# Changelog
This project follows [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
## v0.11.3
* Fixes
* Set the minimum log viewer line width to 25 so that the viewer works when
the terminal forgets how wide it is
## v0.11.2
* Fixes
* Don't crash when logging corrupt data. This is not common, but can caused
when logging output from system commands.
## v0.11.1
* Fixes
* Fix minor pagination issues with viewer
* Adjust boot start search string to work with more Nerves systems
## v0.11.0
* New features
* Add small TUI. Run `RingLogger.viewer` and type `h` for help to try it out.
Thanks to @doawoo for this feature.
## v0.10.5
* Fixes
* Reset potentially outdated indexes when persisted logs are loaded. Fixes
the case where the persisted logs might have a much higher index than the
current buffer, so every new log gets added before the loaded logs
## v0.10.4
* Fixes
* History from loaded persistance file would be reset and lost if multiple
buffers were configured outside the default buffer when RingLogger was
reconfigured (at startup or runtime)
## v0.10.3
* Improvements
* Add ability to grep text of a metadata key (thanks @levex! :heart:).
See `RingLogger.grep_metadata/2` for more info.
## v0.10.2
* Fixes
* Fix remaining Elixir 1.15 warnings
## v0.10.1
* Improvements
* Add guards to prevent some bad API inputs from crashing in places
disconnected from the original calls.
## v0.10.0
This latest release removes support for Elixir versions before 1.11 to fix
deprecation warnings on Elixir 1.15. Elixir 1.11 to 1.14 are officially
supported and Elixir 1.15 will be supported when released.
* Improvements
* Support for syncing the RingBuffer to disk at periodic intervals. This
provides an option between a standard file logger and a fully in-memory log.
This doesn't provide additional history, but does enable logs to survive
reboots (assuming they were saved). It's disabled by default. See the
`:persist_path` and `:persist_seconds` options for details. Thanks to
@oestrich for adding this feature.
## v0.9.0
This latest release removes support for Elixir versions before 1.9.
* Improvements
* Support multiple circular buffers and filtering based on log level. This
makes it possible to separate out debug and info messages so they don't push
out error messages. See the `README.md` for configuration examples. Thanks
to @oestrich for this feature.
* Fixed and added specs throughout
## v0.8.6
* Improvements
* Fixed crashes when converting unicode chardata. Thanks to @x4lldux for this
fix.
## v0.8.5
* Improvements
* `RingLogger.grep/2` supports `:before` and `:after` options
* Support OTP 25
## v0.8.4
* Fixes
* Default color enabled option now correctly evaluated at runtime for the active IO
* Improvements
* `RingLogger.grep` will now highlight matches in the output if color is enabled
## v0.8.3
* Fixes
* Pull all application environment configuration from `:logger, RingLogger`
rather than some from there and some from `:ring_logger`. Adding
configuration under `:ring_logger` is still supported, but prints a
deprecation warning. Thanks to Jason Axelson for this fix.
## v0.8.2
* Improvements
* Circular buffer improvements are all upstream in the `circular_buffer`
library, so this release makes it official by deleting the internal
implementation and using the hex package.
## v0.8.1
* New features
* `RingLogger.next/1` now outputs a summary line that says how many log
messages were recented and how many were filtered. This makes it easier to
identify when the ring buffer is being overtaken by filtered log entries
* Improvements
* Several internal refactorings were made to reduce memory usage and
the number of reductions run in the `RingLogger.Server` GenServer. This
makes a noticeable improvement when monitoring resource usage on a device.
* Improved tests to verify more edge conditions
## v0.8.0
* New features
* Support filtering by OTP application. This uses the same mechanism as
per-module filtering by automatically adding in all modules that are part of
an OTP application. It is super useful! See the README.md. Thanks to Jon
Carstons for adding this feature.
* Support setting defaults on RingLogger clients so that you can configure
things like a global default to info level messages and then only show
debug messages from some applications
## v0.7.0
* New features
* Added `save/1` to save the current set of log messages in the ring buffer to
a file
## v0.6.1
* Bug fixes
* Make `RingLogger.grep` friendlier by supporting strings as arguments
## v0.6.0
Important: `RingLogger.tail` is now `RingLogger.next`. `RingLogger.tail` shows
the last n lines of the log (default is 10).
* New features
* `grep` greps the whole log entry rather than just the message portion. You
can `grep` on timestamps and message levels now.
* Functions that print log messages do the printing in the caller's context so
that printing timeouts don't happen in RingLogger GenServers calls.
* Added `:none` as a per-module log level to completely silence a module.
* Added `:pager` option to specify a custom printer for the interactive
commands.
## v0.5.0
* New features
* Add support for changing the log levels on a per-module basis. Thanks to
Matt Ludwigs for this change. See the README.md for details.
* Add a `:format` option to accept a custom format function similar to how
`Logger` supports custom formatting. Thanks to Tim Mecklem for this.
* Bumped default ring buffer size from 100 messages to 1024.
* Bug fixes
* Log clients are now fully configurable. Previous versions inadvertantly
limited the options that could be set.
## v0.4.1
* Bug fixes
* Fix crash when `grep`'ing iodata
* Fix `init/1` callback return value when only specifying the module.
## v0.4.0
* New features
* Added `grep`
* Automatically add the backend if it's not running when using the IEx helpers
## v0.3.0
Renamed `LoggerCircularBuffer` to `RingLogger` and made backwards incompatible
API changes. Please review docs when upgrading.
* New features
* Simplified use from IEx by autostarting the Client GenServer
* Added support for `tail`ing logs
## v0.2.0
Renamed `LoggerCircularBuffer` to `LoggerCircularBuffer`
## v0.1.0
Initial release
