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#![deny(missing_docs)]
#[macro_use]
extern crate error_chain;
extern crate semver;
extern crate serde;
#[macro_use]
extern crate serde_derive;
extern crate serde_json;
use std::collections::HashMap;
use std::env;
use std::path::Path;
use std::process::Command;
use std::str::from_utf8;
use std::fmt::Write;
pub use errors::{Error, ErrorKind, Result};
pub use dependency::{Dependency, DependencyKind};
use serde::{de, ser, Serializer};
mod errors;
mod dependency;
#[derive(Clone, Serialize, Deserialize, Debug)]
pub struct Metadata {
pub packages: Vec<Package>,
pub workspace_members: Vec<WorkspaceMember>,
pub resolve: Option<Resolve>,
pub workspace_root: String,
pub target_directory: String,
version: usize,
#[doc(hidden)]
#[serde(skip)]
__do_not_match_exhaustively: (),
}
#[derive(Clone, Serialize, Deserialize, Debug)]
pub struct Resolve {
pub nodes: Vec<Node>,
#[doc(hidden)]
#[serde(skip)]
__do_not_match_exhaustively: (),
}
#[derive(Clone, Serialize, Deserialize, Debug)]
pub struct Node {
pub id: String,
pub dependencies: Vec<String>,
#[doc(hidden)]
#[serde(skip)]
__do_not_match_exhaustively: (),
}
#[derive(Clone, Serialize, Deserialize, Debug)]
pub struct Package {
pub name: String,
pub version: String,
pub id: String,
source: Option<String>,
pub dependencies: Vec<Dependency>,
pub targets: Vec<Target>,
pub features: HashMap<String, Vec<String>>,
pub manifest_path: String,
#[doc(hidden)]
#[serde(skip)]
__do_not_match_exhaustively: (),
}
#[derive(Clone, Serialize, Deserialize, Debug)]
pub struct Target {
pub name: String,
pub kind: Vec<String>,
#[serde(default)]
pub crate_types: Vec<String>,
pub src_path: String,
#[doc(hidden)]
#[serde(skip)]
__do_not_match_exhaustively: (),
}
#[derive(Clone, Debug)]
pub struct WorkspaceMember {
pub name: String,
pub version: semver::Version,
pub url: String,
#[doc(hidden)] __do_not_match_exhaustively: (),
}
impl<'de> de::Deserialize<'de> for WorkspaceMember {
fn deserialize<D>(d: D) -> std::result::Result<WorkspaceMember, D::Error>
where
D: de::Deserializer<'de>,
{
let string = String::deserialize(d)?;
let mut s = string.splitn(3, ' ');
let name = s.next().unwrap();
let version = s.next().unwrap();
let version = semver::Version::parse(version).map_err(de::Error::custom)?;
let url = &s.next().unwrap();
let url = &url[1..url.len() - 1];
Ok(WorkspaceMember {
name: name.to_owned(),
version,
url: url.to_owned(),
__do_not_match_exhaustively: (),
})
}
}
impl ser::Serialize for WorkspaceMember {
fn serialize<S>(&self, serializer: S) -> std::result::Result<S::Ok, S::Error>
where
S: Serializer,
{
let mut output = String::new();
write!(output, "{} {} ({})", self.name, self.version, self.url).unwrap();
serializer.serialize_str(&output)
}
}
pub fn metadata(manifest_path: Option<&Path>) -> Result<Metadata> {
metadata_deps(manifest_path, false)
}
pub fn metadata_deps(manifest_path: Option<&Path>, deps: bool) -> Result<Metadata> {
let cargo = env::var("CARGO").unwrap_or_else(|_| String::from("cargo"));
let mut cmd = Command::new(cargo);
cmd.arg("metadata");
if !deps {
cmd.arg("--no-deps");
}
cmd.args(&["--format-version", "1"]);
if let Some(manifest_path) = manifest_path {
cmd.arg("--manifest-path").arg(manifest_path.as_os_str());
}
let output = cmd.output()?;
if !output.status.success() {
return Err(ErrorKind::CargoMetadata(String::from_utf8(output.stderr)?).into());
}
let stdout = from_utf8(&output.stdout)?;
let meta = serde_json::from_str(stdout)?;
Ok(meta)
}