# mrvc (max room version checker)

mrvc is a tool for determining how many members support which maximum room version for a given Matrix room.

Its output looks something like this:

```
Room:
  !amwlFMejXQcoCxNYHH:matrix.org -> 1131
Given Aliases:
  #element-x-ios:matrix.org
Version Support:
  unkown -> 103
    ...
    unknown -> 101
      unknown -> 101
  v10 -> 2
    Synapse -> 2
      1.76.0 -> 1
      1.85.2 -> 1
  v11 -> 87
    Conduwuit -> 1
      0.4.6 (8f7ade4) -> 1
    Synapse -> 68
      ...
      1.134.0 -> 22
      1.135.0+pro.4 -> 3
      1.135.0 -> 17
    Tuwunel -> 9
      1.2.0 -> 1
      1.3.0 -> 8
    conduwuit -> 2
      0.5.0 (3e57b7d) -> 1
      0.5.0 (bec19df-dirty) -> 1
    continuwuity -> 7
      ...
      0.5.0-rc.7 (583cb92) -> 1
      0.5.0-rc.7 (e4a43b1) -> 1
  v12 -> 939
    Conduit -> 2
      0.10.8 -> 2
    Synapse -> 937
      1.135.2 -> 34
      1.136.0 -> 87
      1.136.0 (b=HEAD,t=v1.136.0,e8c6cb3d9e) -> 1
      1.136.0 (b=matrix-org-hotfixes-priv,a4db588e87) -> 815
```

## Features

- Show member count broken down by maximum room version, Matrix server implementation and version and optionally homeserver name.
- Check multiple rooms at once by setting the `--room` flag multiple times.

## Usage

Get a version of mrvc using either `go build`, nix or the Containerfile.  
Furthermore a Matrix account with its access token is required.
One way to obtain the access token is by going into Element -> Settings -> "Help & About" and at the bottom under "Advanced" the access token can be copied.

Then just run:

```
mrvc --user-id @myuser:myhomeserver.tld --token token --room '#name:homeserver.tld'
```

Note that each option is also available via an environment variable, which is especially useful for providing the access token to mrvc.

For a list of all the available options run:

```
mrvc -h
```

## License

mrvc is licensed under the [MIT License](./License).