How to setup react native to use flow? - reactjs-native

I was wondering how I have to setup .flowConfig in order to use flow on a React- Native project. I created an empty .flowConfig file but as soon as I include the react-native module in a JS source file and check this file with flow, flow displays a 'not_found' error message.

Follow the instructions on https://flowtype.org/ to create your projects .flowconfig file, you can copy and paste it, you also have to install flow via brew install flow and add the flow binaries to your package.json, once you've done all this, you should be able to manually run flow and check for error types, but, that is not really optimal.
I haven't been able to set up flow on atom without using nuclide, I'm guessing with some digging around the packages you can find something that works that allows for on-the-fly flow checking.
The link provided by #jerome (https://egghead.io/lessons/react-setup-nuclide-to-use-flow-and-eslint-mac) is useful but only for nuclide installation, still worth a watch.

I advise to watch https://egghead.io/lessons/react-setup-nuclide-to-use-flow-and-eslint-mac it explains how to use Flow with Nuclide. I had issue to make flow works and my main mistake was that I didn't install flow (brew install flow). On the official site (https://flowtype.org/docs/getting-started.html) they don't mention you need to install flow (or it is not super obvious if it is the case).
Anyway watch the video it is great, it even explains ESLint :)

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How do I build Flutter application locally?

I have developed (on a Mac) a small Flutter app to learn the technology. Now, I would like to build it and use it on Mac, Linux and Android. The few packages I have used claim compatibility with all systems.
So the first thing I did was to run flutter build macos. I indeed obtain an application under build/macos/Build/Products/Release/nameofmyapp.app. It seems this runs correctly, but it fails, for instance, loading data from a DB, which is the first thing it should do.
I have a few questions:
are there any other steps that I should take? I see a long guide about the release process, but to be frank I don't need or want any of that: I only want to use the app myself. Is there something else to do other than flutter build macos?
am I looking for the built app in the right place?
if I did everything correctly, could it be that I need to authorize the app to access to the file in some way? Should I manage this workflow myself, or is there a standard way to perform this action in Flutter?
Sorry for asking more than one question, but I am not sure whether what I am doing wrong is
the build process
where to look for the built app, or
(not) handling the app permissions.
EDIT
Following a suggestion by Madhavam, I tried flutter run --release. The result is identical to running the built application: nothing is loaded from the database, and no errors appear in the console.
To be clear, these are the libraries that are not working:
sqflite should load data from a database (in my Documents folder) but does not show anything
file picker cross should allow me to load data from a JSON file, but when I try this interaction, I an not shown any dialog to load a file
shared preferences should read some settings, but they all appear as null
In short, anything that has to do with interacting with external files or storage does not seem to work
Yup, you have to manage it yourself. Take a look at this package
:https://pub.dev/packages/permission_handler
If you're using Firebase then you probably need to add the release keys.
One thing too, if you face an error only in the release build then I recommend running the app with flutter run --release so that you can see the errors that are being thrown.
So it seems that this is related to the default being an app that runs in sandbox. Since I do not want to distribute the app, it was fine for me to disable this setting. Details are in this answer

Hyperledger composer generator: Trying to copy from a source that doesn't exist (no concepts support for Angular)

I have a composer-rest-server running on localhost:3000. To go with that, I tried to generate an Angular 2 app using yo hyperledger-composer. My business network models also have a abstract concept Spray{...} present.
I believe the documentation is outdated as I was presented with slightly different options than on the documentation. After choosing Angular and following through the steps, I got an
AssertionError: Trying to copy from source that does not exist ... /concept/concept.component.ts
Based on some quick google searches, I was able to find this issue on their Github - https://github.com/hyperledger/composer/issues/3927 however in my case, I am not even able to build the Angular app so I don't even get to the compilation stage.
Is there any way to build the app right now where it's at?
I've created a Github issue explaining steps to reproduce this and also included a hacky fix which is to comment out the lines in the generator code which copy over the concept files.
Link - https://github.com/hyperledger/composer/issues/4328

