cmd to install code extension

.cargo/config

@@ -1,5 +1,7 @@
 [alias]
 gen-kinds = "run --package tools -- gen-kinds"
 gen-tests = "run --package tools -- gen-tests"
+install-code = "run --package tools -- install-code"
+
 render-test = "run --package cli -- render-test"
 parse = "run --package cli -- parse"

tools/Cargo.toml

@@ -11,3 +11,4 @@ itertools = "0.7.8"
 tera = "0.11"
 clap = "2.32.0"
 failure = "0.1.1"
+commandspec = "0.10"

tools/src/main.rs

@@ -5,6 +5,8 @@ extern crate ron;
 extern crate tera;
 extern crate walkdir;
 extern crate tools;
+#[macro_use]
+extern crate commandspec;
 
 use std::{collections::{HashSet, HashMap}, fs, path::Path};
 use clap::{App, Arg, SubCommand};
@@ -29,8 +31,10 @@ fn main() -> Result<()> {
         )
         .subcommand(SubCommand::with_name("gen-kinds"))
         .subcommand(SubCommand::with_name("gen-tests"))
+        .subcommand(SubCommand::with_name("install-code"))
         .get_matches();
     match matches.subcommand() {
+        ("install-code", _) => install_code_extension()?,
         (name, Some(matches)) => run_gen_command(name, matches.is_present("verify"))?,
         _ => unreachable!(),
     }
@@ -149,3 +153,19 @@ fn existing_tests(dir: &Path) -> Result<HashSet<Test>> {
     }
     Ok(res)
 }
+
+fn install_code_extension() -> Result<()> {
+    execute!(r"
+cd code
+npm install
+    ")?;
+    execute!(r"
+cd code
+./node_modules/vsce/out/vsce package
+    ")?;
+    execute!(r"
+cd code
+code --install-extension ./libsyntax-rust-0.0.1.vsix
+    ")?;
+    Ok(())
+}