dev-python/cherrypy: Add pypy3 love

Signed-off-by: Michał Górny <mgorny@gentoo.org>

2 files changed, 423 insertions, 2 deletions

diff --git a/dev-python/cherrypy/cherrypy-18.6.1.ebuild b/dev-python/cherrypy/cherrypy-18.6.1.ebuild
index a039a64ffe1e..d1177e6159ad 100644
--- a/dev-python/cherrypy/cherrypy-18.6.1.ebuild
+++ b/dev-python/cherrypy/cherrypy-18.6.1.ebuild
@@ -1,9 +1,9 @@
-# Copyright 1999-2021 Gentoo Authors
+# Copyright 1999-2022 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
 
-PYTHON_COMPAT=( python3_{8..10} )
+PYTHON_COMPAT=( python3_{8..10} pypy3 )
 inherit distutils-r1
 
 MY_P="CherryPy-${PV}"
@@ -40,6 +40,11 @@ BDEPEND="
 distutils_enable_tests pytest
 
 python_prepare_all() {
+	local PATCHES=(
+		# https://github.com/cherrypy/cherrypy/pull/1946
+		"${FILESDIR}"/${P}-close-files.patch
+	)
+
 	sed -r -e '/(pytest-sugar|pytest-cov)/ d' \
 		-i setup.py || die
 
