Create new Mercurial repository from a sub directory of an existing repository.sh

# cd to the full repo directory
cd path/to/full_repo

# export tracked files in sub directory by creating a filemap
export SUBDIR=name_of_subdir
hg locate -I "$SUBDIR" | awk '{print "include \"" $1 "\"";}' > ../filemap.txt
echo "rename \"$SUBDIR\" ." >> ../filemap.txt

# create new repo using filemap
hg convert --filemap ../filemap.txt . ../new_repo_name

# cd to new repo and update to latest head revision, the update is required if you want to see your files
cd ../new_repo_name
hg update