95 lines
4.2 KiB
Markdown
95 lines
4.2 KiB
Markdown
# screencap-bot
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this is a cohost bot that periodically posts randomly-chosen
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screencaps or audio clips from a configured collection of tv
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series/movies/podcasts/etc.
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## installation
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you can build screencap-bot with cargo by cloning this repo, or
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install it as a Nix Flake. it needs the ffmpeg library, and also
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needs the ffmpeg binary in its `PATH` when it's running. the default
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package provided by the flake is a wrapped version that adds ffmpeg to
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its `PATH` for you.
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## configuration
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screencap-bot is configured with the following environment variables,
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which can also be put in a `.env` file in the program's working
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directory:
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- `SCREENCAP_BOT_CAPTURE_IMAGES`: whether to take screenshots (default: `true`)
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- `SCREENCAP_BOT_CAPTURE_AUDIO_DURATION`: length of audio clips to capture, in seconds (default: unset, no audio capture)
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- `SCREENCAP_BOT_SHOWS_FILE`: path of a YAML file specifying what shows to take captures from (default: `./shows.yaml`)
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- `SCREENCAP_BOT_GLOBAL_TAGS`: tags to put on every post the bot makes, as a comma-separated list (eg `bot account,automated post,The Cohost Bot Feed`) (default: none)
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- `SCREENCAP_BOT_POST_INTERVAL`: the interval between posts, in
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seconds (default: 0, post a single capture and then exit)
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- `SCREENCAP_BOT_COHOST_EMAIL`: the email address the bot should use to log into cohost
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- `SCREENCAP_BOT_COHOST_PASSWORD`: the password the bot should use to log into cohost
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- `SCREENCAP_BOT_COHOST_PAGE`: the cohost page the bot should post from
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- `SCREENCAP_BOT_COHOST_DRAFT`: whether to create cohost posts as
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drafts, eg for testing (default: `false`)
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- `SCREENCAP_BOT_COHOST_CW`: whether to CW posts with the episode
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number (default: `true` if taking screenshots, `false` if not)
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- `SCREENCAP_BOT_18PLUS`: whether posts should be flagged as
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containing 18+ content (default: `false`). this can be overridden
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for individual shows, see below.
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- `RUST_LOG`: log levels, for the app as a whole and/or for specific
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submodules/libraries. See
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[`env_logger`](https://docs.rs/env_logger/latest/env_logger/)'s
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documentation for details.
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### shows
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the list of shows the bot should take screencaps from is read from a YAML file with the following structure:
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```yaml
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Char's Counterattack:
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path: /home/user/media/Gundam_CCA.mkv
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weight: 2.5
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Gundam 0079:
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path: /home/user/media/Mobile Suit Gundam 0079/
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tags:
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- MSG 0079
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- "0079"
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- First Gundam
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MS IGLOO:
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path: /home/user/media/Gundam Igloo
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parts:
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1: The Hidden One Year War
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2: Apocalypse 0079
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Gundam 0069:
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path: /home/user/media/Gundam 0069
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18+: true
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Friends at the Table:
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path: /home/user/media/Friends at the Table
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custom_episodes:
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prefix: "Friends at the Table: "
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regex: '^\d{4}-\d{2}-\d{2} - (?<episode>.*)\.mp3$'
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```
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each top-level key is a show title, which will be used in spoiler
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warnings on posts and in image alt text. each show has two keys:
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- `path`: the path of a single video file, or the path of a directory
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containing numbered video files for each episode of a series. all of
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the episodes must be directly inside the directory, the bot will not
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traverse subdirectories to find files.
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- `tags`: an optional list of tags to put on posts from this show.
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- `parts`: an optional map of season numbers to season names.
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by default, if the bot detects episodes from multiple seasons in a directory,
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it will refer to them as "season [number]" in post CWs and image alt-text.
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this is a map rather than a list, since show season numbers may be 1-indexed or 0-indexed.
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- `weight`: an optional weight for this show in the random sampling of
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shows. each show without a weight specified has a weight of `1.0`.
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- `18+`: an optional setting for whether screencaps from this show
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should be flagged as containing 18+ content. if present, this takes
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precedence over the `SCREENCAP_BOT_18PLUS` environment variable.
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- `custom_episodes`: Rather than letting the bot auto-detect episode
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numbering, you can extract episode numbers from filenames using a regex.
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+ `regex`: should match a filename, and capture the episode number
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or title in a capture group named `episode`. Files that don't
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match the regex will be ignored.
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+ `prefix`: Will be prepended to whatever is captured by the
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regex. (default: empty string)
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