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

zstd: vendor zstd 1.1.1...

zstd: vendor zstd 1.1.1 zstd is a new compression format and it is awesome, yielding higher compression ratios and significantly faster compression and decompression operations compared to zlib (our current compression engine of choice) across the board. We want zstd to be a 1st class citizen in Mercurial and to eventually be the preferred compression format for various operations. This patch starts the formal process of supporting zstd by vendoring a copy of zstd. Why do we need to vendor zstd? Good question. First, zstd is relatively new and not widely available yet. If we didn't vendor zstd or distribute it with Mercurial, most users likely wouldn't have zstd installed or even available to install. What good is a feature if you can't use it? Vendoring and distributing the zstd sources gives us the highest liklihood that zstd will be available to Mercurial installs. Second, the Python bindings to zstd (which will be vendored in a separate changeset) make use of zstd APIs that are only available via static linking. One reason they are only available via static linking is that they are unstable and could change at any time. While it might be possible for the Python bindings to attempt to talk to different versions of the zstd C library, the safest thing to do is link against a specific, known-working version of zstd. This is why the Python zstd bindings themselves vendor zstd and why we must as well. This also explains why the added files are in a "python-zstandard" directory. The added files are from the 1.1.1 release of zstd (Git commit from https://github.com/facebook/zstd) and are added without modifications. Not all files from the zstd "distribution" have been added. Notably missing are files to support interacting with "legacy," pre-1.0 versions of zstd. The decision of which files to include is made by the upstream python-zstandard project (which I'm the author of). The files in this commit are a snapshot of the files from the 0.5.0 release of that project, Git commit from https://github.com/indygreg/python-zstandard.

Yuya Nishihara - - Load All Authors

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      PYTHONVER=2.7.10

      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:'

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

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

      	@echo '  Python 2.7'

      	@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:'

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

      	@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

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

      PYTHON_SRCDIR=Python-$(PYTHONVER)

      PYTHON_SRCFILE=$(PYTHON_SRCDIR).tgz

      $(PREFIX)/bin/python:

      	[ -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) ]

      	rm -rf $(PYTHON_SRCDIR)

      	tar xf $(PYTHON_SRCFILE)

      	# 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

      	# 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

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

      	rm -rf $(PYTHON_SRCDIR)

      DOCUTILSVER=0.12

      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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				PYTHONVER=2.7.10
				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:'
				@echo ' $$ make -f Makefile.python python PYTHONVER=${PYTHONVER} PREFIX=/tmp/p27'
				@echo ' $$ /tmp/p27/bin/python -V'
				@echo ' Python 2.7'
				@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:'
				@echo ' $$ for v in 2.{6{,.1,.2,.9},7{,.8,.10}}; do'
				@echo ' make -f Makefile.python symlink PYTHONVER=$$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
				printf 'import sys, zlib, bz2, docutils, ssl' \| $(PREFIX)/bin/python

				PYTHON_SRCDIR=Python-$(PYTHONVER)
				PYTHON_SRCFILE=$(PYTHON_SRCDIR).tgz

				$(PREFIX)/bin/python:
				[ -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) ]
				rm -rf $(PYTHON_SRCDIR)
				tar xf $(PYTHON_SRCFILE)
				# 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
				# 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
				printf 'import sys, zlib, bz2, ssl' \| $(PREFIX)/bin/python
				rm -rf $(PYTHON_SRCDIR)

				DOCUTILSVER=0.12
				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