Mercurial > hg-stable
view Makefile @ 30455:b324b4e431e5
posix: give checkexec a fast path; keep the check files and test read only
Before, Mercurial would create a new temporary file every time, stat it, change
its exec mode, stat it again, and delete it. Most of this dance was done to
handle the rare and not-so-essential case of VFAT mounts on unix. The cost of
that was paid by the much more common and important case of using normal file
systems.
Instead, try to create and preserve .hg/cache/checkisexec and
.hg/cache/checknoexec with and without exec flag set. If the files exist and
have correct exec flags set, we can conclude that that file system supports the
exec flag. Best case, the whole exec check can thus be done with two stat
calls. Worst case, we delete the wrong files and check as usual. That will be
because temporary loss of exec bit or on file systems without support for the
exec bit. In that case we check as we did before, with the additional overhead
of one extra stat call.
It is possible that this different test algorithm in some cases on odd file
systems will give different behaviour. Again, I think it will be rare and
special cases and I think it is worth the risk.
test-clone.t happens to show the situation where checkisexec is left behind
from the old style check, while checknoexec only will be created next time a
exec check will be performed.
author | Mads Kiilerich <madski@unity3d.com> |
---|---|
date | Wed, 14 Jan 2015 01:15:26 +0100 |
parents | 730c7fc8889a |
children | 06b17f6c6559 |
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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 export PREFIX=/usr/local 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 $$HGTESTFLAGS) # Set this to e.g. "mingw32" to use a non-default compiler. 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But some files contain string # literals like this '\037\213'. xgettext thinks it has to # parse them even though they are not marked for translation. # Extracting with an explicit encoding of ISO-8859-1 will make # xgettext "parse" and ignore them. echo $(PYFILES) | xargs \ xgettext --package-name "Mercurial" \ --msgid-bugs-address "<mercurial-devel@selenic.com>" \ --copyright-holder "Matt Mackall <mpm@selenic.com> and others" \ --from-code ISO-8859-1 --join --sort-by-file --add-comments=i18n: \ -d hg -p i18n -o hg.pot.tmp $(PYTHON) i18n/posplit i18n/hg.pot.tmp # The target file is not created before the last step. So it never is in # an intermediate state. mv -f i18n/hg.pot.tmp i18n/hg.pot %.po: i18n/hg.pot # work on a temporary copy for never having a half completed target cp $@ $@.tmp msgmerge --no-location --update $@.tmp $^ mv -f $@.tmp $@ # Packaging targets osx: /usr/bin/python2.7 setup.py install --optimize=1 \ --root=build/mercurial/ --prefix=/usr/local/ \ --install-lib=/Library/Python/2.7/site-packages/ make -C doc all install DESTDIR="$(PWD)/build/mercurial/" mkdir -p $${OUTPUTDIR:-dist} HGVER=$$((cat build/mercurial/Library/Python/2.7/site-packages/mercurial/__version__.py; echo 'print(version)') | python) && \ OSXVER=$$(sw_vers -productVersion | cut -d. -f1,2) && \ pkgbuild --root build/mercurial/ \ --identifier org.mercurial-scm.mercurial \ --version "$${HGVER}" \ build/mercurial.pkg && \ productbuild --distribution contrib/macosx/distribution.xml \ --package-path build/ \ --version "$${HGVER}" \ --resources contrib/macosx/ \ "$${OUTPUTDIR:-dist/}"/Mercurial-"$${HGVER}"-macosx"$${OSXVER}".pkg deb: contrib/builddeb ppa: contrib/builddeb --source-only docker-debian-jessie: mkdir -p packages/debian-jessie contrib/dockerdeb debian jessie contrib/docker/ubuntu-%: contrib/docker/ubuntu.template sed "s/__CODENAME__/$*/" $< > $@ docker-ubuntu-trusty: contrib/docker/ubuntu-trusty contrib/dockerdeb ubuntu trusty docker-ubuntu-trusty-ppa: contrib/docker/ubuntu-trusty contrib/dockerdeb ubuntu trusty --source-only docker-ubuntu-wily: contrib/docker/ubuntu-wily contrib/dockerdeb ubuntu wily docker-ubuntu-wily-ppa: contrib/docker/ubuntu-wily contrib/dockerdeb ubuntu wily --source-only docker-ubuntu-xenial: contrib/docker/ubuntu-xenial contrib/dockerdeb ubuntu xenial docker-ubuntu-xenial-ppa: contrib/docker/ubuntu-xenial contrib/dockerdeb ubuntu xenial --source-only docker-ubuntu-yakkety: contrib/docker/ubuntu-yakkety contrib/dockerdeb ubuntu yakkety docker-ubuntu-yakkety-ppa: contrib/docker/ubuntu-yakkety contrib/dockerdeb ubuntu yakkety --source-only 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 cleanbutpackages 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