overleaf/services/web/app/coffee/infrastructure/Modules.coffee

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fs = require "fs"
Path = require "path"
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jade = require "jade"
async = require "async"
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MODULE_BASE_PATH = Path.resolve(__dirname + "/../../../modules")
module.exports = Modules =
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modules: []
loadModules: () ->
for moduleName in fs.readdirSync(MODULE_BASE_PATH)
if fs.existsSync(Path.join(MODULE_BASE_PATH, moduleName, "index.js"))
loadedModule = require(Path.join(MODULE_BASE_PATH, moduleName, "index"))
loadedModule.name = moduleName
@modules.push loadedModule
Modules.attachHooks()
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applyRouter: (webRouter, apiRouter) ->
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for module in @modules
module.router?.apply(webRouter, apiRouter)
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viewIncludes: {}
loadViewIncludes: (app) ->
@viewIncludes = {}
for module in @modules
for view, partial of module.viewIncludes or {}
@viewIncludes[view] ||= []
@viewIncludes[view].push fs.readFileSync(Path.join(MODULE_BASE_PATH, module.name, "app/views", partial + ".jade"))
moduleIncludes: (view, locals) ->
partials = Modules.viewIncludes[view] or []
html = ""
for partial in partials
compiler = jade.compile(partial, doctype: "html")
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html += compiler(locals)
return html
moduleIncludesAvailable: (view) ->
return (Modules.viewIncludes[view] or []).length > 0
attachHooks: () ->
for module in @modules
if module.hooks?
for hook, method of module.hooks
Modules.hooks.attach hook, method
hooks:
_hooks: {}
attach: (name, method) ->
@_hooks[name] ?= []
@_hooks[name].push method
fire: (name, args..., callback) ->
methods = @_hooks[name] or []
call_methods = methods.map (method) ->
return (cb) -> method(args..., cb)
async.series call_methods, (error, results) ->
return callback(error) if error?
return callback null, results
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Modules.loadModules()