Scripting Defines

Reads and writes PlayerSettings scripting define symbols per named build target group.

Editor-only. Unity 2021.3+. Lives in Rivet.Editor (includePlatforms: Editor). No extra packages.

Editor window

ArTchie / Rivet / Scripting Defines

Control	What it does
Standalone / Android / iOS / WebGL	Text area of ;-separated (or newline / comma) defines for that BuildTargetGroup. A group is omitted if the enum value does not exist.
EditorUser (read-only)	EditorUserBuildSettings.activeScriptCompilationDefines — what the Editor is compiling with now.
Reload	Re-reads PlayerSettings into the text areas.
Apply	Writes every editable group immediately. Undo is not available (confirmed in the status line). A domain reload / recompile follows.
Copy JSON	Puts the dump JSON on the clipboard.
Write report	Writes <project>/RivetReports/scripting-defines.json (creates the folder if needed).

Batchmode (CI)

Default is a dump only. Mutation happens only when both group and defines args are present.

Unity -batchmode -nographics -quit -projectPath <proj> -executeMethod Rivet.ScriptingDefinesEditor.RunBatch -rivet-out <file.json>

Set Standalone defines:

Unity -batchmode -nographics -quit -projectPath <proj> -executeMethod Rivet.ScriptingDefinesEditor.RunBatch -rivet-group Standalone -rivet-defines "FOO;BAR"

Arg	Meaning
-rivet-out <file.json>	Output path. Default: <project>/RivetReports/scripting-defines.json
-rivet-fail	Exit code 1 if a mutate was requested and failed (also exits 1 on any mutate/parse error)
-rivet-group Standalone	Target group. Case-insensitive. One of Standalone, Android, iOS, WebGL
-rivet-defines "A;B;C"	Replacement define list for that group. Empty string clears the group.

RunBatch only calls EditorApplication.Exit when Application.isBatchMode is true. It logs count= and the output path.

Also accepts -rivet-out=file.json and -rivet-defines=A;B;C.

-rivet-group EditorUser is rejected (that list is read-only).

JSON

{
  "tool": "ScriptingDefinesEditor",
  "generatedUtc": "2026-08-18T02:00:00Z",
  "count": 5,
  "items": [
    {
      "group": "Standalone",
      "defines": ["FOO"]
    }
  ]
}

count is the number of groups in the dump (editable groups plus EditorUser). An empty project still emits one item per existing group, often with "defines": [].

Notes

• Uses PlayerSettings.GetScriptingDefineSymbolsForGroup / SetScriptingDefineSymbolsForGroup (obsolete-warning silenced; the 2021.3 API the kit asked for).
• Apply / batch set lock assembly reload until the report is written, then unlock (Unity will recompile).
• Does not write EditorUser defines. Extra compiler args / csc.rsp are not edited.
• Empty projects and a missing RivetReports folder are fine.
• Does not touch runtime player code.