rubocop: fix various style issues.

script/fixes/005.rb

@@ -7,7 +7,7 @@ Post.where("image_width > 850").find_each do |post|
     next
   end
 
-  if !File.exists?(post.file_path)
+  if !File.exist?(post.file_path)
     puts "NOT FOUND: #{post.id}"
     next
   end
@@ -19,7 +19,7 @@ Post.where("image_width > 850").find_each do |post|
 
   resize = false
 
-  if !File.exists?(post.large_file_path)
+  if !File.exist?(post.large_file_path)
     puts "LARGE NOT FOUND: #{post.id}"
     resize = true
   end

script/fixes/013.rb

@@ -9,26 +9,26 @@ Comment.find_each do |comment|
     puts "deleting comment #{comment.id}"
     comment.destroy
   end
-end ; true
+end; true
 
 Ban.find_each do |ban|
   puts "updating ban for user #{ban.user.id}"
   ban.user.update_attribute(:is_banned, true)
-end ; true
+end; true
 
 ArtistVersion.update_all "is_banned = false"
 
 Artist.where("is_banned = true").find_each do |artist|
   puts "updating artist #{artist.id}"
   artist.versions.last.update_column(:is_banned, true)
-end ; true
+end; true
 
 danbooru_conn = PGconn.connect(dbname: 'danbooru')
 danbooru2_conn = PGconn.connect(dbname: "danbooru2")
 danbooru_conn.exec("set statement_timeout = 0")
-danbooru_conn.exec( "SELECT * FROM comments WHERE id < 29130" ) do |result|
+danbooru_conn.exec("SELECT * FROM comments WHERE id < 29130") do |result|
   result.each do |row|
     # puts row["id"], row["created_at"], row["post_id"], row["user_id"], row["body"], row["ip_addr"], row["score"]
-    danbooru2_conn.exec "insert into comments (id, created_at, updated_at, post_id, creator_id, body, ip_addr, score, updater_id, updater_ip_addr) values ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10)", [row["id"], row["created_at"], row["created_at"], row["post_id"], row["user_id"], row["body"], row["ip_addr"], row["score"], row["user_id"], row["ip_addr"]] 
+    danbooru2_conn.exec "insert into comments (id, created_at, updated_at, post_id, creator_id, body, ip_addr, score, updater_id, updater_ip_addr) values ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10)", [row["id"], row["created_at"], row["created_at"], row["post_id"], row["user_id"], row["body"], row["ip_addr"], row["score"], row["user_id"], row["ip_addr"]]
   end
 end

script/fixes/014_note_ranges.rb

@@ -22,7 +22,7 @@ Post.where("created_at >= '2013-02-01'").select("id, score, up_score, down_score
   revised_score = post.up_score + post.down_score + fav_count
   puts "#{post.id}: #{post.score} -> #{revised_score}" if post.score != revised_score
   post.update_column(:score, revised_score)
-end ; true
+end; true
 
 Post.where("is_deleted = true and created_at >= '2013-02-01'").find_each do |post|
   if post.flags.empty?

script/fixes/017_fix_md5.rb

@@ -16,6 +16,6 @@ Post.where("id in (?)", Pool.find(203).post_id_array).find_each do |post|
     FileUtils.mv(post.real_preview_file_path, post.real_preview_file_path.sub(post.md5, correct_md5))
     FileUtils.mv(post.ssd_preview_file_path, post.ssd_preview_file_path.sub(post.md5, correct_md5))
   end
-  
+
   FileUtils.mv(post.file_path, post.file_path.sub(post.md5, correct_md5))
 end

script/fixes/024_move_favorites_to_parent.rb

@@ -9,7 +9,7 @@ CurrentUser.ip_addr = "127.0.0.1"
 
 CurrentUser.without_safe_mode do
   sample_tags = %w(pixiv_manga_sample pixiv_thumbnail deviantart_thumbnail thumbnail nico_nico_thumbnail twitpic_thumbnail tumblr_sample imageboard_sample nijie_sample)
-  Post.tag_match(sample_tags.map{|tag| "~" + tag}.join(" ")).where("is_deleted = true and parent_id is not null and fav_count > 0").find_each do |post|
+  Post.tag_match(sample_tags.map {|tag| "~" + tag}.join(" ")).where("is_deleted = true and parent_id is not null and fav_count > 0").find_each do |post|
     if (post.parent.tag_array & sample_tags).any?
       next
     else

script/fixes/025_last_commented_at.rb

@@ -4,8 +4,8 @@ require File.expand_path(File.join(File.dirname(__FILE__), '..', '..', 'config',
 
