posts-go/posts/2023-07-01-pastebin.md

Throw away pastebin

Just a place to throw away some text.

macOS

Never sleep:

caffeinate -u -t 3600
caffeinate -i

Use Touch ID in Terminal:

sudo cp /etc/pam.d/sudo_local.template /etc/pam.d/sudo_local

# Uncomment last line
sudo nano /etc/pam.d/sudo_local

Hide Developer in Spotlight:

cd /Applications
touch Xcode.app

# Xcode mini version
xcode-select --install

Reset launchpad:

defaults write com.apple.dock ResetLaunchPad -bool true; killall Dock

Reduce padding in menu bar (Log out then log in to apply):

defaults -currentHost write -globalDomain NSStatusItemSelectionPadding -int 6
defaults -currentHost write -globalDomain NSStatusItemSpacing -int 6

Tweak Finder:

# Use list view
defaults write com.apple.finder FXPreferredViewStyle -string "Nlsv"
# Show path bar
defaults write com.apple.finder ShowPathbar -bool true
# Show status bar
defaults write com.apple.finder ShowStatusBar -bool true
# Show filename extensions
defaults write NSGlobalDomain AppleShowAllExtensions -bool true
# Keep folders on top when sorting by name
defaults write com.apple.finder _FXSortFoldersFirst -bool true

killall Finder

Disable IPv6:

sudo networksetup -listallnetworkservices
sudo networksetup -setv6off Wi-Fi

Clean up leftover data:

/Library/Application Support
/Library/LaunchAgents
/Library/LaunchDaemons
/Library/Preferences
/Users/Shared
~/Library/Application Support
~/Library/Fonts (Removed)
~/Library/LaunchAgents
~/Library/Preferences

Clean up leftover shell:

/etc/bashrc
/etc/profile
/etc/zshrc
/etc/paths.d

Clean up clipboard:

pbcopy < /dev/null

Disable Smart zoom in Track pad settings to make right click instant

Fix OpenVPN Client 3

sudo launchctl unload -w /Library/LaunchDaemons/org.openvpn.client.plist
sudo launchctl load -w /Library/LaunchDaemons/org.openvpn.client.plist

Bluetooth stutter:

sudo rm /Library/Preferences/com.apple.Bluetooth.plist
sudo pkill bluetoothd

Thanks:

• Can Touch ID on Mac authenticate sudo in Terminal?
• Native fix for applications hiding under the MacBook Pro notch
  • Can the spacing of menu bar apps be modified in macOS Big Sur and later?
• macOS: How to Disable IPv6
• How to fully uninstall Logitech G HUB on macOS via terminal/command line
• Hardening macOS
  • https://github.com/drduh/macOS-Security-and-Privacy-Guide
• Mac Setup
• https://github.com/OpenVPN/openvpn3/issues/243
• https://stackoverflow.com/q/15872666
• Reclaiming storage/space from 'System Data' in macOS: A tutorial on understanding the System Data usage
• Upgrading Homebrew and avoiding the failed to verify attestation error

Firefox

about:config:

• Disable unused features:

  • extensions.pocket.enabled: false
  • identity.fxaccounts.enabled: false
  • reader.parse-on-load.enabled: false

• Good settings:

  • media.videocontrols.picture-in-picture.video-toggle.always-show: true
  • network.IDN_show_punycode: true
  • browser.tabs.insertAfterCurrent: true

• Encrypted Client Hello (ECH):

  • network.dns.echconfig.enabled: true
  • network.dns.use_https_rr_as_altsvc: true

• Experiment

  • image.jxl.enabled: true

Thanks:

• My list of useful command line tools
• Useful Customizations for Firefox
• Encrypted Client Hello: the future of ESNI in Firefox
• Phishing with Unicode Domains
• https://sizeof.cat/links/

.gitignore

# macOS
.DS_Store

# Window
*.exe

# IntelliJ
.idea

# VSCode
.vscode

# Go
coverage.out
vendor

# GoReleaser
dist

GitHub Actions

dependabot.yml:

version: 2
updates:
  - package-ecosystem: "gomod"
    directory: "/"
    schedule:
      interval: "daily"
  - package-ecosystem: "github-actions"
    directory: "/"
    schedule:
      interval: "daily"

go.yml:

name: Go

on:
  push:
    branches:
      - main
    paths:
      - "**.go"
      - "go.mod"
      - "go.sum"
  pull_request:
    branches:
      - main
    paths:
      - "**.go"
      - "go.mod"
      - "go.sum"

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  test:
    name: Test
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - uses: actions/setup-go@v4
        with:
          go-version: "stable"
      - run: go test -race -failfast ./...
  build:
    name: Build
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        os: [ubuntu-latest, macos-latest, windows-latest]
    steps:
      - uses: actions/checkout@v3
      - uses: actions/setup-go@v4
        with:
          go-version: "stable"
      - run: go build .
  golangci-lint:
    name: golangci-lint
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
        with:
          fetch-depth: 0
      - uses: actions/setup-go@v4
        with:
          go-version: "stable"
      - uses: golangci/golangci-lint-action@v3
        with:
          version: latest

