purge: simplify safety net for case mangling filesystems
Relying on the exact return of statwalk would cause us to abort
when there was at least one tracked file inside an ignored directory.
This patch forces an extra walk of the whole working directory even
on sane filesystems, where it wouldn't be needed.
Fixes issue621.
% init
% setup
% delete an empty directory
empty_dir
Removing directory empty_dir
directory
r1
% delete an untracked directory
untracked_dir/untracked_file1
untracked_dir/untracked_file2
Removing file untracked_dir/untracked_file1
Removing file untracked_dir/untracked_file2
Removing directory untracked_dir
directory
r1
% delete an untracked file
untracked_file
Removing file untracked_file
directory
r1
% delete an untracked file in a tracked directory
directory/untracked_file
Removing file directory/untracked_file
directory
r1
% delete nested directories
untracked_directory/nested_directory
Removing directory untracked_directory/nested_directory
Removing directory untracked_directory
directory
r1
% delete nested directories from a subdir
untracked_directory/nested_directory
Removing directory untracked_directory/nested_directory
Removing directory untracked_directory
directory
r1
% delete only part of the tree
untracked_directory/nested_directory
Removing directory untracked_directory/nested_directory
Removing directory untracked_directory
directory
r1
directory/untracked_file
% skip ignored files if --all not specified
directory
ignored
r1
ignored
Removing file ignored
directory
r1
% abort with missing files until we support name mangling filesystems
refused to run
untracked_file still around
untracked_file
refused to run
untracked_file still around
Removing file untracked_file
directory
r1
% tracked file in ignored directory (issue621)
untracked_file
Removing file untracked_file
% skip excluded files
directory
excluded_file
r1
% skip files in excluded dirs
directory
excluded_dir
r1
file
% skip excluded empty dirs
directory
excluded_dir
r1
% skip patterns