Remove ui crate

Merge ui crate with root crate.

In preparation for uploading `meli` as a separate crate on crates.io.

Workspace crates will need to be published as well and having a separate
`ui` crate and binary perhaps doesn't make sense anymore.

1 files changed, 106 insertions, 0 deletions

diff --git a/src/types/helpers.rs b/src/types/helpers.rs
new file mode 100644
index 00000000..ac089e28
--- /dev/null
+++ b/src/types/helpers.rs
@@ -0,0 +1,106 @@
+/*
+ * meli
+ *
+ * Copyright 2017-2018 Manos Pitsidianakis
+ *
+ * This file is part of meli.
+ *
+ * meli is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * meli is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with meli. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+use std;
+use std::fs;
+use std::fs::OpenOptions;
+use std::io::{Read, Write};
+use std::os::unix::fs::PermissionsExt;
+use std::path::PathBuf;
+
+use uuid::Uuid;
+
+#[derive(Debug)]
+pub struct File {
+    pub path: PathBuf,
+    delete_on_drop: bool,
+}
+
+impl Drop for File {
+    fn drop(&mut self) {
+        if self.delete_on_drop {
+            std::fs::remove_file(self.path()).unwrap_or_else(|_| {});
+        }
+    }
+}
+
+impl File {
+    pub fn file(&mut self) -> std::fs::File {
+        OpenOptions::new()
+            .read(true)
+            .write(true)
+            .create(true)
+            .open(&self.path)
+            .unwrap()
+    }
+
+    pub fn path(&self) -> &PathBuf {
+        &self.path
+    }
+    pub fn read_to_string(&self) -> String {
+        let mut buf = Vec::new();
+        let mut f = fs::File::open(&self.path)
+            .unwrap_or_else(|_| panic!("Can't open {}", &self.path.display()));
+        f.read_to_end(&mut buf)
+            .unwrap_or_else(|_| panic!("Can't read {}", &self.path.display()));
+        String::from_utf8(buf).unwrap()
+    }
+}
+
+/// Returned `File` will be deleted when dropped if delete_on_drop is set, so make sure to add it on `context.temp_files`
+/// to reap it later.
+pub fn create_temp_file(
+    bytes: &[u8],
+    filename: Option<&str>,
+    path: Option<&PathBuf>,
+    delete_on_drop: bool,
+) -> File {
+    let mut dir = std::env::temp_dir();
+
+    let path = path.unwrap_or_else(|| {
+        dir.push("meli");
+        std::fs::DirBuilder::new()
+            .recursive(true)
+            .create(&dir)
+            .unwrap();
+        if let Some(filename) = filename {
+            dir.push(filename)
+        } else {
+            let u = Uuid::new_v4();
+            dir.push(u.to_hyphenated().to_string());
+        }
+        &dir
+    });
+
+    let mut f = std::fs::File::create(path).unwrap();
+    let metadata = f.metadata().unwrap();
+    let mut permissions = metadata.permissions();
+
+    permissions.set_mode(0o600); // Read/write for owner only.
+    f.set_permissions(permissions).unwrap();
+
+    f.write_all(bytes).unwrap();
+    f.flush().unwrap();
+    File {
+        path: path.clone(),
+        delete_on_drop,
+    }
+}