summaryrefslogtreecommitdiff
path: root/doc
Commit message (Collapse)AuthorAge
* document new stuff for external special remotesGravatar Joey Hess2017-09-07
| | | | | | | Got rid of RENAMEEXPORT-UNSUPPORTED, no reason not to use RENAMEEXPORT-FAILURE for that. This commit was supported by the NSF-funded DataLad project.
* fix consistency bug reading from export databaseGravatar Joey Hess2017-09-06
| | | | | | | | | | | | | | | | | | | The export database has writes made to it and then expects to read back the same data immediately. But, the way that Database.Handle does writes, in order to support multiple writers, makes that not work, due to caching issues. This resulted in export re-uploading files it had already successfully renamed into place. Fixed by allowing databases to be opened in MultiWriter or SingleWriter mode. The export database only needs to support a single writer; it does not make sense for multiple exports to run at the same time to the same special remote. All other databases still use MultiWriter mode. And by inspection, nothing else in git-annex seems to be relying on being able to immediately query for changes that were just written to the database. This commit was supported by the NSF-funded DataLad project.
* Merge branch 'master' into exportGravatar Joey Hess2017-09-06
|\
* | todoGravatar Joey Hess2017-09-06
| |
* | export file renamingGravatar Joey Hess2017-09-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is seriously super hairy. It has to handle interrupted exports, which may be resumed with the same or a different tree. It also has to recover from export conflicts, which could cause the wrong content to be renamed to a file. I think this works, or is close to working. See the update to the design for how it works. This is definitely not optimal, in that it does more renames than are necessary. It would probably be worth finding the keys that are really renamed and only renaming those. But let's get the "simple" approach to work first.. This commit was supported by the NSF-funded DataLad project.
* | record incomplete exports in export.logGravatar Joey Hess2017-09-06
| | | | | | | | | | | | | | | | | | | | Not yet used, but essential for resuming cleanly. Note that, in normmal operation, only one commit is made to export.log during an export; the incomplete version only gets to the journal and is then overwritten. This commit was supported by the NSF-funded DataLad project.
* | thoughts on handling renames efficientlyGravatar Joey Hess2017-09-06
| | | | | | | | | | | | This gets complicated, but I think this design will work! This commit was supported by the NSF-funded DataLad project.
| * Merge branch 'master' of ssh://git-annex.branchable.comGravatar Joey Hess2017-09-06
| |\
| * | move line break to fix broken linkGravatar Edward Betts2017-09-06
| | |
| * | updateGravatar Joey Hess2017-09-06
| | |
| | * (no commit message)Gravatar karel-de-macil2017-09-06
| |/
| * Added datalad "super-dataset".Gravatar yarikoptic2017-09-05
| |
| * removedGravatar EskildHustvedt2017-09-05
| |
| * Added a comment: Partial exportsGravatar EskildHustvedt2017-09-05
| |
| * Added a comment: Partial exportsGravatar EskildHustvedt2017-09-05
| |
| * (no commit message)Gravatar eacousineau2017-09-05
| |
| * Merge branch 'master' of ssh://git-annex.branchable.comGravatar Joey Hess2017-09-04
| |\
| * | devblogGravatar Joey Hess2017-09-04
| | |
* | | git annex get from exportsGravatar Joey Hess2017-09-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Straightforward enough, except for the needed belt-and-suspenders sanity checks to avoid foot shooting due to exports not being key/value stores. * Even when annex.verify=false, always verify from exports. * Only get files from exports that use a backend that supports checksum verification. * Never trust exports, even if the user says to, because then `git annex drop` would drop content if the export seemed to contain a copy. This commit was supported by the NSF-funded DataLad project.
* | | use export db to correctly handle duplicate filesGravatar Joey Hess2017-09-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Removed uncorrect UniqueKey key in db schema; a key can appear multiple times with different files. The database has to be flushed after each removal. But when adding files to the export, lots of changes are able to be queued up w/o flushing. So it's still fairly efficient. If large removals of files from exports are too slow, an alternative would be to make two passes over the diff, one pass queueing deletions from the database, then a flush and the a second pass updating the location log. But that would use more memory, and need to look up exportKey twice per removed file, so I've avoided such optimisation yet. This commit was supported by the NSF-funded DataLad project.
