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fix #4849: download-url: allow download and decompression of compressed ISOs

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adds information for how to decompress isos.

generates the compressor regex from a list of comression formats (to
avoid redundancy)
extends the download_url wtih the functionality to handley compression
for images

Signed-off-by: Philipp Hufnagl <p.hufnagl@proxmox.com>
This commit is contained in:
Philipp Hufnagl 2023-08-14 16:42:17 +02:00 committed by Wolfgang Bumiller
parent 57ec06621b
commit 2197ff97dc
3 changed files with 21 additions and 2 deletions
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14
src/PVE/API2/Storage/Status.pm
View File

@ -578,6 +578,12 @@ __PACKAGE__->register_method({
requires => 'checksum-algorithm',
optional => 1,
},
compression => {
description => "Decompress the downloaded file using specified compression algorithm",
type => 'string',
enum => $PVE::Storage::Plugin::KNOWN_COMPRESSION_FORMATS,
optional => 1,
},
'checksum-algorithm' => {
description => "The algorithm to calculate the checksum of the file.",
type => 'string',
@ -604,7 +610,7 @@ __PACKAGE__->register_method({
my $cfg = PVE::Storage::config();
my ($node, $storage) = $param->@{'node', 'storage'};
my ($node, $storage, $compression) = $param->@{'node', 'storage','compression'};
my $scfg = PVE::Storage::storage_check_enabled($cfg, $storage, $node);
die "can't upload to storage type '$scfg->{type}', not a file based storage!\n"
@ -649,6 +655,12 @@ __PACKAGE__->register_method({
}
my $worker = sub {
if ($compression) {
die "decompression not supported for $content\n" if $content ne 'iso';
my $info = PVE::Storage::decompressor_info('iso', $compression);
die "no decompression method found\n" if (! $info->{decompressor});
$opts->{decompression_command} = $info->{decompressor};
}
PVE::Tools::download_file_from_url("$path/$filename", $url, $opts);
};

6
src/PVE/Storage.pm
View File

@ -1531,6 +1531,12 @@ sub decompressor_info {
lzo => ['lzop', '-d', '-c'],
zst => ['zstd', '-q', '-d', '-c'],
},
iso => {
# zstd seem to be able to handle .gzip fine. Therefore we dont need additional other tool
gz => ['zcat'],
lzo => ['lzop', '-d', '-c'],
zst => ['zstd', '-q', '-d', '-c'],
},
};
die "ERROR: archive format not defined\n"

3
src/PVE/Storage/Plugin.pm
View File

@ -19,7 +19,8 @@ use JSON;
use base qw(PVE::SectionConfig);
use constant COMPRESSOR_RE => 'gz|lzo|zst';
use constant KNOWN_COMPRESSION_FORMATS => ( 'gz', 'lzo', 'zst');
use constant COMPRESSOR_RE => join( '|', KNOWN_COMPRESSION_FORMATS);
use constant LOG_EXT => ".log";
use constant NOTES_EXT => ".notes";