upstream/mercurial-mirror Files · contrib/Makefile.python

revlog: skeleton support for version 2 revlogs...

revlog: skeleton support for version 2 revlogs There are a number of improvements we want to make to revlogs that will require a new version - version 2. It is unclear what the full set of improvements will be or when we'll be done with them. What I do know is that the process will likely take longer than a single release, will require input from various stakeholders to evaluate changes, and will have many contentious debates and bikeshedding. It is unrealistic to develop revlog version 2 up front: there are just too many uncertainties that we won't know until things are implemented and experiments are run. Some changes will also be invasive and prone to bit rot, so sitting on dozens of patches is not practical. This commit introduces skeleton support for version 2 revlogs in a way that is flexible and not bound by backwards compatibility concerns. An experimental repo requirement for denoting revlog v2 has been added. The requirement string has a sub-version component to it. This will allow us to declare multiple requirements in the course of developing revlog v2. Whenever we change the in-development revlog v2 format, we can tweak the string, creating a new requirement and locking out old clients. This will allow us to make as many backwards incompatible changes and experiments to revlog v2 as we want. In other words, we can land code and make meaningful progress towards revlog v2 while still maintaining extreme format flexibility up until the point we freeze the format and remove the experimental labels. To enable the new repo requirement, you must supply an experimental and undocumented config option. But not just any boolean flag will do: you need to explicitly use a value that no sane person should ever type. This is an additional guard against enabling revlog v2 on an installation it shouldn't be enabled on. The specific scenario I'm trying to prevent is say a user with a 4.4 client with a frozen format enabling the option but then downgrading to 4.3 and accidentally creating repos with an outdated and unsupported repo format. Requiring a "challenge" string should prevent this. Because the format is not yet finalized and I don't want to take any chances, revlog v2's version is currently 0xDEAD. I figure squatting on a value we're likely never to use as an actual revlog version to mean "internal testing only" is acceptable. And "dead" is easily recognized as something meaningful. There is a bunch of cleanup that is needed before work on revlog v2 begins in earnest. I plan on doing that work once this patch is accepted and we're comfortable with the idea of starting down this path.

Yuya Nishihara - - Load All Authors

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        Mads Kiilerich
    
contrib: offer Python 2.7.10

              r26735
            
      PYTHONVER=2.7.10

        Mads Kiilerich
    
contrib/Makefile.python: build local Python from source...

              r20388
            
      PYTHONNAME=python-

      PREFIX=$(HOME)/bin/prefix-$(PYTHONNAME)$(PYTHONVER)

      SYMLINKDIR=$(HOME)/bin

      help:

      	@echo

      	@echo 'Make a custom installation of a Python version'

      	@echo

      	@echo 'Common make parameters:'

      	@echo '  PYTHONVER=...    [$(PYTHONVER)]'

      	@echo '  PREFIX=...       [$(PREFIX)]'

      	@echo '  SYMLINKDIR=...   [$(SYMLINKDIR) creating $(PYTHONNAME)$(PYTHONVER)]'

      	@echo

      	@echo 'Common make targets:'

      	@echo '  python    - install Python $$PYTHONVER in $$PREFIX'

      	@echo '  symlink   - create a $$SYMLINKDIR/$(PYTHONNAME)$$PYTHONVER symlink'

      	@echo

      	@echo 'Example: create a temporary Python installation:'

        Mads Kiilerich
    
contrib: offer Python 2.7.10

              r26735
            
      	@echo '  $$ make -f Makefile.python python PYTHONVER=${PYTHONVER} PREFIX=/tmp/p27'

      	@echo '  $$ /tmp/p27/bin/python -V'

      	@echo '  Python 2.7'

        Mads Kiilerich
    
contrib/Makefile.python: build local Python from source...

              r20388
            
      	@echo

      	@echo 'Some external libraries are required for building Python: zlib bzip2 openssl.'

      	@echo 'Make sure their development packages are installed systemwide.'

      # fedora: yum install zlib-devel bzip2-devel openssl-devel

      # debian: apt-get install zlib1g-dev libbz2-dev libssl-dev

      	@echo

      	@echo 'To build a nice collection of interesting Python versions:'

        Mads Kiilerich
    
contrib: offer Python 2.7.10

              r26735
            
      	@echo '  $$ for v in 2.{6{,.1,.2,.9},7{,.8,.10}}; do'

        Mads Kiilerich
    
contrib/Makefile.python: build local Python from source...

              r20388
            
      	@echo '    make -f Makefile.python symlink PYTHONVER=$$v || break; done'

      	@echo 'To run a Mercurial test on all these Python versions:'

      	@echo '  $$ for py in `cd ~/bin && ls $(PYTHONNAME)2.*`; do'

      	@echo '    echo $$py; $$py run-tests.py test-http.t; echo; done'

      	@echo

      export LANGUAGE=C

      export LC_ALL=C

      python: $(PREFIX)/bin/python docutils

        Mads Kiilerich
    
contrib: drop Python < 2.6 from Makefile.python

              r26734
            
      	printf 'import sys, zlib, bz2, docutils, ssl' | $(PREFIX)/bin/python

        Mads Kiilerich
    
contrib/Makefile.python: build local Python from source...

