12 |
use Data::Dump qw/dump/; |
use Data::Dump qw/dump/; |
13 |
use Carp qw/confess/; |
use Carp qw/confess/; |
14 |
use IO::File; |
use IO::File; |
15 |
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use Getopt::Long; |
16 |
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17 |
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my $debug = 0; |
18 |
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my $fuse_debug = 0; |
19 |
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20 |
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GetOptions( |
21 |
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'debug+' => \$debug, |
22 |
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'fuse-debug+' => \$fuse_debug, |
23 |
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); |
24 |
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|
25 |
my $mount = { |
my $mount = { |
26 |
from => '/tmp/comp', |
from => '/tmp/comp', |
28 |
tmp => '/dev/shm/comp', |
tmp => '/dev/shm/comp', |
29 |
}; |
}; |
30 |
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my $debug = 1; |
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31 |
my $skip_extensions_regex = qr/\.(?:sw[a-z]|gif|png|jpeg|jpg|avi|rar|zip|bz2|gz|tgz|avi|mpeg|mpg|tmp|temp)$/i; |
my $skip_extensions_regex = qr/\.(?:sw[a-z]|gif|png|jpeg|jpg|avi|rar|zip|bz2|gz|tgz|avi|mpeg|mpg|tmp|temp)$/i; |
32 |
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|
33 |
# don't compress files smaller than this |
# don't compress files smaller than this |
76 |
return unpack("L", $buff); |
return unpack("L", $buff); |
77 |
} |
} |
78 |
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sub unlink_all { |
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my $file = shift; |
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warn "# unlink_all( $file )\n"; |
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my $path = fixup( $file ); |
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unlink $path || return 0; |
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my $tmp = $mount->{tmp} . '/' . $file; |
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unlink $tmp if ( -e $tmp ); |
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delete( $pending->{$file} ); |
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return 1; |
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} |
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79 |
sub x_getattr { |
sub x_getattr { |
80 |
my ($file) = fixup(shift); |
my ($file) = fixup(shift); |
81 |
my (@list) = lstat($file); |
my (@list) = lstat($file); |
96 |
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|
97 |
sub file_copy { |
sub file_copy { |
98 |
my ( $s_opt, $s_path, $d_opt, $d_path ) = @_; |
my ( $s_opt, $s_path, $d_opt, $d_path ) = @_; |
99 |
warn "## file_copy( $s_opt $s_path [",-s $s_path,"] $d_opt $d_path [",-e $d_path ? -s $d_path : 'new',"])\n"; |
warn "## file_copy( $s_opt $s_path [",-s $s_path,"] $d_opt $d_path [",-e $d_path ? -s $d_path : 'new',"])\n" if $debug; |
100 |
open(my $s, $s_opt, $s_path ) || confess "can't open $s_path: $!\npending = ", dump( $pending ); |
open(my $s, $s_opt, $s_path ) || confess "can't open $s_path: $!\npending = ", dump( $pending ); |
101 |
open(my $d, $d_opt, $d_path ) || confess "can't open $d_path: $!"; |
open(my $d, $d_opt, $d_path ) || confess "can't open $d_path: $!"; |
102 |
my $buff; |
my $buff; |
142 |
trunc => $mode && O_TRUNC, |
trunc => $mode && O_TRUNC, |
143 |
}; |
}; |
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my $path = fixup($file); |
my $path = fixup($file); |
145 |
warn "# open( $file, $mode ) pending: ", $pending->{$file}->{open}, " mode $mode: ", dump( $mode_desc )," $path [", -s $path, "]\n"; |
warn "## open( $file, $mode ) pending: ", $pending->{$file}->{open}, " mode $mode: ", dump( $mode_desc )," $path [", -s $path, "]\n" if $debug; |
146 |
my $fh; |
my $fh; |
147 |
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|
148 |
my $tmp = $mount->{tmp} . '/' . $file; |
my $tmp = $mount->{tmp} . '/' . $file; |
152 |
my $dest_path = $tmp; |
my $dest_path = $tmp; |
153 |
$dest_path =~ s!/[^/]+$!!; #!vim-fix |
$dest_path =~ s!/[^/]+$!!; #!vim-fix |
154 |
mkpath $dest_path unless -e $dest_path; |
mkpath $dest_path unless -e $dest_path; |
155 |
file_copy( '<:gzip', $path, '>', $tmp ); |
if ( -s $path ) { |
156 |
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file_copy( '<:gzip', $path, '>', $tmp ) |
157 |
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} else { |
158 |
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warn "ERROR: filesystem corruption, $path is zero size\n"; |
159 |
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} |
160 |
$path = $tmp; |
$path = $tmp; |
161 |
} |
} |
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warn ">>> open abs path: $path [", -e $path ? -s $path : 'new' , "]\n"; |
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return -$! unless sysopen($fh , $path, $mode); |
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warn ">>> after open [",-s $path, "]\n"; |
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close($fh); |