Ember-Validations: Installation

I have an Ember-CLI application that is very form heavy.
I started using Ember Forms to help with layout and templating, which is nice and seems to be working fine.
Apparently for validation, it requires Dockyard's Ember-Validation as well... This particular dependency seems to be installed differently and I am lost as how to do this.
I am used to using something simple like bower install ... and then just adding the dependency in brocfile, but in this case, Dockyard provides a huge list of builds to choose from and I have no idea which one to use?
Does anyone have experience installing ember-validation in an ember-cli project and getting to play nicely with ember-forms? Or perhaps it is actually more simple than I think, and I am just getting thrown off by all the builds to choose from?
To install it you can add manually the url to the build in bower.json
"ember-validations": "http://builds.dockyard.com.s3.amazonaws.com/ember-validations/ember-validations-latest.js",
And after that run bower install it should work fine.
Hope it helps.

Red5 demos don't work

I just installed red5 on my server, and the install seems to work fine. As you can see here: http://onelifemedia.com:5080
I got this far by using this walkthrough: http://www.webhostingtalk.com/showthread.php?t=1046590
The /demos page gives me a 404 error. So I logged onto the server, and checked to see if the "demo" directory was already there. It was not.
The applications that I installed were a directory up from the root directory. I'm not sure if this is right or not.
Either way, my end goal is to actually get something working besides the main page. If I can get the demos to work, then hopefully I should be well on my way.
I guess my questions can be broken down like this:
Does anyone know how to get the demos working?
Should I forget about the demos, and try to start writing my own code?
If I should write my own code, how should I go about installing it? Since the installer is not properly installing the demos.
Thanks
The tutorial is good but you dont need the admin app. Use the installer link in the tutorial and install the demo you want to use. The content of the "demos" directory is only the swf files used to access the server demos which you use the installer app to install. For instance , select "oflaDemo" and then from the main page navigate to demos/oflaDemo et voila.
I know I'm biased being a core developer, but we've attempted to make the server as ez as possible to use.
I could install demos from the latest svn trunk, Checkout the source, use ant&ivy to build and run the server and you can install two sample apps(oflaDemo and SOSample).
You may need to use ivy commands resolve some of the common issues during installations.
E:\dev\red5\java\server\trunk>ant ivyclear dist
()Red5 user mailing list may help you, because this is not exactly problem with Red5 source.
()http://stackoverflow.com/questions/11156222/red5-demos-not-working/11935532#11935532
I could resolve the issue based on the information in Red5 users mailing list and comments by Mr.Mondain in one of the posts in Stackoverflow

Any existing pure PHP "make" tools?

Let me elaborate on the question...
I have a custom CMS (built on codeigniter FTW) that includes many different types of modules.
Every time we have a new project come through the door, it is a variation and amalgamation of a few of the existing modules.
Sometimes a project comes through with requirements that are not satisfied by the existing modules, in that case I will write a new module...
All the modules are separated out in folders and the code is VC-ed using GIT. Every module has it's own Model, View, Controller, SQL and Javascript files. All the dependencies are also separated and folder-ed nicely...
The next step for me is to create some sort of installer script that will take me through the "scaffolding" process step by step, allowing me to choose from the existing modules. A glorified "makefile" if you may...
Rather than rolling my own, does anyone know of any such thing out in the wild.
I know of Apache ANT (java), what I need is something in pure PHP with very low or no dependencies...
I would like something as simple as running a git pull and then php make.php
Thanks.
The "Ant-like" alternative I am aware of in PHP land is phing it is written in PHP and it will allow you to perform several tasks for packaging, deploying and testing your web applications. The documentation is a great starting point if you want to hit the ground running.
It is can also be extended to define new tasks if needed (examples and explanations are provided in the documentation)
Reading through the doco it appears to be possible to install Phing without PEAR as documented here you would have to correctly setup the environment on each machine you wish to use Phing on. I can not confirm this method though as I use PEAR for all my installs.

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