Build packages on my own, separate from pmbootstrap

packaging/.gitignore

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+.build-image.*
+distfiles/
+target/
+synit-apk-key
+synit-apk-key.pub

packaging/Dockerfile

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+ARG DOCKER_ARCH
+FROM --platform=linux/${DOCKER_ARCH} alpine:latest
+
+RUN sed -i -e s:https:http:g /etc/apk/repositories
+ARG http_proxy
+RUN http_proxy=${http_proxy} apk add bash sudo alpine-sdk linux-headers
+
+ARG UID
+ARG BUILD_USER
+RUN adduser -D -u ${UID} ${BUILD_USER} && addgroup ${BUILD_USER} abuild
+RUN echo "${BUILD_USER} ALL=(ALL) NOPASSWD:ALL" >> /etc/sudoers
+
+ARG KEYFILE
+COPY ${KEYFILE}.pub /etc/apk/keys/.
+RUN mkdir -p /home/${BUILD_USER}/.abuild/
+RUN echo "PACKAGER_PRIVKEY=/home/${BUILD_USER}/.abuild/signing-key.rsa" >> /home/${BUILD_USER}/.abuild/abuild.conf
+
+USER ${BUILD_USER}
+WORKDIR /data

packaging/Makefile

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+.PHONY: build-image build sign clean veryclean keyfile
+
+# If you run:
+#   docker run --rm --name squid adricu/alpine-squid
+# and set DOCKER_SQUID_CONTAINER=squid
+# then you can avoid repeated downloads of a lot of alpine packages.
+#
+DOCKER_SQUID_CONTAINER?=squid
+ifeq ($(DOCKER_SQUID_CONTAINER),)
+DOCKER_SQUID_OPTS=
+else
+DOCKER_SQUID_OPTS=--link $(DOCKER_SQUID_CONTAINER):squid -e http_proxy=http://squid:3128/
+HTTP_PROXY=http://$(shell docker inspect squid | preserves-tool convert -o unquoted --select '/ . "NetworkSettings" . "IPAddress"'):3128/
+endif
+
+ARCH?=aarch64
+DOCKER_ARCH=$(shell ./map_docker_arch.sh $(ARCH))
+KEYFILE?=$(CURDIR)/synit-apk-key
+UID:=$(shell id -u)
+GID:=$(shell id -g)
+BUILD_USER?=build
+
+DOCKER_CMD=\
+	mkdir -p $(CURDIR)/distfiles && \
+	docker run --platform linux/$(DOCKER_ARCH) -it --rm \
+		$(DOCKER_SQUID_OPTS) \
+		-v `pwd`:/data \
+		-v $(KEYFILE):/home/$(BUILD_USER)/.abuild/signing-key.rsa \
+		-v $(CURDIR)/distfiles:/var/cache/distfiles \
+		synit-build:$(ARCH)
+
+build: build-image
+	$(DOCKER_CMD) make -f Makefile.internal build
+
+sign: build-image
+	$(DOCKER_CMD) make -f Makefile.internalsign
+
+%.apk:
+
+clean:
+	rm -f .build-image.*
+	-docker rmi synit-build:aarch64
+	-docker rmi synit-build:x86_64
+	-docker rmi synit-build:armv7
+
+veryclean: clean
+	rm -rf target
+
+build-image: .build-image.$(ARCH)
+
+.build-image.$(ARCH): $(KEYFILE)
+	docker buildx build \
+		--platform=linux/$(DOCKER_ARCH) \
+		--build-arg http_proxy=$(HTTP_PROXY) \
+		--build-arg DOCKER_ARCH=$(DOCKER_ARCH) \
+		--build-arg KEYFILE=$(KEYFILE:$(abspath $(dir $(KEYFILE)))/%=%) \
+		--build-arg UID=$(UID) \
+		--build-arg BUILD_USER=$(BUILD_USER) \
+		-t synit-build:$(ARCH) .
+	touch $@
+
+keyfile: $(KEYFILE)
+
+$(KEYFILE):
+	docker run -it --rm \
+		-v $(abspath $(dir $(KEYFILE))):/data \
+		alpine \
+		sh -c "apk add abuild && echo /data/$(notdir $(KEYFILE)) | abuild-keygen && chown $(UID):$(GID) /data/$(notdir $(KEYFILE))*"

