Initial setup for mod audio builds, WIP

Signed-off-by: falkTX <falktx@falktx.com>

build-mod-plugin.sh

@@ -0,0 +1,35 @@
+#!/bin/bash
+
+set -e
+
+cd $(dirname ${0})
+PAWPAW_ROOT="${PWD}"
+
+# ---------------------------------------------------------------------------------------------------------------------
+
+target="${1}"
+plugin="${2}"
+
+if [ -z "${target}" ] || [ -z "${plugin}" ]; then
+    echo "usage: ${0} <target> <plugin>"
+    exit 1
+fi
+
+# TODO check that bootstrap.sh has been run
+
+# ---------------------------------------------------------------------------------------------------------------------
+# source setup code
+
+PAWPAW_QUIET=1
+source local.env "${target}"
+
+# ---------------------------------------------------------------------------------------------------------------------
+
+export CMAKE
+export PAWPAW_BUILDDIR
+export PAWPAW_DOWNLOADDIR
+export PAWPAW_PREFIX
+
+make -f setup/mod-audio/builder.mk pkgname="${plugin}"
+
+# ---------------------------------------------------------------------------------------------------------------------

setup/mod-audio/builder.mk

@@ -0,0 +1,136 @@
+
+# Case conversion macros. This is inspired by the 'up' macro from gmsl
+# (http://gmsl.sf.net). It is optimised very heavily because these macros
+# are used a lot. It is about 5 times faster than forking a shell and tr.
+#
+# The caseconvert-helper creates a definition of the case conversion macro.
+# After expansion by the outer $(eval ), the UPPERCASE macro is defined as:
+# $(strip $(eval __tmp := $(1))  $(eval __tmp := $(subst a,A,$(__tmp))) ... )
+# In other words, every letter is substituted one by one.
+#
+# The caseconvert-helper allows us to create this definition out of the
+# [FROM] and [TO] lists, so we don't need to write down every substition
+# manually. The uses of $ and $$ quoting are chosen in order to do as
+# much expansion as possible up-front.
+#
+# Note that it would be possible to conceive a slightly more optimal
+# implementation that avoids the use of __tmp, but that would be even
+# more unreadable and is not worth the effort.
+
+[FROM] := a b c d e f g h i j k l m n o p q r s t u v w x y z - .
+[TO]   := A B C D E F G H I J K L M N O P Q R S T U V W X Y Z _ _
+
+define caseconvert-helper
+$(1) = $$(strip \
+	$$(eval __tmp := $$(1))\
+	$(foreach c, $(2),\
+		$$(eval __tmp := $$(subst $(word 1,$(subst :, ,$c)),$(word 2,$(subst :, ,$c)),$$(__tmp))))\
+	$$(__tmp))
+endef
+
+$(eval $(call caseconvert-helper,UPPERCASE,$(join $(addsuffix :,$([FROM])),$([TO]))))
+$(eval $(call caseconvert-helper,LOWERCASE,$(join $(addsuffix :,$([TO])),$([FROM]))))
+
+# Sanitize macro cleans up generic strings so it can be used as a filename
