STU

S3 Terminal UI

About

STU is the TUI explorer application for Amazon S3 (AWS S3) written in Rust using ratatui.

Installation

Cargo

$ cargo install --locked stu

Homebrew (macOS)

$ brew install lusingander/tap/stu

AUR (Arch Linux)

$ paru -S stu

Binary

You can download binaries from releases.

Usage

After installation, run the following command:

$ stu

Basically, you can use it in the same way as the AWS CLI.

In other words, if the default profile settings exist or the environment variables are set, you do not need to specify any options.

Options

STU - S3 Terminal UI

Usage: stu [OPTIONS]

Options:
  -r, --region <REGION>     AWS region
  -e, --endpoint-url <URL>  AWS endpoint url
  -p, --profile <NAME>      AWS profile name
  -b, --bucket <NAME>       Target bucket name
      --debug               Output debug logs
  -h, --help                Print help
  -V, --version             Print version

Here are some examples of how to run with options:

# Connect by specifying the profile
$ stu --profile foo-profile

# Show only the specified bucket objects
$ stu --bucket bar-bucket

# Connect to localstack, minio, etc.
$ stu --endpoint-url http://localhost:12345

# Connect by specifying environment variables
$ AWS_ACCESS_KEY_ID=abc AWS_SECRET_ACCESS_KEY=xyz stu

Keybindings

The basic key bindings are as follows:

Key	Description
Ctrl-C	Quit app
Esc	Quit app / Close dialog
Enter	Confirm / Open selected item
Backspace	Go back to previous / Close dialog
j/k	Select item / Scroll
?	Show help

Detailed operations on each view can be displayed by pressing ? key.

Config

Config is loaded from $STU_ROOT_DIR/config.toml.

• If STU_ROOT_DIR environment variable is not set, ~/.stu is used by default.
• If the file does not exist, it will be created automatically at startup.
• If no value is set, the default value will be set.

Config file format

The values set in this example are the default values.

# The directory to save the downloaded objects.
# type: string
download_dir = "$STU_ROOT_DIR/download"
# The default region to use if the region cannot be obtained from the command line options or AWS settings.
# type: string
default_region = "us-east-1"

[ui.object_list]
# The date format of a last modified in the object list.
# The format must be specified in strftime format.
# https://docs.rs/chrono/latest/chrono/format/strftime/index.html
# type: string
date_format = "%Y-%m-%d %H:%M:%S"
# The width of a last modified in the object list.
# It is recommended to set this when setting date_format.
# type: u16
date_width = 19

[ui.object_detail]
# The date format of a last modified in the object detail.
# The format must be specified in strftime format.
# https://docs.rs/chrono/latest/chrono/format/strftime/index.html
# type: string
date_format = "%Y-%m-%d %H:%M:%S"

[preview]
# Whether syntax highlighting is enabled in the object preview.
# type: bool
highlight = false
# Whether image file preview is enabled in the object preview.
# type: bool
image = false

Features / Screenshots

Bucket list

• Show list of buckets
  • filter/sort items

Object list

• Show list of objects in a hierarchy
  • filter/sort items

Object detail

• Show object details
• Show object versions
• Download object
  • Download the specified version
• Preview object
  • Preview the specified version
• Copy resource name to clipboard

Object preview

• syntax highlighting (by syntect)
  • It must be enabled in the config
• image preview (by ratatui-image)
  • It must be enabled in the config

Troubleshooting

• If you cannot connect to AWS S3, first check whether you can connect using the AWS CLI with the same settings.
• By running with the --debug flag, logs will be output to $STU_ROOT_DIR/debug.log.
  • Currently, application events and AWS SDK logs are output.
  • Pressing F12 while the application is running will dump the application state to the log.
• When reporting a problem, please include the information like the following.
  • Application version
  • Operating system and version
  • Terminal you are using
  • Steps to reproduce the issue
  • Relevant log files or error messages

Contributing

To get started with contributing, please review CONTRIBUTING.md.

Contributions that do not follow these guidelines may not be accepted.

License

MIT