separate import lines from mercurial and general python modules

manpage build: fail early when xmlto is not available When we try to build manpages with xmlto and sed, but xmlto is missing fail at the xmlto stage. Otherwise, one may run `cd doc; make' and miss the warnings like: xmlto: not found sed: hg.1: No such file or directory and end up with empty files installed as manpages.

dirstate: translate forgotten string

util: overwrite sha1 and _fastsha1

test-convert-bzr: tweak sed hack to preserve timezone in 'bzr log' output

zeroconf: remove unwarranted execute bit

test-convert-bzr: use sed instead of awk The run-tests.py script has a list of required tools and awk is not one of them -- luckily it could be replaced by sed in this case.

convert/bzr: handle Bazaar timestamps correctly (issue1652).

dispatch: remember loaded extensions in a real set

gpg: use reverse kwarg to sort sigs in reversed order

util: simplify pipefilter and avoid subprocess race The subprocess module is not thread safe. Spawning a thread to read the output leads to exceptions like this when Mercurial exits: Exception exceptions.TypeError: TypeError("'NoneType' object is not callable",) in <bound method Popen.__del__ of <subprocess.Popen object at 0x9ed0dcc>> ignored The bug is already reported in the Python bug tracker: http://bugs.python.org/issue1731717

Removed unnecessary call to dict.keys.

gpg: fix traceback in revs{} display code

util: kill unused Popen3

config: make remap actually work

util: stop overwriting sha1, overwrite _fastsha1 instead Some modules (like revlog) would import util.sha1 as _sha1. This defeats the purpose of having util.sha1 overwrite itself with a faster version -- revlog would end up always calling the slow version. By always delegating to util._fastsha1 we avoid this at the cost of an extra (but unconditional) indirection.

util: remove md5 This hash function is broken and should not be used by new code. It is currently only used by keepalive.

util: remove warnings when importing md5 and sha

transaction: refactor transaction.abort and rollback to use the same code This adds a change to the way that abort is processed, as it will not continue truncating files beyond the first failure, otherwise the respective functionality is maintained, i.e. abort will not unlink files, but rollback will. Co-contributor: Sune Foldager <cryo@cyanite.org>

test: change repair strip test to illustrate manifest errors

verify: reference the correct linkrev when a filelog is missing when a filelog is missing, the first bad revision is the first revision where the filelog is referenced, not 0.

verify: avoid exception on missing file revlog Previously, accessing the filelinkrevs of a specific file that happens to have already been unlinked from the filesystem, e.g. due to a partial rollback having occurred, will trigger a KeyError being raised. Co-contributor: Sune Foldager <cryo@cyanite.org>

transaction: reset transaction on abort Prevent the use of the transaction after it has been aborted. Co-contributor: Sune Foldager <cryo@cyanite.org>

transaction: ensure finished transactions are not reused All transactional methods on the transaction class have had a decorator added that ensures the transaction is running. Co-contributor: Sune Foldager <cryo@cyanite.org>

mq: simpler check of first character of guard name

commands: fix capitalization in revert help text

setup: require Python 2.4

Merge with crew-stable

bisect: use subprocess to get command return code

setup: cleanup old left-over code