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btrbk
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btrbk: support lsbtr symlink (alias for "btrbk ls") 

If called via "lsbtr" symlink (program name):

 - Provide user-friendly table options
 - Assume "./" as path if no path arguments are given
lsbtr-related
Axel Burri 2020-02-29 17:25:35 +01:00
parent dff05bc6d7
commit 910274f814
1 changed files with 50 additions and 12 deletions
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62
btrbk
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@ -284,6 +284,7 @@ my %realpath_cache; # map URL to realpath (symlink target). empty string denote
my $tree_inject_id = 0; # fake subvolume id for injected nodes (negative)
my $fake_uuid_prefix = 'XXXXXXXX-XXXX-XXXX-XXXX-'; # plus 0-padded inject_id: XXXXXXXX-XXXX-XXXX-XXXX-000000000000
my $program_name; # "btrbk" or "lsbtr", default to "btrbk"
my $dryrun;
my $loglevel = 1;
my $quiet;
@ -328,7 +329,25 @@ sub HELP_MESSAGE
{
return if($quiet);
#80-----------------------------------------------------------------------------
print STDERR <<"END_HELP";
if($program_name eq "lsbtr") {
print STDERR <<"END_HELP_LSBTR";
usage: lsbtr [options] [path]...
options:
-h, --help display this help message
--version display version information
-l, --long use long listing format
-u, --uuid print uuid table (parent/received relations)
--raw print raw table format
-v, --verbose increase output verbosity
-c, --config=FILE specify btrbk configuration file
--override=KEY=VALUE globally override a configuration option
For additional information, see $PROJECT_HOME
END_HELP_LSBTR
}
else {
print STDERR <<"END_HELP_BTRBK";
usage: btrbk [options] <command> [filter...]
options:
@ -375,7 +394,8 @@ commands:
ls <path> list all btrfs subvolumes below path
For additional information, see $PROJECT_HOME
END_HELP
END_HELP_BTRBK
}
#80-----------------------------------------------------------------------------
}
@ -4967,10 +4987,31 @@ MAIN:
$archive_raw,
$resume_only_DEPRECATED, # as of btrbk-v0.26.0
);
unless(GetOptions(
# Calling btrbk via "lsbtr" symlink acts as an alias for "btrbk ls",
# while also changing the semantics of the command line options.
$program_name = $0;
$program_name =~ s/^.*\///; # remove path
my @cmdline_options = (
# common options
'help|h' => sub { VERSION_MESSAGE(); HELP_MESSAGE(0); exit 0; },
'version' => sub { VERSION_MESSAGE(); exit 0; },
'quiet|q' => \$quiet,
'verbose|v' => sub { $loglevel = ($loglevel =~ /^[0-9]+$/) ? $loglevel+1 : 2; },
'loglevel|l=s' => \$loglevel,
'format=s' => \$output_format,
'pretty' => \$output_pretty,
'config|c=s' => \$config_cmdline,
'override=s' => \@config_override_cmdline, # e.g. --override=incremental=no
'lockfile=s' => \$lockfile_cmdline,
);
push @cmdline_options, ($program_name eq "lsbtr") ? (
# "lsbtr" options
'long|l' => sub { $output_format = "table" },
'uuid|u' => sub { $output_format = "long" },
'raw' => sub { $output_format = "raw" },
) : (
# "btrbk" options
'dry-run|n' => \$dryrun,
'exclude=s' => \@exclude_cmdline,
'preserve|p' => sub { $preserve_snapshots = "preserve", $preserve_backups = "preserve" },
@ -4978,24 +5019,21 @@ MAIN:
'preserve-backups' => sub { $preserve_backups = "preserve-backups" },
'wipe' => \$wipe_snapshots,
'resume-only|r' => \$resume_only_DEPRECATED,
'quiet|q' => \$quiet,
'verbose|v' => sub { $loglevel = ($loglevel =~ /^[0-9]+$/) ? $loglevel+1 : 2; },
'loglevel|l=s' => \$loglevel,
'progress' => \$show_progress,
'table|t' => sub { $output_format = "table" },
'long|L' => sub { $output_format = "long" },
'format=s' => \$output_format,
'pretty' => \$output_pretty,
'print-schedule|S' => \$print_schedule,
'lockfile=s' => \$lockfile_cmdline,
'override=s' => \@config_override_cmdline, # e.g. --override=incremental=no
'raw' => \$archive_raw,
))
{
);
unless(GetOptions(@cmdline_options)) {
VERSION_MESSAGE();
HELP_MESSAGE(0);
exit 2;
}
if($program_name eq "lsbtr") {
unshift @ARGV, './' unless(@ARGV); # default to current path
unshift @ARGV, "ls"; # implicit "btrbk ls"
}
my $command = shift @ARGV;
unless($command) {
VERSION_MESSAGE();