v0.8.2-alpha

[log_vtab_manager] fix lookup_impl()

lnav v0.8.1

Features:

• Added a spectrogram command and view that displays the values of a
  numeric field over time. The view works for log message fields or
  for database result columns.
• Log formats can now create SQL views and execute other statements
  by adding '.sql' files to their format directories. The SQL scripts
  will be executed on startup.
• Added 'json_group_object' and 'json_group_array' aggregate SQL
  functions that collects values from a GROUP BY query into a JSON
  object or array, respectively.
• The SQL view will now graph values found in JSON objects/arrays in
  addition to the regular columns in the result.
• Added an 'regexp_match(, )' SQL function that can be used to
  extract values from a string using a regular expression.
• Added an 'extract()' SQL function that extracts values using the
  same data discover/extraction parser used in the 'logline' table.
• Added a "summary" overlay line to the bottom of the log view that
  displays how long ago the last message was received, along with the
  total number of files and the error rate over the past five minutes.
• Pressing 'V' in the DB view will now check for a column with a
  timestamp and move to the corresponding time in the log view.
• Added 'a/A' hotkeys to restore a view previously popped with 'q/Q'.
• Added ":hide-lines-before", ":hide-lines-after", and
  ":show-lines-before-and-after" commands so that you can filter out
  log lines based on time.
• Scripts containing lnav commands/queries can now be executed using
  the pipe ('|') hotkey. See the documentation for more information.
• Added an ":eval" command that can be used to execute a command or
  query after performing environment variable substitution.
• Added an ":echo" command that can be useful for scripts to message
  the user.
• The "log_part" column can now be set with an SQL UPDATE statement.
• Added a "log_body" hidden column that returns the body of the log
  message.
• Added ":config", ":reset-config", and ":save-config" commands to change
  configuration options, reset to default, and save them for future
  executions.
• Added a "/ui/clock-format" configuration option that controls the time
  format in the top-left corner.
• Added a "/ui/dim-text" configuration option that controls the brightness
  of text in the UI.
• Added support for TAI64 timestamps (http://cr.yp.to/libtai/tai64.html).
• Added a safe execution mode. If the 'LNAVSECURE' environment variable is
  set before executing lnav, the following commands are disabled:
  • open
  • pipe-to
  • pipe-line-to
  • write-*-to
    This makes it easier to run lnav with escalated privileges in restricted
    environments, without the risk of users being able to use the above
    mentioned commands to gain privileged access.

Interface Changes:

• The 'o/O' hotkeys have been reassigned to navigate through log
  messages that have a matching "opid" field. The old action of
  moving forward and backward by 60 minutes can be simulated by
  using the ':goto' command with a relative time and the 'r/R'
  hotkeys.
• Log messages with timestamps that pre-date previous log messages will
  have the timestamp highlighted in yellow and underlined. These out-
  of-time-order messages will be assigned the time of the previous
  message for sorting purposes. You can press the 'p' hotkey to examine
  the 'Received Time' of the message as well as the time parsed from the
  original message. A "log_actual_time" hidden field has also been
  added to the SQLite virtual table so you can operate on the original
  message time from the file.
• The 'A/B' hotkeys for moving forward/backward by 10% line increments
  have been reassigned to '[' and ']'. The 'a' and 'A' hotkeys are now
  used to return to the previously popped view while trying to preserve
  the time range. For example, after leaving the spectrogram view with
  'q', you can press 'A' return to the view with the top time in the
  spectrogram matching the top time in the log view.
• The 'Q' hotkey now pops the current view off of the stack while
  maintaining the top time between views.

