AtulKsol

1. pg_dump is a nifty utility designed to output a series of SQL statements that describes the schema and data of your database. You can control what goes into your backup by using additional flags.
   Backup: pg_dump -h localhost -p 5432 -U postgres -d mydb > backup.sql

   Restore: psql -h localhost -p 5432 -U postgres -d mydb < backup.sql

   -h is for host.
   -p is for port.
   -U is for username.
   -d is for database.

bowin

const {PassThrough} = require('stream')
const fs = require('fs')

const d = new PassThrough()  

fs.createReadStream('tt2.js').pipe(d)  // can be piped from reaable stream

d.pipe(process.stdout)                 // can pipe to writable stream 
d.on('data', console.log) // also like readable

elpaso

#!/usr/bin/env python

# Simple QGIS 3 Server wsgi test

import signal
import sys
from cgi import escape, parse_qs
from urllib.parse import quote
# Python's bundled WSGI server
from wsgiref.simple_server import make_server

nitanka

---
- name: Creating a Volume
  hosts: localhost
  become: yes
  tasks: 
    - name: Creating a Volume
      ec2_vol:
        aws_access_key: "{{ lookup('env', 'AWS_ACCESS_KEY_ID') }}"
        aws_secret_key: "{{ lookup('env', 'AWS_SECRET_ACCESS_KEY') }}"
        instance: '<instance-id>'

jayphelps

{
  "scripts": {
    "build": "npm run build:es2015 && npm run build:esm && npm run build:cjs && npm run build:umd && npm run build:umd:min",
    "build:es2015": "tsc --module es2015 --target es2015 --outDir dist/es2015",
    "build:esm": "tsc --module es2015 --target es5 --outDir dist/esm",
    "build:cjs": "tsc --module commonjs --target es5 --outDir dist/cjs",
    "build:umd": "rollup dist/esm/index.js --format umd --name YourLibrary --sourceMap --output dist/umd/yourlibrary.js",
    "build:umd:min": "cd dist/umd && uglifyjs --compress --mangle --source-map --screw-ie8 --comments --o yourlibrary.min.js -- yourlibrary.js && gzip yourlibrary.min.js -c > yourlibrary.min.js.gz",
  }
}

tmcw

Documentation.js Direction

Questions:

• Markdown or reST or Asciidoc or Asciidoctor?
  • References: https://internals.rust-lang.org/t/rustdoc-restructuredtext-vs-markdown/356/11 rust-lang/rust#29474
  • Markdown
    • Pros
      • More people know it already
• Lots of good parsers

tmcw

documentation.js direction

I've been meditating on the direction of documentation.js going forward. Here's what I've decided on for now:

ground-up rebuild for modern javascript only

I'm going to rebuild documentation.js from the ground up, using a frontend that relies heavily on Flow annotations, and only supports export/import following. That means:

• CommonJS import/export will no longer be supported
• JSDoc types will no longer be supported

HarryStevens

license: gpl-3.0
height: 700

reywood

How to get a stack trace for each thread in a running python script

Sometimes a python script will simply hang forever with no indication of where things went wrong. Perhaps it's polling a service that will never return a value that allows the program to move forward. Here's a way to see where the program is currently stuck.

Install gdb and pyrasite

Install gdb.

# Redhat, CentOS, etc

Komzpa

Visualize PostGIS index using Gevel in Postgres 9.6:

git clone git://sigaev.ru/gevel
cd gevel
git checkout bd8b8b031a8049a6e7c18c00946bfbd99d75d27f
USE_PGXS=1 make
sudo USE_PGXS=1 make install
psql -f /usr/share/postgresql/9.6/contrib/gevel.sql