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/*
* Copyright 2016-2018 Doug Goldstein <cardoe@cardoe.com>
*
* Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
* http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
* <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
* option. This file may not be copied, modified, or distributed
* except according to those terms.
*/
extern crate cargo;
extern crate time;
mod metadata;
use cargo::core::Workspace;
use cargo::util::{important_paths, CargoResult};
use cargo::{CliResult, Config};
use failure::format_err;
use std::fs::OpenOptions;
use std::io::Write;
use std::path::{Path, PathBuf};
use metadata::EbuildConfig;
/// Finds the root Cargo.toml of the workspace
fn workspace(config: &Config, manifest: impl AsRef<Path>) -> CargoResult<Workspace> {
let root = important_paths::find_root_manifest_for_wd(manifest.as_ref())?;
Workspace::new(&root, config)
}
pub fn run(verbose: u32, quiet: bool, manifest_path: Option<PathBuf>) -> CliResult {
let mut cmd = cargo_metadata::MetadataCommand::new();
if let Some(path) = manifest_path {
cmd.manifest_path(path);
}
let metadata = cmd
.exec()
.map_err(|e| format_err!("cargo metadata failed: {}", e))?;
let mut crates = Vec::with_capacity(metadata.packages.len());
for pkg in metadata.packages {
crates.push(format!("{}-{}\n", pkg.name, pkg.version));
}
// sort the crates
crates.sort();
// create a default Cargo config
let mut config = Config::default()?;
config.configure(
verbose,
Some(quiet),
/* color */
&None,
/* frozen */
false,
/* locked */
false,
/* offline */
false,
/* target dir */
&None,
/* unstable flags */
&[],
)?;
// Load the workspace and current package
let workspace = workspace(&config, &metadata.workspace_root)?;
let package = workspace.current()?;
let ebuild_data = EbuildConfig::from_package(package, crates);
// build up the ebuild path
let ebuild_path = PathBuf::from(format!("{}-{}.ebuild", package.name(), package.version()));
// Open the file where we'll write the ebuild
let mut file = OpenOptions::new()
.write(true)
.create(true)
.truncate(true)
.open(&ebuild_path)
.expect("failed to create ebuild");
// write the contents out
write!(
file,
include_str!("ebuild.template"),
description = ebuild_data.description.trim(),
homepage = ebuild_data.homepage.trim(),
license = ebuild_data.license.trim(),
crates = ebuild_data.crates.join(""),
cargo_ebuild_ver = env!("CARGO_PKG_VERSION"),
this_year = 1900 + time::now().tm_year,
)
.expect("unable to write ebuild to disk");
println!("Wrote: {}", ebuild_path.display());
Ok(())
}
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