Rework stripping binaries when copying to containers

We now only attempt to strip binaries, by detecting the
LINKFLAGS variable on the targets.

CopySetHaikuRevision now also forwards LINKFLAGS
to revisioned binaries.

Introduce separate AppendToContainerCopyFilesScriptStripFile actions
which are used for copying and stripping, and avoids many useless
shell tests.

When asked to strip binaries, they are detected and handled
individually for simplicity.

Note we still don't keep resources and attributes when stripping.

build/jam/FileRules

@@ -341,6 +341,11 @@ rule CopySetHaikuRevision target : source
 
 	PropagateContainerUpdateTargetFlags $(target) : $(source) ;
 
+	if [ on $(source) return $(LINKFLAGS) ] {
+		# hint the target as a (strippable) binary
+		LINKFLAGS on $(target) = [ on $(source) return $(LINKFLAGS) ] ;
+	}
+
 	local revisionFile = [ DetermineHaikuRevision ] ;
 
 	Depends $(target)

build/jam/ImageRules

@@ -676,24 +676,32 @@ rule CreateContainerCopyFilesScript container : script
 		# concurrent writes to the script file when building with multiple
 		# jobs.
 
+	local needStrip = [ on $(container)
+		return $(HAIKU_CONTAINER_STRIP_BINARIES) ] ;
+		# We are asked to strip the binaries when copying them.
+
 	local dir ;
 	for dir in [ on $(container) return $(HAIKU_INSTALL_DIRECTORIES) ] {
 		# filter the targets that shall be renamed; they have to be copied
 		# individually
+		# we also handle binary separately when asked to strip them
 		local destTargets = [ on $(dir) return $(TARGETS_TO_INSTALL) ] ;
 		local remainingTargets ;
 		local destTarget ;
 		for destTarget in $(destTargets) {
 			local target = [ on $(destTarget) return $(TARGET) ] ;
 			local name = $(destTarget:G=) ;
-			if $(name) != $(target:BS) {
+			local isBinary = [ on $(target) return $(LINKFLAGS) ] ;
+			local doStrip ;
+			if $(needStrip) && $(isBinary) {
+				doStrip = 1 ;
+			}
+			if $(name) != $(target:BS) || $(doStrip) {
 				# use a unique dummy target for this file, on which we
 				# can define the TARGET_DIR variable
 				local dummyTarget = $(script)-dummy-$(dir:G=)-$(target) ;
 				NotFile $(dummyTarget) ;
 				TARGET_DIR on $(dummyTarget) = $(dir:G=) ;
-				DO_STRIP on $(dummyTarget) = [ on $(container)
-					return $(HAIKU_CONTAINER_STRIP_BINARIES) ] ;
 
 				local nameFunction
 					= [ on $(destTarget) return $(NAME_FUNCTION) ] ;
@@ -709,8 +717,13 @@ rule CreateContainerCopyFilesScript container : script
 				Depends $(script) : $(dummyTarget) ;
 				serializationDependency = $(dummyTarget) ;
 
+				if $(doStrip) {
+					AppendToContainerCopyFilesScriptStripFile $(dummyTarget)
+						: $(initScript) $(target) ;
+				} else {
 					AppendToContainerCopyFilesScriptSingleFile $(dummyTarget)
 						: $(initScript) $(target) ;
+				}
 			} else {
 				remainingTargets += $(target) ;
 			}
@@ -723,8 +736,6 @@ rule CreateContainerCopyFilesScript container : script
 			local dummyTarget = $(script)-dummy-$(dir:G=) ;
 			NotFile $(dummyTarget) ;
 			TARGET_DIR on $(dummyTarget) = $(dir:G=) ;
-			DO_STRIP on $(dummyTarget) = [ on $(container)
-				return $(HAIKU_CONTAINER_STRIP_BINARIES) ] ;
 
 			Depends $(dummyTarget) : $(initScript) $(targets)
 				$(serializationDependency) ;
@@ -767,11 +778,6 @@ actions piecemeal AppendToContainerCopyFilesScript bind OUTPUT_SCRIPT
 {
 	echo \$cp "\"\${sPrefix}$(2)\"" "\"\${tPrefix}$(TARGET_DIR)\"" \
 		>> $(OUTPUT_SCRIPT)
-
-	if [ -n "$(DO_STRIP:E)" ]; then
-		echo \$strip "\"\${tPrefix}$(TARGET_DIR)/$(2:BS)\"" "2>/dev/null" \
-			"|| true" >> $(OUTPUT_SCRIPT)
-	fi
 }
 
 
@@ -782,13 +788,23 @@ actions AppendToContainerCopyFilesScriptSingleFile
 			>> $(2[1])
 	fi
 
+	echo \$cp "\"\${sPrefix}$(2[2])\"" \
+		"\"\${tPrefix}$(TARGET_DIR)/$(INSTALL_TARGET_NAME)\"" >> $(2[1])
+}
+
+
+actions AppendToContainerCopyFilesScriptStripFile
+{
+	if [ -n "$(NAME_FUNCTION:E)" ]; then
+		echo "name=\`$(NAME_FUNCTION:E) \"$(2[2])\" 2> /dev/null \` || exit 1" \
+			>> $(2[1])
+	fi
+
 	echo \$cp "\"\${sPrefix}$(2[2])\"" \
 		"\"\${tPrefix}$(TARGET_DIR)/$(INSTALL_TARGET_NAME)\"" >> $(2[1])
 
-	if [ -n "$(DO_STRIP:E)" ]; then
 	echo \$strip "\"\${tPrefix}$(TARGET_DIR)/$(INSTALL_TARGET_NAME)\"" \
 		"2>/dev/null" "|| true" >> $(2[1])
-	fi
 }