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| author | John Soo <jsoo1@asu.edu> | 2020-11-04 07:51:52 -0800 |
|---|---|---|
| committer | Ludovic Courtès <ludo@gnu.org> | 2020-11-29 23:55:57 +0100 |
| commit | 58be9e0bf1e58131e4e8d2b74f41b7b8e154b4b8 (patch) | |
| tree | 3429aa3a0ca874662b64567e18a6a7c831963098 /doc | |
| parent | e1c81203ca9aa8a6dedb7c539d3ff845626aadcc (diff) | |
| download | guix-58be9e0bf1e58131e4e8d2b74f41b7b8e154b4b8.tar guix-58be9e0bf1e58131e4e8d2b74f41b7b8e154b4b8.tar.gz | |
processes: Add '--format' and the "normalized" format.
* guix/scripts/processes.scm (lock->recutils): New procedure.
(daemon-session->recutils): Use it.
(daemon-sessions->recutils, session-key->recutils)
(session-scalars->normalized-record)
(child-process->normalized-record)
(daemon-sessions->normalized-record): New procedures.
(session-rec-type, lock-rec-type, child-process-rec-type)
(%available-formats): New variables.
(list-formats): New procedure.
(%options, show-help): Add '--format'.
(%default-options): New variable.
(guix-processes): Use 'parse-command-line' instead of 'args-fold*'.
Honor the 'format' value in OPTIONS.
* doc/guix.texi (Invoking guix processes): Document '--format'.
Signed-off-by: Ludovic Courtès <ludo@gnu.org>
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/guix.texi | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/doc/guix.texi b/doc/guix.texi index 7cef2371ad..e7277fc9ee 100644 --- a/doc/guix.texi +++ b/doc/guix.texi @@ -12899,6 +12899,45 @@ ClientPID: 19419 ClientCommand: cuirass --cache-directory /var/cache/cuirass @dots{} @end example +Additional options are listed below. + +@table @code +@item --format=@var{format} +@itemx -f @var{format} +Produce output in the specified @var{format}, one of: + +@table @code +@item recutils +The default option. It outputs a set of Session recutils records +that include each @code{ChildProcess} as a field. + +@item normalized +Normalize the output records into record sets (@pxref{Record Sets,,, +recutils, GNU recutils manual}). Normalizing into record sets allows +joins across record types. The example below lists the PID of each +@code{ChildProcess} and the associated PID for @code{Session} that +spawned the @code{ChildProcess} where the @code{Session} was started +using @command{guix build}. + +@example +$ guix processes --format=normalized | \ + recsel \ + -j Session \ + -t ChildProcess \ + -p Session.PID,PID \ + -e 'Session.ClientCommand ~ "guix build"' +PID: 4435 +Session_PID: 4278 + +PID: 4554 +Session_PID: 4278 + +PID: 4646 +Session_PID: 4278 +@end example +@end table +@end table + @node System Configuration @chapter System Configuration |