[Bug 1694891] [NEW] All btrfs-tools commands need a quiet option for scripting

[Lucas Sandery]

Public bug reported:

Btrfs send and receive are noisy on stderr by default (messages like "At
subvol foo"). It'd be great to get an option to only print there if
there is an error condition. I assume there are other commands which do
the same.

See the patched version that quiets send but not receive. (I didn't realise receive was also noisy when requesting the backport.)
https://lists.ubuntu.com/archives/ubuntu-devel-discuss/2017-May/017455.html
https://launchpad.net/~costamagnagianfranco/+archive/ubuntu/locutusofborg-ppa/+packages

Many scripts/cron wrappers check for output on stderr in order to notify
when warnings/errors occur. There should be a way to avoid triggering
such notifications when btrfs commands are successful.

** Affects: btrfs-tools (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1694891

Title:
  All btrfs-tools commands need a quiet option for scripting

Status in btrfs-tools package in Ubuntu:
  New

Bug description:
  Btrfs send and receive are noisy on stderr by default (messages like
  "At subvol foo"). It'd be great to get an option to only print there
  if there is an error condition. I assume there are other commands
  which do the same.

  See the patched version that quiets send but not receive. (I didn't realise receive was also noisy when requesting the backport.)
  https://lists.ubuntu.com/archives/ubuntu-devel-discuss/2017-May/017455.html
  https://launchpad.net/~costamagnagianfranco/+archive/ubuntu/locutusofborg-ppa/+packages

  Many scripts/cron wrappers check for output on stderr in order to
  notify when warnings/errors occur. There should be a way to avoid
  triggering such notifications when btrfs commands are successful.

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