Add a basic noise level implementation.

hooked-cli/source/cli/run.rs

@@ -5,34 +5,29 @@ use std::{io::Read, process::exit};
 use {
   color_eyre::{eyre::eyre, Result},
   hooked_config::{Config, ExitAction},
-  owo_colors::{OwoColorize, Style},
+  owo_colors::OwoColorize,
   subprocess::{Exec, Redirection},
-  supports_color::Stream,
 };
 
-use crate::utilities::{globset_from_strings, plural};
+use crate::{
+  printer::{print, PrintType, PRINT_STYLE},
+  utilities::{globset_from_strings, plural},
+};
 
 /// The `run` subcommand.
 pub fn hooked_run(config: Config, hook_type: String) -> Result<()> {
-  let (success_style, warn_style, error_style, skipped_style) =
+  let global_noise_level = &config.general.noise_level;
-    if let Some(_support) = supports_color::on(Stream::Stdout) {
-      let shared_style = Style::new().bold();
-      (
-        shared_style.green(),
-        shared_style.yellow(),
-        shared_style.red(),
-        shared_style.blue(),
-      )
-    } else {
-      (Style::new(), Style::new(), Style::new(), Style::new())
-    };
 
   if hook_type == "pre-commit" {
     let hook_count = config.pre_commit.len();
-    println!(
+    print(
+      format!(
         "Hooked: Running {} pre-commit {}.",
         hook_count,
         plural(hook_count, "hook", None)
+      ),
+      &config.general.noise_level,
+      PrintType::Info,
     );
 
     'hook_loop: for hook in config.pre_commit {
@@ -46,10 +41,14 @@ pub fn hooked_run(config: Config, hook_type: String) -> Result<()> {
           .capture()?
           .stdout_str();
         if !staged_files.lines().any(|line| globs.is_match(line)) {
-          println!(
+          print(
+            format!(
               "\t{} {}",
-            "≫".style(skipped_style),
+              "≫".style(PRINT_STYLE.skipped),
-            hook_name.style(skipped_style)
+              hook_name.style(PRINT_STYLE.skipped)
+            ),
+            global_noise_level,
+            PrintType::Info,
           );
           continue 'hook_loop;
         }
@@ -84,16 +83,28 @@ pub fn hooked_run(config: Config, hook_type: String) -> Result<()> {
         output
       };
 
-      let (stop, print_output, prefix, style) =
+      let (stop, print_output, prefix, style, print_type) =
         match (exit_status.success(), hook.on_failure) {
-          (true, _) => (false, false, "✓", success_style),
+          (true, _) => {
-          (false, ExitAction::Continue) => (false, true, "⚠", warn_style),
+            (false, false, "✓", PRINT_STYLE.success, PrintType::Info)
-          (false, ExitAction::Stop) => (true, true, "✗", error_style),
+          }
+          (false, ExitAction::Continue) => {
+            (false, true, "⚠", PRINT_STYLE.warn, PrintType::Warn)
+          }
+          (false, ExitAction::Stop) => {
+            (true, true, "✗", PRINT_STYLE.error, PrintType::Error)
+          }
         };
 
-      println!("\t{} {}", prefix.style(style), hook_name.style(style));
+      let hook_noise_level =
+        hook.noise_level.as_ref().unwrap_or(global_noise_level);
+      print(
+        format!("\t{} {}", prefix.style(style), hook_name.style(style)),
+        hook_noise_level,
+        print_type,
+      );
       if !output.is_empty() && print_output {
-        println!("{}", output);
+        print(output, hook_noise_level, PrintType::Info);
       }
 
       if stop {

hooked-cli/source/main.rs

@@ -17,6 +17,7 @@ pub const DEFAULT_TEMPLATE: &str = include_str!("templates/default.sh");
 pub const HOOK_TYPES: [&str; 1] = ["pre-commit"];
 
 mod cli;
+mod printer;
 mod utilities;
 
 fn main() -> Result<()> {

hooked-cli/source/printer.rs

@@ -0,0 +1,76 @@
+//! Shared logic for printing output to the terminal.
+
+use {
+  hooked_config::NoiseLevel, lazy_static::lazy_static, owo_colors::Style,
+  std::fmt::Display, supports_color::Stream,
+};
+
+/// The available types to print output as.
+#[derive(Debug, Eq, PartialEq)]
+pub enum PrintType {
+  /// Print the output as an error line.
+  Error,
+  /// Print the output as a warning line.
+  Warn,
+  /// Print the output as an information line.
+  Info,
+}
+
+/// The available print styles for colorized output.
+#[derive(Debug)]
+pub struct PrintStyles {
+  /// The style for errored hooks output.
+  pub error: Style,
+  /// The style for skipped hooks output.
+  pub skipped: Style,
+  /// The style for succesful hooks output.
+  pub success: Style,
+  /// The style for hooks with warnings.
+  pub warn: Style,
+}
+
+lazy_static! {
+  pub static ref PRINT_STYLE: PrintStyles = {
+    let (success_style, warn_style, error_style, skipped_style) =
+      if let Some(_support) = supports_color::on(Stream::Stdout) {
+        let shared_style = Style::new().bold();
+        (
+          shared_style.green(),
+          shared_style.yellow(),
+          shared_style.red(),
+          shared_style.blue(),
+        )
+      } else {
+        (Style::new(), Style::new(), Style::new(), Style::new())
+      };
+
+    PrintStyles {
+      error: error_style,
+      skipped: skipped_style,
+      success: success_style,
+      warn: warn_style,
+    }
+  };
+}
+
+/// Print something to the terminal according to a given [`NoiseLevel`] and
+/// [`PrintType`].
+pub fn print<D: Display>(
+  something: D,
+  noise_level: &NoiseLevel,
+  print_type: PrintType,
+) {
+  let should_print = match (noise_level, print_type) {
+    // Only output errors under the quiet noise level.
+    (NoiseLevel::Quiet, PrintType::Error) => true,
+    (NoiseLevel::Quiet, _) => false,
+    // Output everything under loud.
+    (NoiseLevel::Loud | NoiseLevel::Standard | NoiseLevel::Minimal, _) => true,
+  };
+
+  if !should_print {
+    return;
+  }
+
+  println!("{something}")
+}