From cd972df86d691f9e514fca74651f12dae87b24f8 Mon Sep 17 00:00:00 2001
From: Scott Lawrence <scott+git@ineffectivetheory.com>
Date: Fri, 21 Jun 2024 22:04:47 -0600
Subject: First part of the data-downloading infrastructure

---
 Project.toml |  1 +
 src/Data.jl  | 27 +++++++++++++++++++++++++++
 2 files changed, 28 insertions(+)

diff --git a/Project.toml b/Project.toml
index 430531c..9a7177e 100644
--- a/Project.toml
+++ b/Project.toml
@@ -5,6 +5,7 @@ version = "0.1.0"
 
 [deps]
 ArgParse = "c7e460c6-2fb9-53a9-8c5b-16f535851c63"
+Downloads = "f43a241f-c20a-4ad4-852c-f6b1247861c6"
 LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
 REPL = "3fa0cd96-eef1-5676-8a61-b3b8758bbffb"
 TOML = "fa267f1f-6049-4f14-aa54-33bafae1ed76"
diff --git a/src/Data.jl b/src/Data.jl
index c1323b6..951a1b2 100644
--- a/src/Data.jl
+++ b/src/Data.jl
@@ -1,5 +1,32 @@
 module Data
 
+using Downloads: download
 using TOML
 
+import Base: getindex, setindex
+
+struct Source
+end
+
+struct Index
+    filename::String
+    sources::Dict{String, Source}
+end
+
+function Index(filename::String)::Index
+    sources = Dict{String, Source}()
+    return Index(filename, sources)
+end
+
+function save(index::Index)
+end
+
+function getindex(index::Index, k::String)::Source
+    index.sources[k]
+end
+
+function setindex!(index::Index, k::String, s::Source)
+    index.sources[k] = s
+end
+
 end
-- 
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