Using a git bundle and bittorrent to clone I2P with git

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eyedeekay
Posts: 32
Joined: 21 Jul 2018 06:53

Using a git bundle and bittorrent to clone I2P with git

Post by eyedeekay »

[big]Using a git bundle to fetch the I2P source code[/big]

Cloning large software repositories over I2P can be difficult, and using git can
sometimes make this harder. Fortunately, it can also sometimes make it easier.
Git has a

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git bundle
command which can be used to turn a git repository
into a file which git can then clone, fetch, or import from a location on your
local disk. By combining this capability with bittorrent downloads, we can solve
our remaining problems with

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git clone
.

[big]Before you Start[/big]

If you intend to generate a git bundle, you must already possess a full copy
of the git repository, not the mtn repository. You can get it from github
or from git.idk.i2p, but a shallow clone(a clone done to --depth=1) [cur]will not[/cur]
[cur]work[/cur]. It will fail silently, creating what looks like a bundle, but when you
try to clone it it will fail. If you are just retrieving a pre-generated git
bundle, then this section does not apply to you.

[big]Fetching I2P Source via Bittorrent[/big]

Someone will need to supply you with a torrent file or a magnet link
corresponding to an existing

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git bundle
that they have already generated
for you. A recent, correctly-generated bundle of the mainline i2p.i2p source
code as-of Wednesday, March 18, 2020, can be found inside of I2P at my pastebin
paste.idk.i2p/f/4hq37i.

Once you have a bundle, you will need to use git to create a working repository
from it. If you're using GNU/Linux and i2psnark, the git bundle should be
located in \$HOME/.i2p/i2psnark or, as a service on Debian,
/var/lib/i2p/i2p-config/i2psnark. If you are using BiglyBT on GNU/Linux, it is
probably at "\$HOME/BiglyBT Downloads/" instead. The examples here assume
I2PSnark on GNU/Linux, if you use something else, replace the path to the
bundle with the download directory preferred by your client and platform.

[small]Using

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git clone
[/small]

Cloning from a git bundle is easy, just:

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    git clone $HOME/.i2p/i2psnark/i2p.i2p.bundle
If you get the following error, try using git init and git fetch manually
instead.

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    fatal: multiple updates for ref 'refs/remotes/origin/master' not allowed
[small]Using

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git init
and

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git fetch
[/small]

First, create an i2p.i2p directory to turn into a git repository.

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    mkdir i2p.i2p && cd i2p.i2p
Next, initialize an empty git repository to fetch changes back into.

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    git init
Finally, fetch the repository from the bundle.

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    git fetch $HOME/.i2p/i2psnark/i2p.i2p.bundle
[small]Replace the bundle remote with the upstream remote[/small]

Now that you have a bundle, you can keep up with changes by setting the remote
to the upstream repository source.

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    git remote set-url origin git@127.0.0.1:i2p-hackers/i2p.i2p
[big]Generating a Bundle[/big]

First, follow the [Git guide for Users](GIT.md) until you have a successfully

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--unshallow
ed clone of clone of the i2p.i2p repository. If you already
have a clone, make sure you run

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git fetch --unshallow
before you generate
a torrent bundle.

Once you have that, simply run the corresponding ant target:

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    ant bundle
and copy the resulting bundle into your I2PSnark downloads directory. For
instance:

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    cp i2p.i2p.bundle* $HOME/.i2p/i2psnark/
In a minute or two, I2PSnark will pick up on the torrent. Click on the "Start"
button to begin seeding the torrent.
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