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Implement ModTime interface in service streams (#1670 )

## Description

Add ModTime to Exchange, OneDrive and SharePoint list stream items. This enables kopia-assisted incrementals for those items. Backup details still contains a complete set of information for all items in the backup regardless of if kopia uploaded data for the item or not.

Kopia-assisted incrementals does come with some caveats though. If changes are made to an item in M365 and that change does not cause the modified time reported by M365 to update, then the change will not be backed up. Currently, only marking an email as read/unread is known to hit this edge case.

This patch does not lazily fetch data from Graph API. This means that kopia may upload less data, but the same amount of data will still be pulled from Graph

## Type of change

- [x] 🌻 Feature
- [ ] 🐛 Bugfix
- [ ] 🗺️ Documentation
- [ ] 🤖 Test
- [ ] 💻 CI/Deployment
- [ ] 🐹 Trivial/Minor

## Issue(s)

* closes #622 

## Test Plan

<!-- How will this be tested prior to merging.-->
- [x] 💪 Manual
- [x] ⚡ Unit test
- [ ] 💚 E2E

2022-12-05 18:01:38 +00:00

.github

Fix website test publish from main (#1683 )

2022-12-05 08:20:19 +00:00

build

Small fix in build/Dockerfile (#1494 )

2022-11-10 09:38:07 +00:00

design

migrate naming of azure env vars (#1176 )

2022-10-17 20:47:04 +00:00

docker

quick fix on image/user pair for images (#961 )

2022-09-27 01:21:26 +00:00

src

Implement ModTime interface in service streams (#1670 )

2022-12-05 18:01:38 +00:00

website

New Blog Post: Owning Your Identity and Data For The Price of One ☕️/Month (#1680 )

2022-12-04 21:46:20 -08:00

.dockerignore

introduce docker container production (#660 )

2022-09-01 15:06:57 +00:00

.gitattributes

Add vector images for "Why Everyone Loves Corso" (#781 )

2022-09-06 22:15:15 +00:00

.gitignore

replace golang purge script with powershell script (#1364 )

2022-10-31 22:40:42 +00:00

CHANGELOG.md

Update headers in changelog after release (#1516 )

2022-11-15 13:41:07 +05:30

CODE_OF_CONDUCT.md

Update README and upgrade COC (#1068 )

2022-10-06 11:10:12 +00:00

LICENSE

Remove some license boilerplate (#1071 )

2022-10-06 16:43:52 +00:00

README.md

Fix README links to the website (#1597 )

2022-11-23 20:04:51 +00:00

README.md

Corso

Corso is the first open-source tool that aims to assist IT admins with the critical task of protecting their Microsoft 365 data. It provides a reliable, secure, and efficient data protection engine. Admins decide where to store the backup data and have the flexibility to perform backups of their desired service through an intuitive interface. As Corso evolves, it can become a great building block for more complex data protection workflows.

Corso is currently in ALPHA and should NOT be used in production.

Corso supports M365 Exchange and OneDrive with SharePoint and Teams support in active development. Coverage for more services, possibly beyond M365, will expand based on the interest and needs of the community.

Getting Started

See the Corso Documentation for more information.

Building Corso

To learn more about working with the project source core and building Corso, see the Developer section of the Corso Documentation.

Roadmap

You can learn more about the Corso roadmap and how to interpret it here.

If you have feature requests, please file a GitHub issue and attach the enhancement label to the issue.

Contribution Guidelines

Code of Conduct

It's important that our community is inclusive and respectful of everyone. We ask that all Corso users and contributors take a few minutes to review our Code of Conduct.

License

Corso is licensed under the Apache License, Version 2.0. See LICENSE for the full license text.