              r20388
            
      PYTHON_SRCDIR=Python-$(PYTHONVER)

      PYTHON_SRCFILE=$(PYTHON_SRCDIR).tgz

      $(PREFIX)/bin/python:

        Augie Fackler
    
Makefile.python: try curl if wget fails...

              r23824
            
      	[ -f $(PYTHON_SRCFILE) ] || wget http://www.python.org/ftp/python/$(PYTHONVER)/$(PYTHON_SRCFILE) || curl -OL http://www.python.org/ftp/python/$(PYTHONVER)/$(PYTHON_SRCFILE) || [ -f $(PYTHON_SRCFILE) ]

        Mads Kiilerich
    
contrib/Makefile.python: build local Python from source...

              r20388
            
      	rm -rf $(PYTHON_SRCDIR)

      	tar xf $(PYTHON_SRCFILE)

        Yuya Nishihara
    
contrib: disable SSLv3_method() to build old Python with recent libssl...

              r27230
            
      	# Debian/Ubuntu disables SSLv2,3 the hard way, disable it on old Pythons too

      	-sed -i 's,self.*SSLv[23]_method(),0;//\0,g' $(PYTHON_SRCDIR)/Modules/_ssl.c

        Mads Kiilerich
    
contrib/Makefile.python: build local Python from source...

              r20388
            
      	# Find multiarch system libraries on Ubuntu and disable fortify error when setting argv

      	LDFLAGS="-L/usr/lib/`dpkg-architecture -qDEB_HOST_MULTIARCH`"; \

      	BASECFLAGS=-U_FORTIFY_SOURCE; \

      	export LDFLAGS BASECFLAGS; \

      	cd $(PYTHON_SRCDIR) && ./configure --prefix=$(PREFIX) && make all SVNVERSION=pwd && make install

        Mads Kiilerich
    
contrib: drop Python < 2.6 from Makefile.python

              r26734
            
      	printf 'import sys, zlib, bz2, ssl' | $(PREFIX)/bin/python

        Mads Kiilerich
    
contrib/Makefile.python: build local Python from source...

              r20388
            
      	rm -rf $(PYTHON_SRCDIR)

        Mads Kiilerich
    
contrib: update build defaults to latest Python and docutils versions...

              r23140
            
      DOCUTILSVER=0.12

        Mads Kiilerich
    
contrib/Makefile.python: build local Python from source...

              r20388
            
      DOCUTILS_SRCDIR=docutils-$(DOCUTILSVER)

      DOCUTILS_SRCFILE=$(DOCUTILS_SRCDIR).tar.gz

      docutils: $(PREFIX)/bin/python

      	@$(PREFIX)/bin/python -c 'import docutils' || ( set -ex; \

      	[ -f $(DOCUTILS_SRCFILE) ] || wget http://downloads.sourceforge.net/project/docutils/docutils/$(DOCUTILSVER)/$(DOCUTILS_SRCFILE) || [ -f $(DOCUTILS_SRCFILE) ]; \

      	rm -rf $(DOCUTILS_SRCDIR); \

      	tar xf $(DOCUTILS_SRCFILE); \

      	cd $(DOCUTILS_SRCDIR) && $(PREFIX)/bin/python setup.py install --prefix=$(PREFIX); \

      	$(PREFIX)/bin/python -c 'import docutils'; \

      	rm -rf $(DOCUTILS_SRCDIR); )

      symlink: python $(SYMLINKDIR)

      	ln -sf $(PREFIX)/bin/python $(SYMLINKDIR)/$(PYTHONNAME)$(PYTHONVER)

      .PHONY: help python docutils symlink

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Mads Kiilerich contrib: offer Python 2.7.10	r26735	PYTHONVER=2.7.10
Mads Kiilerich contrib/Makefile.python: build local Python from source...	r20388	PYTHONNAME=python-
		PREFIX=$(HOME)/bin/prefix-$(PYTHONNAME)$(PYTHONVER)
		SYMLINKDIR=$(HOME)/bin

