;m receiving this error when trying to debug my node application using the `npm start` command.

#### Error:

&lt;!-- language: lang-none --&gt;

    npm ERR! Windows_NT 6.3.9600
    npm ERR! argv &quot;C:\\Program Files\\nodejs\\\\node.exe&quot; &quot;C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js&quot; &quot;start&quot;
    npm ERR! node v0.12.7
    npm ERR! npm  v2.11.3
    
    npm ERR! missing script: start
    npm ERR!
    npm ERR! If you need help, you may report this error at:
    npm ERR!     &lt;https://github.com/npm/npm/issues&gt;npm ERR! Please include the following file with any support request:
    npm ERR!     C:\Users\andrmoll.NORTHAMERICA\Documents\GitHub\SVIChallenge\npm-debug.log
 

#### From the debug file:

&lt;!-- language: lang-none --&gt;

    Error: missing script: start
           at run (C:\Program Files\nodejs\node_modules\npm\lib\run-script.js:142:19)
           at C:\Program Files\nodejs\node_modules\npm\lib\run-script.js:58:5
           at C:\Program Files\nodejs\node_modules\npm\node_modules\read-package-json\read-json.js:345:5
           at checkBinReferences_ (C:\Program Files\nodejs\node_modules\npm\node_modules\read-package-json\read-json.js:309:45)
           at final (C:\Program Files\nodejs\node_modules\npm\node_modules\read-package-json\read-json.js:343:3)
           at then (C:\Program Files\nodejs\node_modules\npm\node_modules\read-package-json\read-json.js:113:5)
           at C:\Program Files\nodejs\node_modules\npm\node_modules\read-package-json\read-json.js:300:12
           at evalmachine.&lt;anonymous&gt;:334:14
           at C:\Program Files\nodejs\node_modules\npm\node_modules\graceful-fs\graceful-fs.js:102:5
           at FSReqWrap.oncomplete (evalmachine.&lt;anonymous&gt;:95:15)


Start script missing error when running npm start

NPM 2.11.3

I&#39;m building a library in Node. This library is only for use by the company I am currently working for. I think this means that the license is &quot;None&quot;. But when I `npm init` it wants me to use an SPDX License. &quot;None&quot; or &quot;Unlicensed&quot; are not valid options. 

`npm WARN package.json data_monitoring_api@0.1.0 license should be a valid SPDX license expression`

There is some discussion around this on the NPM GitHub issue tracker but I can&#39;t find anything that definitively answers this. Perhaps NPM doesn&#39;t support this concept, but that seems odd. 

What should I put for this field in this case? I&#39;d like to get rid of the npm warnings related to this. 

While the docs say that UNLICENSED is valid, it still gives a warning: 

    $ cat package.json | grep licen
      &quot;license&quot;: &quot;UNLICENSED&quot;,
    
    $ npm install 
    npm WARN package.json data_monitoring_api@0.1.0 license should be a valid SPDX license expression

Content Type	Original Author	Original Content on Stackoverflow
Question	eljefedelrodeodeljefe	View Question on Stackoverflow
Solution 1 - node.js	eljefedelrodeodeljefe	View Answer on Stackoverflow
Solution 2 - node.js	Paul Sweatte	View Answer on Stackoverflow
Solution 3 - node.js	pref	View Answer on Stackoverflow

Change working directory for npm scripts

node.js Problem Overview

node.js Solutions

Solution 1 - node.js

Solution 2 - node.js

Solution 3 - node.js

Collectors.toSet() and HashSet

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