smaller sublibrary of SDE.jl and move away from extension (#256)

* move to smaller sublibrary of StochasticDiffEq and move away from extension

* add changelog

Author: oameye

CHANGELOG.md

@@ -1,3 +1,8 @@
+# v3.17
+
+- `CoupledSDEs` (along with `diffusion_matrix` and related utilities) is now part of the core package instead of living behind the `StochasticSystemsBase` package extension. Users no longer need to load `StochasticDiffEq` to construct or use `CoupledSDEs`, and `Base.get_extension` is no longer required to access `diffusion_matrix`.
+- The `StochasticDiffEq` dependency has been replaced with the smaller `StochasticDiffEqHighOrder` sublibrary, reducing load time and dependency surface for users of `CoupledSDEs`. Compile time of `DynamicalSystemsBase` increases slightly (about 2.5s to 3s) in exchange.
+
 # v3.16
 
 - `reinit!(ds::CoupledSDEs)` now accepts a `seed::UInt64` keyword that re-seeds the noise process random number generator. The default is `rand(UInt64)`, so each `reinit!` produces a fresh, independent noise realization unless an explicit seed is given.

Project.toml

@@ -1,7 +1,7 @@
 name = "DynamicalSystemsBase"
 uuid = "6e36e845-645a-534a-86f2-f5d4aa5a06b4"
 repo = "https://github.com/JuliaDynamics/DynamicalSystemsBase.jl.git"
-version = "3.16.0"
+version = "3.17.0"
 
 [deps]
 ForwardDiff = "f6369f11-7733-5829-9624-2563aa707210"
@@ -14,14 +14,9 @@ SciMLBase = "0bca4576-84f4-4d90-8ffe-ffa030f20462"
 SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
 StateSpaceSets = "40b095a5-5852-4c12-98c7-d43bf788e795"
 Statistics = "10745b16-79ce-11e8-11f9-7d13ad32a3b2"
+StochasticDiffEqHighOrder = "0520c28c-50fd-4d16-9c96-902fc80b3bab"
 SymbolicIndexingInterface = "2efcf032-c050-4f8e-a9bb-153293bab1f5"
 
-[weakdeps]
-StochasticDiffEq = "789caeaf-c7a9-5a7d-9973-96adeb23e2a0"
-
-[extensions]
-StochasticSystemsBase = "StochasticDiffEq"
-
 [compat]
 ForwardDiff = "0.10, 1"
 OrdinaryDiffEqTsit5 = "2"
@@ -30,6 +25,6 @@ Roots = "2, 3"
 SciMLBase = "3"
 StateSpaceSets = "2.5"
 Statistics = "1"
-StochasticDiffEq = "7"
+StochasticDiffEqHighOrder = "2"
 SymbolicIndexingInterface = "0.3.4"
 julia = "1.10"

docs/make.jl

@@ -1,9 +1,7 @@
 cd(@__DIR__)
 
 using DynamicalSystemsBase
-using StochasticDiffEq, DiffEqNoiseProcess # to enable extention
-# We need this because Documenter doesn't know where to get the docstring from otherwise
-StochasticSystemsBase = Base.get_extension(DynamicalSystemsBase, :StochasticSystemsBase)
+using StochasticDiffEq, DiffEqNoiseProcess
 
 pages = [
     "index.md",
@@ -20,5 +18,5 @@ include("build_docs_with_style.jl")
 
 build_docs_with_style(
     pages,
-    DynamicalSystemsBase, SciMLBase, StateSpaceSets, StochasticSystemsBase
+    DynamicalSystemsBase, SciMLBase, StateSpaceSets
 )