[patch] cygport-0.2.9 custom commands

[Charles Wilson <cygwin at cwilson dot fastmail dot fm>]

Forward port to latest release.

For further history and justifiation of this patch, see 
http://cygwin.com/ml/cygwin/2007-01/msg00113.html and follow the 
embedded links and threads.

--
Chuck

2007-02-05  Charles Wilson  <...>

	* bin/cygport.in (custom_dummy_core): new function, used to test
	custom-command framework
	(custom_dummy): ditto
	(main): add implentation for custom-show) and customN-*)


Index: bin/cygport.in
===================================================================
RCS file: /cvsroot/cygwin-ports/cygport/bin/cygport.in,v
retrieving revision 1.53
diff -u -r1.53 cygport.in
--- bin/cygport.in	5 Feb 2007 03:28:43 -0000	1.53
+++ bin/cygport.in	5 Feb 2007 21:36:30 -0000
@@ -1650,11 +1650,38 @@
 
 ################################################################################
 #
+# test target for custom command hooks
+#
+################################################################################
+custom_dummy_core() {
+	local -i my_c=0
+	local -i my_argc=$#
+
+	while (( my_c < my_argc ))
+	do
+		my_c+=1
+		echo "${my_c}: $1"
+		shift
+	done
+}
+custom_dummy() {
+	inform "custom_dummy called with $# args"
+	custom_dummy_core "$@"
+}
+export -f custom_dummy_core custom_dummy
+readonly -f custom_dummy_core custom_dummy
+
+################################################################################
+#
 # End of functions
 #
 ################################################################################
 
 declare -i arg_n=2
+declare -i custom_arg_n
+declare -i custom_argc
+declare -a custom_args
+declare -x custom_cmd
 
 while (( arg_n < argc ))
 do
@@ -1731,6 +1758,46 @@
 			finish;
 			_status=$?;
 			;;
+		custom-show)
+			for fnc in $(set | sed -n '/()/s/()//p')
+			do
+				if test "$(type -t ${fnc})" == "function"
+				then
+					echo " ${fnc}"
+				fi
+			done
+			;;
+		custom0-* | custom1-* | custom2-* | custom3-* | custom4-* | \
+		custom5-* | custom6-* | custom7-* | custom8-* | custom9-* )
+			custom_argc=${argv[${arg_n}]:6:1}
+			custom_cmd=${argv[${arg_n}]:8}
+			if [ -z "${custom_cmd}" ]
+			then
+				error "${argv[${arg_n}]}* command has no target following the 'custom${custom_argc}-'"
+			fi
+
+			# consume arguments
+			custom_arg_n=0
+			while (( custom_arg_n < custom_argc )) && (( arg_n+1 < argc ))
+			do
+				arg_n+=1
+				custom_args[${custom_arg_n}]="${argv[${arg_n}]}"
+				custom_arg_n+=1
+			done
+			if (( custom_arg_n < custom_argc ))
+			then
+				error "custom${custom_argc} command ${custom_cmd}: not enough arguments"
+			fi
+			
+			if test "$(type -t ${custom_cmd})" == "function"
+			then
+				__stage ${custom_cmd} && eval "${custom_cmd} ${custom_args[@]}"
+				_status=$?;
+			else
+				error "${custom_cmd} is not a shell function"
+			fi
+			unset custom_args
+			;;
 		help)
 			__show_help;
 			exit 0;

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