Allow specifying custom names for bundles

Cargo.lock

@@ -811,6 +811,15 @@ dependencies = [
  "unicode-xid",
 ]
 
+[[package]]
+name = "toml"
+version = "0.5.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a31142970826733df8241ef35dc040ef98c679ab14d7c3e54d827099b3acecaa"
+dependencies = [
+ "serde",
+]
+
 [[package]]
 name = "ttf-parser"
 version = "0.14.0"
@@ -1109,4 +1118,6 @@ name = "xtask"
 version = "0.1.0"
 dependencies = [
  "anyhow",
+ "serde",
+ "toml",
 ]

xtask/Cargo.toml

@@ -7,3 +7,5 @@ license = "ISC"
 
 [dependencies]
 anyhow = "1.0"
+serde = { version = "1.0", features = ["derive"] }
+toml = "0.5"

xtask/src/main.rs

@@ -1,4 +1,6 @@
 use anyhow::{bail, Context, Result};
+use serde::Deserialize;
+use std::collections::HashMap;
 use std::fs;
 use std::path::Path;
 use std::process::Command;
@@ -6,6 +8,15 @@ use std::process::Command;
 const USAGE_STRING: &str =
     "Usage: cargo xtask bundle <package> [--release] [--target <triple>] [--bundle-vst3]";
 
+/// Any additional configuration that might be useful for creating plugin bundles, stored as
+/// `bundler.toml` alongside the workspace's main `Cargo.toml` file.
+type BundlerConfig = HashMap<String, PackageConfig>;
+
+#[derive(Debug, Clone, Deserialize)]
+struct PackageConfig {
+    name: Option<String>,
+}
+
 fn main() -> Result<()> {
     let project_root = Path::new(env!("CARGO_MANIFEST_DIR"))
         .parent()
@@ -32,6 +43,11 @@ fn main() -> Result<()> {
 
 // TODO: This probably needs more work for macOS. I don't know, I don't have a Mac.
 fn bundle(package: &str, mut args: Vec<String>) -> Result<()> {
+    let bundle_name = match load_bundler_config()?.and_then(|c| c.get(package).cloned()) {
+        Some(PackageConfig { name: Some(name) }) => name,
+        _ => package.to_string(),
+    };
+
     let mut is_release_build = false;
     let mut bundle_vst3 = false;
     let mut cross_compile_target: Option<String> = None;
@@ -83,7 +99,7 @@ fn bundle(package: &str, mut args: Vec<String>) -> Result<()> {
     eprintln!();
     if bundle_vst3 {
         let vst3_lib_path = Path::new("target").join(vst3_bundle_library_name(
-            package,
+            &bundle_name,
             cross_compile_target.as_deref(),
         )?);
         let vst3_bundle_home = vst3_lib_path
@@ -106,6 +122,24 @@ fn bundle(package: &str, mut args: Vec<String>) -> Result<()> {
     Ok(())
 }
 
+/// Load the `bundler.toml` file, if it exists. If it does exist but it cannot be parsed, then this
+/// will return an error.
+fn load_bundler_config() -> Result<Option<BundlerConfig>> {
+    // We're already in the project root
+    let bundler_config_path = Path::new("bundler.toml");
+    if !bundler_config_path.exists() {
+        return Ok(None);
+    }
+
+    let result = toml::from_str(
+        &fs::read_to_string(&bundler_config_path)
+            .with_context(|| format!("Could not read '{}'", bundler_config_path.display()))?,
+    )
+    .with_context(|| format!("Could not parse '{}'", bundler_config_path.display()))?;
+
+    Ok(Some(result))
+}
+
 fn target_base(cross_compile_target: Option<&str>) -> Result<&'static str> {
     match cross_compile_target {
         Some("x86_64-unknown-linux-gnu") => Ok("target/x86_64-unknown-linux-gnu"),