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|
use crate::commands::Command;
use crate::errors::{ProgramError, TreeBuildError};
use crate::tree_options::TreeOptions;
/// this module manages reading and translating
/// the arguments passed on launch of the application.
use clap;
use std::env;
use std::io::{self, stdin};
use std::path::PathBuf;
use std::result::Result;
use termion::input::TermRead;
pub struct AppLaunchArgs {
pub root: PathBuf, // what should be the initial root
pub file_export_path: Option<String>, // where to write the produced path (if required with --out)
pub cmd_export_path: Option<String>, // where to write the produced command (if required with --outcmd, or -oc)
pub tree_options: TreeOptions, // initial tree options
pub commands: Vec<Command>, // commands passed as cli argument
pub install: bool, // installation is required
}
// declare the possible CLI arguments, and gets the values
fn get_cli_args<'a>() -> clap::ArgMatches<'a> {
clap::App::new("broot")
.version(env!("CARGO_PKG_VERSION"))
.author("dystroy <denys.seguret@gmail.com>")
.about("Balanced tree view + fuzzy search + BFS + customizable launcher")
.arg(clap::Arg::with_name("root").help("sets the root directory"))
.arg(
clap::Arg::with_name("cmd_export_path")
.long("outcmd")
.takes_value(true)
.help("where to write the produced cmd (if any)"),
)
.arg(
clap::Arg::with_name("commands")
.short("c")
.long("cmd")
.takes_value(true)
.help("commands to execute (space separated, experimental)"),
)
.arg(
clap::Arg::with_name("file_export_path")
.short("o")
.long("out")
.takes_value(true)
.help("where to write the produced path (if any)"),
)
.arg(
clap::Arg::with_name("gitignore")
.short("g")
.long("gitignore")
.takes_value(true)
.help("respect .gitignore rules (yes, no, auto)"),
)
.arg(
clap::Arg::with_name("hidden")
.short("h")
.long("hidden")
.help("show hidden files"),
)
.arg(
clap::Arg::with_name("install")
.long("install")
.help("install the br shell function"),
)
.arg(
clap::Arg::with_name("only-folders")
.short("f")
.long("only-folders")
.help("only show folders"),
)
.arg(
clap::Arg::with_name("permissions")
.short("p")
.long("permissions")
.help("show permissions, with owner and group"),
)
.arg(
clap::Arg::with_name("sizes")
.short("s")
.long("sizes")
.help("show the size of files and directories"),
)
.get_matches()
}
// return the parsed launch arguments
pub fn read_lauch_args() -> Result<AppLaunchArgs, ProgramError> {
let cli_args = get_cli_args();
let mut root = match cli_args.value_of("root") {
Some(path) => PathBuf::from(path),
None => env::current_dir()?,
};
if !root.exists() {
Err(TreeBuildError::FileNotFound {
path: format!("{:?}", &root),
})?;
}
if !root.is_dir() {
// we try to open the parent directory if the passed file isn't one
if let Some(parent) = root.parent() {
info!("Passed path isn't a directory => opening parent instead");
root = parent.to_path_buf();
} else {
// let's give up
Err(TreeBuildError::NotADirectory {
path: format!("{:?}", &root),
})?;
}
}
let root = root.canonicalize()?;
let mut tree_options = TreeOptions::new();
tree_options.only_folders = cli_args.is_present("only-folders");
tree_options.show_hidden = cli_args.is_present("hidden");
tree_options.show_sizes = cli_args.is_present("sizes");
tree_options.show_permissions = cli_args.is_present("permissions");
if let Some(respect_ignore) = cli_args.value_of("gitignore") {
tree_options.respect_git_ignore = respect_ignore.parse()?;
}
let install = cli_args.is_present("install");
let file_export_path = cli_args
.value_of("file_export_path")
.and_then(|s| Some(s.to_owned()));
let cmd_export_path = cli_args
.value_of("cmd_export_path")
.and_then(|s| Some(s.to_owned()));
let commands: Vec<Command> = match cli_args.value_of("commands") {
Some(str) => str
.split(' ')
.map(|s| Command::from(s.to_string()))
.collect(),
None => Vec::new(),
};
Ok(AppLaunchArgs {
root,
file_export_path,
cmd_export_path,
tree_options,
commands,
install,
})
}
pub fn ask_authorization(question: &str) -> io::Result<bool> {
println!("{}", question);
let answer = stdin().lock().read_line()?;
Ok(match answer {
Some(ref s) => match &s[..] {
"n" => false,
_ => true,
},
_ => true,
})
}
|
