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btrbk: improve raw sidecar files parsing

pull/504/merge
Axel Burri 2022-11-19 18:29:04 +01:00
parent 9d0468070d
commit 87ed9ffeb5
1 changed files with 20 additions and 22 deletions
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btrbk
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@ -2011,8 +2011,9 @@ sub system_read_raw_info_dir($)
'-type', 'f',
'!', '-size', '0',
'-name', '\*.btrfs.\*info', # match ".btrfs[.gz|.bz2|.xz|...][.gpg].info"
'-exec', 'echo INFO_FILE=\{\} \;',
'-exec', 'cat \{\} \;'
'-print0',
'-exec', 'cat \{\} \;',
'-exec', 'printf "\0\0" \;',
],
rsh => vinfo_rsh($droot),
non_destructive => 1,
@ -2023,49 +2024,46 @@ sub system_read_raw_info_dir($)
}
my @raw_targets;
my $cur_target;
foreach(@$ret)
{
if(/^INFO_FILE=/) {
push @raw_targets, $cur_target if($cur_target);
$cur_target = {};
}
next unless($cur_target);
$cur_target->{$1} = $2 if /^([a-zA-Z_]+)=(.*)/;
}
push @raw_targets, $cur_target if($cur_target);
# input validation (we need to abort here, or the backups will be resumed)
foreach my $raw_info (@raw_targets) {
unless($raw_info->{INFO_FILE}) {
foreach (split "\000\000", join "\n", @$ret) {
unless (s/^(.*?)\000//s) {
ERROR("Error while parsing command output for: $droot->{PATH}");
return undef;
}
my $info_file = check_file($1, { absolute => 1 }, error_statement => 'for raw info file')
// return undef;
my $raw_info = { INFO_FILE => $info_file };
foreach (split "\n") {
$raw_info->{$1} = $2 if /^([a-zA-Z_]+)=(.*)/;
}
# input validation (we need to abort here, or the backups will be resumed)
unless($raw_info->{FILE}) {
ERROR("Missing \"FILE=\" in raw info file: " . $raw_info->{INFO_FILE});
ERROR("Missing \"FILE=\" in raw info file: $info_file");
return undef;
}
unless(check_file($raw_info->{FILE}, { name_only => 1 })) {
ERROR("Ambiguous \"FILE=\" in raw info file: " . $raw_info->{INFO_FILE});
ERROR("Ambiguous \"FILE=\" in raw info file: $info_file");
return undef;
}
unless($raw_info->{TYPE} && ($raw_info->{TYPE} eq 'raw')) {
ERROR("Unsupported \"type\" in raw info file: " . $raw_info->{INFO_FILE});
ERROR("Unsupported \"type\" in raw info file: $info_file");
return undef;
}
unless($raw_info->{RECEIVED_UUID} && ($raw_info->{RECEIVED_UUID} =~ /^$uuid_match$/)) {
ERROR("Missing/Illegal \"received_uuid\" in raw info file: " . $raw_info->{INFO_FILE});
ERROR("Missing/Illegal \"received_uuid\" in raw info file: $info_file");
return undef;
}
if(defined $raw_info->{RECEIVED_PARENT_UUID}) {
unless(($raw_info->{RECEIVED_PARENT_UUID} eq '-') || ($raw_info->{RECEIVED_PARENT_UUID} =~ /^$uuid_match$/)) {
ERROR("Illegal \"RECEIVED_PARENT_UUID\" in raw info file: " . $raw_info->{INFO_FILE});
ERROR("Illegal \"RECEIVED_PARENT_UUID\" in raw info file: $info_file");
return undef;
}
}
else {
$raw_info->{RECEIVED_PARENT_UUID} = '-';
}
push @raw_targets, $raw_info;
}
DEBUG("Parsed " . @raw_targets . " raw info files in path: $droot->{PATH}");