Added support for Voom for Vim packages (#232)

README.md

@@ -94,6 +94,7 @@ Just run `topgrade`. It will run the following steps:
   * [Vundle](https://github.com/VundleVim/Vundle.vim)
   * [Plug](https://github.com/junegunn/vim-plug)
   * [Dein](https://github.com/Shougo/dein.vim)
+  * [Voom](https://github.com/airblade/voom)
 * Node
   * Run `yarn global update` if yarn is installed.
   * Run `npm update -g` if NPM is installed and `npm root -g` is a path inside your home directory.

src/main.rs

@@ -386,6 +386,12 @@ fn run() -> Result<(), Error> {
             || vim::upgrade_neovim(&base_dirs, run_type),
             config.no_retry(),
         )?;
+        execute(
+            &mut report,
+            "voom",
+            || vim::run_voom(&base_dirs, run_type),
+            config.no_retry(),
+        )?;
     }
 
     if config.should_run(Step::Node) {

src/steps/vim.rs

@@ -117,3 +117,11 @@ pub fn upgrade_neovim(base_dirs: &BaseDirs, run_type: RunType) -> Result<(), Err
     print_separator(&format!("Neovim ({:?})", plugin_framework));
     upgrade(&nvim, &nvimrc, plugin_framework, run_type)
 }
+
+pub fn run_voom(_base_dirs: &BaseDirs, run_type: RunType) -> Result<(), Error> {
+    let voom = require("voom")?;
+
+    print_separator("voom");
+
+    run_type.execute(voom).arg("update").check_run()
+}