+# and in rules. Particularly useful for VCS version strings, that can contain
+# slashes, colons (OK in filenames but not in rules), and spaces.
+sanitize = $(subst $(space),_,$(subst :,_,$(subst /,_,$(strip $(1)))))
+
+# github(user,package,version): returns site of GitHub repository
+github = https://github.com/$(1)/$(2)/archive/$(3)
+
+# custom for PawPaw
+
+PKG = $(call UPPERCASE,$(call sanitize,$(pkgname)))
+$(PKG)_PKGDIR = $(CURDIR)/mod-plugin-builder/plugins/package/$(pkgname)
+
+BR2_TARGET_OPTIMIZATION =
+
+MAKE1 = make -j1
+PARALLEL_JOBS = $(shell nproc)
+
+WORKDIR ?= $(HOME)/mod-workdir
+HOST_DIR = $(WORKDIR)/moddwarf-new/host
+
+TARGET_CFLAGS = $(CFLAGS)
+TARGET_CXXFLAGS = $(CXXFLAGS)
+TARGET_LDFLAGS = $(LDFLAGS)
+
+TARGET_DIR = $(PAWPAW_PREFIX)
+
+define generic-package
+
+endef
+
+define cmake-package
+
+define $(PKG)CONFIGURE_CMDS
+	(cd $$($$(PKG)_DIR) && \
+	rm -f CMakeCache.txt && \
+	$$(CMAKE) $$($$(PKG)_DIR) \
+		-DCMAKE_BUILD_TYPE=Release \
+		-DCMAKE_INSTALL_PREFIX='/usr' \
+		--no-warn-unused-cli \
+		$$($$(PKG)CONF_OPTS) \
+	)
+endef
+
+define $(PKG)BUILD_CMDS
+	$(MAKE) -C $$($$(PKG)_DIR)
+endef
+
+ifndef $(PKG)INSTALL_TARGET_CMDS
+define $(PKG)INSTALL_TARGET_CMDS
+	$(MAKE) -C $$($$(PKG)_DIR) DESTDIR=$(PAWPAW_PREFIX)
+endef
+endif
+
+endef
+
+include $(CURDIR)/mod-plugin-builder/plugins/package/$(pkgname)/$(pkgname).mk
+
+$(PKG)_VERSION = $(call sanitize,$(strip $($(PKG)VERSION)))
+$(PKG)_DIR = $(PAWPAW_BUILDDIR)/$(pkgname)-$($(PKG)_VERSION)
+
+# TODO change according to SITE_METHOD?
+$(PKG)_DLFILE = $(PAWPAW_DOWNLOADDIR)/$(pkgname)-$($(PKG)_VERSION).tar.gz
+
+STAMP_EXTRACTED  = $($(PKG)_DIR)/.stamp_extracted
+STAMP_CONFIGURED = $($(PKG)_DIR)/.stamp_configured
+STAMP_BUILT      = $($(PKG)_DIR)/.stamp_built
+STAMP_INSTALLED  = $($(PKG)_DIR)/.stamp_installed
+
+TMPDIR = /tmp/PawPaw
+TMPNAME = git-dl
+
+all: $(STAMP_INSTALLED)
+
+$(STAMP_INSTALLED): $(STAMP_BUILT)
+	$($(PKG)INSTALL_TARGET_CMDS)
+	touch $@
+
+$(STAMP_BUILT): $(STAMP_CONFIGURED)
+	$($(PKG)BUILD_CMDS)
+	touch $@
+
+$(STAMP_CONFIGURED): $(STAMP_EXTRACTED)
+	$($(PKG)CONFIGURE_CMDS)
+	touch $@
+
+# TODO change according to SITE_METHOD?
+$(STAMP_EXTRACTED): $($(PKG)_DLFILE)
+	mkdir -p '$($(PKG)_DIR)'
+	tar -xf '$($(PKG)_DLFILE)' -C '$($(PKG)_DIR)' --strip-components=1
+	touch $@
+
+$($(PKG)_DLFILE):
+ifeq ($($(PKG)SITE_METHOD),git)
+	rm -rf '$(TMPDIR)'
+	git clone --recursive '$($(PKG)SITE)' '$(TMPDIR)/$(TMPNAME)' && \
+	git -C '$(TMPDIR)/$(TMPNAME)' checkout '$($(PKG)VERSION)' && \
+	git -C '$(TMPDIR)/$(TMPNAME)' submodule update --recursive --init && \
+	tar --exclude='.git' -czf '$($(PKG)_DLFILE)' -C '$(TMPDIR)' '$(TMPNAME)'
+	rm -rf '$(TMPDIR)'
+else
+	wget -O '$($(PKG)_DLFILE)' '$($(PKG)SITE).tar.gz'
+endif