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−hg-admin-tools version 0.1
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−A set of tools for managing authorization and access control for
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−ssh-based Hg repositories
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−Paul Crowley, paul@lshift.net, 2008-04-15
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−This software may be used and distributed according to the terms
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−of the GNU General Public License, incorporated herein by reference.
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−INSTRUCTIONS FOR USE:
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−This is only one setup - it can be tweaked in many ways, and is as specific as it is only in the interests of brevity.
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−You, and all users of your Hg repository, will need SSH public key authentication set up, preferably working with ssh-agent so you don't have to type in your passphrase all the time.  I assume you've done that in what follows, so if you've done something different you'll need to change it appropriately.
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−Create a user called "hg" on the machine where the repository will live.  I used the command
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−sudo adduser --system --shell /bin/sh --group --disabled-password --gecos "Mercural repository" hg
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−Now create a basic access control setup.  
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−   cd
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−   mkdir hg
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−   cd hg
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−   hg clone ssh://hg.opensource.lshift.net/hg-admin-tools hg-admin-tools
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−   mkdir -p hgadmin/keys/admin
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−   cd hgadmin
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−   ssh-add -L > keys/admin/myname
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−   echo "init admin/* *" > hg-ssh-access.conf
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−   hg init .
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−   hg add
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−   hg commit -m "Initial configuration"
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−You can use whatever you want in place of "myname" and indeed "admin".  The files in ~/hg must be readable by the hg user.  Issue these commands to become the hg user and set up the repository
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−   sudo -u hg -s
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−   cd ~hg
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−   mkdir admin repos
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−   hg clone ~/hg/hg-admin-tools admin/hg-admin-tools
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−   hg clone ~/hg/hgadmin repos/hgadmin
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−   cp admin/hg-admin-tools/hgadmin-hgrc repos/hgadmin/.hg/hgrc
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−   cp admin/hg-admin-tools/hg-ssh-wrapper hg-ssh-wrapper
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−   cd repos/hgadmin
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−   ../../admin/hg-admin-tools/refresh-auth
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−    exit
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−You should now have SSH access to this repository and full control, which you can test like so:
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−   cd ~/hg/hgadmin
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−   echo "[paths]" >> .hg/hgrc
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−   echo "default = ssh://hg@localhost/hgadmin"  >> .hg/hgrc
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−   hg pull
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−   hg push
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−These attempts to push and pull should report no new changes but otherwise work.
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−You can now add other users by putting their keys in an appropriate subdirectory of the "keys" directory, and control their access by editing hg-ssh-access.conf.  Changes will take effect as soon as you push them to the remote ssh server.
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−hg-ssh-access.conf has the following syntax:
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−<rule> <keypattern> <repositorypattern>
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−The "rule" is either "init", "allow", or "deny".  "keypattern" is a glob pattern matched against the name of the key used - for example, in our initial setup "admin/myname" matches "admin/*".  "repositorypattern" is a pattern matched againt the repository name - so "hgadmin" matches "*".  Only boring characters are allowed in patterns and key and repository names - see the source for details.  Blank lines and lines that start with "#" are ignored.
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