Cleanup imports with ExplicitImports.jl

TL;DR:
- Replaced all uses of `using` with explicit imports
- Removed old imports

Author: JamesWrigley

ext/GraphVizExt.jl

@@ -9,7 +9,7 @@ end
 import Dagger
 import Dagger: EagerThunk, Chunk, Processor
 import Dagger.TimespanLogging: Timespan
-using Dagger.Graphs
+import Graphs: SimpleDiGraph, add_edge!, add_vertex!, inneighbors, outneighbors, vertices, is_directed, edges, nv
 
 function pretty_time(t; digits=3)
     r(t) = round(t; digits)

src/Dagger.jl

@@ -1,16 +1,20 @@
 module Dagger
 
-using Distributed, SharedArrays, Serialization
+import Serialization
+import Serialization: AbstractSerializer, serialize, deserialize
+import SparseArrays: sprand, SparseMatrixCSC
 
-using MemPool
+import MemPool
+import MemPool: DRef, FileRef, poolget, poolset
 
-import Base: collect, adjoint, reduce
-import Distributed: procs
+import Base: collect, reduce
+import Distributed
+import Distributed: Future, RemoteChannel, myid, workers, nworkers, procs, remotecall, remotecall_wait, remotecall_fetch
 
-using LinearAlgebra
-import LinearAlgebra: transpose
+import LinearAlgebra
+import LinearAlgebra: Adjoint, BLAS, Diagonal, LAPACK, LowerTriangular, PosDefException, Transpose, UpperTriangular, diagind, ishermitian, issymmetric
 
-using UUIDs
+import UUIDs: UUID, uuid4
 
 if !isdefined(Base, :ScopedValues)
     import ScopedValues: ScopedValue, with
@@ -22,15 +26,17 @@ if !isdefined(Base, :get_extension)
 using Requires
 end
 
-using MacroTools
-using TimespanLogging
+import TimespanLogging
+import TimespanLogging: timespan_start, timespan_finish
 
 include("lib/util.jl")
 include("utils/dagdebug.jl")
 
 # Distributed data
 include("utils/locked-object.jl")
 include("utils/tasks.jl")
+
+import MacroTools: @capture
 include("options.jl")
 include("processor.jl")
 include("threadproc.jl")
@@ -85,7 +91,7 @@ include("utils/logging-events.jl")
 include("utils/logging.jl")
 
 # Precompilation
-using PrecompileTools
+import PrecompileTools: @compile_workload
 include("precompile.jl")
 
 function __init__()

src/array/alloc.jl

@@ -1,6 +1,5 @@
 import Base: cat
-using SparseArrays, Random
-import SparseArrays: sprand
+import Random: MersenneTwister
 export partition
 
 mutable struct AllocateArray{T,N} <: ArrayOp{T,N}

src/array/darray.jl

@@ -1,6 +1,4 @@
 import Base: ==, fetch
-using Serialization
-import Serialization: serialize, deserialize
 
 ###### Array Domains ######
 

src/array/indexing.jl

@@ -1,4 +1,4 @@
-using TaskLocalValues
+import TaskLocalValues: TaskLocalValue
 
 ### getindex
 

src/array/operators.jl

@@ -1,10 +1,3 @@
-import Base: exp, expm1, log, log10, log1p, sqrt, cbrt, exponent,
-             significand, sin, sinpi, cos, cospi, tan, sec, cot, csc,
-             sinh, cosh, tanh, coth, sech, csch,
-             asin, acos, atan, acot, asec, acsc,
-             asinh, acosh, atanh, acoth, asech, acsch, sinc, cosc,
-             +, -, %, &, *
-
 import Base: broadcast
 import Base: Broadcast
 import Base.Broadcast: Broadcasted, BroadcastStyle, combine_eltypes

src/array/sort.jl

@@ -1,7 +1,7 @@
-import Base.Sort: Forward, Ordering, Algorithm, lt
-using Distributed
+import Base.Sort: Forward, Ordering, lt
+import SharedArrays: SharedArray
 
-using StatsBase
+import StatsBase: fit!, sample
 
 
 function getmedians(x, n)

src/array/sparse_partition.jl

@@ -1,5 +1,4 @@
 export partition_sparse
-using SparseArrays
 
 function partition_sparse(colptr, nnz, sz, nparts)
     nnz_per_chunk = nnz/nparts

src/chunks.jl

@@ -1,5 +1,3 @@
-using Serialization
-
 export domain, UnitDomain, project, alignfirst, ArrayDomain
 
 import Base: isempty, getindex, intersect, ==, size, length, ndims

src/datadeps.jl

@@ -1,4 +1,4 @@
-using Graphs
+import Graphs: SimpleDiGraph, add_edge!, add_vertex!, inneighbors, outneighbors, nv
 
 export In, Out, InOut, spawn_datadeps