postit-debian/Makefile
Paul Schneider cc48de0bea
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Makefile: dpkg-architecture -aarm64 for proper cross-build host arch
dpkg-buildpackage doesn't know about dotnet's --runtime flag.
It uses the host arch by default, so the cross-build for arm64
produced postit_*_amd64.deb (filename mismatch with the actual
arm64 .so content inside).

The Debian-blessed way to do cross-builds is to set DEB_HOST_ARCH
via dpkg-architecture. With -aarm64, dpkg-buildpackage will:
- name the .deb postit_*_arm64.deb
- accept the amd64 host as the build environment
- run debhelper rules with the right DEB_* variables exported

The vars from dpkg-architecture have to be exported into the
same shell as dpkg-buildpackage (each make recipe line runs in
its own shell), so eval and dpkg-buildpackage are chained with
'\\' continuation.

The warning 'GNU system type aarch64-linux-gnu does not match
the CC system type x86_64-linux-gnu' is informational — it just
acknowledges that we're cross-compiling. We don't compile C, so
no CC toolchain is needed.
2026-08-17 17:48:47 +01:00

89 lines
4.1 KiB
Makefile

# Makefile for the postit Debian package.
#
# Targets:
# make deb : build a .deb in the parent directory (or
# $POSTIT_OUT_DIR if set). Equivalent to
# dpkg-buildpackage -us -uc -b.
# make test : run the non-regression tests under tests/.
# The fetch test pins the upstream Git mechanics
# that previously regressed on tag-vs-branch
# handling (1.0.1-rc02). Set SKIP_NETWORK_TESTS=1
# to skip the GitHub-egress parts.
# make clean : rm -rf build/ and the per-package staging tree
# under debian/postit.
# make source : fetch the upstream yavsc source tree under
# build/yavsc-src (no packaging step). Useful for
# debugging the publish step.
#
# Environment overrides (or pass on the make command line):
# POSTIT_GIT_URL default: https://github.com/pazof/yavsc.git
# POSTIT_GIT_TAG default: 1.0.0
# POSTIT_RUNTIME default: linux-x64 (override to linux-arm64 etc.)
# POSTIT_OUT_DIR default: $(CURDIR)/.. (artifacts land here)
POSTIT_GIT_URL ?= https://github.com/pazof/yavsc.git
POSTIT_GIT_TAG ?= 1.0.6
POSTIT_RUNTIME ?= linux-x64
POSTIT_OUT_DIR ?= $(CURDIR)/..
.PHONY: deb clean source test
deb:
@echo " POSTIT_GIT_TAG=$(POSTIT_GIT_TAG) POSTIT_RUNTIME=$(POSTIT_RUNTIME) POSTIT_GIT_URL=$(POSTIT_GIT_URL)"
# Render debian/changelog from debian/changelog.in so the package
# version follows the upstream tag, not the version pinned in the
# repo. dpkg-buildpackage reads debian/changelog before any rule
# runs (in dpkg-source --before-build), so the template must be
# expanded in the Makefile, not in debian/rules. Without this
# step the .deb always comes out as the version hardcoded in
# debian/changelog.in, regardless of POSTIT_GIT_TAG.
sed 's/@VERSION@/$(POSTIT_GIT_TAG)/g' debian/changelog.in > debian/changelog
# Remove any residual .deb from previous runs (same name
# pattern would otherwise be re-used by dpkg-deb if the
# previous run left it lying around).
rm -f ../postit_*$(POSTIT_GIT_TAG)-1*.deb ../postit_*.buildinfo ../postit_*.changes
# Use dpkg-architecture to set the target arch correctly for
# cross-builds. For POSTIT_RUNTIME=linux-arm64, this exports
# DEB_HOST_ARCH=arm64 (and friends) so dpkg-buildpackage names
# the .deb postit_*_arm64.deb instead of postit_*_amd64.deb.
# For linux-x64, it sets the host arch to amd64 explicitly
# (which matches the runner — no-op, but keeps the call site
# uniform). Other RIDs are rejected.
case "$(POSTIT_RUNTIME)" in
linux-arm64) DPKG_ARCH_ARGS="-aarm64" ;;
linux-x64) DPKG_ARCH_ARGS="-aamd64" ;;
*) echo " ERROR: unsupported POSTIT_RUNTIME=$(POSTIT_RUNTIME)" >&2; exit 1 ;;
esac
# dpkg-architecture with no -t/-a flags just prints the arch
# info; with -aarm64, it exports the variables needed for a
# cross-build targeting arm64. Use 'eval' to put those vars
# in the environment of the next command.
# Chain 'eval' and 'dpkg-buildpackage' on a single shell line
# so the exported vars from dpkg-architecture are visible
# to dpkg-buildpackage. Each recipe line runs in its own
# shell, so an 'eval' on one line wouldn't affect the next.
eval $(dpkg-architecture $$DPKG_ARCH_ARGS) && \
POSTIT_GIT_URL=$(POSTIT_GIT_URL) POSTIT_GIT_TAG=$(POSTIT_GIT_TAG) POSTIT_RUNTIME=$(POSTIT_RUNTIME) \
dpkg-buildpackage -us -uc -b
# dpkg-buildpackage already writes the produced .deb to
# /src/_src/../ = $POSTIT_OUT_DIR (its default — there's no
# flag to change it). So no 'mv' is needed. The old 'mv'
# caused a 'same file' error when the destination was the
# same as the source (which it always is). Just verify the
# .deb was actually produced.
if ! ls ../postit_*$(POSTIT_GIT_TAG)-1*.deb >/dev/null 2>&1; then \
echo " ERROR: dpkg-buildpackage produced no .deb for POSTIT_GIT_TAG=$(POSTIT_GIT_TAG)" >&2; \
exit 1; \
fi
@echo " ✓ artifacts in $(POSTIT_OUT_DIR)"
clean:
rm -rf build debian/postit
source:
mkdir -p build
git clone --depth=1 --branch $(POSTIT_GIT_TAG) \
$(POSTIT_GIT_URL) build/yavsc-src
test:
@bash tests/test-fetch-upstream.sh