Revive the data REPL

Project.toml

@@ -6,6 +6,7 @@ version = "0.2.3"
 [deps]
 AbstractTrees = "1520ce14-60c1-5f80-bbc7-55ef81b5835c"
 Base64 = "2a0f44e3-6c83-55bd-87e4-b1978d98bd5f"
+Markdown = "d6f4376e-aef5-505a-96c1-9c027394607a"
 REPL = "3fa0cd96-eef1-5676-8a61-b3b8758bbffb"
 ReplMaker = "b873ce64-0db9-51f5-a568-4457d8e49576"
 ResourceContexts = "8d208092-d35c-4dd3-a0d7-8325f9cce6b4"

src/DataSets.jl

@@ -321,7 +321,11 @@ function Base.show(io::IO, ::MIME"text/plain", project::AbstractDataProject)
     maxwidth = maximum(textwidth.(first.(sorted)))
     for (i, (name, data)) in enumerate(sorted)
         pad = maxwidth - textwidth(name)
-        print(io, "  ", name, ' '^pad, " => ", data.uuid)
+        storagetype = get(data.storage, "type", nothing)
+        icon = storagetype == "Blob"     ? '📄' :
+               storagetype == "BlobTree" ? '📁' :
+               '❓'
+        print(io, "  ", icon, ' ', name, ' '^pad, " => ", data.uuid)
         if i < length(sorted)
             println(io)
         end
@@ -375,6 +379,8 @@ end
 # API for manipulating the stack.
 Base.push!(stack::StackedDataProject, project) = push!(stack.projects, project)
 Base.pushfirst!(stack::StackedDataProject, project) = pushfirst!(stack.projects, project)
+Base.popfirst!(stack::StackedDataProject) = popfirst!(stack.projects)
+Base.pop!(stack::StackedDataProject) = pop!(stack.projects)
 Base.empty!(stack::StackedDataProject) = empty!(stack.projects)
 
 function Base.show(io::IO, mime::MIME"text/plain", stack::StackedDataProject)
@@ -405,6 +411,14 @@ function expand_project_path(path)
     path
 end
 
+function data_project_from_path(path)
+    if path == "@"
+        project = ActiveDataProject()
+    else
+        project = TomlFileDataProject(expand_project_path(path))
+    end
+end
+
 function create_project_stack(env)
     stack = []
     env_search_path = get(env, "JULIA_DATASETS_PATH", nothing)
@@ -414,11 +428,7 @@ function create_project_stack(env)
         paths = split(env_search_path, Sys.iswindows() ? ';' : ':')
     end
     for path in paths
-        if path == "@"
-            project = ActiveDataProject()
-        else
-            project = TomlFileDataProject(expand_project_path(path))
-        end
+        project = data_project_from_path(path)
         push!(stack, project)
     end
     StackedDataProject(stack)
@@ -577,6 +587,6 @@ include("DataTomlStorage.jl")
 # include("GitTree.jl")
 
 # Application-level stuff
-# include("repl.jl")
+include("repl.jl")
 
 end