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@rkrzr
rkrzr / auto_tags.py
Last active Dec 20, 2019
Automatically generate ansible tags of the same name for each role in a playbook
View auto_tags.py
"""
This module implements an Ansible plugin that is triggered at the start of a playbook.
The plugin dynamically generates a tag for each role. Each tag has the same name as its role.
The advantage of this is that it saves you some boilerplate, because you don't have to wrap
all tasks of a role in an additional block and assign a tag to that.
Additionally, it works automatically when you add new roles to your playbook.
Usage is exactly the same as without this plugin:
@baetheus
baetheus / cancellableEffectFactory.ts
Last active Oct 29, 2017
A factory function POC for cancellable ngrx effects
View cancellableEffectFactory.ts
import { Action, Effect } from "@ngrx/store";
import { Observable } from "rxjs/Observable";
import { of } from "rxjs/observable/of";
import "rxjs/add/operator/switchMap";
import "rxjs/add/operator/takeUntil";
import "rxjs/add/operator/filter";
import "rxjs/add/operator/map";
// For POC typechecking force payloads on Actions.
export interface CancellableAction<T> extends Action {
@willejs
willejs / README.md
Last active Dec 25, 2019
Moving Concourse Pipelines
View README.md

Moving Concourse Pipelines

Currently concourse does not support moving pipelines between teams via fly CLI. There is an issue for that here

The only way to do this is to make a few changes in the DB.

If you run the statement below you will see that 6 tables have the team_id column.

concourse=> select table_name                                                                                                                                                                                                                                                                                                                                                       from INFORMATION_SCHEMA.COLUMNS                                                                                                                                                                                                                                                                            
@ahmetb
ahmetb / gcrgc.sh
Last active Jan 26, 2020
Script to clean up Google Container Registry images pushed before a particular date
View gcrgc.sh
#!/bin/bash
# Copyright © 2017 Google Inc.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
@jchandra74
jchandra74 / PowerShell Customization.md
Last active Jan 21, 2020
PowerShell, Cmder / ConEmu, Posh-Git, Oh-My-Posh, Powerline Customization
View PowerShell Customization.md

Pimping Up Your PowerShell & Cmder with Posh-Git, Oh-My-Posh, & Powerline Fonts

Backstory (TLDR)

I work as a full-stack developer at work. We are a Windows & Azure shop, so we are using Windows as our development platform, hence this customization.

For my console needs, I am using Cmder which is based on ConEmu with PowerShell as my shell of choice.

Yes, yes, I know nowadays you can use the Linux subsystem on Windows 10 which allow you to run Ubuntu on Windows. If you are looking for customization of the Ubuntu bash shell, check out this article by Scott Hanselman.

@gunjanpatel
gunjanpatel / revert-a-commit.md
Last active Jan 24, 2020
Git HowTo: revert a commit already pushed to a remote repository
View revert-a-commit.md

Revert the full commit

Sometimes you may want to undo a whole commit with all changes. Instead of going through all the changes manually, you can simply tell git to revert a commit, which does not even have to be the last one. Reverting a commit means to create a new commit that undoes all changes that were made in the bad commit. Just like above, the bad commit remains there, but it no longer affects the the current master and any future commits on top of it.

git revert {commit_id}'

About History Rewriting

Delete the last commit

Deleting the last commit is the easiest case. Let's say we have a remote origin with branch master that currently points to commit dd61ab32. We want to remove the top commit. Translated to git terminology, we want to force the master branch of the origin remote repository to the parent of dd61ab32:

@bastman
bastman / docker-cleanup-resources.md
Created Mar 31, 2016
docker cleanup guide: containers, images, volumes, networks
View docker-cleanup-resources.md

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)
$ docker volume ls -qf dangling=true | xargs -r docker volume rm
@demisx
demisx / angularjs-providers-explained.md
Last active Nov 23, 2019
AngularJS Providers: Constant/Value/Service/Factory/Decorator/Provider
View angularjs-providers-explained.md
Provider Singleton Instantiable Configurable
Constant Yes No No
Value Yes No No
Service Yes No No
Factory Yes Yes No
Decorator Yes No? No
Provider Yes Yes Yes

Constant

@christianroman
christianroman / test.py
Created May 30, 2013
Bypass Captcha using 10 lines of code with Python, OpenCV & Tesseract OCR engine
View test.py
import cv2.cv as cv
import tesseract
gray = cv.LoadImage('captcha.jpeg', cv.CV_LOAD_IMAGE_GRAYSCALE)
cv.Threshold(gray, gray, 231, 255, cv.CV_THRESH_BINARY)
api = tesseract.TessBaseAPI()
api.Init(".","eng",tesseract.OEM_DEFAULT)
api.SetVariable("tessedit_char_whitelist", "0123456789abcdefghijklmnopqrstuvwxyz")
api.SetPageSegMode(tesseract.PSM_SINGLE_WORD)
tesseract.SetCvImage(gray,api)
print api.GetUTF8Text()
@pfig
pfig / mkfavicon.sh
Created Feb 12, 2012
Make a multi-resolution favicon.ico from a source image, using ImageMagick
View mkfavicon.sh
#!/bin/bash
# from
# http://bergamini.org/computers/creating-favicon.ico-icon-files-with-imagemagick-convert.html
convert source-WxW.png -resize 256x256 -transparent white favicon-256.png
convert favicon-256.png -resize 16x16 favicon-16.png
convert favicon-256.png -resize 32x32 favicon-32.png
convert favicon-256.png -resize 64x64 favicon-64.png
convert favicon-256.png -resize 128x128 favicon-128.png
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