Documentation for this module may be created at Module:DependencyList/doc
require("strict");
local p = {}
local libraryUtil = require( 'libraryUtil' )
local arr = require( 'Module:Array' )
local yn = require( 'Module:Yesno' )
local param = require( 'Module:Paramtest' )
local dpl = require( 'Module:DPLlua' )
local userError = require("Module:User error")
local mHatnote = require('Module:Hatnote')
local mHatlist = require('Module:Hatnote list')
local moduleIsUsed = false
local COLLAPSE_LIST_LENGTH_THRESHOLD = 1
local MAX_DYNAMIC_REQUIRE_LIST_LENGTH = 30
local dynamicRequireListQueryCache = {}
local builtins = {
--[[
["libraryUtil"] = {
link = "mw:Special:MyLanguage/Extension:Scribunto/Lua reference manual#libraryUtil",
categories = {},
}
]]
["strict"] = {
link = "mw:Special:MyLanguage/Extension:Scribunto/Lua reference manual#strict",
categories = { "Strict mode modules" },
},
};
--- Used in case 'require( varName )' is found. Attempts to find a string value stored in 'varName'.
---@param content string The content of the module to search in
---@param varName string
---@return string
local function substVarValue( content, varName )
local res = content:match( varName .. '%s*=%s*(%b""%s-%.*)' ) or content:match( varName .. "%s*=%s*(%b''%s-%.*)" ) or ''
if res:find( '^(["\'])[Mm]odule:[%S]+%1' ) and not res:find( '%.%.' ) and not res:find( '%%%a' ) then
return mw.text.trim( res )
else
return ''
end
end
---@param capture string
---@param content string The content of the module to search in
---@return string
local function extractModuleName( capture, content )
capture = capture:gsub( '^%(%s*(.-)%s*%)$', '%1' )
if capture:find( '^(["\']).-%1$' ) then -- Check if it is already a pure string
return capture
elseif capture:find( '^[%a_][%w_]*$' ) then -- Check if if is a single variable
return substVarValue( content, capture )
end
return capture
end
---@param str string
---@return string
local function formatPageName( str )
local name = mw.text.trim(str)
:gsub( '^([\'\"])(.-)%1$', function(_, x) return x end ) -- Only remove quotes at start and end of string if both are the same type
:gsub( '_', ' ' )
:gsub( '^.', string.upper )
:gsub( ':.', string.upper )
return name
end
---@param str string
---@return string
local function formatModuleName( str, allowBuiltins )
if allowBuiltins then
local name = mw.text.trim(str)
-- Only remove quotes at start and end of string if both are the same type
:gsub([[^(['"])(.-)%1$]], function(_, x) return x end);
local builtin = builtins[name];
if builtin then
return builtin.link .. "|" .. name, builtin;
end
end
local module = formatPageName( str )
if not string.find( module, '^[Mm]odule:' ) then
module = 'Module:' .. module
end
return module
end
local function dualGmatch( str, pat1, pat2 )
local f1 = string.gmatch( str, pat1 )
local f2 = string.gmatch( str, pat2 )
return function()
return f1() or f2()
end
end
--- Used in case a construct like 'require( "Module:wowee/" .. isTheBest )' is found.
--- Will return a list of pages which satisfy this pattern where 'isTheBest' can take any value.
