AlphaGit

sudo apt-get update

# need the same gcc-compiler as the kernel uses, or so NVidia says
sudo apt install -y gcc=4:9.3.0-1ubuntu2 make libgl1-mesa-glx libxi6 libxrender1

# download and install the NVidia drivers
wget https://us.download.nvidia.com/XFree86/Linux-x86_64/470.94/NVIDIA-Linux-x86_64-470.94.run
chmod +x NVIDIA-Linux-x86_64-470.94.run
sudo ./NVIDIA-Linux-x86_64-470.94.run
# manually go through the install options

AlphaGit

FROM python:3.7

WORKDIR /usr/src/app

COPY requirements.txt ./
RUN pip install --no-cache-dir -r requirements.txt

COPY . .

RUN python -m spacy download en

AlphaGit

# log hours to destination systems each day at noon
0 12 * * * /home/myUser/scripts/log-daily-hours.sh

# generate monthly report of worklogs each month, 1st day at 8 AM
0 8 1 * * /home/myUser/scripts/log-monthly-hours.sh

AlphaGit

function checkoutCart(session) {                                    // this is the code that executes on checkout
  trackActivity(session, ACTIONS.CHECKED_OUT);                      // it tracks that the user is checking out
  return getUserInfo(session.userId)                                // gets the user info with the user id
    .then(user => getDiscountAmount(user))                          // then it gets the discount for the user
    .then(discAmt => addDiscountIfAny(session, discAmt))            // then it applies the discount
    .then(getPaymentScreenConfig)                                   // then it gets the payment screen configuration
    .then(payScrCfg => new PaymentScreen(payScrCfg, session.cart)); // and it returns the payment screen
}

function getDiscountAmount(user) {                                  // this is the code that gets the discount amount

AlphaGit

function checkOutCart(session, cb) {                            // this is the code that executes on checkout
  getUserInfo(session.userId, function(err, user) {             // it'll get the user information
    if (err) { return cb(err); }                                // if it has any error, it will call back with it
    if (user.hasDiscountedProfile) {                            // if the user has a profile for discounts
      retrieveDiscount(user.profileId, function(err, discAmt) { // it will retrieve that discount
        if (err) { return cb(err); }                            // on error, it aborts the operation
        session.cart.addDiscount(discAmt);                      // adds the discount to the cart
        getPaymentScreenConfig(function(err, payScrCfg) {       // it retrieves the configuration from the payment screen
          if (err) { return cb(err); }                          // on error, it aborts
          cb(null, new PaymentScreen(payScrCfg, session.cart)); // creates a payment scree

AlphaGit

$ErrorActionPreference = "SilentlyContinue"

kill -force -processname 'Docker for Windows', com.docker.db, com.docker.slirp, com.docker.proxy, com.docker.9pdb, moby-diag-dl, dockerd
kill -force -processname com.docker.service

try {
pushd "C:\Program Files\Docker\Docker\Resources"
./MobyLinux.ps1 -Destroy
popd
} Catch {}

AlphaGit

Referencing the decision tree from https://en.wikipedia.org/wiki/File:CART_tree_titanic_survivors.png

Original data from https://www.kaggle.com/c/titanic/data

Description	Count	% from total	Notes
Total	891	100%
Died	549	62%
Survived	342	38%

AlphaGit

namespace SomeLargeDataHolder
{
    // adapted from https://blogs.msdn.microsoft.com/joshwil/2005/08/10/bigarrayt-getting-around-the-2gb-array-size-limit/

    // Goal: create an array that allows for a number of elements > Int.MaxValue
    class BigArray<T>
    {
        // These need to be const so that the getter/setter get inlined by the JIT into 
        // calling methods just like with a real array to have any chance of meeting our 
        // performance goals.

AlphaGit

(Note: this post was originally a question in StackOverflow, but has been removed as the question received no answers or activity in over a year, and was deemed an abandoned question.)

Protractor and Travis, cross-platform scripts

"...and other horror stories."

I've been trying for the past few days to get this to work with no luck. As such, I have a long story to tell but I'll break it down to parts so that it is easier to understand.

My goal:

AlphaGit

public class MySingletonClass {
    private static MySingletonClass _instance;
    
    // private constructor
    private MySingletonClass() { }
    
    // public accessor property that instantiates if needed
    public static Instance => _instance ?? (_instance = new MySingletonClass());
}