Fixes:

• Issues with tailing JSON logs have been fixed.
• The jget() SQL function should now work for objects nested in arrays.

lnav v0.8.0

Features:

• Integration with "papertrailapp.com" for querying and tailing
  server log and syslog messages. See the Papertrail section in
  the online help for more details.
• Remote files can be opened when lnav is built with libcurl v7.23.0+
• SQL queries can now be done on lines that match a regular expression
  using the "log_search" table or by creating custom tables with the
  ":create-search-table" command.
• Log formats that are "containers" for other log formats, like
  syslog, are now supported. See the online help for more
  information.
• Formats can be installed from git repositories using the '-i' option.
  A standard set of extra formats can be installed by doing
  'lnav -i extra'. (You must have git installed for this to work.)
• Added support for 'VMware vSphere Auto Deploy' log format.
• Added a 'sudo' log format.
• Added hotkeys to move left/right by a smaller increment (H/L or
  Shift+Left/Shift+Right).
• A color-coded bar has been added to the left side to show where
  messages from one file stop and messages from another file start.
• The '-C' option will now try to check any specified log files to
  make sure the format(s) match all of the lines.
• Added an "all_logs" SQLite table that contains the message format
  extracted from each log line. Also added a ';.msgformat' SQL command
  that executes a query that returns the counts for each format and the
  first line where the format was seen.
• Added an "lnav_views" SQLite table that can be used to query and
  change the lnav view state.
• When typing in a command, the status bar will display a short
  summary of the currently entered command.
• Added a "delete-filter" command.
• Added a "log_msg_instance" column to the logline and log_search
  tables to make it easier to join tables that are matching log
  messages that are ordered.
• Added a "timeslice()" function to SQLite so that it is easier to
  group log messages by time buckets.
• The 'goto' command now supports relative time values like
  'a minute ago', 'an hour later', and many more.

Interface Changes:

• The 'r/R' hotkeys have been reassigned to navigate through the log
  messages by the relative time value that was last used with the
  'goto' command.

Fixes:

• The pretty-print view should now work for text files.
• Nested fields in JSON logs are now supported for levels, bodies, etc...
• Tab-completion should work for quoted SQL identifiers.
• 'lo-fi' mode key shortcut changed to CTRL+L.
• 'redraw' shortcut removed. Relegated to just a command.
• Fixed lnav hang in pretty-print mode while doing a dns lookup.
• The generic log message parser used to extract data has been
  optimized and should be a bit faster.

lnav v0.7.3

Features:

• Add 'pipe-to' and 'pipe-line-to' commands that pipe the currently
  marked lines or the current log message to a shell command,
  respectively.
• Added a "pretty-print" view (P hotkey) that tries to reformat log
  messages so that they are easier to read.
• Added a 'redraw' command (CTRL+L hotkey) to redraw the window in
  case it has been corrupted.
• Added a 'relative-goto' command to move the current view relative
  to its current position.
• Experimental support for linking with jemalloc.
• The plain text view now supports filtering.
• Added 'next-mark' and 'prev-mark' commands to jump to the next or
  previous bookmarked line (e.g. error, warning, ...)
• Added a 'zoom-to' command to change the zoom level of the histogram
  view.
• Log formats can now define their own timestamp formats with the
  'timestamp-format' field.

Fixes:

• Autotools scripts overhaul.
• Added a configure option to disable linking with libtinfo. The newer
  versions of ncurses don't require it, however the build silently pulls
  it in as a dependency, if it is available on the system. This can be
  explicitly disabled using the '--disable-tinfo' option during configure.
• Fixed the configure script behavior to ignore the values specified using
  the CFLAGS and LDFLAGS environment variables while searching for sqlite3
  when '--with-sqlite3' switch was specified without the prefix.
• The configure script now recognizes libeditline symlink'ed to masquerade
  as libreadline. This previously used to cause problems at compile time,
  specially on OS X. If you come across this error, use the
  '--with-readline=prefix' switch to specify the path to the correct
  location of libreadline.
• The order that log formats are tried against a log file is now
  automatically determined so that more specific formats are tested
  before more general ones. The order is determined on startup based on
  how each format matches each other formats sample lines.
• Command files (i.e. those executed via the '-f' flag) now support
  commands/queries that span more than one line.
• Added more log levels: stats, debug2 - debug5.

lnav v0.7.2

Features:

