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  • New version 5 of pw ("Pipe Watch").

    From Kaz Kylheku@21:1/5 to All on Fri Jun 9 18:28:34 2023
    https://www.kylheku.com/cgit/pw/

    pw is an interactive tool (requiring a Unix TTY environment with
    an ANSI terminal) for monitoring text spewages in real time.

    The paradigm in pw is to pass text through a line-oriented FIFO buffer,
    samples of which are displayed. There are filtering and triggered
    snapshot features, split screen mechanisms for dealing with long lines,
    viewing character-level deltas between snapshots and more.

    pw supports being backgrounded with job control. When executing in the
    job control background, it refrains from updating the terminal display;
    yet it keeps peforming I/O, and all of its filtering and triggering
    features are active. When brought into the foreground, it will refresh
    the display with the latest data. This makes pw userful as a front end
    for long-running batch programs that generate a lot of output (e.g.
    debug traces).

    pw is diferent form pv (Pipe View) in that it visualizes the
    data itself, rather than statistics about it such as data
    transfer rate; it is for drilling into the data, rather than
    monitoring progress. It is oriented toward textual data such as
    logs.

    * The latest version 5 of pw now supports pass-through mode.
    Whereas pw previously served as a pipeline endpoint can now be
    inserted into the middle of a pipeline, or, as the last pipe element,
    have its output redirected to a file. It then passes through
    everything in addition to doing all the usual interactive monitoring.
    Pass-through mode is automatically in effect whenever the standard
    output file descriptor refers to something other than the controlling
    terminal. When standard output is the controlling terminal, then pw
    is in the original discard mode: data from standard input is
    passed through the FIFO and discarded, so that all that goes to the
    terminal are pw's controlled display updates.

    * Other recent developments are that pw has been ported to
    MacOS. It previously didn't work due to requiring a poll
    funtion that works on TTY devices.

    * A minor new feature is that in highlight mode, the line numbers
    of lines which triggered the snapshot capture are shown in
    inverse video, making it easier to see what is trigerring.


    --
    TXR Programming Language: http://nongnu.org/txr
    Cygnal: Cygwin Native Application Library: http://kylheku.com/cygnal
    Mastodon: @[email protected]

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Tony Oliver@21:1/5 to Kaz Kylheku on Sat Jun 10 11:37:43 2023
    On Friday, 9 June 2023 at 19:28:40 UTC+1, Kaz Kylheku wrote:
    https://www.kylheku.com/cgit/pw/

    pw is an interactive tool (requiring a Unix TTY environment with
    an ANSI terminal) for monitoring text spewages in real time.

    The paradigm in pw is to pass text through a line-oriented FIFO buffer, samples of which are displayed. There are filtering and triggered
    snapshot features, split screen mechanisms for dealing with long lines, viewing character-level deltas between snapshots and more.

    pw supports being backgrounded with job control. When executing in the
    job control background, it refrains from updating the terminal display;
    yet it keeps peforming I/O, and all of its filtering and triggering
    features are active. When brought into the foreground, it will refresh
    the display with the latest data. This makes pw userful as a front end
    for long-running batch programs that generate a lot of output (e.g.
    debug traces).

    pw is diferent form pv (Pipe View) in that it visualizes the
    data itself, rather than statistics about it such as data
    transfer rate; it is for drilling into the data, rather than
    monitoring progress. It is oriented toward textual data such as
    logs.

    * The latest version 5 of pw now supports pass-through mode.
    Whereas pw previously served as a pipeline endpoint can now be
    inserted into the middle of a pipeline, or, as the last pipe element,
    have its output redirected to a file. It then passes through
    everything in addition to doing all the usual interactive monitoring. Pass-through mode is automatically in effect whenever the standard
    output file descriptor refers to something other than the controlling terminal. When standard output is the controlling terminal, then pw
    is in the original discard mode: data from standard input is
    passed through the FIFO and discarded, so that all that goes to the
    terminal are pw's controlled display updates.

    * Other recent developments are that pw has been ported to
    MacOS. It previously didn't work due to requiring a poll
    funtion that works on TTY devices.

    * A minor new feature is that in highlight mode, the line numbers
    of lines which triggered the snapshot capture are shown in
    inverse video, making it easier to see what is trigerring.


    --
    TXR Programming Language: http://nongnu.org/txr
    Cygnal: Cygwin Native Application Library: http://kylheku.com/cygnal Mastodon: @[email protected]

    "Spewage"?

    No thanks.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)