KEINOS

#!/bin/bash

# --------------------------------------------------------------------------------------------
# Installs Ruby 2.6.8 using rbenv/ruby-build on the Raspberry Pi OS
#
# Run from the web:
#   bash <(curl -sL https://gist.github.com/KEINOS/7101f542be23e5048198e2a27c3cfda8/raw/install_ruby_rpi.sh)
# --------------------------------------------------------------------------------------------

# Welcome message

KEINOS

// To see how to use this gist: https://go.dev/play/p/3W-F9T113d_f @ Go Playground
// Ref: https://qiita.com/mattn/items/6cad7b5dd73092b3d354 by @mattn @ Qiita
package nurupo

import (
    "errors"
    "strings"
)

// Nurupo returns an error if the message contains "ぬるぽ".

KEINOS

[Golang] How to convert a zero-padded decimal string to an integer?

Converting decimal string with leading zeros to integer

str "000123" --> int 123

To trim a zero-padded decimal string and convert it to integer as shown above, simply use strconv.Atoi() function.

KEINOS

ssh_authorized_keys:
- "ssh-rsa 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"
hostname: k3os-server-keinos01
write_files:
- content: |
    nameserver 8.8.8.8
    nameserver 8.8.4.4
  owner: root:root
  path: /etc/resolv.conf
  permissions: '0644'

KEINOS

[Golang] How to get the version of imported non-standard module from main

tl; dr

Use debug.ReadBuildInfo() of "runtime/debug" module.

ts; dr

This is an example to get the version of "golang.org/x/xerrors" package from the main source code.

KEINOS

「"golang" test "os.Stdin" "keinos"」でググってもヒットしなかったので、自分のググラビリティとして。

[Golang] How to mock/mimic os.Stdin during the test in Go

In the dependency injection point of view, it is a good practice to var OsStdin = os.Stdin and use OsStdin instead of os.Stdin. Then monkey patch (temporary replace) the variable during the test.

But if the external package doesn't support that OsStdin alias feature, and uses os.Stdin, we need to mock the os.Stdin some how.

KEINOS

[Golang] How To Replace All Whitespaces Into a Single Space in Go

Trimming/replacing repeated whitespaces such as space, tab, line-breaks, etc as one space.

Something like " foo\n\t\t bar\n buzz" to "foo bar buzz". But without using regex nor multiple strings.Replace().

TL; DR

Use strings.Fiels() and join them.

KEINOS

[Golang] How To Suppress/Hide Error/INFO Messages In Badger DB

TL; DR

Set Logger field of badger.Options object to nil

pathDirDB := GetMyPathDirDB()
optionsDB := badger.DefaultOptions(pathDirDB)
if !IsModeDebug {

KEINOS

#!/bin/bash

name_file_coverage='coverage.out'

# getNameFilesUncovered echoes file names in comma-separated list which didn't
# cover 100%. This will be used for “go-carpet` -file option.
function getNameFilesUncovered() {
    list=$(go tool cover -func="$name_file_coverage" | grep -v '100.0%\|init\|total' | awk '{print $1}')
    echo "$list" | while IFS= read -r line; do
        basename "${line}" | sed -e 's/\.[^\.]*$/\.go/'

KEINOS

# docker-compose.yml for WordPress 5.5 + PHP 7.4.9, Apache 2.4.38
#
# - Download URL: https://git.io/JJ5Vu
# - How to run servers:
#     $ php -r 'copy("https://git.io/JJ5Vu", "./docker-compose.yml");'
#     $ docker-compose up -d
# - How to access:
#     - Open browser: http://localhost:8989/
# - Ref: https://www.youtube.com/watch?v=pYhLEV-sRpY @ Youtube
version: '3'