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revlog: don't say "not found" on internal error...
revlog: don't say "not found" on internal error If index_node() returned NULL, then index_find_node() and and nt_partialmatch() used to return -2 to signal that the node was not found. However, we were passing in a revnum to index_node() that we knew should exist, so the only reason it could return NULL was due to some internal error or perhaps out of memory. Let's not use "not found" for these cases. I suppose we never noticed this because these error never happen in practice. I think there are more places where we should error out instead of reporting that the node was not found, but the cases mentioned above were all I cared about right now (because using the same error code for all failures simplified some future patches). Differential Revision: https://phab.mercurial-scm.org/D3457
Jun Wu - - Load All Authors

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Yuya Nishihara
chg: import frontend sources...
 r28060 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:
Jun Wu
chg: remove manual reload logic...
 r28454 * configuration files are reloaded automatically by default.
Yuya Nishihara
chg: import frontend sources...
 r28060 * 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.
Jun Wu
chg: make timeout adjustable...
 r29345 * CHGTIMEOUT specifies how many seconds chg will wait before giving up
Jun Wu
chg: change default connect timeout to 60 seconds...
 r29357 connecting to a cmdserver. If it is 0, chg will wait forever. Default: 60