Drop unused logfiles table

The table held raw CentOS 5 i386 build logs fetched in 2012 but has
never been served by the app, while taking 13GB of the 17GB database.
Its contents are archived to s3://rubyci/centos5-32/ in the standard
chkbuild layout.

Author: hsbt

app/models/logfile.rb

@@ -0,0 +1,13 @@
+class DropLogfiles < ActiveRecord::Migration[8.1]
+  def change
+    drop_table :logfiles do |t|
+      t.datetime :created_at, precision: nil
+      t.binary :data
+      t.string :ext
+      t.integer :report_id
+      t.datetime :updated_at, precision: nil
+      t.index [:report_id, :ext], name: "index_logfiles_on_report_id_and_ext", unique: true
+      t.index [:report_id], name: "index_logfiles_on_report_id"
+    end
+  end
+end

db/migrate/20260727095902_drop_logfiles.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[8.1].define(version: 2026_07_27_051843) do
+ActiveRecord::Schema[8.1].define(version: 2026_07_27_095902) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "pg_catalog.plpgsql"
 
@@ -42,16 +42,6 @@
     t.index ["blob_id", "variation_digest"], name: "index_active_storage_variant_records_uniqueness", unique: true
   end
 
-  create_table "logfiles", force: :cascade do |t|
-    t.datetime "created_at", precision: nil
-    t.binary "data"
-    t.string "ext"
-    t.integer "report_id"
-    t.datetime "updated_at", precision: nil
-    t.index ["report_id", "ext"], name: "index_logfiles_on_report_id_and_ext", unique: true
-    t.index ["report_id"], name: "index_logfiles_on_report_id"
-  end
-
   create_table "recents", force: :cascade do |t|
     t.datetime "created_at", null: false
     t.string "etag", null: false

db/schema.rb

@@ -28,39 +28,6 @@ task :inspect_env => :environment do
   p URI("http://www.yahoo.co.jp").read(100) rescue nil
 end
 
-desc "fetch old logfiles"
-task :fetch_logfile => :environment do
-  Report.
-    joins("LEFT OUTER JOIN logfiles AS l1 ON
-          reports.id = l1.report_id AND l1.ext='log.txt'").
-    joins("LEFT OUTER JOIN logfiles AS l2 ON
-          reports.id = l2.report_id AND l2.ext='diff.txt'").
-    joins("LEFT OUTER JOIN logfiles AS l3 ON
-          reports.id = l2.report_id AND l3.ext='log.html'").
-    joins("LEFT OUTER JOIN logfiles AS l4 ON
-          reports.id = l4.report_id AND l4.ext='diff.html'").
-    where('l1.report_id IS NULL OR l2.report_id IS NULL OR
-          l3.report_id IS NULL OR l4.report_id IS NULL').
-    where('reports.server_id = 4').
-    select(['reports.*',
-            'l1.id AS l1id', 'l2.id AS l2id', 'l3.id AS l3id', 'l4.id AS l4id']).
-    find_each do |r|
-    t = r.datetime.strftime('%Y%m%dT%H%M%SZ')
-    lids = [r.l1id, r.l2id, r.l3id, r.l4id]
-    %w[log.txt diff.txt log.html diff.html].each_with_index do |ext, i|
-      next if lids[i]
-      uri = "#{r.server.uri}ruby-#{r.branch}/log/#{t}.#{ext}.gz"
-      puts uri
-      begin
-        data = URI(uri).read
-        Logfile.create(report_id: r.id, ext: ext, data: data)
-      rescue => e
-        p e
-      end
-    end
-  end
-end
-
 desc "sync server settings"
 task :sync_servers => :environment do
   require 'open-uri'