Remove as much dependencies as possible

Project.toml

@@ -4,16 +4,20 @@ authors = ["Rory Finnegan"]
 version = "0.9.21"
 
 [deps]
-Compat = "34da2185-b29b-5c13-b0c7-acf172513d20"
 Dates = "ade2ca70-3891-5945-98fb-dc099432e06a"
 Mmap = "a63ad114-7e13-5084-954f-fe012c677804"
-Printf = "de0858da-6303-5e67-8744-51eddeeeb8d7"
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
-UUIDs = "cf7118a7-6976-5b1a-9a39-7adc72f591a4"
+
+[weakdeps]
+Mmap = "a63ad114-7e13-5084-954f-fe012c677804"
+
+[extensions]
+FilePathsBaseMmapExt = "Mmap"
 
 [compat]
 Compat = "3.33, 4"
 julia = "1"
+Mmap = "<0.0.1, 1"
 
 [extras]
 JLSO = "9da8a3cd-07a3-59c0-a743-3fdc52c30d11"

ext/FilePathsBaseMmapExt.jl

@@ -0,0 +1,7 @@
+module FilePathsBaseMmapExt
+using Mmap
+using FilePathsBase
+
+Mmap.mmap(fp::FilePathsBase.SystemPath, args...; kwargs...) = Mmap.mmap(string(fp), args...; kwargs...)
+
+end #module

src/FilePathsBase.jl

@@ -1,12 +1,10 @@
 module FilePathsBase
 
-using Compat
 using Dates
-using Mmap
-using Printf
-using UUIDs
 
 import Base: ==
+import Base: UUID
+
 export
     # Types
     AbstractPath,
@@ -134,4 +132,8 @@ include("windows.jl")
 include("test.jl")
 include("deprecates.jl")
 
+if !isdefined(Base,:get_extension)
+    include("../ext/FilePathsBaseMmapExt.jl")
+end
+
 end # end of module

src/utils.jl

@@ -1,3 +1,9 @@
+function uuid4(rng::AbstractRNG=Random.RandomDevice())
+    u = rand(rng, UInt128)
+    u &= 0xffffffffffff0fff3fffffffffffffff
+    u |= 0x00000000000040008000000000000000
+    UUID(u)
+end
 # Mostly copied from https://github.com/IainNZ/Humanize.jl/blob/master/src/Humanize.jl#L27
 function _datasize(bytes::Number)
     base = 1024.0
@@ -13,6 +19,5 @@ function _datasize(bytes::Number)
             break
         end
     end
-
-    return @sprintf("%.1f%s", (base * nbytes / unit), suffix)
+    return string(round(base * nbytes / unit,digits = 1)) * suffix
 end