⚡ fastgmad

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An extremely fast reimplementation of gmad.exe and gmpublish.exe.

Prefer to use a GUI? Check out gmpublisher!

Features

• Up to x100 faster than gmad.exe
• Publish/update Workshop addons without creating a .GMA
• Create, extract and publish GMAs all in one tool
• Upload addon icons in PNG, JPG or even GIF format
• Drop-in replacement for gmad.exe and gmpublish.exe - usage is identical
• Publish without specifying an icon if you're feeling lazy
• -stdin and -stdout support for piping data between tools

Requirements

Windows, macOS or Linux

Usage

https://wiki.facepunch.com/gmod/Workshop_Addon_Creation
https://wiki.facepunch.com/gmod/Workshop_Addon_Updating

Drag & Drop
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Drag & drop a .gma onto fastgmad to extract it
Drag & drop a folder onto fastgmad to convert it to .gma

Creating GMAs
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fastgmad create -folder path/to/folder -out path/to/gma.gma
fastgmad create -folder path/to/folder -out path/to/gma.gma
fastgmad create -folder path/to/folder
fastgmad create -folder path/to/folder -stdout

Extracting GMAs
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fastgmad extract -file path/to/gma.gma -out path/to/folder
fastgmad extract -file path/to/gma.gma
fastgmad extract -stdin -out path/to/folder

Publishing GMAs
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>> You can publish .GMAs OR addon directories (a .GMA will be automatically created for you) <<
>> Adding an icon is OPTIONAL for publishing a new Workshop addon. A default icon will be provided for you if you don't add one. <<

Accepted Icon Formats: JPG, PNG, GIF
Icon Max Size: 1 MB
Recommended Icon Dimensions: 512x512

fastgmad publish -addon path/to/addon -icon path/to/icon
fastgmad update -id 1337 -addon path/to/addon
fastgmad update -id 1337 -addon path/to/addon -icon path/to/icon
fastgmad update -id 1337 -addon path/to/addon -changes "fixed something"
fastgmad update -id 1337 -addon path/to/addon -changes "fixed something" -icon path/to/icon

Additional flags
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-max-io-threads <integer> - The maximum number of threads to use for reading and writing files. Defaults to the number of logical cores on the system.
-max-io-memory-usage <integer> - The maximum amount of memory to use for reading and writing files in parallel. Defaults to 2 GiB.
-warninvalid - Warns rather than errors if the GMA contains invalid files. Off by default.
-noprogress - Turns off progress bars.

Notes
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- CRC checking and computation is not a feature. Implementing this would slow down the program for no benefit and it is virtually unused and redundant in Garry's Mod.