diff --git a/dev-python/cherrypy/files/cherrypy-18.6.1-close-files.patch b/dev-python/cherrypy/files/cherrypy-18.6.1-close-files.patch
new file mode 100644
index 000000000000..478d717dfb8c
--- /dev/null
+++ b/dev-python/cherrypy/files/cherrypy-18.6.1-close-files.patch
@@ -0,0 +1,416 @@
+From 94a2cc036203c6da55174ef3b105c0c875bbc79f Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Micha=C5=82=20G=C3=B3rny?= <mgorny@gentoo.org>
+Date: Mon, 31 Jan 2022 22:25:34 +0100
+Subject: [PATCH] Use context managers to close files properly and fix tests on
+ PyPy
+
+Use context managers (`with`) to ensure that all open files are closed
+correctly.  This resolves resource leaks and test failures with PyPy3.7.
+
+The code prior to this change used four approaches for closing files:
+
+1. Using a context manager (`with` clause).
+
+2. Using a try/finally clause.
+
+3. Closing the file in the same scope (unreliable: file object can leak
+   on exception).
+
+4. Not closing open files at all.
+
+The last point is a real problem for PyPy since it does not GC
+unreachable objects as aggressively as CPython does.  While leaving
+a function scope on CPython causes the file objects private to it to
+be destroyed (and therefore closed), in PyPy they can stay dangling
+for some time.  When combines with buffered writes, this means that
+writes can still remain pending after returning from function.
+
+Using a context manager is a simple, consistent way to ensure that
+the file object is closed once it is no longer needed.  In turn, this
+guarantees that all pending writes will be performed upon function
+return and the code won't be hiting race conditions between writing
+a file and reading it afterwards.
+---
+ cherrypy/_cperror.py         |  3 ++-
+ cherrypy/_cpmodpy.py         |  5 +----
+ cherrypy/lib/auth_digest.py  | 13 ++++++------
+ cherrypy/lib/covercp.py      | 40 ++++++++++++++++++------------------
+ cherrypy/lib/reprconf.py     |  5 +----
+ cherrypy/lib/sessions.py     | 10 ++-------
+ cherrypy/process/plugins.py  |  3 ++-
+ cherrypy/test/helper.py      |  3 ++-
+ cherrypy/test/logtest.py     | 33 ++++++++++++++++-------------
+ cherrypy/test/modfastcgi.py  |  5 +----
+ cherrypy/test/modfcgid.py    |  5 +----
+ cherrypy/test/modpy.py       |  5 +----
+ cherrypy/test/modwsgi.py     |  5 +----
+ cherrypy/test/test_core.py   |  5 ++---
+ cherrypy/test/test_states.py | 11 +++++-----
+ 15 files changed, 67 insertions(+), 84 deletions(-)
+
+diff --git a/cherrypy/_cperror.py b/cherrypy/_cperror.py
+index 4e727682..ebf1dcf6 100644
+--- a/cherrypy/_cperror.py
++++ b/cherrypy/_cperror.py
+@@ -532,7 +532,8 @@ def get_error_page(status, **kwargs):
+                     return result
+             else:
+                 # Load the template from this path.
+-                template = io.open(error_page, newline='').read()
++                with io.open(error_page, newline='') as f:
++                    template = f.read()
+         except Exception:
+             e = _format_exception(*_exc_info())[-1]
+             m = kwargs['message']
+diff --git a/cherrypy/_cpmodpy.py b/cherrypy/_cpmodpy.py
+index 0e608c48..a08f0ed9 100644
+--- a/cherrypy/_cpmodpy.py
++++ b/cherrypy/_cpmodpy.py
+@@ -339,11 +339,8 @@ LoadModule python_module modules/mod_python.so
+                                      }
+ 
+         mpconf = os.path.join(os.path.dirname(__file__), 'cpmodpy.conf')
+-        f = open(mpconf, 'wb')
+-        try:
++        with open(mpconf, 'wb') as f:
+             f.write(conf_data)
+-        finally:
+-            f.close()
+ 
+         response = read_process(self.apache_path, '-k start -f %s' % mpconf)
+         self.ready = True
+diff --git a/cherrypy/lib/auth_digest.py b/cherrypy/lib/auth_digest.py
+index fbb5df64..981e9a5d 100644
+--- a/cherrypy/lib/auth_digest.py
++++ b/cherrypy/lib/auth_digest.py
+@@ -101,13 +101,12 @@ def get_ha1_file_htdigest(filename):
+     """
+     def get_ha1(realm, username):
+         result = None
+-        f = open(filename, 'r')
+-        for line in f:
+-            u, r, ha1 = line.rstrip().split(':')
+-            if u == username and r == realm:
+-                result = ha1
+-                break
+-        f.close()
++        with open(filename, 'r') as f:
++            for line in f:
++                u, r, ha1 = line.rstrip().split(':')
++                if u == username and r == realm:
++                    result = ha1
++                    break
+         return result
+ 
+     return get_ha1
+diff --git a/cherrypy/lib/covercp.py b/cherrypy/lib/covercp.py
+index 3e219713..005fafa5 100644
+--- a/cherrypy/lib/covercp.py
++++ b/cherrypy/lib/covercp.py
+@@ -334,26 +334,26 @@ class CoverStats(object):
+         yield '</body></html>'
+ 
+     def annotated_file(self, filename, statements, excluded, missing):
+-        source = open(filename, 'r')
+-        buffer = []
+-        for lineno, line in enumerate(source.readlines()):
+-            lineno += 1
+-            line = line.strip('\n\r')
+-            empty_the_buffer = True
+-            if lineno in excluded:
+-                template = TEMPLATE_LOC_EXCLUDED
+-            elif lineno in missing:
+-                template = TEMPLATE_LOC_NOT_COVERED
+-            elif lineno in statements:
+-                template = TEMPLATE_LOC_COVERED
+-            else:
+-                empty_the_buffer = False
+-                buffer.append((lineno, line))
+-            if empty_the_buffer:
+-                for lno, pastline in buffer:
