Nish: CHANGELOG.md at tip

File CHANGELOG.md from the latest check-in

# Changelog
All notable changes to this project will be documented in this file.

Tag **BREAKING** means the change break compatibility with a previous version
of the shell.

## [0.7.0] - 2024-02-11

### Added
- Completions for commands' arguments. It can be set manually or imported
  from files, previously exported from the shell, into the shell's database
- Commands to optimize, export or import the shell's database
- Option to set the maximum length of a terminal's title which will be set
  by the shell
- Loading shells' profiles on Unix systems
- Creating the Unix man page for the shell
- Ability to set the shell's output's colors as the shell's theme system.
- Date to the debug's log's messages
- Types to environment variables
- Command `exec` to execute a command with or without using the system's
  default shell. The behavior of the command depends on the shell's
  configuration
- Option to set the shell's default behavior related to executing commands: do
  the shell should use the system's default shell or not

### Changed
- Updated the shell's help entries
- Updated look of list of available subcommands. Now there are more colors.
- Redesigned the look of the output of command `options list`. Removed
  information about types and default values for options and made information
  about their values more human-friendly
- **BREAKING**: Redesigned the command `options set`. Instead of setting the
  name and value of the option to set by its arguments, the command is now a
  form similar to setting an alias or a variable
- **BREAKING**: Redesigned the command `options reset`. Same as above, instead of
  setting the name of the option to reset by its argument, the command will
  ask for the name after executing it. Resetting of all of options is done in
  the same way as it was
- Moved information about the last command's error code before information
  about the current directory in the shell's default prompt
- Commands `alias delete`, `alias show`, `alias edit` can now be executed
  without entering the index of the alias. In that situation, the user will
  be asked for the index of an alias from their list
- Commands `completion edit`, `completion delete`, `completion show` can now
  be executed without entering the index of the completion. In that situation,
  the user will be asked for the index of a completion from their list
- Commands `plugin remove`, `plugin enable`, `plugin disable`, `plugin show`
  can now be executed without entering the index of the plugin. In that
  situation, the user will be asked for the index of a plugin from their list
- Commands `variable delete`, `variable edit`, `variable show` can now be
  executed without entering the index of the variable. In that situation, the
  user will be asked for the index of a variable from their list
- Updated contributing guide
- Look of various shell's forms. Now they are more colorful.

### Fixed
- Cross-compiling the shell for Arm
- Typo in the editing alias message
- Getting completions for directories
- Handling unknown key pressed when selecting a command's suggestion
- Crash when setting a terminal's title
- Commands' suggestions don't work with the built-in shell's commands
- Refreshing environment variables after adding a new or editing an existing
- If the shell's alias' output is set to a file, append the result of the alias
  to the file instead of overwritting it
- Sending the shell's alias' output to the standard error output
- Loading the shell's plugins at start of the shell
- Disabling the shell's plugins
- Crash when there is no more entries in the shell's history

## [0.6.0] - 2023-11-13

### Added
- New subcommand `variable show` to show details about the selected shell's
  environment variable
- Option to set case-insentivity for Tab completion for directories and entries
- Logging the shell's actions to the file when the shell is build in debug
  mode
- New command `.` to repeat the last command entered by the user
- Support for Delete key in the user's input
- Suggestions for commands when the user enters an unknown command

### Changed
- Updated README.md
- Updated contributing guide
- Made the current values of a variable colored during its edition
- Show message when there are no defined aliases instead of the empty list
- Show message when there are no enabled or no available plugins instead of
  the empty list
- Show message when there are no defined environment variables instead of
  the empty list
- Better handling very long lines in the user's input
- Using **unittest2** package for the project's unit tests
- **BREAKING**: updated the shell's database schema and its code. This made
  the old entries in the shell's history to lost their last used time. All the
  new entries or updated entries will have set the time correctly
- Removed the shell's variables' description from command `variable list`
- Updated the shell's help entries
- Look of various lists. Now they have more colors inside
- Updated the shell's help system, with some text formatting options
- Setting a terminal's title shows also the command's arguments not just the
  command

### Fixed
- Compiling the shell with Nim 2.0
- Compiling the shell on Windows
- The shell hangs when the directory in which the user doesn't exist anymore
- Return the user's command's result as a shell's result
- Crash when trying to edit an existing environment variable
- Showing header during editing an alias after setting its recursiveness
- Typos in README.md and CHANGELOG.md
- Using environment variables in the shell's aliases
- Backspace key doesn't work in some terminal emulators

