sub makefiles: standardize names and add to build-pkg

1 files changed, 79 insertions, 0 deletions

diff --git a/mxe.updates.mk b/mxe.updates.mk
new file mode 100644
index 0000000..9a4455d
--- /dev/null
+++ b/mxe.updates.mk
@@ -0,0 +1,79 @@
+# This file is part of MXE. See LICENSE.md for licensing information.
+
+# Generic updater
+# $(call GET_LATEST_VERSION, base url[, prefix, ext, filter, separator])
+#  base url : required page returning list of versions
+#               e.g https://ftp.gnu.org/gnu/libfoo
+#  prefix   : segment before version
+#               defaults to lastword of url with dash i.e. `libfoo-`
+#  ext      : segment ending version - default `\.tar`
+#  filter   : `grep -i` filter-out pattern - default alpha\|beta\|rc
+#  separator: transform char to `.` - typically `_`
+#
+# test changes with:
+# make check-get-latest-version
+#
+# and update tools/skeleton.py with usage notes
+
+define GET_LATEST_VERSION
+    $(WGET) -q -O- '$(strip $(1))' | \
+    $(SED) -n 's,.*<a href=".*$(strip $(or $(2),$(lastword $(subst /,$(space),$(1)))-))\([0-9][^"]*\)$(strip $(or $(3),\.tar)).*,\1,p' | \
+    grep -vi '$(strip $(or $(4),alpha\|beta\|rc))' | \
+    tr '$(strip $(5))' '.' | \
+    $(SORT) -V | \
+    tail -1
+endef
+
+ALL_DIRS := $(MXE_PLUGIN_DIRS) $(shell find $(realpath $(TOP_DIR)/plugins) -type d)
+GET_LATEST_VERSION_PKGS := $(sort \
+    $(basename $(notdir $(shell grep -l GET_LATEST_VERSION -r $(ALL_DIRS)))))
+
+.PHONY: check-get-latest-version
+check-get-latest-version:
+	@$(MAKE) -f '$(MAKEFILE)' \
+	    $(addprefix check-update-package-,$(GET_LATEST_VERSION_PKGS)) \
+	    MXE_PLUGIN_DIRS='$(ALL_DIRS)'
+
+COMPARE_VERSIONS = $(strip \
+    $(if $($(1)_BRANCH),$(call seq,$($(1)_VERSION),$(2)),\
+    $(filter $(2),$(shell printf '$($(1)_VERSION)\n$(2)' | $(SORT) -V | head -1))))
+
+.PHONY: update
+define UPDATE
+    $(if $(2),
+        $(if $(filter $($(1)_IGNORE),$(2)),
+            $(info IGNORED  $(1)  $(2)),
+            $(if $(COMPARE_VERSIONS),
+                $(if $(filter $(2),$($(1)_VERSION)),
+                    $(info .        $(1)  $(2)),
+                    $(info OLD      $(1)  $($(1)_VERSION) --> $(2) ignoring)),
+                $(info NEW      $(1)  $($(1)_VERSION) --> $(2))
+                $(if $(findstring undefined, $(origin UPDATE_DRYRUN)),
+                    $(SED) -i 's/^\([^ ]*_VERSION *:=\).*/\1 $(2)/' '$($(1)_MAKEFILE)'
+                    $(MAKE) -f '$(MAKEFILE)' 'update-checksum-$(1)' \
+                        || { $(SED) -i 's/^\([^ ]*_VERSION *:=\).*/\1 $($(1)_VERSION)/' '$($(1)_MAKEFILE)'; \
+                             exit 1; }))),
+        $(info Unable to update version number of package $(1) \
+            $(newline)$(newline)$($(1)_UPDATE)$(newline)))
+
+endef
+update:
+	$(foreach PKG,$(PKGS),\
+	    $(and $($(PKG)_UPDATE),$(call UPDATE,$(PKG),$(shell $($(PKG)_UPDATE)))))
+
+update-package-%:
+	$(if $(call set_is_member,$*,$(PKGS)), \
+	    $(and $($*_UPDATE),$(call UPDATE,$*,$(shell $($*_UPDATE)))), \
+	    $(error Package $* not found))
+	    @echo -n
+
+check-update-package-%: UPDATE_DRYRUN = true
+check-update-package-%: update-package-% ;
+
+update-checksum-%: MXE_NO_BACKUP_DL = true
+update-checksum-%: SKIP_CHECHSUM = true
+update-checksum-%:
+	$(if $(call set_is_member,$*,$(PKGS)), \
+	    $(call DOWNLOAD_PKG_ARCHIVE,$*) && \
+	    $(SED) -i 's/^\([^ ]*_CHECKSUM *:=\).*/\1 '"`$(call PKG_CHECKSUM,$*)`"'/' '$($*_MAKEFILE)', \
+	    $(error Package $* not found))