+-                    yield template % (lno, cgi.escape(pastline))
+-                buffer = []
+-                yield template % (lineno, cgi.escape(line))
++        with open(filename, 'r') as source:
++            buffer = []
++            for lineno, line in enumerate(source.readlines()):
++                lineno += 1
++                line = line.strip('\n\r')
++                empty_the_buffer = True
++                if lineno in excluded:
++                    template = TEMPLATE_LOC_EXCLUDED
++                elif lineno in missing:
++                    template = TEMPLATE_LOC_NOT_COVERED
++                elif lineno in statements:
++                    template = TEMPLATE_LOC_COVERED
++                else:
++                    empty_the_buffer = False
++                    buffer.append((lineno, line))
++                if empty_the_buffer:
++                    for lno, pastline in buffer:
++                        yield template % (lno, cgi.escape(pastline))
++                    buffer = []
++                    yield template % (lineno, cgi.escape(line))
+ 
+     @cherrypy.expose
+     def report(self, name):
+diff --git a/cherrypy/lib/reprconf.py b/cherrypy/lib/reprconf.py
+index 3976652e..76381d7b 100644
+--- a/cherrypy/lib/reprconf.py
++++ b/cherrypy/lib/reprconf.py
+@@ -163,11 +163,8 @@ class Parser(configparser.ConfigParser):
+             #     fp = open(filename)
+             # except IOError:
+             #     continue
+-            fp = open(filename)
+-            try:
++            with open(filename) as fp:
+                 self._read(fp, filename)
+-            finally:
+-                fp.close()
+ 
+     def as_dict(self, raw=False, vars=None):
+         """Convert an INI file to a dictionary"""
+diff --git a/cherrypy/lib/sessions.py b/cherrypy/lib/sessions.py
+index 5b3328f2..0f56a4fa 100644
+--- a/cherrypy/lib/sessions.py
++++ b/cherrypy/lib/sessions.py
+@@ -516,11 +516,8 @@ class FileSession(Session):
+         if path is None:
+             path = self._get_file_path()
+         try:
+-            f = open(path, 'rb')
+-            try:
++            with open(path, 'rb') as f:
+                 return pickle.load(f)
+-            finally:
+-                f.close()
+         except (IOError, EOFError):
+             e = sys.exc_info()[1]
+             if self.debug:
+@@ -531,11 +528,8 @@ class FileSession(Session):
+     def _save(self, expiration_time):
+         assert self.locked, ('The session was saved without being locked.  '
+                              "Check your tools' priority levels.")
+-        f = open(self._get_file_path(), 'wb')
+-        try:
++        with open(self._get_file_path(), 'wb') as f:
+             pickle.dump((self._data, expiration_time), f, self.pickle_protocol)
+-        finally:
+-            f.close()
+ 
+     def _delete(self):
+         assert self.locked, ('The session deletion without being locked.  '
+diff --git a/cherrypy/process/plugins.py b/cherrypy/process/plugins.py
+index 2a9952de..e96fb1ce 100644
+--- a/cherrypy/process/plugins.py
++++ b/cherrypy/process/plugins.py
+@@ -436,7 +436,8 @@ class PIDFile(SimplePlugin):
+         if self.finalized:
+             self.bus.log('PID %r already written to %r.' % (pid, self.pidfile))
+         else:
+-            open(self.pidfile, 'wb').write(ntob('%s\n' % pid, 'utf8'))
++            with open(self.pidfile, 'wb') as f:
++                f.write(ntob('%s\n' % pid, 'utf8'))
+             self.bus.log('PID %r written to %r.' % (pid, self.pidfile))
+             self.finalized = True
+     start.priority = 70
+diff --git a/cherrypy/test/helper.py b/cherrypy/test/helper.py
+index c1ca4535..cae49533 100644
+--- a/cherrypy/test/helper.py
++++ b/cherrypy/test/helper.py
+@@ -505,7 +505,8 @@ server.ssl_private_key: r'%s'
+ 
+     def get_pid(self):
+         if self.daemonize:
+-            return int(open(self.pid_file, 'rb').read())
++            with open(self.pid_file, 'rb') as f:
++                return int(f.read())
+         return self._proc.pid
+ 
+     def join(self):
+diff --git a/cherrypy/test/logtest.py b/cherrypy/test/logtest.py
+index 344be987..112bdc25 100644
+--- a/cherrypy/test/logtest.py
++++ b/cherrypy/test/logtest.py
+@@ -97,7 +97,8 @@ class LogCase(object):
+ 
+     def emptyLog(self):
+         """Overwrite self.logfile with 0 bytes."""
+-        open(self.logfile, 'wb').write('')
++        with open(self.logfile, 'wb') as f:
++            f.write('')
+ 
+     def markLog(self, key=None):
+         """Insert a marker line into the log and set self.lastmarker."""
+@@ -105,10 +106,11 @@ class LogCase(object):
+             key = str(time.time())
+         self.lastmarker = key
+ 
+-        open(self.logfile, 'ab+').write(
+-            b'%s%s\n'
+-            % (self.markerPrefix, key.encode('utf-8'))
+-        )
++        with open(self.logfile, 'ab+') as f:
++            f.write(
++                b'%s%s\n'
++                % (self.markerPrefix, key.encode('utf-8'))
++            )
+ 
+     def _read_marked_region(self, marker=None):
+         """Return lines from self.logfile in the marked region.
+@@ -122,20 +124,23 @@ class LogCase(object):
+         logfile = self.logfile
+         marker = marker or self.lastmarker
+         if marker is None:
+-            return open(logfile, 'rb').readlines()
++            with open(logfile, 'rb') as f:
++                return f.readlines()
+ 
+         if isinstance(marker, str):
