add script to convert .jl to jupuyter notebooks

convert_notebooks.jl

@@ -0,0 +1,70 @@
+# Adapted with minor changes from DataScienceTutorials.jl : 
+# https://github.com/JuliaAI/DataScienceTutorials.jl/blob/5e24796b3621722fefd49465dd0c902c835d68a7/deploy.jl
+
+using Literate
+
+function pre_process_script(io, s)
+    chunks = Literate.parse(Literate.FranklinFlavor(), s)
+
+    remove = Int[]
+    rx  = r".*?#\s*?(?i)hideall.*?"
+    rx2 = r".*?#\s*?(?i)hide.*?" # note: superset, doesn't matter
+
+    for (i, c) in enumerate(chunks)
+       c isa Literate.CodeChunk || continue
+       remove_lines = Int[]
+       hideall = false
+       for (j, l) in enumerate(c.lines)
+          if match(rx, l) !== nothing
+             push!(remove, i)
+             hideall = true
+             break
+          end
+          if match(rx2, l) !== nothing
+             push!(remove_lines, j)
+          end
+       end
+       !hideall && deleteat!(c.lines, remove_lines)
+    end
+    deleteat!(chunks, remove)
+
+    for c in chunks
+       if c isa Literate.CodeChunk
+          for l in c.lines
+             println(io, l)
+          end
+       else
+          for l in c.lines
+             println(io, "# ", l.second)
+          end
+       end
+       println(io, "")
+    end
+    return
+ end
+
+ path = "./notebooks/"
+ for script in readdir("_literate")
+
+    temp_script = tempname()
+    open(temp_script, "w") do ts
+        s = read(joinpath("./_literate", script), String)
+        pre_process_script(ts, s)
+    end
+    script_name = String(first(split(script, ".")))
+    # Notebook
+    Literate.notebook(temp_script, path, name=script_name,
+                      execute=false, documenter=false)
+
+    #=
+    # Unnecessary to generate these for now.
+    # Need to change `path` above if we want to store these too.
+    # Annotated script
+    Literate.script(temp_script, path, name=script_name,
+                    keep_comments=true, documenter=false)
+ 
+    # Stripped script
+    Literate.script(temp_script, path, name=script_name,
+                     keep_comments=false, documenter=false)
+    =#
+ end