Go

.golangci.yml:

run:
  timeout: 5m
  tests: false

output:
  sort-results: true

linters:
  disable-all: true
  enable:
    # Default
    - errcheck
    - gosimple
    - govet
    - ineffassign
    - staticcheck
    - typecheck
    - unused
    # Custom
    - err113
    - errchkjson
    - errname
    - errorlint
    - forcetypeassert
    - gocritic
    - gofumpt
    - gosec
    - importas
    - makezero
    - nilnil
    - noctx
    - prealloc
    - reassign
    - sqlclosecheck
    - unconvert
  fast: true

linters-settings:
  # Default
  govet:
    check-shadowing: false
    disable-all: true
    enable:
      - assign
      - atomic
      - bools
      - buildtag
      - composites
      - copylocks
      - fieldalignment
      - httpresponse
      - loopclosure
      - lostcancel
      - nilfunc
      - printf
      - unmarshal
      - unreachable
      - unusedresult
  staticcheck:
    checks: ["all", "-SA1019"]
  # Custom
  gocritic:
    disabled-checks:
      - ifElseChain
      - singleCaseSwitch
      - unnamedResult
      - whyNoLint
    enabled-tags:
      - diagnostic
      - style
  gosec:
    excludes:
      - G101
      - G112
      - G115
      - G204
      - G402
      - G404
      - G501
      - G505
    exclude-generated: true
  reassign:
    patterns:
      - ".*"

issues:
  exclude-dirs:
    - ".*test.*"
    - ".*mock.*"
    - ".*example.*"
    - ".*utils.*"
  exclude-files:
    - ".*Mock.*"
    - ".*_mock.*"

.goreleaser.yml:

before:
  hooks:
    - go mod tidy
builds:
  - main: .
    goos:
      - linux
      - windows
      - darwin
    goarch:
      - amd64
      - arm64
universal_binaries:
  - replace: true
archives:
  - format_overrides:
      - goos: windows
        format: zip
changelog:
  skip: false
  use: github

ssh config

Edit ~/.ssh/config

Host *
    IdentitiesOnly yes
    UseKeychain yes

Thanks:

• OpenSSH client side key management for better privacy and security
• Git keeps asking me for my ssh key passphrase
  • OpenSSH updates in macOS 10.12.2

git clean up

# Delete untracked
git clean -fdx

git gc

Delete .DS_Store

With find:

find . -name ".DS_Store" -print -type f -delete

With fd:

fd -H '^\.DS_Store$' -tf -X rm

sd

Remove proto options:

sd -F 'import "validate/validate.proto";' '' api/raw/*.proto
sd -F 'import "marshal-zap.proto";' '' api/raw/*.proto
sd -f s '\s\[.*?];' ';' api/raw/*.proto

fdupes

Remove duplicated files:

fdupes -rdN .

rsync

# Result is dst/src
rsync -avzP src dst

# Result is dst/* with * is from src
rsync -avzP src/ dst

Commonly flags:

• -v: verbose
• -z: compress
• -P: enable both --partial, --progress to easily resume after interrupt
• -n: dry run

Be careful flags (need dry run if not sure):

• -u: skip if files in dst is already newer than in src, if you want to sync both ways
• --delete: delete files in dst if not exist in src, useful to sync dst with src

ffmpeg

# -crf: quality, 0 is lossless, more is lower quality
# -an: no audio 
# -c:a aac -b:a 128k: audio codec and bitrate
ffmpeg -i input -c:v libx265 -crf 26 -preset fast -an output.mp4

Links:

• H.265/HEVC Video Encoding Guide

libvips

Convert:

# Add --vips-progress to show progress
vips jxlsave filename.jpg filename.jxl --keep=none
vips jpegsave filename.png filename.jpg --keep=none

# Batch convert (require fd)
fd "jpg|jpeg|png|webp|gif" --exec vips jxlsave {} {.}.jxl --keep=none
fd "jpg|jpeg|png|webp|gif" --exec-batch rm

fd "png|webp|gif" --exec vips jpegsave {} {.}.jpg --keep=none
fd "png|webp|gif" --exec-batch rm

# Rotate
vips rot filename.jxl new_filename.jxl d90

yt-dlp

Download:

yt-dlp -f - "https://www.youtube.com/watch?v=video_id"

F2

Rename:

# If dry run, remove --exec
f2 --replace "{mtime.YYYY}{mtime.MM}{mtime.DD}_{mtime.H}{mtime.mm}{mtime.ss}_{hash.md5}{ext}" --exec

# Include ImageSize (require exiftool)
f2 --replace "{mtime.YYYY}{mtime.MM}{mtime.DD}_{mtime.H}{mtime.mm}{mtime.ss}_{xt.ImageSize}_{hash.md5}{ext}" --exec

# Not include time
f2 --exclude="\d+x\d+_[a-z\d]{32}" --sort=mtime --replace "{xt.ImageSize}_{hash.md5}{ext}" --exec

# Remove space in directory
f2 --find " " --replace "_" --string-mode --only-dir --exec