109 lines
3.3 KiB
Factor
109 lines
3.3 KiB
Factor
! Copyright (C) 2008 Doug Coleman.
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! See http://factorcode.org/license.txt for BSD license.
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USING: accessors assocs classes.struct combinators
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combinators.short-circuit continuations csv fry io.backend
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io.encodings.utf8 io.files.info io.files.info.unix io.pathnames kernel
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libc math math.parser sequences splitting strings system
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unix.statfs.linux unix.statvfs.linux ;
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FROM: csv => delimiter ;
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IN: io.files.info.unix.linux
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TUPLE: linux-file-system-info < unix-file-system-info
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namelen ;
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M: linux new-file-system-info linux-file-system-info new ;
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M: linux file-system-statfs ( path -- statfs )
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\ statfs64 <struct> [ statfs64 io-error ] keep ;
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M: linux statfs>file-system-info ( file-system-info statfs -- file-system-info' )
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{
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[ f_type>> >>type ]
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[ f_bsize>> >>block-size ]
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[ f_blocks>> >>blocks ]
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[ f_bfree>> >>blocks-free ]
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[ f_bavail>> >>blocks-available ]
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[ f_files>> >>files ]
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[ f_ffree>> >>files-free ]
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[ f_fsid>> >>id ]
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[ f_namelen>> >>namelen ]
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[ f_frsize>> >>preferred-block-size ]
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! [ statfs64-f_spare >>spare ]
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} cleave ;
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M: linux file-system-statvfs ( path -- statvfs )
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\ statvfs64 <struct> [ statvfs64 io-error ] keep ;
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M: linux statvfs>file-system-info ( file-system-info statfs -- file-system-info' )
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{
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[ f_flag>> >>flags ]
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[ f_namemax>> >>name-max ]
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} cleave ;
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TUPLE: mtab-entry file-system-name mount-point type options
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frequency pass-number ;
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! octal escape sequences, e.g. "/media/erg/4TB\\040E"
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: decode-mount-point ( string -- string' )
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dup "\\" split
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dup length 1 > [
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nip 1 cut
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[ 3 cut [ oct> 1string ] dip append ] map append concat
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] [
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drop
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] if ;
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: mtab-csv>mtab-entry ( csv -- mtab-entry )
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[ mtab-entry new ] dip
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{
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[ first >>file-system-name ]
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[ second decode-mount-point >>mount-point ]
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[ third >>type ]
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[ fourth string>csv first >>options ]
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[ 4 swap ?nth [ 0 ] unless* >>frequency ]
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[ 5 swap ?nth [ 0 ] unless* >>pass-number ]
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} cleave ;
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: parse-mtab ( -- array )
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CHAR: \s [ "/etc/mtab" utf8 file>csv ] with-delimiter
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[ mtab-csv>mtab-entry ] map ;
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: mtab-entry>file-system-info ( mtab-entry -- file-system-info/f )
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'[
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_ [ mount-point>> file-system-info ] keep
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{
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[ file-system-name>> >>device-name ]
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[ mount-point>> >>mount-point ]
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[ type>> >>type ]
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} cleave
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] [ { [ libc-error? ] [ errno>> EACCES = ] } 1&& ] ignore-error/f ;
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M: linux file-systems
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parse-mtab [ mtab-entry>file-system-info ] map sift ;
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: (find-mount-point) ( path mtab-paths -- mtab-entry )
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2dup at* [
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2nip
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] [
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drop [ parent-directory ] dip (find-mount-point)
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] if ;
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: find-mount-point ( path -- mtab-entry )
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resolve-symlinks
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parse-mtab [ [ mount-point>> ] keep ] H{ } map>assoc (find-mount-point) ;
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M: linux file-system-info ( path -- file-system-info )
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normalize-path
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[
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[ new-file-system-info ] dip
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[ file-system-statfs statfs>file-system-info ]
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[ file-system-statvfs statvfs>file-system-info ] bi
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file-system-calculations
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] keep
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find-mount-point
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{
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[ file-system-name>> >>device-name drop ]
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[ mount-point>> >>mount-point drop ]
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[ type>> >>type ]
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} 2cleave ;
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