switch colored to owo-colors

Cargo.toml

@@ -13,7 +13,7 @@ doctest = false # but no doc tests
 
 [dependencies]
 rustc_version = "0.4"
-colored = "2"
+owo-colors = "3.5"
 lazy_static = "1.4.0"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
@@ -29,6 +29,8 @@ prettydiff = { version = "0.7", default_features = false }
 annotate-snippets = { version = "0.11.2" }
 levenshtein = "1.0.5"
 spanned = "0.2.1"
+supports-color = "3.0"
+anstream = { version = "0.6", default-features = false, features = ["auto"]}
 
 [dependencies.regex]
 version = "1.5.5"

src/diff.rs

@@ -1,4 +1,5 @@
-use colored::*;
+use anstream::{print, println};
+use owo_colors::OwoColorize as _;
 use prettydiff::{basic::DiffOp, basic::DiffOp::*, diff_lines, diff_words};
 
 /// How many lines of context are displayed around the actual diffs
@@ -52,10 +53,12 @@ fn row(row: DiffOp<'_, &str>) {
 }
 
 fn print_line_diff(l: &str, r: &str) {
+    use supports_color::Stream;
+
     let diff = diff_words(l, r);
     let diff = diff.diff();
     if has_both_insertions_and_deletions(&diff)
-        || !colored::control::SHOULD_COLORIZE.should_colorize()
+        || !supports_color::on_cached(Stream::Stdout).map_or(false, |support| support.has_basic)
     {
         // The line both adds and removes chars, print both lines, but highlight their differences instead of
         // drawing the entire line in red/green.

src/status_emitter.rs

@@ -1,10 +1,11 @@
 //! Variaous schemes for reporting messages during testing or after testing is done.
 
 use annotate_snippets::{Renderer, Snippet};
+use anstream::{print, println};
 use bstr::ByteSlice;
-use colored::Colorize;
 use crossbeam_channel::{Sender, TryRecvError};
 use indicatif::{MultiProgress, ProgressBar, ProgressDrawTarget, ProgressStyle};
+use owo_colors::OwoColorize as _;
 use spanned::Span;
 
 use crate::{
@@ -314,13 +315,12 @@ impl TestStatus for TextTest {
             self.text.sender.send(Msg::Inc).unwrap();
             self.text.sender.send(Msg::Pop(self.msg(), None)).unwrap();
         } else {
-            let result = match result {
-                Ok(TestOk::Ok) => "ok".green(),
-                Err(Errored { .. }) => "FAILED".bright_red().bold(),
-                Ok(TestOk::Ignored) => "ignored (in-test comment)".yellow(),
-            };
             let old_msg = self.msg();
-            let msg = format!("... {result}");
+            let msg = match result {
+                Ok(TestOk::Ok) => format!("... {}", "ok".green()),
+                Err(Errored { .. }) => format!("... {}", "FAILED".bright_red().bold()),
+                Ok(TestOk::Ignored) => format!("... {}", "ignored (in-test comment)".yellow()),
+            };
             if ProgressDrawTarget::stdout().is_hidden() {
                 println!("{old_msg} {msg}");
                 std::io::stdout().flush().unwrap();
@@ -714,6 +714,8 @@ fn create_error(
     lines: &[(&[(&str, Option<Span>)], NonZeroUsize)],
     file: &Path,
 ) {
+    use supports_color::Stream;
+
     let source = std::fs::read_to_string(file).unwrap();
     let source: Vec<_> = source.split_inclusive('\n').collect();
     let file = file.display().to_string();
@@ -753,11 +755,12 @@ fn create_error(
             }));
         msg = msg.snippet(snippet);
     }
-    let renderer = if colored::control::SHOULD_COLORIZE.should_colorize() {
-        Renderer::styled()
-    } else {
-        Renderer::plain()
-    };
+    let renderer =
+        if supports_color::on_cached(Stream::Stdout).map_or(false, |support| support.has_basic) {
+            Renderer::styled()
+        } else {
+            Renderer::plain()
+        };
     println!("{}", renderer.render(msg));
 }