Add global "quiet" flag (#4135)

cli/compilers/ts.rs

@@ -22,6 +22,7 @@ use deno_core::Buf;
 use deno_core::ErrBox;
 use deno_core::ModuleSpecifier;
 use futures::future::FutureExt;
+use log::info;
 use regex::Regex;
 use serde_json::json;
 use std::collections::HashMap;
@@ -373,11 +374,12 @@ impl TsCompiler {
 
     let ts_compiler = self.clone();
 
-    eprintln!(
+    info!(
       "{} {}",
       colors::green("Compile".to_string()),
       module_url.to_string()
     );
+
     let msg = execute_in_thread(global_state.clone(), req_msg).await?;
 
     let json_str = std::str::from_utf8(&msg).unwrap();

cli/file_fetcher.rs

@@ -9,9 +9,9 @@ use crate::op_error::OpError;
 use deno_core::ErrBox;
 use deno_core::ModuleSpecifier;
 use futures::future::FutureExt;
+use log::info;
 use regex::Regex;
 use reqwest;
-use std;
 use std::collections::HashMap;
 use std::fs;
 use std::future::Future;
@@ -23,7 +23,6 @@ use std::result::Result;
 use std::str;
 use std::sync::Arc;
 use std::sync::Mutex;
-use url;
 use url::Url;
 
 /// Structure representing local or remote file.
@@ -414,11 +413,12 @@ impl SourceFileFetcher {
       .boxed_local();
     }
 
-    eprintln!(
+    info!(
       "{} {}",
       colors::green("Download".to_string()),
       module_url.to_string()
     );
+
     let dir = self.clone();
     let module_url = module_url.clone();
     let module_etag = match self.http_cache.get(&module_url) {

cli/flags.rs

@@ -59,7 +59,6 @@ pub enum DenoSubcommand {
   },
   Test {
     fail_fast: bool,
-    quiet: bool,
     allow_none: bool,
     include: Option<Vec<String>>,
   },
@@ -231,6 +230,9 @@ pub fn flags_from_vec_safe(args: Vec<String>) -> clap::Result<Flags> {
       _ => unreachable!(),
     };
   }
+  if matches.is_present("quiet") {
+    flags.log_level = Some(Level::Error);
+  }
 
   if let Some(m) = matches.subcommand_matches("run") {
     run_parse(&mut flags, m);
@@ -283,6 +285,18 @@ fn clap_root<'a, 'b>() -> App<'a, 'b> {
         .possible_values(&["debug", "info"])
         .global(true),
     )
+    .arg(
+      Arg::with_name("quiet")
+        .short("q")
+        .long("quiet")
+        .help("Suppress diagnostic output")
+        .long_help(
+          "Suppress diagnostic output
+By default, subcommands print human-readable diagnostic messages to stderr.
+If the flag is set, restrict these messages to errors.",
+        )
+        .global(true),
+    )
     .subcommand(bundle_subcommand())
     .subcommand(completions_subcommand())
     .subcommand(eval_subcommand())
@@ -505,7 +519,6 @@ fn test_parse(flags: &mut Flags, matches: &clap::ArgMatches) {
 
   run_test_args_parse(flags, matches);
 
-  let quiet = matches.is_present("quiet");
   let failfast = matches.is_present("failfast");
   let allow_none = matches.is_present("allow_none");
 
@@ -521,7 +534,6 @@ fn test_parse(flags: &mut Flags, matches: &clap::ArgMatches) {
   };
 
   flags.subcommand = DenoSubcommand::Test {
-    quiet,
     fail_fast: failfast,
     include,
     allow_none,
@@ -866,13 +878,6 @@ fn test_subcommand<'a, 'b>() -> App<'a, 'b> {
         .help("Stop on first error")
         .takes_value(false),
     )
-    .arg(
-      Arg::with_name("quiet")
-        .short("q")
-        .long("quiet")
-        .help("Don't show output from test cases")
-        .takes_value(false),
-    )
     .arg(
       Arg::with_name("allow_none")
         .long("allow-none")
@@ -1947,6 +1952,21 @@ mod tests {
     );
   }
 
+  #[test]
+  fn quiet() {
+    let r = flags_from_vec_safe(svec!["deno", "-q", "script.ts"]);
+    assert_eq!(
+      r.unwrap(),
+      Flags {
+        subcommand: DenoSubcommand::Run {
+          script: "script.ts".to_string(),
+        },
+        log_level: Some(Level::Error),
+        ..Flags::default()
+      }
+    );
+  }
+
   #[test]
   fn completions() {
     let r = flags_from_vec_safe(svec!["deno", "completions", "bash"]).unwrap();
@@ -2109,7 +2129,6 @@ mod tests {
       Flags {
         subcommand: DenoSubcommand::Test {
           fail_fast: false,
-          quiet: false,
           allow_none: true,
           include: Some(svec!["dir1/", "dir2/"]),
         },

cli/lib.rs

@@ -81,6 +81,7 @@ use url::Url;
 
 static LOGGER: Logger = Logger;
 
+// TODO(ry) Switch to env_logger or other standard crate.
 struct Logger;
 
 impl log::Log for Logger {
@@ -97,7 +98,11 @@ impl log::Log for Logger {
         target.push_str(&line_no.to_string());
       }
 
-      println!("{} RS - {} - {}", record.level(), target, record.args());
+      if record.level() >= Level::Info {
+        eprintln!("{}", record.args());
+      } else {
+        eprintln!("{} RS - {} - {}", record.level(), target, record.args());
+      }
     }
   }
   fn flush(&self) {}
@@ -372,7 +377,6 @@ async fn test_command(
   flags: Flags,
   include: Option<Vec<String>>,
   fail_fast: bool,
-  _quiet: bool,
   allow_none: bool,
 ) -> Result<(), ErrBox> {
   let global_state = GlobalState::new(flags.clone())?;
@@ -427,7 +431,7 @@ pub fn main() {
 
   let log_level = match flags.log_level {
     Some(level) => level,
-    None => Level::Warn,
+    None => Level::Info, // Default log level
   };
   log::set_max_level(log_level.to_level_filter());
 
@@ -458,13 +462,10 @@ pub fn main() {
     DenoSubcommand::Repl => run_repl(flags).boxed_local(),
     DenoSubcommand::Run { script } => run_command(flags, script).boxed_local(),
     DenoSubcommand::Test {
-      quiet,
       fail_fast,
       include,
       allow_none,
-    } => {
-      test_command(flags, include, fail_fast, quiet, allow_none).boxed_local()
-    }
+    } => test_command(flags, include, fail_fast, allow_none).boxed_local(),
     DenoSubcommand::Completions { buf } => {
       print!("{}", std::str::from_utf8(&buf).unwrap());
       return;

cli/permissions.rs

@@ -4,7 +4,6 @@ use crate::flags::Flags;
 use crate::op_error::OpError;
 #[cfg(not(test))]
 use atty;
-use log;
 use std::collections::HashSet;
 use std::fmt;
 #[cfg(not(test))]
@@ -349,12 +348,10 @@ fn permission_prompt(_message: &str) -> bool {
 }
 
 fn log_perm_access(message: &str) {
-  if log_enabled!(log::Level::Info) {
-    eprintln!(
-      "{}",
-      colors::bold(format!("{}️  Granted {}", PERMISSION_EMOJI, message))
-    );
-  }
+  debug!(
+    "{}",
+    colors::bold(format!("{}️  Granted {}", PERMISSION_EMOJI, message))
+  );
 }
 
 fn check_path_white_list(path: &Path, white_list: &HashSet<PathBuf>) -> bool {