[pypy-commit] pypy default: graphviewer - split the dot2plain function into one for local and one for the codespeak cgi
RonnyPfannschmidt
noreply at buildbot.pypy.org
Mon Sep 26 12:40:36 CEST 2011
Author: Ronny Pfannschmidt <Ronny.Pfannschmidt at gmx.de>
Branch:
Changeset: r47606:7acf2b8fcafd
Date: 2011-09-26 12:40 +0200
http://bitbucket.org/pypy/pypy/changeset/7acf2b8fcafd/
Log: graphviewer - split the dot2plain function into one for local and
one for the codespeak cgi
diff --git a/dotviewer/graphparse.py b/dotviewer/graphparse.py
--- a/dotviewer/graphparse.py
+++ b/dotviewer/graphparse.py
@@ -36,48 +36,45 @@
print >> sys.stderr, "Warning: could not guess file type, using 'dot'"
return 'unknown'
-def dot2plain(content, contenttype, use_codespeak=False):
- if contenttype == 'plain':
- # already a .plain file
- return content
+def dot2plain_graphviz(content, contenttype, use_codespeak=False):
+ if contenttype != 'neato':
+ cmdline = 'dot -Tplain'
+ else:
+ cmdline = 'neato -Tplain'
+ #print >> sys.stderr, '* running:', cmdline
+ close_fds = sys.platform != 'win32'
+ p = subprocess.Popen(cmdline, shell=True, close_fds=close_fds,
+ stdin=subprocess.PIPE, stdout=subprocess.PIPE)
+ (child_in, child_out) = (p.stdin, p.stdout)
+ try:
+ import thread
+ except ImportError:
+ bkgndwrite(child_in, content)
+ else:
+ thread.start_new_thread(bkgndwrite, (child_in, content))
+ plaincontent = child_out.read()
+ child_out.close()
+ if not plaincontent: # 'dot' is likely not installed
+ raise PlainParseError("no result from running 'dot'")
+ return plaincontent
- if not use_codespeak:
- if contenttype != 'neato':
- cmdline = 'dot -Tplain'
- else:
- cmdline = 'neato -Tplain'
- #print >> sys.stderr, '* running:', cmdline
- close_fds = sys.platform != 'win32'
- p = subprocess.Popen(cmdline, shell=True, close_fds=close_fds,
- stdin=subprocess.PIPE, stdout=subprocess.PIPE)
- (child_in, child_out) = (p.stdin, p.stdout)
- try:
- import thread
- except ImportError:
- bkgndwrite(child_in, content)
- else:
- thread.start_new_thread(bkgndwrite, (child_in, content))
- plaincontent = child_out.read()
- child_out.close()
- if not plaincontent: # 'dot' is likely not installed
- raise PlainParseError("no result from running 'dot'")
- else:
- import urllib
- request = urllib.urlencode({'dot': content})
- url = 'http://codespeak.net/pypy/convertdot.cgi'
- print >> sys.stderr, '* posting:', url
- g = urllib.urlopen(url, data=request)
- result = []
- while True:
- data = g.read(16384)
- if not data:
- break
- result.append(data)
- g.close()
- plaincontent = ''.join(result)
- # very simple-minded way to give a somewhat better error message
- if plaincontent.startswith('<body'):
- raise Exception("the dot on codespeak has very likely crashed")
+def dot2plain_codespeak(content, contenttype):
+ import urllib
+ request = urllib.urlencode({'dot': content})
+ url = 'http://codespeak.net/pypy/convertdot.cgi'
+ print >> sys.stderr, '* posting:', url
+ g = urllib.urlopen(url, data=request)
+ result = []
+ while True:
+ data = g.read(16384)
+ if not data:
+ break
+ result.append(data)
+ g.close()
+ plaincontent = ''.join(result)
+ # very simple-minded way to give a somewhat better error message
+ if plaincontent.startswith('<body'):
+ raise Exception("the dot on codespeak has very likely crashed")
return plaincontent
def bkgndwrite(f, data):
@@ -148,10 +145,13 @@
def parse_dot(graph_id, content, links={}, fixedfont=False):
contenttype = guess_type(content)
- try:
- plaincontent = dot2plain(content, contenttype, use_codespeak=False)
- return list(parse_plain(graph_id, plaincontent, links, fixedfont))
- except PlainParseError:
- # failed, retry via codespeak
- plaincontent = dot2plain(content, contenttype, use_codespeak=True)
- return list(parse_plain(graph_id, plaincontent, links, fixedfont))
+ if contenttype == 'plain':
+ plaincontent = content
+ else:
+ try:
+ plaincontent = dot2plain_graphviz(content, contenttype)
+ except PlainParseError, e:
+ print e
+ # failed, retry via codespeak
+ plaincontent = dot2plain_codespeak(content, contenttype)
+ return list(parse_plain(graph_id, plaincontent, links, fixedfont))
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