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https://github.com/k9withabone/autocast
Automate terminal demos
https://github.com/k9withabone/autocast
asciicast asciinema demo terminal
Last synced: about 1 month ago
JSON representation
Automate terminal demos
- Host: GitHub
- URL: https://github.com/k9withabone/autocast
- Owner: k9withabone
- License: gpl-3.0
- Created: 2023-07-20T04:56:53.000Z (about 1 year ago)
- Default Branch: main
- Last Pushed: 2024-05-22T17:17:54.000Z (4 months ago)
- Last Synced: 2024-08-06T07:18:09.838Z (about 2 months ago)
- Topics: asciicast, asciinema, demo, terminal
- Language: Rust
- Homepage: https://crates.io/crates/autocast
- Size: 637 KB
- Stars: 73
- Watchers: 2
- Forks: 4
- Open Issues: 7
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- License: LICENSE
Awesome Lists containing this project
README
# autocast
[](https://github.com/k9withabone/autocast/actions/workflows/format-clippy-test.yaml)
[](https://crates.io/crates/autocast)
[](./LICENSE)
A tool to help automate the creation of terminal demos. Automatically generate an asciicast file for use with [asciinema](https://asciinema.org/).
[](https://asciinema.org/a/597756)
Demo created with autocast, see [demo.yaml](./demo.yaml). The demo is also viewable on [asciinema](https://asciinema.org/a/597756).
## Features
- Generates asciicast files from the settings and instructions in an input YAML file.
- Fast, run time is dependent upon the run time of the shell commands, with minimal overhead.
- Use bash, python, or a custom shell.
- Customize the output's prompt and secondary prompt, separate from the shell's.
- Use hidden commands for automated setup and cleanup.
## Installation
- Download a prebuilt binary from [releases](https://github.com/k9withabone/autocast/releases).
- Use [cargo-binstall](https://github.com/cargo-bins/cargo-binstall) to get a prebuilt binary with `cargo binstall autocast`.
- Build and install with `cargo install autocast`.
## Usage
### CLI
```
$ autocast -h
Automate terminal demos
Usage: autocast [OPTIONS]
Arguments:
Input file to create the asciicast file with
Output asciicast file
Options:
--width
Terminal width
--height
Terminal height
-t, --title
Title of the asciicast
--shell
Shell to use for running commands [default: bash] [possible values: bash, python]
-e, --environment
Environment variables to use in the shell process
--environment-capture
Environment variables to capture [default: TERM] [aliases: env-cap]
-d, --type-speed
Default time between key presses when writing commands [default: 100ms] [aliases: delay]
--prompt
The shell prompt to use in the asciicast output [default: "$ "]
--secondary-prompt
The shell secondary prompt to use in the asciicast output [default: "> "]
--timeout
Maximum amount of time to let a shell command run before returning with an error [default: 30s]
--overwrite
Overwrite output file if it already exists
-h, --help
Print help (see more with '--help')
-V, --version
Print version
```
Use `autocast --help` to see a more in-depth explanation of the CLI arguments. Also see their corresponding settings in [full-example.yaml](./full-example.yaml).
Non-default CLI arguments will override settings specified in the input YAML file.
### Input YAML File
For examples, see [example.yaml](./example.yaml) and [demo.yaml](./demo.yaml). For an in-depth explanation of all configuration values, see [full-example.yaml](./full-example.yaml).
Instruction Kinds:
- Command
- Normal shell command or control code.
- Can be a single line or split across multiple lines.
- Waits until the shell prompt is displayed to ensure the command has completed.
- Optionally hidden from asciicast output.
- Interactive
- Starts an interactive shell command like an editor or TUI app.
- Requires a list of keys that are used to control the started command.
- Keys are input in real time (including any waits) while output is continuously captured.
- After all the keys are fed to the command, it must exit, and the shell returned to the prompt.
- Like the normal shell command, it waits until the shell prompt is displayed before running the next instruction.
- Wait
- Adds time between the output of the last instruction and the start of the next.
- This time is only added in the asciicast output and does not increase the run time of autocast.
- Marker
- Adds a marker to the asciicast output.
- Markers are chapters that show in the asciinema web player.
- Clear
- Adds output events to the asciicast output that will clear the terminal.
## Contribution
Contributions/suggestions are very welcome and appreciated!
Feel free to create an [issue](https://github.com/k9withabone/autocast/issues), [discussion](https://github.com/k9withabone/autocast/discussions), or [pull request](https://github.com/k9withabone/autocast/pulls).
Especially in need of default configurations for other shells (zsh, fish, etc.) as I have no experience with shells other than bash.
## Inspiration
- [asciinema](https://asciinema.org/)
- [VHS](https://github.com/charmbracelet/vhs)
- [asciinema_automation](https://github.com/PierreMarchand20/asciinema_automation)
- [expectrl](https://crates.io/crates/expectrl)
- Used as a dependency, but some of the top level functionality was reimplemented (specifically [`Session`](https://docs.rs/expectrl/latest/expectrl/session/struct.Session.html) and [`ReplSession`](https://docs.rs/expectrl/latest/expectrl/repl/struct.ReplSession.html) in `ShellSession`) for autocast's needs.
## License
Autocast is licensed under the [GNU General Public License v3.0](https://www.gnu.org/licenses/gpl-3.0.en.html) or later, see the [license](./LICENSE) file for details.