67 lines
2.4 KiB
Markdown
67 lines
2.4 KiB
Markdown
# create-dmg [](https://travis-ci.org/sindresorhus/create-dmg)
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> Create a good-looking [DMG](https://en.wikipedia.org/wiki/Apple_Disk_Image) for your macOS app in seconds
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Imagine you have finished a macOS app, exported it from Xcode, and now want to distribute it to users. The most common way of distributing an app outside the Mac App Store is by putting it in a `.dmg` file. These are hard to create, especially good-looking ones. You can either pay for a GUI app where you have to customize an existing design or you can run some homebrewed Bash script and you still have to design it. This tool does everything for you, so you can play with your 🐈 instead.
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<img src="screenshot-cli.gif" width="998">
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Discuss it on [Product Hunt](https://www.producthunt.com/posts/create-dmg) and [Twitter](https://twitter.com/sindresorhus/status/846416556754010112).
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*This tool is intentionally opinionated and simple. I'm not interested in adding lots of options.*
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You might also find my [`LaunchAtLogin`](https://github.com/sindresorhus/LaunchAtLogin) project useful.
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## Install
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Ensure you have [Node.js](https://nodejs.org) 8 or later installed. Then run the following:
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```
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$ npm install --global create-dmg
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```
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## Usage
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```
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$ create-dmg --help
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Usage
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$ create-dmg <app> [destination]
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Options
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--overwrite Overwrite existing DMG with the same name
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--identity=<value> Manually set code signing identity (automatic by default)
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--dmg-title=<value> Manually set title of DMG volume (only used if app name is >27 character limit)
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Examples
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$ create-dmg 'Lungo.app'
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$ create-dmg 'Lungo.app' Build/Releases
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```
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## DMG
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The DMG requires macOS 10.11 or later and has the filename `App Name 0.0.0.dmg`, for example `Lungo 1.0.0.dmg`.
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It will try to code sign the DMG, but the DMG is still created and fine even if the code signing fails, for example if you don't have a developer certificate.
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<img src="screenshot-dmg.png" width="772">
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### DMG Icon
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[GraphicsMagick](http://www.graphicsmagick.org) is required to create the custom DMG icon that's based on the app icon and the macOS mounted device icon.
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#### Steps using Homebrew
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```
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$ brew install graphicsmagick imagemagick
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```
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#### Icon Example
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Original icon → DMG icon
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<img src="icon-example-app.png" width="300"><img src="icon-example.png" width="300">
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