dab

• Create images in any color
• Convert image filetypes
• Resize images

node usage

npm install @s9a/dab

const dab = require("@s9a/dab")

dab(deets, callback=dab.terse)

deets

properties

• from is a filename or color format
  • Default is "#dab"
  • Supports png gif tif jpg webp svg
  • Supports hexes and named colors or rgb hsl with commas
• to is the filename to save to
  • Default is like [from]_[shape].png
  • Supports png tif jpg webp
• shape is desired dimensions in pixels
  • Supports wtb formats
  • Default is 960 aka "960" aka "960x960" aka [960, 960]

create png from color

dab({
  from: "#bae",
  to: "bae.png",
  shape: "1280x640",
})

convert jpg to webp

dab({
  from: "foto.jpg",
  to: "foto.webp",
  shape: "1280x640",
})

callback

• callback may be custom or preset
• callback defaults to dab.terse

dab({})

dab({}, dab.verbose)

dab({}, (err, did) => {
  if (err) throw err
  console.log(did)
})

callback presets

• dab.verbose verbose info
• dab.terse terse info
• dab.quiet only warnings or errors
• dab.silent nothing

CLI

syntax

dab [from] [to] [shape]

• supports the same properties as the node syntax
• from can be a filename or color format
• to can be a filename
• shape Dimension syntax is widthxheight or just width for square

hexes

• Good: "#000" '#000' \#000 "rgb(0, 0, 0)" "black" 'black' black
• Fails: #000 rgb(0, 0, 0)
• CLI sees # as comment if seen without quotes or backslash
• CLI honors alphabet hexes like #bed as bed as shorthand but not like b3d

flags

• --help
• --silent
• --quiet
• --terse default
• --verbose

node npm npx

node installers provide node npm npx

versions are checkable via your command line

node -v
npm -v
npx -v

CLI examples

• temporary
• project
• clone
• global

temporary

• npx lets you dab on the fly with the scoped package name @s9a/dab
• Easy way to try dab without saving the package

npx @s9a/dab "#dab" dab.png 1280
npx @s9a/dab "#dab" dab.png 1280x640
npx @s9a/dab "lime" 1280
npx @s9a/dab "lime" 1280x640
npx @s9a/dab "rgb(0, 255, 0)" 1280x640

project

• You can save @s9a/dab as a project dependency
• Recommended when you wanna dab in a project
• First create package.json via npm init or manually

npm install @s9a/dab

npx dab "#dab" dab.png 1280
npx dab "#dab" dab.png 1280x640
npx dab "lime" 1280
npx dab "lime" 1280x640
npx dab "rgb(0, 255, 0)" 1280x640

clone

• Cloning the repo is another way to dab
• This’ll create a folder where you can dab

git clone git@github.com:s9a/dab.git #team
git clone https://github.com/s9a/dab.git #guest
cd dab
npm install
npm test

npx . "#dab" dab.png 1280
npx . "#dab" dab.png 1280x640
npx . "lime" 1280
npx . "lime" 1280x640
npx . "rgb(0, 255, 0)" 1280x640

global

• This is how to install dab as global command
• Recommended when you wanna dab anywhere and have access
• May need --unsafe-perm to build dependencies

npm install @s9a/dab --global #admin
sudo npm install @s9a/dab --global #user

dab "#dab" dab.png 1280
dab "#dab" dab.png 1280x640
dab "lime" 1280
dab "lime" 1280x640
dab "rgb(0, 255, 0)" 1280x640

uninstall whenever

npm uninstall @s9a/dab --global

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