---@param query string
---@return string[] Sequence of strings
local function getDynamicRequireList( query )
local isDynamic = true;
if query:find( '%.%.' ) then
query = mw.text.split( query, '..', true )
query = arr.map( query, function(x) return mw.text.trim(x) end )
query = arr.map( query, function(x) return (x:match('^[\'\"](.-)[\'\"]$') or '%') end )
query = table.concat( query )
else
local _; _, query = query:match( '(["\'])(.-)%1' )
if query == nil then
return {}, isDynamic
end
local replacements;
query, replacements = query:gsub( '%%%a', '%%' )
if replacements == 0 then
isDynamic = false;
end
end
query = query:gsub( '^[Mm]odule:', '' )
if query:find( '^[Dd]ata/' ) then
return { 'Module:' .. query }, isDynamic; -- This format will later be used by formatDynamicQueryLink()
end
if dynamicRequireListQueryCache[ query ] then
return dynamicRequireListQueryCache[ query ], isDynamic;
end
local list = dpl.ask{
namespace = 'Module',
titlematch = query,
nottitlematch = '%/doc|'..query..'/%',
distinct = 'strict',
ignorecase = true,
ordermethod = 'title',
count = MAX_DYNAMIC_REQUIRE_LIST_LENGTH + 1,
skipthispage = 'no',
allowcachedresults = true,
cacheperiod = 604800 -- One week
}
if #list > MAX_DYNAMIC_REQUIRE_LIST_LENGTH then
list = { 'Module:' .. query }
end
dynamicRequireListQueryCache[ query ] = list
return list, isDynamic;
end
--- Returns a list of modules loaded and required by module 'moduleName'.
---@param moduleName string
---@param searchForUsedTemplates boolean
---@return string[], string[], string[], string[]
local function getRequireList( moduleName, searchForUsedTemplates )
local content = mw.title.new( moduleName ):getContent()
local requireList = arr{}
local loadDataList = arr{}
local usedTemplateList = arr{}
local dynamicRequirelist = arr{}
local dynamicLoadDataList = arr{}
local extraCategories = arr{}
assert( content ~= nil, string.format( '%s does not exist', moduleName ) )
content = content:gsub( '%-%-%[(=-)%[.-%]%1%]', '' ):gsub( '%-%-[^\n]*', '' ) -- Strip comments
for match in dualGmatch( content, 'require%s*(%b())', 'require%s*((["\'])%s*[Mm]odule:.-%2)' ) do
match = mw.text.trim( match )
match = extractModuleName( match, content )
if match:find( '%.%.' ) or match:find( '%%%a' ) then
for _, x in ipairs( getDynamicRequireList( match ) ) do
table.insert( dynamicRequirelist, x )
end
elseif match ~= '' then
local builtin;
match, builtin = formatModuleName( match, true )
table.insert( requireList, match )
if builtin then
local builtinCategories = builtin.categories;
if type(builtinCategories) == "table" then
for _, x in ipairs(builtinCategories) do
table.insert(extraCategories, x);
end
end
end
end
end
for match in dualGmatch( content, 'mw%.loadData%s*(%b())', 'mw%.loadData%s*((["\'])%s*[Mm]odule:.-%2)' ) do
match = mw.text.trim( match )
match = extractModuleName( match, content )
if match:find( '%.%.' ) or match:find( '%%%a' ) then
for _, x in ipairs( getDynamicRequireList( match ) ) do
table.insert( dynamicLoadDataList, x )
end
elseif match ~= '' then
match = formatModuleName( match, true )
table.insert( loadDataList, match )
end
end
for match in dualGmatch( content, 'mw%.loadJsonData%s*(%b())', 'mw%.loadJsonData%s*((["\'])%s*[Mm]odule:.-%2)' ) do
match = mw.text.trim( match )
match = extractModuleName( match, content )
if match:find( '%.%.' ) or match:find( '%%%a' ) then
for _, x in ipairs( getDynamicRequireList( match ) ) do
table.insert( dynamicLoadDataList, x )
end
elseif match ~= '' then
match = formatModuleName( match, true )
table.insert( loadDataList, match )
end
end
for func, match in string.gmatch( content, 'pcall%s*%(([^,]+),([^%),]+)' ) do
func = mw.text.trim( func )
match = mw.text.trim( match )
local dynList, isDynamic;
if func == 'require' then
dynList, isDynamic = getDynamicRequireList(match);
if (isDynamic == false and #dynList == 1) then
