From: Zooko O'Whielacronx Date: Wed, 23 Jan 2008 00:24:33 +0000 (-0700) Subject: setup: require specific versions of dependencies, both at run-time (if pkg_resources... X-Git-Url: https://git.rkrishnan.org/pf/content/en/seg/?a=commitdiff_plain;h=348eecd615379965c60950335492f5d3ed2a16c4;p=tahoe-lafs%2Ftahoe-lafs.git setup: require specific versions of dependencies, both at run-time (if pkg_resources is available) and at build-time, and make there be only once place where we specify those versions Using pkg_resources.require() like this also apparently allows people to install multiple different versions of packages on their system and tahoe (if pkg_resources is available to it) will import the version of the package that it requires. I haven't tested this feature. --- diff --git a/Makefile b/Makefile index 15660a78..df7ea567 100644 --- a/Makefile +++ b/Makefile @@ -160,9 +160,11 @@ signal-error-pyopenssl-dep: @echo exit 1 -check-all-deps: check-deps +check-auto-deps: $(PP) \ - $(PYTHON) -c 'import allmydata, zfec, foolscap, simplejson, nevow, pycryptopp' || $(MAKE) signal-error-deps + $(PYTHON) -c 'import _auto_deps ; _auto_deps.require_auto_deps()' || $(MAKE) signal-error-deps + +check-all-deps: check-deps check-auto-deps check-twisted-dep: $(PYTHON) -c 'import twisted, zope.interface' || $(MAKE) signal-error-twisted-dep diff --git a/_auto_deps.py b/_auto_deps.py new file mode 100644 index 00000000..e505abba --- /dev/null +++ b/_auto_deps.py @@ -0,0 +1,24 @@ +install_requires=["zfec >= 1.3.0", + "foolscap >= 0.2.3", + "simplejson >= 1.7.3", + "pycryptopp >= 0.2.9", + "nevow >= 0.6.0", + "zope.interface >= 3.1.0", + ] + +def require_auto_deps(): + try: + import pkg_resources + except: + # Then we can't assert that the versions of these packages are the right + # versions, but we can still try to use them anyway... + pass + else: + for requirement in install_requires: + pkg_resources.require(requirement) + for requirement in install_requires: + name, cmpop, verstr = requirement.split() + __import__(name) + +if __name__ == "__main__": + require_auto_deps() diff --git a/setup.py b/setup.py index 8ede2810..dd0f2ea0 100644 --- a/setup.py +++ b/setup.py @@ -23,6 +23,16 @@ else: from setuptools import Extension, find_packages, setup +# Make the dependency-version-requirement, which is used by the Makefile at +# build-time, also available to the app at runtime: +import shutil +try: + shutil.copyfile("_auto_deps.py", os.path.join("src", "allmydata", "_auto_deps.py")) +except EnvironmentError: + # Nevermind then -- perhaps it is already in place and in any case we can do + # without it. + pass + trove_classifiers=[ "Development Status :: 4 - Beta", "Environment :: Console", @@ -103,13 +113,7 @@ setup_requires.append('darcsver >= 1.0.0') if not os.path.exists('PKG-INFO'): setup_requires.append('setuptools_darcs >= 1.1.0') -install_requires=["zfec >= 1.3.0", - "foolscap >= 0.2.3", - "simplejson >= 1.7.3", - "pycryptopp >= 0.2.9", - "nevow >= 0.6.0", - "zope.interface >= 3.1.0", - ] +import _auto_deps setup(name='allmydata-tahoe', version=verstr, @@ -123,7 +127,7 @@ setup(name='allmydata-tahoe', packages=find_packages("src"), classifiers=trove_classifiers, test_suite="allmydata.test", - install_requires=install_requires, + install_requires=_auto_deps.install_requires, include_package_data=True, setup_requires=setup_requires, dependency_links=dependency_links, diff --git a/src/allmydata/__init__.py b/src/allmydata/__init__.py index 2d6e7340..d67ec9b0 100644 --- a/src/allmydata/__init__.py +++ b/src/allmydata/__init__.py @@ -20,17 +20,15 @@ hush_pyflakes = __version__ del hush_pyflakes try: - import pkg_resources + import _auto_deps except ImportError: - # nevermind + # Never mind -- even if we can't use pkg_resources to check the required + # version numbers and to select the right one in the case that more than one + # version is available, we can still barrel on and if "import thingie" gives + # us a thingie that works, we're okay. pass else: - pkg_resources.require("zfec >= 1.3.0") - pkg_resources.require("foolscap >= 0.2.3") - pkg_resources.require("simplejson >= 1.7.3") - pkg_resources.require("pycryptopp >= 0.2.9") - pkg_resources.require("nevow >= 0.6.0") - pkg_resources.require("zope.interface >= 3.1.0") + _auto_deps.require_auto_deps() def get_package_versions(): import OpenSSL, allmydata, foolscap, nevow, pycryptopp, simplejson, twisted, zfec