I have Jetty web server from which I want to run hgweb.cgi:
ProcessBuilder builder = new ProcessBuilder("/MyPath/hgweb.cgi");
Then I create Process process = builder.start(); and feed Input stream from request to process forming server response. But there's a problem: some kind of python error I can't understand
File "<stdin>", line 1, in <module>
File "mercurial/hgweb/wsgicgi.py", line 76, in launch
content = application(environ, start_response)
File "mercurial/hgweb/hgweb_mod.py", line 168, in __call__
return self.run_wsgi(req)
File "mercurial/hgweb/hgweb_mod.py", line 177, in run_wsgi
req.url = req.env['SCRIPT_NAME']
KeyError: 'SCRIPT_NAME
That doesn't work from command line neither. I tried to add a header (SCRIPT_NAME, "") to formed request for hgweb.cgi but continue see that message.
In every example of using hgweb people use apache / lighttpd / nginx servers to run hgweb.cgi and I can't understand why nodody did what I want to do.
If anybody could help me with configuring hgweb.cgi or told me a proper way to call .cgi script from java I would be really happy!
I think the reason you can't find any examples is that invoking a Python executable from Java for each request isn't really something anyone recommends. It's slow and insecure. Consider communicating through a pipe with the Command Server which reuses a single Python process and was designed for exactly this sort of thing. There are even Java client libraries.
If you really want to try invoking mercurial as a separate process from Java you needn't be calling the .cgi (or the wsgi which what it looks like you're getting). Just call the main Python executable directly providing the command line arguments and stdin.