+             marker = marker.encode('utf-8')
+         data = []
+         in_region = False
+-        for line in open(logfile, 'rb'):
+-            if in_region:
+-                if line.startswith(self.markerPrefix) and marker not in line:
+-                    break
+-                else:
+-                    data.append(line)
+-            elif marker in line:
+-                in_region = True
++        with open(logfile, 'rb') as f:
++            for line in f:
++                if in_region:
++                    if (line.startswith(self.markerPrefix)
++                            and marker not in line):
++                        break
++                    else:
++                        data.append(line)
++                elif marker in line:
++                    in_region = True
+         return data
+ 
+     def assertInLog(self, line, marker=None):
+diff --git a/cherrypy/test/modfastcgi.py b/cherrypy/test/modfastcgi.py
+index 79ec3d18..0c6d01e2 100644
+--- a/cherrypy/test/modfastcgi.py
++++ b/cherrypy/test/modfastcgi.py
+@@ -112,15 +112,12 @@ class ModFCGISupervisor(helper.LocalWSGISupervisor):
+             fcgiconf = os.path.join(curdir, fcgiconf)
+ 
+         # Write the Apache conf file.
+-        f = open(fcgiconf, 'wb')
+-        try:
++        with open(fcgiconf, 'wb') as f:
+             server = repr(os.path.join(curdir, 'fastcgi.pyc'))[1:-1]
+             output = self.template % {'port': self.port, 'root': curdir,
+                                       'server': server}
+             output = output.replace('\r\n', '\n')
+             f.write(output)
+-        finally:
+-            f.close()
+ 
+         result = read_process(APACHE_PATH, '-k start -f %s' % fcgiconf)
+         if result:
+diff --git a/cherrypy/test/modfcgid.py b/cherrypy/test/modfcgid.py
+index d101bd67..ea373004 100644
+--- a/cherrypy/test/modfcgid.py
++++ b/cherrypy/test/modfcgid.py
+@@ -101,15 +101,12 @@ class ModFCGISupervisor(helper.LocalSupervisor):
+             fcgiconf = os.path.join(curdir, fcgiconf)
+ 
+         # Write the Apache conf file.
+-        f = open(fcgiconf, 'wb')
+-        try:
++        with open(fcgiconf, 'wb') as f:
+             server = repr(os.path.join(curdir, 'fastcgi.pyc'))[1:-1]
+             output = self.template % {'port': self.port, 'root': curdir,
+                                       'server': server}
+             output = ntob(output.replace('\r\n', '\n'))
+             f.write(output)
+-        finally:
+-            f.close()
+ 
+         result = read_process(APACHE_PATH, '-k start -f %s' % fcgiconf)
+         if result:
+diff --git a/cherrypy/test/modpy.py b/cherrypy/test/modpy.py
+index 7c288d2c..024453e9 100644
+--- a/cherrypy/test/modpy.py
++++ b/cherrypy/test/modpy.py
+@@ -107,13 +107,10 @@ class ModPythonSupervisor(helper.Supervisor):
+         if not os.path.isabs(mpconf):
+             mpconf = os.path.join(curdir, mpconf)
+ 
+-        f = open(mpconf, 'wb')
+-        try:
++        with open(mpconf, 'wb') as f:
+             f.write(self.template %
+                     {'port': self.port, 'modulename': modulename,
+                      'host': self.host})
+-        finally:
+-            f.close()
+ 
+         result = read_process(APACHE_PATH, '-k start -f %s' % mpconf)
+         if result:
+diff --git a/cherrypy/test/modwsgi.py b/cherrypy/test/modwsgi.py
+index da7d240b..24c72684 100644
+--- a/cherrypy/test/modwsgi.py
++++ b/cherrypy/test/modwsgi.py
+@@ -109,14 +109,11 @@ class ModWSGISupervisor(helper.Supervisor):
+         if not os.path.isabs(mpconf):
+             mpconf = os.path.join(curdir, mpconf)
+ 
+-        f = open(mpconf, 'wb')
+-        try:
++        with open(mpconf, 'wb') as f:
+             output = (self.template %
+                       {'port': self.port, 'testmod': modulename,
+                        'curdir': curdir})
+             f.write(output)
+-        finally:
+-            f.close()
+ 
+         result = read_process(APACHE_PATH, '-k start -f %s' % mpconf)
+         if result:
+diff --git a/cherrypy/test/test_core.py b/cherrypy/test/test_core.py
+index 6fde3a97..42460b3f 100644
+--- a/cherrypy/test/test_core.py
++++ b/cherrypy/test/test_core.py
+@@ -586,9 +586,8 @@ class CoreRequestHandlingTest(helper.CPWebCase):
+     def testFavicon(self):
+         # favicon.ico is served by staticfile.
+         icofilename = os.path.join(localDir, '../favicon.ico')
+-        icofile = open(icofilename, 'rb')
+-        data = icofile.read()
+-        icofile.close()
++        with open(icofilename, 'rb') as icofile:
++            data = icofile.read()
+ 
+         self.getPage('/favicon.ico')
+         self.assertBody(data)
+diff --git a/cherrypy/test/test_states.py b/cherrypy/test/test_states.py
+index 28dd6510..d59a4d87 100644
+--- a/cherrypy/test/test_states.py
++++ b/cherrypy/test/test_states.py
+@@ -424,11 +424,12 @@ test_case_name: "test_signal_handler_unsubscribe"
+         p.join()
+ 
+         # Assert the old handler ran.
+-        log_lines = list(open(p.error_log, 'rb'))
+-        assert any(
+-            line.endswith(b'I am an old SIGTERM handler.\n')
+-            for line in log_lines
+-        )
++        with open(p.error_log, 'rb') as f:
++            log_lines = list(f)
++            assert any(
++                line.endswith(b'I am an old SIGTERM handler.\n')
++                for line in log_lines
++            )
+ 
+ 
+ def test_safe_wait_INADDR_ANY():  # pylint: disable=invalid-name
+-- 
+2.35.1
+