v0.12.4-beta2

lnav v0.12.4

Features:

• Log message timestamps are now represented with microsecond
  precision internally instead of just millisecond.
• The log_time and log_level fields can now be hidden.
• Added a report-access-log script that generates a report that
  is similar to the output of the goaccess
  utility.
• Added a find-msg script that can be used to find the
  next/previous message with a field that matches the value of the
  field in the focused message.
• Added a find-chained-msg script that can be used to find the
  next/previous message where a target field matches the value of
  the source field in the focused message.
• Scripts can now specify their output format using the
  @output-format: documentation description.
  This setting can affect the output of some commands, like
  :write-table-to which will output Markdown tables when the
  output is set to text/markdown.
• Column alignment in Markdown tables is now supported.
• Added ecs_log for the Elastic Common Schema from @ba-didi.
• Added a Proxifier log format.
• Escape sequences for 24-bit color are now handled.
• The -i option for installing files will now copy .lnav
  script files to the formats/installed directory.
• Added italic and strike to the text styling configuration.
• DB query results can now be styled on a row-by-row basis by
  adding a column with the name __lnav_style__.
• Added "format test" management command to make it
  easier to test a format against a file.
  This can be helpful for determining why a file is not being
  recognized by particular format.
• Added a "performance" section to the documentation.
• Session exports now include :hide-fields and :show-fields
  commands from the session.
  They are currently commented out by default.

Interface changes:

• DB query results that start with a number are right justified
  instead of only full numbers.
• Left-clicking a local link in a Markdown document will jump to
  that section of the document instead of opening the overlay
  menu.
  You can still open the overlay menu by right-clicking on the link.
• Rows in a Markdown table are now highlighted with alternating
  styles.
• Long-running SQL queries in scripts are now mentioned in the UI
  to make it easier to see what is going on.
• Defining a value in a log format with the same name as one of
  predefined columns in the log virtual tables will now generate
  an error.
• The DB view will now chart result columns that contain a number
  with a unit, like "KB", "MB", "GB", etc...
• When switching to the pretty view, the focused line should be
  in the same position in the text as in the source view.
• In the LOG view, you can now copy the value of a field by
  pressing c when focused on a line in the parser details
  overlay (activated by pressing p).
• In the DB View, if there is a column named log_level, it
  will be used as the level for the row and the hotkeys for
  jumping to the next/previous error/warning will work.
• In the DB View, columns can now be hidden/shown using the
  :hide-fields / :show-fields commands.
• In the DB View, pressing p now works for all rows and will
  show all columns and not just JSON ones.
  You can then press c while focused in the overlay to copy
  the value of the column.
  Pressing space while focused on a column in the overlay will
  hide/show it.

Breaking changes:

• The parse_url() SQL function no longer raises an error for an
  invalid URL.
  Instead, it will return a JSON object with an object with the
  following properties:
  • error - An identifier for the error.
  • url - The invalid URL itself.
  • reason - A description of the error.

Bug Fixes:

• Reduced startup time.
• Reduced indexing time for plain text and JSON-lines logs.
• Reduced memory footprint.
• Improved search performance.
• Reduced DB view CPU and memory usage.
• Reduce time to open help text.
• Improved performance of log virtual tables when ordering the
  result by log_line DESC.
• Improved performance of the spooky_hash() SQL function.

Maintenance:

• Replaced ncurses with notcurses.

v0.12.3

lnav v0.12.3

Features:

• Files that contain a mixture of log messages from separate
  services (e.g. docker logs) can now be automatically
  de-multiplexed into separate files that lnav can digest.
• The log_opid column on log vtables can now be UPDATEd
  so that you can manually set an opid on log messages that
  don't have one. Setting an opid allows messages to show
  up in the timeline view.
• The Files panel now has a details view on the right side
  that shows extra information about the selected file.
  You can look here for details of why lnav selected a
  particular log format.
• Add support for GitHub Markdown Alerts.
• Added the :xopen command that will open the given paths
  using an external opener like open or xdg-open.
• Clicking on a link in a markdown file will open the Actions
  with the following options:
  • opening the link target in lnav or, if it's an lnav script,
    executing the script;
  • opening the target with :xopen;
  • or, copying the link to the clipboard.
• Added a crash upload command to the management CLI that will
  upload crash logs to a server for analysis.
• Added a :set-text-view-mode command that controls whether
  file contents, such as markdown, are rendered or shown in
  their raw state.
• Text files with lines longer than 1024 characters will be
  automatically pretty-printed. You can revert to the raw view
  using the :set-text-view-mode command. The character limit
  can be adjusted with the
  /tuning/textfile/max-unformatted-line-length configuration
  setting.
• Added a pretty_print() SQL function that provides the same
  functionality as the PRETTY view.
• Keymap definitions can now bind to a function key using an
  identifier that starts with f followed by the number of the
  function key.
• Added log formats for the env_logger and simple_logger Rust
  crates.
• Timestamp formats can now use %j to capture day-of-year values.