table.insert(requireList, dynList[1]);
else for _, x in ipairs(dynList) do
table.insert( dynamicRequirelist, x )
end end
elseif func == 'mw.loadData' then
dynList, isDynamic = getDynamicRequireList(match);
if (isDynamic == false and #dynList == 1) then
table.insert(loadDataList, dynList[1]);
else for _, x in ipairs(dynList) do
table.insert( dynamicLoadDataList, x )
end end
end
end
if searchForUsedTemplates then
for preprocess in string.gmatch( content, ':preprocess%s*(%b())' ) do
local function recursiveGMatch( str, pat )
local list = {}
local i = 0
repeat
for match in string.gmatch( list[i] or str, pat ) do
table.insert( list, match )
end
i = i + 1
until i > #list or i > 100
i = 0
return function()
i = i + 1
return list[i]
end
end
for template in recursiveGMatch( preprocess, '{(%b{})}' ) do
local name = string.match( template, '{(.-)[|{}]' )
if name ~= '' then
if name:find( ':' ) then
local ns = name:match( '^(.-):' )
if arr.contains( {'', 'template', 'user'}, ns:lower() ) then
table.insert( usedTemplateList, name )
elseif ns == ns:upper() then
table.insert( usedTemplateList, ns ) -- Probably a magic word
end
else
if name:match( '^%u+$' ) or name == '!' then
table.insert( usedTemplateList, name ) -- Probably a magic word
else
table.insert( usedTemplateList, 'Template:'..name )
end
end
end
end
end
end
requireList = requireList .. dynamicRequirelist:reject( loadDataList )
requireList = requireList:unique()
loadDataList = loadDataList .. dynamicLoadDataList:reject( requireList )
loadDataList = loadDataList:unique()
usedTemplateList = usedTemplateList:unique()
extraCategories = extraCategories:unique()
table.sort( requireList )
table.sort( loadDataList )
table.sort( usedTemplateList )
table.sort( extraCategories )
return requireList, loadDataList, usedTemplateList, extraCategories
end
--- Returns a list with module and function names used in all '{{#Invoke:moduleName|funcName}}' found on page 'templateName'.
---@param templateName string
---@return table<string, string>[]
local function getInvokeCallList( templateName )
local content = mw.title.new( templateName ):getContent()
local invokeList = {}
assert( content ~= nil, string.format( '%s does not exist', templateName ) )
for moduleName, funcName in string.gmatch( content, '{{[{|safeubt:}]-#[Ii]nvoke:([^|]+)|([^}|]+)[^}]*}}' ) do
moduleName = formatModuleName( moduleName )
funcName = mw.text.trim( funcName )
if string.find( funcName, '^{{{' ) then
funcName = funcName .. '}}}'
end
table.insert( invokeList, {moduleName=moduleName, funcName=funcName} )
end
invokeList = arr.unique( invokeList, function(x) return x.moduleName..x.funcName end )
table.sort( invokeList, function(x, y) return x.moduleName..x.funcName < y.moduleName..y.funcName end )
return invokeList
end
---@param pageName string
---@param addCategories boolean
---@return string
local function messageBoxUnused( pageName, addCategories )
local mbox = require( 'Module:Mbox' )._mbox
local category = addCategories and '[[Category:Unused modules]]' or ''
return mbox(
'This module is unused.',
string.format( 'This module is neither invoked by a template nor required/loaded by another module. If this is in error, make sure to add <code>{{[[Template:Documentation|Documentation]]}}</code>/<code>{{[[Template:No documentation|No documentation]]}}</code> to the calling template\'s or parent\'s module documentation.',
pageName
),
{ icon = 'WikimediaUI-Alert.svg' }
) .. category
end
local function collapseList( list, id, listType )
local text = string.format( '%d %s', #list, listType )
local button = '<span>' .. text .. ':</span> '
local content = mHatlist.andList( list, false )
return { tostring( button ) .. tostring( content ) }
end
--- Creates a link to [[Special:Search]] showing all pages found by getDynamicRequireList() in case it found more than MAX_DYNAMIC_REQUIRE_LIST_LENGTH pages.
