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https://github.com/discourse/discourse.git
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189cb3ff12
- new hidden site setting 'migrate_to_new_scheme' (defaults to false) - new rake tasks to toggle migration to new scheme - FIX: migrate_to_new_scheme also works with CDN - PERF: improve perf of the DbHelper.remap method - REFACTOR: UrlHelper is now a class
379 lines
10 KiB
Ruby
379 lines
10 KiB
Ruby
require "digest/sha1"
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################################################################################
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# backfill_shas #
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################################################################################
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task "uploads:backfill_shas" => :environment do
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RailsMultisite::ConnectionManagement.each_connection do |db|
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puts "Backfilling #{db}..."
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Upload.where(sha1: nil).find_each do |u|
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begin
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path = Discourse.store.path_for(u)
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u.sha1 = Digest::SHA1.file(path).hexdigest
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u.save!
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putc "."
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rescue Errno::ENOENT
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putc "X"
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end
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end
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end
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puts "", "Done"
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end
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################################################################################
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# migrate_from_s3 #
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################################################################################
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task "uploads:migrate_from_s3" => :environment do
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require "file_store/local_store"
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require "file_helper"
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max_file_size_kb = [SiteSetting.max_image_size_kb, SiteSetting.max_attachment_size_kb].max.kilobytes
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local_store = FileStore::LocalStore.new
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puts "Deleting all optimized images..."
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puts
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OptimizedImage.destroy_all
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puts "Migrating uploads from S3 to local storage"
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puts
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Upload.find_each do |upload|
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# remove invalid uploads
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if upload.url.blank?
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upload.destroy!
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next
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end
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# no need to download an upload twice
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if local_store.has_been_uploaded?(upload.url)
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putc "."
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next
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end
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# try to download the upload
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begin
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# keep track of the previous url
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previous_url = upload.url
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# fix the name of pasted images
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upload.original_filename = "blob.png" if upload.original_filename == "blob"
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# download the file (in a temp file)
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temp_file = FileHelper.download("http:" + previous_url, max_file_size_kb, "from_s3")
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# store the file locally
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upload.url = local_store.store_upload(temp_file, upload)
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# save the new url
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if upload.save
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# update & rebake the posts (if any)
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Post.where("raw ILIKE ?", "%#{previous_url}%").find_each do |post|
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post.raw = post.raw.gsub(previous_url, upload.url)
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post.save
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end
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putc "#"
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else
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putc "X"
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end
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# close the temp_file
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temp_file.close! if temp_file.respond_to? :close!
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rescue
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putc "X"
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end
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end
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puts
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end
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################################################################################
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# migrate_to_s3 #
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################################################################################
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task "uploads:migrate_to_s3" => :environment do
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require "file_store/s3_store"
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require "file_store/local_store"
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require "db_helper"
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ENV["RAILS_DB"] ? migrate_to_s3 : migrate_to_s3_all_sites
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end
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def migrate_to_s3_all_sites
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RailsMultisite::ConnectionManagement.each_connection { migrate_to_s3 }
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end
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def migrate_to_s3
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# make sure s3 is enabled
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if !SiteSetting.enable_s3_uploads
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puts "You must enable s3 uploads before running that task"
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return
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end
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db = RailsMultisite::ConnectionManagement.current_db
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puts "Migrating uploads to S3 (#{SiteSetting.s3_upload_bucket}) for '#{db}'..."
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# will throw an exception if the bucket is missing
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s3 = FileStore::S3Store.new
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local = FileStore::LocalStore.new
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# Migrate all uploads
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Upload.where.not(sha1: nil)
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.where("url NOT LIKE '#{s3.absolute_base_url}%'")
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.find_each do |upload|
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# remove invalid uploads
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if upload.url.blank?
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upload.destroy!
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next
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end
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# store the old url
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from = upload.url
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# retrieve the path to the local file
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path = local.path_for(upload)
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# make sure the file exists locally
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if !File.exists?(path)
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putc "X"
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next
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end
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begin
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file = File.open(path)
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content_type = `file --mime-type -b #{path}`.strip
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to = s3.store_upload(file, upload, content_type)
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rescue
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putc "X"
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next
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ensure
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file.try(:close!) rescue nil
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end
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# remap the URL
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DbHelper.remap(from, to)
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putc "."
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end
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end
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################################################################################
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# clean_up #
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################################################################################
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task "uploads:clean_up" => :environment do
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RailsMultisite::ConnectionManagement.each_connection do |db|
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puts "Cleaning up uploads and thumbnails for '#{db}'..."
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if Discourse.store.external?
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puts "This task only works for internal storages."
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next
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end
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public_directory = "#{Rails.root}/public"
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##
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## DATABASE vs FILE SYSTEM
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##
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# uploads & avatars
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Upload.find_each do |upload|
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path = "#{public_directory}#{upload.url}"
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if !File.exists?(path)
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upload.destroy rescue nil
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putc "#"
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else
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putc "."