Interface Changes:

• The "Gantt Chart" view has been renamed to "timeline."
• In the timeline view, pressing ENTER will focus on
  the preview pane, so you can scroll through messages
  with the selected Op ID.
• With mouse mode enabled, CTRL can be used as an alternate
  to SHIFT when clicking/dragging in the main view to
  highlight lines. A few terminals capture shift+clicks as a
  way to select text and do not pass them to the application.
• Clicking on an internal link in a Markdown document will move
  to that section.

Bug Fixes:

• Log messages in formats with custom timestamp formats were
  not being converted to the local timezone.
• The timezone offset is now shown in the parser details
  overlay for log messages.
• If a theme does not define cursor-line or selected-text
  styles, the styles from the default theme will be used.
• The first argument to a script is now the full path of the
  script and not just the script name.

Maintenance:

• You can now do an UPDATE on the lnav_top_view SQL view.
  This makes it easier to write queries that manipulate the
  current view.
• Upgrade to C++17

v0.12.3-beta5

lnav v0.12.3

Features:

• Files that contain a mixture of log messages from separate
  services (e.g. docker logs) can now be automatically
  de-multiplexed into separate files that lnav can digest.
• The log_opid column on log vtables can now be UPDATEd
  so that you can manually set an opid on log messages that
  don't have one. Setting an opid allows messages to show
  up in the timeline view.
• The Files panel now has a details view on the right side
  that shows extra information about the selected file.
  You can look here for details of why lnav selected a
  particular log format.
• Add support for GitHub Markdown Alerts.
• Added the :xopen command that will open the given paths
  using an external opener like open or xdg-open.
• Clicking on a link in a markdown file will open the Actions
  with the following options:
  • opening the link target in lnav or, if it's an lnav script,
    executing the script;
  • opening the target with :xopen;
  • or, copying the link to the clipboard.
• Added a crash upload command to the management CLI that will
  upload crash logs to a server for analysis.
• Added a :set-text-view-mode command that controls whether
  file contents, such as markdown, are rendered or shown in
  their raw state.
• Text files with lines longer than 1024 characters will be
  automatically pretty-printed. You can revert to the raw view
  using the :set-text-view-mode command. The character limit
  can be adjusted with the
  /tuning/textfile/max-unformatted-line-length configuration
  setting.
• Added a pretty_print() SQL function that provides the same
  functionality as the PRETTY view.
• Keymap definitions can now bind to a function key using an
  identifier that starts with f followed by the number of the
  function key.
• Added log formats for the env_logger and simple_logger Rust
  crates.
• Timestamp formats can now use %j to capture day-of-year values.

Interface Changes:

• The "Gantt Chart" view has been renamed to "timeline."
• In the timeline view, pressing ENTER will focus on
  the preview pane, so you can scroll through messages
  with the selected Op ID.
• With mouse mode enabled, CTRL can be used as an alternate
  to SHIFT when clicking/dragging in the main view to
  highlight lines. A few terminals capture shift+clicks as a
  way to select text and do not pass them to the application.
• Clicking on an internal link in a Markdown document will move
  to that section.

Bug Fixes:

• Log messages in formats with custom timestamp formats were
  not being converted to the local timezone.
• The timezone offset is now shown in the parser details
  overlay for log messages.
• If a theme does not define cursor-line or selected-text
  styles, the styles from the default theme will be used.
• The first argument to a script is now the full path of the
  script and not just the script name.

Maintenance:

• You can now do an UPDATE on the lnav_top_view SQL view.
  This makes it easier to write queries that manipulate the
  current view.
• Upgrade to C++17

v0.12.2

lnav v0.12.2

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.

v0.12.2-beta2

lnav v0.12.2

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.

