[pve-devel] [PATCH installer v2 3/6] low-level: stdio: fix: make progress text properly optional

[Christoph Heiss]

.. such that receivers can differentiate between these two cases more
clearly.

Sometimes, the `progress` sub does not get passed a text (on purpose!),
just updating the progress ratio. This would cause log messages to be
written out which could indicate missing text and look rather weird.

Signed-off-by: Christoph Heiss <c.heiss at proxmox.com>
---
Changes v1 -> v2:
  * no changes

 Proxmox/UI/StdIO.pm                           |  8 +++++---
 .../src/bin/proxmox-auto-installer.rs         |  6 +++++-
 proxmox-installer-common/src/setup.rs         |  2 +-
 .../src/views/install_progress.rs             | 19 +++++++++++++------
 test/ui2-stdio.pl                             |  2 +-
 5 files changed, 25 insertions(+), 12 deletions(-)

diff --git a/Proxmox/UI/StdIO.pm b/Proxmox/UI/StdIO.pm
index 2838fcb..ec9eac9 100644
--- a/Proxmox/UI/StdIO.pm
+++ b/Proxmox/UI/StdIO.pm
@@ -70,9 +70,11 @@ sub display_html {
 sub progress {
     my ($self, $ratio, $text) = @_;
 
-    $text = '' if !defined($text);
-
-    send_msg('progress', ratio => $ratio, text => $text);
+    if (defined($text)) {
+	send_msg('progress', ratio => $ratio, text => $text);
+    } else {
+	send_msg('progress', ratio => $ratio);
+    }
 }
 
 sub process_events {
diff --git a/proxmox-auto-installer/src/bin/proxmox-auto-installer.rs b/proxmox-auto-installer/src/bin/proxmox-auto-installer.rs
index 2143838..9d1dff4 100644
--- a/proxmox-auto-installer/src/bin/proxmox-auto-installer.rs
+++ b/proxmox-auto-installer/src/bin/proxmox-auto-installer.rs
@@ -205,7 +205,11 @@ fn run_installation(
                 }
                 LowLevelMessage::Progress { ratio, text } => {
                     let percentage = ratio * 100.;
-                    info!("progress {percentage:>5.1} % - {text}");
+                    if let Some(text) = text {
+                        info!("progress {percentage:>5.1} % - {text}");
+                    } else {
+                        info!("progress {percentage:>5.1} %");
+                    }
                 }
                 LowLevelMessage::Finished { state, message } => {
                     if state == "err" {
diff --git a/proxmox-installer-common/src/setup.rs b/proxmox-installer-common/src/setup.rs
index e22ce4e..4b4920e 100644
--- a/proxmox-installer-common/src/setup.rs
+++ b/proxmox-installer-common/src/setup.rs
@@ -571,6 +571,6 @@ pub enum LowLevelMessage {
     },
     Progress {
         ratio: f32,
-        text: String,
+        text: Option<String>,
     },
 }
diff --git a/proxmox-tui-installer/src/views/install_progress.rs b/proxmox-tui-installer/src/views/install_progress.rs
index 585877c..303da0e 100644
--- a/proxmox-tui-installer/src/views/install_progress.rs
+++ b/proxmox-tui-installer/src/views/install_progress.rs
@@ -127,11 +127,18 @@ impl InstallProgressView {
                     }),
                     LowLevelMessage::Progress { ratio, text } => {
                         counter.set((ratio * 100.).floor() as usize);
-                        cb_sink.send(Box::new(move |siv| {
-                            siv.call_on_name(Self::PROGRESS_TEXT_VIEW_ID, |v: &mut TextView| {
-                                v.set_content(text);
-                            });
-                        }))
+                        if let Some(text) = text {
+                            cb_sink.send(Box::new(move |siv| {
+                                siv.call_on_name(
+                                    Self::PROGRESS_TEXT_VIEW_ID,
+                                    |v: &mut TextView| {
+                                        v.set_content(text);
+                                    },
+                                );
+                            }))
+                        } else {
+                            Ok(())
+                        }
                     }
                     LowLevelMessage::Finished { state, message } => {
                         counter.set(100);
@@ -310,7 +317,7 @@ mod tests {
                 next_msg(&mut reader),
                 Some(LowLevelMessage::Progress {
                     ratio: (i as f32) / 1000.,
-                    text: format!("foo {i}"),
+                    text: Some(format!("foo {i}")),
                 }),
             );
         }
diff --git a/test/ui2-stdio.pl b/test/ui2-stdio.pl
index 01f323d..eebb5c9 100755
--- a/test/ui2-stdio.pl
+++ b/test/ui2-stdio.pl
@@ -81,7 +81,7 @@ if ($child_pid) {
 	'should get 20% done progress message');
 
     is_deeply(
-	$next_msg->(), { type => 'progress', ratio => 0.2, text => '' },
+	$next_msg->(), { type => 'progress', ratio => 0.2, },
 	'should get progress continuation message');
 
     is_deeply(
-- 
2.47.0