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163 |
$pending->{$file}->{path} = $path; |
if ( sysopen($fh , $path, $mode) ) { |
164 |
return 0; |
close($fh) || confess "can't close $path: $!"; |
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warn "<<< open $path [", -e $path ? -s $path : 'new' , "]\n"; |
166 |
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$pending->{$file}->{path} = $path; |
167 |
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return 0; |
168 |
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} else { |
169 |
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warn "ERROR: can't open $path : $!"; |
170 |
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return -$!; |
171 |
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} |
172 |
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173 |
} |
} |
174 |
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175 |
sub x_read { |
sub x_read { |
193 |
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194 |
sub x_write { |
sub x_write { |
195 |
my ($file,$buf,$off) = @_; |
my ($file,$buf,$off) = @_; |
196 |
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197 |
$pending->{$file}->{write}++; |
$pending->{$file}->{write}++; |
198 |
my $rv; |
my $rv; |
199 |
my $path = fixup($file); |
my $path = fixup($file); |
206 |
return -ENOSYS() unless open($fh,'+<',$pending->{$file}->{path}); |
return -ENOSYS() unless open($fh,'+<',$pending->{$file}->{path}); |
207 |
if($rv = seek( $fh ,$off,SEEK_SET)) { |
if($rv = seek( $fh ,$off,SEEK_SET)) { |
208 |
$rv = print( $fh $buf ); |
$rv = print( $fh $buf ); |
209 |
warn "## ", $pending->{$file}->{path}, " $off ",length( $buf ), "\n" if $debug; |
warn "## write ", $pending->{$file}->{path}, " $off ",length( $buf ), "\n" if $debug; |
210 |
} |
} |
211 |
$rv = -ENOSYS() unless $rv; |
$rv = -ENOSYS() unless $rv; |
212 |
close($fh); |
close($fh); |
216 |
sub err { return (-shift || -$!) } |
sub err { return (-shift || -$!) } |
217 |
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218 |
sub x_readlink { return readlink(fixup(shift)); } |
sub x_readlink { return readlink(fixup(shift)); } |
219 |
sub x_unlink { return unlink_all( shift ) ? 0 : -$! } |
sub x_unlink { |
220 |
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my $file = shift; |
221 |
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my $path = fixup( $file ); |
222 |
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223 |
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if ( $file =~ m#\Q/.fuse_hidden\E# ) { |
224 |
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return unlink $path ? 0 : -$1; |
225 |
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} |
226 |
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227 |
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warn "# unlink( $file )\n"; |
228 |
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229 |
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unlink $path || return 0; |
230 |
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231 |
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my $tmp = $mount->{tmp} . '/' . $file; |
232 |
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unlink $tmp if ( -e $tmp ); |
233 |
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234 |
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delete( $pending->{$file} ); |
235 |
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return 0; |
236 |
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} |
237 |
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238 |
sub x_symlink { return symlink(shift,fixup(shift)) ? 0 : -$!; } |
sub x_symlink { return symlink(shift,fixup(shift)) ? 0 : -$!; } |
239 |
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240 |
sub x_rename { |
sub x_rename { |
241 |
my ($old) = fixup(shift); |
my ($old,$new) = @_; |
242 |
my ($new) = fixup(shift); |
my $old_path = fixup($old); |
243 |
my ($err) = rename($old,$new) ? 0 : -ENOENT(); |
my $new_path = fixup($new); |
244 |
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$new_path .= '.gz' if ( $old_path =~ m/\.gz$/ && $new_path !~ m/\.gz$/ ); |
245 |
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246 |
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my $err = rename($old_path,$new_path) ? 0 : -ENOENT(); |
247 |
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warn "## rename( $old_path => $new_path ) = $err\n"; |
248 |
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249 |
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my $tmp = $mount->{tmp} . '/' . $old; |
250 |
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if ( -e $tmp ) { |
251 |
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if ( $new =~ m#\Q/.fuse_hidden\E# ) { |
252 |
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unlink $tmp || confess "can't unlink $tmp for $new\n"; |
253 |
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} else { |
254 |
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my $new_tmp = $mount->{tmp} . '/' . $new; |
255 |
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rename $tmp, $new_tmp || confess "can't rename $tmp -> $new_tmp : $!"; |
