xtask: add prep-lsp command to replace copy-lsp and `copy-lsp-rel…

…ease`

xtask/src/cli.rs

@@ -11,10 +11,15 @@ pub struct Cli {
 
 #[derive(Subcommand)]
 pub enum Commands {
-    /// Copy debug build of the LSP server to the VSCode client
-    CopyLsp,
-    /// Copy release build of the LSP server to the VSCode client
-    CopyLspRelease,
+    // Build and copy LSP server into VSCode's extension directory
+    PrepLsp {
+        /// Should LSP be built with optimised release profile
+        #[arg(long)]
+        release: bool,
+        /// Compilation target triple
+        #[arg(long)]
+        target: Option<String>
+    },
     /// Build and package VSCode extension into a .vsix file
     Package {
         /// Output directory for the .vsix file; default is the current working directory

xtask/src/commands/mod.rs

@@ -1,9 +1,7 @@
-mod copy_lsp;
-mod copy_lsp_release;
+mod prep_lsp;
 mod package;
 mod install;
 
-pub use copy_lsp::copy_lsp;
-pub use copy_lsp_release::copy_lsp_release;
+pub use prep_lsp::prep_lsp;
 pub use package::package;
 pub use install::install;

xtask/src/commands/prep_lsp.rs

@@ -0,0 +1,42 @@
+use std::path::PathBuf;
+use xshell::{Shell, cmd};
+
+
+const LSP_DST: &str = "./editors/vscode/server/bin";
+
+pub fn prep_lsp(release: bool, target: Option<String>) -> anyhow::Result<()> {
+    let sh = Shell::new()?;
+
+    let mut build = cmd!(sh, "cargo build --package witcherscript-lsp");
+
+    let mut lsp_src = PathBuf::from("./target");
+    if let Some(target) = target {
+        build = build.arg("--target").arg(&target);
+        lsp_src.push(target);
+    }
+
+    if release {
+        build = build.arg("--release");
+        lsp_src.push("release");
+    } else {
+        lsp_src.push("debug");
+    }
+
+    lsp_src.push("witcherscript-lsp");
+
+    if cfg!(windows) {
+        lsp_src.set_extension("exe");
+    }
+
+    println!("Building the LSP...");
+    build.run()?;
+
+
+    // make sure destination folder exists
+    sh.create_dir(LSP_DST)?;
+
+    sh.copy_file(lsp_src, LSP_DST)?;
+    println!("Copied LSP into {}", LSP_DST);
+
+    Ok(())
+}

xtask/src/main.rs

@@ -9,8 +9,7 @@ fn main() -> anyhow::Result<()> {
     let cli = Cli::parse();
 
     match cli.command {
-        cli::Commands::CopyLsp => commands::copy_lsp(),
-        cli::Commands::CopyLspRelease => commands::copy_lsp_release(),
+        cli::Commands::PrepLsp { release, target } => commands::prep_lsp(release, target),
         cli::Commands::Package { out_dir } => commands::package(out_dir),
         cli::Commands::Install => commands::install()
     }