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packaging: derive Debian version from POSTIT_GIT_TAG via a changelog template

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The .deb was hardcoded to 1.0.0-1 in debian/changelog regardless of
POSTIT_GIT_TAG, so 'make POSTIT_GIT_TAG=1.0.1-rc01' produced a
postit_1.0.0-1_amd64.deb (wrong name) and the trailing mv into
POSTIT_OUT_DIR silently fell back to the same wrong-name glob.

Move the version into a @VERSION@-bearing debian/changelog.in
template and render debian/changelog from it in the Makefile, before
dpkg-buildpackage runs (it reads debian/changelog during
dpkg-source --before-build, before any rule fires). debian/changelog
is .gitignored; the template is the source of truth.

debian/rules re-renders the changelog as a safety net for direct
dpkg-buildpackage invocations and adds it to override_dh_auto_clean
so partial builds leave no stale rendered file behind.
This commit is contained in:
Lum 2026-06-28 13:20:17 +01:00
commit 69ec916c4e
5 changed files with 47 additions and 13 deletions
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15
Makefile
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@ -24,10 +24,23 @@ POSTIT_OUT_DIR ?= $(CURDIR)/..
.PHONY: deb clean source
deb:
@echo " POSTIT_GIT_TAG=$(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@/$(POSTIT_GIT_TAG)/g' debian/changelog.in > debian/changelog
POSTIT_GIT_URL=$(POSTIT_GIT_URL) POSTIT_GIT_TAG=$(POSTIT_GIT_TAG) POSTIT_RUNTIME=$(POSTIT_RUNTIME) \
dpkg-buildpackage -us -uc -b
mv ../postit_*$(POSTIT_GIT_TAG)*.deb $(POSTIT_OUT_DIR)/ 2>/dev/null || \
# Move the produced .deb(s) into $POSTIT_OUT_DIR. The version
# segment we match against is the rendered changelog version
# (e.g. 1.0.1-rc01-1), not the bare tag.
mv ../postit_*$(POSTIT_GIT_TAG)-1*.deb $(POSTIT_OUT_DIR)/ 2>/dev/null || \
mv ../postit_*.deb $(POSTIT_OUT_DIR)/ || true
@echo " ✓ artifacts moved to $(POSTIT_OUT_DIR)"
clean:
rm -rf build debian/postit