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#![deny(unused)]
#![cfg_attr(test, deny(warnings))]
#![recursion_limit="128"]
#[macro_use] extern crate error_chain;
#[macro_use] extern crate log;
#[macro_use] extern crate scoped_tls;
#[macro_use] extern crate serde_derive;
#[macro_use] extern crate serde_json;
extern crate atty;
extern crate crates_io as registry;
extern crate crossbeam;
extern crate curl;
extern crate docopt;
extern crate filetime;
extern crate flate2;
extern crate fs2;
extern crate git2;
extern crate glob;
extern crate hex;
extern crate home;
extern crate ignore;
extern crate jobserver;
extern crate libc;
extern crate libgit2_sys;
extern crate num_cpus;
extern crate same_file;
extern crate semver;
extern crate serde;
extern crate serde_ignored;
extern crate shell_escape;
extern crate tar;
extern crate tempdir;
extern crate termcolor;
extern crate toml;
extern crate url;
#[cfg(target_os = "macos")]
extern crate core_foundation;
use std::fmt;
use std::error::Error;
use error_chain::ChainedError;
use serde::Deserialize;
use serde::ser;
use docopt::Docopt;
use core::Shell;
use core::shell::Verbosity::Verbose;
pub use util::{CargoError, CargoErrorKind, CargoResult, CliError, CliResult, Config};
pub const CARGO_ENV: &'static str = "CARGO";
macro_rules! bail {
($($fmt:tt)*) => (
return Err(::util::errors::CargoError::from(format_args!($($fmt)*).to_string()))
)
}
pub mod core;
pub mod ops;
pub mod sources;
pub mod util;
pub struct CommitInfo {
pub short_commit_hash: String,
pub commit_hash: String,
pub commit_date: String,
}
pub struct CfgInfo {
pub commit_info: Option<CommitInfo>,
pub release_channel: String,
}
pub struct VersionInfo {
pub major: String,
pub minor: String,
pub patch: String,
pub pre_release: Option<String>,
pub cfg_info: Option<CfgInfo>,
}
impl fmt::Display for VersionInfo {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "cargo {}.{}.{}",
self.major, self.minor, self.patch)?;
if let Some(channel) = self.cfg_info.as_ref().map(|ci| &ci.release_channel) {
if channel != "stable" {
write!(f, "-{}", channel)?;
let empty = String::from("");
write!(f, "{}", self.pre_release.as_ref().unwrap_or(&empty))?;
}
};
if let Some(ref cfg) = self.cfg_info {
if let Some(ref ci) = cfg.commit_info {
write!(f, " ({} {})",
ci.short_commit_hash, ci.commit_date)?;
}
};
Ok(())
}
}
pub fn call_main_without_stdin<'de, Flags: Deserialize<'de>>(
exec: fn(Flags, &Config) -> CliResult,
config: &Config,
usage: &str,
args: &[String],
options_first: bool) -> CliResult
{
let docopt = Docopt::new(usage).unwrap()
.options_first(options_first)
.argv(args.iter().map(|s| &s[..]))
.help(true);
let flags = docopt.deserialize().map_err(|e| {
let code = if e.fatal() {1} else {0};
CliError::new(e.to_string().into(), code)
})?;
exec(flags, config)
}
pub fn print_json<T: ser::Serialize>(obj: &T) {
let encoded = serde_json::to_string(&obj).unwrap();
println!("{}", encoded);
}
pub fn exit_with_error(err: CliError, shell: &mut Shell) -> ! {
debug!("exit_with_error; err={:?}", err);
let CliError { error, exit_code, unknown } = err;
let fatal = exit_code != 0;
let hide = unknown && shell.verbosity() != Verbose;
if let Some(error) = error {
if hide {
drop(shell.error("An unknown error occurred"))
} else if fatal {
drop(shell.error(&error))
} else {
drop(writeln!(shell.err(), "{}", error))
}
if !handle_cause(error, shell) || hide {
drop(writeln!(shell.err(), "\nTo learn more, run the command again \
with --verbose."));
}
}
std::process::exit(exit_code)
}
pub fn handle_error(err: CargoError, shell: &mut Shell) {
debug!("handle_error; err={:?}", &err);
let _ignored_result = shell.error(&err);
handle_cause(err, shell);
}
fn handle_cause<E, EKind>(cargo_err: E, shell: &mut Shell) -> bool
where E: ChainedError<ErrorKind=EKind> + 'static
{
fn print(error: String, shell: &mut Shell) {
drop(writeln!(shell.err(), "\nCaused by:"));
drop(writeln!(shell.err(), " {}", error));
}
unsafe fn extend_lifetime(r: &Error) -> &(Error + 'static) {
std::mem::transmute::<&Error, &Error>(r)
}
let verbose = shell.verbosity();
if verbose == Verbose {
for err in cargo_err.iter().skip(1) {
print(err.to_string(), shell);
}
} else {
for err in cargo_err.iter().skip(1) {
let err = unsafe { extend_lifetime(err) };
if let Some(&CargoError(CargoErrorKind::Internal(..), ..)) =
err.downcast_ref::<CargoError>() {
return false;
}
print(err.to_string(), shell);
}
}
true
}
pub fn version() -> VersionInfo {
macro_rules! env_str {
($name:expr) => { env!($name).to_string() }
}
macro_rules! option_env_str {
($name:expr) => { option_env!($name).map(|s| s.to_string()) }
}
match option_env!("CFG_RELEASE_CHANNEL") {
Some(_) => {
let commit_info =
option_env!("CFG_COMMIT_HASH").map(|s| {
CommitInfo {
commit_hash: s.to_string(),
short_commit_hash: option_env_str!("CFG_SHORT_COMMIT_HASH").unwrap(),
commit_date: option_env_str!("CFG_COMMIT_DATE").unwrap(),
}
});
VersionInfo {
major: env_str!("CARGO_PKG_VERSION_MAJOR"),
minor: env_str!("CARGO_PKG_VERSION_MINOR"),
patch: env_str!("CARGO_PKG_VERSION_PATCH"),
pre_release: option_env_str!("CARGO_PKG_VERSION_PRE"),
cfg_info: Some(CfgInfo {
release_channel: option_env_str!("CFG_RELEASE_CHANNEL").unwrap(),
commit_info: commit_info,
}),
}
},
None => {
VersionInfo {
major: env_str!("CARGO_PKG_VERSION_MAJOR"),
minor: env_str!("CARGO_PKG_VERSION_MINOR"),
patch: env_str!("CARGO_PKG_VERSION_PATCH"),
pre_release: option_env_str!("CARGO_PKG_VERSION_PRE"),
cfg_info: None,
}
}
}
}