{"action":"created","issue":{"url":"https://api.github.com/repos/chef/chef-server/issues/297","labels_url":"https://api.github.com/repos/chef/chef-server/issues/297/labels{/name}","comments_url":"https://api.github.com/repos/chef/chef-server/issues/297/comments","events_url":"https://api.github.com/repos/chef/chef-server/issues/297/events","html_url":"https://github.com/chef/chef-server/pull/297","id":79525821,"number":297,"title":"cache deps and erlang plt files to avoid regen/redownload","user":{"login":"marcparadise","id":1130204,"avatar_url":"https://avatars.githubusercontent.com/u/1130204?v=3","gravatar_id":"","url":"https://api.github.com/users/marcparadise","html_url":"https://github.com/marcparadise","followers_url":"https://api.github.com/users/marcparadise/followers","following_url":"https://api.github.com/users/marcparadise/following{/other_user}","gists_url":"https://api.github.com/users/marcparadise/gists{/gist_id}","starred_url":"https://api.github.com/users/marcparadise/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/marcparadise/subscriptions","organizations_url":"https://api.github.com/users/marcparadise/orgs","repos_url":"https://api.github.com/users/marcparadise/repos","events_url":"https://api.github.com/users/marcparadise/events{/privacy}","received_events_url":"https://api.github.com/users/marcparadise/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/chef/chef-server/labels/in%20progress","name":"in progress","color":"ededed"},{"url":"https://api.github.com/repos/chef/chef-server/labels/Signed%20CLA","name":"Signed CLA","color":"ededed"}],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":1,"created_at":"2015-05-22T16:50:55Z","updated_at":"2015-06-03T16:53:01Z","closed_at":null,"pull_request":{"url":"https://api.github.com/repos/chef/chef-server/pulls/297","html_url":"https://github.com/chef/chef-server/pull/297","diff_url":"https://github.com/chef/chef-server/pull/297.diff","patch_url":"https://github.com/chef/chef-server/pull/297.patch"},"body":"the cache mechanism used by container builds re-extracts a complete bz2-compressed tarball of the cache for each named item, resulting in a linearly increasing constant time operation for each line item that we add to the cache.  \r\n\r\nThis works around that by pulling cache content out of a single travis-cache item, .realcache/, using rsync to preserve dates/times/etc.   After the build it then uses rysnc to push changed things into .realcache/. \r\n\r\nTesting has shown that this does also prevent mtime updates to .realcache unless something has changed - so travis doesn't reupload the cache unnecessarily. "},"comment":{"url":"https://api.github.com/repos/chef/chef-server/issues/comments/108521463","html_url":"https://github.com/chef/chef-server/pull/297#issuecomment-108521463","issue_url":"https://api.github.com/repos/chef/chef-server/issues/297","id":108521463,"user":{"login":"marcparadise","id":1130204,"avatar_url":"https://avatars.githubusercontent.com/u/1130204?v=3","gravatar_id":"","url":"https://api.github.com/users/marcparadise","html_url":"https://github.com/marcparadise","followers_url":"https://api.github.com/users/marcparadise/followers","following_url":"https://api.github.com/users/marcparadise/following{/other_user}","gists_url":"https://api.github.com/users/marcparadise/gists{/gist_id}","starred_url":"https://api.github.com/users/marcparadise/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/marcparadise/subscriptions","organizations_url":"https://api.github.com/users/marcparadise/orgs","repos_url":"https://api.github.com/users/marcparadise/repos","events_url":"https://api.github.com/users/marcparadise/events{/privacy}","received_events_url":"https://api.github.com/users/marcparadise/received_events","type":"User","site_admin":false},"created_at":"2015-06-03T16:53:01Z","updated_at":"2015-06-03T16:53:01Z","body":"ping @chef/lob this is more-or-less ready, I\"m just doing some final experiments to determine whether it's worth including rvm in the cache. \r\n"}}