From 8ea4fbe58746170c95431b418e8bf50cf57845da Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Fri, 21 Jun 2013 10:39:59 +0200
Subject: Add support for running tests in dynamic multi-database mode

Only possible in the development build system at this stage.
---
 build/import/odb/hxx-cxx.make | 97 ++++++++++++++++++++++++++++++++++++-------
 1 file changed, 82 insertions(+), 15 deletions(-)

diff --git a/build/import/odb/hxx-cxx.make b/build/import/odb/hxx-cxx.make
index a67d6b7..683827e 100644
--- a/build/import/odb/hxx-cxx.make
+++ b/build/import/odb/hxx-cxx.make
@@ -9,45 +9,95 @@
 #
 $(call include,$(bld_root)/cxx/configuration.make)
 
+odb_databases := mysql sqlite pgsql oracle mssql
+
 odb_pattern :=                    \
 $(out_base)/%-odb.$(cxx_s_suffix) \
 $(out_base)/%-odb.$(cxx_h_suffix) \
 $(out_base)/%-odb.$(cxx_i_suffix) \
 $(out_base)/%.sql
 
-$(odb_pattern): odb_options := \
---hxx-suffix .$(cxx_h_suffix)  \
---ixx-suffix .$(cxx_i_suffix)  \
+odb_patterns := $(odb_pattern)
+
+define odb-db-pattern
+odb_$1_pattern :=                         \
+$$(out_base)/%-odb-$1.$$(cxx_s_suffix) \
+$$(out_base)/%-odb-$1.$$(cxx_h_suffix) \
+$$(out_base)/%-odb-$1.$$(cxx_i_suffix) \
+$$(out_base)/%-$1.sql
+
+odb_patterns += $$(odb_$1_pattern)
+
+endef # Trailing newline is important.
+
+$(foreach d,$(odb_databases),$(eval $(call odb-db-pattern,$d)))
+
+$(odb_patterns): odb_options := \
+--hxx-suffix .$(cxx_h_suffix)   \
+--ixx-suffix .$(cxx_i_suffix)   \
 --cxx-suffix .$(cxx_s_suffix)
 
-$(odb_pattern): odb-expand-cpp-options-impl = \
+$(odb_patterns): odb-expand-cpp-options-impl = \
 $(if $1,$(shell sed -e 's%include: \(.*\)%\1%' -e t -e d $1))
 
-$(odb_pattern): odb-expand-cpp-options = \
+$(odb_patterns): odb-expand-cpp-options = \
 $(call odb-expand-cpp-options-impl,$(filter %.cpp-options,$1))
 
-.PRECIOUS: $(odb_pattern)
+# We only check for the long option name to avoid false positives.
+#
+$(odb_pattern): odb-default-database = \
+$(if $(filter --multi-database ,$(odb_options)),--database common )
+
+$(odb_pattern): odb-default-database-message = \
+$(if $(filter --multi-database ,$(odb_options)),[common] )
+
+.PRECIOUS: $(odb_patterns)
 
 ifeq ($(out_base),$(src_base))
 
 $(odb_pattern): $(src_base)/%.$(cxx_h_suffix)
-	$(call message,odb $<,$(odb) $(cpp_options) \
-$(call odb-expand-cpp-options,$^) $(cxx_pp_extra_options) $(odb_options) \
---output-dir $(dir $@) $<)
+	$(call message,odb $(call odb-default-database-message)$<,$(odb) \
+$(cpp_options) $(call odb-expand-cpp-options,$^) $(cxx_pp_extra_options) \
+$(odb_options) $(call odb-default-database)--output-dir $(dir $@) $<)
+
+define odb-db-rule
+$$(odb_$1_pattern): $$(src_base)/%.$$(cxx_h_suffix)
+	$$(call message,odb [$1] $$<,$$(odb) $$(cpp_options) \
+$$(call odb-expand-cpp-options,$$^) $$(cxx_pp_extra_options) $$(odb_options) \
+--database $1 --output-dir $$(dir $$@) $$<)
+
+endef # Trailing newline is important.
 
