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RefactorPlan

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+
+Here we take notes of the strange stuff, so we can refactor them after
+Pardus 2007 release.
+
+
+==> Locale support
+* bindtextdomain and textdomain calls are not necessary, because
+gettext.translation() dont use them.
+
+* setlocale call is probably necessary for some stuff, but not for
+message translation, it seems gettext.translation() api looks for
+environment LC_ALL, LC_MESSAGES anyway.
+
+* pygettext.py shouldn't be needed at all. Plain xgettext works with
+python source.
+
+
+==> Utility functions
+* sha1_file is suboptimal for binary files and sha1_data has some
+exception confusion. These two functions should be a lot simpler.
+
+* get_file_hashes is overly complex and contains strange code like:
+for r, d, f in os.walk(parent, topdown=False): pass
+
+* dir_size tries to calculate symlink lengths, this is probably not very
+helpful, since in most cases, they fit in the inode, and wont take any
+extra space at all. We can keep the number of file in the index though.
+That way we can calculate package size + (nr of files * inode size of fs)
+to give a more correct required disk size.
+
+* what the heck is unzip there? it is not even used at all and defined like:
+def unzip(seq):
+    return zip(*seq)
+
+
+==> code readability
+* Public functions should contain doc strings.
+
+* Python builtins like file, list, etc should be avoided in variable names.
+There is even a file.py module!
+
+* a,b,c,d,f,r,_i are equally bad.
+
+* some import'ed modules are not used inside the importer modules, cleanup needed.
+
+* Would be very good if we can avoid "from x import y" form, it makes it
+harder to reload modules.
+
+
+==> exceptions
+* Current model is bad. Exception names should tell what is the error type. Instead
+we have one Error exception in every module. If I call pisi.api.install("lala"),
+I should get pisi.api.PackageNotFound or pisi.install.PackageNotFound or something
+like that. For every kind of error, you get pisi.api.Error now, and only way to find
+out exact error is try to parse error string (which is localized).
+
+* class Exception(Exception) is evil.
+
+* There shouldn't be a bare Except: clause in pisi modules.
+
+
+==> database
+* brr...
+