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- Settings = require "settings-sharelatex"
- logger = require "logger-sharelatex"
- crypto = require "crypto"
- ProjectEntityHandler = require "../Project/ProjectEntityHandler"
- # The "state" of a project is a hash of the relevant attributes in the
- # project object in this case we only need the rootFolder.
- #
- # The idea is that it will change if any doc or file is
- # created/renamed/deleted, and also if the content of any file (not
- # doc) changes.
- #
- # When the hash changes the full set of files on the CLSI will need to
- # be updated. If it doesn't change then we can overwrite changed docs
- # in place on the clsi, getting them from the docupdater.
- #
- # The docupdater is responsible for setting the key in redis, and
- # unsetting it if it removes any documents from the doc updater.
- buildState = (s) ->
- return crypto.createHash('sha1').update(s, 'utf8').digest('hex')
- module.exports = ClsiStateManager =
- computeHash: (project, options, callback = (err, hash) ->) ->
- ProjectEntityHandler.getAllEntitiesFromProject project, (err, docs, files) ->
- fileList = ("#{f.file._id}:#{f.file.rev}:#{f.file.created}:#{f.path}" for f in files or [])
- docList = ("#{d.doc._id}:#{d.path}" for d in docs or [])
- sortedEntityList = [docList..., fileList...].sort()
- # ignore the isAutoCompile options as it doesn't affect the
- # output, but include all other options e.g. draft
- optionsList = ("option #{key}:#{value}" for key, value of options or {} when not (key in ['isAutoCompile']))
- sortedOptionsList = optionsList.sort()
- hash = buildState([sortedEntityList..., sortedOptionsList...].join("\n"))
- callback(null, hash)
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