https://bugzilla.redhat.com/show_bug.cgi?id=1871452 Bug ID: 1871452 Summary: Review Request: ghc-atomic-write - Atomically write to a file Product: Fedora Version: rawhide Status: NEW Component: Package Review Assignee: nobody@xxxxxxxxxxxxxxxxx Reporter: petersen@xxxxxxxxxx QA Contact: extras-qa@xxxxxxxxxxxxxxxxx CC: package-review@xxxxxxxxxxxxxxxxxxxxxxx Target Milestone: --- Classification: Fedora Spec URL: https://petersen.fedorapeople.org/reviews/ghc-atomic-write/ghc-atomic-write.spec SRPM URL: https://petersen.fedorapeople.org/reviews/ghc-atomic-write/ghc-atomic-write-0.2.0.7-1.fc33.src.rpm Description: Atomically write to a file on POSIX-compliant systems while preserving permissions. On most Unix systems, `mv` is an atomic operation. This makes it simple to write to a file atomically just by using the mv operation. However, this will destroy the permissions on the original file. This library does the following to preserve permissions while atomically writing to a file: * If an original file exists, take those permissions and apply them to the temp file before `mv`ing the file into place. * If the original file does not exist, create a following with default permissions (based on the currently-active umask). This way, when the file is `mv`'ed into place, the permissions will be the ones held by the original file. This library is based on similar implementations found in common libraries in Ruby and Python: * <http://apidock.com/rails/File/atomic_write/class Ruby on Rails includes a similar method called atomic_write> * <https://github.com/chef/chef/blob/c4631816132fcfefaba3d123a1d0dfe8bc2866bb/lib/chef/file_content_management/deploy/mv_unix.rb#L23:L71 Chef includes atomic update functionality> * <https://github.com/sashka/atomicfile There is a python library for atomically updating a file> To use `atomic-write`, import the module corresponding to the type you wish to write atomically, e.g., to write a (strict) ByteString atomically: > import System.AtomicWrite.Writer.ByteString Then you can use the atomicWriteFile function that accepts a `FilePath` and a `ByteString`, e.g.: > atomicWriteFile myFilePath myByteString. Koji scratch build: https://koji.fedoraproject.org/koji/taskinfo?taskID=49980469 -- You are receiving this mail because: You are on the CC list for the bug. You are always notified about changes to this product and component _______________________________________________ package-review mailing list -- package-review@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to package-review-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/package-review@xxxxxxxxxxxxxxxxxxxxxxx
