Merge with crew

Add download links to hgwebdir index page for allowed archive types. Based on a patch by Colin McMillen <mcmillen@cs.cmu.edu>

Add archive download links to tip on main changeset list page

Combine catching exceptions added in dd4ec4576cc8 in one except statement.

Proper check to see if zip dest needs to be wrapped in tellable From hgweb, calling archival.zipit fails with the error message "Illegal seek". This happens because sys.stdout.tell() throws an exception: Traceback (most recent call last): File "/usr/lib/python2.4/site-packages/mercurial/archival.py", line 99, in addfile self.z.writestr(i, data) File "/usr/lib/python2.4/zipfile.py", line 468, in writestr zinfo.header_offset = self.fp.tell() # Start of header bytes Checking whether hasattr(dest, 'tell') is insufficient, because sys.stdout has a tell() method; you just can't call it. This patch instead determines whether a fileobj is tellable by trying to tell(), wrapping the fileobj if an exception is generated.

merge with crew.

do not check sys.argv from localrepo when running hooks. instead add traceback field to ui class.

Use better names (hg-{usage}-{random}.{suffix}) for temporary files.

Applied $PWD fix (changeset 278f9b13c39a) to tests/test-hook, too.

SunOS fix: Replaced $PWD with `pwd` under certain conditioins $PWD isn't up to date, observed on SunOS 5.8