Tag: "..tag.."

#!/usr/bin/env lua
local sitelib = require "sitelib"
local fs = require "lfs"
local tags = {}

if not fs.attributes(sitelib.outpath.."/tag") then
 fs.mkdir(sitelib.outpath.."/tag")
end

print("Building list of markdown files")
local mdfiles = {}
local dqueue = {sitelib.srcpath}
for k,path in pairs(dqueue) do
 for file in fs.dir(path) do
  if file:sub(1,1) ~= "." then
   local attr = fs.attributes(path.."/"..file)
   if attr.mode == "directory" then
    dqueue[#dqueue+1] = path.."/"..file
   elseif file:sub(-3) == ".md" then
    mdfiles[#mdfiles+1] = path.."/"..file
   end
  end
 end
end

print("Reading tags...")
for k,infile in pairs(mdfiles) do
 local f = io.open(infile,"rb")
 local c = f:read("*a")
 f:close()
 local page = sitelib.parsepage(c)
 if page.tags then
   print((infile:sub(sitelib.srcpath:len()+1)):sub(1,-4)..".html")
  for w in page.tags:gmatch("%S+") do
   tags[w] = tags[w] or {}
   table.insert(tags[w],{(infile:sub(sitelib.srcpath:len()+1)):sub(1,-4)..".html",page.title,page.md:match("\n\n(.-)\n")})
  end
 end
end

print("Writing individual tag indexes...")
for tag,v in pairs(tags) do
 local f = io.open(sitelib.outpath.."/tag/"..tag..".html","wb")
 f:write("<html><head><title>Tag: "..tag.."</title>\n")
 f:write(sitelib.header)
 f:write("<h1>Tag: "..tag.."</h1>\n")
 for l,m in pairs(v) do
  f:write("<h3><a href=\""..m[1].."\">"..m[2].."</a></h3>\n")
  local fline = m[3]:gsub("\"","\\\"")
  f:write(io.popen("echo \""..fline.."\" | markdown -"):read("*a"))
 end
 f:write(sitelib.footer)
 f:close()
end

print("Writing overall tag index...")
local ti = {}
for tag, v in pairs(tags) do
 ti[#ti+1] = tag
end
table.sort(ti)
local f = io.open(sitelib.outpath.."/tag/index.html","wb")
f:write("<html><head><title>Tag Index</title>\n")
f:write(sitelib.header)
f:write("<h1>Tag index</h1>\n")
for k,v in pairs(ti) do
 if #tags[v] > 1 then
  f:write("<h3><a href=\""..v..".html\">"..v.."</a> ("..#tags[v].." entries)</h3>\n")
 else
  f:write("<h3><a href=\""..v..".html\">"..v.."</a> ("..#tags[v].." entry)</h3>\n")
 end
end
f:write(sitelib.footer)
f:close()