From 6efca6d1a17638136eadf39644f392f9107a4a6c Mon Sep 17 00:00:00 2001
From: "Kevin (Kun) \"Kassimo\" Qian" <kevinkassimo@gmail.com>
Date: Fri, 27 Sep 2019 16:09:42 -0700
Subject: Add Deno.hostname() (#3032)

---
 cli/ops/mod.rs |  4 ++++
 cli/ops/os.rs  | 11 +++++++++++
 2 files changed, 15 insertions(+)

(limited to 'cli/ops')

diff --git a/cli/ops/mod.rs b/cli/ops/mod.rs
index ea71fee9f..ab318438f 100644
--- a/cli/ops/mod.rs
+++ b/cli/ops/mod.rs
@@ -83,6 +83,7 @@ pub const OP_MAKE_TEMP_DIR: OpId = 55;
 pub const OP_CWD: OpId = 56;
 pub const OP_FETCH_ASSET: OpId = 57;
 pub const OP_DIAL_TLS: OpId = 58;
+pub const OP_HOSTNAME: OpId = 59;
 
 pub fn dispatch(
   state: &ThreadSafeState,
@@ -305,6 +306,9 @@ pub fn dispatch(
     OP_DIAL_TLS => {
       dispatch_json::dispatch(tls::op_dial_tls, state, control, zero_copy)
     }
+    OP_HOSTNAME => {
+      dispatch_json::dispatch(os::op_hostname, state, control, zero_copy)
+    }
     _ => panic!("bad op_id"),
   };
 
diff --git a/cli/ops/os.rs b/cli/ops/os.rs
index d033dc9c3..770af404c 100644
--- a/cli/ops/os.rs
+++ b/cli/ops/os.rs
@@ -9,6 +9,7 @@ use deno::*;
 use log;
 use std::collections::HashMap;
 use std::env;
+use sys_info;
 use url::Url;
 
 /// BUILD_OS and BUILD_ARCH match the values in Deno.build. See js/build.ts.
@@ -126,3 +127,13 @@ pub fn op_is_tty(
     "stderr": atty::is(atty::Stream::Stderr),
   })))
 }
+
+pub fn op_hostname(
+  state: &ThreadSafeState,
+  _args: Value,
+  _zero_copy: Option<PinnedBuf>,
+) -> Result<JsonOp, ErrBox> {
+  state.check_env()?;
+  let hostname = sys_info::hostname().unwrap_or_else(|_| "".to_owned());
+  Ok(JsonOp::Sync(json!(hostname)))
+}
-- 
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