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//! Handles cli and configuration options
use crate::cli::Command;
use serde::{Deserialize, Serialize};
use std::path::PathBuf;
use std::str::FromStr;
use structopt::StructOpt;
use zellij_tile::data::InputMode;
#[derive(Copy, Clone, Debug, PartialEq, Deserialize, Serialize)]
pub enum OnForceClose {
#[serde(alias = "quit")]
Quit,
#[serde(alias = "detach")]
Detach,
}
impl Default for OnForceClose {
fn default() -> Self {
Self::Detach
}
}
impl FromStr for OnForceClose {
type Err = Box<dyn std::error::Error>;
fn from_str(s: &str) -> Result<Self, Self::Err> {
match s {
"quit" => Ok(Self::Quit),
"detach" => Ok(Self::Detach),
e => Err(e.to_string().into()),
}
}
}
#[derive(Clone, Default, Debug, PartialEq, Deserialize, Serialize, StructOpt)]
/// Options that can be set either through the config file,
/// or cli flags - cli flags should take precedence over the config file
/// TODO: In order to correctly parse boolean flags, this is currently split
/// into Options and CliOptions, this could be a good canditate for a macro
pub struct Options {
/// Allow plugins to use a more simplified layout
/// that is compatible with more fonts (true or false)
#[structopt(long)]
#[serde(default)]
pub simplified_ui: Option<bool>,
/// Set the default theme
#[structopt(long)]
pub theme: Option<String>,
/// Set the default mode
#[structopt(long)]
pub default_mode: Option<InputMode>,
/// Set the default shell
#[structopt(long, parse(from_os_str))]
pub default_shell: Option<PathBuf>,
/// Set the layout_dir, defaults to
/// subdirectory of config dir
#[structopt(long, parse(from_os_str))]
pub layout_dir: Option<PathBuf>,
#[structopt(long)]
#[serde(default)]
/// Set the handling of mouse events (true or false)
/// Can be temporarily bypassed by the [SHIFT] key
pub mouse_mode: Option<bool>,
#[structopt(long)]
#[serde(default)]
/// Set display of the pane frames (true or false)
pub pane_frames: Option<bool>,
#[structopt(long)]
#[serde(default)]
/// Mirror session when multiple users are connected (true or false)
pub mirror_session: Option<bool>,
/// Set behaviour on force close (quit or detach)
#[structopt(long)]
pub on_force_close: Option<OnForceClose>,
#[structopt(long)]
pub scroll_buffer_size: Option<usize>,
}
impl Options {
pub fn from_yaml(from_yaml: Option<Options>) -> Options {
if let Some(opts) = from_yaml {
opts
} else {
Options::default()
}
}
/// Merges two [`Options`] structs, a `Some` in `other`
/// will supercede a `Some` in `self`
// TODO: Maybe a good candidate for a macro?
pub fn merge(&self, other: Options) -> Options {
let mouse_mode = other.mouse_mode.or(self.mouse_mode);
let pane_frames = other.pane_frames.or(self.pane_frames);
let mirror_session = other.mirror_session.or(self.mirror_session);
let simplified_ui = other.simplified_ui.or(self.simplified_ui);
let default_mode = other.default_mode.or(self.default_mode);
let default_shell = other.default_shell.or_else(|| self.default_shell.clone());
let layout_dir = other.layout_dir.or_else(|| self.layout_dir.clone());
let theme = other.theme.or_else(|| self.theme.clone());
let on_force_close = other.on_force_close.or(self.on_force_close);
let scroll_buffer_size = other.scroll_buffer_size.or(self.scroll_buffer_size);
Options {
simplified_ui,
theme,
default_mode,
default_shell,
layout_dir,
mouse_mode,
pane_frames,
mirror_session,
on_force_close,
scroll_buffer_size,
}
}
/// Merges two [`Options`] structs,
/// - `Some` in `other` will supercede a `Some` in `self`
/// - `Some(bool)` in `other` will toggle a `Some(bool)` in `self`
// TODO: Maybe a good candidate for a macro?
pub fn merge_from_cli(&self, other: Options) -> Options {
let merge_bool = |opt_other: Option<bool>, opt_self: Option<bool>| {
if opt_other.is_some() ^ opt_self.is_some() {
opt_other.or(opt_self)
} else if opt_other.is_some() && opt_self.is_some() {
Some(opt_other.unwrap() ^ opt_self.unwrap())
} else {
None
}
};
let simplified_ui = merge_bool(other.simplified_ui, self.simplified_ui);
let mouse_mode = merge_bool(other.mouse_mode, self.mouse_mode);
let pane_frames = merge_bool(other.pane_frames, self.pane_frames);
let mirror_session = merge_bool(other.mirror_session, self.mirror_session);
let default_mode = other.default_mode.or(self.default_mode);
let default_shell = other.default_shell.or_else(|| self.default_shell.clone());
let layout_dir = other.layout_dir.or_else(|| self.layout_dir.clone());
let theme = other.theme.or_else(|| self.theme.clone());
let on_force_close = other.on_force_close.or(self.on_force_close);
let scroll_buffer_size = other.scroll_buffer_size.or(self.scroll_buffer_size);
Options {
simplified_ui,
theme,
default_mode,
default_shell,
layout_dir,
mouse_mode,
pane_frames,
mirror_session,
on_force_close,
scroll_buffer_size,
}
}
pub fn from_cli(&self, other: Option<Command>) -> Options {
if let Some(Command::Options(options)) = other {
Options::merge_from_cli(self, options.into())
} else {
self.to_owned()
}
}
}
#[derive(Clone, Default, Debug, PartialEq, StructOpt, Serialize, Deserialize)]
/// Options that can be set through cli flags
/// boolean flags end up toggling boolean options in `Options`
pub struct CliOptions {
/// Disable handling of mouse events
#[structopt(long, conflicts_with("mouse-mode"))]
pub disable_mouse_mode: bool,
/// Disable display of pane frames
#[structopt(long, conflicts_with("pane-frames"))]
pub no_pane_frames: bool,
#[structopt(flatten)]
options: Options,
}
impl From<CliOptions> for Options {
fn from(cli_options: CliOptions) -> Self {
let mut opts = cli_options.options;
if cli_options.no_pane_frames {
opts.pane_frames = Some(false);
}
if cli_options.disable_mouse_mode {
opts.mouse_mode = Some(false);
}
Self {
simplified_ui: opts.simplified_ui,
theme: opts.theme,
default_mode: opts.default_mode,
default_shell: opts.default_shell,
layout_dir: opts.layout_dir,
mouse_mode: opts.mouse_mode,
pane_frames: opts.pane_frames,
mirror_session: opts.mirror_session,
on_force_close: opts.on_force_close,
scroll_buffer_size: opts.scroll_buffer_size,
}
}
}
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