Mercurial > hg-stable
view Makefile @ 28289:d493d64757eb stable 3.7.2
hg: obtain lock when creating share from pooled repo (issue5104)
There are race conditions between clients performing a shared clone
to pooled storage:
1) Clients race to create the new shared repo in the pool directory
2) 1 client is seeding the repo in the pool directory and another goes
to share it before it is fully cloned
We prevent these race conditions by obtaining a lock in the pool
directory that is derived from the name of the repo we will be
accessing.
To test this, a simple generic "lockdelay" extension has been added.
The extension inserts an optional, configurable delay before or after
lock acquisition. In the test, we delay 2 seconds after lock acquisition
in the first process and 1 second before lock acquisition in the 2nd
process. This means the first process has 1s to obtain the lock. There
is a race condition here. If we encounter it in the wild, we could
change the dummy extension to wait on the lock file to appear instead
of relying on timing. But that's more complicated. Let's see what
happens first.
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Sat, 27 Feb 2016 18:22:49 -0800 |
parents | ef9301ce6046 |
children | 17b85d739b62 |
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# If you want to change PREFIX, do not just edit it below. The changed # value wont get passed on to recursive make calls. You should instead # override the variable on the command like: # # % make PREFIX=/opt/ install PREFIX=/usr/local export PREFIX PYTHON=python $(eval HGROOT := $(shell pwd)) HGPYTHONS ?= $(HGROOT)/build/pythons PURE= PYFILES:=$(shell find mercurial hgext doc -name '*.py') DOCFILES=mercurial/help/*.txt export LANGUAGE=C export LC_ALL=C TESTFLAGS ?= $(shell echo $$HGTESTFLAGS) # Set this to e.g. "mingw32" to use a non-default compiler. COMPILER= help: @echo 'Commonly used make targets:' @echo ' all - build program and documentation' @echo ' install - install program and man pages to $$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.t)' @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 ' update-pot - update i18n/hg.pot' @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 $(PURE) \ build_py -c -d . \ build_ext $(COMPILER:%=-c %) -i \ build_hgexe $(COMPILER:%=-c %) -i \ build_mo env HGRCPATH= $(PYTHON) hg version build: $(PYTHON) setup.py $(PURE) build $(COMPILER:%=-c %) wheel: FORCE_SETUPTOOLS=1 $(PYTHON) setup.py $(PURE) bdist_wheel $(COMPILER:%=-c %) doc: $(MAKE) -C doc clean: -$(PYTHON) setup.py clean --all # ignore errors from this command find contrib doc hgext i18n mercurial tests \ \( -name '*.py[cdo]' -o -name '*.so' \) -exec rm -f '{}' ';' rm -f $(addprefix mercurial/,$(notdir $(wildcard mercurial/pure/[a-z]*.py))) rm -f MANIFEST MANIFEST.in hgext/__index__.py tests/*.err if test -d .hg; then rm -f mercurial/__version__.py; fi rm -rf build mercurial/locale $(MAKE) -C doc clean install: install-bin install-doc install-bin: build $(PYTHON) setup.py $(PURE) install --root="$(DESTDIR)/" --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 $(PURE) install --home="$(HOME)" --prefix="" --force install-home-doc: doc cd doc && $(MAKE) $(MFLAGS) PREFIX="$(HOME)" install MANIFEST-doc: $(MAKE) -C doc MANIFEST MANIFEST.in: MANIFEST-doc hg manifest | sed -e 's/^/include /' > MANIFEST.in echo include mercurial/__version__.py >> MANIFEST.in sed -e 's/^/include /' < doc/MANIFEST >> MANIFEST.in dist: tests dist-notests dist-notests: doc MANIFEST.in TAR_OPTIONS="--owner=root --group=root --mode=u+w,go-w,a+rX-s" $(PYTHON) setup.py -q sdist check: tests tests: cd tests && $(PYTHON) run-tests.py $(TESTFLAGS) test-%: cd tests && $(PYTHON) run-tests.py $(TESTFLAGS) $@ testpy-%: @echo Looking for Python $* in $(HGPYTHONS) [ -e $(HGPYTHONS)/$*/bin/python ] || ( \ cd $$(mktemp --directory --tmpdir) && \ $(MAKE) -f $(HGROOT)/contrib/Makefile.python PYTHONVER=$* PREFIX=$(HGPYTHONS)/$* python ) cd tests && $(HGPYTHONS)/$*/bin/python run-tests.py $(TESTFLAGS) check-code: hg manifest | xargs python contrib/check-code.py update-pot: i18n/hg.pot i18n/hg.pot: $(PYFILES) $(DOCFILES) i18n/posplit i18n/hggettext $(PYTHON) i18n/hggettext mercurial/commands.py \ hgext/*.py hgext/*/__init__.py \ mercurial/fileset.py mercurial/revset.py \ mercurial/templatefilters.py mercurial/templatekw.py \ mercurial/templater.py \ mercurial/filemerge.py \ mercurial/hgweb/webcommands.py \ $(DOCFILES) > i18n/hg.pot.tmp # All strings marked for translation in Mercurial contain # ASCII characters only. But some files contain string # literals like this '\037\213'. xgettext thinks it has to # parse them even though they are not marked for translation. # Extracting with an explicit encoding of ISO-8859-1 will make # xgettext "parse" and ignore them. echo $(PYFILES) | xargs \ xgettext --package-name "Mercurial" \ --msgid-bugs-address "<mercurial-devel@selenic.com>" \ --copyright-holder "Matt Mackall <mpm@selenic.com> and others" \ --from-code ISO-8859-1 --join --sort-by-file --add-comments=i18n: \ -d hg -p i18n -o hg.pot.tmp $(PYTHON) i18n/posplit i18n/hg.pot.tmp # The target file is not created before the last step. So it never is in # an intermediate state. mv -f i18n/hg.pot.tmp i18n/hg.pot %.po: i18n/hg.pot # work on a temporary copy for never having a half completed target cp $@ $@.tmp msgmerge --no-location --update $@.tmp $^ mv -f $@.tmp $@ # Packaging targets osx: python -c 'import bdist_mpkg.script_bdist_mpkg' || \ (echo "Missing bdist_mpkg (easy_install bdist_mpkg)"; false) rm -rf dist/mercurial-*.mpkg python -m bdist_mpkg.script_bdist_mpkg setup.py -- python contrib/fixpax.py dist/mercurial-*.mpkg/Contents/Packages/*.pkg/Contents/Archive.pax.gz mkdir -p packages/osx N=`cd dist && echo mercurial-*.mpkg | sed 's,\.mpkg$$,,'` && hdiutil create -srcfolder dist/$$N.mpkg/ -scrub -volname "$$N" -ov packages/osx/$$N.dmg rm -rf dist/mercurial-*.mpkg deb: contrib/builddeb docker-debian-jessie: mkdir -p packages/debian-jessie contrib/dockerdeb debian jessie fedora20: mkdir -p packages/fedora20 contrib/buildrpm cp rpmbuild/RPMS/*/* packages/fedora20 cp rpmbuild/SRPMS/* packages/fedora20 rm -rf rpmbuild docker-fedora20: mkdir -p packages/fedora20 contrib/dockerrpm fedora20 fedora21: mkdir -p packages/fedora21 contrib/buildrpm cp rpmbuild/RPMS/*/* packages/fedora21 cp rpmbuild/SRPMS/* packages/fedora21 rm -rf rpmbuild docker-fedora21: mkdir -p packages/fedora21 contrib/dockerrpm fedora21 centos5: mkdir -p packages/centos5 contrib/buildrpm --withpython cp rpmbuild/RPMS/*/* packages/centos5 cp rpmbuild/SRPMS/* packages/centos5 docker-centos5: mkdir -p packages/centos5 contrib/dockerrpm centos5 --withpython centos6: mkdir -p packages/centos6 contrib/buildrpm cp rpmbuild/RPMS/*/* packages/centos6 cp rpmbuild/SRPMS/* packages/centos6 docker-centos6: mkdir -p packages/centos6 contrib/dockerrpm centos6 centos7: mkdir -p packages/centos7 contrib/buildrpm cp rpmbuild/RPMS/*/* packages/centos7 cp rpmbuild/SRPMS/* packages/centos7 docker-centos7: mkdir -p packages/centos7 contrib/dockerrpm centos7 .PHONY: help all local build doc clean install install-bin install-doc \ install-home install-home-bin install-home-doc \ dist dist-notests check tests check-code update-pot \ osx fedora20 docker-fedora20 fedora21 docker-fedora21 \ centos5 docker-centos5 centos6 docker-centos6 centos7 docker-centos7