JSON Schema Property 'build'

"build": {
    "type": "object",
    "description": "Properties to be passed to the build command.",
    "properties": {
        "sourcemaps": {
            "type": "boolean",
            "description": "Output sourcemaps."
        },
        "baseHref": {
            "type": "string",
            "description": "Base url for the application being built."
        },
        "progress": {
            "type": "boolean",
            "description": "The ssl key used by the server.",
            "default": true
        },
        "poll": {
            "type": "number",
            "description": "Enable and define the file watching poll time period (milliseconds)."
        },
        "deleteOutputPath": {
            "type": "boolean",
            "description": "Delete output path before build.",
            "default": true
        },
        "preserveSymlinks": {
            "type": "boolean",
            "description": "Do not use the real path when resolving modules.",
            "default": false
        },
        "showCircularDependencies": {
            "type": "boolean",
            "description": "Show circular dependency warnings on builds.",
            "default": true
        }
    }
}

• /properties/defaults