mirror of
https://github.com/overleaf/overleaf.git
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69 lines
2.1 KiB
CoffeeScript
69 lines
2.1 KiB
CoffeeScript
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UrlCache = require "./UrlCache"
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Path = require "path"
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fs = require "fs"
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async = require "async"
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mkdirp = require "mkdirp"
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OutputFileFinder = require "./OutputFileFinder"
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Metrics = require "./Metrics"
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module.exports = ResourceWriter =
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syncResourcesToDisk: (project_id, resources, basePath, callback = (error) ->) ->
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@_removeExtraneousFiles resources, basePath, (error) =>
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return callback(error) if error?
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jobs = for resource in resources
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do (resource) =>
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(callback) => @_writeResourceToDisk(project_id, resource, basePath, callback)
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async.series jobs, callback
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_removeExtraneousFiles: (resources, basePath, _callback = (error) ->) ->
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timer = new Metrics.Timer("unlink-output-files")
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callback = (error) ->
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timer.done()
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_callback(error)
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OutputFileFinder.findOutputFiles resources, basePath, (error, outputFiles) ->
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return callback(error) if error?
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jobs = []
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for file in outputFiles or []
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do (file) ->
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path = file.path
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should_delete = true
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if path.match(/^output\./) or path.match(/\.aux$/)
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should_delete = false
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if path == "output.pdf" or path == "output.dvi" or path == "output.log"
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should_delete = true
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if should_delete
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jobs.push (callback) -> ResourceWriter._deleteFileIfNotDirectory Path.join(basePath, path), callback
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async.series jobs, callback
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_deleteFileIfNotDirectory: (path, callback = (error) ->) ->
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fs.stat path, (error, stat) ->
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return callback(error) if error?
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if stat.isFile()
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fs.unlink path, callback
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else
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callback()
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_writeResourceToDisk: (project_id, resource, basePath, callback = (error) ->) ->
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path = Path.normalize(Path.join(basePath, resource.path))
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if (path.slice(0, basePath.length) != basePath)
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return callback new Error("resource path is outside root directory")
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mkdirp Path.dirname(path), (error) ->
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return callback(error) if error?
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# TODO: Don't overwrite file if it hasn't been modified
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if resource.url?
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UrlCache.downloadUrlToFile(
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project_id,
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resource.url,
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path,
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resource.modified,
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callback
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)
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else
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fs.writeFile path, resource.content, callback
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