docspec-cli 1.0.2

Command-line interface for DocSpec document conversion
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use std::path::PathBuf;

use clap::{Parser, ValueEnum};

/// `DocSpec`: streaming document conversion.
#[derive(Parser, Debug)]
#[command(name = "docspec")]
#[command(version = "0.1.0")]
#[command(about = "Convert documents between formats using streaming event pipeline", long_about = None)]
pub struct Cli {
    /// When to use colors.
    #[arg(long, value_name = "WHEN", default_value = "auto")]
    pub color: ColorChoice,

    /// Input format (auto-detected from extension if omitted).
    #[arg(short, long)]
    pub from: Option<Format>,

    /// Input file (use `-` or omit for stdin).
    #[arg(value_name = "FILE")]
    pub input: Option<PathBuf>,

    /// Output file (stdout if omitted).
    #[arg(short, long, value_name = "FILE")]
    pub output: Option<PathBuf>,

    /// Output format (auto-detected from extension if omitted).
    #[arg(short, long)]
    pub to: Option<Format>,
}

/// Document format.
#[derive(Clone, Copy, Debug, ValueEnum)]
pub enum Format {
    /// `BlockNote` JSON format.
    #[value(name = "blocknote")]
    Blocknote,

    /// Markdown format.
    #[value(name = "markdown")]
    Markdown,
}

/// Color output choice.
#[derive(Clone, Copy, Debug, ValueEnum)]
pub enum ColorChoice {
    /// Always use colors.
    #[value(name = "always")]
    Always,

    /// Automatically detect color support.
    #[value(name = "auto")]
    Auto,

    /// Never use colors.
    #[value(name = "never")]
    Never,
}