Allow working with Twisted >= 13 on Windows if pywin32 is manually installed. fixes...

[tahoe-lafs/tahoe-lafs.git] / src / allmydata / _auto_deps.py

diff --git a/src/allmydata/_auto_deps.py b/src/allmydata/_auto_deps.py
index 5052ab85aca1cbea104df73c54fdb406bed60150..9c0bdab2be6b4d7ffb95027eea9188fbc7a0e583 100644 (file)
--- a/src/allmydata/_auto_deps.py
+++ b/src/allmydata/_auto_deps.py
@@ -4,6 +4,17 @@
 # It is ok to import modules from the Python Standard Library if they are
 # always available, or the import is protected by try...except ImportError.
 
+# The semantics for requirement specs changed incompatibly in setuptools 8,
+# which now follows PEP 440. The requirements used in this file must be valid
+# under both the old and new semantics. That can be achieved by limiting
+# requirement specs to one of the following forms:
+#
+#   * >= X, <= Y where X < Y
+#   * >= X, != Y, != Z, ... where X < Y < Z...
+#
+# (In addition, check_requirement in allmydata/__init__.py only supports
+# >=, <= and != operators.)
+
 install_requires = [
     # We require newer versions of setuptools (actually
     # zetuptoolz) to build, but can handle older versions to run.
@@ -16,25 +27,33 @@ install_requires = [
 
     # zope.interface >= 3.6.0 is required for Twisted >= 12.1.0.
     # zope.interface 3.6.3 and 3.6.4 are incompatible with Nevow (#1435).
-    "zope.interface == 3.6.0, == 3.6.1, == 3.6.2, >= 3.6.5",
+    "zope.interface >= 3.6.0, != 3.6.3, != 3.6.4",
 
     # * foolscap < 0.5.1 had a performance bug which spent O(N**2) CPU for
     #   transferring large mutable files of size N.
     # * foolscap < 0.6 is incompatible with Twisted 10.2.0.
     # * foolscap 0.6.1 quiets a DeprecationWarning.
     # * foolscap < 0.6.3 is incompatible with Twisted 11.1.0 and newer.
-    "foolscap >= 0.6.3",
+    # * foolscap 0.8.0 generates 2048-bit RSA-with-SHA-256 signatures,
+    #   rather than 1024-bit RSA-with-MD5. This also allows us to work
+    #   with a FIPS build of OpenSSL.
+    "foolscap >= 0.8.0",
 
     # Needed for SFTP.
     # pycrypto 2.2 doesn't work due to <https://bugs.launchpad.net/pycrypto/+bug/620253>
     # pycrypto 2.4 doesn't work due to <https://bugs.launchpad.net/pycrypto/+bug/881130>
-    "pycrypto == 2.1.0, == 2.3, >= 2.4.1",
+    "pycrypto >= 2.1.0, != 2.2, != 2.4",
 
     # <http://www.voidspace.org.uk/python/mock/>, 0.8.0 provides "call"
     "mock >= 0.8.0",
 
     # pycryptopp-0.6.0 includes ed25519
     "pycryptopp >= 0.6.0",
+
+    "service-identity",         # this is needed to suppress complaints about being unable to verify certs
+    "characteristic >= 14.0.0", # latest service-identity depends on this version
+    "pyasn1 >= 0.1.4",          # latest pyasn1-modules depends on this version
+    "pyasn1-modules >= 0.0.5",  # service-identity depends on this
 ]
 
 # Includes some indirect dependencies, but does not include allmydata.
@@ -54,6 +73,9 @@ package_imports = [
     ('pycrypto',         'Crypto'),
     ('pyasn1',           'pyasn1'),
     ('mock',             'mock'),
+    ('service-identity', 'service_identity'),
+    ('characteristic',   'characteristic'),
+    ('pyasn1-modules',   'pyasn1_modules'),
 ]
 
 # Dependencies for which we don't know how to get a version number at run-time.
@@ -61,7 +83,6 @@ not_import_versionable = [
     'zope.interface',
     'mock',
     'pyasn1',
-    'pyasn1-modules',
 ]
 
 # Dependencies reported by pkg_resources that we can safely ignore.
@@ -89,7 +110,14 @@ if not hasattr(sys, 'frozen'):
 # <https://tahoe-lafs.org/trac/tahoe-lafs/ticket/2249> and
 # <https://tahoe-lafs.org/trac/tahoe-lafs/ticket/2028>.
 
