tests/test-newercgi.t

checknlink: return False if .hgtmp file preexists (issue2517)

If os_link fails on Windows, errno is always errno.EINVAL,
so we can't really say if the testlink could not be created
because (a) the FS doesn't support hardlinks or (b) there
is a leaked .hgtmp file lying around from a previous crashed
run.

So let's err on the safe side, keep the code simple and assume
we can't detect hardlinks in both cases.

This is a rudimentary test of the CGI files as of d74fc8dec2b4.

  $ hg init test

  $ cat >hgweb.cgi <<HGWEB
  > #!/usr/bin/env python
  > #
  > # An example CGI script to use hgweb, edit as necessary
  > 
  > import cgitb
  > cgitb.enable()
  > 
  > from mercurial import demandimport; demandimport.enable()
  > from mercurial.hgweb import hgweb
  > from mercurial.hgweb import wsgicgi
  > 
  > application = hgweb("test", "Empty test repository")
  > wsgicgi.launch(application)
  > HGWEB

  $ chmod 755 hgweb.cgi

  $ cat >hgweb.config <<HGWEBDIRCONF
  > [paths]
  > test = test
  > HGWEBDIRCONF

  $ cat >hgwebdir.cgi <<HGWEBDIR
  > #!/usr/bin/env python
  > #
  > # An example CGI script to export multiple hgweb repos, edit as necessary
  > 
  > import cgitb
  > cgitb.enable()
  > 
  > from mercurial import demandimport; demandimport.enable()
  > from mercurial.hgweb import hgwebdir
  > from mercurial.hgweb import wsgicgi
  > 
  > application = hgwebdir("hgweb.config")
  > wsgicgi.launch(application)
  > HGWEBDIR

  $ chmod 755 hgwebdir.cgi

  $ DOCUMENT_ROOT="/var/www/hg"; export DOCUMENT_ROOT
  $ GATEWAY_INTERFACE="CGI/1.1"; export GATEWAY_INTERFACE
  $ HTTP_ACCEPT="text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5"; export HTTP_ACCEPT
  $ HTTP_ACCEPT_CHARSET="ISO-8859-1,utf-8;q=0.7,*;q=0.7"; export HTTP_ACCEPT_CHARSET
  $ HTTP_ACCEPT_ENCODING="gzip,deflate"; export HTTP_ACCEPT_ENCODING
  $ HTTP_ACCEPT_LANGUAGE="en-us,en;q=0.5"; export HTTP_ACCEPT_LANGUAGE
  $ HTTP_CACHE_CONTROL="max-age=0"; export HTTP_CACHE_CONTROL
  $ HTTP_CONNECTION="keep-alive"; export HTTP_CONNECTION
  $ HTTP_HOST="hg.omnifarious.org"; export HTTP_HOST
  $ HTTP_KEEP_ALIVE="300"; export HTTP_KEEP_ALIVE
  $ HTTP_USER_AGENT="Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.8.0.4) Gecko/20060608 Ubuntu/dapper-security Firefox/1.5.0.4"; export HTTP_USER_AGENT
  $ PATH_INFO="/"; export PATH_INFO
  $ PATH_TRANSLATED="/var/www/hg/index.html"; export PATH_TRANSLATED
  $ QUERY_STRING=""; export QUERY_STRING
  $ REMOTE_ADDR="127.0.0.2"; export REMOTE_ADDR
  $ REMOTE_PORT="44703"; export REMOTE_PORT
  $ REQUEST_METHOD="GET"; export REQUEST_METHOD
  $ REQUEST_URI="/test/"; export REQUEST_URI
  $ SCRIPT_FILENAME="/home/hopper/hg_public/test.cgi"; export SCRIPT_FILENAME
  $ SCRIPT_NAME="/test"; export SCRIPT_NAME
  $ SCRIPT_URI="http://hg.omnifarious.org/test/"; export SCRIPT_URI
  $ SCRIPT_URL="/test/"; export SCRIPT_URL
  $ SERVER_ADDR="127.0.0.1"; export SERVER_ADDR
  $ SERVER_ADMIN="eric@localhost"; export SERVER_ADMIN
  $ SERVER_NAME="hg.omnifarious.org"; export SERVER_NAME
  $ SERVER_PORT="80"; export SERVER_PORT
  $ SERVER_PROTOCOL="HTTP/1.1"; export SERVER_PROTOCOL
  $ SERVER_SIGNATURE="<address>Apache/2.0.53 (Fedora) Server at hg.omnifarious.org Port 80</address>"; export SERVER_SIGNATURE
  $ SERVER_SOFTWARE="Apache/2.0.53 (Fedora)"; export SERVER_SOFTWARE

  $ python hgweb.cgi > page1
  $ python hgwebdir.cgi > page2

  $ PATH_INFO="/test/"
  $ PATH_TRANSLATED="/var/something/test.cgi"
  $ REQUEST_URI="/test/test/"
  $ SCRIPT_URI="http://hg.omnifarious.org/test/test/"
  $ SCRIPT_URL="/test/test/"

  $ python hgwebdir.cgi > page3

  $ grep -i error page1 page2 page3
  [1]