akm

package main

import (
	"fmt"

	"github.com/friendsofgo/errors"
)

func main() {
	err := foo1()

akm

// Use go playground or https://github.com/traefik/yaegi to try

  func foo(v int) (rerr error) {
		if v%3 == 1 {
			defer func() {
				rerr = fmt.Errorf("error %d mod 3 => 1: overwrite", v)
			}()
		} else if v%3 == 2 {
			defer func() {
				err := fmt.Errorf("error %d mod 3 => 2: set error if nil", v)

akm

# https://golangci-lint.run/usage/configuration/
run:
  timeout: 5m

linters-settings:
  govet:
    settings:
      unusedresult:
        funcs:
          - github.com/akm/repo1/path/to/package1.Function1

akm

package main

// This is my first go program written in Dec 22nd, 2016

import (
	"fmt"
	"sync"
)

type Fetcher interface {

akm

ARGV.each do |keyword|
  image_family_names = `docker search #{keyword} --format '{{.Name}}'`.split("\n")
  puts( (["image family names:"] + image_family_names).join("\n") )
  image_family_names.each do |image_family_name|
    tags = `curl -s https://registry.hub.docker.com/v1/repositories/#{image_family_name}/tags | jq -r '.[].name'`.split("\n")
    puts("#{image_family_name} tags: #{tags.join(',')}")
    tags.each do |tag|
      image_name = image_family_name + ':' + tag
      file_name = image_family_name.gsub('/', '-') + '-' + tag + '.tar.gz'
      if File.exist?(file_name)

akm

module Bar
  def bar
    "bar"
  end
end

class Foo
  include Bar
end

akm

class Prcss
  attr_accessor :pid, :ppid, :command
  attr_reader :done

  def initialize(pid, ppid, command)
    @pid = pid.to_i
    @ppid = ppid.to_i
    @command = command
  end

akm

require 'benchmark'

n = 50_000
Benchmark.bm do |x|
  x.report { n.times{ I18n.t('controller.acquisitions.cancel_execution') } }
  x.report { n.times{ I18n.t(:cancel_execution, scope: 'controller.acquisitions') } }
  x.report { n.times{ I18n.t(:cancel_execution, scope: "controller.acquisitions") } }
  x.report { n.times{ I18n.t(:cancel_execution, scope: [:controller, :acquisitions]) } }
end

akm

# Usage:
# $ GCP_PROJECT=... ruby update-fwrules4appsscript.rb
#
# See https://cloud.google.com/appengine/kb/#static-ip
APP_ENGINE_IP_RANGE = (8000...9000)

def run(cmd)
  puts cmd
  raise "Failed to #{cmd}" unless system(cmd)
end

akm

# Summarize JSON structure
# cat source.json | ruby sum_json.rb --key-pattern '\A\-|\-test\z' --format json

require 'json'
require 'yaml'

require 'getoptlong.rb'
parser = GetoptLong.new
parser.set_options(
  ['--key-pattern', '-k', GetoptLong::OPTIONAL_ARGUMENT],