Useful Scripts

Just a couple useful scripts I find myself needing to pull out of my pocket often.

Get current cookies from browser

console.log(
  JSON.stringify(
    document.cookie
      .split(";")
      .filter((str) => str !== "")
      .map((c) => c.split("="))
      .map(([key = "", value = ""]) => [key.trim(), value.trim()])
      .reduce((acc, [key, value]) => {
        acc[key] = value;
        return acc;
      }, {})
  )
);

Follow logs for multiple pods in K8s

Follow logs streams from multiple pods in kubernetes.

• --max-log-requests => max number of pods to Follow
• -f => follow/stream the log feed
• -l => the label to match on

kubectl logs --max-log-requests 1024 -f -l app=locust

Create release notes from git logs

Auto generate release notes based on git tags and remove any 'merge' commits.

git log $(git describe --tags --abbrev=0)..HEAD --oneline | grep -iv merge

A Debug Deployment for Istio K8s Cluster

# Single pod Ubuntu deployment that will not terminate
# Annotated to allow full Egress traffic when in an Istio mesh
apiVersion: apps/v1
kind: Deployment
metadata:
  name: ubuntu-deployment
  labels:
    app: ubuntu
spec:
  replicas: 1
  selector:
    matchLabels:
      app: ubuntu
  template:
    metadata:
      annotations:
        traffic.sidecar.istio.io/excludeOutboundIPRanges: 0.0.0.0/0 # Allow all Egress traffic https://github.com/istio/istio/issues/9304
      labels:
        app: ubuntu
    spec:
      containers:
        - name: ubuntu
          image: ubuntu:latest
          imagePullPolicy: Always
          command: ["/bin/bash", "-c", "--"]
          args: ["while true; do sleep 30; done;"]

Generate JSON Report of GitHub project board state

let board = [...document.querySelectorAll(".project-column")].map((column) => {
  return {
    name: column.querySelector(".js-project-column-name").innerHTML,
    cards: [...column.querySelectorAll(`[data-content-type="Issue"]`)].map(
      (card) => {
        const issueEl = card.querySelector(`[data-content-label="issue"]`);
        const issueNumberEl = card.querySelector(".js-issue-number");
        return {
          name: issueEl.innerHTML,
          link:
            issueEl.getAttribute("href") ??
            Error(`unable to prase 'href' from ${issueEl}`),
          issueNumber:
            Number(issueNumberEl.innerHTML.slice(1)) ||
            Error(`unable to parse Number() from ${issueNumberEl}`),
        };
      }
    ),
  };
});

console.log(JSON.stringify(board, null, 2));

Remove Wix Ads

probably against EULA :P

const removeAdsByJS = () =>
  Promise.all([
    document.querySelector("#WIX_ADS"),
    document.querySelector("#SITE_BACKGROUND"),
    document.querySelector("#SITE_ROOT"),
  ]).then(([wixBanner, background, root]) => {
    wixBanner.parentElement.removeChild(wixBanner);
    background.style.top = 0;
    root.style.top = 0;
  });

const removeByCSS = () => {
  const wixAdsRemovalStyles = `
  #WIX_ADS {
    display: none !important;
  }

  #SITE_BACKGROUND {
    top: 0;
  }

  #SITE_ROOT {
    top: 0;
  }`;
  const head = document.head;
  const style = document.createElement("style");
  head.appendChild(style);
  style.type = "text/css";
  style.appendChild(document.createTextNode(wixAdsRemovalStyles));
};

Scrape an entire website

wget --recursive --adjust-extension --page-requisites --convert-links https://www.evanlouie.com

wget \
     --recursive \
     --no-clobber \
     --page-requisites \
     --html-extension \
     --convert-links \
     --restrict-file-names=windows \
     --domains website.org \
     --no-parent \
         www.website.com

Generate user story report from VSTS window

Generate User Story report for whichever user stories are on screen in VSTS. Requires "Assigned To" to be on screen.

JSON.stringify(
  Array.from(document.querySelectorAll(".grid-row"))
    .map((row) => {
      const workItemEl = row.querySelector<HTMLAnchorElement>(
        ".work-item-title-link"
      );
      const ownerEl = row.querySelector<HTMLSpanElement>(
        ".identity-picker-resolved-name"
      );
      const itemNumberMatch =
        workItemEl && workItemEl.href && workItemEl.href.match(/\/(\d+)$/i);

      return {
        itemNumber: itemNumberMatch ? itemNumberMatch[1] : -1,
        href: workItemEl ? workItemEl.href : "Work item not found",
        text: workItemEl ? workItemEl.text : "Work item not found",
        owner: ownerEl ? ownerEl.innerText : "No owner found",
      };
    })
    .reduce<{ activeLearning: any[]; fox: any[] }>(
      (carry, row) => {
        const { owner, itemNumber, text, href } = row;
        const entry = `[${itemNumber}] ${text}`;
        return [/evan/i, /nath/i, /yvon/i].findIndex(
          (regex) => !!owner.match(regex)
        ) >= 0
          ? { ...carry, fox: [...carry.fox, entry] }
          : { ...carry, activeLearning: [...carry.activeLearning, entry] };
      },
      { activeLearning: [], fox: [] }
    )
);

Pyenv on Mojave

zlib headers aren't available by default: https://github.com/pyenv/pyenv/issues/1219

CFLAGS="-I$(xcrun --show-sdk-path)/usr/include" pyenv install 3.5.6