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#!/usr/bin/env lua
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-- porteail.lua
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--[[ Requirements ]]--
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require 'lfs'
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--[[ Variables ]]--
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-- Mandatories files
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local configFile = './' .. 'configrc'
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-- Default directories values
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local currentpath = os.getenv('CURDIR') or '.'
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local default_dir_category = 'categ'
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local default_dir_component = 'composants'
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local default_dir_destination = 'porteail'
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local default_dir_img_destination = 'image'
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local default_dir_img_source = 'img'
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local default_dir_css_source = 'style'
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-- Default files values
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local default_img_filename = 'generique.png'
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local default_index_filename = 'index.html'
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local default_template_index_filename = 'index.html'
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local default_template_categ_filename = 'categ.html'
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local default_template_element_filename = 'one_element.html'
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local default_css_filename = 'noir.css'
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local default_css_menu_without = 'sans_menu.css'
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local default_css_menu_with = 'avec_menu.css'
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-- Other defaults values
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local default_categ_extension = 'txt'
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local DIR_SEP = '/'
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local default_css_name = 'Défaut'
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--[[ Functions ]]--
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function readFile(path, mode)
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result = ''
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if not mode then
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mode = 'r'
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end
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if mode ~= 'r' and mode ~= 'rb' then
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print('Unknown read mode!')
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os.exit(1)
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end
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attr = lfs.attributes(path)
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if attr and attr.mode == 'file' then
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f = assert(io.open(path, mode))
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result = assert(f:read('*a'))
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assert(f:close())
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end
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return result
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end
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function getConfig(file)
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result = {}
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f = assert(io.open(file, 'r'))
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while true do
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line = f.read(f)
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if not line then break end
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local key = line:match('([^#].-)[ ]+=')
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local val = line:match('=[ ]+(.*)')
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local comment = string.find(line, '^#+(.*)')
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if comment then
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-- do nothing with comment
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elseif key then
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result[key] = val
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end
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end
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assert(f:close())
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return result
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end
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function replace(string, table)
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return string:gsub("$(%b{})", function(string)
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return table[string:sub(2,-2)]
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end)
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end
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function listing (path, extension)
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files = {}
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if lfs.attributes(path) then
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for file in lfs.dir(path) do
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if file ~= "." and file ~= ".." then
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local f = path..'/'..file
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local attr = lfs.attributes (f)
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filext = (string.match(file, "[^\\/]-%.?([^%.\\/]*)$"))
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if attr.mode == 'file' and filext == extension then
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table.insert(files, f)
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end
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end
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end
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else
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files = nil
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end
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return files
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end
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function basename (string, suffix)
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string = string or ''
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local basename = string.gsub (string, '[^'.. DIR_SEP ..']*'.. DIR_SEP ..'', '')
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if suffix then
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basename = string.gsub (basename, suffix, '')
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end
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return basename
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end
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function processImage(image, source, img_destination, destination, default_img)
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-- if no image given, use default one
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if not image or image == nil or image == '' then
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image = default_img
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end
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-- create image weblink
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result = img_destination .. '/' .. basename(image)
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-- check if this image exists
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attr = lfs.attributes(destination .. '/' .. result)
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if not attr then
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img_path = source .. '/' .. image
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f = assert(io.open(img_path, 'rb'))
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img_src = assert(f:read('*a'))
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assert(f:close())
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img_dest = assert(io.open(destination .. '/' .. result, 'wb'))
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assert(img_dest:write(img_src))
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assert(img_dest:close())
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end
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return result
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end
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function process(filepath, template_categ, template_element, img_destination, destination, img_source, default_img)
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-- parse given file
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local categ_page = ''
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local elements = {}
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for line in io.lines(filepath) do
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local element = ''
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-- check if this line is a comment ("# my comment"), a category ("[[My category]]Its description") or an element ("Title##Description##URL##Image")
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is_comment = string.find(line, '^#+.*')
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is_title = string.find(line, '%[%[(.*)%]%](.*)')
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is_element = string.find(line, '(.*)##(.*)##(.*)##(.*)')
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if is_comment then
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-- do nothing because it's a comment
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elseif is_title then
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title = ''
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for t in string.gmatch(line, '%[%[(.*)%]%].*') do title = title .. t end
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description =''
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for d in string.gmatch(line, '%[%[.*%]%](.*)') do description = description .. d end
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categ_page = replace(template_categ, {CATEG_TITLE=title, CATEG_DESC=description})
