use crate::{Cache, ToolPath};
use anyhow::Result;
use std::path::PathBuf;
use termcolor::{Color, ColorChoice, ColorSpec, StandardStream, WriteColor};
pub struct Config {
cache: Option<Cache>,
verbose: bool,
choice: ColorChoice,
}
impl Config {
pub fn new() -> Config {
Config {
cache: None,
verbose: false,
choice: if atty::is(atty::Stream::Stderr) {
ColorChoice::Auto
} else {
ColorChoice::Never
},
}
}
pub fn load_cache(&mut self) -> Result<()> {
assert!(!self.cache.is_some());
self.cache = Some(Cache::new()?);
Ok(())
}
pub fn cache(&self) -> &Cache {
self.cache.as_ref().expect("cache not loaded yet")
}
pub fn is_verbose(&self) -> bool {
self.verbose
}
pub fn verbose(&self, f: impl FnOnce()) {
if self.verbose {
f();
}
}
pub fn set_verbose(&mut self, verbose: bool) {
self.verbose = verbose;
}
pub fn status(&self, name: &str, rest: &str) {
let mut shell = StandardStream::stderr(self.choice);
drop(shell.set_color(ColorSpec::new().set_fg(Some(Color::Green)).set_bold(true)));
eprint!("{:>12}", name);
drop(shell.reset());
eprintln!(" {}", rest);
}
pub fn print_error(&self, err: &anyhow::Error) {
if let Some(code) = crate::utils::normal_process_exit_code(err) {
std::process::exit(code);
}
let mut shell = StandardStream::stderr(self.choice);
drop(shell.set_color(ColorSpec::new().set_fg(Some(Color::Red)).set_bold(true)));
eprint!("error");
drop(shell.reset());
eprintln!(": {}", err);
for cause in err.chain().skip(1) {
eprintln!("");
drop(shell.set_color(ColorSpec::new().set_bold(true)));
eprint!("Caused by");
drop(shell.reset());
eprintln!(":");
eprintln!(" {}", cause.to_string().replace("\n", "\n "));
}
}
pub fn info(&self, msg: &str) {
let mut shell = StandardStream::stderr(self.choice);
drop(shell.set_color(ColorSpec::new().set_fg(Some(Color::Cyan)).set_bold(true)));
eprint!("info");
drop(shell.reset());
eprintln!(": {}", msg);
}
fn get_tool(&self, tool: &str, version: Option<&str>) -> (PathBuf, bool) {
if let Some(s) = std::env::var_os(tool.to_uppercase().replace("-", "_")) {
(s.into(), true)
} else {
let mut cache_path = self.cache().root().join(tool);
if let Some(v) = version {
cache_path.push(v);
cache_path.push(tool)
}
(cache_path, false)
}
}
pub fn get_wasm_bindgen(&self, version: &str) -> (PathBuf, bool) {
let (mut path, is_overridden) = self.get_tool("wasm-bindgen", Some(version));
if !is_overridden {
path.set_extension(std::env::consts::EXE_EXTENSION);
}
(path, is_overridden)
}
pub fn get_wasm_opt(&self) -> ToolPath {
let (path, is_overridden) = self.get_tool("wasm-opt", None);
if !is_overridden {
let mut bin = ["bin", "wasm-opt"].iter().collect::<PathBuf>();
bin.set_extension(std::env::consts::EXE_EXTENSION);
let bin_path = path.join(&bin);
let mut sub_paths = vec![bin];
if cfg!(target_os = "macos") {
let mut dylib = ["lib", "libbinaryen"].iter().collect::<PathBuf>();
dylib.set_extension(std::env::consts::DLL_EXTENSION);
sub_paths.push(dylib);
}
ToolPath::Cached {
bin_path,
base: path,
sub_paths,
}
} else {
ToolPath::Overridden(path)
}
}
}