site_depotoire/porteail.lua

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#!/usr/bin/env lua
-- porteail.lua
--[[ Requirements ]]--
require 'lfs'
--[[ Variables ]]--
-- Mandatories files
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local configFile = './' .. 'configrc'
-- Default directories values
local currentpath = os.getenv('CURDIR') or '.'
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local default_dir_category = 'categ'
local default_dir_component = 'composants'
local default_dir_destination = 'porteail'
-- Default files values
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local default_img_filename = 'generique.png'
local default_index_filename = 'index.html'
local default_template_index_filename = 'index.html'
-- Other defaults values
local default_categ_extension = 'txt'
--[[ Functions ]]--
function getConfig(file)
result = {}
f = assert(io.open(file, 'r'))
while true do
line = f.read(f)
if not line then break end
local key = line:match('([^#].-)[ ]+=')
local val = line:match('=[ ]+(.*)')
local comment = string.find(line, '^#+(.*)')
if comment then
-- do nothing with comment
elseif key then
result[key] = val
end
end
assert(f:close())
return result
end
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function replace(string, table)
return string:gsub("$(%b{})", function(string)
return table[string:sub(2,-2)]
end)
end
function listing (path, extension)
files = {}
if lfs.attributes(path) then
for file in lfs.dir(path) do
if file ~= "." and file ~= ".." then
local f = path..'/'..file
local attr = lfs.attributes (f)
filext = (string.match(file, "[^\\/]-%.?([^%.\\/]*)$"))
if attr.mode == 'file' and filext == extension then
table.insert(files, f)
end
end
end
else
files = nil
end
return files
end
function process(filepath)
-- parse given file
for line in io.lines(filepath) do
-- check if this line is a comment ("# my comment"), a category ("[[My category]]Its description") or an element ("Title##Description##URL##Image")
is_comment = string.find(line, '^#+.*')
is_title = string.find(line, '%[%[(.*)%]%](.*)')
is_element = string.find(line, '(.*)##(.*)##(.*)##(.*)')
if is_comment then
-- do nothing because it's a comment
elseif is_title then
title = ''
for t in string.gmatch(line, '%[%[(.*)%]%].*') do title = title .. t end
description =''
for d in string.gmatch(line, '%[%[.*%]%](.*)') do description = description .. d end
print("TITLE: " .. '\n\t' .. title .. '\n\t' .. description)
elseif is_element then
title = ''
description = ''
url = ''
img = ''
for t in string.gmatch(line, '(.*)##.*##.*##.*') do title = title .. t end
for d in string.gmatch(line, '.*##(.*)##.*##.*') do description = description .. d end
for u in string.gmatch(line, '.*##.*##(.*)##.*') do url = url .. u end
for i in string.gmatch(line, '.*##.*##.*##(.*)') do img = img .. i end
print("ELEMENT: " .. '\n\t' .. title .. '\n\t' .. description .. '\n\t' .. url .. '\n\t' .. img)
end
end
end
--[[ Principal ]]--
-- fetch user defined values
config = getConfig(configFile)
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-- create values for directories
categ = config['CATEGORIES'] or default_dir_category
component = config['COMPOSANTS'] or default_dir_component
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destination = config['CIBLE'] or default_dir_destination
-- create values for files
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index_filename = config['INDEX'] or default_index_filename
main_template = config['TEMPLATE_INDEX'] or default_template_index_filename
-- other default values
categ_extension = config['CATEGORIES_EXT'] or default_categ_extension
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-- get page
index_file = assert(io.open(currentpath .. '/' .. component .. '/' .. index_filename, 'r'))
index = assert(index_file:read('*a'))
assert(index_file:close())
-- Browse categ directory
local categories_files = listing (currentpath .. '/' .. categ, categ_extension)
if categories_files then
for k,v in pairs(categories_files) do
-- read category content
attr = lfs.attributes(v)
if attr and attr.mode == 'file' then
process(v)
end
end
else
print ("-- No category file found!")
end
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-- Check if public directory exists
if lfs.attributes(destination) == nil then
assert(lfs.mkdir(destination))
end
-- Create index file in destination directory
result = assert(io.open(destination .. '/' .. main_template, 'wb'))
-- create substitution table
substitutions = {
TITLE=config['TITRE'] .. ' - Accueil',
PORTEAIL_TITLE=config['TITRE'],
}
-- replace variables in result
assert(result:write(replace(index, substitutions)))
-- close file
assert(result:close())
--[[ END ]]--