tstack/lnav v0.13.0-beta3

on GitHub

lnav v0.13.0

Interface changes:

• The prompt is now a custom implementation instead of readline.
  Some highlights:

  • In the DB prompt: pressing CTRL+L will reformat the query and
    switch the prompt to multi-line mode; error locations will be
    highlighted.

  • In multi-line mode, you can click and drag the status bar above
    the prompt to resize the prompt.

  • Pressing CTRL+O in the prompt will transfer the prompt to
    contents to Visual Studio Code or the default text editor on
    macOS.
    You can then edit the file and run it from the | prompt with:

    |saved-prompt
    

  • When editing a regular expression, like the search prompt or
    for a filter, if the current pattern matches a line in the
    view, the following word will be suggested.
    For example, if the view has the text "foo bar baz" and you
    type "foo ", the prompt will suggest "bar" and you can then
    press TAB to complete.

  • In the history listing, an icon indicates if the command or
    query succeeded or failed.

  • Mouse input works as expected: left-click positions the cursor
    in a given location, and a click-drag will select text.
    A right-click will copy the selected text to the system
    clipboard.

• Pressing F1 in the prompt will show the help text for the
  prompt itself.
  The size of the prompt panel is expanded for readability.
• When reading from stdin, the files used to store the content
  will be rotated when they cross the /tuning/piper/max-size
  threshold.
  Previously, the name of the file in the TEXT view would just
  be "stdin", but now it includes the rotation number.
• The LOG and TEXT views will now display a message if they
  contain no content to make it clear to the user that they
  need to switch views or :open a file.
• The HIST view now supports bookmarks, so you can use the usual
  hotkeys to move to the next/previous time segment with
  errors/warnings/marks.
• In table cells, control characters are replaced with Unicode
  symbols and highlighted with the 'hidden' style from the theme.

Features:

• The :comment command will now switch the prompt to multi-line
  mode and does syntax highlighting for Markdown directives in the
  comment.
  The rendered Markdown will also now be shown in the preview panel.
• lnav code blocks in Markdown content now have a play button (▶)
  next to commands that you can click on to run the command.
• Scrolling right in the LOG view when at the start of a message
  can hide the timestamp/level fields in the message and insert a
  shorter timestamp column on the left side.
  The column should take less space than the existing field and
  aligns all timestamps across all log formats.
  This feature is gated by the /ui/views/log/time-column
  setting, with the following values:
  • disabled: scrolling right works as normal and does not insert
    the time column.
  • enabled: scrolling right enables the time column.
  • default: the time column is enabled and the default on startup.
• Added a fuzzy_match() SQL function that compares a pattern to
  a string and returns a score.
  The algorithm used is the same as in lnav itself.
• Added a match_rowid column to search tables to make it easier
  to join multiple search tables together.
  For example, when multiple log messages occur together in the
  same sequence.
  You can create search tables for each line and then join them
  to query over the whole group of messages.
• Added a :write-debug-log-to command that can be used to write
  lnav's internal debug log to a file.
• Added a :clear-adjusted-log-time command to clear the time offset
  set by the :adjust-log-time command.
• Added a measure_with_units SQLite collation function that can
  compare numbers with unit suffixes, like "10KB" or "1.2ms".
  The :create-search-table command will also use this collation
  function for capture patterns that are likely to capture a number
  with a unit.
• Log messages now have permalinks that can be used to reference them
  from other locations.
  The permalink for a message is shown in the parser details overlay
  (activated by pressing p).
  Selecting the "Permalink:" line in the overlay and then pressing
  c will copy the link to your clipboard.
  The link is also available in the log_line_link column of the
  log tables.
  These permalinks can be used with the :goto command to move to
  the log message.
  They can also be used in log message comments as targets for
  Markdown links, which can be clicked to jump to the message.
• The CTRL + O shortcut is now bound to the :prev-location
  command, so you can jump back to a previous location.
• Render task marks in markdown.
• The demultiplexing feature has been extended to support JSON-lines
  input files.
  For example, an
  export of search results from Graylog
  can automatically be split into separate streams based on the
  source property.
• Added an lnav_focused_msg SQL VIEW that returns a single row
  with the columns from the all_logs table for the currently
  focused log message. An UPDATE of the mutable columns will
  update the corresponding row in the all_logs table.

Bug Fixes:

• Should start up in tmux and line drawing should show up now as well.
• The default terminal colors will now be used in the default theme.
  So, a light background with a dark foreground will be respected.
• Improved performance of searches with lots of hits.
• Improved performance for compressed files.
• Improved performance for the timeline view.
• Copying a column with a text value in the DB overlay view.
• Generic logs read from stdin or exec'd were not working properly.
• The :export-session-to command will now include :open commands
  for log files that were piped in to lnav or executed with the :sh
  command.
• The :set-file-timezone command was not working correctly in some
  cases.
• The location of views should be restored from the session when filters
  are active.