---@param query string @This will be in a format like 'Module:Wowee/%' or 'Module:Wowee/%/data'
---@return string
local function formatDynamicQueryLink( query )
local prefix = query:match( '^([^/]+)' )
local linkText = query:gsub( '%%', '< ... >' )
query = query:gsub( '^Module:', '' )
query = query:gsub( '([^/]+)/?', function ( match )
if match == '%' then
return '\\/[^\\/]+'
else
return '\\/"' .. match .. '"'
end
end )
query = query:gsub( '^\\/', '' )
query = string.format(
'intitle:/%s%s/i -intitle:/%s\\/""/i -intitle:doc prefix:"%s"',
query,
query:find( '"$' ) and '' or '""',
query,
prefix
)
return string.format( '<span class="plainlinks">[%s %s]</span>', tostring( mw.uri.fullUrl( 'Special:Search', { search = query } ) ), linkText )
end
---@param templateName string
---@param addCategories boolean
---@param invokeList table<string, string>[] @This is the list returned by getInvokeCallList()
---@return string
local function formatInvokeCallList( templateName, addCategories, invokeList )
local category = addCategories and '[[Category:Lua-based templates]]' or ''
local res = {}
for _, item in ipairs( invokeList ) do
local msg = string.format(
"'''%s''' invokes function '''%s''' in [[%s]] using Lua.",
templateName,
item.funcName,
item.moduleName
)
table.insert( res, mHatnote._hatnote( msg, { icon='WikimediaUI-Code.svg' } ) )
end
if #invokeList > 0 then
table.insert( res, category )
end
return table.concat( res )
end
---@param moduleName string
---@param addCategories boolean
---@param whatLinksHere string @A list generated by a dpl of pages in the Template namespace which link to moduleName.
---@return string
local function formatInvokedByList( moduleName, addCategories, whatLinksHere )
local function lcfirst( str )
return string.gsub( str, '^[Mm]odule:.', string.lower )
end
local templateData = arr.map( whatLinksHere, function(x) return {templateName=x, invokeList=getInvokeCallList(x)} end )
templateData = arr.filter( templateData, function(x)
return arr.any( x.invokeList, function(y)
return lcfirst(y.moduleName) == lcfirst(moduleName)
end )
end )
local invokedByList = {}
for _, template in ipairs( templateData ) do
for _, invoke in ipairs( template.invokeList ) do
table.insert( invokedByList, string.format( "function '''%s''' is invoked by [[%s]]", invoke.funcName, template.templateName ) )
end
end
table.sort( invokedByList)
local res = {}
if #invokedByList > COLLAPSE_LIST_LENGTH_THRESHOLD then
local msg = string.format(
"'''%s''' is invoked by %s.",
moduleName,
collapseList( invokedByList, 'invokedBy', 'templates' )[1]
)
table.insert( res, mHatnote._hatnote( msg, { icon='WikimediaUI-Code.svg' } ) )
else
for _, item in ipairs( invokedByList ) do
local msg = string.format(
"'''%s's''' %s.",
moduleName,
item
)
table.insert( res, mHatnote._hatnote( msg, { icon='WikimediaUI-Code.svg' } ) )
end
end
if #templateData > 0 then
moduleIsUsed = true
table.insert( res, (addCategories and '[[Category:Template invoked modules]]' or '') )
end
return table.concat( res )
end
---@param moduleName string
---@param addCategories boolean
---@param whatLinksHere string @A list generated by a dpl of pages in the Module namespace which link to moduleName.
