我一直在使用rake任务将我的数据库从heroku staging快速转储和恢复到本地开发环境。
新的pg:backups已经破坏了任务,我无法弄清楚如何修复它。
旧db.rake:
namespace :db do
desc "Restore the DB from a production"
task :dump do
Bundler.with_clean_env {sh "heroku pgbackups:capture --expire --app myapp"}
Bundler.with_clean_env {sh "curl -o latest.dump `heroku pgbackups:url --app myapp`"}
puts `pg_restore --verbose --clean --no-acl --no-owner -h localhost -d #{Rails.configuration.database_configuration["development"]["database"]} latest.dump`
puts `rm latest.dump`
end
end
新的(没有工作):
namespace :db do
desc "Restore the DB from a production"
task :new_dump do
Bundler.with_clean_env {sh "heroku pg:backups capture --app myapp"}
Bundler.with_clean_env {sh "curl -o latest.dump `heroku pg:backups public-url NEEDS_ID_OF_LAST_BACKUP_HERE --app myapp`"}
puts `pg_restore --verbose --clean --no-acl --no-owner -h localhost -d #{Rails.configuration.database_configuration["development"]["database"]} latest.dump`
puts `rm latest.dump`
end
end
它不再有效的原因是因为Heroku弃用了heroku pgbackups:url
命令,该命令曾用于返回最新备份的URL。
最接近的等价物,每https://devcenter.heroku.com/articles/heroku-postgres-backups运行heroku pg:backups
,返回一个备份ID表:
=== Backups
ID Backup Time Status Size Database
---- ------------------------- ---------------------------------- ------ --------
b005 2015-03-21 23:04:16 +0000 Finished 2015-03-21 23:04:20 +0000 82.1kB VIOLET
b004 2015-03-21 22:55:33 +0000 Finished 2015-03-21 22:55:34 +0000 82.1kB VIOLET
据我所知,我可以编写一个解析器来从表中提取ID,但这对于简单的rake任务来说似乎有些过分。
答案 0 :(得分:0)
解决方案是超级getto,但它有效...
Bundler.with_clean_env {sh "rake db:drop"}
Bundler.with_clean_env {sh "rake db:create"}
Bundler.with_clean_env {sh "heroku pg:backups capture --app #{heroku_server}"}
db_id = nil
Bundler.with_clean_env do
db_list = `heroku pg:backups -a #{heroku_server}`
res = db_list.split("\n")[3]
db_id = res.split(" ")[0].strip
p "Restoring backup with id #{db_id}"
restore_url = `heroku pg:backups public-url #{db_id} -a "#{heroku_server}"`
restore_url = URI.extract(restore_url)
restore_url = restore_url[0]
p `curl -o latest.dump "#{restore_url}"`
end
puts `pg_restore --verbose --clean --no-acl --no-owner -h localhost -d dbname-dev latest.dump`
puts `rm latest.dump`