factor/basis/io/directories/search/search.factor

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Factor
Executable File

! Copyright (C) 2008 Doug Coleman.
! See http://factorcode.org/license.txt for BSD license.
USING: accessors arrays continuations deques dlists fry
io.directories io.files io.files.info io.pathnames kernel
sequences system vocabs.loader ;
IN: io.directories.search
<PRIVATE
TUPLE: directory-iterator path bfs queue ;
: qualified-directory ( path -- seq )
dup directory-files [ append-path ] with map ;
: push-directory ( path iter -- )
[ qualified-directory ] dip [
[ queue>> ] [ bfs>> ] bi
[ push-front ] [ push-back ] if
] curry each ;
: <directory-iterator> ( path bfs? -- iterator )
<dlist> directory-iterator boa
dup path>> over push-directory ;
: next-file ( iter -- file/f )
dup queue>> deque-empty? [ drop f ] [
dup queue>> pop-back dup link-info directory?
[ over push-directory next-file ] [ nip ] if
] if ;
: iterate-directory ( iter quot: ( obj -- ? ) -- obj )
over next-file [
over call
[ 2nip ] [ iterate-directory ] if*
] [
2drop f
] if* ; inline recursive
PRIVATE>
: each-file ( path bfs? quot: ( obj -- ) -- )
[ <directory-iterator> ] dip
[ f ] compose iterate-directory drop ; inline
: recursive-directory ( path bfs? -- paths )
[ ] accumulator [ each-file ] dip ;
: find-file ( path bfs? quot: ( obj -- ? ) -- path/f )
'[
_ _ _ [ <directory-iterator> ] dip
[ keep and ] curry iterate-directory
] [ drop f ] recover ; inline
: find-all-files ( path bfs? quot: ( obj -- ? ) -- paths/f )
'[
_ _ _ [ <directory-iterator> ] dip
pusher [ [ f ] compose iterate-directory drop ] dip
] [ drop f ] recover ; inline
ERROR: file-not-found ;
: find-in-directories ( directories bfs? quot: ( obj -- ? ) -- path'/f )
[
'[ _ _ find-file [ file-not-found ] unless* ] attempt-all
] [
drop f
] recover ;
: find-all-in-directories ( directories bfs? quot: ( obj -- ? ) -- paths/f )
'[ _ _ find-all-files ] map concat ;
os windows? [ "io.directories.search.windows" require ] when