From f709f9f37ebb67946d5491ef697dac08389c24fc Mon Sep 17 00:00:00 2001
From: cdellacqua <carlo.dellacqua97@gmail.com>
Date: Thu, 7 Nov 2024 23:13:55 +0100
Subject: [PATCH 1/2] feat: allow constructing and setting the progress bar len
 to `None`

---
 src/progress_bar.rs | 17 +++++++++++++++++
 src/state.rs        |  5 +++++
 2 files changed, 22 insertions(+)

diff --git a/src/progress_bar.rs b/src/progress_bar.rs
index fec1fd76..02600b1c 100644
--- a/src/progress_bar.rs
+++ b/src/progress_bar.rs
@@ -47,6 +47,18 @@ impl ProgressBar {
         Self::with_draw_target(Some(len), ProgressDrawTarget::stderr())
     }
 
+    /// Creates a new progress bar without a specified length
+    ///
+    /// This progress bar by default draws directly to stderr, and refreshes a maximum of 20 times
+    /// a second. To change the refresh rate, [set] the [draw target] to one with a different refresh
+    /// rate.
+    ///
+    /// [set]: ProgressBar::set_draw_target
+    /// [draw target]: ProgressDrawTarget
+    pub fn empty() -> Self {
+        Self::with_draw_target(None, ProgressDrawTarget::stderr())
+    }
+
     /// Creates a completely hidden progress bar
     ///
     /// This progress bar still responds to API changes but it does not have a length or render in
@@ -263,6 +275,11 @@ impl ProgressBar {
         }
     }
 
+    /// Sets the length of the progress bar to `None`
+    pub fn unset_length(&self) {
+        self.state().unset_length(Instant::now());
+    }
+
     /// Sets the length of the progress bar
     pub fn set_length(&self, len: u64) {
         self.state().set_length(Instant::now(), len);
diff --git a/src/state.rs b/src/state.rs
index 136e2307..2f9100e2 100644
--- a/src/state.rs
+++ b/src/state.rs
@@ -96,6 +96,11 @@ impl BarState {
         }
     }
 
+    pub(crate) fn unset_length(&mut self, now: Instant) {
+        self.state.len = None;
+        self.update_estimate_and_draw(now);
+    }
+
     pub(crate) fn set_length(&mut self, now: Instant, len: u64) {
         self.state.len = Some(len);
         self.update_estimate_and_draw(now);

From 836e3dd388dde92d2e4c1c7dfb177b8f329e6fb3 Mon Sep 17 00:00:00 2001
From: cdellacqua <carlo.dellacqua97@gmail.com>
Date: Tue, 12 Nov 2024 14:00:07 +0100
Subject: [PATCH 2/2] refactor: rename ProgressBar::empty to
 ProgressBar::no_length

---
 src/progress_bar.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/progress_bar.rs b/src/progress_bar.rs
index 02600b1c..0c850e05 100644
--- a/src/progress_bar.rs
+++ b/src/progress_bar.rs
@@ -55,7 +55,7 @@ impl ProgressBar {
     ///
     /// [set]: ProgressBar::set_draw_target
     /// [draw target]: ProgressDrawTarget
-    pub fn empty() -> Self {
+    pub fn no_length() -> Self {
         Self::with_draw_target(None, ProgressDrawTarget::stderr())
     }