[RFC PATCH 00/14] btrfs-progs: global-verbose option

[Anand Jain <anand.jain@oracle.com>]

This patch set brings --verbose option to the top level btrfs command,
such as 'btrfs --verbose'. With this we don't have to add or remember
verbose option at the sub-commands level.

As there are already verbose options to 11 sub-commands as listed
below [1][2]. So the top level --verbose option here takes care to transpire
verbose request from the top level to the sub-command level for 9 (not 11)
sub-commands as in [1] as of now.

This patch is RFC still for the following two reasons (comments appreciated).

1.
The sub-commands as in [2] uses multi-level compile time verbose option,
such as %g_verbose = 0 (quite), %g_verbose = 1 (default), %g_verbose > 1
(real-verbose). And verbose at default is also part the .out files in
fstests. So it needs further discussions on how to handle the multi-
level verbose option using the global verbose option, and so sub-
commands in [2] are untouched.

2.
These patch has been unit-tested individually.
These patches does not alter the verbose output.
But it fixes the indentation in the command's help output, which may be
used in fstests and btrfs-progs/tests and their verification is pending
still, which I am planning to do it before v1.

[1]
btrfs subvolume delete --help
        -v|--verbose           verbose output of operations
btrfs filesystem defragment --help
        -v                  be verbose
btrfs balance start --help
        -v|--verbose        be verbose
btrfs balance status --help
        -v|--verbose        be verbose
btrfs rescue chunk-recover --help
        -v      Verbose mode
btrfs rescue super-recover --help
        -v      Verbose mode
btrfs restore --help
        -v|--verbose         verbose
btrfs inspect-internal inode-resolve --help
        -v   verbose mode
btrfs inspect-internal logical-resolve --help
        -v          verbose mode

[2]
btrfs send --help
        -v|--verbose     enable verbose output to stderr, each occurrence of
btrfs receive --help
        -v               increase verbosity about performed action

Anand Jain (14):
  btrfs-progs: add global verbose helper functions
  btrfs-progs: migrate subvolume delete to global verbose
  btrfs-progs: migrate filesystem defragment to global verbose
  btrfs-progs: migrate btrfs balance start to global verbose
  btrfs-progs: migrate balance status to global verbose
  btrfs-progs: fix help, show long option in balance start and status
  btrfs-progs: migrate rescue chunk-recover to global verbose
  btrfs-progs: migrate rescue super-recover to global verbose
  btrfs-progs: restore: delete unreachable code
  btrfs-progs: migrate restore to global verbose
  btrfs-progs: migrate inspect-internal inode-resolve to global verbose
  btrfs-progs: migrate inspect-internal logical-resolve to global
    verbose
  btrfs-progs: refactor btrfs_scan_devices() to accept verbose argument
  btrfs-progs: enable verbose for btrfs device scan

 btrfs.c              | 12 ++++++--
 cmds/balance.c       | 29 +++++++++---------
 cmds/device.c        |  2 +-
 cmds/filesystem.c    | 27 ++++++++---------
 cmds/inspect.c       | 36 +++++++++++-----------
 cmds/rescue.c        | 22 +++++++-------
 cmds/restore.c       | 86 +++++++++++++++++++++-------------------------------
 cmds/subvolume.c     | 35 +++++++++++----------
 common/device-scan.c |  4 ++-
 common/device-scan.h |  2 +-
 common/help.h        |  8 +++++
 common/messages.c    | 19 ++++++++++++
 common/messages.h    |  5 +++
 common/utils.c       |  2 +-
 disk-io.c            |  2 +-
 15 files changed, 155 insertions(+), 136 deletions(-)

-- 
1.8.3.1