 else
 
 $(odb_pattern): $(src_base)/%.$(cxx_h_suffix) | $$(dir $$@).
-	$(call message,odb $<,$(odb) $(cpp_options) \
-$(call odb-expand-cpp-options,$^) $(cxx_pp_extra_options) $(odb_options) \
---output-dir $(dir $@) $<)
+	$(call message,odb $(call odb-default-database-message)$<,$(odb) \
+$(cpp_options) $(call odb-expand-cpp-options,$^) $(cxx_pp_extra_options) \
+$(odb_options) $(call odb-default-database)--output-dir $(dir $@) $<)
 
 $(odb_pattern): $(out_base)/%.$(cxx_h_suffix) | $$(dir $$@).
-	$(call message,odb $<,$(odb) $(cpp_options) \
-$(call odb-expand-cpp-options,$^) $(cxx_pp_extra_options) $(odb_options) \
---output-dir $(dir $@) $<)
+	$(call message,odb $(call odb-default-database-message)$<,$(odb) \
+$(cpp_options) $(call odb-expand-cpp-options,$^) $(cxx_pp_extra_options) \
+$(odb_options) $(call odb-default-database) --output-dir $(dir $@) $<)
+
+define odb-db-rule
+$$(odb_$1_pattern): $$(src_base)/%.$$(cxx_h_suffix) | $$$$(dir $$$$@).
+	$$(call message,odb [$1] $$<,$$(odb) $$(cpp_options) \
+$$(call odb-expand-cpp-options,$$^) $$(cxx_pp_extra_options) $$(odb_options) \
+--database $1 --output-dir $$(dir $$@) $$<)
+
+$$(odb_$1_pattern): $$(out_base)/%.$$(cxx_h_suffix) | $$$$(dir $$$$@).
+	$$(call message,odb [$1] $$<,$$(odb) $$(cpp_options) \
+$$(call odb-expand-cpp-options,$$^) $$(cxx_pp_extra_options) $$(odb_options) \
+--database $1 --output-dir $$(dir $$@) $$<)
+
+endef # Trailing newline is important.
 endif
 
+$(foreach d,$(odb_databases),$(eval $(call odb-db-rule,$d)))
+
+# Clean.
+#
 .PHONY: $(out_base)/%-odb.cxx.hxx.clean
 
 $(out_base)/%-odb.cxx.hxx.clean: cxx_s_suffix := $(cxx_s_suffix)
@@ -59,3 +109,20 @@ $(out_base)/%-odb.cxx.hxx.clean:
 	$(call message,rm $$1,rm -f $$1,$(@:.cxx.hxx.clean=.$(cxx_h_suffix)))
 	$(call message,rm $$1,rm -f $$1,$(@:.cxx.hxx.clean=.$(cxx_i_suffix)))
 	$(call message,rm $$1,rm -f $$1,$(@:-odb.cxx.hxx.clean=.sql))
+
+define odb-db-clean-rule
+.PHONY: $$(out_base)/%-odb-$1.cxx.hxx.clean
+
+$$(out_base)/%-odb-$1.cxx.hxx.clean: cxx_s_suffix := $$(cxx_s_suffix)
+$$(out_base)/%-odb-$1.cxx.hxx.clean: cxx_h_suffix := $$(cxx_h_suffix)
+$$(out_base)/%-odb-$1.cxx.hxx.clean: cxx_i_suffix := $$(cxx_i_suffix)
+
+$$(out_base)/%-odb-$1.cxx.hxx.clean:
+	$$(call message,rm $$$$1,rm -f $$$$1,$$(@:.cxx.hxx.clean=.$$(cxx_s_suffix)))
+	$$(call message,rm $$$$1,rm -f $$$$1,$$(@:.cxx.hxx.clean=.$$(cxx_h_suffix)))
+	$$(call message,rm $$$$1,rm -f $$$$1,$$(@:.cxx.hxx.clean=.$$(cxx_i_suffix)))
+	$$(call message,rm $$$$1,rm -f $$$$1,$$(@:-odb-$1.cxx.hxx.clean=-$1.sql))
+
+endef # Trailing newline is important.
+
+$(foreach d,$(odb_databases),$(eval $(call odb-db-clean-rule,$d)))
-- 
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