evolve: make sure divergence resolution doesn't undo changes (issue6203)
Before this patch, in content-divergence resolution logic if resolution
parent is not the parent of any of the two divergent changesets then
it could undo some changes introduced by previous revs (while resolving
stack of content-divergent changesets) as demonstrated by the test added in
previous patch.
To solve this, what this patch doing is: if divergent cset has obsolete
parent with a successor then first resolve the "orphan" instability of
divergent cset by relocating, then perform the content-divergence resolution.
After this change in logic, I found that it's kind of more correct as
reflected by the changes in tests/test-evolve-content-divergent-corner-cases.t
where it prevented creating conflicts while merging.
Changes in tests/test-evolve-content-divergent-stack.t demonstrate the fixed
behaviour.
Next patches will be covering the `evolve --continue` case for the relocation
of "divergent" cset.
VERSION=$(shell python setup.py --version)
PYTHON=python
all: help
deb-prepare:
python setup.py sdist --dist-dir ..
mv -f ../hg-evolve-$(VERSION).tar.gz ../mercurial-evolve_$(VERSION).orig.tar.gz
tar xf ../mercurial-evolve_$(VERSION).orig.tar.gz
rm -rf ../mercurial-evolve_$(VERSION).orig
mv hg-evolve-$(VERSION) ../mercurial-evolve_$(VERSION).orig
cp -r debian/ ../mercurial-evolve_$(VERSION).orig/
@cd ../mercurial-evolve_$(VERSION).orig && echo 'debian build directory ready at' `pwd`
install-home:
$(PYTHON) setup.py install --home="$(HOME)" --prefix="" --force
# test targets
TESTFLAGS ?= $(shell echo $$HGTESTFLAGS)
HGTESTS=$(HGROOT)/tests
help:
@echo 'Commonly used make targets:'
@echo ' deb-prepare - prepare the build of a debian package'
@echo ' tests - run all tests in the automatic test suite'
@echo ' all-version-tests - run all tests against many hg versions'
@echo ' tests-%s - run all tests in the specified hg version'
all: help
_check_hgroot:
ifeq ($(HGROOT),)
$(error HGROOT is not set to the root of the hg source tree)
endif
tests: _check_hgroot
cd tests && $(PYTHON) $(HGTESTS)/run-tests.py $(TESTFLAGS)
# /!\ run outside of the compatibility branch output test will likely fails
test-%: _check_hgroot
cd tests && $(PYTHON) $(HGTESTS)/run-tests.py $(TESTFLAGS) $@
tests-%: _check_hgroot
hg -R $(HGROOT) checkout $$(echo $@ | sed s/tests-//) && \
(cd $(HGROOT) ; $(MAKE) clean ) && \
cd tests && $(PYTHON) $(HGTESTS)/run-tests.py $(TESTFLAGS)
# build a script to extract declared version
all-version-tests: tests-@
.PHONY: tests all-version-tests