todgru

Peer Review

One of the ways I've grown as programmer is by applying suggestions given to me in peer reviews. I've often learned more by feedback given in these reviews than any google or stackoverflow search could have taught.

Unless there is a misunderstanding of the intent of the code, most of the time, the suggestions should be taken to heart. The suggestions are made to help support future maintenance, make the code easier to understand, and almost always a general improvement to the final product. It is very, very rare for a suggestion to be made based purely on an arbitrary point of view made solely for the sake of commenting.

When suggestions are made for changes to my work, it provides me an opportunity to take a second look at my work and attempt to make the work better. Often times, these suggestions are usable in any future work I do. Now the reviewer doesn't need to continue to make the same suggestions with each review. This makes their job much easier - and mine to - because I no longer get

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merge, squash, all commits of the feature-branch into the current branch.

git merge --squash feature-branch
git commit

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Postgres ON CONFLICT conflict_target index_expression

https://www.postgresql.org/docs/9.6/sql-insert.html#SQL-ON-CONFLICT

On my new_users table, I have a unique index on email and account where the deleted_at value is null. This allows only one combination of email and account for any row where deleted_at is null.

I want to move those old_user rows to a new_users table, but since the old_users table may have duplicate account/email combinations, I want to ignore them.

This query will essentially "upsert" the data from old_users to new_users. If there are any violation of the unique index for a particular row, that row will be ignored.

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Create Raspberry Pi Image using a Raspberry Pi

My 2019 Macbook Pro w/Catalina 10.15.6 will not write to micro sd cards with any of the adapters I have available. They appear as "read only". OSX Disk Utility app will not format the SD cards. Error is Couldn't modify partition map. : (-69874)

To get around this, I used a Raspberry Pi to download the image and write it to the micro SD card.

I used a usb micro SD card reader from Canakit https://www.canakit.com/mini-micro-sd-usb-reader.html. I inserted the USB/SD reader after the Pi booted.

For this example, I'm using an Ubuntu image. This will likely work for other Raspberry Pi images.

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#!/bin/bash
#
# ./newrepo.sh <repo-name>
#
cd /volume1/homes/<username>/git-repos
git --bare init "$1".git
cd "$1".git
git update-server-info

todgru

Transparent Git Encryption

This document has been modified from its [original format][m1], which was written by Ning Shang (geek@cerias.net). It has been updated and reformatted into a [Markdown][m2] document by [Woody Gilk][m3] and [republished][m4].

Description

When working with a remote git repository which is hosted on a third-party storage server, data confidentiality sometimes becomes

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At Namecheap, in the domains advanced dns settings, add A records and CNAME record. The CNAME will allow the www.example.com to be redirected to the apex domain, example.com.

• A record, host: @ value: 185.199.108.153
• A record, host: @ value: 185.199.109.153
• A record, host: @ value: 185.199.110.153
• A record, host: @ value: 185.199.111.153
• CNAME record, host: www value: example-username.github.io

At Github, repo settings, set custom domain to example.com, check "Enforce HTTPS".

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todgru

Pi-Star Notes

Raspberry Pi-Star

• username admin password raspberry
• tail logs on pi-star to discover room numbers/relationships

General information about rooms

• discussion about room, reflectors and id lists: https://forum.pistar.uk/viewtopic.php?f=6&t=313&sid=441d913a3ea14f169a30a733967f5def

Networks and "rooms"

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/**
 * The behaves the same as the lodash version https://www.npmjs.com/package/lodash.get
 *
 * Source: https://github.com/you-dont-need/You-Dont-Need-Lodash-Underscore#_get
 */
const get = (obj, path, defaultValue = undefined) => {
  const travel = regexp =>
    String.prototype.split
      .call(path, regexp)
      .filter(Boolean)