Merge branch 'symlinks' into 'master'

Create symlinks before installing packages

See merge request redox-os/installer!27

src/config/file.rs

@@ -46,7 +46,7 @@ pub struct FileConfig {
 
 // TODO: Rewrite impls
 impl FileConfig {
-    pub(crate) fn create<P: AsRef<Path>>(self, prefix: P) -> Result<()> {
+    pub(crate) fn create<P: AsRef<Path>>(&self, prefix: P) -> Result<()> {
         let path = self.path.trim_start_matches('/');
         let target_file = prefix.as_ref()
             .join(path);

src/lib.rs

@@ -172,12 +172,12 @@ pub fn install_dir<P: AsRef<Path>, S: AsRef<str>>(config: Config, output_dir: P,
 
     let output_dir = output_dir.to_owned();
 
-    install_packages(&config, output_dir.to_str().unwrap(), cookbook);
-
-    for file in config.files {
+    for file in &config.files {
         file.create(&output_dir)?;
     }
 
+    install_packages(&config, output_dir.to_str().unwrap(), cookbook);
+
     let mut passwd = String::new();
     let mut shadow = String::new();
     let mut next_uid = 1000;