ardent

An opinionated code formatter for NSIS scripts

Description

This is a Rust implementation of dent, a NodeJS-based formatting tool for NSIS scripts.

It aims to be fully compatible while making distribution easier for people outside the NodeJS ecosystem.

Installation

Cargo

cargo install ardent

Scoop

scoop bucket add nsis https://github.com/NSIS-Dev/scoop-nsis
scoop install nsis/ardent

Homebrew

brew install idleberg/asahi/ardent

Nix

nix profile install github:idleberg/ardent

Source

git clone https://github.com/idleberg/ardent.git
cd ardent
cargo build --release

The binary is at target/release/ardent.

CLI Usage

ardent [OPTIONS] [COMMAND]

Commands:
  format  Format NSIS scripts
  check   Check if NSIS scripts are formatted correctly

Options:
  -D, --debug    Print debug messages
  -h, --help     Print help
  -V, --version  Print version

Format

Formats one or more .nsi / .nsh files.

# Print formatted output to stdout
ardent format installer.nsi

# Edit files in-place
ardent format --write src/**/*.nsi

See ardent format --help for available options.

Check

Checks whether files are already formatted.

# Check only (reports drift)
ardent check src/**/*.nsi

# Check and auto-fix (still exits 1 if drift was found)
ardent check --write src/**/*.nsi

See ardent check --help for available options.

Library Usage

Formatting

use ardent::{FormatterOptions, EndOfLine, Formatter};

let formatter = Formatter::new(FormatterOptions {
    end_of_line: Some(EndOfLine::Lf),
    use_tabs: true,
    indent_size: 2,
    trim_empty_lines: true,
    print_width: 120,
}).expect("valid options");

let input = r#"section "My Section"
detailprint "Hello"
sectionend
"#;

let output = formatter.format(input).expect("valid NSIS");
assert_eq!(output, "Section \"My Section\"\n\tDetailPrint \"Hello\"\nSectionEnd\n");

Checking

Returns None if the input is already formatted, or Some(formatted) if it needs changes.

use ardent::{FormatterOptions, Formatter};

let formatter = Formatter::new(FormatterOptions::default()).unwrap();

match formatter.check(input).unwrap() {
    None => println!("Already formatted"),
    Some(formatted) => println!("Needs formatting"),
}

Options

Field	Type	Default	Description
`end_of_line`	`Option<EndOfLine>`	`None` (auto-detect)	Force CRLF or LF line endings
`indent_size`	`usize`	`2`	Spaces per indent level (ignored when using tabs)
`print_width`	`usize`	`120`	Maximum line width before wrapping with `\` continuations (0 disables)
`single_quote`	`bool`	`false`	Prefer single quotes instead of double quotes
`trim_empty_lines`	`bool`	`true`	Collapse consecutive blank lines and strip leading/trailing blanks
`use_tabs`	`bool`	`true`	Indent with tabs instead of spaces

[!TIP] While many follow their personal preferences in the tabs vs spaces discussion, accessibility is probably the strongest argument to prefer tabs. See this discussion for more context.

Benchmark

Benchmark 1: ardent check Examples/bigtest.nsi
  Time (mean ± σ):       1.7 ms ±   0.3 ms    [User: 1.3 ms, System: 0.4 ms]
  Range (min … max):     1.3 ms …   4.8 ms    415 runs

Benchmark 2: dent check Examples/bigtest.nsi
  Time (mean ± σ):     101.9 ms ±   4.6 ms    [User: 95.5 ms, System: 11.4 ms]
  Range (min … max):    97.9 ms … 124.4 ms    29 runs

Summary
  ardent check Examples/bigtest.nsi ran
   58.70 ± 10.67 times faster than dent check Examples/bigtest.nsi

setup-ardent - GitHub Action to install ardent
ardent.nvim - Neovim formatting plugin

License

This work is licensed under The MIT License.

ardent 0.9.5