Unlike everything you've reblogged on Tumblr

unlike_reblogs.rb

require 'tumblr_client'

BLOG_URL = "rpowelll.moe"

Tumblr.configure do |config|
  config.consumer_key = "xxxx"
  config.consumer_secret = "xxxx"
  config.oauth_token = "xxxx"
  config.oauth_token_secret = "xxxx"
end

client = Tumblr::Client.new(:client => :httpclient)

like_ids = {}
post_reblog_keys = []
like_reblog_keys = []

total_posts = client.posts(BLOG_URL, limit: 20, reblog_info: true)['total_posts']
offset = 0
while offset < total_posts do
  post_reblog_keys += client.posts(BLOG_URL, offset: offset, limit: 20, reblog_info: true)['posts'].map do |post|
    post['reblog_key']
  end

  offset += 20
  puts offset
end

total_likes = total_posts = client.blog_likes(BLOG_URL, limit: 1)['liked_count']
offset = 0
while offset < total_likes do
  client.blog_likes(BLOG_URL, offset: offset, limit: 20)['liked_posts'].each do |like|
    like_reblog_keys << like['reblog_key']
    like_ids[like['reblog_key']] = like['id']
  end

  offset += 20
  puts offset
end

posts_to_unlike = like_reblog_keys & post_reblog_keys
posts_to_unlike.each do |reblog_key|
  client.unlike like_ids[reblog_key], reblog_key
end