[yabridgectl] Allow setting up VST3 plugins

This is still missing checks for removing leftover files, symlinks for
resources and presets, and a way to differentiate between plugins with
the same name from different prefixes.

tools/yabridgectl/src/utils.rs

@@ -30,6 +30,7 @@ use std::process::{Command, Stdio};
 use textwrap::Wrapper;
 
 use crate::config::{self, Config, KnownConfig, YABRIDGE_HOST_EXE_NAME};
+use crate::files::NativeFile;
 
 /// (Part of) the expected output when running `yabridge-host.exe`. Used to verify that everything's
 /// working correctly. We'll only match this prefix so we can modify the exact output at a later
@@ -47,6 +48,17 @@ pub fn copy<P: AsRef<Path>, Q: AsRef<Path>>(from: P, to: Q) -> Result<u64> {
     })
 }
 
+/// Wrapper around [`std::fs::create_dir_all()`](std::fs::create_dir_all) with a human readable
+/// error message.
+pub fn create_dir_all<P: AsRef<Path>>(path: P) -> Result<()> {
+    fs::create_dir_all(&path).with_context(|| {
+        format!(
+            "Error creating directories for '{}'",
+            path.as_ref().display(),
+        )
+    })
+}
+
 /// Wrapper around [`std::fs::remove_file()`](std::fs::remove_file) with a human readable error
 /// message.
 pub fn remove_file<P: AsRef<Path>>(path: P) -> Result<()> {
@@ -66,6 +78,20 @@ pub fn symlink<P: AsRef<Path>, Q: AsRef<Path>>(src: P, dst: Q) -> Result<()> {
     })
 }
 
+/// Get the type of a file, if it exists.
+pub fn get_file_type(path: &Path) -> Option<NativeFile> {
+    match path.metadata() {
+        Ok(metadata) if metadata.file_type().is_symlink() => {
+            Some(NativeFile::Symlink(path.to_owned()))
+        }
+        Ok(metadata) if metadata.file_type().is_dir() => {
+            Some(NativeFile::Directory(path.to_owned()))
+        }
+        Ok(_) => Some(NativeFile::Regular(path.to_owned())),
+        Err(_) => None,
+    }
+}
+
 /// Hash the conetnts of a file as an `i64` using Rust's built in hasher. Collisions are not a big
 /// issue in our situation so we can get away with this.
 ///