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.

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.

v0.12.2-beta1

lnav v0.12.2

Features:

• 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 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 will select the underlying token and
    drag-selecting within a line will select the given text;
  • 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;
  • clicking in the scroll area will move the view by a page 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.
    This is new work, so there are likely to be some glitches.

• 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.

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.

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.
• Various fixes to make lnav usable as a PAGER.

v0.12.1a-beta2

lnav v0.12.1

Features:

• Database queries can now be written in
  PRQL. When executing a query with ;,
  if the query starts with from, it will be treated as PRQL.
  The pipeline structure of PRQL queries is more desirable for
  interactive use since lnav can make better suggestions and
  show previews of the stages of the pipeline.
• Log partitions can automatically be created by defining a log
  message pattern in a log format. Under a format definition,
  add an entry into the "partitions" object in a format definition.
  The "pattern" property specifies the regular expression to match
  against a line in a file that matches the format. If a match is
  found, the partition name will be set to the value(s) captured
  by the regex. To restrict matches to certain files, you can add
  a "paths" array whose object elements contain a "glob" property
  that will be matched against file names.

Interface changes:

• When using PRQL in the database query prompt (;),
  the preview pane will show the results for the pipeline
  stage the cursor is within along with the results of
  the previous stage (if there is one). The preview
  works on a limited data set, so the preview results
  may differ from the final results.
• Changed the breadcrumb bar styling to space things out
  more and make the divisions between items clearer.
• The ESC key can now be used to exit the files/filters
  configuration panel instead of q. This should make
  it easier to avoid accidentally exiting lnav.
• Added some default help text for the command prompt.
• Suggestions are now shown for some commands and can
  be accepted by pressing the right arrow key. For
  example, after typing in :filter-in the current
  search term for the view will be suggested (if
  one is active).
• The focused line should be preserved more reliably in
  the LOG/TEXT views.
• In the LOG view, the current partition name (as set
  with the :partition-name command) is shown as the
  first breadcrumb in the breadcrumb bar. And, when
  that breadcrumb is selected, you can select another
  partition to jump to.
• The { / } hotkeys, :next-section, and :prev-section
  commands now work in the LOG view and take you to the
  next/previous partition.
• The DB view now defaults to not showing bar charts.

Breaking changes:

• Many of the lesser used column in the log format tables
  (e.g. log_tags) have been moved to after the columns
  defined by the format. These columns are usually NULL
  and are a distraction when previewing queries.

v0.12.1a-beta1

lnav v0.12.1

Features:

• Database queries can now be written in
  PRQL. When executing a query with ;,
  if the query starts with from, it will be treated as PRQL.
  The pipeline structure of PRQL queries is more desirable for
  interactive use since lnav can make better suggestions and
  show previews of the stages of the pipeline.
• Log partitions can automatically be created by defining a log
  message pattern in a log format. Under a format definition,
  add an entry into the "partitions" object in a format definition.
  The "pattern" property specifies the regular expression to match
  against a line in a file that matches the format. If a match is
  found, the partition name will be set to the value(s) captured
  by the regex. To restrict matches to certain files, you can add
  a "paths" array whose object elements contain a "glob" property
  that will be matched against file names.

Interface changes:

• When using PRQL in the database query prompt (;),
  the preview pane will show the results for the pipeline
  stage the cursor is within along with the results of
  the previous stage (if there is one). The preview
  works on a limited data set, so the preview results
  may differ from the final results.
• Changed the breadcrumb bar styling to space things out
  more and make the divisions between items clearer.
• The ESC key can now be used to exit the files/filters
  configuration panel instead of q. This should make
  it easier to avoid accidentally exiting lnav.
• Added some default help text for the command prompt.
• Suggestions are now shown for some commands and can
  be accepted by pressing the right arrow key. For
  example, after typing in :filter-in the current
  search term for the view will be suggested (if
  one is active).
• The focused line should be preserved more reliably in
  the LOG/TEXT views.
• In the LOG view, the current partition name (as set
  with the :partition-name command) is shown as the
  first breadcrumb in the breadcrumb bar. And, when
  that breadcrumb is selected, you can select another
  partition to jump to.
• The { / } hotkeys, :next-section, and :prev-section
  commands now work in the LOG view and take you to the
  next/previous partition.
• The DB view now defaults to not showing bar charts.

