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# continuity
[](https://pkg.go.dev/github.com/containerd/continuity)
[](https://github.com/containerd/continuity/actions?query=workflow%3AContinuity+branch%3Amain)
A transport-agnostic, filesystem metadata manifest system
This project is a staging area for experiments in providing transport agnostic
metadata storage.
See [opencontainers/runtime-spec#11](https://github.com/opencontainers/runtime-spec/issues/11)
for more details.
## Manifest Format
A continuity manifest encodes filesystem metadata in Protocol Buffers.
Refer to [proto/manifest.proto](proto/manifest.proto) for more details.
## Usage
Build:
```console
$ make
```
Create a manifest (of this repo itself):
```console
$ ./bin/continuity build . > /tmp/a.pb
```
Dump a manifest:
```console
$ ./bin/continuity ls /tmp/a.pb
...
-rw-rw-r-- 270 B /.gitignore
-rw-rw-r-- 88 B /.mailmap
-rw-rw-r-- 187 B /.travis.yml
-rw-rw-r-- 359 B /AUTHORS
-rw-rw-r-- 11 kB /LICENSE
-rw-rw-r-- 1.5 kB /Makefile
...
-rw-rw-r-- 986 B /testutil_test.go
drwxrwxr-x 0 B /version
-rw-rw-r-- 478 B /version/version.go
```
Verify a manifest:
```console
$ ./bin/continuity verify . /tmp/a.pb
```
Break the directory and restore using the manifest:
```console
$ chmod 777 Makefile
$ ./bin/continuity verify . /tmp/a.pb
2017/06/23 08:00:34 error verifying manifest: resource "/Makefile" has incorrect mode: -rwxrwxrwx != -rw-rw-r--
$ ./bin/continuity apply . /tmp/a.pb
$ stat -c %a Makefile
664
$ ./bin/continuity verify . /tmp/a.pb
```
## Platforms
continuity primarily targets Linux. Continuity may compile for and work on
other operating systems, but those platforms are not tested.
## Contribution Guide
### Building Proto Package
If you change the proto file you will need to rebuild the generated Go with `go generate`.
```console
$ go generate ./proto
```
## Project details
continuity is a containerd sub-project, licensed under the [Apache 2.0 license](./LICENSE).
As a containerd sub-project, you will find the:
* [Project governance](https://github.com/containerd/project/blob/main/GOVERNANCE.md),
* [Maintainers](https://github.com/containerd/project/blob/main/MAINTAINERS),
* and [Contributing guidelines](https://github.com/containerd/project/blob/main/CONTRIBUTING.md)
information in our [`containerd/project`](https://github.com/containerd/project) repository.
|
