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denoland-deno/cli/ops/os.rs
Kevin (Kun) "Kassimo" Qian 6efca6d1a1 Add Deno.hostname() (#3032)
2019-09-27 19:09:42 -04:00

139 lines
3.5 KiB
Rust

// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
use super::dispatch_json::{Deserialize, JsonOp, Value};
use crate::colors;
use crate::fs as deno_fs;
use crate::state::ThreadSafeState;
use crate::version;
use atty;
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.
#[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 op_start(
state: &ThreadSafeState,
_args: Value,
_zero_copy: Option<PinnedBuf>,
) -> Result<JsonOp, ErrBox> {
Ok(JsonOp::Sync(json!({
"cwd": deno_fs::normalize_path(&env::current_dir().unwrap()),
"pid": std::process::id(),
"argv": state.argv,
"mainModule": state.main_module().map(|x| x.as_str().to_string()),
"debugFlag": state
.flags
.log_level
.map_or(false, |l| l == log::Level::Debug),
"versionFlag": state.flags.version,
"v8Version": version::v8(),
"denoVersion": version::DENO,
"tsVersion": version::TYPESCRIPT,
"noColor": !colors::use_color(),
"xevalDelim": state.flags.xeval_delim.clone(),
"os": BUILD_OS,
"arch": BUILD_ARCH,
})))
}
pub fn op_home_dir(
state: &ThreadSafeState,
_args: Value,
_zero_copy: Option<PinnedBuf>,
) -> Result<JsonOp, ErrBox> {
state.check_env()?;
let path = dirs::home_dir()
.unwrap_or_default()
.into_os_string()
.into_string()
.unwrap_or_default();
Ok(JsonOp::Sync(json!(path)))
}
pub fn op_exec_path(
state: &ThreadSafeState,
_args: Value,
_zero_copy: Option<PinnedBuf>,
) -> Result<JsonOp, ErrBox> {
state.check_env()?;
let current_exe = env::current_exe().unwrap();
// Now apply URL parser to current exe to get fully resolved path, otherwise
// we might get `./` and `../` bits in `exec_path`
let exe_url = Url::from_file_path(current_exe).unwrap();
let path = exe_url.to_file_path().unwrap();
Ok(JsonOp::Sync(json!(path)))
}
#[derive(Deserialize)]
struct SetEnv {
key: String,
value: String,
}
pub fn op_set_env(
state: &ThreadSafeState,
args: Value,
_zero_copy: Option<PinnedBuf>,
) -> Result<JsonOp, ErrBox> {
let args: SetEnv = serde_json::from_value(args)?;
state.check_env()?;
env::set_var(args.key, args.value);
Ok(JsonOp::Sync(json!({})))
}
pub fn op_env(
state: &ThreadSafeState,
_args: Value,
_zero_copy: Option<PinnedBuf>,
) -> Result<JsonOp, ErrBox> {
state.check_env()?;
let v = env::vars().collect::<HashMap<String, String>>();
Ok(JsonOp::Sync(json!(v)))
}
#[derive(Deserialize)]
struct Exit {
code: i32,
}
pub fn op_exit(
_s: &ThreadSafeState,
args: Value,
_zero_copy: Option<PinnedBuf>,
) -> Result<JsonOp, ErrBox> {
let args: Exit = serde_json::from_value(args)?;
std::process::exit(args.code)
}
pub fn op_is_tty(
_s: &ThreadSafeState,
_args: Value,
_zero_copy: Option<PinnedBuf>,
) -> Result<JsonOp, ErrBox> {
Ok(JsonOp::Sync(json!({
"stdin": atty::is(atty::Stream::Stdin),
"stdout": atty::is(atty::Stream::Stdout),
"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)))
}