* | | implement exporttree=yes configurationGravatar Joey Hess2017-09-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Only export to remotes that were initialized to support it. * Prevent storing key/value on export remotes. * Prevent enabling exporttree=yes and encryption in the same remote. SetupStage Enable was changed to take the old RemoteConfig. This allowed only setting exporttree when initially setting up a remote, and not configuring it later after stuff might already be stored in the remote. Went with =yes rather than =true for consistency with other parts of git-annex. Changed docs accordingly. This commit was supported by the NSF-funded DataLad project.
| | * Added a commentGravatar vgp2017-09-01
| |/
* | refactor ExportActionsGravatar Joey Hess2017-09-01
| | | | | | | | | | | | | | | | This will allow disabling exports for remotes that are not configured to allow them. Also, exportSupported will be useful for the external special remote to probe. This commit was supported by the NSF-funded DataLad project
| * devblogGravatar Joey Hess2017-08-31
| |
* | graft exported tree into git-annex branchGravatar Joey Hess2017-08-31
| | | | | | | | | | | | | | | | | | | | | | So it will be available later and elsewhere, even after GC. I first though to use git update-index to do this, but feeding it a line with a tree object seems to always cause it to generate a git subtree merge. So, fell back to using the Git.Tree interface to maniupulate the trees, and not involving the git-annex branch index file at all. This commit was sponsored by Andreas Karlsson.
* | implement export.log and resolve export conflictsGravatar Joey Hess2017-08-31
| | | | | | | | | | | | Incremental export updates work now too. This commit was sponsored by Anthony DeRobertis on Patreon.
* | make storeExport atomicGravatar Joey Hess2017-08-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This avoids needing to deal with the complexity of partially transferred files in the export. We'd not be able to resume uploading to such a file anyway, so just avoid them. The implementation in Remote.Directory is not completely ideal, because it could leave the temp file hanging around in the export directory. This only happens if it's killed with -9, or there's a power failure; normally viaTmp cleans up after itself, even when interrupted. I could not see a better way to do it though, since the export directory might be the root of a filesystem. Also some design thoughts on resuming, which depend on storeExport being atomic. This commit was sponsored by Fernando Jimenez on Partreon.
* | resuming exportsGravatar Joey Hess2017-08-31
| | | | | | | | | | | | | | | | | | | | | | | | | | Make a pass over the whole exported tree, and upload anything that has not yet reached the export. Update location log when exporting. Note that the synthesized keys for non-annexed files are stored in the location log too. Some cases involving files in the tree with the same content are not handled correctly yet. This commit was sponsored by Boyd Stephen Smith Jr. on Patreon.
* | Merge branch 'master' into exportGravatar Joey Hess2017-08-31
|\|
| * a few tweaks to the designGravatar Joey Hess2017-08-30
| |
| * initial bug reportGravatar yarikoptic2017-08-30
| |
| * Added a commentGravatar vgp2017-08-30
| |
| * Merge branch 'master' of ssh://git-annex.branchable.comGravatar Joey Hess2017-08-29
| |\
| * | devblogGravatar Joey Hess2017-08-29
| | |
* | | initial export commandGravatar Joey Hess2017-08-29
| | | | | | | | | | | | | | | | | | Very basic operation works, but of course this is only the beginning. This commit was sponsored by Nick Daly on Patreon.
* | | documentation for exportGravatar Joey Hess2017-08-29
|/ / | | | | | | This commit was sponsored by Ole-Morten Duesund on Patreon.
| * Added a commentGravatar supernaught2017-08-28
|/
* simplifyGravatar Joey Hess2017-08-28
| | | | Key is needed to use in reply
* update proposed external special remote protocolGravatar Joey Hess2017-08-28
|
* fix linkGravatar Joey Hess2017-08-28
|
* formattingGravatar Joey Hess2017-08-28
|
* typoGravatar Joey Hess2017-08-28
|
* commentGravatar Joey Hess2017-08-28
|
* responseGravatar Joey Hess2017-08-28
|
* responseGravatar Joey Hess2017-08-28
|
* respond and closeGravatar Joey Hess2017-08-28
|
* close bug filed about git-annex from 2014Gravatar Joey Hess2017-08-28
|
* responseGravatar Joey Hess2017-08-28
|
* init: Display an additional message when it detects a filesystem that allows ↵Gravatar Joey Hess2017-08-28
| | | | writing to files whose write bit is not set.
* responseGravatar Joey Hess2017-08-28
|