flashrom_tester: Only print color when stdout isatty

Add the atty crate as a dependency. Print log and report in color only
when isatty is true.

BUG=b:246250254
BRANCH=None
TEST=ssh dut flashrom_tester # no color
TEST=ssh -t dut flashrom_tester # color

Change-Id: Ia3cc527fb98e53eda6773622340cf10764df2cba
Signed-off-by: Evan Benn <evanbenn@chromium.org>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/69270
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Edward O'Callaghan <quasisec@chromium.org>

1 files changed, 9 insertions, 4 deletions

diff --git a/util/flashrom_tester/src/tester.rs b/util/flashrom_tester/src/tester.rs
index 6ce3889e..323b5365 100644
--- a/util/flashrom_tester/src/tester.rs
+++ b/util/flashrom_tester/src/tester.rs
@@ -573,6 +573,11 @@ pub fn collate_all_test_runs(
 ) {
     match format {
         OutputFormat::Pretty => {
+            let color = if atty::is(atty::Stream::Stdout) {
+                types::COLOR
+            } else {
+                types::NOCOLOR
+            };
             println!();
             println!("  =============================");
             println!("  =====  AVL qual RESULTS  ====");
@@ -591,8 +596,8 @@ pub fn collate_all_test_runs(
                 if *result != TestConclusion::Pass {
                     println!(
                         " {} {}",
-                        style!(format!(" <+> {} test:", name), types::BOLD),
-                        style_dbg!(result, types::RED)
+                        style!(format!(" <+> {} test:", name), color.bold, color),
+                        style_dbg!(result, color.red, color)
                     );
                     match error {
                         None => {}
@@ -601,8 +606,8 @@ pub fn collate_all_test_runs(
                 } else {
                     println!(
                         " {} {}",
-                        style!(format!(" <+> {} test:", name), types::BOLD),
-                        style_dbg!(result, types::GREEN)
+                        style!(format!(" <+> {} test:", name), color.bold, color),
+                        style_dbg!(result, color.green, color)
                     );
                 }
             }