1 module SalvageCollection
2 # Take two input parameters: a collection uuid and reason
3 # Get "src_collection" with the given uuid
4 # Create a new collection with:
5 # src_collection.manifest_text as "invalid_manifest_text.txt"
6 # Locators from src_collection.manifest_text as "salvaged_data"
7 # Update src_collection:
8 # Set src_collection.manifest_text to: ""
9 # Append to src_collection.name: " (reason; salvaged data at new_collection.uuid)"
10 # Set portable_data_hash to "d41d8cd98f00b204e9800998ecf8427e+0"
12 require File.dirname(__FILE__) + '/../config/environment'
13 include ApplicationHelper
17 def salvage_collection_arv_put cmd
18 new_manifest = %x(#{cmd})
22 raise "Error during arv-put: #{$?} (cmd was #{cmd.inspect})"
26 # Get all the locators (and perhaps other strings that look a lot
27 # like a locators) from the original manifest, even if they don't
28 # appear in the correct positions with the correct space delimiters.
29 def salvage_collection_locator_data manifest
32 manifest.scan(/(^|[^[:xdigit:]])([[:xdigit:]]{32})((\+\d+)(\+|\b))?/) do |_, hash, _, sizehint, _|
34 locators << hash.downcase + sizehint
37 locators << hash.downcase
40 locators << 'd41d8cd98f00b204e9800998ecf8427e+0' if !locators.any?
41 return [locators, size]
44 def salvage_collection uuid, reason='salvaged - see #6277, #6859'
46 if !ENV['ARVADOS_API_TOKEN'].present? or !ENV['ARVADOS_API_HOST'].present?
47 raise "ARVADOS environment variables missing. Please set your admin user credentials as ARVADOS environment variables."
51 raise "Collection UUID is required."
54 src_collection = Collection.find_by_uuid uuid
56 raise "No collection found for #{uuid}."
59 src_manifest = src_collection.manifest_text || ''
61 # create new collection using 'arv-put' with original manifest_text as the data
62 temp_file = Tempfile.new('temp')
63 temp_file.write(src_manifest)
67 new_manifest = salvage_collection_arv_put "arv-put --as-stream --use-filename invalid_manifest_text.txt #{Shellwords::shellescape(temp_file.path)}"
71 # Get the locator data in the format [[locators], size] from the original manifest
72 locator_data = salvage_collection_locator_data src_manifest
74 new_manifest += (". #{locator_data[0].join(' ')} 0:#{locator_data[1]}:salvaged_data\n")
76 new_collection = Collection.new
77 new_collection.name = "salvaged from #{src_collection.uuid}, #{src_collection.portable_data_hash}"
78 new_collection.manifest_text = new_manifest
80 created = new_collection.save!
81 raise "New collection creation failed." if !created
83 $stderr.puts "Salvaged manifest and data for #{uuid} are in #{new_collection.uuid}."
84 puts "Created new collection #{new_collection.uuid}"
86 # update src_collection collection name, pdh, and manifest_text
87 src_collection.name = (src_collection.name || '') + ' (' + (reason || '') + '; salvaged data at ' + new_collection.uuid + ')'
88 src_collection.manifest_text = ''
89 src_collection.portable_data_hash = 'd41d8cd98f00b204e9800998ecf8427e+0'
91 $stderr.puts "Collection #{uuid} emptied and renamed to #{src_collection.name.inspect}."