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elseif is_element then
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title = ''
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description = ''
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url = ''
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img = ''
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for t in string.gmatch(line, '(.*)##.*##.*##.*') do title = title .. t end
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for d in string.gmatch(line, '.*##.*##(.*)##.*') do description = description .. d end
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for u in string.gmatch(line, '.*##(.*)##.*##.*') do url = url .. u end
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for i in string.gmatch(line, '.*##.*##.*##(.*)') do img = img .. i end
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img_description = " "
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img_url = processImage(img, img_source, img_destination, destination, default_img)
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url = url:gsub('%&', '%&')
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element = replace(template_element, {ELEMENT_URL=url, ELEMENT_DESC=description, ELEMENT_TITLE=title, IMG_URL=img_url, IMG_DESC=img_description})
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table.insert(elements, element)
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end
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end
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local text_elements = ''
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for k, v in pairs(elements) do
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text_elements = text_elements .. v
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end
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local result = replace(categ_page, {ELEMENTS=text_elements})
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return result
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end
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--[[ Principal ]]--
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-- fetch user defined values
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config = getConfig(configFile)
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-- create values for directories
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categ = config['CATEGORIES'] or default_dir_category
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component = config['COMPOSANTS'] or default_dir_component
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destination = config['CIBLE'] or default_dir_destination
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img_destination = config['CIBLE_IMAGE'] or default_dir_img_destination
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img_source = config['IMAGES'] or default_dir_img_source
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css_source = config['CSS'] or default_dir_css_source
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-- create values for files
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index_filename = config['INDEX'] or default_index_filename
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main_template = config['TEMPLATE_INDEX'] or default_template_index_filename
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template_categ_filename = config['TEMPLATE_CATEG'] or default_template_categ_filename
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template_element_filename = config['TEMPLATE_ELEMENT'] or default_template_element_filename
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default_img = config['DEFAUT_IMG'] or default_img_filename
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css_filename = config['STYLE'] or default_css_filename
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css_menu = default_css_menu_without
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local menu = config['MENU'] or ''
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if config['MENU'] then
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css_menu = default_css_menu_with
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end
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local introduction = config['INTRO'] or ''
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-- other default values
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categ_extension = config['CATEGORIES_EXT'] or default_categ_extension
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css_name = config['CSS_NAME'] or default_css_name
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-- get pages
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index = readFile(currentpath .. '/' .. component .. '/' .. index_filename, 'r')
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template_categ = readFile(currentpath .. '/' .. component .. '/' .. template_categ_filename, 'r')
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template_element = readFile(currentpath .. '/' .. component .. '/' .. template_element_filename, 'r')
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-- open menu file if menu have been activated
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local menu_content = ''
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if menu ~= '' then
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menu_content = readFile(component .. '/' .. menu, 'r')
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end
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-- open introduction file if intro have been activated
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local introduction_content = ''
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if introduction ~= '' then
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introduction_content = readFile(component .. '/' .. introduction, 'r')
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end
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-- Check if public and image directory exists
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for i, dir in pairs({destination, destination .. '/' .. img_destination}) do
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if lfs.attributes(dir) == nil then
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assert(lfs.mkdir(dir))
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end
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end
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-- Browse categ directory
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local categories_files = listing (currentpath .. '/' .. categ, categ_extension)
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local content = ''
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if categories_files then
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for k,v in pairs(categories_files) do
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-- read category content
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attr = lfs.attributes(v)
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if attr and attr.mode == 'file' then
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content = content .. process(v, template_categ, template_element, img_destination, destination, img_source, default_img)
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end
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end
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else
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print ("-- No category file found!")
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end
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-- Create index file in destination directory
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result = assert(io.open(destination .. '/' .. main_template, 'wb'))
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-- create substitution table
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substitutions = {
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TITLE=config['TITRE'] .. ' - Accueil',
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PORTEAIL_TITLE=config['TITRE'],
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CONTENT=content,
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INTRODUCTION=introduction_content,
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MENU=menu_content,
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CSS_COLOR=css_filename,
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CSS_NAME=css_name,
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DEFAULT_CSS=css_menu,
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}
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-- replace variables in result
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homepage = replace(index, substitutions)
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assert(result:write(homepage))
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-- close file
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assert(result:close())
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-- Copy miscellaneous files to destination
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to_be_copied = {
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component .. '/' .. 'html5.js',
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css_source .. '/' .. css_filename,
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css_source .. '/' .. css_menu,
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}
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for i, filepath in pairs(to_be_copied) do
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fileattr = lfs.attributes(filepath)
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if not fileattr or fileattr.mode ~= 'file' then
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print (filepath .. " doesn't exist or is not a file!")
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os.exit(1)
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end
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dest = destination .. '/' .. basename(filepath)
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filecontent = readFile(filepath, 'r')
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destfile = assert(io.open(dest, 'wb'))
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assert(destfile:write(filecontent))
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assert(destfile:close())
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end
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--[[ END ]]--
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Olivier DOSSMANN