---@return string
local function formatRequiredByList( moduleName, addCategories, whatLinksHere )
local childModuleData = arr.map( whatLinksHere, function ( title )
local requireList, loadDataList = getRequireList( title )
return {name=title, requireList=requireList, loadDataList=loadDataList}
end )
local requiredByList = arr.map( childModuleData, function ( item )
if arr.any( item.requireList, function(x) return x:lower()==moduleName:lower() end ) then
if item.name:find( '%%' ) then
return formatDynamicQueryLink( item.name )
else
return '[[' .. item.name .. ']]'
end
end
end )
local loadedByList = arr.map( childModuleData, function ( item )
if arr.any( item.loadDataList, function(x) return x:lower()==moduleName:lower() end ) then
if item.name:find( '%%' ) then
return formatDynamicQueryLink( item.name )
else
return '[[' .. item.name .. ']]'
end
end
end )
if #requiredByList > 0 or #loadedByList > 0 then
moduleIsUsed = true
end
if #requiredByList > COLLAPSE_LIST_LENGTH_THRESHOLD then
requiredByList = collapseList( requiredByList, 'requiredBy', 'modules' )
end
if #loadedByList > COLLAPSE_LIST_LENGTH_THRESHOLD then
loadedByList = collapseList( loadedByList, 'loadedBy', 'modules' )
end
local res = {}
for _, requiredByModuleName in ipairs( requiredByList ) do
local msg = string.format(
"'''%s''' is required by %s.",
moduleName,
requiredByModuleName
)
table.insert( res, mHatnote._hatnote( msg, { icon='WikimediaUI-Code.svg' } ) )
end
if #requiredByList > 0 then
table.insert( res, (addCategories and '[[Category:Modules required by modules]]' or '') )
end
for _, loadedByModuleName in ipairs( loadedByList ) do
local msg = string.format(
"'''%s''' is loaded by %s.",
moduleName,
requiredByModuleName
)
table.insert( res, mHatnote._hatnote( msg, { icon='WikimediaUI-Code.svg' } ) )
end
if #loadedByList > 0 then
table.insert( res, (addCategories and '[[Category:Module data]]' or '') )
end
return table.concat( res )
end
local function formatRequireList( currentPageName, addCategories, requireList )
local res = {}
if #requireList > COLLAPSE_LIST_LENGTH_THRESHOLD then
requireList = collapseList( requireList, 'require', 'modules' )
end
for _, requiredModuleName in ipairs( requireList ) do
local msg = string.format(
"'''%s''' requires %s.",
currentPageName,
requiredModuleName
)
table.insert( res, mHatnote._hatnote( msg, { icon='WikimediaUI-Code.svg' } ) )
end
if #requireList > 0 then
table.insert( res, (addCategories and '[[Category:Modules requiring modules]]' or '') )
end
return table.concat( res )
end
local function formatLoadDataList( currentPageName, addCategories, loadDataList )
local res = {}
if #loadDataList > COLLAPSE_LIST_LENGTH_THRESHOLD then
loadDataList = collapseList( loadDataList, 'loadData', 'modules' )
end
for _, loadedModuleName in ipairs( loadDataList ) do
local msg = string.format(
"'''%s''' loads data from %s.",
currentPageName,
loadedModuleName
)
table.insert( res, mHatnote._hatnote( msg, { icon='WikimediaUI-Code.svg' } ) )
end
if #loadDataList > 0 then
table.insert( res, (addCategories and '[[Category:Modules using data]]' or '') )
end
return table.concat( res )
end
local function formatUsedTemplatesList( currentPageName, addCategories, usedTemplateList )
local res = {}
if #usedTemplateList > COLLAPSE_LIST_LENGTH_THRESHOLD then
usedTemplateList = collapseList( usedTemplateList, 'usedTemplates', 'templates' )
end
for _, templateName in ipairs( usedTemplateList ) do
local msg = string.format(
"'''%s''' transcludes [[%s]] using <samp>frame:preprocess()</samp>.",
currentPageName,
templateName
)
table.insert( res, mHatnote._hatnote( msg, { icon='WikimediaUI-Code.svg' } ) )
end
return table.concat( res )
end
function p.main( frame )
