just pretend this makes sense

ofborg/Cargo.lock

@@ -8,6 +8,7 @@ dependencies = [
  "serde 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tempfile 2.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -308,6 +309,11 @@ dependencies = [
  "libc 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "redox_syscall"
+version = "0.1.31"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "regex"
 version = "0.1.80"
@@ -400,6 +406,18 @@ dependencies = [
  "rand 0.3.17 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "tempfile"
+version = "2.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand 0.3.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "redox_syscall 0.1.31 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "thread-id"
 version = "2.0.0"
@@ -519,6 +537,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum pnacl-build-helper 1.4.11 (registry+https://github.com/rust-lang/crates.io-index)" = "dfbe13ee77c06fb633d71c72438bd983286bb3521863a753ade8e951c7efb090"
 "checksum quote 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)" = "7a6e920b65c65f10b2ae65c831a81a073a89edd28c7cce89475bff467ab4167a"
 "checksum rand 0.3.17 (registry+https://github.com/rust-lang/crates.io-index)" = "61efcbcd9fa8d8fbb07c84e34a8af18a1ff177b449689ad38a6e9457ecc7b2ae"
+"checksum redox_syscall 0.1.31 (registry+https://github.com/rust-lang/crates.io-index)" = "8dde11f18c108289bef24469638a04dce49da56084f2d50618b226e47eb04509"
 "checksum regex 0.1.80 (registry+https://github.com/rust-lang/crates.io-index)" = "4fd4ace6a8cf7860714a2c2280d6c1f7e6a413486c13298bbc86fd3da019402f"
 "checksum regex-syntax 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)" = "f9ec002c35e86791825ed294b50008eea9ddfc8def4420124fbc6b08db834957"
 "checksum rustc-demangle 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "aee45432acc62f7b9a108cc054142dac51f979e69e71ddce7d6fc7adf29e817e"
@@ -530,6 +549,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum syn 0.11.11 (registry+https://github.com/rust-lang/crates.io-index)" = "d3b891b9015c88c576343b9b3e41c2c11a51c219ef067b264bd9c8aa9b441dad"
 "checksum synom 0.11.3 (registry+https://github.com/rust-lang/crates.io-index)" = "a393066ed9010ebaed60b9eafa373d4b1baac186dd7e008555b0f702b51945b6"
 "checksum tempdir 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)" = "87974a6f5c1dfb344d733055601650059a3363de2a6104819293baff662132d6"
+"checksum tempfile 2.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "11ce2fe9db64b842314052e2421ac61a73ce41b898dc8e3750398b219c5fc1e0"
 "checksum thread-id 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a9539db560102d1cef46b8b78ce737ff0bb64e7e18d35b2a5688f7d097d0ff03"
 "checksum thread_local 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)" = "8576dbbfcaef9641452d5cf0df9b0e7eeab7694956dd33bb61515fb8f18cfdd5"
 "checksum unicode-bidi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "49f2bd0c6468a8230e1db229cff8029217cf623c767ea5d60bfbd42729ea54d5"

ofborg/Cargo.toml

@@ -9,4 +9,5 @@ md5 = "0.3.5"
 fs2 = "0.4.2"
 serde = "1.0"
 serde_derive = "1.0"
-serde_json = "1.0"
+serde_json = "1.0"
+tempfile = "2.2.0"

ofborg/src/bin/builder.rs

@@ -17,6 +17,7 @@ use ofborg::config;
 use ofborg::checkout;
 use ofborg::worker;
 use ofborg::message::buildjob;
+use ofborg::nix;
 
 fn main() {
     let cfg = config::load(env::args().nth(1).unwrap().as_ref());
@@ -90,18 +91,13 @@ impl worker::SimpleWorker for BuildWorker {
             None => { String::from("origin/master") }
         };
 
-        let refpath = co.checkout_ref(target_branch.as_ref());
+        let refpath = co.checkout_ref(target_branch.as_ref()).unwrap();
         co.fetch_pr(job.pr.number).unwrap();
         co.merge_commit(job.pr.head_sha.as_ref()).unwrap();
 
-        match refpath {
-            Ok(path) => {
-                println!("Got path: {:?}", path);
-            }
-            Err(wat) => {
-                println!("Failed to do a checkout of ref : {:?}", wat);
-            }
-        }
+        println!("Got path: {:?}", refpath);
+
+        let cmd = nix::safely_build_attrs_cmd(refpath, job.attrs);
 
         return Ok(())
     }

ofborg/src/lib.rs

@@ -3,6 +3,7 @@ extern crate serde_derive;
 extern crate serde;
 extern crate serde_json;
 
+extern crate tempfile;
 extern crate amqp;
 extern crate fs2;
 extern crate md5;
@@ -13,6 +14,7 @@ pub mod clone;
 pub mod worker;
 pub mod config;
 pub mod message;
+pub mod nix;
 
 pub mod ofborg {
     pub use config;
@@ -21,5 +23,5 @@ pub mod ofborg {
     pub use clone;
     pub use worker;
     pub use message;
-
+    pub use nix;
 }

ofborg/src/message/buildjob.rs

@@ -5,6 +5,7 @@ use serde_json;
 pub struct BuildJob {
     pub repo: Repo,
     pub pr: Pr,
+    pub attrs: Vec<String>,
 }
 
 pub fn from(data: &Vec<u8>) -> Result<BuildJob, serde_json::error::Error> {

ofborg/src/nix.rs

@@ -0,0 +1,48 @@
+use std::path::Path;
+use std::ffi::OsString;
+use std::process::{Command,Stdio};
+use tempfile::tempfile;
+use std::fs::File;
+
+pub fn safely_build_attrs(nixpkgs: &Path, attrs: Vec<String>) -> Result<File,File> {
+    let mut nixpath = OsString::new();
+    nixpath.push("nixpkgs=");
+    nixpath.push(nixpkgs.as_os_str());
+
+    let stdout = tempfile().unwrap();
+    let stderr = stdout.try_clone().unwrap();
+    let reader = stderr.try_clone().unwrap();
+
+    let mut cmd = Command::new("nix-build")
+        .env_clear()
+        .current_dir(nixpkgs)
+        .stdout(Stdio::from(stdout))
+        .stderr(Stdio::from(stderr))
+        .env("NIX_PATH", nixpath);
+
+    for attr in attrs {
+        cmd.arg("-A");
+        cmd.arg(attr);
+    }
+
+    let stat = cmd
+        .status()
+        .unwrap();
+
+
+    return Ok(reader);
+}
+
+/*
+        $attrs = array_intersperse(array_values((array)$body->attrs), '-A');
+        var_dump($attrs);
+
+        $fillers = implode(" ", array_fill(0, count($attrs), '%s'));
+
+        $cmd = 'NIX_PATH=nixpkgs=%s nix-build --no-out-link --argstr system %s --option restrict-eval true --keep-going . ' . $fillers;
+        $args = $attrs;
+        array_unshift($args, NIX_SYSTEM);
+        array_unshift($args, $pname);
+
+
+*/

shell.nix

@@ -1,5 +1,12 @@
 let
-  pkgs = import <nixpkgs> {};
+  p = import <nixpkgs> {};
+  pkgs = import (p.fetchFromGitHub {
+    owner = "NixOS";
+    repo = "nixpkgs-channels";
+    rev = "cfafd6f5a819472911eaf2650b50a62f0c143e3e";
+    sha256 = "10xgiyh4hbwwiy8qg70ma1f27nd717aflksk9fx3ci8bmxmqbkkn";
+  }) {};
+
 
   inherit (pkgs) stdenv;