diff options
Diffstat (limited to 'src/sugar/util.py')
| -rw-r--r-- | src/sugar/util.py | 52 |
1 files changed, 41 insertions, 11 deletions
diff --git a/src/sugar/util.py b/src/sugar/util.py index 99092ee..7b33141 100644 --- a/src/sugar/util.py +++ b/src/sugar/util.py @@ -31,8 +31,10 @@ import logging import atexit import traceback + _ = lambda msg: gettext.dgettext('sugar-toolkit', msg) + def printable_hash(in_hash): """Convert binary hash data into printable characters.""" printable = "" @@ -40,12 +42,14 @@ def printable_hash(in_hash): printable = printable + binascii.b2a_hex(char) return printable + def sha_data(data): """sha1 hash some bytes.""" sha_hash = hashlib.sha1() sha_hash.update(data) return sha_hash.digest() + def unique_id(data = ''): """Generate a likely-unique ID for whatever purpose @@ -66,6 +70,7 @@ def unique_id(data = ''): ACTIVITY_ID_LEN = 40 + def is_hex(s): try: int(s, 16) @@ -74,6 +79,7 @@ def is_hex(s): return True + def validate_activity_id(actid): """Validate an activity ID.""" if not isinstance(actid, (str, unicode)): @@ -84,6 +90,7 @@ def validate_activity_id(actid): return False return True + def set_proc_title(title): """Sets the process title so ps and top show more descriptive names. This does not modify argv[0] @@ -106,13 +113,17 @@ def set_proc_title(title): except Exception: return False + class Node(object): + __slots__ = ['prev', 'next', 'me'] + def __init__(self, prev, me): self.prev = prev self.me = me self.next = None + class LRU: """ Implementation of a length-limited O(1) LRU queue. @@ -120,20 +131,24 @@ class LRU: http://pype.sourceforge.net Copyright 2003 Josiah Carlson. """ - # pylint: disable-msg=W0102,W0612 + def __init__(self, count, pairs=[]): + # pylint: disable-msg=W0102,W0612 self.count = max(count, 1) self.d = {} self.first = None self.last = None for key, value in pairs: self[key] = value + def __contains__(self, obj): return obj in self.d + def __getitem__(self, obj): a = self.d[obj].me self[a[0]] = a[1] return a[1] + def __setitem__(self, obj, val): if obj in self.d: del self[obj] @@ -155,6 +170,7 @@ class LRU: a.next = None del self.d[a.me[0]] del a + def __delitem__(self, obj): nobj = self.d[obj] if nobj.prev: @@ -166,31 +182,37 @@ class LRU: else: self.last = nobj.prev del self.d[obj] + def __iter__(self): cur = self.first while cur != None: cur2 = cur.next yield cur.me[1] cur = cur2 + def iteritems(self): cur = self.first while cur != None: cur2 = cur.next yield cur.me cur = cur2 + def iterkeys(self): return iter(self.d) + def itervalues(self): for i, j in self.iteritems(): yield j + def keys(self): return self.d.keys() -units = [['%d year', '%d years', 356 * 24 * 60 * 60], - ['%d month', '%d months', 30 * 24 * 60 * 60], - ['%d week', '%d weeks', 7 * 24 * 60 * 60], - ['%d day', '%d days', 24 * 60 * 60], - ['%d hour', '%d hours', 60 * 60], + +units = [['%d year', '%d years', 356 * 24 * 60 * 60], + ['%d month', '%d months', 30 * 24 * 60 * 60], + ['%d week', '%d weeks', 7 * 24 * 60 * 60], + ['%d day', '%d days', 24 * 60 * 60], + ['%d hour', '%d hours', 60 * 60], ['%d minute', '%d minutes', 60]] AND = _(' and ') @@ -210,24 +232,28 @@ ELAPSED = _('%s ago') # strings need to be used, then we need to call ngettext() in a fake way so # xgettext will pick them up as plurals. + def ngettext(singular, plural, n): pass + # TRANS: Relative dates (eg. 1 month and 5 days). -ngettext('%d year', '%d years', 1) -ngettext('%d month', '%d months', 1) -ngettext('%d week', '%d weeks', 1) -ngettext('%d day', '%d days', 1) -ngettext('%d hour', '%d hours', 1) +ngettext('%d year', '%d years', 1) +ngettext('%d month', '%d months', 1) +ngettext('%d week', '%d weeks', 1) +ngettext('%d day', '%d days', 1) +ngettext('%d hour', '%d hours', 1) ngettext('%d minute', '%d minutes', 1) del ngettext # End of plurals hack + # gettext perfs hack (#7959) _i18n_timestamps_cache = LRU(60) + def timestamp_to_elapsed_string(timestamp, max_levels=2): levels = 0 time_period = '' @@ -265,9 +291,12 @@ def timestamp_to_elapsed_string(timestamp, max_levels=2): return ELAPSED % time_period + _tracked_paths = {} + class TempFilePath(str): + def __new__(cls, path=None): if path is None: fd, path = tempfile.mkstemp() @@ -293,6 +322,7 @@ class TempFilePath(str): else: _tracked_paths[self] -= 1 + def _cleanup_temp_files(): logging.debug('_cleanup_temp_files') for path in _tracked_paths.keys(): |