image.in: added groups2lists()

NB: PKGDIR might be overridden now so that these functions can be used within both metaprofile and generated profile contexts; this isn't clean but I couldn't come up with anything better so far.

image.in: added groups2lists()
cbbc23ed · Michael Shigorin · 85c1a0f2 · cbbc23ed
Commit cbbc23ed authored Apr 07, 2016 by Michael Shigorin
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functions.mk image.in/functions.mk +10 -1

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--- a/image.in/functions.mk
+++ b/image.in/functions.mk
 # globals
-PKGDIR := $(GLOBAL_BUILDDIR)/pkg
+PKGDIR ?= $(GLOBAL_BUILDDIR)/pkg

 # duplicated from metaprofile makefiles for the sake of "local" builds
 ARCH ?= $(shell arch | sed 's/i686/i586/; s/armv.*/arm/; s/ppc.*/ppc/')
@@ -20,6 +20,15 @@ profile  = $(addprefix $(PKGDIR)/,$(call rprofile,$(1)))
 # map first argument (a function) onto second one (an argument list)
 map = $(foreach a,$(2),$(call $(1),$(a)))

+# happens at least twice, and variables are the same by design
+groups2lists = $(shell $(groups2lists_body))
+define groups2lists_body
+{ if [ -n "$(THE_GROUPS)$(MAIN_GROUPS)" ]; then \
+	  sed -rn 's,^X-Alterator-PackageList=(.*)$$,\1,p' \
+		$(call map,group,$(THE_GROUPS) $(MAIN_GROUPS)); \
+fi; }
+endef
+
 # kernel package list generation; see also #24669
 NULL :=
 SPACE := $(NULL) # the officially documented way of getting a space