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#!/usr/bin/lua
markdown = require('discount')
lyaml = require('lyaml')
lfs = require('lfs')
function shell_escape(args)
local ret = {}
for _,a in pairs(args) do
s = tostring(a)
if s:match("[^A-Za-z0-9_/:=-]") then
s = "'"..s:gsub("'", "'\\''").."'"
end
table.insert(ret,s)
end
return table.concat(ret, " ")
end
function run(args)
local h = io.popen(shell_escape(args))
local outstr = h:read("*a")
return h:close(), outstr
end
function read_meta(file)
local f = assert(io.open(file))
local header, body = f:read("*a"):match("^(%-%-%-.-%-%-%-)(.*)$")
f:close()
local m = lyaml.load(header)
m.pagename = file:gsub("%.md$", ""):gsub("^.*/", "")
m.md = file
m.html = m.pagename..".html"
-- timestamps in Atom must conform to RFC 3339
m.updated= os.date('!%Y-%m-%dT%H:%M:%SZ', lfs.attributes(file).modification)
return m
end
a = {}
j=1
for i=1, #arg do
local m = read_meta(arg[i])
if m.date then
if not m.author then
local rc, author = run{'git', 'log', '-n', '1',
'--pretty=format:%an',
'--', arg[i]}
if rc then
m.author = author
else
m.author = "unknown"
end
end
a[j] = m
j = j + 1
end
end
table.sort(a, function(a,b)
return a.date > b.date
end)
io.write(lyaml.dump{a})
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