view comparison.txt @ 2549:e1831f06eef1

Added ability to clone from a local repository to a (new) remote one. Rearranged the clone command a good bit to make sure it validates that the source does exist and that the destination doesn't before doing anything. Before I moved the source repo check it would create the destination repository before it verified the source existed. Moved the responsibility for creating the destination repo root directory entirly into the localrepo class so that local to local cloning doesn't break. This also simplifies the code a bit since it's no longer being done in both clone and init. Changed the names of the 'repo' and 'other' variables to 'dest_repo' and 'src_repo' to maintain my sanity. Passes 82/83 tests. The only failure is the version number test, which I suspect is supposed to fail since it comes from a generated file.
author Sean Meiners <sean.meiners@linspire.com>
date Fri, 30 Jun 2006 19:24:02 -0700
parents 2073e5a71008
children
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                    Mercurial      git                     BK (*)
storage             revlog delta   compressed revisions    SCCS weave
storage naming      by filename    by revision hash        by filename
merge               file DAGs      changeset DAG           file DAGs?
consistency         SHA1           SHA1                    CRC
signable?           yes            yes                     no

retrieve file tip   O(1)           O(1)                    O(revs)
add rev             O(1)           O(1)                    O(revs)
find prev file rev  O(1)           O(changesets)           O(revs)
annotate file       O(revs)        O(changesets)           O(revs)
find file changeset O(1)           O(changesets)           ?

checkout            O(files)       O(files)                O(revs)?
commit              O(changes)     O(changes)              ?
                    6 patches/s    6 patches/s             slow
diff working dir    O(changes)     O(changes)              ?
                    < 1s           < 1s                    ?
tree diff revs      O(changes)     O(changes)              ?
                    < 1s           < 1s                    ?
hardlink clone      O(files)       O(revisions)            O(files)

find remote csets   O(log new)     rsync: O(revisions)     ?
                                   git-http: O(changesets)
pull remote csets   O(patch)       O(modified files)       O(patch)

repo growth         O(patch)       O(revisions)            O(patch)
 kernel history     300M           3.5G?                   250M?
lines of code       2500           6500 (+ cogito)         ??

* I've never used BK so this is just guesses