问题
I'm trying to do a hg clone on an Internet facing machine for later use on an offline build machine. Unfortunately mercurial is 3.9.1 on the Internet machine, but 1.4 on the offline machine.
I get the error abort: requirement 'generaldelta' not supported! and also abort: requirement 'dotencode' not supported!
I found this is becuase generaldelta feature was added in 1.9, and dotencode in 1.7. I've used instructions from the MissingRequirement wiki page to downgrade this repo using the following.
hg clone -U --config format.generaldelta=0 --config format.dotencode=0 --pull /tmp/foo /tmp/bar
However the new repo at /tmp/bar still uses generaldelta, although dotencode require has gone. i.e.
cat /tmp/bar/.hg/requires
fncache
generaldelta <=== still there
revlogv1
store
store
How can I rewrite the repo with both generaldelta and dotencode disabled?
回答1:
The config option should have been format.usegeneraldelta not format.generaldelta. i.e.
hg clone -U --config format.usegeneraldelta=0 --config format.dotencode=0 --pull /tmp/foo /tmp/bar
Note the config. options are all config.use<feature-name> apart from config.dotencode see Mercurial format options. Beware as there is not any error checking either.
来源：https://stackoverflow.com/questions/47689309/re-cloning-a-mercurial-repository-without-generaldelta