171 lines
5.0 KiB
Python
Executable File
171 lines
5.0 KiB
Python
Executable File
#!/usr/bin/env python2
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"""
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Check dependendies and give recommendations about how to satisfy them
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Limitations:
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* Does not detect whether packages are already installed. Solving this requires writing more of a configuration
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management system. Or we could switch to an existing one.
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* Not fully PEP508 compliant. Not slightly. It makes bold assumptions about the simplicity of the contents of
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EXTRAS_REQUIRE. This is fine because most developers do, too.
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"""
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import os
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import sys
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from distutils.errors import CompileError
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try:
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from setuptools.dist import Distribution
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from setuptools.extension import Extension
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from setuptools.command.build_ext import build_ext
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HAVE_SETUPTOOLS = True
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# another import from setuptools is in setup.py
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from setup import EXTRAS_REQUIRE
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except ImportError:
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HAVE_SETUPTOOLS = False
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EXTRAS_REQUIRE = []
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from importlib import import_module
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from src.depends import detectOS, PACKAGES, PACKAGE_MANAGER
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COMPILING = {
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"Debian": "build-essential libssl-dev",
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"Ubuntu": "build-essential libssl-dev",
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"Fedora": "gcc-c++ redhat-rpm-config python-devel openssl-devel",
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"openSUSE": "gcc-c++ libopenssl-devel python-devel",
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"optional": False,
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}
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# OS-specific dependencies for optional components listed in EXTRAS_REQUIRE
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EXTRAS_REQUIRE_DEPS = {
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# The values from setup.EXTRAS_REQUIRE
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'python_prctl': {
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# The packages needed for this requirement, by OS
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"OpenBSD": [""],
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"FreeBSD": [""],
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"Debian": ["libcap-dev python-prctl"],
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"Ubuntu": ["libcap-dev python-prctl"],
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"Ubuntu 12": ["libcap-dev python-prctl"],
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"openSUSE": [""],
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"Fedora": ["prctl"],
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"Guix": [""],
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"Gentoo": ["dev-python/python-prctl"],
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},
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}
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def detectPrereqs(missing=True):
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available = []
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for module in PACKAGES:
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try:
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import_module(module)
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if not missing:
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available.append(module)
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except ImportError:
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if missing:
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available.append(module)
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return available
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def prereqToPackages():
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if not detectPrereqs():
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return
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print("%s %s" % (
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PACKAGE_MANAGER[detectOS()], " ".join(
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PACKAGES[x][detectOS()] for x in detectPrereqs())))
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def compilerToPackages():
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if not detectOS() in COMPILING:
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return
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print("%s %s" % (
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PACKAGE_MANAGER[detectOS.result], COMPILING[detectOS.result]))
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def testCompiler():
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if not HAVE_SETUPTOOLS:
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# silent, we can't test without setuptools
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return True
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bitmsghash = Extension(
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'bitmsghash',
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sources=['src/bitmsghash/bitmsghash.cpp'],
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libraries=['pthread', 'crypto'],
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)
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dist = Distribution()
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dist.ext_modules = [bitmsghash]
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cmd = build_ext(dist)
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cmd.initialize_options()
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cmd.finalize_options()
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cmd.force = True
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try:
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cmd.run()
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except CompileError:
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return False
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else:
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fullPath = os.path.join(cmd.build_lib, cmd.get_ext_filename("bitmsghash"))
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return os.path.isfile(fullPath)
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prereqs = detectPrereqs()
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compiler = testCompiler()
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if (not compiler or prereqs) and detectOS() in PACKAGE_MANAGER:
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print(
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"It looks like you're using %s. "
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"It is highly recommended to use the package manager\n"
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"to install the missing dependencies." % detectOS.result)
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if not compiler:
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print(
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"Building the bitmsghash module failed.\n"
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"You may be missing a C++ compiler and/or the OpenSSL headers.")
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if prereqs:
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mandatory = [x for x in prereqs if not PACKAGES[x].get("optional")]
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optional = [x for x in prereqs if PACKAGES[x].get("optional")]
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if mandatory:
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print("Missing mandatory dependencies: %s" % " ".join(mandatory))
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if optional:
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print("Missing optional dependencies: %s" % " ".join(optional))
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for package in optional:
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print(PACKAGES[package].get('description'))
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# Install the system dependencies of optional extras_require components
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OPSYS = detectOS()
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CMD = PACKAGE_MANAGER[OPSYS] if OPSYS in PACKAGE_MANAGER else 'UNKNOWN_INSTALLER'
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for lhs, rhs in EXTRAS_REQUIRE.items():
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if OPSYS is None:
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break
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if rhs and any([
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EXTRAS_REQUIRE_DEPS[x][OPSYS]
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for x in rhs
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if x in EXTRAS_REQUIRE_DEPS
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]):
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rhs_cmd = ''.join([
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CMD,
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' ',
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' '.join([
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''. join([
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xx for xx in EXTRAS_REQUIRE_DEPS[x][OPSYS]
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])
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for x in rhs
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if x in EXTRAS_REQUIRE_DEPS
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]),
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])
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print(
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"Optional dependency `pip install .[{}]` would require `{}`"
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" to be run as root".format(lhs, rhs_cmd))
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if (not compiler or prereqs) and OPSYS in PACKAGE_MANAGER:
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print("You can install the missing dependencies by running, as root:")
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if not compiler:
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compilerToPackages()
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prereqToPackages()
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if mandatory:
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sys.exit(1)
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else:
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print("All the dependencies satisfied, you can install PyBitmessage")
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