github spectreconsole/spectre.console 0.55.0
on GitHub

latest releases: 0.57.2, 0.57.1, 0.57.0...
pre-release3 months ago

This release brings new features, performance improvements, bug fixes, and some important architectural changes.

Caution

There are breaking changes in this release, so make sure you review the release notes and try things out before upgrading in production.

New Spectre.Console.Ansi Library

One of the biggest changes in this release is the introduction of
Spectre.Console.Ansi,
a new standalone library for writing ANSI escape
sequences to the terminal without taking a full dependency on Spectre.Console.

This makes it easy to add ANSI support to lightweight tools and libraries where
pulling in the full Spectre.Console package would be overkill. Spectre.Console
itself now depends on this library internally.

We've also added some nice convenience methods for the .NET Console class: 

using Spectre.Console.Ansi;

Console.Markup("[yellow]Hello[/] ");
Console.MarkupLine("[blue]World[/]");
  
Console.Ansi(writer => writer
    .BeginLink("https://spectreconsole.net", linkId: 123)
    .Decoration(Decoration.Bold | Decoration.Italic)
    .Foreground(Color.Yellow)
    .Write("Spectre Console")
    .ResetStyle()
    .EndLink());

Style Is Now a Struct

Style has been converted from a class to a struct, and link/URL information
has been extracted into a separate Link type. This improves allocation
performance, especially in rendering-heavy scenarios, but is a breaking change
for code that relies on reference semantics.

Progress Improvements

The Progress widget received a lot of love in this release. It now uses
TimeProvider instead of the wall clock, making it significantly easier to
write deterministic tests. ProgressTask has a new Tag property for attaching
arbitrary metadata, and you can now override the global hide-when-completed
behavior on individual tasks. Tasks can also be removed from the progress
context entirely.

Speed calculations have been improved with configurable max sampling age and
sample count, giving you more control over how responsive or smooth the speed
readout is. Speed calculations for stopped tasks have been fixed, and
indeterminate tasks no longer show a meaningless time estimate.

Prompt Enhancements

Prompts now accept a CancellationToken, making it possible to cancel a waiting
prompt programmatically. TextPrompt default values can now be edited by the
user instead of being accepted or rejected as a whole. There is also a new
option to clear the prompt line after the user provides input.

Tables and Rendering

Table body rows now support column spans, and a new minimal border style has
been added for a cleaner look. The Canvas widget gained half-block support,
which enables double the vertical resolution when rendering graphics. JsonText
now has a configurable indentation depth. Various performance improvements have
also been made to Markup instantiation and formatting.

Bug Fixes

A memory leak related to Segment has been fixed, along with
Segment.SplitLines ignoring multiple consecutive line breaks. A crash in
SegmentShape.Calculate when the lines list was empty has been resolved.
Interactive console detection when output is redirected now works correctly,
and table expand now properly respects fixed column widths. Truncation and
overflow handling for fullwidth characters has been corrected, and locking
performance on .NET 9.0+ has been improved.

Breaking Changes

This release contains several breaking changes. Please review the following
before upgrading.

Style is now a struct. Code relying on reference semantics such as null
checks or reference equality will need to be updated. Related to this, link
and URL information has moved from Style to a new Link type, so any code
that reads or writes links through Style will need to be adjusted.

Several previously obsoleted members have been removed. The Alignment property
on Calendar, Table, and Grid, as well as the Render extension method,
no longer exist. AnsiConsoleFactory has been made static and internal, so code
that instantiated this class directly will need an alternative approach.

Finally, ANSI output is now disabled when stdout or stderr is redirected. This
is a behavior change: output that previously included ANSI escape codes when
piped or redirected will now be plain text.

What's Changed

New Contributors

Full Changelog: 0.54.0...0.55.0

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