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New option --remember, to remember choices and re-apply them #25

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New option --remember, to remember choices and re-apply them #25

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24 changes: 21 additions & 3 deletions fastdupes.py
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Original file line number Diff line number Diff line change
Expand Up @@ -497,7 +497,8 @@ def print_defaults():
value = ', '.join(value)
print "%*s: %s" % (maxlen, key, value)

def delete_dupes(groups, prefer_list=None, interactive=True, dry_run=False):
def delete_dupes(groups, prefer_list=None, remember=False, interactive=True,
dry_run=False):
"""Code to handle the :option:`--delete` command-line option.

:param groups: A list of groups of paths.
Expand All @@ -517,12 +518,26 @@ def delete_dupes(groups, prefer_list=None, interactive=True, dry_run=False):
"""
prefer_list = prefer_list or []
prefer_re = multiglob_compile(prefer_list, prefix=True)
remem_dict = {}

for pos, group in enumerate(groups.values()):
preferred = [x for x in group if prefer_re.match(x)]
pruneList = [x for x in group if x not in preferred]
if not preferred:
if interactive:
if remember:
default = ""
dupeList = sorted(group)
dupeDirs = repr(map(os.path.dirname, dupeList))
if dupeDirs in remem_dict:
choice = remem_dict[dupeDirs]
out = [int(x) - 1 for x in choice.split()]
pruneList = [val for pos, val in enumerate(dupeList) if pos not in out]
else:
pruneList = pruneUI(dupeList, pos + 1, len(groups))
default_new = [str(pos+1) for pos, val in enumerate(dupeList) if val not in pruneList]
remem_dict[dupeDirs] = " ".join(default_new)
preferred = [x for x in dupeList if x not in pruneList]
elif interactive:
pruneList = pruneUI(group, pos + 1, len(groups))
preferred = [x for x in group if x not in pruneList]
else:
Expand Down Expand Up @@ -575,6 +590,9 @@ def main():
metavar="PATH", default=[], help="Append a globbing pattern which "
"--delete should automatically prefer (rather than prompting) when it "
"occurs in a list of duplicates.")
behaviour_group.add_option('--remember', action="store_true",
dest="remember", metavar="REMEMBER", help="Remember choices "
"and automatically apply them if the same set of directories repeats.")
behaviour_group.add_option('--noninteractive', action="store_true",
dest="noninteractive", help="When using --delete, automatically assume"
" 'all' for any groups with no --prefer matches rather than prompting")
Expand All @@ -595,7 +613,7 @@ def main():
groups = find_dupes(args, opts.exact, opts.exclude, opts.min_size)

if opts.delete:
delete_dupes(groups, opts.prefer, not opts.noninteractive,
delete_dupes(groups, opts.prefer, opts.remember, not opts.noninteractive,
opts.dry_run)
else:
for dupeSet in groups.values():
Expand Down