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end
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end
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# optimized images
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OptimizedImage.find_each do |optimized_image|
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path = "#{public_directory}#{optimized_image.url}"
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if !File.exists?(path)
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optimized_image.destroy rescue nil
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putc "#"
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else
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putc "."
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end
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end
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##
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## FILE SYSTEM vs DATABASE
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##
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uploads_directory = "#{public_directory}/uploads/#{db}"
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# avatars (no avatar should be stored in that old directory)
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FileUtils.rm_rf("#{uploads_directory}/avatars") rescue nil
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# uploads
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Dir.glob("#{uploads_directory}/*/*.*").each do |f|
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url = "/uploads/#{db}/" << f.split("/uploads/#{db}/")[1]
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if !Upload.where(url: url).exists?
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FileUtils.rm(f) rescue nil
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putc "#"
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else
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putc "."
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end
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end
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# optimized images
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Dir.glob("#{uploads_directory}/_optimized/*/*/*.*").each do |f|
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url = "/uploads/#{db}/_optimized/" << f.split("/uploads/#{db}/_optimized/")[1]
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if !OptimizedImage.where(url: url).exists?
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FileUtils.rm(f) rescue nil
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putc "#"
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else
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putc "."
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end
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end
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puts
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end
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end
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################################################################################
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# missing #
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################################################################################
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# list all missing uploads and optimized images
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task "uploads:missing" => :environment do
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public_directory = "#{Rails.root}/public"
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RailsMultisite::ConnectionManagement.each_connection do |db|
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if Discourse.store.external?
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puts "This task only works for internal storages."
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next
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end
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Upload.find_each do |upload|
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# could be a remote image
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next unless upload.url =~ /^\/[^\/]/
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path = "#{public_directory}#{upload.url}"
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bad = true
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begin
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bad = false if File.size(path) != 0
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rescue
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# something is messed up
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end
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puts path if bad
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end
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OptimizedImage.find_each do |optimized_image|
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# remote?
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next unless optimized_image.url =~ /^\/[^\/]/
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path = "#{public_directory}#{optimized_image.url}"
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bad = true
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begin
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bad = false if File.size(path) != 0
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rescue
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# something is messed up
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end
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puts path if bad
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end
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end
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end
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################################################################################
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# regenerate_missing_optimized #
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################################################################################
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# regenerate missing optimized images
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task "uploads:regenerate_missing_optimized" => :environment do
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ENV["RAILS_DB"] ? regenerate_missing_optimized : regenerate_missing_optimized_all_sites
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end
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def regenerate_missing_optimized_all_sites
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RailsMultisite::ConnectionManagement.each_connection { regenerate_missing_optimized }
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end
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def regenerate_missing_optimized
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db = RailsMultisite::ConnectionManagement.current_db
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puts "Regenerating missing optimized images for '#{db}'..."
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if Discourse.store.external?
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puts "This task only works for internal storages."
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return
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end
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public_directory = "#{Rails.root}/public"
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missing_uploads = Set.new
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OptimizedImage.includes(:upload)
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.where("LENGTH(COALESCE(url, '')) > 0")
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.where("width > 0 AND height > 0")
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.find_each do |optimized_image|
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upload = optimized_image.upload
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next unless optimized_image.url =~ /^\/[^\/]/
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next unless upload.url =~ /^\/[^\/]/
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thumbnail = "#{public_directory}#{optimized_image.url}"
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original = "#{public_directory}#{upload.url}"
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if !File.exists?(thumbnail) || File.size(thumbnail) <= 0
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# make sure the original image exists locally
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if (!File.exists?(original) || File.size(original) <= 0) && upload.origin.present?
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# try to fix it by redownloading it
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begin
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downloaded = FileHelper.download(upload.origin, SiteSetting.max_image_size_kb.kilobytes, "discourse-missing", true) rescue nil
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if downloaded && downloaded.size > 0
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FileUtils.mkdir_p(File.dirname(original))
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File.open(original, "wb") { |f| f.write(downloaded.read) }
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end
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ensure
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downloaded.try(:close!) if downloaded.respond_to?(:close!)
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end
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end
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if File.exists?(original) && File.size(original) > 0
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FileUtils.mkdir_p(File.dirname(thumbnail))
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OptimizedImage.resize(original, thumbnail, optimized_image.width, optimized_image.height)
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putc "#"
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else
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missing_uploads << original
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putc "X"
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end
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else
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putc "."
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end
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end
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puts "", "Done"
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if missing_uploads.size > 0
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puts "Missing uploads:"
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missing_uploads.sort.each { |u| puts u }
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end
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end
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################################################################################
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# migrate_to_new_scheme #
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################################################################################
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task "uploads:start_migration" => :environment do
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SiteSetting.migrate_to_new_scheme = true
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puts "Migration started!"
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end
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task "uploads:stop_migration" => :environment do
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SiteSetting.migrate_to_new_scheme = false
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puts "Migration stoped!"
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end
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