fix(public directory): not deleting old files

fixed by deleting all html files in the public directory

luago.lua

@@ -12,20 +12,32 @@ for file in lfs.dir(currentDir) do
     -- ignore "." and ".." files
     if not(file:sub(1,2) == ".." or file:sub(1,1) == '.') then
         local filePath = currentDir .. '/' .. file
-        -- match file names ending with ".md"
         if file:match("index.md") then haveIndexmd = true end
         if file:match("index.html") then haveIndexhtml = true end
+        -- match file names ending with ".md"
         if file:match("%.md$") then
             markdownFileCount = markdownFileCount + 1
             markdownFiles[markdownFileCount] = {
                 options = {},
                 filePath = filePath,
                 fileName = file:sub(1, file:len()-3),
-                content = ""
+                content = "",
+                hasHtml = false
             }
         end
     end
 end
+-- check html files with same name as the md files
+for file in lfs.dir(currentDir) do
+    if file:match("%.html$") then
+        for index, value in ipairs(markdownFiles) do
+            if file:match(value.fileName .. ".html") then
+                markdownFiles[index].hasHtml = true
+                print(value.fileName .. "file has a html template file.")
+            end
+        end
+    end
+end
 
 -- stop the program if "index.html" or "index.md" doesn't exist
 if (not(haveIndexhtml) and not(haveIndexmd)) then return print("Can't find index.html or index.md!") end
@@ -110,8 +122,12 @@ end
 -- get index.html content
 local indexFile = io.open("index.html"):read("*all")
 
--- remove and create "public/" directory
-lfs.rmdir("public")
+-- delete html files and create "public/" directory
+for file in lfs.dir(currentDir .. "/public") do
+    if file:match("%.html$") then
+        os.remove(currentDir .. "/public/" .. file)
+    end
+end
 lfs.mkdir("public")
 
 for index, _ in ipairs(markdownFiles) do
@@ -121,6 +137,7 @@ for index, _ in ipairs(markdownFiles) do
         local htmlFile = io.open(workDir .. "/public/" .. markdownFiles[index].fileName .. ".html", 'w')
         if htmlFile then
             local content = indexFile
+            if markdownFiles[index].hasHtml then content = io.open(markdownFiles[index].fileName .. ".html"):read("*all") end
 
             -- STYLING
             local function styleLists(s)
@@ -264,5 +281,5 @@ for index, _ in ipairs(markdownFiles) do
         else
             print("Error: Cannot create html file for " .. markdownFiles[index].filePath)
         end
-end
+    end
 end