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Changelog

4.1.0

  • Updated shell completion commands names
  • Use PathBuf instead of String for file paths
  • Added miette for prettier error messages

4.0.0

Overview

This release contains several new feature and breaking changes. From a user perspective, the most notable change is the addition of a JSON highlighter. From a developer's perspective, the highlighting engine powering tailspin has been decoupled and extracted into a separate library called manifold.

manifold will still be used internally by tailspin, but it will also be available as a standalone library for other projects to use.

New features:

  • Added support for handling lines which are valid JSON. tailspin will recognize if the line is a valid JSON object and highlight it accordingly.
  • Added date and time highlighter for formats like DD/MM/YYYY

Breaking changes:

  • tailspin will now look for theme.toml instead of config.toml for the configuration file
  • Enabling and disabling highlight groups is now done from the command line instead of in the toml file
  • Removed the border from the style from the keyword styling. Instead, the border will be enabled implicitly by setting a background color for the keyword.
  • Removed date highlighting for formats like Aug 14 and Sun Dec 14 etc. (Can be re-enabled by adding a custom regex highlighter)
  • One highlighting group for both date and time

3.0.2

  • Add completion hint so shells understand they can complete with file names (Thanks @alerque !)

3.0.1

  • Improve parsing of very large log files

3.0.0

Overview

In November 2023, tailspin had 240 stars and was only available to downloads on Crates.io and Debian. At the time of writing this, it sits at over 4k stars and is available on most major Linux distributions, macOS and Windows.

I am glad to see that tailspin has been useful to so many people.

For version 3.0.0 there are both new features and breaking changes.

New features:

  • UUID highlighter now highlights numbers and letters in individual styling
  • Process highlighter has updated default styling and matches processes with parenthesis
  • Added a new highlighter 32-bit and 64-bit pointers (e.g. 0x7f8c8c0c0c0c)
  • Added a IPv6 highlighter (e.g. 2001:0db8:85a3:0000:0000:8a2e:0370:7334)
  • Dates formatted as yyyy/mm/dd and Day Month DD are now highlighted

Breaking changes:

Renamed --follow-command to --listen-command

The --follow-command flag has been renamed to --listen-command to avoid confusion with the --tail flag.

Removed --bucket-size flag

The --bucket-size flag has been removed. The bucket size was ultimately an implementation detail that should be set by the program itself.

Removed shorten-to flag option for dates and times

The shorten-to option for dates and times has been removed. The option, set in config.toml, let the user shorten the date and time to a configurable token.

In order to keep up with the growth of tailspin, I've decided to focus on the core of what tailspin is doing, namely highlighting. This meant that I had to remove some features that were not directly related to highlighting.

Apologizes for removing this feature and to those who are using it.

2.4.0

  • Added a regexp highlighter with support for one capture group
  • Changed the behavior of processing lines from stdin to be sequential for better stability

2.3.0

  • tailspin now uses multiple threads to process lines in parallel
  • Added --bucket-size flag to configure the number of lines to process in parallel
  • Changed -t,--tail flag to -e,--start-at-end to avoid confusion with tail -f

2.2.0

  • Added flags for setting simple highlights on the fly, for example: (tspin --words-red popcorn,movie)
  • Properly flatten and merge keywords to improve regex performance
  • Binaries are now added to the GitHub Release (Thanks @ecarrara and @supleed2)
  • Added HEAD HTTP method to the REST keywords (Thanks @mkogan1)
  • Fixed a bug where the message Failed to open file with less: Exit code 0 would show after exiting less

2.1.0

  • Fixed a bug where opening empty files would hang forever
  • Look for config file in USERPROFILE and $HOME instead of just $HOME
  • Added flags for disabling builtin keywords
  • Process names with dashes are now highlighted properly
  • Better error messages when less is not found

2.0.0

  • Changed the binary name from spin to tspin

This is a symbolic release to settle on a new binary name with fewer conflicts. Both tailspin and spin already exist as binaries in different systems and distributions. tspin is a short and unique name that is unlikely to conflict with other binaries.

1.6.1

  • Fixed a bug where the --print flag would occasionally cause a panic

1.6.0

  • Added new highlight group under Keywords highlighter: HTTP methods
  • Added option for adding a border to keywords highlighter
  • Disable highlights with disable for all highlight groups except Keywords
  • Simplified the configuration file format
  • Date and time can be configured to be hidden

1.5.1

  • Update man pages

1.5.0 - 16.09.23

  • Errors are now printed to stderr instead of stdout
  • Date highlighter now supports different highlights for date and time segment
  • Added Key Value highlighter
  • Added unix process highlighter

1.4.0 - 12.08.23

  • Added -t/--tail flag to start reading from the end of a file.
  • Fixed a bug where opening a folder would include hidden files
  • Improved initial output when watching folders
  • Improved output when trying to open a file or folder which doesn't exist

1.3.0 - 31.07.23

  • Added support for tailing folders
  • Changed behavior: tailspin will now print to stdout by default if used in a pipe. For example: echo "hello null" | spin will output a syntax highlighted "hello null" directly to stdout instead of via the pager less. The change will make it easier to use tailspin in scripting and piping.
  • The --tail-command flag has been renamed to --follow-command

1.2.1 - 26.07.23

  • Run less with environment variable LESSSECURE=1

1.2.0 - 26.07.23

  • Added a --tail-command flag to allow for continuous tailing the output of a specified command
  • Added a -p / --print flag to print the output directly to stdout
  • Added man pages
  • Added shell completions for bash, zsh and fish

1.1.0 - 24.07.23

Core

  • less now starts with the --ignore-case and --RAW-CONTROL-CHARS flags
  • Added support for reading from stdin
  • Added a --version flag

1.0.0 - 11.07.23

Core

  • tailspin has been rewritten in Rust

Theming

  • All highlight groups are now customizable

0.1.1 - 27.02.23

Bugfixes

  • Fixed a bug that would occasionally lead to temp files not being cleaned up

Dependencies

  • Bump Go from 1.19 to 1.20
  • Bump bubbletea from 0.22.0 to 0.23.2
  • Bump golang.org/x/text from 0.3.7 to 0.3.8
  • Bump github.com/spf13/cobra from 1.5.0 to 1.6.1

0.1.0 - 25.09.22

Initial release

tailspin is a command line utility for viewing and tail-ing log files