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Nix: support debug / cloning and setting the system

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Graham Christensen 2017-11-18 13:46:06 -05:00
parent 017c7e9a2b
commit bdf9ed5ac3
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1 changed files with 22 additions and 10 deletions
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32
ofborg/src/nix.rs
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@ -6,6 +6,7 @@ use std::fs::File;
use std::io::Seek; use std::io::Seek;
use std::io::SeekFrom; use std::io::SeekFrom;
#[derive(Clone, Debug, PartialEq)]
pub struct Nix { pub struct Nix {
system: String, system: String,
remote: String remote: String
@ -19,35 +20,46 @@ pub fn new(system: String, remote: String) -> Nix {
} }
impl Nix { impl Nix {
pub fn safely_build_attrs(&self, nixpkgs: &Path, attrs: Vec<String>) -> Result<File,File> { pub fn with_system(&self, system: String) -> Nix {
let mut nixpath = OsString::new(); return Nix{
nixpath.push("nixpkgs="); system: system,
nixpath.push(nixpkgs.as_os_str()); remote: self.remote.clone(),
};
}
let mut attrargs: Vec<String> = Vec::with_capacity(attrs.len() * 2); pub fn safely_build_attrs(&self, nixpkgs: &Path, attrs: Vec<String>) -> Result<File,File> {
let mut attrargs: Vec<String> = Vec::with_capacity(2 + (attrs.len() * 2));
attrargs.push(String::from("--no-out-link"));
attrargs.push(String::from("--keep-going"));
for attr in attrs { for attr in attrs {
attrargs.push(String::from("-A")); attrargs.push(String::from("-A"));
attrargs.push(attr); attrargs.push(attr);
} }
return self.safely("nix-build", nixpkgs, attrargs);
}
pub fn safely(&self, cmd: &str, nixpkgs: &Path, args: Vec<String>) -> Result<File,File> {
let mut nixpath = OsString::new();
nixpath.push("nixpkgs=");
nixpath.push(nixpkgs.as_os_str());
let stdout = tempfile().expect("Fetching a stdout tempfile"); let stdout = tempfile().expect("Fetching a stdout tempfile");
let stderr = stdout.try_clone().expect("Cloning stdout for stderr"); let stderr = stdout.try_clone().expect("Cloning stdout for stderr");
let mut reader = stderr.try_clone().expect("Cloning stderr to the reader"); let mut reader = stderr.try_clone().expect("Cloning stderr to the reader");
let status = Command::new("nix-build") let status = Command::new(cmd)
.env_clear() .env_clear()
.current_dir(nixpkgs) .current_dir(nixpkgs)
.stdout(Stdio::from(stdout)) .stdout(Stdio::from(stdout))
.stderr(Stdio::from(stderr)) .stderr(Stdio::from(stderr))
.env("NIX_PATH", nixpath) .env("NIX_PATH", nixpath)
.env("NIX_REMOTE", &self.remote) .env("NIX_REMOTE", &self.remote)
.arg("--no-out-link")
.args(&["--option", "restrict-eval", "true"]) .args(&["--option", "restrict-eval", "true"])
.args(&["--argstr", "system", &self.system]) .args(&["--argstr", "system", &self.system])
.arg("--keep-going") .args(args)
.args(attrargs)
.status() .status()
.expect("Running nix-build"); .expect(format!("Running {:?}", cmd).as_ref());
reader.seek(SeekFrom::Start(0)).expect("Seeking to Start(0)"); reader.seek(SeekFrom::Start(0)).expect("Seeking to Start(0)");