105 lines
3.6 KiB
Python
105 lines
3.6 KiB
Python
#
|
|
# Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 The SCons Foundation
|
|
#
|
|
# Permission is hereby granted, free of charge, to any person obtaining
|
|
# a copy of this software and associated documentation files (the
|
|
# "Software"), to deal in the Software without restriction, including
|
|
# without limitation the rights to use, copy, modify, merge, publish,
|
|
# distribute, sublicense, and/or sell copies of the Software, and to
|
|
# permit persons to whom the Software is furnished to do so, subject to
|
|
# the following conditions:
|
|
#
|
|
# The above copyright notice and this permission notice shall be included
|
|
# in all copies or substantial portions of the Software.
|
|
#
|
|
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
|
|
# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
|
|
# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
|
|
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
|
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
|
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
#
|
|
|
|
__revision__ = "src/engine/SCons/Scanner/Dir.py 3842 2008/12/20 22:59:52 scons"
|
|
|
|
import SCons.Node.FS
|
|
import SCons.Scanner
|
|
|
|
def only_dirs(nodes):
|
|
is_Dir = lambda n: isinstance(n.disambiguate(), SCons.Node.FS.Dir)
|
|
return filter(is_Dir, nodes)
|
|
|
|
def DirScanner(**kw):
|
|
"""Return a prototype Scanner instance for scanning
|
|
directories for on-disk files"""
|
|
kw['node_factory'] = SCons.Node.FS.Entry
|
|
kw['recursive'] = only_dirs
|
|
return apply(SCons.Scanner.Base, (scan_on_disk, "DirScanner"), kw)
|
|
|
|
def DirEntryScanner(**kw):
|
|
"""Return a prototype Scanner instance for "scanning"
|
|
directory Nodes for their in-memory entries"""
|
|
kw['node_factory'] = SCons.Node.FS.Entry
|
|
kw['recursive'] = None
|
|
return apply(SCons.Scanner.Base, (scan_in_memory, "DirEntryScanner"), kw)
|
|
|
|
skip_entry = {}
|
|
|
|
skip_entry_list = [
|
|
'.',
|
|
'..',
|
|
'.sconsign',
|
|
# Used by the native dblite.py module.
|
|
'.sconsign.dblite',
|
|
# Used by dbm and dumbdbm.
|
|
'.sconsign.dir',
|
|
# Used by dbm.
|
|
'.sconsign.pag',
|
|
# Used by dumbdbm.
|
|
'.sconsign.dat',
|
|
'.sconsign.bak',
|
|
# Used by some dbm emulations using Berkeley DB.
|
|
'.sconsign.db',
|
|
]
|
|
|
|
for skip in skip_entry_list:
|
|
skip_entry[skip] = 1
|
|
skip_entry[SCons.Node.FS._my_normcase(skip)] = 1
|
|
|
|
do_not_scan = lambda k: not skip_entry.has_key(k)
|
|
|
|
def scan_on_disk(node, env, path=()):
|
|
"""
|
|
Scans a directory for on-disk files and directories therein.
|
|
|
|
Looking up the entries will add these to the in-memory Node tree
|
|
representation of the file system, so all we have to do is just
|
|
that and then call the in-memory scanning function.
|
|
"""
|
|
try:
|
|
flist = node.fs.listdir(node.abspath)
|
|
except (IOError, OSError):
|
|
return []
|
|
e = node.Entry
|
|
for f in filter(do_not_scan, flist):
|
|
# Add ./ to the beginning of the file name so if it begins with a
|
|
# '#' we don't look it up relative to the top-level directory.
|
|
e('./' + f)
|
|
return scan_in_memory(node, env, path)
|
|
|
|
def scan_in_memory(node, env, path=()):
|
|
"""
|
|
"Scans" a Node.FS.Dir for its in-memory entries.
|
|
"""
|
|
try:
|
|
entries = node.entries
|
|
except AttributeError:
|
|
# It's not a Node.FS.Dir (or doesn't look enough like one for
|
|
# our purposes), which can happen if a target list containing
|
|
# mixed Node types (Dirs and Files, for example) has a Dir as
|
|
# the first entry.
|
|
return []
|
|
entry_list = filter(do_not_scan, entries.keys())
|
|
entry_list.sort()
|
|
return map(lambda n, e=entries: e[n], entry_list)
|