merge: do early copy to deal with issue636
Without copies/renames, merges source names are 1:1 with their
targets. Copies and renames introduce the possibility that there will
be two merges with the same input but different output. By doing the
copy to the destination name before the merge, the actual merge
becomes 1:1 again, and no source is the input to two different merges.
- add a preliminary scan to applyupdates to do copies
- for the merge action, pass the old name (for finding ancestors) and
the new name (for input to the merge) to filemerge
- eliminate the old post-merge copy
- lookup file contents from new name in filemerge
- pass new name to external merge helper
- report merge failure at new name
- add a test
PREFIX=/usr/local
export PREFIX
PYTHON=python
help:
@echo 'Commonly used make targets:'
@echo ' all - build program and documentation'
@echo ' install - install program and man pages to PREFIX ($(PREFIX))'
@echo ' install-home - install with setup.py install --home=HOME ($(HOME))'
@echo ' local - build for inplace usage'
@echo ' tests - run all tests in the automatic test suite'
@echo ' test-foo - run only specified tests (e.g. test-merge1)'
@echo ' dist - run all tests and create a source tarball in dist/'
@echo ' clean - remove files created by other targets'
@echo ' (except installed files or dist source tarball)'
@echo
@echo 'Example for a system-wide installation under /usr/local:'
@echo ' make all && su -c "make install" && hg version'
@echo
@echo 'Example for a local installation (usable in this directory):'
@echo ' make local && ./hg version'
all: build doc
local:
$(PYTHON) setup.py build_ext -i
$(PYTHON) setup.py build_py -c -d .
$(PYTHON) hg version
build:
$(PYTHON) setup.py build
doc:
$(MAKE) -C doc
clean:
-$(PYTHON) setup.py clean --all # ignore errors of this command
find . -name '*.py[cdo]' -exec rm -f '{}' ';'
rm -f MANIFEST mercurial/__version__.py mercurial/*.so tests/*.err
$(MAKE) -C doc clean
install: install-bin install-doc
install-bin: build
$(PYTHON) setup.py install --prefix="$(PREFIX)" --force
install-doc: doc
cd doc && $(MAKE) $(MFLAGS) install
install-home: install-home-bin install-home-doc
install-home-bin: build
$(PYTHON) setup.py install --home="$(HOME)" --force
install-home-doc: doc
cd doc && $(MAKE) $(MFLAGS) PREFIX="$(HOME)" install
MANIFEST-doc:
$(MAKE) -C doc MANIFEST
MANIFEST: MANIFEST-doc
hg manifest > MANIFEST
echo mercurial/__version__.py >> MANIFEST
cat doc/MANIFEST >> MANIFEST
dist: tests dist-notests
dist-notests: doc MANIFEST
TAR_OPTIONS="--owner=root --group=root --mode=u+w,go-w,a+rX-s" $(PYTHON) setup.py -q sdist
tests:
cd tests && $(PYTHON) run-tests.py $(TESTFLAGS)
test-%:
cd tests && $(PYTHON) run-tests.py $(TESTFLAGS) $@
.PHONY: help all local build doc clean install install-bin install-doc \
install-home install-home-bin install-home-doc dist dist-notests tests