1 files changed, 50 insertions, 0 deletions
diff --git a/cli/ops/runtime.rs b/cli/ops/runtime.rs
new file mode 100644
index 000000000..886326146
--- /dev/null
+++ b/cli/ops/runtime.rs
@@ -0,0 +1,50 @@
+// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
+use super::dispatch_json::{JsonOp, Value};
+use crate::colors;
+use crate::fs as deno_fs;
+use crate::ops::json_op;
+use crate::state::ThreadSafeState;
+use crate::version;
+use deno_core::*;
+use std::env;
+
+/// BUILD_OS and BUILD_ARCH match the values in Deno.build. See js/build.ts.
+#[cfg(target_os = "macos")]
+static BUILD_OS: &str = "mac";
+#[cfg(target_os = "linux")]
+static BUILD_OS: &str = "linux";
+#[cfg(target_os = "windows")]
+static BUILD_OS: &str = "win";
+#[cfg(target_arch = "x86_64")]
+static BUILD_ARCH: &str = "x64";
+
+pub fn init(i: &mut Isolate, s: &ThreadSafeState) {
+  i.register_op("start", s.core_op(json_op(s.stateful_op(op_start))));
+}
+
+fn op_start(
+  state: &ThreadSafeState,
+  _args: Value,
+  _zero_copy: Option<ZeroCopyBuf>,
+) -> Result<JsonOp, ErrBox> {
+  let gs = &state.global_state;
+  let script_args = if gs.flags.argv.len() >= 2 {
+    gs.flags.argv.clone().split_off(2)
+  } else {
+    vec![]
+  };
+  Ok(JsonOp::Sync(json!({
+    "cwd": deno_fs::normalize_path(&env::current_dir().unwrap()),
+    "pid": std::process::id(),
+    "argv": script_args,
+    "mainModule": gs.main_module.as_ref().map(|x| x.to_string()),
+    "debugFlag": gs.flags.log_level.map_or(false, |l| l == log::Level::Debug),
+    "versionFlag": gs.flags.version,
+    "v8Version": version::v8(),
+    "denoVersion": version::DENO,
+    "tsVersion": version::TYPESCRIPT,
+    "noColor": !colors::use_color(),
+    "os": BUILD_OS,
+    "arch": BUILD_ARCH,
+  })))
+}