packaging/Makefile.internal

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+# Expects to run from *within* alpine. -*- Makefile-gmake -*-
+
+.PHONY: build sign
+
+TARGET = $(CURDIR)/target
+ARCH = $(shell apk --print-arch)
+ARCH_TARGET = $(TARGET)/packages/$(ARCH)
+SIGNING_KEY = $(HOME)/.abuild/signing-key.rsa
+
+PACKAGES = \
+	squeak-vm.apk \
+
+build: $(PACKAGES) sign
+
+%.apk: $(ARCH_TARGET)
+	@echo proxy $$http_proxy
+	@cat ~/.abuild/abuild.conf
+	@echo "Building $*..."
+	@cd packages/$* && (unset MAKEFLAGS; abuild -F -P $(TARGET) deps && abuild -P $(TARGET))
+
+$(ARCH_TARGET):
+	mkdir -p $@
+
+%.checksum:
+	cd packages/$* && abuild checksum
+
+sign: $(ARCH_TARGET)
+	rm -f $(ARCH_TARGET)/APKINDEX.tar.gz
+	cd $(ARCH_TARGET) && apk index -o APKINDEX.tar.gz --rewrite-arch $(ARCH) *.apk
+	abuild-sign -q -k $(HOME)/.abuild/signing-key.rsa $(ARCH_TARGET)/APKINDEX.tar.gz
+
+clean:
+
+veryclean: clean
+	rm -rf $(ARCH_TARGET)

packaging/README.md

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+# Packaging scripts for PostmarketOS

packaging/map_docker_arch.sh

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+#!/bin/sh
+case $1 in
+    aarch64) echo arm64;;
+    x86_64) echo x86_64;;
+    armv7) echo armhf;;
+    *)
+        echo 'ERROR: Unknown Alpine ARCH '"$1" >&2
+        exit 1
+esac

packaging/packages/squeak-vm/APKBUILD

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+# Contributor: Tony Garnock-Jones <tonyg@leastfixedpoint.com>
+# Maintainer: Tony Garnock-Jones <tonyg@leastfixedpoint.com>
+pkgname=squeak-vm
+pkgver=202107301330
+pkgrel=0
+pkgdesc="Squeak Spur stack (non-JIT) Virtual Machine"
+url="https://opensmalltalk.org/"
+arch="all"
+license="MIT"
+depends=""
+makedepends="git bash linux-headers alsa-lib-dev openssl-dev libevdev-dev mesa-dev"
+source="$pkgname-$pkgver.tar.gz::https://github.com/OpenSmalltalk/opensmalltalk-vm/archive/refs/tags/$pkgver.tar.gz"
+builddir="$srcdir/opensmalltalk-vm-$pkgver"
+options="!check"
+
+build() {
+    PATH=$(echo "$PATH" | tr ':' '\n' | grep -v crossdirect | tr '\n' ':')
+    echo 'false' > ./scripts/checkSCCSversion
+    case "$CARCH" in
+        aarch64*)
+            cd build.linux64ARMv8
+            ;;
+        *)
+            echo "Architecture $CARCH not yet supported"
+            exit 1
+            ;;
+    esac
+    cd squeak.stack.spur/build
+    echo y | ./mvm
+    echo n | ./mvm
+}
+
+package() {
+    case "$CARCH" in
+        aarch64*)
+            cd products/sqstkspur64ARMv8linuxht
+            ;;
+        *)
+            echo "Architecture $CARCH not yet supported"
+            exit 1
+            ;;
+    esac
+    mkdir -p "$pkgdir/usr/lib/squeak"
+    cp -rp lib/squeak/*/. "$pkgdir/usr/lib/squeak/."
+}
+
+sha512sums="
+3ea16d90bc64b53b1e865b7e7e84457d564b60de2b8a2179c52528c1c1a574177a4aa933b634de5dd8d82557ea1bd7e453a119dfabdad133dc47eca7c8ca6aa8  squeak-vm-202107301330.tar.gz
+"