icelander · January 5, 2022 21:08
diff --git a/remove-attachments.rb b/remove-attachments.rb
 #!/usr/bin/env ruby
 require 'json'

 ## How to use
 #
 #  1. Generate a Mattermost bulk export file with attachments
 #  2. Unzip the file and find the .jsonl file with the post contents and put its filename on the next line
 filename = 'import.jsonl'
 #  3. Run it and direct the output to a new file, e.g.
 #
 #	ruby remove-attachments.rb > import_no_attachments.jsonl

 posts = []
 emoji = []
 other = []


 File.readlines(filename).each do |line|
 	data = JSON.parse(line)

 	if data['type'] == 'post' or data['type'] == 'direct_post'
 		$stderr.puts "Found #{data['type']}"
 		type = data['type']
 		if data[type].key?('attachments')
 			$stderr.puts "#{type} has an attachments key "
 			
 			begin
 				if !data[type]['attachments'].nil? and data[type]['attachments'].length > 0
 					$stderr.puts "#{type} has #{data[type]['attachments'].length} attachment(s). Resetting"
 					data[type]['attachments'] = []
 				end	
 			rescue Exception => e
 				$stderr.puts e.to_s
 				$stderr.puts data[type].to_json
 			end
 			
 		end

 		posts << data.to_json
 	else
 		other << line
 	end
 end

 other.each do |line|
 	puts line
 end

 posts.each do |post|
 	puts post
 end