Principal Software Engineer/Architect, motorcyclist, drummer, and artist
I have considered quitting Amazon over the past few years, however Jeff Bezos recently kowtowing to Trump was the last straw.
Will it end up costing me more money to purchase some items and will it take longer for me to get them? For sure, but I am willing to live with that.
The first thing that I wanted to do was to get my purchase history. Often time, I will search through it to remember something that I bought → Continue reading “How to quit Amazon”
jq is pure awesomeness. If every you want to “grep” through JSON data on the command line, this is the tool for you. Unfortunately, I don’t use it everyday, so when I do go to use it I forget the details for doing some basic operations.
[
{
"name": "Homer Simpson",
"occupation": "Nuclear Safety Inspector"
},
{
"name": "Marge Simpson",
"occupation": "Mayor"
},
{
"name": "Milhouse Van Houten",
"occupation": "Student"
},
{
"name": "Homeboy Van Somebody",
"occupation": "Lawyer"
This is a recipe by Samantha Seneviratne.
dpkg -s docker-ce | grep Version apt-cache madison <package>Run the following command replacing the package in question
apt-get --with-new-pkgs upgrade <package-nameTry the following, in order. Each is less risky than the next. Stop as soon as you have fixed the problem.
apt-get --with-new-pkgs upgrade <list of packages kept backThere are times when you need to cherry-pick a commit from another branch. Then there are times when you only need parts of that commit.
Following is how you can partly cherry-pick a commit to get only the changes that you need.
Get the patch for the entire commit. Include the -n for no commit so that it does not add it as a commit to your branch
git cherry-pick -n <commitThen unstage the the changes from the cherry-picked → Continue reading “How to partially cherry-pick a commit in git”
If you wait until your bananas are sufficiently over-ripe they will have enough sugar that you don’t have to add much at all and it makes for a much healthier bread.
You can make a double batch, cut up and freeze and it will stay fresh a very long time. Simply remove a piece from the freezer and microwave on high for 45 seconds to a minute and it will taste like it just came out of the oven.
It is common to write go text/templates that range over a slice of objects to write out a list or array of items that are separated by some delimiter defined in the template.
In the case of a JSON array of objects, the cleanest output would be a , separating each object without a leading or trailing comma.
Because go template if statements are falsey in that a 0 value will evaluate to false you can write a template as → Continue reading “Go template that properly renders delimiters for a slice of structs”
The following is an example showing how to query multiple nested arrays in JSON data in a PostgreSQL database.
Given
CREATE TABLE sample_json (
id serial PRIMARY KEY,
name varchar(64),
json_data json
);
INSERT INTO sample_json (name, json_data)
VALUES
(
'NA',
'
{
"location": "US",
"topLevelArray": [
{
"id": 1,
"secondLevelArray": [
{
"key": "someKey",
"operator": "=",
"value": 10
},
{
"key": "foo",
"operator": ">=",
"value": 5
},
{
"key": "someOtherKey",
"operator": ">",
"value": 647
}
]
},
{
"id":