38 lines
1.5 KiB
Markdown
38 lines
1.5 KiB
Markdown
There are three ways to implement a new special remote:
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1. Using the [[hook]] special remote to tell git-annex what commands
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to run to store and retrieve data. This is the easiest way, and
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is great for prototyping.
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2. Writing it in Haskell and adding it to git-annex.
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3. Writing a program in any language you like that speaks the
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[[design/external_special_remote_protocol]].
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The rest of this page concentrates on writing new external special remotes.
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It's not hard!
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* All you need is to make a program with a name like `git-annex-remote-$bar`.
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* Install it in PATH.
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* When the user runs `git annex initremote foo type=external externaltype=$bar`,
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it will use your program.
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* See [[design/external_special_remote_protocol]] for what the program
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needs to do. There's an example at the end of this page.
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* If things don't seem to work, pass `--debug` and you'll see, amoung other
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things, a transcript of git-annex's communication with your program.
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* If you build a new special remote, please add it to the list
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of [[special_remotes]].
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## libraries
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For Python, there is a [library](https://github.com/Lykos153/AnnexRemote)
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that takes care of all the protocol details.
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## examples
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Here's an example of using an external special remote to add torrent
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support to git-annex: [[external/git-annex-remote-torrent]]
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Here's a simple shell script example, which can easily be adapted
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to run whatever commands you need. Or better, re-written in some better
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language of your choice.
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[[!inline pages="special_remotes/external/example.sh" feeds=no]]
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