richmondwang

There are certain files created by particular editors, IDEs, operating systems, etc., that do not belong in a repository. But adding system-specific files to the repo's .gitignore is considered a poor practice. This file should only exclude files and directories that are a part of the package that should not be versioned (such as the node_modules directory) as well as files that are generated (and regenerated) as artifacts of a build process.

All other files should be in your own global gitignore file. Create a file called .gitignore in your home directory and add anything you want to ignore. You then need to tell git where your global gitignore file is.

Mac

git config --global core.excludesfile ~/.gitignore

Windows

git config --global core.excludesfile %USERPROFILE%\.gitignore

richmondwang

# Add field
echo '{"hello": "world"}' | jq --arg foo bar '. + {foo: $foo}'
# {
#   "hello": "world",
#   "foo": "bar"
# }

# Override field value
echo '{"hello": "world"}' | jq --arg foo bar '. + {hello: $foo}'
{

richmondwang

package main

import (
	"golang.org/x/net/context"
	"github.com/docker/docker/api/types"
	"github.com/docker/docker/api/types/container"
	"github.com/docker/docker/api/types/network"
	"github.com/docker/docker/cli/command"
	"github.com/docker/docker/client"
	"fmt"

richmondwang

package main

import (
  "fmt"
  "reflect"
)

// Name of the struct tag used in examples
const tagName = "validate"

richmondwang

Get index sizes of all collections in db

db.getCollectionNames().map(name => ({totalIndexSize: db.getCollection(name).stats().totalIndexSize, name: name})).sort((a, b) => a.totalIndexSize - b.totalIndexSize).forEach(printjson)

Memory stats

db.serverStatus().tcmalloc.tcmalloc.formattedString

Login to repl member with keyfile

richmondwang

kubectl -n kube-system create sa tiller
kubectl create clusterrolebinding tiller --clusterrole cluster-admin --serviceaccount=kube-system:tiller
helm init --service-account tiller

richmondwang

from celery import Task
from flask import has_request_context, make_response, request

from myapp import app


__all__ = ['RequestContextTask']


class RequestContextTask(Task):

richmondwang

# Make mouse useful
# Toggle mouse on
bind m \
  set -g mouse on \;\
  display 'Mouse mode: ON'

# Toggle mouse off
bind M \
  set -g mouse off \;\
  display 'Mouse mode: OFF'

richmondwang

# -*- coding: utf-8 -*-
from inflection import underscore
from sqlalchemy import inspect
from sqlalchemy.orm import RelationshipProperty, joinedload, load_only


class RelationshipPathNode(object):
    def __init__(self, value, parent=None):
        if parent:
            parent.isLeaf = False

richmondwang

# -*- coding: utf-8 -*-
import datetime

import graphene
from graphene.types.datetime import DateTime


class FormattedDateTime(DateTime):
    """
    This is a custom Scalar type. This DateTime Scalar can be formatted into