Reorganized files so that each file is a module

Some files have changed names because there were name conflicts (e.g.,
the module `OutputVar`, the function `OutputVar`, and the struct
`OutputVar`).

NEWS.md

@@ -1,6 +1,10 @@
 ClimaAnalysis.jl Release Notes
 ===============================
 
+v0.5.4
+------
+- Reorganized internal modules so that each file is a module.
+
 v0.5.3
 ------
 - Add `Visualize.contour2D_on_globe!` for discrete contours.

src/ClimaAnalysis.jl

@@ -3,9 +3,9 @@ module ClimaAnalysis
 include("Utils.jl")
 import .Utils
 
-include("OutputVar.jl")
-include("SimDir.jl")
-import .SimDir
+include("Var.jl")
+include("Sim.jl")
+import .Sim
 
 include("Visualize.jl")
 import .Visualize

src/SimDir.jl → src/Sim.jl

@@ -1,3 +1,5 @@
+module Sim
+
 import Base: get
 
 export SimDir, available_vars, available_reductions, available_periods
@@ -191,3 +193,5 @@ end
 Check if the given SimDir contains OutputVars.
 """
 Base.isempty(simdir::SimDir) = isempty(simdir.vars)
+
+end

src/OutputVar.jl → src/Var.jl

@@ -1,9 +1,11 @@
+module Var
+
 import NCDatasets
 import OrderedCollections: OrderedDict
 
 import Statistics: mean
 
-import .Utils: nearest_index, seconds_to_prettystr
+import ..Utils: nearest_index, seconds_to_prettystr
 
 export OutputVar,
     read_var,
@@ -518,3 +520,5 @@ end
 @overload_binary_op (-)
 @overload_binary_op (*)
 @overload_binary_op (/)
+
+end

test/runtests.jl

@@ -6,11 +6,11 @@ using Test
 @safetestset "Docstrings" begin @time include("doctest.jl") end
 @safetestset "Format" begin @time include("format.jl") end
 
-@safetestset "Utils" begin @time include("Utils.jl") end
-@safetestset "SimDir" begin @time include("SimDir.jl") end
-@safetestset "OutputVar" begin @time include("OutputVar.jl") end
-@safetestset "CairoMakieExt" begin @time include("CairoMakieExt.jl") end
-@safetestset "GeoMakieExt" begin @time include("GeoMakieExt.jl") end
+@safetestset "Utils" begin @time include("test_Utils.jl") end
+@safetestset "SimDir" begin @time include("test_Sim.jl") end
+@safetestset "OutputVar" begin @time include("test_Var.jl") end
+@safetestset "CairoMakieExt" begin @time include("test_CairoMakieExt.jl") end
+@safetestset "GeoMakieExt" begin @time include("test_GeoMakieExt.jl") end
 #! format: on
 
 nothing