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Diffstat (limited to 'doc/info/chap')
| -rw-r--r-- | doc/info/chap/hooks.texinfo | 44 |
1 files changed, 43 insertions, 1 deletions
diff --git a/doc/info/chap/hooks.texinfo b/doc/info/chap/hooks.texinfo index 6ade0d9..f104950 100644 --- a/doc/info/chap/hooks.texinfo +++ b/doc/info/chap/hooks.texinfo @@ -1,5 +1,47 @@ @node Hooks @chapter Hooks -TODO +@command{satd} runs a hook script, if available, whenever +something important happens. The pathname of the hook +script is determined by the environment variable +@env{SAT_HOOK_PATH}, see @ref{Invoking} for its fallbacks. + +The script is run when a job as run and removed. The script +will run with an environment identical to the job, which is +idential to the environment @command{sat} had when the job +was queued. The first argument, excluding the zeroth argument +(the pathname of the script) in the hook script's command +line will be the action that is performed, the following +arguments are job's command line arguments including the +zeroth argument (the name of the command). Possible actions +are: +@table @code +@item expired +The job will run momentarily as scheduled. +@item forced +The job will run momentarily due to use of @command{satr}. +@item failure +The job could not be executed or failed. +@item success +The job ran successfully. +@item removed +The job with removed using @command{satrm}. +@end table +@noindent +@command{satd} ensure that the script is not run between +@code{expired} and @code{forced} and corresponding +@code{failure} or @code{success}. + +A very simple way to inform when these actions take place +is to use the script +@example +#!/bin/sh +action="$1" +shift 1 +exec wall -n "sat: $action $JOBNAME ($*)" +@end example +@noindent +and always set the environment variable @env{JOBNAME} +to a string that identifies the job when queuing it +using @command{sat}. |