Matchu
c751173c52
Huh, curious, I think what I'm seeing is: on my development machine, `File.exist?` returns true for symlinks, but, on our production machine, `File.exist?` returns false for symlinks. I imagine this is a difference in the implementation of the underlying system calls? Curious! This new check should work more reliably across platforms. I considered checking both `exists?` and `symlink?`, but decided that, in the unexpected case that `latest.sql.gz` exists but is an actual file instead of a symlink like we expect, it's probably best to avoid overwriting it anyway, and a crash on the `symlink` attempt is a reasonable way to do that.
97 lines
3.5 KiB
Ruby
97 lines
3.5 KiB
Ruby
require "open-uri"
|
|
require "open3"
|
|
|
|
desc "Tools to save and import DTI's public modeling data"
|
|
namespace :public_data do
|
|
desc "Save the local database's public data to a local file"
|
|
task :commit, [:name] => :environment do |_, args|
|
|
if Rails.env.development?
|
|
puts "NOTE: The `public_data:commit` task is primarily meant to be " +
|
|
"run in production, to create public data files we can copy to our " +
|
|
"development machines via `public_data:pull`. I'll still run it " +
|
|
"locally and save to #{Rails.configuration.public_data_root}, though!"
|
|
end
|
|
|
|
# Generate a filename from the current time, and the option name argument
|
|
# provided to the command (e.g. `rails public_data:commit[scheduled]`).
|
|
timestamp = Time.now.utc.iso8601.gsub(':', '_')
|
|
name = args.fetch(:name, "manual")
|
|
filename = "#{timestamp}-#{name}.sql.gz"
|
|
dest_path = Rails.configuration.public_data_root / filename
|
|
|
|
args = []
|
|
|
|
# The connection details for our database!
|
|
config = ApplicationRecord.connection_db_config.configuration_hash
|
|
args << "--host=#{config[:host]}" if config[:host]
|
|
args << "--user=#{config[:username]}" if config[:username]
|
|
args << "--password=#{config[:password]}" if config[:password]
|
|
|
|
# Don't lock the database to do it!
|
|
args << "--single-transaction"
|
|
|
|
# Skip dumping tablespaces, so this requires fewer privileges.
|
|
args << "--no-tablespaces"
|
|
|
|
# Dump the public data tables from the primary database.
|
|
args << config.fetch(:database)
|
|
args += %w(species colors zones) # manual constants
|
|
args += %w(alt_styles items parents_swf_assets pet_states pet_types
|
|
swf_assets) # from modeling
|
|
|
|
# Set up a shell, and register the commands we need.
|
|
Shell.def_system_command("mysqldump")
|
|
Shell.def_system_command("gzip")
|
|
sh = Shell.new
|
|
|
|
# Ensure the output directory exists.
|
|
dest_path.dirname.mkpath
|
|
|
|
# Run mysqldump, pipe it into gzip, and output to the destination file.
|
|
sh.transact do
|
|
sh.mysqldump(*args) | sh.gzip("-c") > dest_path.to_s
|
|
end
|
|
|
|
puts "Saved dump to #{dest_path}"
|
|
|
|
# Link this latest dump as `latest.sql.gz`.
|
|
latest_path = Rails.configuration.public_data_root / "latest.sql.gz"
|
|
File.unlink(latest_path) if File.symlink?(latest_path)
|
|
File.symlink(dest_path, latest_path)
|
|
|
|
puts "Linked dump to #{latest_path}"
|
|
end
|
|
|
|
desc "Pull and import the latest public data from production (dev only)"
|
|
task :pull => :environment do
|
|
unless Rails.env.development?
|
|
raise "Can only pull public data in development mode! This helps us " +
|
|
"ensure we won't overwrite the production database accidentally."
|
|
end
|
|
|
|
args = []
|
|
|
|
# The connection details for our database!
|
|
config = ApplicationRecord.connection_db_config.configuration_hash
|
|
args << "--host=#{config[:host]}" if config[:host]
|
|
args << "--user=#{config[:username]}" if config[:username]
|
|
args << "--password=#{config[:password]}" if config[:password]
|
|
args << "--database=#{config.fetch(:database)}"
|
|
|
|
# Set up a shell, and register the commands we need.
|
|
Shell.def_system_command("mysql")
|
|
Shell.def_system_command("gunzip")
|
|
sh = Shell.new
|
|
|
|
URI.open("https://impress.openneo.net/public-data/latest.sql.gz") do |file|
|
|
# Pipe the latest public data SQL into `gunzip` to unpack it, then pipe
|
|
# it into mysql to execute it.
|
|
#
|
|
# NOTE: We need `open(file)` to wrap it in a plain `File` object, so the
|
|
# `Shell` will recognize it correctly! It doesn't accept `Tempfile`.
|
|
sh.transact do
|
|
(sh.gunzip("-c") < open(file)) | sh.mysql(*args)
|
|
end
|
|
end
|
|
end
|
|
end
|