[LU-17219] lfs find: add ability to print extended attributes

• Type: Improvement
• Resolution: Unresolved
• Priority: Minor
• Labels: easy utils
• Severity: 3
• Assignee: WC Triage
• Reporter: Thomas Bertschinger

Description

"lfs find" should have a printf option to be able to print extended attributes of files.

 

There are some design questions about the correct way for this to work:

• which xattrs should actually get printed? Should it only print xattrs that are matched with a supplied "-xattr" argument? what if no xattr argument is supplied?
• if multiple xattrs are printed per file should they be newline separated, or separated with some other character?
• different formats for printing, e.g., text, hex, base64, etc?

 

One of the main use cases for this would be printing job IDs for files that are matched with something like:
lfs find -xattr "user.job=" /mnt/lustre

Issue Links

• is related to: LU-15837 "lfs find -printf" improvements
• is related to: LU-13031 store JobID of program that created file in inodes at create time
• is related to: LU-15743 "lfs find" is missing "-xattr" support