Re: Shallow clone

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Alexandre Julliard <julliard@xxxxxxxxxx> writes:

> There's also a problem with the packing, a clone --depth 1 currently
> results in a pack that's about 3 times as large as it should be.

That's interesting.

  : gitster; git clone -n --depth 1 git://127.0.0.1/git.git victim-001
  remote: Generating pack...
  remote: Done counting 6246 objects.
  remote: Deltifying 6246 objects.
  remote:  100% (6246/6246) done
  Indexing 6246 objects.
  remote: Total 6246, written 6246 (delta 3106), reused 4313 (delta 3106)
   100% (6246/6246) done
  Resolving 3106 deltas.
   100% (3106/3106) done
  : gitster; cd victim-001
  : gitster; ls -lh .git/objects/pack/
  total 9.6M
  drwxrwsr-x 2 junio src 4.0K 2006-11-11 23:52 ./
  drwxrwsr-x 4 junio src 4.0K 2006-11-11 23:52 ../
  -r--r--r-- 1 junio src 148K 2006-11-11 23:52 pack-f5f88d83....idx
  -r--r--r-- 1 junio src 9.5M 2006-11-11 23:52 pack-f5f88d83....pack

Repacking immediately after cloning brings it down to what is
expected.

  : gitster; git repack -a -d -f
  Generating pack...
  Done counting 6246 objects.
  Deltifying 6246 objects.
   100% (6246/6246) done
  Writing 6246 objects.
   100% (6246/6246) done
  Total 6246, written 6246 (delta 4815), reused 1407 (delta 0)
  Pack pack-f5f88d83524213e3ab05697ff75f245b1ef9081a created.
  : gitster; ls -lh .git/objects/pack/
  total 2.8M
  drwxrwsr-x 2 junio src 4.0K 2006-11-11 23:53 ./
  drwxrwsr-x 4 junio src 4.0K 2006-11-11 23:52 ../
  -rw-rw-r-- 1 junio src 148K 2006-11-11 23:53 pack-f5f88d83....idx
  -rw-rw-r-- 1 junio src 2.6M 2006-11-11 23:53 pack-f5f88d83....pack

In any case, after this "shallow" stuff, repeated "fetch --depth
99" seems to fetch 0 object and 3400 objects alternately, and
the shallow file alternates between 900 bytes and 11000 bytes.

We would need to take a deeper look into what this series does,
before moving it to 'next'.




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