Added --logging-level arg

dsc/src/args.rs

@@ -3,6 +3,7 @@
 
 use clap::{Parser, Subcommand, ValueEnum};
 use clap_complete::Shell;
+use crate::util::LogLevel;
 
 #[derive(Debug, Clone, PartialEq, Eq, ValueEnum)]
 pub enum OutputFormat {
@@ -24,6 +25,8 @@ pub struct Args {
     pub input: Option<String>,
     #[clap(short = 'p', long, help = "The path to a file used as input to the configuration or resource")]
     pub input_file: Option<String>,
+    #[clap(short = 'l', long = "logging-level", help = "Log level to display", value_enum, default_value = "info")]
+    pub logging_level: LogLevel,
 }
 
 #[derive(Debug, PartialEq, Eq, Subcommand)]

dsc/src/main.rs

@@ -8,7 +8,7 @@ use clap_complete::generate;
 use std::io::{self, Read};
 use std::process::exit;
 use sysinfo::{Process, ProcessExt, RefreshKind, System, SystemExt, get_current_pid, ProcessRefreshKind};
-use tracing::{error, info, warn};
+use tracing::{Level, error, info, warn};
 
 #[cfg(debug_assertions)]
 use crossterm::event;
@@ -25,18 +25,26 @@ fn main() {
     #[cfg(debug_assertions)]
     check_debug();
 
-    // create subscriber that writes all events to stderr
-    let subscriber = tracing_subscriber::fmt().pretty().with_writer(std::io::stderr).finish();
-    if tracing::subscriber::set_global_default(subscriber).is_err() {
-        eprintln!("Unable to set global default subscriber");
-    }
-
     if ctrlc::set_handler(ctrlc_handler).is_err() {
         error!("Error: Failed to set Ctrl-C handler");
     }
 
     let args = Args::parse();
 
+    let tracing_level = match args.logging_level {
+        util::LogLevel::Error => Level::ERROR,
+        util::LogLevel::Warning => Level::WARN,
+        util::LogLevel::Info => Level::INFO,
+        util::LogLevel::Debug => Level::DEBUG,
+        util::LogLevel::Trace => Level::TRACE,
+    };
+
+    // create subscriber that writes all events to stderr
+    let subscriber = tracing_subscriber::fmt().pretty().with_max_level(tracing_level).with_writer(std::io::stderr).finish();
+    if tracing::subscriber::set_global_default(subscriber).is_err() {
+        eprintln!("Unable to set global default subscriber");
+    }
+
     let input = if args.input.is_some() {
         args.input
     } else if args.input_file.is_some() {

dsc/src/util.rs

@@ -35,6 +35,16 @@ pub const EXIT_INVALID_INPUT: i32 = 4;
 pub const EXIT_VALIDATION_FAILED: i32 = 5;
 pub const EXIT_CTRL_C: i32 = 6;
 
+#[derive(Debug)]
+#[derive(clap::ValueEnum, Clone)]
+pub enum LogLevel {
+   Error,
+   Warning,
+   Info,
+   Debug,
+   Trace
+}
+
 /// Get string representation of JSON value.
 ///
 /// # Arguments

dsc/tests/dsc_args.tests.ps1

@@ -147,4 +147,9 @@ resources:
         $LASTEXITCODE | Should -Be 2
     }
 
+    It '--logging-level has effect' {
+        dsc -l debug resource get -r Microsoft/OSInfo 2> $TestDrive/tracing.txt
+        "$TestDrive/tracing.txt" | Should -FileContentMatchExactly 'DEBUG'
+        $LASTEXITCODE | Should -Be 0
+    }
 }