[Bug 11378] New: Please add a '--line-buffered' option to rsync to make logging/output more friendly with pipes/syslog/CI systems/etc.

[samba-bugs]

https://bugzilla.samba.org/show_bug.cgi?id=11378

Bug ID: 11378
   Summary: Please add a '--line-buffered' option to rsync to make
logging/output more friendly with pipes/syslog/CI
systems/etc.
   Product: rsync
   Version: 3.1.1
  Hardware: All
OS: All
Status: NEW
  Severity: enhancement
  Priority: P5
 Component: core
  Assignee: way...@samba.org
  Reporter: nn...@neulinger.org
QA Contact: rsync...@samba.org

Created attachment 11225
  --> https://bugzilla.samba.org/attachment.cgi?id=11225&action=edit
patch to implement --line-buffered option

Behavior change with --line-buffered would be primarily to --progress - which
would output a newline after percentage update instead of just a
carriage-return.

During a normal operation with smaller files you'd never notice the difference,
but with large files (say recurrent sync of ISO images or similar) - you'd get
a MUCH more usable output trace in the build system and logs instead of it all
being merged onto one "line" of output.

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Re: [Bug 11378] New: Please add a '--line-buffered' option to rsync to make logging/output more friendly with pipes/syslog/CI systems/etc.

[Ken Chase]

How about

<@andrewTO> alias unbuf='stdbuf -i0 -o0 -e0'

then unbuf rsync

i have not tested this in any way.

--progress would be some interesting stuff to parse, esp with all the screen 
redrawing
of the K/s line as well as background deletes and scans overwriting while
--progress of the previous file occurs. Ever try to parse ANSI screendraw 
output?

/kc


On Thu, Jul 02, 2015 at 06:00:19PM +, samba-b...@samba.org said:
  >https://bugzilla.samba.org/show_bug.cgi?id=11378
  >
  >Bug ID: 11378
  >   Summary: Please add a '--line-buffered' option to rsync to make
  >logging/output more friendly with pipes/syslog/CI
  >systems/etc.
  >   Product: rsync
  >   Version: 3.1.1
  >  Hardware: All
  >OS: All
  >Status: NEW
  >  Severity: enhancement
  >  Priority: P5
  > Component: core
  >  Assignee: way...@samba.org
  >  Reporter: nn...@neulinger.org
  >QA Contact: rsync...@samba.org
  >
  >Created attachment 11225
  >  --> https://bugzilla.samba.org/attachment.cgi?id=11225&action=edit
  >patch to implement --line-buffered option
  >
  >Behavior change with --line-buffered would be primarily to --progress - which
  >would output a newline after percentage update instead of just a
  >carriage-return.
  >
  >During a normal operation with smaller files you'd never notice the 
difference,
  >but with large files (say recurrent sync of ISO images or similar) - you'd 
get
  >a MUCH more usable output trace in the build system and logs instead of it 
all
  >being merged onto one "line" of output.
  >
  >-- 
  >You are receiving this mail because:
  >You are the QA Contact for the bug.
  >-- 
  >Please use reply-all for most replies to avoid omitting the mailing list.
  >To unsubscribe or change options: 
https://lists.samba.org/mailman/listinfo/rsync
  >Before posting, read: http://www.catb.org/~esr/faqs/smart-questions.html

-- 
Ken Chase - k...@heavycomputing.ca Toronto Canada
Heavy Computing - Clued bandwidth, colocation and managed linux VPS @151 Front 
St. W.
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