// Copyright 2016 Joe Wilm, The Alacritty Project Contributors // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. use ::log; use clap::{Arg, App, crate_name, crate_version, crate_authors, crate_description}; use crate::index::{Line, Column}; use crate::config::{Dimensions, Shell}; use crate::window::{DEFAULT_TITLE, DEFAULT_CLASS}; use std::path::{Path, PathBuf}; use std::borrow::Cow; /// Options specified on the command line pub struct Options { pub live_config_reload: Option, pub print_events: bool, pub ref_test: bool, pub dimensions: Option, pub title: Option, pub class: Option, pub log_level: log::LevelFilter, pub command: Option>, pub working_dir: Option, pub config: Option, pub persistent_logging: bool, } impl Default for Options { fn default() -> Options { Options { live_config_reload: None, print_events: false, ref_test: false, dimensions: None, title: None, class: None, log_level: log::LevelFilter::Warn, command: None, working_dir: None, config: None, persistent_logging: false, } } } impl Options { /// Build `Options` from command line arguments pub fn load() -> Options { let mut options = Options::default(); let matches = App::new(crate_name!()) .version(crate_version!()) .author(crate_authors!("\n")) .about(crate_description!()) .arg(Arg::with_name("ref-test") .long("ref-test") .help("Generates ref test")) .arg(Arg::with_name("live-config-reload") .long("live-config-reload") .help("Enable automatic config reloading")) .arg(Arg::with_name("no-live-config-reload") .long("no-live-config-reload") .help("Disable automatic config reloading") .conflicts_with("live-config-reload")) .arg(Arg::with_name("print-events") .long("print-events")) .arg(Arg::with_name("persistent-logging") .long("persistent-logging") .help("Keep the log file after quitting Alacritty")) .arg(Arg::with_name("dimensions") .long("dimensions") .short("d") .value_names(&["columns", "lines"]) .help("Defines the window dimensions. Falls back to size specified by \ window manager if set to 0x0 [default: 80x24]")) .arg(Arg::with_name("title") .long("title") .short("t") .takes_value(true) .help(&format!("Defines the window title [default: {}]", DEFAULT_TITLE))) .arg(Arg::with_name("class") .long("class") .takes_value(true) .help(&format!("Defines window class on X11 [default: {}]", DEFAULT_CLASS))) .arg(Arg::with_name("q") .short("q") .multiple(true) .conflicts_with("v") .help("Reduces the level of verbosity (the min level is -qq)")) .arg(Arg::with_name("v") .short("v") .multiple(true) .conflicts_with("q") .help("Increases the level of verbosity (the max level is -vvv)")) .arg(Arg::with_name("working-directory") .long("working-directory") .takes_value(true) .help("Start the shell in the specified working directory")) .arg(Arg::with_name("config-file") .long("config-file") .takes_value(true) .help("Specify alternative configuration file \ [default: $XDG_CONFIG_HOME/alacritty/alacritty.yml]")) .arg(Arg::with_name("command") .long("command") .short("e") .multiple(true) .takes_value(true) .min_values(1) .allow_hyphen_values(true) .help("Command and args to execute (must be last argument)")) .get_matches(); if matches.is_present("ref-test") { options.ref_test = true; } if matches.is_present("print-events") { options.print_events = true; } if matches.is_present("live-config-reload") { options.live_config_reload = Some(true); } else if matches.is_present("no-live-config-reload") { options.live_config_reload = Some(false); } if matches.is_present("persistent-logging") { options.persistent_logging = true; } if let Some(mut dimensions) = matches.values_of("dimensions") { let width = dimensions.next().map(|w| w.parse().map(Column)); let height = dimensions.next().map(|h| h.parse().map(Line)); if let (Some(Ok(width)), Some(Ok(height))) = (width, height) { options.dimensions = Some(Dimensions::new(width, height)); } } options.class = matches.value_of("class").map(|c| c.to_owned()); options.title = matches.value_of("title").map(|t| t.to_owned()); match matches.occurrences_of("q") { 0 => {}, 1 => options.log_level = log::LevelFilter::Error, 2 | _ => options.log_level = log::LevelFilter::Off } match matches.occurrences_of("v") { 0 if !options.print_events => {}, 0 | 1 => options.log_level = log::LevelFilter::Info, 2 => options.log_level = log::LevelFilter::Debug, 3 | _ => options.log_level = log::LevelFilter::Trace } if let Some(dir) = matches.value_of("working-directory") { options.working_dir = Some(PathBuf::from(dir.to_string())); } if let Some(path) = matches.value_of("config-file") { options.config = Some(PathBuf::from(path.to_string())); } if let Some(mut args) = matches.values_of("command") { // The following unwrap is guaranteed to succeed. // If 'command' exists it must also have a first item since // Arg::min_values(1) is set. let command = String::from(args.next().unwrap()); let args = args.map(String::from).collect(); options.command = Some(Shell::new_with_args(command, args)); } options } pub fn dimensions(&self) -> Option { self.dimensions } pub fn command(&self) -> Option<&Shell<'_>> { self.command.as_ref() } pub fn config_path(&self) -> Option> { self.config.as_ref().map(|p| Cow::Borrowed(p.as_path())) } }