• Added log formats for vdsm, openstack, and the vmkernel.
• Added a "lo-fi" mode (L hotkey) that dumps the displayed log lines
  to the terminal without any decorations. The write-to, write-json-to,
  and write-csv-to commands will also write their output to the terminal
  when passed '-' as the file name. This mode can be useful for copying
  plain text lines to the clipboard.
• (OS X) Text search strings are copied to the system's "find" clipboard.
  Also, when starting a new search, the current value in the "find"
  clipboard can be tab-completed.

lnav v0.7.1

Features:

• Added an 'environ' SQL table that reflects lnav's environment
  variables. The table can be read and written to using SQL
  SELECT, INSERT, UPDATE, and DELETE statements. Setting variables
  can be a way to use SQL query results in lnav commands.
• Added a 'jget' SQLite function that can extract fields from a JSON-
  encoded value.
• Added log formats for the OpenAM identity provider.
• Added a 'clear-highlight' command to clear previous calls to the
  'highlight' command.
• Fixed some performance bugs in indexing JSON log formats. Loading
  times should be at least five times faster.
• Filtering performance should be improved so that enabling/disabling
  filters should be almost instantaneous.
• The filter-in, filter-out, and highlight commands now support
  tab-completion of text in the current view.
• Add a '-i' flag that installs format files in: ~/.lnav/formats/installed

lnav v0.7.0

Features:

• Add the '.schema' SQL command to open a view that displays the schema
  for the internal tables and any attached databases. If lnav was only
  executed with a SQLite database and no text files, this view will open
  by default.
• The scroll bar now indicates the location of errors/warnings, search
  hits, and bookmarks.
• The xterm title is update to reflect the file name for the top line
  in the view.
• Added a "headless" mode so that you can execute commands and run SQL
  queries from the command-line without having to do it from the curses
  UI.
• When doing a search or SQL query, any text that is currently being
  displayed can be tab-completed.
• The '-H' option was added so you can view the internal help text.
• Added the 'g/G' hotkeys to move to the top/bottom of the file.
• Added a 'log_mark' column to the log tables that indicates whether or
  not a log message is bookmarked. The field is writable, so you can
  bookmark lines using an SQL UPDATE query.
• Added syntax-highlighting when editing SQL queries or search regexes.
• Added a "write-json-to" command that writes the result of a SQL query
  to a JSON-formatted file.
• The "elapsed time" column now uses red/green coloring to indicate
  sharp changes in the message rate.
• Added a "set-min-log-level" command to filter out log messages that
  are below a given level.

Fixes:

• Performance improvements.
• Multi-line filtering has been fixed.
• A collator has been added to the log_level column in the log tables
  so that you can write expressions like "log_level > 'warning'".
• The log_time datetime format now matches what is returned by
  "datetime('now')" so that collating works correctly.
• If a search string is not valid PCRE syntax, a search is done for
  the exact string instead of just returning an error.
• Static-linking has been cleaned up.
• OpenSSL is no longer a requirement.
• Alpha support for Windows/cygwin.
• Environment variables can now be accessed in SQL queries using
  the syntax: $VAR_NAME
• An internal log is kept and written out on a crash.
• Partition bookmarks are now tracked separately from regular user
  bookmarks. You can start a partition with the 'partition-name'
  command and remove it with the 'clear-partition' command.
• Improved display of possible matches during tab-completion in the
  command-prompt. The matches are now shown in a separate view and
  pressing tab repeatedly will scroll through the view.
• The "open" command now does shell word expansion for file names.
• More config directory paths have been added: /etc/lnav,
  $prefix/etc/lnav, and directories passed on the command-line with -I.

lnav v0.6.2

Features:

• Word-wrap support.

Fixes:

• Fix some OS X Mavericks build/runtime issues.

lnav v0.6.1

Features:

• Support for JSON-encoded log files.

Fixes:

• Some minor fixes and performance improvements.

lnav v0.6.0

Features:

• Custom log formats and more builtin formats
• Automatic extraction of data from logs
• UI improvements, support for 256 color terminals