overleaf/services/web/app/coffee/Features/Project/ProjectRootDocManager.coffee

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ProjectEntityHandler = require "./ProjectEntityHandler"
ProjectEntityUpdateHandler = require "./ProjectEntityUpdateHandler"
ProjectGetter = require "./ProjectGetter"
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Path = require "path"
async = require("async")
_ = require("underscore")
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module.exports = ProjectRootDocManager =
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setRootDocAutomatically: (project_id, callback = (error) ->) ->
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ProjectEntityHandler.getAllDocs project_id, (error, docs) ->
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return callback(error) if error?
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root_doc_id = null
jobs = _.map docs, (doc, path)->
return (cb)->
rootDocId = null
for line in doc.lines || []
# We've had problems with this regex locking up CPU.
# Previously /.*\\documentclass/ would totally lock up on lines of 500kb (data text files :()
# This regex will only look from the start of the line, including whitespace so will return quickly
# regardless of line length.
match = /^\s*\\documentclass/.test(line)
isRootDoc = /\.R?tex$/.test(Path.extname(path)) and match
if isRootDoc
rootDocId = doc?._id
cb(rootDocId)
async.series jobs, (root_doc_id)->
if root_doc_id?
ProjectEntityUpdateHandler.setRootDoc project_id, root_doc_id, callback
else
callback()
setRootDocFromName: (project_id, rootDocName, callback = (error) ->) ->
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ProjectEntityHandler.getAllDocPathsFromProjectById project_id, (error, docPaths) ->
return callback(error) if error?
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# strip off leading and trailing quotes from rootDocName
rootDocName = rootDocName.replace(/^\'|\'$/g,"")
# prepend a slash for the root folder if not present
rootDocName = "/#{rootDocName}" if rootDocName[0] isnt '/'
# find the root doc from the filename
root_doc_id = null
for doc_id, path of docPaths
# docpaths have a leading / so allow matching "folder/filename" and "/folder/filename"
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if path == rootDocName
root_doc_id = doc_id
# try a basename match if there was no match
if !root_doc_id
for doc_id, path of docPaths
if Path.basename(path) == Path.basename(rootDocName)
root_doc_id = doc_id
# set the root doc id if we found a match
if root_doc_id?
ProjectEntityUpdateHandler.setRootDoc project_id, root_doc_id, callback
else
callback()
ensureRootDocumentIsSet: (project_id, callback = (error) ->) ->
ProjectGetter.getProject project_id, rootDoc_id: 1, (error, project) ->
return callback(error) if error?
if !project?
return callback new Error("project not found")
if project.rootDoc_id?
callback()
else
ProjectRootDocManager.setRootDocAutomatically project_id, callback
ensureRootDocumentIsValid: (project_id, callback = (error) ->) ->
ProjectGetter.getProject project_id, rootDoc_id: 1, (error, project) ->
return callback(error) if error?
if !project?
return callback new Error("project not found")
if project.rootDoc_id?
ProjectEntityHandler.getAllDocPathsFromProjectById project_id, (error, docPaths) ->
return callback(error) if error?
rootDocValid = false
for doc_id, _path of docPaths
if doc_id == project.rootDoc_id
rootDocValid = true
if rootDocValid
callback()
else
ProjectEntityUpdateHandler.setRootDoc project_id, null, ->
ProjectRootDocManager.setRootDocAutomatically project_id, callback
else
ProjectRootDocManager.setRootDocAutomatically project_id, callback