+_use_old_Twisted_and_Nevow = False
 if sys.platform == "win32":
+    try:
+        import win32api
+    except ImportError:
+        _use_old_Twisted_and_Nevow = True
+
+if _use_old_Twisted_and_Nevow:
     install_requires += [
         # * On Windows we need at least Twisted 9.0 to avoid an indirect
         #   dependency on pywin32.
@@ -99,10 +127,12 @@ if sys.platform == "win32":
         #   which includes the fix to <https://twistedmatrix.com/trac/ticket/411>.
         # * The SFTP frontend depends on Twisted 11.0.0 to fix the SSH server
         #   rekeying bug <https://twistedmatrix.com/trac/ticket/4395>
-        # * We don't want Twisted >= 12.3.0 to avoid a dependency of its endpoints
+        # * The FTP frontend depends on Twisted >=11.1.0 for
+        #   filepath.Permissions
+        # * We don't want Twisted >= 12.2.0 to avoid a dependency of its endpoints
         #   code on pywin32. <https://tahoe-lafs.org/trac/tahoe-lafs/ticket/2028>
         #
-        "Twisted == 11.0.0, == 11.1.0, == 12.0.0, == 12.1.0, == 12.2.0",
+        "Twisted >= 11.1.0, <= 12.1.0",
 
         # * We need Nevow >= 0.9.33 to avoid a bug in Nevow's setup.py
         #   which imported twisted at setup time.
@@ -110,10 +140,7 @@ if sys.platform == "win32":
         #   which conflicts with the Twisted requirement above.
         #   <https://tahoe-lafs.org/trac/tahoe-lafs/ticket/2291>
         #
-        "Nevow == 0.9.33, == 0.10",
-
-        # pyasn1 is needed by twisted.conch in Twisted >= 9.0.
-        "pyasn1 >= 0.0.8a",
+        "Nevow >= 0.9.33, <= 0.10",
     ]
 else:
     install_requires += [
@@ -130,17 +157,6 @@ else:
 
         # Nevow >= 0.11.1 can be installed using pip.
         "Nevow >= 0.11.1",
-
-        "service-identity",         # this is needed to suppress complaints about being unable to verify certs
-        "characteristic >= 14.0.0", # latest service-identity depends on this version
-        "pyasn1 >= 0.1.4",          # latest pyasn1-modules depends on this version
-        "pyasn1-modules",           # service-identity depends on this
-    ]
-
-    package_imports += [
-        ('service-identity', 'service_identity'),
-        ('characteristic',   'characteristic'),
-        ('pyasn1-modules',   'pyasn1_modules'),
     ]
 
 
@@ -193,6 +209,7 @@ if _can_use_pyOpenSSL_0_14:
         "cryptography",
         "cffi >= 0.8",          # latest cryptography depends on this version
         "six >= 1.4.1",         # latest cryptography depends on this version
+        "enum34",               # latest cryptography depends on this
         "pycparser",            # cffi depends on this
     ]
 
@@ -200,11 +217,12 @@ if _can_use_pyOpenSSL_0_14:
         ('cryptography',     'cryptography'),
         ('cffi',             'cffi'),
         ('six',              'six'),
+        ('enum34',           'enum'),
         ('pycparser',        'pycparser'),
     ]
 else:
     install_requires += [
-        "pyOpenSSL == 0.13, == 0.13.1",
+        "pyOpenSSL >= 0.13, <= 0.13.1",
     ]