Breaking changes:

• Many of the lesser used column in the log format tables
  (e.g. log_tags) have been moved to after the columns
  defined by the format. These columns are usually NULL
  and are a distraction when previewing queries.

v0.12.1

lnav v0.12.1

Features:

• Database queries can now be written in
  PRQL. When executing a query with ;,
  if the query starts with from, it will be treated as PRQL.
  The pipeline structure of PRQL queries is more desirable for
  interactive use since lnav can make better suggestions and
  show previews of the stages of the pipeline.
• Log partitions can automatically be created by defining a log
  message pattern in a log format. Under a format definition,
  add an entry into the "partitions" object in a format definition.
  The "pattern" property specifies the regular expression to match
  against a line in a file that matches the format. If a match is
  found, the partition name will be set to the value(s) captured
  by the regex. To restrict matches to certain files, you can add
  a "paths" array whose object elements contain a "glob" property
  that will be matched against file names.

Interface changes:

• When using PRQL in the database query prompt (;),
  the preview pane will show the results for the pipeline
  stage the cursor is within along with the results of
  the previous stage (if there is one). The preview
  works on a limited data set, so the preview results
  may differ from the final results.
• Changed the breadcrumb bar styling to space things out
  more and make the divisions between items clearer.
• The ESC key can now be used to exit the files/filters
  configuration panel instead of q. This should make
  it easier to avoid accidentally exiting lnav.
• Added some default help text for the command prompt.
• Suggestions are now shown for some commands and can
  be accepted by pressing the right arrow key. For
  example, after typing in :filter-in the current
  search term for the view will be suggested (if
  one is active).
• The focused line should be preserved more reliably in
  the LOG/TEXT views.
• In the LOG view, the current partition name (as set
  with the :partition-name command) is shown as the
  first breadcrumb in the breadcrumb bar. And, when
  that breadcrumb is selected, you can select another
  partition to jump to.
• The { / } hotkeys, :next-section, and :prev-section
  commands now work in the LOG view and take you to the
  next/previous partition.
• The DB view now defaults to not showing bar charts.

Breaking changes:

• Many of the lesser used column in the log format tables
  (e.g. log_tags) have been moved to after the columns
  defined by the format. These columns are usually NULL
  and are a distraction when previewing queries.

v0.12.1-beta1

lnav v0.12.1

Features:

• Database queries can now be written in
  PRQL. When executing a query with ;,
  if the query starts with from, it will be treated as PRQL.
  The pipeline structure of PRQL queries is more desirable for
  interactive use since lnav can make better suggestions and
  show previews of the stages of the pipeline.
• Log partitions can automatically be created by defining a log
  message pattern in a log format. Under a format definition,
  add an entry into the "partitions" object in a format definition.
  The "pattern" property specifies the regular expression to match
  against a line in a file that matches the format. If a match is
  found, the partition name will be set to the value(s) captured
  by the regex. To restrict matches to certain files, you can add
  a "paths" array whose object elements contain a "glob" property
  that will be matched against file names.

Interface changes:

• When using PRQL in the database query prompt (;),
  the preview pane will show the results for the pipeline
  stage the cursor is within along with the results of
  the previous stage (if there is one). The preview
  works on a limited data set, so the preview results
  may differ from the final results.
• Changed the breadcrumb bar styling to space things out
  more and make the divisions between items clearer.
• The ESC key can now be used to exit the files/filters
  configuration panel instead of q. This should make
  it easier to avoid accidentally exiting lnav.
• Added some default help text for the command prompt.
• Suggestions are now shown for some commands and can
  be accepted by pressing the right arrow key. For
  example, after typing in :filter-in the current
  search term for the view will be suggested (if
  one is active).
• The focused line should be preserved more reliably in
  the LOG/TEXT views.
• In the LOG view, the current partition name (as set
  with the :partition-name command) is shown as the
  first breadcrumb in the breadcrumb bar. And, when
  that breadcrumb is selected, you can select another
  partition to jump to.
• The { / } hotkeys, :next-section, and :prev-section
  commands now work in the LOG view and take you to the
  next/previous partition.
• The DB view now defaults to not showing bar charts.

Breaking changes:

• Many of the lesser used column in the log format tables
  (e.g. log_tags) have been moved to after the columns
  defined by the format. These columns are usually NULL
  and are a distraction when previewing queries.