Changeset 597 for tea4cups

Timestamp:

03/16/05 21:16:13 (20 years ago)

Author:

jerome

Message:

Did some work for pre and post hooks

Location:

tea4cups/trunk

Files:

• tea4cups (modified) (3 diffs)
• tea4cups.conf (modified) (3 diffs)

tea4cups/trunk/tea4cups

@@ -37 +37 @@
 from struct import unpack
 
-version = "1.00"
+version = "1.5alpha"
 
 class TeeError(Exception):
@@ -278 +278 @@
                 raise ConfigError, "Option %s not found in section [%s] of %s" % (option, printqueuename, self.conffile)
                 
-    def enumTeeBranches(self, printqueuename) :
-        """Returns the list of branches for a particular section's Tee."""
-        try :
-            globalbranches = [ (k, v) for (k, v) in self.config.items("global") if k.startswith("tee_") ]
+    def enumBranches(self, printqueuename, branchtype="tee") :
+        """Returns the list of branchtypes branches for a particular section's."""
+        branchbasename = "%s_" % branchtype.lower()
+        try :
+            globalbranches = [ (k, v) for (k, v) in self.config.items("global") if k.startswith(branchbasename) ]
         except ConfigParser.NoSectionError, msg :    
             raise ConfigError, "Invalid configuration file : %s" % msg
         try :
-            sectionbranches = [ (k, v) for (k, v) in self.config.items(printqueuename) if k.startswith("tee_") ]
+            sectionbranches = [ (k, v) for (k, v) in self.config.items(printqueuename) if k.startswith(branchbasename) ]
         except ConfigParser.NoSectionError, msg :    
             self.logInfo("No section for print queue %s : %s" % (printqueuename, msg))
@@ -529 +530 @@
         exitcode = 0
         signal.signal(signal.SIGTERM, self.sigtermHandler)
-        branches = self.enumTeeBranches(self.PrinterName)
+        prehooks = self.enumBranches(self.PrinterName, "prehook")
+        branches = self.enumBranches(self.PrinterName, "tee")
+        prehooks = self.enumBranches(self.PrinterName, "posthook")
         if self.isTrue(self.getPrintQueueOption(self.PrinterName, "serialize", ignore=1)) :
             self.logDebug("Serialized Tees")

tea4cups/trunk/tea4cups.conf

@@ -49 +49 @@
 # The value defined in a print queue section takes precedence over the
 # value defined in the [global] section.
+# This value also applies to prehooks and posthooks (see below)
 # serialize : yes
 
-# When executing the contents of a tee directive, tea4cups makes
-# the following environment variables available to your own commands :
+# When executing the contents of a tee, prehook or posthook directive, 
+# tea4cups makes the following environment variables available to your
+# own commands :
 #
 # TEAPRINTERNAME : The print queue name.
@@ -72 +74 @@
         
 # Now defines some default tees which will always be launched
+# at the same time that the job's datas are being sent to the 
+# printer.
 # The tee names are completely free BUT THEY MUST BEGIN WITH 'tee_'
 #
@@ -77 +81 @@
 #tee_0 : cat $TEADATAFILE >/tmp/$TEAJOBID.prn
 #tee_pdf : cat $TEADATAFILE | su -c "lp -dPDFGenerator" $TEAUSERNAME
+
+# Some hooks : prehooks and posthooks
+#
+# Contrary to tees, prehooks are guaranteed to be launched 
+# BEFORE the job's datas are sent to the printer, and 
+# posthooks are guaranteed to be launched AFTER the job's
+# datas have been sent to the printer.
+#
+# prehook names are completely free BUT THEY MUST BEGIN WITH 'prehook_'
+# posthook names are completely free BUT THEY MUST BEGIN WITH 'posthook_'
+#
+# An additionnal environment variable is made available to posthooks,
+# named TEASTATUS which contains the exitcode of the real CUPS backend.
+# The normal value is 0, meaning that the real CUPS backend exited
+# successfully. Any other value indicates that a problem occured
+# in the CUPS backend which handles the transmission of the job
+# to the printer.
+# 
+# prehook_0 : echo "Your print job has been accepted" | smbclient -M $TEAUSERNAME
+# posthook_0 : echo "Your print job has been printed" | smbclient -M $TEAUSERNAME
+
 
 # Sample section for print queue HP2100