local args = frame:getParent().args
return p._main( args[1], args.category, args.isUsed )
end
---@param currentPageName string|nil
---@param addCategories boolean|string|nil
---@return string
function p._main( currentPageName, addCategories, isUsed )
libraryUtil.checkType( 'Module:RequireList._main', 1, currentPageName, 'string', true )
libraryUtil.checkTypeMulti( 'Module:RequireList._main', 2, addCategories, {'boolean', 'string', 'nil'} )
libraryUtil.checkTypeMulti( 'Module:RequireList._main', 3, isUsed, {'boolean', 'string', 'nil'} )
local title = mw.title.getCurrentTitle()
-- Leave early if not in module or template namespace
if param.is_empty( currentPageName ) and
( not arr.contains( {'Module', 'Template'}, title.nsText ) ) then
return ''
end
currentPageName = param.default_to( currentPageName, title.fullText )
currentPageName = string.gsub( currentPageName, '/[Dd]oc$', '' )
currentPageName = formatPageName( currentPageName )
addCategories = yn( param.default_to( addCategories, title.subpageText~='doc' ) )
moduleIsUsed = yn( param.default_to( isUsed, false ) )
if title.text:lower():find( 'sandbox' ) then
moduleIsUsed = true -- Don't show sandbox modules as unused
end
if currentPageName:find( '^Template:' ) then
local ok, invokeList = pcall( getInvokeCallList, currentPageName )
if ok then
return formatInvokeCallList( currentPageName, addCategories, invokeList )
else
return userError(invokeList)
end
end
local whatTemplatesLinkHere, whatModulesLinkHere = dpl.ask( {
namespace = 'Template',
linksto = currentPageName,
distinct = 'strict',
ignorecase = true,
ordermethod = 'title',
allowcachedresults = true,
cacheperiod = 604800 -- One week
}, {
namespace = 'Module',
linksto = currentPageName,
nottitlematch = '%/doc%|' .. currentPageName:gsub( 'Module:', '' ),
distinct = 'strict',
ignorecase = true,
ordermethod = 'title',
allowcachedresults = true,
cacheperiod = 604800 -- One week
} )
local requireList, loadDataList, usedTemplateList, extraCategories;
do
local ok;
ok, requireList, loadDataList, usedTemplateList, extraCategories = pcall(getRequireList, currentPageName, true);
if not ok then
return userError(requireList);
end
end
requireList = arr.map( requireList, function ( moduleName )
if moduleName:find( '%%' ) then
return formatDynamicQueryLink( moduleName )
else
return '[[' .. moduleName .. ']]'
end
end )
loadDataList = arr.map( loadDataList, function ( moduleName )
if moduleName:find( '%%' ) then
return formatDynamicQueryLink( moduleName )
else
return '[[' .. moduleName .. ']]'
end
end )
usedTemplateList = arr.map( usedTemplateList, function( templateName )
if string.find( templateName, ':' ) then -- Real templates are prefixed by a namespace, magic words are not
return '[['..templateName..']]'
else
return "'''{{"..templateName.."}}'''" -- Magic words don't have a page so make them bold instead
end
end )
local res = {}
table.insert( res, formatInvokedByList( currentPageName, addCategories, whatTemplatesLinkHere ) )
table.insert( res, formatRequireList( currentPageName, addCategories, requireList ) )
table.insert( res, formatLoadDataList( currentPageName, addCategories, loadDataList ) )
table.insert( res, formatUsedTemplatesList( currentPageName, addCategories, usedTemplateList ) )
table.insert( res, formatRequiredByList( currentPageName, addCategories, whatModulesLinkHere ) )
if addCategories then
extraCategories = arr.map(extraCategories, function(categoryName)
return "[[Category:" .. categoryName .. "]]";
end);
table.insert(res, table.concat(extraCategories));
end
if not moduleIsUsed then
table.insert( res, 1, messageBoxUnused( currentPageName:gsub( 'Module:', '' ), addCategories ) )
end
return table.concat( res )
end
return p
-- </nowiki>