| 1 | //! Command-line interface. |
| 2 | |
| 3 | use std::path::PathBuf; |
| 4 | |
| 5 | use clap::Parser; |
| 6 | |
| 7 | use crate::state::queue::SortKey; |
| 8 | use crate::state::view::FitMode; |
| 9 | |
| 10 | #[derive(Parser, Debug)] |
| 11 | #[command(name = "remage", version, about = "Keyboard-centric image viewer")] |
| 12 | pub struct Cli { |
| 13 | /// Files or directories to open [default: .] |
| 14 | pub paths: Vec<PathBuf>, |
| 15 | |
| 16 | /// Descend into directories |
| 17 | #[arg(short, long)] |
| 18 | pub recursive: bool, |
| 19 | |
| 20 | /// Start at the Nth image (1-based) |
| 21 | #[arg(short = 'n', long, value_name = "N")] |
| 22 | pub start: Option<usize>, |
| 23 | |
| 24 | /// Start in fullscreen |
| 25 | #[arg(short, long)] |
| 26 | pub fullscreen: bool, |
| 27 | |
| 28 | /// Hide the status bar |
| 29 | #[arg(short = 'b', long)] |
| 30 | pub no_bar: bool, |
| 31 | |
| 32 | /// How images fit the window |
| 33 | #[arg(short = 's', long, value_enum, value_name = "MODE")] |
| 34 | pub fit: Option<FitMode>, |
| 35 | |
| 36 | /// Fixed zoom level in percent (overrides --fit) |
| 37 | #[arg(short = 'z', long, value_name = "PCT")] |
| 38 | pub zoom: Option<f32>, |
| 39 | |
| 40 | /// Initial window size in logical pixels |
| 41 | #[arg(short = 'g', long, value_name = "WxH", value_parser = parse_geometry)] |
| 42 | pub geometry: Option<(u32, u32)>, |
| 43 | |
| 44 | /// Wayland app_id / X11 class |
| 45 | #[arg(long, value_name = "NAME", default_value = "remage")] |
| 46 | pub class: String, |
| 47 | |
| 48 | /// Sort order for directory contents |
| 49 | #[arg(long, value_enum, value_name = "KEY", default_value = "natural")] |
| 50 | pub sort: SortKey, |
| 51 | |
| 52 | /// Reverse the sort order |
| 53 | #[arg(long)] |
| 54 | pub reverse: bool, |
| 55 | |
| 56 | /// Open only the named file, not the rest of its directory |
| 57 | #[arg(long)] |
| 58 | pub no_siblings: bool, |
| 59 | } |
| 60 | |
| 61 | fn parse_geometry(s: &str) -> Result<(u32, u32), String> { |
| 62 | let (w, h) = s |
| 63 | .split_once(['x', 'X']) |
| 64 | .ok_or("expected WxH, e.g. 1280x800")?; |
| 65 | let parse = |v: &str| v.trim().parse::<u32>().ok().filter(|n| *n > 0); |
| 66 | match (parse(w), parse(h)) { |
| 67 | (Some(w), Some(h)) => Ok((w, h)), |
| 68 | _ => Err("expected positive WxH, e.g. 1280x800".into()), |
| 69 | } |
| 70 | } |
| 71 | |
| 72 | #[cfg(test)] |
| 73 | mod tests { |
| 74 | use super::*; |
| 75 | use clap::CommandFactory; |
| 76 | |
| 77 | #[test] |
| 78 | fn cli_is_consistent() { |
| 79 | Cli::command().debug_assert(); |
| 80 | } |
| 81 | |
| 82 | #[test] |
| 83 | fn geometry() { |
| 84 | assert_eq!(parse_geometry("800x600"), Ok((800, 600))); |
| 85 | assert!(parse_geometry("800").is_err()); |
| 86 | assert!(parse_geometry("0x600").is_err()); |
| 87 | } |
| 88 | } |