Mercurial > hg
view tests/test-hgweb-non-interactive.t @ 25937:4f1144c3c72b
demandimport: support lazy loading for absolute_import
Before, we didn't support lazy loading if absolute_import was in
effect and a fromlist was used. This meant that "from . import X"
wasn't lazy and performance could suffer as a result.
With this patch, we now support lazy loading for this scenario.
As part of developing this, I discovered issues when module names
are defined. Since the enforced import style only allows
"from X import Y" or "from .X import Y" in very few scenarios
when absolute_import is enabled - scenarios where Y is not a
module and thus there is nothing to lazy load - I decided to drop
support for this case instead of chasing down the errors. I don't
think much harm will come from this. But I'd like to take another
look once all modules are using absolute_import and I can see the
full extent of what is using names in absolute_import mode.
author | Gregory Szorc <gregory.szorc@gmail.com> |
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date | Sat, 08 Aug 2015 16:13:27 -0700 |
parents | f2719b387380 |
children | ae33fff17c1e |
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Tests if hgweb can run without touching sys.stdin, as is required by the WSGI standard and strictly implemented by mod_wsgi. $ hg init repo $ cd repo $ echo foo > bar $ hg add bar $ hg commit -m "test" $ cat > request.py <<EOF > from mercurial import dispatch > from mercurial.hgweb.hgweb_mod import hgweb > from mercurial.ui import ui > from mercurial import hg > from StringIO import StringIO > import os, sys > > class FileLike(object): > def __init__(self, real): > self.real = real > def fileno(self): > print >> sys.__stdout__, 'FILENO' > return self.real.fileno() > def read(self): > print >> sys.__stdout__, 'READ' > return self.real.read() > def readline(self): > print >> sys.__stdout__, 'READLINE' > return self.real.readline() > > sys.stdin = FileLike(sys.stdin) > errors = StringIO() > input = StringIO() > output = StringIO() > > def startrsp(status, headers): > print '---- STATUS' > print status > print '---- HEADERS' > print [i for i in headers if i[0] != 'ETag'] > print '---- DATA' > return output.write > > env = { > 'wsgi.version': (1, 0), > 'wsgi.url_scheme': 'http', > 'wsgi.errors': errors, > 'wsgi.input': input, > 'wsgi.multithread': False, > 'wsgi.multiprocess': False, > 'wsgi.run_once': False, > 'REQUEST_METHOD': 'GET', > 'SCRIPT_NAME': '', > 'PATH_INFO': '', > 'QUERY_STRING': '', > 'SERVER_NAME': '127.0.0.1', > 'SERVER_PORT': os.environ['HGPORT'], > 'SERVER_PROTOCOL': 'HTTP/1.0' > } > > i = hgweb('.') > i(env, startrsp) > print '---- ERRORS' > print errors.getvalue() > print '---- OS.ENVIRON wsgi variables' > print sorted([x for x in os.environ if x.startswith('wsgi')]) > print '---- request.ENVIRON wsgi variables' > print sorted([x for x in i.repo.ui.environ if x.startswith('wsgi')]) > EOF $ python request.py ---- STATUS 200 Script output follows ---- HEADERS [('Content-Type', 'text/html; charset=ascii')] ---- DATA ---- ERRORS ---- OS.ENVIRON wsgi variables [] ---- request.ENVIRON wsgi variables ['wsgi.errors', 'wsgi.input', 'wsgi.multiprocess', 'wsgi.multithread', 'wsgi.run_once', 'wsgi.url_scheme', 'wsgi.version'] $ cd ..