## [0.5.0] - 2023-01-05

### Added
- Directory separator to tab completion if the completion's result is a
  directory
- Tab completion now works also with commands not only with their arguments
- Support for Unicode in the user's input
- Ability to set the terminal's title. Can be enabled or disabled in the
  shell's options.
- Ability to enable or disable syntax highlighting for the user's input
- Ability to look for a command in the shell's commands' history
- Info about the amount of the last commands to `history list` command
- Tab completion: support for select a completion from the list of completions
- Tab completion: completion for available commands and shell's aliases
- Ability to set the amount of displayed Tab completions on the list
- Option to set style of the output headers, like sections in forms to set
  aliases and variables, listing commands, etc.
- Prevention from crash shell during work
- Options to set amount of columns in the help list and the completion list
- Sort alphabetically the list of shell's options

## Changed
- **BREAKING**: Updated plugins' system. May require to add the installed
  plugins again, due how pre-command and post-command hooks are handled
  now
- Updated README.md
- Better syntax highlighting in the user's commands
- Better handling the user's input in various forms, like adding variables,
  aliases, etc.
- Better look of some commands output, like headers, word wrapping, etc.
- **BREAKING**: Type of `historyAmount` option from natural to positive
- **BREAKING**: Redesigned how the shell's converts the commands arguments.
  It should now properly handle arguments like `-jar`.

### Fixed
- Clearing the plugin's table after failed adding the new plugin to the
  shell
- The shell option `promptCommand` should be writable by the user
- Style issues in README.md
- Refreshing the user input when it is longer than a terminal width
- Don't mark environment variable as invalid command
- Better handling arguments in the test plugin
- Special keys not working with some terminal emulators
- Typos in CHANGELOG.md and README.md
- Getting stack trace for the shell's exception when build in debug mode
- Adding values of short options in entered commands
- Aliases don't return proper exit codes
- Deleting exceeded commands from the shell's history
- Delete more commands from the shell's history if its size changed in the
  shell's options
- Shell's hangs on problems with input/output

## [0.4.0] - 2022-10-14

### Added
- **BREAKING**: Version to the plugins API
- Information about supported API version by plugin to `plugin show` command
- Information about used API calls by plugin to `plugin show` command
- Deleting a character with Backspace key in the middle of the user's input
- Canceling entering the command with Ctrl-c
- Showing error message when a plugin sends unknown request or response to the
  shell
- Ability to add, remove or replace the shell's commands with the shell's
  plugins
- Ability to add, remove or update the shell's help's entries with the shell's
  plugins

### Changed
- Updated README.md
- Updated contributing guide
- **BREAKING**: Better, more effective system of plugins
- Better help entry for list of subcommands for the selected command
- **BREAKING**: Better, more advanced system of help

### Fixed
- Typos in README.md
- Crash when trying to enter a directory outside the user's home directory tree
- Executing aliases which arguments contain whitespace
- Backspace key during editing a command entered by the user

## [0.3.0] - 2022-07-29

### Added
- Shell's commands' history now remember directory in which the command used
  last time and prioritize the local commands
- Support for shell's read-only options
- Ability to select how the shell's history should be sorted
- Ability to reverse direction of the shell's history last commands list
- Ability to set the amount, order and direction of order of the last commands
  to show for `history list` command
- Ability to redirect output of aliases to standard error or the selected file
- Ability to set the output of program or script as the shell's prompt
- The shell's plugins' system

### Changed
- Better getting commands from the shell's history
- Better help entry for `history list` command
- Type of some the shell's options' to natural instead of integer
- Updated README.md
- **BREAKING**: Renamed command `history show` to `history list` to match other
  subcommands related to listings
- **BREAKING**: Renamed command `options show` to `options list` to match other
  subcommands related to listings

### Fixed
- Reading command line parameters, when there is set database path and the
  command to execute
- The program's help about setting the database's path
- Showing error information during Tab completion
- Showing error information during getting command from the shell's history
- Showing error message on standard output instead of standard error
- The look of `alias show` command when the description of the alias is empty
- Pressing Enter key repeat the last entered command
- The cursor position during editing a command

## [0.2.0] - 2022-05-09

### Added
- Checks for valid name and path during creating or editing the shell's aliases
- Checks for valid name and path during creating or editing the shell's
  environment variables
- When there is partial input, looking in the shell's history returns the first
  command which starts with the input
- Ability to insert characters into the current input of the user
- Ability to move between start and end of the current input of the user with
  Home and End keys
- Simple Tab completion for command with names of files and directories
- Coloring the user entered command on green when valid and red on invalid
- Ability to use environment variables inside the shell's environment variables

### Changed
- Updated README.md
- Updated adding a new alias form
- Updated editing an existing alias form
- Updated look of list of available aliases, help entries, showing last
  commands from shell's history, list of shell's options, list of environment
  variables, showing the selected alias details, list of shell's options
- Updated adding a new variable form
- Updated editing an existing variable form

### Fixed
- Merging commands with || in aliases doesn't work properly
- Information about unknown help topic
- Parsing aliases arguments when the user input contains $ sign
- Handling aliases arguments with whitespace

## [0.1.0] - 2022-02-23
- Initial release