 ActiveRecord::Base.connection.execute("set statement_timeout = 0")
 0.upto(1585206 / 1000) do |i|
-  puts "updating posts #{i * 1000} to #{(i+1) * 1000}"
-  ActiveRecord::Base.connection.execute("update posts set last_commented_at = (select c.created_at from comments c where c.post_id = posts.id order by c.id desc limit 1) where posts.id between #{i * 1000} and #{(i+1) * 1000}")
+  puts "updating posts #{i * 1000} to #{(i + 1) * 1000}"
+  ActiveRecord::Base.connection.execute("update posts set last_commented_at = (select c.created_at from comments c where c.post_id = posts.id order by c.id desc limit 1) where posts.id between #{i * 1000} and #{(i + 1) * 1000}")
 end
 
 TagImplication.find_each do |ti|
@@ -13,7 +13,7 @@ TagImplication.find_each do |ti|
   if ta
     puts "testing alias #{ta.antecedent_name} -> #{ta.consequent_name}"
     existing_ti = TagImplication.where("antecedent_name = ? AND consequent_name = ?", ta.consequent_name, ti.consequent_name).first
-    existing_ti.destroy if existing_ti
+    existing_ti&.destroy
 
     if ta.consequent_name == ti.consequent_name
       puts "  deleting implication #{ti.antecedent_name} -> #{ti.consequent_name}"

script/fixes/046_fix_nicovideo_artist_urls.rb

@@ -6,6 +6,6 @@ ArtistUrl.without_timeout do
   ArtistUrl.where("normalized_url like ?", "\%nicovideo\%").find_each do |url|
     before = url.normalized_url
     url.normalize
-    puts "#{before} -> #{url.normalized_url}" if before != url.normalized_url unless ArtistUrl.where(normalized_url: url.normalized_url).exists?
+    puts "#{before} -> #{url.normalized_url}" unless ArtistUrl.where(normalized_url: url.normalized_url).exists? || before == url.normalized_url
   end
 end

script/fixes/048_remove_expunged_favorites.rb

@@ -5,7 +5,7 @@ require File.expand_path(File.join(File.dirname(__FILE__), '..', '..', 'config',
 CurrentUser.user = User.system
 CurrentUser.ip_addr = "127.0.0.1"
 
-ModAction.without_timeout do 
+ModAction.without_timeout do
   ModAction.where(creator_id: 1).where("created_at > ? and description like ?", "2017-07-18", "permanently deleted post%").find_each do |ma|
     post_id = ma.description.scan(/\d+/).first
     puts "deleting favorites for #{post_id}"

script/fixes/049_spam_1.rb

@@ -13,7 +13,7 @@ BAD_TITLES = ["My collection", "hi", "My private videos", "My video", "hey", "My
 spammers = Set.new(Dmail.where("dmails.from_id >= ? and dmails.created_at >= ? and is_spam = ?", MIN_USER_ID, MIN_DATE, true).joins("join users on users.id = dmails.from_id").where("users.name ~ '^[a-z0-9]+[0-9]{3,}$'").pluck("users.id").map(&:to_i).uniq)
 new_spammers = Set.new
 
-User.without_timeout do 
+User.without_timeout do
   Dmail.where("created_at >= ? and is_spam = ?", MIN_DATE, false).find_each do |dmail|
     from_name = dmail.from_name
     if dmail.from_id >= MIN_USER_ID && from_name =~ NAME_REGEXP

script/fixes/051_purge_invalid_tags.rb

@@ -10,7 +10,7 @@ Tag.transaction do
   total = empty_gentags.count
 
   empty_gentags.find_each.with_index do |tag, i|
-    STDERR.puts %{validating "#{tag.name}" (#{i}/#{total})} if i % 1000 == 0
+    warn %{validating "#{tag.name}" (#{i}/#{total})} if i % 1000 == 0
 
     if tag.invalid?(:create)
       # puts ({ name: tag.name, id: tag.id }).to_json

script/fixes/059_fix_favorites.rb

@@ -0,0 +1,14 @@
+#!/usr/bin/env ruby
+
+require_relative "../../config/environment"
+
+def fix_favorites
+  Favorite.without_timeout do
+    # delete favorites with a nonexistent post_id
+    Favorite.where("NOT EXISTS (SELECT 1 FROM posts WHERE posts.id = favorites.post_id)").delete_all
+  end
+end
+
+def fix_migrations
+  ApplicationRecord.connection.execute("DELETE FROM scheme_migrations WHERE version = '201704142336170'")
+end