hgweb: catch util.Abort raised by addchangegroup Right now, if a pretxnchangegroup hook fails, we send some HTML error message to the client and the transaction is not rolled back (issue499). Catching util.Abort allows us to send a decent message to the client and for some reason makes the rollback complete. This patch is not perfect since it doesn't fix the reason why the transaction wasn't rolled back (maybe some circular references?). Also, the transaction is aborted only after we've sent the response back to the client and the "transaction aborted" message ends up in the logs of the web server.

#!/bin/sh

hg init

echo foo > a
echo foo > b
hg add a b

hg ci -m "test" -d "1000000 0"

echo blah > a

hg ci -m "branch a" -d "1000000 0"

hg co 0

echo blah > b

hg ci -m "branch b" -d "1000000 0"
HGMERGE=true hg merge 1

hg ci -m "merge b/a -> blah" -d "1000000 0"

hg co 1
HGMERGE=true hg merge 2
hg ci -m "merge a/b -> blah" -d "1000000 0"

hg log
hg debugindex .hg/store/00changelog.i

echo

echo 1
hg manifest --debug 1
echo 2
hg manifest --debug 2
echo 3
hg manifest --debug 3
echo 4
hg manifest --debug 4

echo

hg debugindex .hg/store/data/a.i

hg verify