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| -rw-r--r-- | doc/todo/link_file_to_remote_repo_feature.mdwn | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/doc/todo/link_file_to_remote_repo_feature.mdwn b/doc/todo/link_file_to_remote_repo_feature.mdwn new file mode 100644 index 000000000..4bbd2b1a8 --- /dev/null +++ b/doc/todo/link_file_to_remote_repo_feature.mdwn @@ -0,0 +1,48 @@ +I have two repos, using SHA1 backend and both using git. +The first one is a laptop, the second one is a usb drive. + +When I drop a file on the laptop repo, the file is not available on that repo until I run *git annex get* +But when the usb drive is plugged in the file is actually available. + +How about adding a feature to link some/all files to the remote repo? + +e.g. +We have *railscasts/196-nested-model-form-part-1.mp4* file added to git, and only available on the usb drive: + + $ git annex whereis 196-nested-model-form-part-1.mp4 + whereis 196-nested-model-form-part-1.mp4 (1 copy) + a7b7d7a4-2a8a-11e1-aebc-d3c589296e81 -- origin (Portable usb drive) + +I can see the link with: + + $ cd railscasts + $ ls -ls 196* + 8 lrwxr-xr-x 1 framallo staff 193 Dec 20 05:49 196-nested-model-form-part-1.mp4 -> ../.git/annex/objects/Wz/6P/SHA256-s16898930--43679c67cd968243f58f8f7fb30690b5f3f067574e318d609a01613a2a14351e/SHA256-s16898930--43679c67cd968243f58f8f7fb30690b5f3f067574e318d609a01613a2a14351e + +I save this in a variable just to make the example more clear: + + ID=".git/annex/objects/Wz/6P/SHA256-s16898930--43679c67cd968243f58f8f7fb30690b5f3f067574e318d609a01613a2a14351e/SHA256-s16898930--43679c67cd968243f58f8f7fb30690b5f3f067574e318d609a01613a2a14351e" + +The file doesn't exist on the local repo: + + $ ls ../$ID + ls: ../$ID: No such file or directory + +however I can create a link to access that file on the remote repo. +First I create a needed dir: + + $ mkdir ../.git/annex/objects/Wz/6P/SHA256-s16898930--43679c67cd968243f58f8f7fb30690b5f3f067574e318d609a01613a2a14351e/ + +Then I link to the remote file: + + $ ln -s /mnt/usb_drive/repo_folder/$ID ../$ID + +now I can open the file in the laptop repo. + + +I think it could be easy to implement. Maybe It's a naive approach, but looks apealing. +Checking if it's a real file or a link shouldn't impact on performance. +The limitation is that it would work only with remote repos on local dirs + +Also allows you to have one directory structure like AFS or other distributed FS. If the file is not local I go to the remote server. +Which is great for apps like Picasa, Itunes, and friends that depends on the file location. |