[glib/wip/gapplication-22: 8/28] Bug 619038 - increase gsettings.m4 power

[Colin Walters <walters src gnome org>]

commit 0117bead595b8ea7057f0fb00c0f145042706e56
Author: Ryan Lortie <desrt desrt ca>
Date:   Tue May 18 18:28:39 2010 -0400

    Bug 619038 - increase gsettings.m4 power
    
    handle schema checking, installation, uninstallation, cleaning

 docs/reference/gio/migrating-gconf.xml |   21 ++++-----
 m4macros/gsettings.m4                  |   71 +++++++++++++++++++++++---------
 2 files changed, 61 insertions(+), 31 deletions(-)
---
diff --git a/docs/reference/gio/migrating-gconf.xml b/docs/reference/gio/migrating-gconf.xml
index ef22430..ae91424 100644
--- a/docs/reference/gio/migrating-gconf.xml
+++ b/docs/reference/gio/migrating-gconf.xml
@@ -228,23 +228,22 @@ produces a <filename>org.gnome.font-rendering.gschema.xml</filename> file with t
         Schemas are compiled into binary form by the
         <link linkend="glib-compile-schemas">glib-compile-schemas</link> utility.
         GIO provides a <literal>glib_compile_schemas</literal>
-        variable for the schema compiler, which can be used in
-        <filename>configure.in</filename> as follows:
+        variable for the schema compiler.
+      </para>
+      <para>
+        You can ignore all of this by using the provided m4 macros.  To
+        do this, add to your <filename>configure.ac</filename>:
 <programlisting>
 GLIB_GSETTINGS
 </programlisting>
         The corresponding <filename>Makefile.am</filename> fragment looks like
         this:
 <programlisting>
-# gsettingsschemadir and gschema_compile are defined by the GLIB_GSETTINGS
-# macro in configure.ac
-gsettingsschema_DATA = my.app.gschema.xml
-# This rule will check your schemas for validity before installation
- GSETTINGS_CHECK_RULE@
-if GSETTINGS_SCHEMAS_INSTALL
-install-data-hook:
-	$(GLIB_COMPILE_SCHEMAS) $(DESTDIR)$(gsettingsschemadir)
-endif
+# gsettings_SCHEMAS is a list of all the schemas you want to install
+gsettings_SCHEMAS = my.app.gschema.xml
+
+# include the appropriate makefile rules for schema handling
+ GSETTINGS_RULES@
 </programlisting>
       </para>
 
diff --git a/m4macros/gsettings.m4 b/m4macros/gsettings.m4
index aeb6470..35cade8 100644
--- a/m4macros/gsettings.m4
+++ b/m4macros/gsettings.m4
@@ -5,36 +5,67 @@ dnl
 
 AC_DEFUN([GLIB_GSETTINGS],
 [
-  AC_ARG_ENABLE(schemas-install,
-	AC_HELP_STRING([--disable-schemas-install],
-		       [Disable installation of GSettings schemas]),
-     [case ${enableval} in
-       yes|no) ;;
-       *) AC_MSG_ERROR([bad value ${enableval} for --enable-schemas-install]) ;;
-      esac])
-  AM_CONDITIONAL([GSETTINGS_SCHEMAS_INSTALL], [test "$enable_schemas_install" != no])
-
+  m4_pattern_allow([AM_V_GEN])
+  AC_ARG_ENABLE(schemas-compile,
+                AC_HELP_STRING([--disable-schemas-compile],
+                               [Disable regeneration of gschemas.compiled on install]),
+                [case ${enableval} in
+                  yes) GSETTINGS_DISABLE_SCHEMAS_COMPILE=""  ;;
+                  no)  GSETTINGS_DISABLE_SCHEMAS_COMPILE="1" ;;
+                  *) AC_MSG_ERROR([bad value ${enableval} for --enable-schemas-compile]) ;;
+                 esac])
+  AC_SUBST([GSETTINGS_DISABLE_SCHEMAS_COMPILE])
   PKG_PROG_PKG_CONFIG([0.16])
-
   AC_SUBST(gsettingsschemadir, [${datadir}/glib-2.0/schemas])
   AC_SUBST(GLIB_COMPILE_SCHEMAS, `$PKG_CONFIG --variable glib_compile_schemas gio-2.0`)
   if test "x$GLIB_COMPILE_SCHEMAS" = "x"; then
     AC_MSG_ERROR([glib-compile-schemas not found.])
   fi
 
