1 files changed, 123 insertions, 0 deletions
diff --git a/testing/mozbase/rust/mozprofile/src/profile.rs b/testing/mozbase/rust/mozprofile/src/profile.rs
new file mode 100644
index 0000000000..a1e1cabd00
--- /dev/null
+++ b/testing/mozbase/rust/mozprofile/src/profile.rs
@@ -0,0 +1,123 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+use crate::preferences::{Pref, Preferences};
+use crate::prefreader::{parse, serialize, PrefReaderError};
+use std::collections::btree_map::Iter;
+use std::fs::File;
+use std::io::prelude::*;
+use std::io::Result as IoResult;
+use std::path::{Path, PathBuf};
+use tempfile::{Builder, TempDir};
+
+#[derive(Debug)]
+pub struct Profile {
+    pub path: PathBuf,
+    pub temp_dir: Option<TempDir>,
+    prefs: Option<PrefFile>,
+    user_prefs: Option<PrefFile>,
+}
+
+impl Profile {
+    pub fn new() -> IoResult<Profile> {
+        let dir = Builder::new().prefix("rust_mozprofile").tempdir()?;
+        let path = dir.path().to_path_buf();
+        let temp_dir = Some(dir);
+        Ok(Profile {
+            path,
+            temp_dir,
+            prefs: None,
+            user_prefs: None,
+        })
+    }
+
+    pub fn new_from_path(p: &Path) -> IoResult<Profile> {
+        let path = p.to_path_buf();
+        let temp_dir = None;
+        Ok(Profile {
+            path,
+            temp_dir,
+            prefs: None,
+            user_prefs: None,
+        })
+    }
+
+    pub fn prefs(&mut self) -> Result<&mut PrefFile, PrefReaderError> {
+        if self.prefs.is_none() {
+            let mut pref_path = PathBuf::from(&self.path);
+            pref_path.push("prefs.js");
+            self.prefs = Some(PrefFile::new(pref_path)?)
+        };
+        // This error handling doesn't make much sense
+        Ok(self.prefs.as_mut().unwrap())
+    }
+
+    pub fn user_prefs(&mut self) -> Result<&mut PrefFile, PrefReaderError> {
+        if self.user_prefs.is_none() {
+            let mut pref_path = PathBuf::from(&self.path);
+            pref_path.push("user.js");
+            self.user_prefs = Some(PrefFile::new(pref_path)?)
+        };
+        // This error handling doesn't make much sense
+        Ok(self.user_prefs.as_mut().unwrap())
+    }
+}
+
+#[derive(Debug)]
+pub struct PrefFile {
+    path: PathBuf,
+    pub prefs: Preferences,
+}
+
+impl PrefFile {
+    pub fn new(path: PathBuf) -> Result<PrefFile, PrefReaderError> {
+        let prefs = if !path.exists() {
+            Preferences::new()
+        } else {
+            let mut f = File::open(&path)?;
+            let mut buf = String::with_capacity(4096);
+            f.read_to_string(&mut buf)?;
+            parse(buf.as_bytes())?
+        };
+
+        Ok(PrefFile { path, prefs })
+    }
+
+    pub fn write(&self) -> IoResult<()> {
+        let mut f = File::create(&self.path)?;
+        serialize(&self.prefs, &mut f)
+    }
+
+    pub fn insert_slice<K>(&mut self, preferences: &[(K, Pref)])
+    where
+        K: Into<String> + Clone,
+    {
+        for &(ref name, ref value) in preferences.iter() {
+            self.insert((*name).clone(), (*value).clone());
+        }
+    }
+
+    pub fn insert<K>(&mut self, key: K, value: Pref)
+    where
+        K: Into<String>,
+    {
+        self.prefs.insert(key.into(), value);
+    }
+
+    pub fn remove(&mut self, key: &str) -> Option<Pref> {
+        self.prefs.remove(key)
+    }
+
+    pub fn get(&mut self, key: &str) -> Option<&Pref> {
+        self.prefs.get(key)
+    }
+
+    pub fn contains_key(&self, key: &str) -> bool {
+        self.prefs.contains_key(key)
+    }
+
+    pub fn iter(&self) -> Iter<String, Pref> {
+        self.prefs.iter()
+    }
+}