vcpkg suppport (fix #81)

README.md

@@ -62,6 +62,7 @@ Just run `topgrade`. It will run the following steps:
 * Run Cargo [install-update](https://github.com/nabijaczleweli/cargo-update)
 * Upgrade Emacs packages (You'll get a better output if you have [Paradox](https://github.com/Malabarba/paradox) installed)
 * Upgrade [OCaml packages](https://opam.ocaml.org/)
+* Upgrade [vcpkg](https://github.com/Microsoft/vcpkg) globally installed packages
 * Upgrade Python packages installed using [pipx](https://github.com/cs01/pipx)
 * Upgrade [R globally installed packages](https://github.com/ankane/jetpack)
 * Upgrade Vim/Neovim packages. Works with the following plugin frameworks:

src/generic.rs

@@ -161,6 +161,22 @@ pub fn run_opam_update(terminal: &mut Terminal, dry_run: bool) -> Option<(&'stat
     None
 }
 
+#[must_use]
+pub fn run_vcpkg_update(terminal: &mut Terminal, dry_run: bool) -> Option<(&'static str, bool)> {
+    if let Some(vcpkg) = utils::which("vcpkg") {
+        terminal.print_separator("vcpkg");
+
+        let success = || -> Result<(), Error> {
+            Executor::new(&vcpkg, dry_run).args(&["upgrade", "--no-dry-run"]).spawn()?.wait()?.check()?;
+            Ok(())
+        }().is_ok();
+
+        return Some(("vcpkg", success));
+    }
+
+    None
+}
+
 #[must_use]
 pub fn run_pipx_update(terminal: &mut Terminal, dry_run: bool) -> Option<(&'static str, bool)> {
     if let Some(pipx) = utils::which("pipx") {

src/main.rs

@@ -322,6 +322,10 @@ fn run() -> Result<(), Error> {
         |terminal| generic::run_opam_update(terminal, opt.dry_run),
         &mut execution_context,
     )?);
+    report.push_result(execute(
+        |terminal| generic::run_vcpkg_update(terminal, opt.dry_run),
+        &mut execution_context,
+    )?);
     report.push_result(execute(
         |terminal| generic::run_pipx_update(terminal, opt.dry_run),
         &mut execution_context,