From 663c54d24b35e02a828790c39dc5f52431389fe9 Mon Sep 17 00:00:00 2001
From: Jishnu Bhattacharya <jishnub.github@gmail.com>
Date: Mon, 15 May 2023 21:01:03 +0530
Subject: [PATCH] Move Adapt to a weak-dependency

---
 Project.toml        |  8 +++++++-
 ext/AdaptExt.jl     | 11 +++++++++++
 src/OffsetArrays.jl |  8 +++-----
 test/runtests.jl    |  5 ++++-
 4 files changed, 25 insertions(+), 7 deletions(-)
 create mode 100644 ext/AdaptExt.jl

diff --git a/Project.toml b/Project.toml
index 521235c..520e11e 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,10 +1,16 @@
 name = "OffsetArrays"
 uuid = "6fe1bfb0-de20-5000-8ca7-80f57d26f881"
-version = "1.12.10"
+version = "1.13.0"
 
 [deps]
 Adapt = "79e6a3ab-5dfb-504d-930d-738a2a938a0e"
 
+[weakdeps]
+Adapt = "79e6a3ab-5dfb-504d-930d-738a2a938a0e"
+
+[extensions]
+AdaptExt = "Adapt"
+
 [compat]
 Adapt = "2, 3"
 Aqua = "0.6"
diff --git a/ext/AdaptExt.jl b/ext/AdaptExt.jl
new file mode 100644
index 0000000..1047a20
--- /dev/null
+++ b/ext/AdaptExt.jl
@@ -0,0 +1,11 @@
+module AdaptExt
+
+using OffsetArrays, Adapt
+
+##
+# Adapt allows for automatic conversion of CPU OffsetArrays to GPU OffsetArrays
+##
+import Adapt
+Adapt.adapt_structure(to, O::OffsetArray) = OffsetArrays.parent_call(x -> Adapt.adapt(to, x), O)
+
+end
diff --git a/src/OffsetArrays.jl b/src/OffsetArrays.jl
index 2a03bf5..a0f8829 100644
--- a/src/OffsetArrays.jl
+++ b/src/OffsetArrays.jl
@@ -849,11 +849,9 @@ if VERSION <= v"1.7.0-DEV.400"
     Base._to_linear_index(A::OffsetArray) = first(LinearIndices(A))
 end
 
-##
-# Adapt allows for automatic conversion of CPU OffsetArrays to GPU OffsetArrays
-##
-import Adapt
-Adapt.adapt_structure(to, O::OffsetArray) = parent_call(x -> Adapt.adapt(to, x), O)
+if !isdefined(Base, :get_extension)
+  include("../ext/AdaptExt.jl")
+end
 
 if Base.VERSION >= v"1.4.2"
     include("precompile.jl")
diff --git a/test/runtests.jl b/test/runtests.jl
index 300a18d..5012195 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -41,7 +41,10 @@ function same_value(r1, r2)
 end
 
 @testset "Project meta quality checks" begin
-    Aqua.test_all(OffsetArrays, piracy=false)
+    Aqua.test_all(OffsetArrays, piracy=false,
+        # only test formatting on VERSION >= v1.7
+        # https://github.com/JuliaTesting/Aqua.jl/issues/105#issuecomment-1551405866
+        project_toml_formatting = VERSION >= v"1.7")
     if VERSION >= v"1.2"
         doctest(OffsetArrays, manual = false)
     end