UnityPacker

UnityPacker is a collection of a library and small command line tools that can create, unpack and inspect UnityPackage files without a Unity installation. It is great for automated builds of Unity tools.

Usage is very simple:

./UnityPack *directory to pack* *destination pack name*
./UnityUnpack *pack name* *directory to unpack to*

For example:

./UnityPack . Package

Will produce a Package.unitypackage from the contents current directory recursively in the current directory.

./UnityUnpack Package.unitypackage .

Will unpack the Package.unitypackage to the working directory, with proper directory structure.

• When used with respectMeta option, packer will maintain prefab components and even complete scenes if they are included in the directory.

• It will maintain meta files through packing and unpacking. You can include a meta file generated by unity. If no meta file exists for a file, it will be automatically generated.

• It can omit more using the extensions option.

• It can omit whole directories with the directories option.

• Sizes of the packages exported from Unity itself and UnityPacker are usually the same.

Full usage

./UnityPack . MyAssets Assets/MyAssets "gitignore,md,exe,dll" ".git"

Such a run will create a file called MyAssets.unitypackage with the contents of this directory, omitting files with extensions gitignore, md, exe, dll and the directory .git. When imported by unity, all files will be put in MyAssets folder in project. The path starts from unity project root, so if it doesn't start with Assets/ it won't show up in the editor!

./UnityUnpack MyAssets.unitypackage .

Such a run will extract the contents of the unitypackage with proper directory structure to the working directory.

Was tested on Unity 2017.2.0f3 and 5.5 with packages from both Mac and Linux hosts.