lnav v0.12.2 released!

[lnav support]

lnav v0.12.2 has been released here:

https://github.com/tstack/lnav/releases/tag/v0.12.2

The major changes are as follows:

Features:

* Added mouse support that can be toggled with `F2` or enabled

  by default with: `:config /ui/mouse/mode enabled`.  With

  mouse support enabled, many of the UI elements will respond to

  mouse inputs:

  - clicking on the main view will move the cursor to the given

    row and dragging will scroll the view as needed;

  - shift + clicking/dragging in the main view will highlight

    lines and then toggle their bookmark status on release;

  - double-clicking in the main view will select the underlying

    text and drag-selecting within a line will select the given

    text;

  - when double-clicking text: if the mouse pointer is inside

    a quoted string, the contents of the string will be selected;

    if the mouse pointer is on the quote, the quote will be included

    in the selection; if the mouse pointer is over a bracket

    (e.g. [],{},()) where the matching bracket is on the same line,

    the selection will span from one bracket to the other;

  - when text is selected, a menu will pop up that can be used

    to filter based on the current text, search for it, or copy

    it to the clipboard;

  - right-clicking the start of a log message in the main view

    will open the parser details overlay;

  - the parser details now displays a diamond next to fields to

    indicate whether they are shown/hidden and this can be

    clicked to toggle the state;

  - the parser details will show a bar chart icon for fields with

    values which, when clicked, will open either the spectrogram

    view for the given field or open the DB query prompt with a

    PRQL query to generate a histogram of the field values;

  - clicking in the scroll area will move the view by a page,

    double-clicking will move the view to that area, and

    dragging the scrollbar will move the view to the given spot;

  - clicking on the breadcrumb bar will select a crumb and

    selecting a possibility from the popup will move to that

    location in the view;

  - clicking on portions of the bottom status bar will trigger

    a relevant action (e.g. clicking the line number will open

    the command prompt with `:goto <current-line>`);

  - clicking on the configuration panel tabs (i.e. Files/Filters)

    will open the selected panel and clicking parts of the

    display in there will perform the relevant action (e.g.

    clicking the diamond will enable/disable the file/filter);

  - clicking in a prompt will move the cursor to the location;

  - clicking on a column in the spectrogram view will select it.

  (Note that this is new work, so there are likely to be some

  glitches.)

* Added a `journald://` URL handler that will call `journalctl`

  and pass any query parameters as options.  For example, the

  following command:

  ```

  $ lnav 'journal://?since=yesterday'

  ```

  Will execute the following and capture the output:

  ```

  journalctl --output=json -f --since=yesterday

  ```

* Added the "last-word" line-format field shortening algorithm

  from @flicus.

* Added a `stats.hist` PRQL transform that produces a histogram

  of values over time.

* The preview for the `:open` command will now show a listing

  of archive contents.

* Added `humanize_id` SQL function that colorizes a string using

  ANSI escape codes.

* Added a `selected_text` column to the `lnav_views` table that

  reports information about text that was selected with a mouse.

  This makes it possible to script operations that use the

  selected text as an input.

* Added `breadcrumb` as an option to the `:prompt` command so

  that the breadcrumb hotkey can be configured.

Interface changes:

* The bar charts in the DB view have now been moved to their

  individual columns instead of occupying the whole width of

  the view.  The result is much cleaner, so the charts are

  now enabled by default again.

* Cursor mode in the main view is now the default instead of

  using the top line as the focus.  You can change back by

  running:

  `:config /ui/movement/mode top`

* In the parser details panel (opened by pressing `p`), you

  can now hide/show fields by moving the cursor line to the

  given field and pressing the space bar or by clicking on

  the diamond with the mouse.

* The `sv` keymap binds `§` to focus the breadcrumb bar.

Bug Fixes:

* With the recent xz backdoor shenanigans, it seems like a good

  time to add some checks for data being hidden by escape codes:

  - File names with escape sequences are now displayed in quotes

    with backslash escapes.

  - Text that has the same foreground and background colors will

    have the background set to a contrasting color.

* Sub-millisecond time values should now be preserved when

  displaying JSON-lines logs.

* A crash during initialization on Apple Silicon and MacOS 12

  has been fixed.

* A crash when previewing non-text files.

* Optimized ANSI-escape processing.

* Various fixes to make lnav usable as a `PAGER`.

Thanks,

Tim