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|
//! # Iris
//! A locking plugin manager for vim
use iris::{Config, Result};
use log::info;
use std::{env, process::exit};
const USAGE: &str = "\
Usage: iris [OPTION]... COMMAND [FILE}";
const HELP: &str = "\
A locking plugin manager for vim
Commands:
switch checkout plugins using their current refs and generate autoload
file
lock update plugin refs to point to the latest commit
Options:
-v, --verbose enable verbose output
-q, --quiet disable output
-h, --help print the help message
-V, --version print the program version
";
/// print the program version
fn version() -> ! {
println!("iris {}", env!("CARGO_PKG_VERSION"));
exit(0);
}
/// print the program's usage
fn usage() -> ! {
eprintln!("{USAGE}");
exit(1);
}
/// print the program's help message
fn help() -> ! {
println!("{USAGE}\n{HELP}");
exit(0);
}
struct Options {
/// the command to run
command: String,
/// the file to load instead of defaults
file: Option<String>,
/// print verbose output
verbose: bool,
/// silence output
quiet: bool,
}
// parse options
fn opts() -> Options {
let mut args = env::args().into_iter().peekable();
let mut quiet = false;
let mut verbose = false;
// skip program name
_ = args.next();
// options
while let Some(arg) = args.peek() {
// arg is not an option
if !arg.starts_with("-") {
break;
};
// grab next
let arg = args.next().expect("no arg?!");
match arg.as_str() {
// stop parsing options
"--" => break,
// quiet
"-q" | "--quiet" => {
quiet = true;
}
// verbose
"-v" | "--verbose" => {
verbose = true;
}
// version
"-V" | "--version" => version(),
// help
"-h" | "--help" => help(),
// invalid
_ => {
eprintln!("invalid options: '{arg}'");
exit(1);
}
};
}
// command
let Some(command) = args.next() else {
usage();
};
// file
let file = args.next();
// force end of arguments
if args.next().is_some() {
usage();
};
Options {
command,
file,
quiet,
verbose,
}
}
fn log(opts: &Options) {
if !opts.quiet {
let level = if opts.verbose {
log::LevelFilter::Trace
} else {
log::LevelFilter::Info
};
env_logger::Builder::from_default_env()
.filter_level(level)
.format_timestamp(None)
.format_module_path(false)
.format_source_path(false)
.init();
}
}
fn switch(opts: &Options) -> Result<()> {
let cfg = match &opts.file {
Some(path) => Config::read_from_file(path),
None => Config::read_from_lock_file()
.or_else(|_| Config::read_from_plugin_file()),
}?;
for plugin in &cfg.plugins {
plugin.switch()?;
info!("switched {}", plugin.id);
}
cfg.write_autoload_file()?;
Ok(())
}
fn lock(opts: &Options) -> Result<()> {
let mut cfg = match &opts.file {
Some(path) => Config::read_from_file(path),
None => Config::read_from_plugin_file(),
}?;
for plugin in &mut cfg.plugins {
plugin.lock()?;
info!("locked {}", plugin.id);
}
// save lock file
cfg.write_to_lock_file()?;
Ok(())
}
fn inner() -> Result<()> {
// parse opts
let opts = opts();
// initalize logger (if not quiet)
log(&opts);
// handle command
match opts.command.as_str() {
"switch" => switch(&opts)?,
"lock" => lock(&opts)?,
cmd => {
eprintln!("unknown command: '{cmd}'");
exit(1);
}
};
Ok(())
}
fn main() {
if let Err(err) = inner() {
log::error!("{err}");
exit(1);
}
}
|
