cli/list-keybinds: add pretty printing

[rockorager]

Add pretty printing to the +list-keybinds command. This is done by
bringing in a dependency on libvaxis to handle the styling. Pretty
printing happens automatically when printing to a tty, and can be
disabled either by redirecting output or using the flag --plain

Fixes #2048

[rockorager]

This is fully functional, but the alignment could use some work I think - we need some consensus on how these should be aligned for best viewing experience.

[rockorager]

The current output looks like this:

[deviantsemicolon]

The current output looks like this:

I'm satisfied with this. The alignment could definitely use some work though. But good job :)

[kareigu]

Running this on my mac breaks the terminal output completely afterwards

Exception is running +list-keybinds again that works like normal but everything else is broken

[rockorager]

Doh! Forgot to deinit. Should be fixed now

[kareigu]

For the alignment, maybe keeping everything else the same but pushing all of the action names to be at the same alignment.

Here I set them to be longest_encountered_col + widest_key + 2.

Looks a lot better with them not jumping around imo, and it's really trivial to implement since you already sorted them based on modifier count.

[rockorager]

That looks much better! Can you push a commit to this PR?

[kareigu]

I can't access your fork so probably not.

Here's the patch however:

From 8960b54f81d62810cf6f0991f617416870b6a847 Mon Sep 17 00:00:00 2001
From: karei <mail@karei.dev>
Date: Tue, 6 Aug 2024 22:06:19 +0300
Subject: cli/list-keybinds: align actions at the same column

---
 src/cli/list_keybinds.zig | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/cli/list_keybinds.zig b/src/cli/list_keybinds.zig
index 8abd6b0c..e40d9e3a 100644
--- a/src/cli/list_keybinds.zig
+++ b/src/cli/list_keybinds.zig
@@ -123,6 +123,8 @@ fn prettyPrint(alloc: Allocator, keybinds: Config.Keybinds) !u8 {
     const alt_style: vaxis.Style = .{ .fg = .{ .index = 3 } };
     const shift_style: vaxis.Style = .{ .fg = .{ .index = 4 } };
 
+    var longest_col: usize = 0;
+
     // Print the list
     for (bindings.items) |bind| {
         win.clear();
@@ -155,6 +157,8 @@ fn prettyPrint(alloc: Allocator, keybinds: Config.Keybinds) !u8 {
         // nice alignment no matter what was printed for mods
         _ = try win.printSegment(.{ .text = key }, .{ .col_offset = result.col });
 
+        if (longest_col < result.col) longest_col = result.col;
+
         const action = try std.fmt.allocPrint(alloc, "{}", .{bind.action});
         // If our action has an argument, we print the argument in a different color
         if (std.mem.indexOfScalar(u8, action, ':')) |idx| {
@@ -162,9 +166,9 @@ fn prettyPrint(alloc: Allocator, keybinds: Config.Keybinds) !u8 {
                 .{ .text = action[0..idx] },
                 .{ .text = action[idx .. idx + 1], .style = .{ .dim = true } },
                 .{ .text = action[idx + 1 ..], .style = .{ .fg = .{ .index = 5 } } },
-            }, .{ .col_offset = result.col + widest_key + 2 });
+            }, .{ .col_offset = longest_col + widest_key + 2 });
         } else {
-            _ = try win.printSegment(.{ .text = action }, .{ .col_offset = result.col + widest_key + 2 });
+            _ = try win.printSegment(.{ .text = action }, .{ .col_offset = longest_col + widest_key + 2 });
         }
         try vx.prettyPrint(writer);
     }
-- 
2.46.0