Implement DiskArrays 0.4 interface (#189)

* implement new diskarrays interface

* Dont support 0.3

* Drop 1.6 support

.github/workflows/CI.yml

@@ -13,7 +13,6 @@ jobs:
       fail-fast: false
       matrix:
         version:
-          - '1.6'
           - '1'
           - 'nightly'
         os:

Project.toml

@@ -10,9 +10,9 @@ DiskArrays = "3c3547ce-8d99-4f5e-a174-61eb10b00ae3"
 NetCDF_jll = "7243133f-43d8-5620-bbf4-c2c921802cf3"
 
 [compat]
-DiskArrays = "0.3"
+DiskArrays = "0.4"
 NetCDF_jll = "400.902.5"
-julia = "1.6"
+julia = "1.10"
 
 [extras]
 Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"

src/NetCDF.jl

@@ -3,7 +3,7 @@ module NetCDF
 using NetCDF_jll
 using Base.Cartesian
 import DiskArrays: readblock!, writeblock!, AbstractDiskArray, eachchunk, GridChunks,
-       estimate_chunksize, haschunks, Chunked, Unchunked
+       estimate_chunksize, haschunks, Chunked, Unchunked, SubRanges
 
 include("netcdf_constants.jl")
 include("netcdf_c.jl")
@@ -229,7 +229,7 @@ getchunksize(v::NcVar) = getchunksize(haschunks(v),v)
 getchunksize(::Chunked, v::NcVar) = GridChunks(v,reverse(map(Int64,v.chunksize)))
 getchunksize(::Unchunked, v::NcVar) = estimate_chunksize(v)
 eachchunk(v::NcVar) = getchunksize(v)
-haschunks(v::NcVar) = all(iszero,v.chunksize) ? Unchunked() : Chunked()
+haschunks(v::NcVar) = all(iszero,v.chunksize) ? Unchunked(SubRanges()) : Chunked()
 
 """
     NcVar(name::AbstractString,dimin::Union{NcDim,Array{NcDim,1}}