view contrib/chg/README @ 42006:111de135fc76

branchcache: add attributes to track which nodes are verified

Half of the cost of loading branchcache comes from verifiying all the nodes it
has. We don't need to verify all the nodes in all the cases. Sometimes we need
to verify only a set of nodes for a set of branches. We can ignore nodes of
other branches as we are not going to read them.

This patch introduces two attributes to branchcache class. _verifiedbranches is
a set which will tell the branches for which it's head nodes are verified.
_closedverified is a boolean which will tell whether all closednodes are
verified or not.

Another idea which I had was to keep a set of nodes which are verified, but it
will be more ugly and difficult to track things on node level.

Differential Revision: https://phab.mercurial-scm.org/D6156

cHg
===

A fast client for Mercurial command server running on Unix.

Install:

 $ make
 $ make install

Usage:

 $ chg help                 # show help of Mercurial
 $ alias hg=chg             # replace hg command
 $ chg --kill-chg-daemon    # terminate background server

Environment variables:

Although cHg tries to update environment variables, some of them cannot be
changed after spawning the server. The following variables are specially
handled:

 * configuration files are reloaded automatically by default.
 * CHGHG or HG specifies the path to the hg executable spawned as the
   background command server.

The following variables are available for testing:

 * CHGDEBUG enables debug messages.
 * CHGSOCKNAME specifies the socket path of the background cmdserver.
 * CHGTIMEOUT specifies how many seconds chg will wait before giving up
   connecting to a cmdserver. If it is 0, chg will wait forever. Default: 60