		help:
		@echo
		@echo 'Make a custom installation of a Python version'
		@echo
		@echo 'Common make parameters:'
		@echo ' PYTHONVER=... [$(PYTHONVER)]'
		@echo ' PREFIX=... [$(PREFIX)]'
		@echo ' SYMLINKDIR=... [$(SYMLINKDIR) creating $(PYTHONNAME)$(PYTHONVER)]'
		@echo
		@echo 'Common make targets:'
		@echo ' python - install Python $$PYTHONVER in $$PREFIX'
		@echo ' symlink - create a $$SYMLINKDIR/$(PYTHONNAME)$$PYTHONVER symlink'
		@echo
		@echo 'Example: create a temporary Python installation:'
Mads Kiilerich contrib: offer Python 2.7.10	r26735	@echo ' $$ make -f Makefile.python python PYTHONVER=${PYTHONVER} PREFIX=/tmp/p27'
		@echo ' $$ /tmp/p27/bin/python -V'
		@echo ' Python 2.7'
Mads Kiilerich contrib/Makefile.python: build local Python from source...	r20388	@echo
		@echo 'Some external libraries are required for building Python: zlib bzip2 openssl.'
		@echo 'Make sure their development packages are installed systemwide.'
		# fedora: yum install zlib-devel bzip2-devel openssl-devel
		# debian: apt-get install zlib1g-dev libbz2-dev libssl-dev
		@echo
		@echo 'To build a nice collection of interesting Python versions:'
Mads Kiilerich contrib: offer Python 2.7.10	r26735	@echo ' $$ for v in 2.{6{,.1,.2,.9},7{,.8,.10}}; do'
Mads Kiilerich contrib/Makefile.python: build local Python from source...	r20388	@echo ' make -f Makefile.python symlink PYTHONVER=$$v \|\| break; done'
		@echo 'To run a Mercurial test on all these Python versions:'
		@echo ' $$ for py in `cd ~/bin && ls $(PYTHONNAME)2.*`; do'
		@echo ' echo $$py; $$py run-tests.py test-http.t; echo; done'
		@echo

		export LANGUAGE=C
		export LC_ALL=C

		python: $(PREFIX)/bin/python docutils
Mads Kiilerich contrib: drop Python < 2.6 from Makefile.python	r26734	printf 'import sys, zlib, bz2, docutils, ssl' \| $(PREFIX)/bin/python
Mads Kiilerich contrib/Makefile.python: build local Python from source...	r20388
		PYTHON_SRCDIR=Python-$(PYTHONVER)
		PYTHON_SRCFILE=$(PYTHON_SRCDIR).tgz

		$(PREFIX)/bin/python:
Augie Fackler Makefile.python: try curl if wget fails...	r23824	[ -f $(PYTHON_SRCFILE) ] \|\| wget http://www.python.org/ftp/python/$(PYTHONVER)/$(PYTHON_SRCFILE) \|\| curl -OL http://www.python.org/ftp/python/$(PYTHONVER)/$(PYTHON_SRCFILE) \|\| [ -f $(PYTHON_SRCFILE) ]
Mads Kiilerich contrib/Makefile.python: build local Python from source...	r20388	rm -rf $(PYTHON_SRCDIR)
		tar xf $(PYTHON_SRCFILE)
Yuya Nishihara contrib: disable SSLv3_method() to build old Python with recent libssl...	r27230	# Debian/Ubuntu disables SSLv2,3 the hard way, disable it on old Pythons too
		-sed -i 's,self.*SSLv[23]_method(),0;//\0,g' $(PYTHON_SRCDIR)/Modules/_ssl.c
Mads Kiilerich contrib/Makefile.python: build local Python from source...	r20388	# Find multiarch system libraries on Ubuntu and disable fortify error when setting argv
		LDFLAGS="-L/usr/lib/`dpkg-architecture -qDEB_HOST_MULTIARCH`"; \
		BASECFLAGS=-U_FORTIFY_SOURCE; \
		export LDFLAGS BASECFLAGS; \
		cd $(PYTHON_SRCDIR) && ./configure --prefix=$(PREFIX) && make all SVNVERSION=pwd && make install
Mads Kiilerich contrib: drop Python < 2.6 from Makefile.python	r26734	printf 'import sys, zlib, bz2, ssl' \| $(PREFIX)/bin/python
Mads Kiilerich contrib/Makefile.python: build local Python from source...	r20388	rm -rf $(PYTHON_SRCDIR)

Mads Kiilerich contrib: update build defaults to latest Python and docutils versions...	r23140	DOCUTILSVER=0.12
Mads Kiilerich contrib/Makefile.python: build local Python from source...	r20388	DOCUTILS_SRCDIR=docutils-$(DOCUTILSVER)
		DOCUTILS_SRCFILE=$(DOCUTILS_SRCDIR).tar.gz

		docutils: $(PREFIX)/bin/python
		@$(PREFIX)/bin/python -c 'import docutils' \|\| ( set -ex; \
		[ -f $(DOCUTILS_SRCFILE) ] \|\| wget http://downloads.sourceforge.net/project/docutils/docutils/$(DOCUTILSVER)/$(DOCUTILS_SRCFILE) \|\| [ -f $(DOCUTILS_SRCFILE) ]; \
		rm -rf $(DOCUTILS_SRCDIR); \
		tar xf $(DOCUTILS_SRCFILE); \
		cd $(DOCUTILS_SRCDIR) && $(PREFIX)/bin/python setup.py install --prefix=$(PREFIX); \
		$(PREFIX)/bin/python -c 'import docutils'; \
		rm -rf $(DOCUTILS_SRCDIR); )

		symlink: python $(SYMLINKDIR)
		ln -sf $(PREFIX)/bin/python $(SYMLINKDIR)/$(PYTHONNAME)$(PYTHONVER)

		.PHONY: help python docutils symlink