256 |
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} |
257 |
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} |
258 |
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259 |
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if (defined( $pending->{$old} )) { |
260 |
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$pending->{$new} = $pending->{$old}; |
261 |
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262 |
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my $path = $pending->{$old}->{path}; |
263 |
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$path =~ s/\Q$old\E/$new/; |
264 |
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$pending->{$new}->{path} = $path; |
265 |
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266 |
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delete( $pending->{$old} ); |
267 |
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warn "## tweaking pending to ", dump( $pending ) if $debug; |
268 |
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} |
269 |
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270 |
return $err; |
return $err; |
271 |
} |
} |
272 |
sub x_link { return link(fixup(shift),fixup(shift)) ? 0 : -$! } |
sub x_link { return link(fixup(shift),fixup(shift)) ? 0 : -$! } |
299 |
$no_gz =~ s/\.gz$//; |
$no_gz =~ s/\.gz$//; |
300 |
rename $path, $no_gz || confess "can't rename $path -> $no_gz: $!"; |
rename $path, $no_gz || confess "can't rename $path -> $no_gz: $!"; |
301 |
} |
} |
302 |
warn "## truncate( $file $size ) $path [", -s $path, "]\n"; |
warn "## truncate( $file $size ) $path [", -s $path, "] = $rv\n" if $debug; |
303 |
$pending->{$file}->{write}++; |
$pending->{$file}->{write}++; |
304 |
return $rv; |
return $rv; |
305 |
} |
} |
320 |
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|
321 |
sub x_release { |
sub x_release { |
322 |
my ( $file, $mode ) = @_; |
my ( $file, $mode ) = @_; |
323 |
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324 |
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if ( $file =~ m#\Q/.fuse_hidden\E# ) { |
325 |
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warn "release internal $file\n" if $debug; |
326 |
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delete( $pending->{$file} ); |
327 |
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return 0; |
328 |
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} |
329 |
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330 |
if ( ! defined( $pending->{$file} ) ) { |
if ( ! defined( $pending->{$file} ) ) { |
331 |
warn "release $file, NO PENDING DATA\n"; |
warn "release $file, NO PENDING DATA\n"; |
332 |
return 0; |
return 0; |
344 |
} |
} |
345 |
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|
346 |
if ( $file =~ $skip_extensions_regex ) { |
if ( $file =~ $skip_extensions_regex ) { |
347 |
warn "release $file $mode -- uncompressed\n"; |
warn "release $file [",-s $path,"] skipped compression\n"; |
348 |
file_copy( '<', $path, '>', $dest ) if ( $path ne $dest ); |
file_copy( '<', $path, '>', $dest ) if ( $path ne $dest ); |
349 |
} elsif ( -s $path < $min_compress_size ) { |
} elsif ( -s $path < $min_compress_size ) { |
350 |
warn "release $file -- uncompressed, too small [", -s $path, "]\n"; |
warn "release $file [",-s $path,"] uncompressed, too small\n"; |
351 |
file_copy( '<', $path, '>', $dest ) if ( $path ne $dest ); |
file_copy( '<', $path, '>', $dest ) if ( $path ne $dest ); |
352 |
} else { |
} else { |
353 |
warn "release $file $mode -- compressing\n"; |
warn "release $file [",-s $path,"] compressing\n"; |
354 |
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|
355 |
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my $comp = $dest . '.gz'; |
356 |
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file_copy( '<', $path, '>:gzip', $comp ); |
357 |
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|
358 |
file_copy( '<', $path, '>:gzip', $dest . '.gz' ); |
my ( $size_path, $size_comp ) = ( -s $path, -s $comp ); |
359 |
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|
360 |
# FIXME add timeout to remove uncompressed version? |
if ( $size_path <= $size_comp ) { |
361 |
# FIXME leave uncompressed file if smaller than compressed |
warn ">>> $size_path <= $size_comp leaving uncompressed\n"; |
362 |
unlink $path || warn "can't remove $path: $!"; |
unlink $comp || warn "can't reamove: $comp: $!"; |
363 |
|
} else { |
364 |
|
warn ">>> compressed $size_path -> $size_comp ",int(($size_comp * 100) / $size_path),"%\n"; |
365 |
|
# FIXME add timeout to remove uncompressed version? |
366 |
|
unlink $path || warn "can't remove $path: $!"; |
367 |
|
} |
368 |
} |
} |
369 |
} else { |
} else { |
370 |
warn "release $file, but still used ", $pending->{$file}->{open} , " times, delaying compression\n"; |
warn "release $file, but still used ", $pending->{$file}->{open} , " times, delaying compression\n"; |
401 |
statfs =>"main::x_statfs", |
statfs =>"main::x_statfs", |
402 |
release =>"main::x_release", |
release =>"main::x_release", |
403 |
# threaded=>1, |
# threaded=>1, |
404 |
# debug => 1, |
debug => $fuse_debug, |
405 |
); |
); |