Zhennan LI nanmu42

## fileserver.go
package main

import (
	"flag"
	"fmt"
	"net"
	"net/http"
)

var (

## vue.config.js
const CompressionPlugin = require("compression-webpack-plugin");
const fileToCompressRegex = /\.(js|css|htm|html|svg|png|txt|json|wasm)$/
const productionMode = process.env.NODE_ENV === 'production'

let plugins = []
if (productionMode) {
    plugins.push(new CompressionPlugin({
        filename: '[path][base].br[query]',
        algorithm: 'brotliCompress',
        test: fileToCompressRegex,

## remove_slice_duplicates.go
// source: https://www.reddit.com/r/golang/comments/5ia523/idiomatic_way_to_remove_duplicates_in_a_slice/db6qa2e/
func SliceUniqMap(s []int) []int {
	seen := make(map[int]struct{}, len(s))
	j := 0
	for _, v := range s {
		if _, ok := seen[v]; ok {
			continue
		}
		seen[v] = struct{}{}
		s[j] = v

## detect-touchscreen.js
function isTouchDevice() {
  return 'ontouchstart' in window
}

## awk.sh
# unique line
awk '{!seen[$0]++};END{for(i in seen) if(seen[i]==1)print i}' file

# second column of a csv, with white spaces and quotes stripped
awk -F',' '{gsub(/[ "]/, "", $0);print $2}' some.csv > dest.txt

## delete-k3s.md

      
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                nanmu42
                / delete-k3s.md
            
            
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              February 1, 2020 04:57
            
              
                K3S Jumpstart
              
          
    Run /usr/local/bin/k3s-uninstall.sh

  
## eck.yml
apiVersion: elasticsearch.k8s.elastic.co/v1beta1
kind: Elasticsearch
metadata:
  namespace: elastic-system
  name: logging-eck
spec:
  version: 7.4.2
  nodeSets:
  - name: default
    count: 1

## scanner_valuer.go
// QueryParams every key is a query param
type QueryParams map[string]QueryParam

// Scan satisfies SQL scanner interface
func (q *QueryParams) Scan(src interface{}) error {
	b, ok := src.([]byte)
	if !ok {
		return errors.New("type assertion to []byte failed")
	}

## check_cert_valid_date.sh
echo | openssl s_client -servername www.github.com -connect www.github.com:443 2>/dev/null | openssl x509 -noout -dates

## geoOffset.go
// geoOffset 计算从 (lon0, lat0) 经纬度（单位 °）移动 dx, dy 米后的新的经纬度
//
// 这个算法在100km以内有良好精度。
//
// source: https://stackoverflow.com/questions/2839533/adding-distance-to-a-gps-coordinate
func geoOffset(lon0, lat0, dx, dy float64) (lon, lat float64) {
  lon = lon0 + (180/math.Pi)*(dx/6378137)/math.Cos(lat0/180*math.Pi)
  lat = lat0 + (180/math.Pi)*(dy/6378137)

  return
	const CompressionPlugin = require("compression-webpack-plugin");
	const fileToCompressRegex = /\.(js\|css\|htm\|html\|svg\|png\|txt\|json\|wasm)$/
	const productionMode = process.env.NODE_ENV === 'production'

	let plugins = []
	if (productionMode) {
	plugins.push(new CompressionPlugin({
	filename: '[path][base].br[query]',
	algorithm: 'brotliCompress',
	test: fileToCompressRegex,
	// source: https://www.reddit.com/r/golang/comments/5ia523/idiomatic_way_to_remove_duplicates_in_a_slice/db6qa2e/
	func SliceUniqMap(s []int) []int {
	seen := make(map[int]struct{}, len(s))
	j := 0
	for _, v := range s {
	if _, ok := seen[v]; ok {
	continue
	}
	seen[v] = struct{}{}
	s[j] = v
	# unique line
	awk '{!seen[$0]++};END{for(i in seen) if(seen[i]==1)print i}' file

	# second column of a csv, with white spaces and quotes stripped
	awk -F',' '{gsub(/[ "]/, "", $0);print $2}' some.csv > dest.txt
	apiVersion: elasticsearch.k8s.elastic.co/v1beta1
	kind: Elasticsearch
	metadata:
	namespace: elastic-system
	name: logging-eck
	spec:
	version: 7.4.2
	nodeSets:
	- name: default
	count: 1
	// QueryParams every key is a query param
	type QueryParams map[string]QueryParam

	// Scan satisfies SQL scanner interface
	func (q *QueryParams) Scan(src interface{}) error {
	b, ok := src.([]byte)
	if !ok {
	return errors.New("type assertion to []byte failed")
	}
	// geoOffset 计算从 (lon0, lat0) 经纬度（单位 °）移动 dx, dy 米后的新的经纬度
	//
	// 这个算法在100km以内有良好精度。
	//
	// source: https://stackoverflow.com/questions/2839533/adding-distance-to-a-gps-coordinate
	func geoOffset(lon0, lat0, dx, dy float64) (lon, lat float64) {
	lon = lon0 + (180/math.Pi)(dx/6378137)/math.Cos(lat0/180math.Pi)
	lat = lat0 + (180/math.Pi)*(dy/6378137)

	return