-  GSETTINGS_CHECK_RULE='
-.PHONY : check-gsettings-schema
+  GSETTINGS_RULES='
+.PHONY : uninstall-gsettings-schemas install-gsettings-schemas clean-gsettings-schemas
 
-check-gsettings-schema: gsettings_schema_validate_stamp
-MOSTLYCLEANFILES += gsettings_schema_validate_stamp
-gsettings_schema_validate_stamp: *.gschema.xml
-	$(GLIB_COMPILE_SCHEMAS) --dry-run $(addprefix --schema-file=,$?)
-	touch [$]@
+mostlyclean-am: clean-gsettings-schemas
 
-all: check-gsettings-schema
-'
+%.gschema.valid: %.gschema.xml
+	$(AM_V_GEN) $(GLIB_COMPILE_SCHEMAS) --dry-run --schema-file=$^ && touch [$]@
+
+all-am: $(gsettings_SCHEMAS:.xml=.valid)
+uninstall-am: uninstall-gsettings-schemas
+install-data-am: install-gsettings-schemas
+
+gsettings__base_list = \
+  sed "$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;s/\n/ /g" | \
+  sed "$$!N;$$!N;$$!N;$$!N;s/\n/ /g"
 
-  _GSETTINGS_SUBST(GSETTINGS_CHECK_RULE)
+install-gsettings-schemas: $(gsettings_SCHEMAS:.xml=.valid)
+	@$(NORMAL_INSTALL)
+	test -z "$(gsettingsschemadir)" || $(MKDIR_P) "$(DESTDIR)$(gsettingsschemadir)"
+	@list='\''$(gsettings_SCHEMAS)'\''; test -n "$(gsettingsschemadir)" || list=; \
+	for p in $$list; do \
+	  if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
+	  echo "$$d$$p"; \
+	done | $(gsettings__base_list) | \
+	while read files; do \
+	  echo " $(INSTALL_DATA) $$files '\''$(DESTDIR)$(gsettingsschemadir)'\''"; \
+	  $(INSTALL_DATA) $$files "$(DESTDIR)$(gsettingsschemadir)" || exit $$?; \
+	done
+	test -n "$(GSETTINGS_DISABLE_SCHEMAS_COMPILE)$(DESTDIR)" || $(GLIB_COMPILE_SCHEMAS) $(gsettingsschemadir)
+
+uninstall-gsettings-schemas:
+	@$(NORMAL_UNINSTALL)
+	@list='\''$(gsettings_SCHEMAS)'\''; test -n "$(gsettingsschemadir)" || list=; \
+	files=`for p in $$list; do echo $$p; done | sed -e '\''s|^.*/||'\''`; \
+	test -n "$$files" || exit 0; \
+	echo " ( cd '\''$(DESTDIR)$(gsettingsschemadir)'\'' && rm -f" $$files ")"; \
+	cd "$(DESTDIR)$(gsettingsschemadir)" && rm -f $$files
+	test -n "$(GSETTINGS_DISABLE_SCHEMAS_COMPILE)$(DESTDIR)" || $(GLIB_COMPILE_SCHEMAS) $(gsettingsschemadir)
+
+clean-gsettings-schemas:
+	rm -f $(gsettings_SCHEMAS:.xml=.valid)
+
+'
+  _GSETTINGS_SUBST(GSETTINGS_RULES)
 ])
 
 dnl _GSETTINGS_SUBST(VARIABLE)