patch: make parsepatch optionally trim context lines
Previously there is a suspicious `if False and delta > 0` which dates back
to the beginning of hgext/record.py (b2607267236d).
The "trimming context lines" feature could be useful (and is used by the
next patch). So let's enable it. This patch adds a new `maxcontext`
parameter to `recordhunk` and `parsepatch`, changing the `if False`
condition to respect it.
The old `trimcontext` implementation is also wrong - it does not update
`toline` correctly and it does not do the right thing for `before` context.
A doctest was added to guard us from making a similar mistake again.
Since `maxcontext` is set to `None` (unlimited), there is no behavior
change.
#require no-msys # MSYS will translate web paths as if they were file paths
This tests if CGI files from before d0db3462d568 still work.
$ hg init test
$ cat >hgweb.cgi <<HGWEB
> #!$PYTHON
> #
> # An example CGI script to use hgweb, edit as necessary
>
> import cgitb, os, sys
> cgitb.enable()
>
> # sys.path.insert(0, "/path/to/python/lib") # if not a system-wide install
> from mercurial import hgweb
>
> h = hgweb.hgweb("test", "Empty test repository")
> h.run()
> HGWEB
$ chmod 755 hgweb.cgi
$ cat >hgweb.config <<HGWEBDIRCONF
> [paths]
> test = test
> HGWEBDIRCONF
$ cat >hgwebdir.cgi <<HGWEBDIR
> #!$PYTHON
> #
> # An example CGI script to export multiple hgweb repos, edit as necessary
>
> import cgitb, sys
> cgitb.enable()
>
> # sys.path.insert(0, "/path/to/python/lib") # if not a system-wide install
> from mercurial import hgweb
>
> # The config file looks like this. You can have paths to individual
> # repos, collections of repos in a directory tree, or both.
> #
> # [paths]
> # virtual/path = /real/path
> # virtual/path = /real/path
> #
> # [collections]
> # /prefix/to/strip/off = /root/of/tree/full/of/repos
> #
> # collections example: say directory tree /foo contains repos /foo/bar,
> # /foo/quux/baz. Give this config section:
> # [collections]
> # /foo = /foo
> # Then repos will list as bar and quux/baz.
>
> # Alternatively you can pass a list of ('virtual/path', '/real/path') tuples
> # or use a dictionary with entries like 'virtual/path': '/real/path'
>
> h = hgweb.hgwebdir("hgweb.config")
> h.run()
> HGWEBDIR
$ chmod 755 hgwebdir.cgi
$ . "$TESTDIR/cgienv"
$ $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]