[LU-18454] 'lfs migrate' command can read filenames from file/stdin

• Type: Improvement
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.17.0
• Labels: patch
• Severity: 3
• Assignee: Feng Lei
• Reporter: Feng Lei

Description

This issue is splitted from LU-16789.

By Andreas:

I think "-0" should be an option for "lfs migrate" (and "lfs mirror extend") to read NUL-terminated filenames from stdin, and --files-from=FILELIST should read from a list of files, with "FILELIST=-" should indicate stdin (one file per line). This matches the option name from tar and rsync, and allows reading from both an existing file as well as a pipe. 

Issue Links

• is related to: LU-15425 "lfs migrate" and "lfs_migrate" to accept list of FIDs
• is related to: LU-16789 "lfs migrate" to use AIO/DIO or io_uring (kernel 5.1+)

Comments

[Peter Jones]

Merged for 2.17

[Gerrit Updater]

"Oleg Drokin <[e-mail]>" merged in patch https://review.whamcloud.com/c/fs/lustre-release/+/57104/
Subject: LU-18454 utils: 'lfs migrate' can read filenames from file
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: b85d28309764e9988005a8e98cfd4ffd900c090c

[Feng Lei]

--files-from=FILELIST should read from a list of files

Personally I think it's over complex. So I'm going to support only one file whose content are multiple lines of filenames.

[Gerrit Updater]

"Feng Lei <[e-mail]>" uploaded a new patch: https://review.whamcloud.com/c/fs/lustre-release/+/57104
Subject: LU-18454 utils: 'lfs migrate' can read filenames from file
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 06949106a980f6a5c6b0f52f0ddd806d21532323