Remove Compat dependency and use a test workspace

.github/dependabot.yml

@@ -6,8 +6,7 @@ updates:
     schedule:
       interval: "weekly"
   - package-ecosystem: "julia"
-    directories:
-      - "/"
+    directory: "/"
     schedule:
       interval: "weekly"
     groups:

Project.toml

@@ -1,11 +1,10 @@
 name = "ChainRules"
 uuid = "082447d4-558c-5d27-93f4-14fc19e9eca2"
-version = "1.74.1"
+version = "1.74.2"
 
 [deps]
 Adapt = "79e6a3ab-5dfb-504d-930d-738a2a938a0e"
 ChainRulesCore = "d360d2e6-b24c-11e9-a2a3-2a2ae2dbcce4"
-Compat = "34da2185-b29b-5c13-b0c7-acf172513d20"
 Distributed = "8ba89e20-285c-5b6f-9357-94700520ee1b"
 GPUArraysCore = "46192b85-c4d5-4398-a991-12ede77f4527"
 IrrationalConstants = "92d709cd-6900-40b7-9082-c6be49f344b6"
@@ -20,32 +19,17 @@ StructArrays = "09ab397b-f2b6-538f-b94a-2f83cf4a842a"
 [compat]
 Adapt = "3.4.0, 4"
 ChainRulesCore = "1.25"
-ChainRulesTestUtils = "1.5"
-Compat = "3.46, 4.2"
 Distributed = "1"
-FiniteDifferences = "0.12.20"
 GPUArraysCore = "0.1.0, 0.2"
 IrrationalConstants = "0.1.1, 0.2"
-JLArrays = "0.1, 0.4"
 LinearAlgebra = "1"
-ParallelTestRunner = "2"
 Random = "1"
 RealDot = "0.1"
 SparseArrays = "1"
 SparseInverseSubset = "0.1"
-StaticArrays = "1.2"
 Statistics = "1"
 StructArrays = "0.6.11, 0.7"
 julia = "1.10"
 
-[extras]
-ChainRulesTestUtils = "cdddcdb0-9152-4a09-a978-84456f9df70a"
-FiniteDifferences = "26cc04aa-876d-5657-8c51-4c34ba976000"
-JLArrays = "27aeb0d3-9eb9-45fb-866b-73c2ecf80fcb"
-ParallelTestRunner = "d3525ed8-44d0-4b2c-a655-542cee43accc"
-Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
-StaticArrays = "90137ffa-7385-5640-81b9-e52037218182"
-Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
-
-[targets]
-test = ["ChainRulesTestUtils", "FiniteDifferences", "JLArrays", "ParallelTestRunner", "Random", "StaticArrays", "Test"]
+[workspace]
+projects = ["test"]

src/ChainRules.jl

@@ -3,7 +3,6 @@ module ChainRules
 using Adapt: adapt
 using Base.Broadcast: materialize, materialize!, broadcasted, Broadcasted, broadcastable
 using ChainRulesCore
-using Compat
 using Distributed
 using GPUArraysCore: AbstractGPUArray, AbstractGPUArrayStyle, @allowscalar
 using IrrationalConstants: logtwo, logten
@@ -22,8 +21,6 @@ import ChainRulesCore: rrule, frule
 # Experimental:
 using ChainRulesCore: derivatives_given_output
 
-using Compat: stack
-
 # numbers that we know commute under multiplication
 const CommutativeMulNumber = Union{Real,Complex}
 

test/Project.toml

@@ -0,0 +1,33 @@
+[deps]
+Adapt = "79e6a3ab-5dfb-504d-930d-738a2a938a0e"
+ChainRules = "082447d4-558c-5d27-93f4-14fc19e9eca2"
+ChainRulesCore = "d360d2e6-b24c-11e9-a2a3-2a2ae2dbcce4"
+ChainRulesTestUtils = "cdddcdb0-9152-4a09-a978-84456f9df70a"
+FiniteDifferences = "26cc04aa-876d-5657-8c51-4c34ba976000"
+GPUArraysCore = "46192b85-c4d5-4398-a991-12ede77f4527"
+JLArrays = "27aeb0d3-9eb9-45fb-866b-73c2ecf80fcb"
+LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
+ParallelTestRunner = "d3525ed8-44d0-4b2c-a655-542cee43accc"
+Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
+SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
+StaticArrays = "90137ffa-7385-5640-81b9-e52037218182"
+Statistics = "10745b16-79ce-11e8-11f9-7d13ad32a3b2"
+Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
+
+[compat]
+Adapt = "3.4.0, 4"
+ChainRulesCore = "1.25"
+ChainRulesTestUtils = "1.5"
+FiniteDifferences = "0.12.20"
+GPUArraysCore = "0.1.0, 0.2"
+JLArrays = "0.1, 0.4"
+LinearAlgebra = "1"
+ParallelTestRunner = "2"
+Random = "1"
+SparseArrays = "1"
+StaticArrays = "1.2"
+Statistics = "1"
+Test = "1"
+
+[sources]
+ChainRules = { path = ".." }