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1 # 2 # Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 The SCons Foundation 3 # 4 # Permission is hereby granted, free of charge, to any person obtaining 5 # a copy of this software and associated documentation files (the 6 # "Software"), to deal in the Software without restriction, including 7 # without limitation the rights to use, copy, modify, merge, publish, 8 # distribute, sublicense, and/or sell copies of the Software, and to 9 # permit persons to whom the Software is furnished to do so, subject to 10 # the following conditions: 11 # 12 # The above copyright notice and this permission notice shall be included 13 # in all copies or substantial portions of the Software. 14 # 15 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY 16 # KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE 17 # WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 18 # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 19 # LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 20 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 21 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 22 # 23 24 __revision__ = "src/engine/SCons/Scanner/Dir.py 5110 2010/07/25 16:14:38 bdeegan" 25 26 import SCons.Node.FS 27 import SCons.Scanner 2830 is_Dir = lambda n: isinstance(n.disambiguate(), SCons.Node.FS.Dir) 31 return filter(is_Dir, nodes)3234 """Return a prototype Scanner instance for scanning 35 directories for on-disk files""" 36 kw['node_factory'] = SCons.Node.FS.Entry 37 kw['recursive'] = only_dirs 38 return apply(SCons.Scanner.Base, (scan_on_disk, "DirScanner"), kw)3941 """Return a prototype Scanner instance for "scanning" 42 directory Nodes for their in-memory entries""" 43 kw['node_factory'] = SCons.Node.FS.Entry 44 kw['recursive'] = None 45 return apply(SCons.Scanner.Base, (scan_in_memory, "DirEntryScanner"), kw)46 47 skip_entry = {} 48 49 skip_entry_list = [ 50 '.', 51 '..', 52 '.sconsign', 53 # Used by the native dblite.py module. 54 '.sconsign.dblite', 55 # Used by dbm and dumbdbm. 56 '.sconsign.dir', 57 # Used by dbm. 58 '.sconsign.pag', 59 # Used by dumbdbm. 60 '.sconsign.dat', 61 '.sconsign.bak', 62 # Used by some dbm emulations using Berkeley DB. 63 '.sconsign.db', 64 ] 65 66 for skip in skip_entry_list: 67 skip_entry[skip] = 1 68 skip_entry[SCons.Node.FS._my_normcase(skip)] = 1 69 70 do_not_scan = lambda k: not skip_entry.has_key(k) 7173 """ 74 Scans a directory for on-disk files and directories therein. 75 76 Looking up the entries will add these to the in-memory Node tree 77 representation of the file system, so all we have to do is just 78 that and then call the in-memory scanning function. 79 """ 80 try: 81 flist = node.fs.listdir(node.abspath) 82 except (IOError, OSError): 83 return [] 84 e = node.Entry 85 for f in filter(do_not_scan, flist): 86 # Add ./ to the beginning of the file name so if it begins with a 87 # '#' we don't look it up relative to the top-level directory. 88 e('./' + f) 89 return scan_in_memory(node, env, path)9092 """ 93 "Scans" a Node.FS.Dir for its in-memory entries. 94 """ 95 try: 96 entries = node.entries 97 except AttributeError: 98 # It's not a Node.FS.Dir (or doesn't look enough like one for 99 # our purposes), which can happen if a target list containing 100 # mixed Node types (Dirs and Files, for example) has a Dir as 101 # the first entry. 102 return [] 103 entry_list = filter(do_not_scan, entries.keys()) 104 entry_list.sort() 105 return map(lambda n, e=entries: e[n], entry_list)106 107 # Local Variables: 108 # tab-width:4 109 # indent-tabs-mode:nil 110 # End: 111 # vim: set expandtab tabstop=4 shiftwidth=4: 112
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