Vim (fixes #17)

src/vim.rs

@@ -0,0 +1,33 @@
+use std::fs;
+use std::path::PathBuf;
+
+#[derive(Debug, Clone, Copy)]
+pub enum PluginFramework {
+    Plug,
+    Vundle,
+    NeoBundle,
+}
+
+impl PluginFramework {
+    pub fn detect(vimrc: &PathBuf) -> Option<PluginFramework> {
+        let content = fs::read_to_string(vimrc).ok()?;
+
+        if content.contains("NeoBundle") {
+            Some(PluginFramework::NeoBundle)
+        } else if content.contains("Vundle") {
+            Some(PluginFramework::Vundle)
+        } else if content.contains("plug#begin") {
+            Some(PluginFramework::Plug)
+        } else {
+            None
+        }
+    }
+
+    pub fn upgrade_command(self) -> &'static str {
+        match self {
+            PluginFramework::NeoBundle => "NeoBundleUpdate",
+            PluginFramework::Vundle => "PluginUpdate",
+            PluginFramework::Plug => "PlugUpdate",
+        }
+    }
+}